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CN110062473A - Accidental access method, terminal device and the network equipment - Google Patents

Accidental access method, terminal device and the network equipment Download PDF

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Publication number
CN110062473A
CN110062473A CN201810055552.0A CN201810055552A CN110062473A CN 110062473 A CN110062473 A CN 110062473A CN 201810055552 A CN201810055552 A CN 201810055552A CN 110062473 A CN110062473 A CN 110062473A
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random access
sequences
sequence
preamble
access sequence
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CN110062473B (en
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廖树日
丁梦颖
胡远洲
汪凡
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/CN2018/119624 priority patent/WO2019141013A1/en
Priority to PCT/CN2019/072373 priority patent/WO2019141244A1/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access
    • H04W74/0841Random access procedures, e.g. with 4-step access with collision treatment
    • H04W74/085Random access procedures, e.g. with 4-step access with collision treatment collision avoidance

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the present application provides a kind of accidental access method, terminal device and the network equipment, this method comprises: terminal device obtains the first random access mark;The terminal device selects the first random access to identify corresponding first random access sequence set in random access sequence collection is combined, the random access sequence collection is combined including L random access sequence set, each random access sequence set includes J random access sequence, and the L and the J are positive integer and the J is more than or equal to 2;The terminal device sends X the first random access sequences to the network equipment, and the X is positive integer.Accidental access method, terminal device and the network equipment provided by the embodiments of the present application, multiple terminal devices can be reduced while accessing the probability (i.e. reduction random access collision probability) of cell using the request of identical random access sequence, improve the RACH capacity of cell.

Description

随机接入方法、终端设备和网络设备Random access method, terminal device and network device

技术领域technical field

本申请实施例涉及通信技术,尤其涉及一种随机接入方法、终端设备和网络设备。The embodiments of the present application relate to communication technologies, and in particular, to a random access method, terminal equipment, and network equipment.

背景技术Background technique

为了应对未来爆炸性的移动数据流量增长、海量移动通信的设备连接、不断涌现的各类新业务和应用场景,可以支持多种业务的第五代(the fifth generation,5G)通信系统应运而生。相比于长期演进(long term evolution,LTE)通信系统下的随机接入场景,5G通信系统的随机接入场景要求服务小区的用户数可以达到LTE通信系统下的服务小区的用户数的10-100倍,要求随机接入信道(random access channel,RACH)可以支持更多的功能(例如可以指示上下行波束等),要求RACH的频谱效率在低于6GHz场景下RACH频谱效率可以提高4倍,在高于6GHz场景下RACH频谱效率可以提高64倍。In order to cope with the explosive growth of mobile data traffic in the future, the connection of massive mobile communication devices, and the emerging of various new services and application scenarios, the fifth generation (5G) communication system that can support multiple services emerges as the times require. Compared with the random access scenario under the long term evolution (LTE) communication system, the random access scenario of the 5G communication system requires that the number of users in the serving cell can reach 10-10% of the number of users in the serving cell under the LTE communication system. 100 times, it is required that the random access channel (RACH) can support more functions (for example, it can indicate the uplink and downlink beams, etc.), and the spectral efficiency of RACH is required to be increased by 4 times in the scenario below 6GHz. RACH spectral efficiency can be improved by 64 times in scenarios above 6GHz.

现有的LTE通信系统中,网络设备可以通过对不同的Zadoff-Chu(ZC)根序列进行循环移位,为每个小区生成一个上行随机接入所需的前导(preamble)集合。其中,每个小区的preamble集合可以包括64个ZC序列(ZC根序列循环移位生成的序列),每个ZC序列对应一个preamble身份标识号(identification,ID)。当终端设备采用竞争随机接入的方式,接入某一小区时,终端设备可以在该小区所使用的preamble集合中随机选择一个preamble ID对应的ZC序列作为随机接入序列,发送给该小区所属的网络设备,以请求接入该小区。In the existing LTE communication system, the network device can generate a preamble set required for uplink random access for each cell by performing cyclic shift on different Zadoff-Chu (ZC) root sequences. The preamble set of each cell may include 64 ZC sequences (sequences generated by cyclic shift of the ZC root sequence), and each ZC sequence corresponds to a preamble identification number (identification, ID). When the terminal device uses the competitive random access method to access a certain cell, the terminal device can randomly select a ZC sequence corresponding to the preamble ID from the preamble set used by the cell as the random access sequence, and send it to the cell to which the cell belongs. network equipment to request access to the cell.

5G通信系统的随机接入场景要求服务小区的用户数可以达到LTE通信系统下的服务小区的用户数的10-100倍。因此,当5G通信系统中的终端设备采用竞争随机接入的方式接入小区时,若仍然沿用LTE通信系统中生成随机接入序列的方式,则易出现多个终端设备同时使用相同的随机接入序列请求接入小区的情况(即随机接入发生碰撞),导致该多个终端设备接入小区失败。The random access scenario of the 5G communication system requires that the number of users in the serving cell can reach 10-100 times the number of users in the serving cell under the LTE communication system. Therefore, when the terminal equipment in the 5G communication system uses the competitive random access method to access the cell, if the method of generating the random access sequence in the LTE communication system is still used, it is easy for multiple terminal equipment to use the same random access sequence at the same time. If the incoming sequence requests access to the cell (ie, random access collides), the multiple terminal devices fail to access the cell.

发明内容SUMMARY OF THE INVENTION

本申请实施例提供一种随机接入方法、终端设备和网络设备,能够降低多个终端设备同时使用相同的preamble序列请求接入小区的概率(即降低随机接入碰撞概率),提高小区的RACH容量。The embodiments of the present application provide a random access method, terminal equipment, and network equipment, which can reduce the probability that multiple terminal equipments use the same preamble sequence to request access to a cell at the same time (that is, reduce the random access collision probability), and improve the RACH of the cell. capacity.

第一方面,本申请实施例提供一种随机接入方法,该方法包括:In a first aspect, an embodiment of the present application provides a random access method, which includes:

终端设备获取第一随机接入标识;The terminal device obtains the first random access identifier;

所述终端设备在随机接入序列集合组中选择第一随机接入标识对应的第一随机接入序列集合,所述随机接入序列集合组包括L个随机接入序列集合,每个所述随机接入序列集合包括J个随机接入序列,所述L和所述J均为正整数、且所述J大于等于2;The terminal device selects a first random access sequence set corresponding to the first random access identifier in a random access sequence set group, where the random access sequence set group includes L random access sequence sets, each of the random access sequence sets. The random access sequence set includes J random access sequences, the L and the J are both positive integers, and the J is greater than or equal to 2;

所述终端设备向网络设备发送X个第一随机接入序列,所述X为正整数。The terminal device sends X first random access sequences to the network device, where X is a positive integer.

通过第一方面提供的随机接入方法,通过将一个preamble ID对应一个preamble序列集合中的J个preamble序列的方式,可以使终端设备依据第一preamble ID对应的第一preamble序列集合得到X个第一preamble序列灵活多样。因此,当终端设备采用上述方式生成请求接入待接入小区的preamble序列时,可以降低多个终端设备同时使用相同的preamble序列请求接入小区的概率(即降低随机接入碰撞概率),从而可以提高小区的RACH容量。With the random access method provided in the first aspect, by corresponding one preamble ID to J preamble sequences in a preamble sequence set, the terminal device can obtain X number of preamble sequences according to the first preamble sequence set corresponding to the first preamble ID A preamble sequence is flexible and diverse. Therefore, when a terminal device uses the above method to generate a preamble sequence for requesting access to a cell to be accessed, the probability that multiple terminal devices use the same preamble sequence to request access to a cell at the same time can be reduced (that is, the probability of random access collision is reduced), thereby reducing the probability of a random access collision. The RACH capacity of the cell can be improved.

在一种可能的设计中,每个所述第一随机接入序列为根据所述第一随机接入序列集合得到的随机接入序列。In a possible design, each of the first random access sequences is a random access sequence obtained according to the first set of random access sequences.

在一种可能的设计中,所述X等于1,所述第一随机接入序列为:所述第一随机接入序列集合中的J个随机接入序列相加生成的随机接入序列。In a possible design, the X is equal to 1, and the first random access sequence is: a random access sequence generated by adding J random access sequences in the first set of random access sequences.

通过该可能的设计提供的随机接入方法,通过将一个preamble ID对应一个preamble序列集合中的J个preamble序列,可以使终端设备在采用第一preamble ID对应的第一preamble序列集合的J个preamble序列相加的方式生成preamble序列时,多个终端设备使用同一preamble序列集合生成的一个请求接入待接入小区的preamble序列的概率会降低,即可以降低多个终端设备同时使用相同的preamble序列请求接入小区的概率(即降低随机接入碰撞概率),从而可以提高小区的RACH容量。Through the random access method provided by this possible design, by corresponding one preamble ID to J preamble sequences in a preamble sequence set, the terminal device can use J preamble sequences in the first preamble sequence set corresponding to the first preamble ID When the preamble sequence is generated by means of sequence addition, the probability of a preamble sequence generated by multiple terminal devices using the same set of preamble sequences to request access to the cell to be accessed will be reduced, that is, the simultaneous use of the same preamble sequence by multiple terminal devices can be reduced. The probability of requesting access to a cell (ie, reducing the probability of random access collision), so that the RACH capacity of the cell can be improved.

在一种可能的设计中,所述终端设备向网络设备发送X个第一随机接入序列,包括:In a possible design, the terminal device sends X first random access sequences to the network device, including:

所述终端设备将所述第一随机接入序列映射在第一时频资源上发送给所述网络设备,所述第一时频资源包括:1个允许发送所述第一随机接入序列的时域资源和1个允许发送所述第一随机接入序列的频域资源。The terminal device maps the first random access sequence on a first time-frequency resource and sends it to the network device, where the first time-frequency resource includes: one device that is allowed to send the first random access sequence; time domain resources and one frequency domain resource that is allowed to send the first random access sequence.

通过该可能的设计提供的随机接入方法,通过第一preamble序列集合的J个preamble序列相加的方式生成第一preamble序列的方式,可以使第一preamble序列长度与LTE通信系统下终端设备发送preamble序列的长度保持相同,从而使终端设备发送第一preamble序列时所使用的时频资源大小,与LTE通信系统中的终端设备发送preamble序列时所使用的时频资源大小保持相同。这样,终端设备可以沿用LTE通信系统中终端设备发送preamble序列时所使用的子载波间隔发送第一preamble序列,使得终端设备发送的第一preamble序列具有更好的抗时延扩展性能,支持小区半径大。Through the random access method provided by this possible design, the first preamble sequence is generated by adding J preamble sequences in the first preamble sequence set, so that the length of the first preamble sequence can be equal to the length of the first preamble sequence sent by the terminal device in the LTE communication system. The length of the preamble sequence remains the same, so that the time-frequency resource size used by the terminal device to send the first preamble sequence remains the same as the time-frequency resource size used by the terminal device to send the preamble sequence in the LTE communication system. In this way, the terminal device can send the first preamble sequence by using the subcarrier interval used by the terminal device to send the preamble sequence in the LTE communication system, so that the first preamble sequence sent by the terminal device has better anti-delay expansion performance and supports the cell radius big.

在一种可能的设计中,所述J个随机接入序列为正交ZC序列或准正交ZC序列。In a possible design, the J random access sequences are orthogonal ZC sequences or quasi-orthogonal ZC sequences.

在一种可能的设计中,所述X等于所述J,每个所述第一随机接入序列为:所述第一随机接入序列集合中的一个随机接入序列。In a possible design, the X is equal to the J, and each of the first random access sequences is: a random access sequence in the first random access sequence set.

通过该可能的设计提供的随机接入方法,通过将一个preamble ID对应一个preamble序列集合中的J个preamble序列,可以使终端设备将第一preamble ID对应的第一preamble序列集合的每一个preamble序列作为一个preamble序列,从而使多个终端设备生成的preamble序列相同的概率会降低,即可以降低多个终端设备同时使用相同的preamble序列请求接入小区的概率(即降低随机接入碰撞概率),从而可以提高小区的RACH容量。在与LTE通信系统采用相同的时频资源发送X个第一随机接入序列时,可以提高抗时延扩展性能,支持小区半径大。Through the random access method provided by this possible design, by corresponding one preamble ID to J preamble sequences in a preamble sequence set, the terminal device can make each preamble sequence in the first preamble sequence set corresponding to the first preamble ID As a preamble sequence, the probability that the preamble sequences generated by multiple terminal devices are the same will be reduced, that is, the probability of multiple terminal devices using the same preamble sequence to request access to the cell at the same time can be reduced (that is, the probability of random access collision is reduced), Thus, the RACH capacity of the cell can be improved. When X first random access sequences are sent using the same time-frequency resources as the LTE communication system, the anti-delay extension performance can be improved, and a large cell radius can be supported.

在一种可能的设计中,所述终端设备向网络设备发送X个第一随机接入序列,包括:In a possible design, the terminal device sends X first random access sequences to the network device, including:

所述终端设备将所述X个第一随机接入序列映射在第二时频资源上发送给所述网络设备,所述第二时频资源包括:1个允许发送所述第一随机接入序列的时域资源和X个允许发送所述第一随机接入序列的频域资源。The terminal device maps the X first random access sequences on second time-frequency resources and sends them to the network device, where the second time-frequency resources include: 1 that is allowed to send the first random access sequence time-domain resources of the sequence and X frequency-domain resources allowed to transmit the first random access sequence.

在一种可能的设计中,所述第一随机接入序列集合包括M个随机接入序列子集,每个所述随机接入序列子集包括Y个随机接入序列,所述M和所述Y均为正整数;In a possible design, the first random access sequence set includes M random access sequence subsets, each random access sequence subset includes Y random access sequences, and the M and all random access sequence subsets include M random access sequence subsets. The above Y is a positive integer;

每个所述第一随机接入序列为根据一个随机接入序列子集得到的随机接入序列。Each of the first random access sequences is a random access sequence obtained according to a random access sequence subset.

在一种可能的设计中,所述X等于所述M,每个所述第一随机接入序列为:一个随机接入序列子集中的Y个随机接入序列相加生成的随机接入序列。In a possible design, the X is equal to the M, and each of the first random access sequences is: a random access sequence generated by adding Y random access sequences in a random access sequence subset .

通过该可能的设计提供的随机接入方法,通过将1个preamble ID对应M*Y个preamble序列,从而使多个终端设备生成的preamble序列相同的概率会降低,即可以降低多个终端设备同时使用相同的preamble序列请求接入小区的概率(即降低随机接入碰撞概率),从而可以提高小区的RACH容量。Through the random access method provided by this possible design, one preamble ID corresponds to M*Y preamble sequences, so that the probability that the preamble sequences generated by multiple terminal devices are the same will be reduced, that is, the simultaneous occurrence of multiple terminal devices can be reduced. The probability of requesting access to a cell by using the same preamble sequence (ie, reducing the probability of random access collision) can improve the RACH capacity of the cell.

在一种可能的设计中,所述终端设备向网络设备发送X个第一随机接入序列,包括:In a possible design, the terminal device sends X first random access sequences to the network device, including:

所述终端设备将所述X个第一随机接入序列映射在第三时频资源上发送给所述网络设备,所述第三时频资源包括:M个允许发送所述第一随机接入序列的时域资源和1个允许发送所述第一随机接入序列的频域资源;或者,所述第三时频资源包括:1个允许发送所述第一随机接入序列的时域资源和M个允许发送所述第一随机接入序列的频域资源。The terminal device maps the X first random access sequences on third time-frequency resources and sends them to the network device, where the third time-frequency resources include: M number of first random access sequences allowed to be sent time-domain resources of the sequence and one frequency-domain resource allowed to send the first random access sequence; or, the third time-frequency resource includes: one time-domain resource allowed to send the first random access sequence and M frequency domain resources that are allowed to transmit the first random access sequence.

在一种可能的设计中,所述Y个随机接入序列为正交ZC序列或准正交ZC序列。In a possible design, the Y random access sequences are orthogonal ZC sequences or quasi-orthogonal ZC sequences.

在一种可能的设计中,所述X等于所述M与所述Y的乘积,每个所述第一随机接入序列为:一个随机接入序列子集中的一个随机接入序列。In a possible design, the X is equal to the product of the M and the Y, and each of the first random access sequences is: a random access sequence in a random access sequence subset.

通过该可能的设计提供的随机接入方法,通过将1个preamble ID对应M*Y个preamble序列,从而使多个终端设备生成的preamble序列相同的概率会降低,即可以降低多个终端设备同时使用相同的preamble序列请求接入小区的概率(即降低随机接入碰撞概率),从而可以提高小区的RACH容量。在与LTE通信系统采用相同的时频资源发送X个第一随机接入序列时,该方法可以增大RACH子载波间隔,抗频偏性能较好。Through the random access method provided by this possible design, one preamble ID corresponds to M*Y preamble sequences, so that the probability that the preamble sequences generated by multiple terminal devices are the same will be reduced, that is, the simultaneous occurrence of multiple terminal devices can be reduced. The probability of requesting access to a cell by using the same preamble sequence (ie, reducing the probability of random access collision) can improve the RACH capacity of the cell. When using the same time-frequency resources as the LTE communication system to send X first random access sequences, the method can increase the RACH subcarrier interval, and has better anti-frequency offset performance.

在一种可能的设计中,所述终端设备向网络设备发送X个第一随机接入序列,包括:In a possible design, the terminal device sends X first random access sequences to the network device, including:

所述终端设备将所述X个第一随机接入序列映射在第四时频资源上发送给所述网络设备,所述第四时频资源包括:M个允许发送所述第一随机接入序列的时域资源和Y个允许发送所述第一随机接入序列的频域资源。The terminal device maps the X first random access sequences on fourth time-frequency resources and sends them to the network device, where the fourth time-frequency resources include: M number of first random access sequences allowed to be sent time-domain resources of the sequence and Y frequency-domain resources allowed to transmit the first random access sequence.

在一种可能的设计中,所述第一随机接入序列集合包括M个随机接入序列子集,每个所述随机接入序列子集包括K个随机接入序列组,每个所述随机接入序列组包括Q个随机接入序列,其中,所述M,所述K和所述Q均为正整数;In a possible design, the first random access sequence set includes M random access sequence subsets, each random access sequence subset includes K random access sequence groups, and each of the random access sequence subsets includes K random access sequence groups. The random access sequence group includes Q random access sequences, wherein the M, the K and the Q are all positive integers;

每个所述第一随机接入序列为根据一个随机接入序列组得到的随机接入序列。Each of the first random access sequences is a random access sequence obtained according to a random access sequence group.

通过该可能的设计提供的随机接入方法,通过将1个preamble ID对应M*K*Y个preamble序列,从而使多个终端设备生成的preamble序列相同的概率会降低,即可以降低多个终端设备同时使用相同的preamble序列请求接入小区的概率(即降低随机接入碰撞概率),从而可以提高小区的RACH容量。在与LTE通信系统采用相同的时频资源发送X个第一随机接入序列时,该方法可以增大RACH子载波间隔,抗频偏性能较好。Through the random access method provided by this possible design, one preamble ID corresponds to M*K*Y preamble sequences, so that the probability of the same preamble sequences generated by multiple terminal devices is reduced, that is, multiple terminals can be reduced. At the same time, the device uses the same preamble sequence to request the probability of accessing the cell (that is, reducing the probability of random access collision), so that the RACH capacity of the cell can be improved. When using the same time-frequency resources as the LTE communication system to send X first random access sequences, the method can increase the RACH subcarrier interval, and has better anti-frequency offset performance.

在一种可能的设计中,所述X为所述M与所述K的乘积,每个所述第一随机接入序列为:一个随机接入序列组中的Q个随机接入序列相加生成的随机接入序列。In a possible design, the X is the product of the M and the K, and each of the first random access sequences is: adding Q random access sequences in a random access sequence group Generated random access sequence.

在一种可能的设计中,所述终端设备向网络设备发送X个第一随机接入序列,包括:In a possible design, the terminal device sends X first random access sequences to the network device, including:

所述终端设备将所述X个第一随机接入序列映射在第五时频资源上发送给所述网络设备,所述第五时频资源包括:M个允许发送所述第一随机接入序列的时域资源和K个允许发送所述第一随机接入序列的频域资源。The terminal device maps the X first random access sequences on a fifth time-frequency resource and sends it to the network device, where the fifth time-frequency resource includes: M numbers that are allowed to send the first random access sequence time domain resources of the sequence and K frequency domain resources allowed to transmit the first random access sequence.

在一种可能的设计中,所述Q个随机接入序列为正交ZC序列或准正交ZC序列。In a possible design, the Q random access sequences are orthogonal ZC sequences or quasi-orthogonal ZC sequences.

第二方面,本申请实施例提供一种随机接入方法,该方法包括:In a second aspect, an embodiment of the present application provides a random access method, which includes:

网络设备广播随机接入序列集合组配置信息,所述随机接入序列集合组包括L个随机接入序列集合,每个所述随机接入序列集合包括J个随机接入序列,所述L和所述J均为正整数、且所述J大于等于2;The network device broadcasts random access sequence set group configuration information, the random access sequence set group includes L random access sequence sets, each of the random access sequence sets includes J random access sequences, and the L and The J are all positive integers, and the J is greater than or equal to 2;

所述网络设备检测终端设备发送的X个第一随机接入序列,所述X为正整数;The network device detects X first random access sequences sent by the terminal device, where X is a positive integer;

所述网络设备确定所述X个第一随机接入序列对应的随机接入标识。The network device determines random access identifiers corresponding to the X first random access sequences.

在一种可能的设计中,每个所述第一随机接入序列为根据所述第一随机接入序列集合得到的随机接入序列。In a possible design, each of the first random access sequences is a random access sequence obtained according to the first set of random access sequences.

在一种可能的设计中,所述X等于1,所述第一随机接入序列为:所述第一随机接入序列集合中的J个随机接入序列相加生成的随机接入序列。In a possible design, the X is equal to 1, and the first random access sequence is: a random access sequence generated by adding J random access sequences in the first set of random access sequences.

在一种可能的设计中,所述网络设备检测终端设备发送的X个第一随机接入序列,包括:In a possible design, the network device detects X first random access sequences sent by the terminal device, including:

所述网络设备在第一时频资源上检测所述X个第一随机接入序列,所述第一时频资源包括:1个允许发送所述第一随机接入序列的时域资源和1个允许发送所述第一随机接入序列的频域资源。The network device detects the X first random access sequences on first time-frequency resources, where the first time-frequency resources include: 1 time domain resource that allows sending the first random access sequence and 1 a frequency domain resource that is allowed to transmit the first random access sequence.

在一种可能的设计中,所述网络设备在第一时频资源上检测所述X个第一随机接入序列,包括:In a possible design, the network device detects the X first random access sequences on the first time-frequency resource, including:

所述网络设备根据在所述第一时频资源上接收到的所述X个第一随机接入序列,从所述随机接入序列集合组中筛选出至少一个第二随机接入序列集合;The network device selects at least one second random access sequence set from the random access sequence set group according to the X first random access sequences received on the first time-frequency resource;

所述网络设备根据所述至少一个第二随机接入序列集合,确定所述X个第一随机序列对应的随机接入序列集合。The network device determines, according to the at least one second random access sequence set, a random access sequence set corresponding to the X first random sequences.

在一种可能的设计中,所述网络设备根据所述至少一个第二随机接入序列集合,确定所述X个第一随机序列对应的随机接入序列集合,包括:In a possible design, the network device determines the random access sequence set corresponding to the X first random sequences according to the at least one second random access sequence set, including:

所述网络设备对每个所述第二随机接入序列集合中的J个随机接入序列进行合并,将接收功率最大且大于预设门限值的第二随机接入序列集合作为所述X个第一随机序列对应的随机接入序列集合。The network device combines the J random access sequences in each of the second random access sequence sets, and uses the second random access sequence set with the maximum received power and greater than a preset threshold value as the X A set of random access sequences corresponding to the first random sequence.

在一种可能的设计中,所述J个随机接入序列为正交ZC序列或准正交ZC序列。In a possible design, the J random access sequences are orthogonal ZC sequences or quasi-orthogonal ZC sequences.

在一种可能的设计中,所述X等于所述J,每个所述第一随机接入序列为:所述第一随机接入序列集合中的一个随机接入序列。In a possible design, the X is equal to the J, and each of the first random access sequences is: a random access sequence in the first random access sequence set.

在一种可能的设计中,所述网络设备检测终端设备发送的X个第一随机接入序列,包括:In a possible design, the network device detects X first random access sequences sent by the terminal device, including:

所述网络设备在第二时频资源上检测所述X个第一随机接入序列,所述第二时频资源包括:1个允许发送所述第一随机接入序列的时域资源和X个允许发送所述第一随机接入序列的频域资源。The network device detects the X first random access sequences on second time-frequency resources, where the second time-frequency resources include: 1 time-domain resource that is allowed to send the first random access sequence and X a frequency domain resource that is allowed to transmit the first random access sequence.

在一种可能的设计中,所述网络设备在第二时频资源上检测所述第一随机接入序列,包括:In a possible design, the network device detects the first random access sequence on the second time-frequency resource, including:

所述网络设备根据在所述X个所述频域资源上接收到的所述X个第一随机接入序列,从所述随机接入序列集合组中筛选出至少一个第三随机接入序列集合;The network device selects at least one third random access sequence from the random access sequence set group according to the X first random access sequences received on the X frequency domain resources gather;

所述网络设备根据所述至少一个第三随机接入序列集合,确定所述X个第一随机序列对应的随机接入序列集合。The network device determines, according to the at least one third random access sequence set, a random access sequence set corresponding to the X first random sequences.

在一种可能的设计中,所述网络设备根据所述至少一个第三随机接入序列集合,确定所述X个第一随机序列对应的随机接入序列集合,包括:In a possible design, the network device determines the random access sequence set corresponding to the X first random sequences according to the at least one third random access sequence set, including:

所述网络设备对每个所述第三随机接入序列集合中的J个随机接入序列进行合并,将接收功率最大且大于预设门限值的第三随机接入序列集合作为所述第一随机序列对应的随机接入序列集合。The network device combines the J random access sequences in each of the third random access sequence sets, and uses the third random access sequence set with the maximum received power and greater than a preset threshold value as the third random access sequence set. A random access sequence set corresponding to a random sequence.

在一种可能的设计中,所述第一随机接入序列集合包括M个随机接入序列子集,每个所述随机接入序列子集包括Y个随机接入序列,所述M和所述Y均为正整数;In a possible design, the first random access sequence set includes M random access sequence subsets, each random access sequence subset includes Y random access sequences, and the M and all random access sequence subsets include M random access sequence subsets. The above Y is a positive integer;

每个所述第一随机接入序列为根据一个随机接入序列子集得到的随机接入序列。Each of the first random access sequences is a random access sequence obtained according to a random access sequence subset.

在一种可能的设计中,所述X等于所述M,每个所述第一随机接入序列为:一个随机接入序列子集中的Y个随机接入序列相加生成的随机接入序列。In a possible design, the X is equal to the M, and each of the first random access sequences is: a random access sequence generated by adding Y random access sequences in a random access sequence subset .

在一种可能的设计中,所述网络设备检测终端设备发送的X个第一随机接入序列,包括:In a possible design, the network device detects X first random access sequences sent by the terminal device, including:

所述网络设备在第三时频资源上检测所述X个第一随机接入序列,所述第三时频资源包括:M个允许发送所述第一随机接入序列的时域资源和1个允许发送所述第一随机接入序列的频域资源;或者,所述第三时频资源包括:1个允许发送所述第一随机接入序列的时域资源和M个允许发送所述第一随机接入序列的频域资源。The network device detects the X first random access sequences on a third time-frequency resource, where the third time-frequency resource includes: M time-domain resources that are allowed to send the first random access sequence and 1 frequency domain resources allowed to send the first random access sequence; or, the third time-frequency resources include: 1 time domain resource allowed to send the first random access sequence and M resources allowed to send the first random access sequence Frequency domain resources of the first random access sequence.

在一种可能的设计中,在所述第三时频资源包括M个允许发送所述第一随机接入序列的时域资源和1个允许发送所述第一随机接入序列的频域资源时,所述网络设备在第三时频资源上检测所述X个第一随机接入序列,包括:In a possible design, the third time-frequency resource includes M time-domain resources allowed to send the first random access sequence and 1 frequency-domain resource allowed to send the first random access sequence When , the network device detects the X first random access sequences on the third time-frequency resource, including:

所述网络设备根据在X个所述时域资源上接收到的所述X个第一随机接入序列,从所述随机接入序列集合组中筛选出至少X个第一随机接入序列子集;The network device selects at least X first random access sequence subgroups from the random access sequence set group according to the X first random access sequences received on the X time domain resources. set;

所述网络设备在每个所述时域资源上根据至少一个所述第一随机接入序列子集确定至少一个第二随机接入序列子集;determining, by the network device, at least one second random access sequence subset according to at least one of the first random access sequence subsets on each of the time domain resources;

所述网络设备根据在所述X个时域资源上确定的至少X个第二随机接入序列子集,确定所述X个第一随机序列对应的随机接入序列集合。The network device determines the random access sequence set corresponding to the X first random sequences according to the at least X second random access sequence subsets determined on the X time domain resources.

在一种可能的设计中,所述网络设备在每个所述时域资源上根据至少一个所述第一随机接入序列子集确定至少一个第二随机接入序列子集,包括:In a possible design, the network device determines at least one second random access sequence subset according to at least one of the first random access sequence subsets on each of the time domain resources, including:

所述网络设备在每个所述时域资源上对每个所述第一随机接入序列子集中的Y个随机接入序列进行合并,将接收功率最大且大于预设门限值的第一随机接入序列子集作为第二随机接入序列子集。The network device combines the Y random access sequences in each of the first random access sequence subsets on each of the time domain resources, and combines the first random access sequence with the maximum received power and greater than the preset threshold value. The random access sequence subset is used as the second random access sequence subset.

在一种可能的设计中,所述网络设备根据在所述X个时域资源上确定的至少X个第二随机接入序列子集,确定所述X个第一随机序列对应的随机接入序列集合,包括:In a possible design, the network device determines random accesses corresponding to the X first random sequences according to at least X second random access sequence subsets determined on the X time domain resources A collection of sequences, including:

所述网络设备根据所述X个时域资源,对所述至少X个第二随机接入序列子集进行合并,将接收功率最大且大于预设门限值的随机接入序列集合作为所述X个第一随机序列对应的随机接入序列集合。The network device combines the at least X second random access sequence subsets according to the X time domain resources, and uses the random access sequence set with the maximum received power and greater than a preset threshold value as the A set of random access sequences corresponding to the X first random sequences.

在一种可能的设计中,所述Y个随机接入序列为正交ZC序列或准正交ZC序列。In a possible design, the Y random access sequences are orthogonal ZC sequences or quasi-orthogonal ZC sequences.

在一种可能的设计中,所述网络设备确定所述X个第一随机接入序列对应的随机接入标识,包括:In a possible design, the network device determines the random access identifiers corresponding to the X first random access sequences, including:

所述网络设备将所述X个第一随机接入序列对应的随机接入序列集合的随机接入标识,作为所述X个第一随机接入序列对应的随机接入标识。The network device uses the random access identifiers of the random access sequence sets corresponding to the X first random access sequences as the random access identifiers corresponding to the X first random access sequences.

在一种可能的设计中,所述X等于所述M与所述Y的乘积,每个所述第一随机接入序列为:一个随机接入序列子集中的一个随机接入序列。In a possible design, the X is equal to the product of the M and the Y, and each of the first random access sequences is: a random access sequence in a random access sequence subset.

在一种可能的设计中,所述网络设备检测终端设备发送的X个第一随机接入序列,包括:In a possible design, the network device detects X first random access sequences sent by the terminal device, including:

所述网络设备在第四时频资源上检测所述X个第一随机接入序列,所述第四时频资源包括:M个允许发送所述第一随机接入序列的时域资源和Y个允许发送所述第一随机接入序列的频域资源。The network device detects the X first random access sequences on a fourth time-frequency resource, where the fourth time-frequency resource includes: M time-domain resources that are allowed to send the first random access sequence and Y a frequency domain resource that is allowed to transmit the first random access sequence.

在一种可能的设计中,所述第一随机接入序列集合包括M个随机接入序列子集,每个所述随机接入序列子集包括K个随机接入序列组,每个所述随机接入序列组包括Q个随机接入序列,其中,所述M,所述K和所述Q均为正整数;In a possible design, the first random access sequence set includes M random access sequence subsets, each random access sequence subset includes K random access sequence groups, and each of the random access sequence subsets includes K random access sequence groups. The random access sequence group includes Q random access sequences, wherein the M, the K and the Q are all positive integers;

每个所述第一随机接入序列为根据一个随机接入序列组得到的随机接入序列。Each of the first random access sequences is a random access sequence obtained according to a random access sequence group.

在一种可能的设计中,所述X为所述M与所述K的乘积,每个所述第一随机接入序列为:一个随机接入序列组中的Q个随机接入序列相加生成的随机接入序列。In a possible design, the X is the product of the M and the K, and each of the first random access sequences is: adding Q random access sequences in a random access sequence group Generated random access sequence.

在一种可能的设计中,所述网络设备检测终端设备发送的X个第一随机接入序列,包括:In a possible design, the network device detects X first random access sequences sent by the terminal device, including:

所述网络设备在第五时频资源上检测所述X个第一随机接入序列,所述第五时频资源包括:M个允许发送所述第一随机接入序列的时域资源和K个允许发送所述第一随机接入序列的频域资源。The network device detects the X first random access sequences on a fifth time-frequency resource, where the fifth time-frequency resource includes: M time-domain resources allowed to send the first random access sequence and K a frequency domain resource that is allowed to transmit the first random access sequence.

在一种可能的设计中,所述Q个随机接入序列为正交ZC序列或准正交ZC序列。In a possible design, the Q random access sequences are orthogonal ZC sequences or quasi-orthogonal ZC sequences.

上述第二方面和第二方面的各可能的设计所提供的随机接入方法,其有益效果可以参见上述第一方面和第一方面的各可能的设计所带来的有益效果,在此不加赘述。For the random access method provided by the above-mentioned second aspect and each possible design of the second aspect, the beneficial effect of the above-mentioned first aspect and each possible design of the first aspect can be referred to the beneficial effect brought by the above-mentioned first aspect, which is not added here. Repeat.

第三方面,本申请实施例提供一种终端设备,该终端设备包括:In a third aspect, an embodiment of the present application provides a terminal device, where the terminal device includes:

处理模块,用于获取第一随机接入标识,并在随机接入序列集合组中选择第一随机接入标识对应的第一随机接入序列集合,所述随机接入序列集合组包括L个随机接入序列集合,每个所述随机接入序列集合包括J个随机接入序列,所述L和所述J均为正整数、且所述J大于等于2;A processing module, configured to obtain a first random access identifier, and select a first random access sequence set corresponding to the first random access identifier from the random access sequence set group, where the random access sequence set group includes L a random access sequence set, each of the random access sequence sets includes J random access sequences, the L and the J are both positive integers, and the J is greater than or equal to 2;

发送模块,用于向网络设备发送X个第一随机接入序列,所述X为正整数。A sending module, configured to send X first random access sequences to the network device, where X is a positive integer.

在一种可能的设计中,每个所述第一随机接入序列为根据所述第一随机接入序列集合得到的随机接入序列。In a possible design, each of the first random access sequences is a random access sequence obtained according to the first set of random access sequences.

在一种可能的设计中,所述X等于1,所述第一随机接入序列为:所述第一随机接入序列集合中的J个随机接入序列相加生成的随机接入序列。In a possible design, the X is equal to 1, and the first random access sequence is: a random access sequence generated by adding J random access sequences in the first set of random access sequences.

在一种可能的设计中,所述发送模块,具体用于将所述第一随机接入序列映射在第一时频资源上发送给所述网络设备,所述第一时频资源包括:1个允许发送所述第一随机接入序列的时域资源和1个允许发送所述第一随机接入序列的频域资源。In a possible design, the sending module is specifically configured to map the first random access sequence on a first time-frequency resource and send it to the network device, where the first time-frequency resource includes: 1 There are two time domain resources allowed to send the first random access sequence and one frequency domain resource allowed to send the first random access sequence.

在一种可能的设计中,所述J个随机接入序列为正交ZC序列或准正交ZC序列。In a possible design, the J random access sequences are orthogonal ZC sequences or quasi-orthogonal ZC sequences.

在一种可能的设计中,所述X等于所述J,每个所述第一随机接入序列为:所述第一随机接入序列集合中的一个随机接入序列。In a possible design, the X is equal to the J, and each of the first random access sequences is: a random access sequence in the first random access sequence set.

在一种可能的设计中,所述发送模块,具体用于将所述X个第一随机接入序列映射在第二时频资源上发送给所述网络设备,所述第二时频资源包括:1个允许发送所述第一随机接入序列的时域资源和X个允许发送所述第一随机接入序列的频域资源。In a possible design, the sending module is specifically configured to map the X first random access sequences on second time-frequency resources and send them to the network device, where the second time-frequency resources include : 1 time domain resource allowed to send the first random access sequence and X frequency domain resources allowed to send the first random access sequence.

在一种可能的设计中,所述第一随机接入序列集合包括M个随机接入序列子集,每个所述随机接入序列子集包括Y个随机接入序列,所述M和所述Y均为正整数;In a possible design, the first random access sequence set includes M random access sequence subsets, each random access sequence subset includes Y random access sequences, and the M and all random access sequence subsets include Y random access sequences. The above Y is a positive integer;

每个所述第一随机接入序列为根据一个随机接入序列子集得到的随机接入序列。Each of the first random access sequences is a random access sequence obtained according to a random access sequence subset.

在一种可能的设计中,所述X等于所述M,每个所述第一随机接入序列为:一个随机接入序列子集中的Y个随机接入序列相加生成的随机接入序列。In a possible design, the X is equal to the M, and each of the first random access sequences is: a random access sequence generated by adding Y random access sequences in a random access sequence subset .

在一种可能的设计中,所述发送模块,具体用于将所述X个第一随机接入序列映射在第三时频资源上发送给所述网络设备,所述第三时频资源包括:M个允许发送所述第一随机接入序列的时域资源和1个允许发送所述第一随机接入序列的频域资源;或者,所述第三时频资源包括:1个允许发送所述第一随机接入序列的时域资源和M个允许发送所述第一随机接入序列的频域资源。In a possible design, the sending module is specifically configured to map the X first random access sequences on a third time-frequency resource and send it to the network device, where the third time-frequency resource includes : M time domain resources allowed to send the first random access sequence and 1 frequency domain resource allowed to send the first random access sequence; or, the third time-frequency resource includes: 1 allowed to send The time domain resources of the first random access sequence and M frequency domain resources allowed to transmit the first random access sequence.

在一种可能的设计中,所述Y个随机接入序列为正交ZC序列或准正交ZC序列。In a possible design, the Y random access sequences are orthogonal ZC sequences or quasi-orthogonal ZC sequences.

在一种可能的设计中,所述X等于所述M与所述Y的乘积,每个所述第一随机接入序列为:一个随机接入序列子集中的一个随机接入序列。In a possible design, the X is equal to the product of the M and the Y, and each of the first random access sequences is: a random access sequence in a random access sequence subset.

在一种可能的设计中,所述发送模块,具体用于将所述X个第一随机接入序列映射在第四时频资源上发送给所述网络设备,所述第四时频资源包括:M个允许发送所述第一随机接入序列的时域资源和Y个允许发送所述第一随机接入序列的频域资源。In a possible design, the sending module is specifically configured to map the X first random access sequences on fourth time-frequency resources and send them to the network device, where the fourth time-frequency resources include : M time domain resources allowed to send the first random access sequence and Y frequency domain resources allowed to send the first random access sequence.

在一种可能的设计中,所述第一随机接入序列集合包括M个随机接入序列子集,每个所述随机接入序列子集包括K个随机接入序列组,每个所述随机接入序列组包括Q个随机接入序列,其中,所述M,所述K和所述Q均为正整数;In a possible design, the first random access sequence set includes M random access sequence subsets, each random access sequence subset includes K random access sequence groups, and each of the random access sequence subsets includes K random access sequence groups. The random access sequence group includes Q random access sequences, wherein the M, the K and the Q are all positive integers;

每个所述第一随机接入序列为根据一个随机接入序列组得到的随机接入序列。Each of the first random access sequences is a random access sequence obtained according to a random access sequence group.

在一种可能的设计中,所述X为所述M与所述K的乘积,每个所述第一随机接入序列为:一个随机接入序列组中的Q个随机接入序列相加生成的随机接入序列。In a possible design, the X is the product of the M and the K, and each of the first random access sequences is: adding Q random access sequences in a random access sequence group Generated random access sequence.

在一种可能的设计中,所述发送模块,具体用于将所述X个第一随机接入序列映射在第五时频资源上发送给所述网络设备,所述第五时频资源包括:M个允许发送所述第一随机接入序列的时域资源和K个允许发送所述第一随机接入序列的频域资源。In a possible design, the sending module is specifically configured to map the X first random access sequences on fifth time-frequency resources and send them to the network device, where the fifth time-frequency resources include : M time domain resources allowed to send the first random access sequence and K frequency domain resources allowed to send the first random access sequence.

在一种可能的设计中,所述Q个随机接入序列为正交ZC序列或准正交ZC序列。In a possible design, the Q random access sequences are orthogonal ZC sequences or quasi-orthogonal ZC sequences.

上述第三方面和第三方面的各可能的设计所提供的终端设备,其有益效果可以参见上述第一方面和第一方面的各可能的设计所带来的有益效果,在此不加赘述。The beneficial effects of the terminal equipment provided by the above-mentioned third aspect and each possible design of the third aspect can refer to the beneficial effects brought by the above-mentioned first aspect and each of the possible designs of the first aspect, which will not be repeated here.

第四方面,本申请实施例提供一种网络设备,该网络设备包括:In a fourth aspect, an embodiment of the present application provides a network device, where the network device includes:

发送模块,用于广播随机接入序列集合组配置信息,所述随机接入序列集合组包括L个随机接入序列集合,每个所述随机接入序列集合包括J个随机接入序列,所述L和所述J均为正整数、且所述J大于等于2;A sending module, configured to broadcast random access sequence set group configuration information, the random access sequence set group includes L random access sequence sets, each of the random access sequence sets includes J random access sequences, so The L and the J are both positive integers, and the J is greater than or equal to 2;

接收模块,用于接收终端设备发送的X个第一随机接入序列;a receiving module, configured to receive X first random access sequences sent by the terminal device;

处理模块,用于检测所述X个第一随机接入序列,并确定所述X个第一随机接入序列对应的随机接入标识,所述X为正整数。A processing module, configured to detect the X first random access sequences, and determine random access identifiers corresponding to the X first random access sequences, where X is a positive integer.

在一种可能的设计中,每个所述第一随机接入序列为根据所述第一随机接入序列集合得到的随机接入序列。In a possible design, each of the first random access sequences is a random access sequence obtained according to the first set of random access sequences.

在一种可能的设计中,所述X等于1,所述第一随机接入序列为:所述第一随机接入序列集合中的J个随机接入序列相加生成的随机接入序列。In a possible design, the X is equal to 1, and the first random access sequence is: a random access sequence generated by adding J random access sequences in the first set of random access sequences.

在一种可能的设计中,所述处理模块,具体用于在第一时频资源上检测所述X个第一随机接入序列,所述第一时频资源包括:1个允许发送所述第一随机接入序列的时域资源和1个允许发送所述第一随机接入序列的频域资源。In a possible design, the processing module is specifically configured to detect the X first random access sequences on a first time-frequency resource, where the first time-frequency resource includes: The time domain resource of the first random access sequence and one frequency domain resource allowed to send the first random access sequence.

在一种可能的设计中,所述处理模块,具体用于根据所述接收模块在所述第一时频资源上接收到的所述X个第一随机接入序列,从所述随机接入序列集合组中筛选出至少一个第二随机接入序列集合,并根据所述至少一个第二随机接入序列集合,确定所述X个第一随机序列对应的随机接入序列集合。In a possible design, the processing module is specifically configured to, according to the X first random access sequences received by the receiving module on the first time-frequency At least one second random access sequence set is screened out from the sequence set group, and according to the at least one second random access sequence set, the random access sequence set corresponding to the X first random sequences is determined.

在一种可能的设计中,所述处理模块,具体用于对每个所述第二随机接入序列集合中的J个随机接入序列进行合并,将接收功率最大且大于预设门限值的第二随机接入序列集合作为所述X个第一随机序列对应的随机接入序列集合。In a possible design, the processing module is specifically configured to combine the J random access sequences in each of the second random access sequence sets, and make the received power maximum and greater than a preset threshold value The second random access sequence set is taken as the random access sequence set corresponding to the X first random sequences.

在一种可能的设计中,所述J个随机接入序列为正交ZC序列或准正交ZC序列。In a possible design, the J random access sequences are orthogonal ZC sequences or quasi-orthogonal ZC sequences.

在一种可能的设计中,所述X等于所述J,每个所述第一随机接入序列为:所述第一随机接入序列集合中的一个随机接入序列。In a possible design, the X is equal to the J, and each of the first random access sequences is: a random access sequence in the first random access sequence set.

在一种可能的设计中,所述处理模块,具体用于在第二时频资源上检测所述X个第一随机接入序列,所述第二时频资源包括:1个允许发送所述第一随机接入序列的时域资源和X个允许发送所述第一随机接入序列的频域资源。In a possible design, the processing module is specifically configured to detect the X first random access sequences on a second time-frequency resource, where the second time-frequency resource includes: Time domain resources of the first random access sequence and X frequency domain resources allowed to transmit the first random access sequence.

在一种可能的设计中,所述处理模块,具体用于根据所述接收模块在所述X个所述频域资源上接收到的所述X个第一随机接入序列,从所述随机接入序列集合组中筛选出至少一个第三随机接入序列集合,并根据所述至少一个第三随机接入序列集合,确定所述X个第一随机序列对应的随机接入序列集合。In a possible design, the processing module is specifically configured to, according to the X first random access sequences received by the receiving module on the X frequency domain resources, extract the random access sequence from the random access sequence from the random access sequence. At least one third random access sequence set is screened out from the access sequence set group, and a random access sequence set corresponding to the X first random sequences is determined according to the at least one third random access sequence set.

在一种可能的设计中,所述处理模块,具体用于对每个所述第三随机接入序列集合中的J个随机接入序列进行合并,将接收功率最大且大于预设门限值的第三随机接入序列集合作为所述第一随机序列对应的随机接入序列集合。In a possible design, the processing module is specifically configured to combine the J random access sequences in each of the third random access sequence set, and the received power is the largest and greater than a preset threshold value. The third random access sequence set is taken as the random access sequence set corresponding to the first random sequence.

在一种可能的设计中,所述第一随机接入序列集合包括M个随机接入序列子集,每个所述随机接入序列子集包括Y个随机接入序列,所述M和所述Y均为正整数;In a possible design, the first random access sequence set includes M random access sequence subsets, each random access sequence subset includes Y random access sequences, and the M and all random access sequence subsets include M random access sequence subsets. The above Y is a positive integer;

每个所述第一随机接入序列为根据一个随机接入序列子集得到的随机接入序列。Each of the first random access sequences is a random access sequence obtained according to a random access sequence subset.

在一种可能的设计中,所述X等于所述M,每个所述第一随机接入序列为:一个随机接入序列子集中的Y个随机接入序列相加生成的随机接入序列。In a possible design, the X is equal to the M, and each of the first random access sequences is: a random access sequence generated by adding Y random access sequences in a random access sequence subset .

在一种可能的设计中,所述处理模块,具体用于在第三时频资源上检测所述X个第一随机接入序列,所述第三时频资源包括:M个允许发送所述第一随机接入序列的时域资源和1个允许发送所述第一随机接入序列的频域资源;或者,所述第三时频资源包括:1个允许发送所述第一随机接入序列的时域资源和M个允许发送所述第一随机接入序列的频域资源。In a possible design, the processing module is specifically configured to detect the X first random access sequences on a third time-frequency resource, where the third time-frequency resource includes: M allowed to send the the time domain resource of the first random access sequence and one frequency domain resource allowed to send the first random access sequence; or, the third time-frequency resource includes: one allowed to send the first random access sequence time domain resources of the sequence and M frequency domain resources that are allowed to transmit the first random access sequence.

在一种可能的设计中,在所述第三时频资源包括M个允许发送所述第一随机接入序列的时域资源和1个允许发送所述第一随机接入序列的频域资源时,所述处理模块,具体用于根据所述接收模块在X个所述时域资源上接收到的所述X个第一随机接入序列,从所述随机接入序列集合组中筛选出至少X个第一随机接入序列子集;在每个所述时域资源上根据至少一个所述第一随机接入序列子集确定至少一个第二随机接入序列子集;根据在所述X个时域资源上确定的至少X个第二随机接入序列子集,确定所述X个第一随机序列对应的随机接入序列集合。In a possible design, the third time-frequency resource includes M time-domain resources allowed to send the first random access sequence and 1 frequency-domain resource allowed to send the first random access sequence , the processing module is specifically configured to filter out the random access sequence set group from the random access sequence set group according to the X first random access sequences received by the receiving module on the X time domain resources at least X first random access sequence subsets; determining at least one second random access sequence subset according to at least one of the first random access sequence subsets on each of the time domain resources; The at least X second random access sequence subsets determined on the X time domain resources determine the random access sequence set corresponding to the X first random sequences.

在一种可能的设计中,所述处理模块,具体用于在每个所述时域资源上对每个所述第一随机接入序列子集中的Y个随机接入序列进行合并,将接收功率最大且大于预设门限值的第一随机接入序列子集作为第二随机接入序列子集。In a possible design, the processing module is specifically configured to combine Y random access sequences in each of the first random access sequence subsets on each of the time domain resources, and receive the The first random access sequence subset with the maximum power and greater than the preset threshold value is used as the second random access sequence subset.

在一种可能的设计中,所述处理模块,具体用于根据所述X个时域资源,对所述至少X个第二随机接入序列子集进行合并,将接收功率最大且大于预设门限值的随机接入序列集合作为所述X个第一随机序列对应的随机接入序列集合。In a possible design, the processing module is specifically configured to combine the at least X second random access sequence subsets according to the X time-domain resources, and combine the received power with a maximum value greater than a preset value. The random access sequence set of the threshold value is used as the random access sequence set corresponding to the X first random sequences.

在一种可能的设计中,所述Y个随机接入序列为正交ZC序列或准正交ZC序列。In a possible design, the Y random access sequences are orthogonal ZC sequences or quasi-orthogonal ZC sequences.

在一种可能的设计中,所述处理模块,具体用于将所述X个第一随机接入序列对应的随机接入序列集合的随机接入标识,作为所述X个第一随机接入序列对应的随机接入标识。In a possible design, the processing module is specifically configured to use the random access identifiers of the random access sequence sets corresponding to the X first random access sequences as the X first random access sequences The random access identifier corresponding to the sequence.

在一种可能的设计中,所述X等于所述M与所述Y的乘积,每个所述第一随机接入序列为:一个随机接入序列子集中的一个随机接入序列。In a possible design, the X is equal to the product of the M and the Y, and each of the first random access sequences is: a random access sequence in a random access sequence subset.

在一种可能的设计中,所述处理模块,具体用于在第四时频资源上检测所述X个第一随机接入序列,所述第四时频资源包括:M个允许发送所述第一随机接入序列的时域资源和Y个允许发送所述第一随机接入序列的频域资源。In a possible design, the processing module is specifically configured to detect the X first random access sequences on a fourth time-frequency resource, where the fourth time-frequency resource includes: M allowed to send the The time domain resources of the first random access sequence and the Y frequency domain resources allowed to transmit the first random access sequence.

在一种可能的设计中,所述第一随机接入序列集合包括M个随机接入序列子集,每个所述随机接入序列子集包括K个随机接入序列组,每个所述随机接入序列组包括Q个随机接入序列,其中,所述M,所述K和所述Q均为正整数;In a possible design, the first random access sequence set includes M random access sequence subsets, each random access sequence subset includes K random access sequence groups, and each of the random access sequence subsets includes K random access sequence groups. The random access sequence group includes Q random access sequences, wherein the M, the K and the Q are all positive integers;

每个所述第一随机接入序列为根据一个随机接入序列组得到的随机接入序列。Each of the first random access sequences is a random access sequence obtained according to a random access sequence group.

在一种可能的设计中,所述X为所述M与所述K的乘积,每个所述第一随机接入序列为:一个随机接入序列组中的Q个随机接入序列相加生成的随机接入序列。In a possible design, the X is the product of the M and the K, and each of the first random access sequences is: adding Q random access sequences in a random access sequence group Generated random access sequence.

在一种可能的设计中,所述处理模块,具体用于在第五时频资源上检测所述X个第一随机接入序列,所述第五时频资源包括:M个允许发送所述第一随机接入序列的时域资源和K个允许发送所述第一随机接入序列的频域资源。In a possible design, the processing module is specifically configured to detect the X first random access sequences on a fifth time-frequency resource, where the fifth time-frequency resource includes: M allowed to send the The time domain resources of the first random access sequence and K frequency domain resources allowed to transmit the first random access sequence.

在一种可能的设计中,所述Q个随机接入序列为正交ZC序列或准正交ZC序列。In a possible design, the Q random access sequences are orthogonal ZC sequences or quasi-orthogonal ZC sequences.

上述第四方面和第四方面的各可能的设计所提供的网络设备,其有益效果可以参见上述第一方面和第一方面的各可能的设计所带来的有益效果,在此不加赘述。For the beneficial effects of the network device provided by the fourth aspect and the possible designs of the fourth aspect, reference may be made to the beneficial effects brought by the first aspect and the possible designs of the first aspect, which will not be repeated here.

第五方面,本申请实施例提供一种终端设备,该终端设备包括:处理器、存储器、发送器;所述发送器耦合至所述处理器,所述处理器控制所述发送器的发送动作;In a fifth aspect, an embodiment of the present application provides a terminal device, where the terminal device includes: a processor, a memory, and a transmitter; the transmitter is coupled to the processor, and the processor controls a sending action of the transmitter ;

其中,所述存储器用于存储计算机可执行程序代码,所述程序代码包括指令;当所述处理器执行所述指令时,所述指令使所述终端设备执行如第一方面或第一方面的各可能的设计所提供的随机接入方法。Wherein, the memory is used to store computer-executable program codes, and the program codes include instructions; when the processor executes the instructions, the instructions cause the terminal device to execute the first aspect or the first aspect. The random access method provided by each possible design.

第六方面,本申请实施例提供一种网络设备,该网络设备包括:处理器、存储器、接收器、发送器;所述接收器耦合至所述处理器,所述处理器控制所述发送器的发送动作,所述处理器控制所述接收器的接收动作;In a sixth aspect, an embodiment of the present application provides a network device, the network device includes: a processor, a memory, a receiver, and a transmitter; the receiver is coupled to the processor, and the processor controls the transmitter The sending action of the processor controls the receiving action of the receiver;

其中,所述存储器用于存储计算机可执行程序代码,所述程序代码包括指令;当所述处理器执行所述指令时,所述指令使所述网络设备执行如第二方面或第二方面的各可能的设计所提供的随机接入方法。Wherein, the memory is used to store computer-executable program codes, and the program codes include instructions; when the processor executes the instructions, the instructions cause the network device to execute the second aspect or the second aspect. The random access method provided by each possible design.

第七方面,本申请实施例提供一种通信装置,包括用于执行以上第一方面或第一方面各可能的设计所提供的方法的单元、模块或电路。该通信装置可以为终端设备,也可以为应用于终端设备的一个模块,例如,可以为应用于终端设备的芯片。In a seventh aspect, an embodiment of the present application provides a communication device, including a unit, a module, or a circuit for executing the method provided by the above first aspect or each possible design of the first aspect. The communication apparatus may be a terminal device, or may be a module applied to the terminal device, for example, may be a chip applied to the terminal device.

第八方面,本申请实施例提供一种通信装置,包括用于执行以上第二方面或第二方面各可能的设计所提供的方法的单元、模块或电路。该通信装置可以为网络设备,也可以为应用于网络设备的一个模块,例如,可以为应用于网络设备的芯片。In an eighth aspect, an embodiment of the present application provides a communication device, including a unit, a module, or a circuit for executing the method provided by the second aspect or each possible design of the second aspect. The communication device may be a network device, or may be a module applied to the network device, for example, may be a chip applied to the network device.

第九方面,本申请实施例提供一种包含指令的计算机程序产品,当其在计算机上运行时,使得计算机执行上述第一方面或第一方面的各种可能的设计中的方法。In a ninth aspect, the embodiments of the present application provide a computer program product containing instructions, which, when executed on a computer, cause the computer to execute the method in the first aspect or various possible designs of the first aspect.

第十方面,本申请实施例提供一种包含指令的计算机程序产品,当其在计算机上运行时,使得计算机执行上述第二方面或第二方面的各种可能的设计中的方法。In a tenth aspect, the embodiments of the present application provide a computer program product containing instructions, which, when executed on a computer, cause the computer to execute the method in the second aspect or various possible designs of the second aspect.

第十一方面,本申请实施例提供一种计算机可读存储介质,所述计算机可读存储介质中存储有指令,当其在计算机上运行时,使得计算机执行上述第一方面或第一方面的各种可能的设计中的方法。In an eleventh aspect, an embodiment of the present application provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, when the computer-readable storage medium runs on a computer, the computer is made to execute the first aspect or the first aspect. methods in various possible designs.

第十二方面,本申请实施例提供一种计算机可读存储介质,所述计算机可读存储介质中存储有指令,当其在计算机上运行时,使得计算机执行上述第二方面或第二方面的各种可能的设计中的方法。In a twelfth aspect, an embodiment of the present application provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the computer-readable storage medium runs on a computer, the computer is made to execute the second aspect or the second aspect. methods in various possible designs.

本申请实施例提供的随机接入方法、终端设备和网络设备,通过将一个preambleID对应一个preamble序列集合中的J个preamble序列的方式,可以使终端设备依据第一preamble ID对应的第一preamble序列集合得到X个第一preamble序列灵活多样。因此,当终端设备采用上述方式生成请求接入待接入小区的preamble序列时,可以降低多个终端设备同时使用相同的preamble序列请求接入小区的概率(即降低随机接入碰撞概率),从而可以提高小区的RACH容量。The random access method, terminal device, and network device provided by the embodiments of the present application can make the terminal device based on the first preamble sequence corresponding to the first preamble ID by corresponding one preamble ID to J preamble sequences in a preamble sequence set. The collection obtains X first preamble sequences which are flexible and diverse. Therefore, when a terminal device uses the above method to generate a preamble sequence for requesting access to a cell to be accessed, the probability that multiple terminal devices use the same preamble sequence to request access to a cell at the same time can be reduced (that is, the probability of random access collision is reduced), thereby reducing the probability of a random access collision. The RACH capacity of the cell can be improved.

附图说明Description of drawings

图1为本申请实施例应用的移动通信系统的架构示意图;FIG. 1 is a schematic structural diagram of a mobile communication system to which an embodiment of the application is applied;

图2为本申请实施例提供的一种随机接入方法的流程示意图;FIG. 2 is a schematic flowchart of a random access method provided by an embodiment of the present application;

图3A为本申请实施例提供的一种终端设备的发射机结构示意图;FIG. 3A is a schematic structural diagram of a transmitter of a terminal device according to an embodiment of the present application;

图3B为本申请实施例提供的另一种随机接入方法的流程示意图;FIG. 3B is a schematic flowchart of another random access method provided by an embodiment of the present application;

图3C为本申请实施例提供的另一种终端设备的发射机结构示意图;FIG. 3C is a schematic structural diagram of a transmitter of another terminal device provided by an embodiment of the present application;

图3D为本申请实施例提供的又一种随机接入方法的流程示意图;FIG. 3D is a schematic flowchart of another random access method provided by an embodiment of the present application;

图4A为本申请实施例提供的又一种随机接入方法的流程示意图;4A is a schematic flowchart of another random access method provided by an embodiment of the present application;

图4B为本申请实施例提供的又一种终端设备的发射机结构示意图;FIG. 4B is a schematic structural diagram of a transmitter of another terminal device provided by an embodiment of the present application;

图5为本申请实施例提供的一种终端设备的结构示意图;FIG. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

图6为本申请实施例提供的一种网络设备的结构示意图;FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present application;

图7为本申请提供的另一种终端设备的结构示意图;7 is a schematic structural diagram of another terminal device provided by the present application;

图8为本申请实施例提供的另一种网络设备的结构示意图。FIG. 8 is a schematic structural diagram of another network device according to an embodiment of the present application.

具体实施方式Detailed ways

图1为本申请实施例应用的移动通信系统的架构示意图。如图1所示,该移动通信系统可以包括核心网设备110、无线接入网设备120和至少一个终端设备(如图1中的终端设备130和终端设备140)。终端设备通过无线的方式与无线接入网设备120相连,无线接入网设备120通过无线或有线方式与核心网设备110连接。核心网设备110与无线接入网设备120可以是独立的不同的物理设备,也可以是将核心网设备110的功能与无线接入网设备120的逻辑功能集成在同一个物理设备上,还可以是一个物理设备上集成了部分核心网设备110的功能和部分的无线接入网设备120的功能。终端设备可以是固定位置的,也可以是可移动的。图1只是示意图,该移动通信系统中还可以包括其它网络设备,例如还可以包括无线中继设备和无线回传设备等,在图1中未画出。本申请实施例对该移动通信系统中包括的核心网设备110、无线接入网设备120和终端设备的数量不做限定。FIG. 1 is a schematic structural diagram of a mobile communication system to which an embodiment of the present application is applied. As shown in FIG. 1 , the mobile communication system may include a core network device 110 , a radio access network device 120 and at least one terminal device (such as the terminal device 130 and the terminal device 140 in FIG. 1 ). The terminal device is connected to the wireless access network device 120 in a wireless manner, and the wireless access network device 120 is connected to the core network device 110 in a wireless or wired manner. The core network device 110 and the radio access network device 120 may be independent and different physical devices, or the functions of the core network device 110 and the logical functions of the radio access network device 120 may be integrated on the same physical device, or It is a physical device that integrates part of the functions of the core network device 110 and part of the functions of the radio access network device 120 . Terminal equipment can be fixed or movable. FIG. 1 is only a schematic diagram, and the mobile communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, etc., which are not shown in FIG. 1 . The embodiments of the present application do not limit the number of core network devices 110, wireless access network devices 120, and terminal devices included in the mobile communication system.

无线接入网设备120是终端设备通过无线方式接入到该移动通信系统中的接入设备,可以是基站NodeB、演进型基站eNodeB、5G移动通信系统或新一代无线(new radio,NR)通信系统中的基站、未来移动通信系统中的基站、WiFi系统中的接入节点等,本申请实施例对无线接入网设备120所采用的具体技术和具体设备形态不做限定。在本申请实施例中,无线接入网设备120简称网络设备,如果无特殊说明,在本申请实施例中,网络设备均指无线接入网设备120。另外,在本申请实施例中,术语5G和NR可以等同。The radio access network device 120 is an access device through which the terminal device wirelessly accesses the mobile communication system, which may be a base station NodeB, an evolved base station eNodeB, a 5G mobile communication system or a new generation wireless (new radio, NR) communication The base station in the system, the base station in the future mobile communication system, the access node in the WiFi system, etc., the embodiments of the present application do not limit the specific technology and specific device form adopted by the wireless access network device 120 . In the embodiment of the present application, the wireless access network device 120 is referred to as the network device for short. Unless otherwise specified, in the embodiment of the present application, the network device refers to the wireless access network device 120 . In addition, in the embodiments of this application, the terms 5G and NR may be equivalent.

终端设备也可以称为终端Terminal、用户设备(user equipment,UE)、移动台(mobile station,MS)、移动终端(mobile terminal,MT)等。终端设备可以是手机(mobilephone)、平板电脑(pad)、带无线收发功能的电脑、虚拟现实(virtual reality,VR)终端设备、增强现实(augmented reality,AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。The terminal equipment may also be referred to as a terminal terminal, user equipment (user equipment, UE), a mobile station (mobile station, MS), a mobile terminal (mobile terminal, MT), and the like. The terminal device can be a mobile phone (mobilephone), a tablet computer (pad), a computer with a wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, an industrial control (industrial control) wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grid, wireless terminals in transportation safety , wireless terminals in smart cities, wireless terminals in smart homes, and the like.

无线接入网设备120和终端设备可以部署在陆地上,包括室内或室外、手持或车载;也可以部署在水面上;还可以部署在空中的飞机、气球和人造卫星上。本申请实施例对无线接入网设备120和终端设备的应用场景不做限定。The radio access network device 120 and the terminal device can be deployed on land, including indoor or outdoor, handheld or vehicle; can also be deployed on water; and can also be deployed on aircraft, balloons and artificial satellites in the air. This embodiment of the present application does not limit the application scenarios of the wireless access network device 120 and the terminal device.

无线接入网设备120和终端设备之间可以通过授权频谱(licensed spectrum)进行通信,也可以通过免授权频谱(unlicensed spectrum)进行通信,也可以同时通过授权频谱和免授权频谱进行通信。无线接入网设备120和终端设备之间可以通过6吉兆赫(gigahertz,GHz)以下的频谱进行通信,也可以通过6GHz以上的频谱进行通信,还可以同时使用6GHz以下的频谱和6GHz以上的频谱进行通信。本申请实施例对无线接入网设备120和终端设备之间所使用的频谱资源不做限定。The radio access network device 120 and the terminal device may communicate through licensed spectrum (licensed spectrum), communicate through unlicensed spectrum (unlicensed spectrum), or communicate through licensed spectrum and unlicensed spectrum at the same time. The radio access network device 120 and the terminal device can communicate through a frequency spectrum below 6 gigahertz (gigahertz, GHz), or can communicate through a frequency spectrum above 6 GHz, and can also use a frequency spectrum below 6 GHz and a frequency spectrum above 6 GHz at the same time to communicate. This embodiment of the present application does not limit the spectrum resources used between the radio access network device 120 and the terminal device.

随机接入流程是终端设备接入小区的流程,目的是与小区所属的网络设备建立上行同步关系,以及,请求小区所属的网络设备为终端设备分配用户ID以及传输资源,以进行数据传输。相比于长期演进(long term evolution,LTE)通信系统下的随机接入场景,5G通信系统的随机接入场景要求服务小区的用户数可以达到LTE通信系统下的服务小区的用户数的10-100倍,要求随机接入信道(random access channel,RACH)可以支持更多的功能(例如可以指示上下行波束等),要求RACH的频谱效率在低于6GHz场景下RACH频谱效率可以提高4倍,在高于6GHz场景下RACH频谱效率可以提高64倍。The random access procedure is a procedure for a terminal device to access a cell. The purpose is to establish an uplink synchronization relationship with the network device to which the cell belongs, and to request the network device to which the cell belongs to allocate a user ID and transmission resources to the terminal device for data transmission. Compared with the random access scenario under the long term evolution (LTE) communication system, the random access scenario of the 5G communication system requires that the number of users in the serving cell can reach 10-10% of the number of users in the serving cell under the LTE communication system. 100 times, it is required that the random access channel (RACH) can support more functions (for example, it can indicate the uplink and downlink beams, etc.), and the spectral efficiency of RACH is required to be increased by 4 times in the scenario below 6GHz. RACH spectral efficiency can be improved by 64 times in scenarios above 6GHz.

现有的LTE通信系统中,网络设备可以通过对不同的ZC根序列进行循环移位,为每个小区生成一个上行随机接入所需的preamble集合。其中,每个小区的preamble集合可以包括64个ZC序列(ZC根序列循环移位生成的序列),每个ZC序列对应preamble ID集合中的一个preamble ID。In the existing LTE communication system, the network device can generate a preamble set required for uplink random access for each cell by cyclically shifting different ZC root sequences. The preamble set of each cell may include 64 ZC sequences (sequences generated by cyclic shift of the ZC root sequence), and each ZC sequence corresponds to a preamble ID in the preamble ID set.

当终端设备需要接入某一小区时,终端设备可以根据该小区所属的网络设备广播的preamble集合配置信息,生成网络设备为该小区配置的preamble集合及对应的premableID集合。其中,上述配置信息可以包括生成该preamble集合时所使用的ZC根序列,以及,循环移位取值等。When the terminal device needs to access a certain cell, the terminal device can generate the preamble set configured by the network device for the cell and the corresponding premableID set according to the preamble set configuration information broadcast by the network device to which the cell belongs. The above configuration information may include the ZC root sequence used when the preamble set is generated, and the value of the cyclic shift.

此时,若终端设备采用竞争随机接入的方式接入小区,则终端设备可以从preamble ID集合中随机选择一个preamble ID,并将preamble集合中与该preamble ID对应的ZC序列作为随机接入序列,发送给该小区所属的网络设备,以请求接入该小区。若终端设备采用非竞争随机接入的方式接入小区,则终端设备在生成网络设备为该小区配置的preamble集合之后,可以基于网络设备所指示的preamble ID,将preamble集合中与该preamble ID对应的ZC序列作为随机接入序列,发送给该小区所属的网络设备,以请求接入该小区。其中,网络设备如何指示preamble ID可以参见现有技术,对此不再赘述。需要说明的是,上述所说的随机接入序列可以简称为preamble序列。可以理解,随机接入序列在5G移动通信系统可能仍然沿用前述通信系统中preamble序列的术语。本申请实施例对随机接入序列在各个通信系统中的命名不作限定。本申请实施例以随机接入序列为preamble序列为例进行说明。At this time, if the terminal equipment accesses the cell in a competitive random access manner, the terminal equipment can randomly select a preamble ID from the preamble ID set, and use the ZC sequence corresponding to the preamble ID in the preamble set as the random access sequence , which is sent to the network device to which the cell belongs to request access to the cell. If the terminal device uses the non-contention random access method to access the cell, after generating the preamble set configured by the network device for the cell, the terminal device may, based on the preamble ID indicated by the network device, associate the preamble set with the preamble ID The ZC sequence of the cell is used as a random access sequence, and is sent to the network device to which the cell belongs to request access to the cell. Wherein, for how the network device indicates the preamble ID, reference may be made to the prior art, which will not be repeated here. It should be noted that the random access sequence mentioned above may be referred to as a preamble sequence for short. It can be understood that the random access sequence may still use the terminology of the preamble sequence in the aforementioned communication system in the 5G mobile communication system. This embodiment of the present application does not limit the naming of the random access sequence in each communication system. The embodiments of the present application are described by taking the random access sequence as the preamble sequence as an example.

5G通信系统的随机接入场景要求服务小区的用户数可以达到LTE通信系统下的服务小区的用户数的10-100倍。因此,当5G通信系统中的终端设备采用竞争随机接入的方式接入小区时,若仍然沿用LTE通信系统中生成preamble序列的方式,则易出现多个终端设备同时使用相同的preamble序列请求接入小区的情况(即随机接入发生碰撞),导致该多个终端设备接入小区失败。The random access scenario of the 5G communication system requires that the number of users in the serving cell can reach 10-100 times the number of users in the serving cell under the LTE communication system. Therefore, when the terminal equipment in the 5G communication system uses the competitive random access method to access the cell, if the method of generating the preamble sequence in the LTE communication system is still used, it is easy for multiple terminal equipment to use the same preamble sequence to request access at the same time. In the case of entering a cell (ie, random access collisions), the multiple terminal devices fail to access the cell.

考虑到上述问题,本申请实施例提供了一种随机接入方法,通过将一个preambleID对应多个preamble序列的方式,可以降低多个终端设备同时使用相同的preamble序列请求接入小区的概率(即降低随机接入碰撞概率),提高了小区的RACH容量。可以理解,本申请实施例提供的随机接入方法,包括但不限于5G通信系统下的随机接入场景(包括采用竞争随机接入的方式接入小区的随机接入场景、和采用非竞争随机接入的方式接入小区的随机接入场景)。Considering the above problems, the embodiment of the present application provides a random access method, which can reduce the probability that multiple terminal devices use the same preamble sequence to request access to a cell at the same time (that is, by mapping one preambleID to multiple preamble sequences). Reduce random access collision probability) and improve the RACH capacity of the cell. It can be understood that the random access methods provided in the embodiments of the present application include but are not limited to random access scenarios in the 5G communication system (including random access scenarios in which a competitive random access method is used to access a cell, and random access scenarios using a non-competitive random access method). The random access scenario of accessing the cell by means of access).

需要说明的是,本申请实施例的方法可以应用于网络设备,也可以应用于网络设备中的芯片,相应地,本申请实施例的方法可以应用于终端设备,也可以应用于终端设备中的芯片。下面以应用于网络设备和终端设备为例,通过一些实施例对本申请的技术方案进行详细说明。下面这几个实施例可以相互结合,对于相同或相似的概念或过程可能在某些实施例不再赘述。It should be noted that the methods in the embodiments of the present application can be applied to network devices, and can also be applied to chips in network devices. Correspondingly, the methods of the embodiments of the present application can be applied to terminal devices, and can also be applied to terminal devices. chip. The technical solutions of the present application will be described in detail below through some embodiments, taking application to network equipment and terminal equipment as an example. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

图2为本申请实施例提供的一种随机接入方法的流程示意图。本实施例涉及的是终端设备基于第一随机接入标识对应的第一preamble序列集合中的J个preamble序列,生成X个preamble序列发送给网络设备的具体过程。如图2所示,该方法可以包括:FIG. 2 is a schematic flowchart of a random access method provided by an embodiment of the present application. This embodiment relates to a specific process in which the terminal device generates X preamble sequences and sends them to the network device based on the J preamble sequences in the first preamble sequence set corresponding to the first random access identifier. As shown in Figure 2, the method may include:

S101、网络设备广播preamble序列集合组配置信息。S101. The network device broadcasts the preamble sequence set group configuration information.

在本申请实施例中,网络设备可以为每个小区生成一个preamble序列集合组。其中,一个preamble序列集合组可以包括L个preamble序列集合。每个preamble序列集合可以包括J个preamble序列。各preamble序列集合之间所包括的J个preamble序列至少有一个不同。这里所说的L和J均为正整数、且J大于等于2。preamble序列集合组中的每个preamble序列集合对应随机接入标识集合中的一个随机接入标识。也就是说,一个随机接入标识对应J个preamble序列。可以理解,上述所说的随机接入标识在5G移动通信系统可能仍然沿用前述通信系统中preamble ID的术语。本申请实施例对随机接入标识在各个通信系统中的命名不作限定。本申请实施例以随机接入标识为preamble ID为例进行说明。In this embodiment of the present application, the network device may generate a preamble sequence set group for each cell. Wherein, one preamble sequence set group may include L preamble sequence sets. Each set of preamble sequences may include J preamble sequences. At least one of the J preamble sequences included in each preamble sequence set is different. Both L and J mentioned here are positive integers, and J is greater than or equal to 2. Each preamble sequence set in the preamble sequence set group corresponds to a random access identifier in the random access identifier set. That is to say, one random access identifier corresponds to J preamble sequences. It can be understood that the above-mentioned random access identifier may still use the term of preamble ID in the aforementioned communication system in the 5G mobile communication system. This embodiment of the present application does not limit the naming of the random access identifier in each communication system. The embodiments of the present application are described by taking the random access identifier as the preamble ID as an example.

上述preamble序列集合组中的每个preamble序列集合与preamble ID集合中preamble ID的对应关系例如可以如表1所示:The correspondence between each preamble sequence set in the above-mentioned preamble sequence set group and the preamble ID in the preamble ID set can be, for example, as shown in Table 1:

表1Table 1

preamble ID集合preamble ID collection preamble序列集合组preamble sequence set preamble序列preamble sequence preamble ID 1preamble ID 1 preamble序列集合1preamble sequence set 1 J<sub>1</sub>个preamble序列J<sub>1</sub> preamble sequences preamble ID 2preamble ID 2 preamble序列集合2preamble sequence set 2 J<sub>2</sub>个preamble序列J<sub>2</sub> preamble sequences preamble ID 3preamble ID 3 preamble序列集合3preamble sequence set 3 J<sub>3</sub>个preamble序列J<sub>3</sub> preamble sequences preamble ID 4preamble ID 4 preamble序列集合4preamble sequence set 4 J<sub>4</sub>个preamble序列J<sub>4</sub> preamble sequences ……... ……... ……... preamble ID Lpreamble ID L preamble序列集合Lpreamble sequence set L J<sub>l</sub>个preamble序列J<sub>l</sub> preamble sequences

在本申请实施例中,网络设备可以沿用LTE通信系统中网络设备广播配置信息的方式,广播网络设备为每个小区配置的preamble序列集合组的配置信息。其中,preamble序列集合组配置信息可以包括小区的标识、生成该小区的preamble序列集合组时所使用的ZC根序列、循环移位取值、L的取值、J的取值等。这样,在终端设备需要接入网络设备下的某一小区(即待接入小区)时,终端设备可以根据网络设备广播的待接入小区的preamble序列集合组配置信息,生成网络设备为待接入小区配置的preamble序列集合组。In the embodiment of the present application, the network device can broadcast the configuration information of the preamble sequence set group configured by the network device for each cell in the manner in which the network device broadcasts the configuration information in the LTE communication system. The preamble sequence set group configuration information may include the identity of the cell, the ZC root sequence used when generating the preamble sequence set group of the cell, the value of cyclic shift, the value of L, the value of J, and the like. In this way, when the terminal device needs to access a certain cell under the network device (that is, the cell to be accessed), the terminal device can generate the network device as the cell to be accessed according to the preamble sequence set group configuration information of the cell to be accessed broadcast by the network device. Enter the preamble sequence set group configured by the cell.

S102、终端设备获取第一preamble ID。S102, the terminal device acquires the first preamble ID.

当终端设备采用竞争随机接入的方式接入待接入小区,终端设备可以从待接入小区的preamble ID集合中随机选择一个preamble ID作为第一preamble ID。若终端设备采用非竞争随机接入的方式接入待接入小区,则终端设备可以将网络设备所指示的preambleID作为第一preamble ID。其中,网络设备如何向终端设备指示preamble ID可以参见现有技术。When the terminal device accesses the cell to be accessed in a competitive random access manner, the terminal device may randomly select a preamble ID from the set of preamble IDs of the cell to be accessed as the first preamble ID. If the terminal device uses the non-contention random access mode to access the cell to be accessed, the terminal device may use the preambleID indicated by the network device as the first preamble ID. Wherein, how the network device indicates the preamble ID to the terminal device can refer to the prior art.

S103、终端设备在preamble序列集合组中选择第一preamble ID对应的第一preamble序列集合。S103: The terminal device selects a first preamble sequence set corresponding to the first preamble ID in the preamble sequence set group.

终端设备在获取到第一preamble ID之后,可以根据第一preamble ID,在待接入小区的preamble序列集合组中查找第一preamble ID对应的第一preamble序列集合,即第一preamble ID对应的J个preamble序列。After acquiring the first preamble ID, the terminal device can search for the first preamble sequence set corresponding to the first preamble ID in the preamble sequence set group of the cell to be accessed according to the first preamble ID, that is, the J corresponding to the first preamble ID. preamble sequence.

S104、终端设备向网络设备发送X个第一preamble序列。S104, the terminal device sends X first preamble sequences to the network device.

终端设备通过向网络设备发送该X个第一preamble序列,可以向网络设备请求接入待接入小区。其中,X为正整数。在本实施例中,通过将一个preamble ID对应一个preamble序列集合中的J个preamble序列的方式,可以使终端设备依据第一preamble ID对应的第一preamble序列集合得到X个第一preamble序列。例如,终端设备可以将第一preamble序列集合中的多个preamble序列相加生成一个第一preamble序列,或者,终端设备可以将第一preamble序列集合中的某一preamble序列作为一个第一preamble序列等。By sending the X first preamble sequences to the network device, the terminal device can request the network device to access the cell to be accessed. where X is a positive integer. In this embodiment, by corresponding one preamble ID to J preamble sequences in one preamble sequence set, the terminal device can obtain X first preamble sequences according to the first preamble sequence set corresponding to the first preamble ID. For example, the terminal device may add multiple preamble sequences in the first preamble sequence set to generate a first preamble sequence, or the terminal device may use a preamble sequence in the first preamble sequence set as a first preamble sequence, etc. .

由于各preamble序列集合之间所包括的J个preamble序列至少有一个不同,且终端设备生成X个第一preamble序列的方式灵活多样。因此,当终端设备采用上述方式生成请求接入待接入小区的preamble序列时,可以降低多个终端设备同时使用相同的preamble序列请求接入小区的概率(即降低随机接入碰撞概率),从而可以提高小区的RACH容量。Because at least one of the J preamble sequences included in each preamble sequence set is different, and the manner in which the terminal device generates the X first preamble sequences is flexible and diverse. Therefore, when a terminal device uses the above method to generate a preamble sequence for requesting access to a cell to be accessed, the probability that multiple terminal devices use the same preamble sequence to request access to a cell at the same time can be reduced (that is, the probability of random access collision is reduced), thereby reducing the probability of a random access collision. The RACH capacity of the cell can be improved.

S105、网络设备检测终端设备发送的X个第一preamble序列。S105, the network device detects the X first preamble sequences sent by the terminal device.

网络设备可以通过待接入的小区的preamble序列集合组,检测终端设备发送的X个第一preamble序列,以识别X个第一preamble序列对应的preamble序列集合。可选的,网络设备还可以通过终端设备发送的X个第一preamble序列,确定终端设备的上行提前量(timing advance,TA)。通过每个终端设备的TA,网络设备可以控制使用相同时域资源的终端设备所发送的上行信号到达网络设备侧的时间基本对齐,从而可以确保上行同步。The network device may detect the X first preamble sequences sent by the terminal device through the preamble sequence set group of the cell to be accessed, so as to identify the preamble sequence set corresponding to the X first preamble sequences. Optionally, the network device may also determine an uplink advance (timing advance, TA) of the terminal device by using the X first preamble sequences sent by the terminal device. Through the TA of each terminal device, the network device can control that the uplink signals sent by the terminal devices using the same time domain resources are basically aligned to arrive at the network device side, thereby ensuring uplink synchronization.

S106、网络设备确定X个第一preamble序列对应的preamble ID。S106, the network device determines the preamble IDs corresponding to the X first preamble sequences.

网络设备可以在识别出X个第一preamble序列对应的preamble序列集合后,将该preamble序列集合对应的preamble ID作为X个第一preamble序列对应的preamble ID。网络设备确定了X个第一preamble序列对应的preamble ID和终端设备的TA后,可以将该preamble ID和对应的TA携带在随机接入响应(Random Access Response,RAR)中发送给终端设备。相应地,终端设备在基于RAR中携带的preamble ID,确定该preamble ID为终端设备生成X个第一preamble序列时所使用的第一preamble ID时,可以基于RAR中该preambleID对应的TA,完成后续的随机接入流程,具体可以参见现有技术,对此不再赘述。After identifying the preamble sequence sets corresponding to the X first preamble sequences, the network device may use the preamble IDs corresponding to the preamble sequence sets as the preamble IDs corresponding to the X first preamble sequences. After the network device determines the preamble IDs corresponding to the X first preamble sequences and the TA of the terminal device, the preamble ID and the corresponding TA can be carried in a random access response (Random Access Response, RAR) and sent to the terminal device. Correspondingly, when the terminal device determines that the preamble ID is the first preamble ID used when the terminal device generates X first preamble sequences based on the preamble ID carried in the RAR, the terminal device can complete the follow-up based on the TA corresponding to the preamble ID in the RAR. For the random access procedure of the device, reference may be made to the prior art for details, which will not be repeated here.

下面结合preamble序列集合组中的preamble序列集合的具体结构,对终端设备根据第一preamble序列集合,得到X个第一preamble序列的过程,以及,网络设备检测X个第一preamble序列的过程进行介绍和说明,具体可以包括如下几种结构:Combining with the specific structure of the preamble sequence set in the preamble sequence set group, the process of obtaining X first preamble sequences by the terminal device according to the first preamble sequence set, and the process of the network device detecting X first preamble sequences will be introduced. and description, which can include the following structures:

第一种结构:preamble序列集合组中的每个preamble序列集合包括J个preamble序列,各preamble序列集合之间所包括的J个preamble序列至少有一个不同。The first structure: each preamble sequence set in the preamble sequence set group includes J preamble sequences, and at least one of the J preamble sequences included in each preamble sequence set is different.

其中,每个preamble序列集合所包括的J个preamble序列中的每个preamble序列为一个ZC序列。即,每个preamble序列集合包括J个ZC序列。该J个ZC序列可以是相同的ZC序列,也可以是有至少一个不同的ZC序列,还可以是全部不同的ZC序列。当preamble序列集合包括不同的ZC序列时,这些不同的ZC序列可以是由同一个ZC根序列生成的序列。即,从单个ZC根序列产生的循环移位序列集合中随机选择的不同ZC序列。在该实现方式下,这些不同的ZC序列中的任意两个ZC序列均为正交序列。或者,这些不同的ZC序列可以是由多个ZC根序列生成的序列。即,从多个ZC根序列产生的循环移位序列集合中随机选择的不同ZC序列。在该实现方式下,这些不同的ZC序列中的任意两个preamble序列均为准正交序列。Wherein, each preamble sequence in the J preamble sequences included in each preamble sequence set is a ZC sequence. That is, each preamble sequence set includes J ZC sequences. The J ZC sequences may be the same ZC sequence, at least one different ZC sequence, or all different ZC sequences. When the preamble sequence set includes different ZC sequences, these different ZC sequences may be sequences generated by the same ZC root sequence. That is, different ZC sequences randomly selected from the set of cyclically shifted sequences generated from a single ZC root sequence. In this implementation manner, any two ZC sequences in these different ZC sequences are orthogonal sequences. Alternatively, these different ZC sequences can be sequences generated from multiple ZC root sequences. That is, different ZC sequences randomly selected from a set of cyclically shifted sequences generated from multiple ZC root sequences. In this implementation manner, any two preamble sequences in these different ZC sequences are quasi-orthogonal sequences.

在该结构下,上述终端设备生成第一随机接入序列的方式包括如下两种实现方式:Under this structure, the manner in which the terminal device generates the first random access sequence includes the following two implementation manners:

第一种方式:图3A为本申请实施例提供的一种终端设备的发射机结构示意图。如图3A所示,在上述preamble序列集合组包括上述所示的结构的preamble序列集合、且每个preamble序列集合包括J个preamble序列有至少一个不同的preamble序列时,上述终端设备可以通过将第一preamble ID对应的第一preamble序列集合中的J个preamble序列相加的方式,生成一个第一preamble序列。即上述X个第一随机接入序列中的X等于1。The first way: FIG. 3A is a schematic structural diagram of a transmitter of a terminal device according to an embodiment of the present application. As shown in FIG. 3A , when the above-mentioned preamble sequence set group includes the preamble sequence set of the structure shown above, and each preamble sequence set includes J preamble sequences with at least one different preamble sequence, the above-mentioned terminal device can pass the first A first preamble sequence is generated by adding J preamble sequences in the first preamble sequence set corresponding to a preamble ID. That is, X in the above-mentioned X first random access sequences is equal to 1.

假定第一preamble序列集合包括的J个preamble序列为S1、S2……Sj,则终端设备可以通过如下公式(1),生成第一preamble序列。Assuming that the J preamble sequences included in the first preamble sequence set are S1, S2...Sj, the terminal device can generate the first preamble sequence by using the following formula (1).

S=S1+S2+…+Sj (1)S=S 1 +S 2 +...+S j (1)

终端设备在生成第一preamble序列之后,可以对该第一preamble序列进行子载波映射、离散傅里叶逆变换、插入循环前缀等处理。可选的,若第一preamble序列为时域序列,则在对第一preamble序列进行子载波映射之前还需要执行离散傅里叶变换。若第一preamble序列为频域序列,则在对第一preamble序列进行子载波映射之前不再需要执行离散傅里叶变换。相应地,若终端设备所使用的preamble序列格式为“将X个第一preamble序列重复多次”,则终端设备在对第一preamble序列进行离散傅里叶逆变换之后,还需根据preamble序列格式,对第一preamble序列进行重复。需要说明的是,终端设备如何对第一preamble序列进行离散傅里叶变换、子载波映射、离散傅里叶逆变换、重复处理、插入循环前缀等,可以参见现有技术,对此不再赘述。After generating the first preamble sequence, the terminal device may perform subcarrier mapping, inverse discrete Fourier transform, and cyclic prefix insertion on the first preamble sequence. Optionally, if the first preamble sequence is a time domain sequence, a discrete Fourier transform needs to be performed before subcarrier mapping is performed on the first preamble sequence. If the first preamble sequence is a frequency domain sequence, it is no longer necessary to perform discrete Fourier transform before performing subcarrier mapping on the first preamble sequence. Correspondingly, if the preamble sequence format used by the terminal device is "repeat X first preamble sequences multiple times", then after the terminal device performs inverse discrete Fourier transform on the first preamble sequence, it needs to , repeat the first preamble sequence. It should be noted that how the terminal device performs discrete Fourier transform, sub-carrier mapping, inverse discrete Fourier transform, repeated processing, and cyclic prefix insertion on the first preamble sequence can be referred to in the prior art, which will not be repeated here. .

终端设备在对第一preamble序列进行上述处理后,可以将第一preamble序列映射在第一时频资源上发送给网络设备。这里所说的第一时频资源例如可以包括:1个允许发送第一preamble序列的时域资源和1个允许发送第一preamble序列的频域资源。例如,终端设备可以将第一preamble序列映射在1个RACH频域资源上,生成1个preamble符号(symbol)。然后,终端设备可以将该1个preamble symbol在1个RACH时频symbol上发送。After performing the above processing on the first preamble sequence, the terminal device may map the first preamble sequence on the first time-frequency resource and send it to the network device. The first time-frequency resource mentioned here may include, for example, one time-domain resource allowing the sending of the first preamble sequence and one frequency-domain resource allowing the sending of the first preamble sequence. For example, the terminal device may map the first preamble sequence on one RACH frequency domain resource to generate one preamble symbol (symbol). Then, the terminal device can send the one preamble symbol on one RACH time-frequency symbol.

由于各preamble序列集合之间所包括的J个preamble序列至少有一个不同,因此,即便沿用LTE通信系统中一个小区使用64个ZC序列生成preamble序列集合的方式,那么通过该64个ZC序列生成的preamble序列集合的数量大于64个。因此,多个终端设备使用同一preamble序列集合生成请求接入待接入小区的preamble序列的概率会降低,即可以降低多个终端设备同时使用相同的preamble序列请求接入小区的概率(即降低随机接入碰撞概率),从而可以提高小区的RACH容量。Since at least one of the J preamble sequences included in each preamble sequence set is different, even if a cell in the LTE communication system uses 64 ZC sequences to generate a preamble sequence set, then the 64 ZC sequences are used to generate the preamble sequence set. The number of preamble sequence sets is greater than 64. Therefore, the probability that multiple terminal devices use the same set of preamble sequences to generate a preamble sequence requesting access to the cell to be accessed will be reduced, that is, the probability of multiple terminal devices using the same preamble sequence to request access to the cell at the same time can be reduced (that is, reducing random access to the cell). access collision probability), so that the RACH capacity of the cell can be improved.

另外,由于终端设备所发送的第一preamble序列的长度是一个ZC序列的长度,因此,可以将第一preamble序列长度与LTE通信系统下终端设备发送preamble序列的长度保持相同。即,可以使用与LTE通信系统中的ZC根序列长度相同的ZC根序列生成的ZC序列,生成preamble序列集合组。这样,终端设备发送上述第一preamble序列时所使用的时频资源大小,与LTE通信系统中的终端设备发送preamble序列时所使用的时频资源大小可以相同。也就是说,终端设备可以沿用LTE通信系统中终端设备发送preamble序列时所使用的子载波间隔发送第一preamble序列,使得终端设备发送的第一preamble序列具有更好的抗时延扩展性能,支持小区半径大。In addition, since the length of the first preamble sequence sent by the terminal device is the length of a ZC sequence, the length of the first preamble sequence can be kept the same as the length of the preamble sequence sent by the terminal device in the LTE communication system. That is, a preamble sequence set group can be generated using a ZC sequence generated from a ZC root sequence having the same length as the ZC root sequence in the LTE communication system. In this way, the size of the time-frequency resource used by the terminal device to send the first preamble sequence may be the same as the size of the time-frequency resource used by the terminal device to send the preamble sequence in the LTE communication system. That is to say, the terminal device can send the first preamble sequence by using the subcarrier interval used by the terminal device to send the preamble sequence in the LTE communication system, so that the first preamble sequence sent by the terminal device has better anti-delay extension performance, and supports The radius of the cell is large.

图3B为本申请实施例提供的另一种随机接入方法的流程示意图。如图3B所示,当终端设备在第一时频资源上向网络设备发送将第一preamble序列集合中的J个preamble序列相加生成的一个第一preamble序列时,网络设备可以在第一时频资源上检测终端设备发送的该第一随机接入序列。如图3B所示,该方法包括:FIG. 3B is a schematic flowchart of another random access method provided by an embodiment of the present application. As shown in FIG. 3B , when the terminal device sends a first preamble sequence generated by adding J preamble sequences in the first preamble sequence set to the network device on the first time-frequency resource, the network device can The first random access sequence sent by the terminal device is detected on the frequency resource. As shown in Figure 3B, the method includes:

S201、网络设备根据在第一时频资源上接收到的X个第一preamble序列,从preamble序列集合组中筛选出至少一个第二preamble序列集合。S201. The network device selects at least one second preamble sequence set from the preamble sequence set group according to the X first preamble sequences received on the first time-frequency resource.

由于不同终端设备所处的位置不同,所以,当有其他终端设备与上述终端设备同一时刻向网络设备发送第一preamble序列时,网络设备接收到其他终端设备与上述终端设备同一时刻发送的第一preamble序列的接收时间不同。因此,网络设备可以通过TA的位置区分上述终端设备发送的第一preamble序列。Since different terminal devices are located at different locations, when other terminal devices send the first preamble sequence to the network device at the same time as the above-mentioned terminal device, the network device receives the first preamble sequence sent by the other terminal device and the above-mentioned terminal device at the same time. The reception time of the preamble sequence is different. Therefore, the network device can distinguish the first preamble sequence sent by the terminal device according to the location of the TA.

网络设备在获取到上述终端设备发送的第一preamble序列后,可以先对该第一preamble序列进行傅里叶变换,以将第一preamble序列从时域变换到频域。相应地,网络设备对preamble序列集合组中的每个preamble序列集合中的preamble序列也进行傅里叶变换。然后,网络设备将第一preamble序列与preamble序列集合组中的preamble序列集合依次做频域相关、傅里叶逆变换和功率时延谱计算,以得到至少一个第二preamble序列集合。该至少一个第二preamble序列集合中的每个preamble序列的接收功率可以大于或等于预设第一门限值。其中,第一门限值的大小具体可以根据网络设备的配置确定。After acquiring the first preamble sequence sent by the terminal device, the network device may first perform Fourier transform on the first preamble sequence to transform the first preamble sequence from the time domain to the frequency domain. Correspondingly, the network device also performs Fourier transform on the preamble sequences in each preamble sequence set in the preamble sequence set group. Then, the network device sequentially performs frequency domain correlation, inverse Fourier transform and power delay spectrum calculation on the first preamble sequence and the preamble sequence set in the preamble sequence set group to obtain at least one second preamble sequence set. The received power of each preamble sequence in the at least one second preamble sequence set may be greater than or equal to a preset first threshold value. The size of the first threshold value may be specifically determined according to the configuration of the network device.

需要说明的是,网络设备将第一preamble序列与preamble序列集合组中的preamble序列集合做频域相关、傅里叶逆变换和功率时延谱计算的方式,可以沿用现有技术的方式,对此不再赘述。It should be noted that, the network device performs frequency domain correlation, inverse Fourier transform and power delay spectrum calculation on the first preamble sequence and the preamble sequence set in the preamble sequence set group, and can use the existing technology. This will not be repeated here.

S202、网络设备根据至少一个第二preamble序列集合,确定X个第一随机序列对应的preamble序列集合。S202. The network device determines the preamble sequence set corresponding to the X first random sequences according to the at least one second preamble sequence set.

网络设备在从preamble序列集合组中筛选出至少一个第二preamble序列集合之后,可以对进行频域相关后的至少一个第二preamble序列集合中的J个preamble序列进行相干合并。然后,网络设备可以对相干合并后的每个第二preamble序列集合进行傅里叶逆变换和功率时延谱计算,以得到每个第二preamble序列集合的接收功率。由于本实施例中,终端设备使用J个preamble序列生成的第一preamble序列是在1个允许发送第一preamble序列的频域资源上发送,也就是说,组成第一preamble序列的J个preamble序列的信道环境相同。因此,网络设备采用相干合并的方式,对进行傅里叶变换后的每个第二preamble序列集合中的J个preamble序列进行合并,后续所得到的每个第二preamble序列集合的接收功率更加准确。After filtering out at least one second preamble sequence set from the preamble sequence set group, the network device may coherently combine the J preamble sequences in the at least one second preamble sequence set after frequency domain correlation. Then, the network device may perform inverse Fourier transform and power delay spectrum calculation on each coherently combined set of second preamble sequences to obtain the received power of each set of second preamble sequences. Because in this embodiment, the first preamble sequence generated by the terminal device using the J preamble sequences is sent on a frequency domain resource that allows the sending of the first preamble sequence, that is, the J preamble sequences that make up the first preamble sequence The channel environment is the same. Therefore, the network device combines the J preamble sequences in each second preamble sequence set after Fourier transformation by means of coherent merging, and the received power of each second preamble sequence set obtained subsequently is more accurate .

网络设备在获取到每个第二preamble序列集合的接收功率之后,可以将接收功率最大且大于预设第二门限值的第二preamble序列集合作为第一随机序列对应的preamble序列集合。其中,第二门限值的大小具体可以根据网络设备的配置确定。然后,网络设备可以将第一随机序列对应的preamble序列集合的preamble ID,作为第一preamble序列对应的preamble ID。即将接收功率最大且大于预设第二门限值的第二preamble序列集合的preamble ID,作为第一preamble序列对应的preamble ID。After acquiring the received power of each second preamble sequence set, the network device may use the second preamble sequence set with the maximum received power and greater than the preset second threshold value as the preamble sequence set corresponding to the first random sequence. The size of the second threshold value may be specifically determined according to the configuration of the network device. Then, the network device may use the preamble ID of the preamble sequence set corresponding to the first random sequence as the preamble ID corresponding to the first preamble sequence. That is, the preamble ID of the second preamble sequence set with the maximum received power and greater than the preset second threshold value is used as the preamble ID corresponding to the first preamble sequence.

网络设备在确定了X个第一preamble序列对应的preamble ID之后的处理流程可以参见步骤S106的描述,对此不再赘述。For the processing flow after the network device determines the preamble IDs corresponding to the X first preamble sequences, reference may be made to the description of step S106, which will not be repeated here.

第二种方式:图3C为本申请实施例提供的另一种终端设备的发射机结构示意图。如图3C所示,在上述preamble序列集合组包括上述所示的结构的preamble序列集合时,即在第一preamble序列集合包括J个preamble序列时,上述终端设备可以将第一preamble ID对应的第一preamble序列集合中的每一个preamble序列作为一个第一preamble序列。即上述X个第一随机接入序列中的X等于J。在该实现方式下,每个第一preamble序列的长度Nzc等于preamble序列集合中一个preamble序列(即ZC序列)的长度。X个第一preamble序列中可以存在相同的第一preamble序列,或者,X个第一preamble序列中任意两个preamble序列均不相同,具体可以根据第一preamble序列集合中所包括的J个preamble序列是否相同确定。The second way: FIG. 3C is a schematic structural diagram of a transmitter of another terminal device provided by an embodiment of the present application. As shown in FIG. 3C , when the above-mentioned preamble sequence set group includes the preamble sequence set of the structure shown above, that is, when the first preamble sequence set includes J preamble sequences, the above-mentioned terminal device can use the first preamble ID corresponding to the first Each preamble sequence in a preamble sequence set is used as a first preamble sequence. That is, X in the above-mentioned X first random access sequences is equal to J. In this implementation manner, the length Nzc of each first preamble sequence is equal to the length of one preamble sequence (ie, ZC sequence) in the preamble sequence set. The same first preamble sequence may exist in the X first preamble sequences, or, any two preamble sequences in the X first preamble sequences are different. Specifically, it may be based on the J preamble sequences included in the first preamble sequence set. Is it the same to be sure.

终端设备在生成J个第一preamble序列之后,可以对该J个第一preamble序列分别进行子载波映射。然后,终端设备可以对该J个第一preamble序列进行离散傅里叶逆变换、插入循环前缀等处理。可选的,若第一preamble序列为时域序列,则在对每个第一preamble序列进行子载波映射之前还需要执行离散傅里叶变换。若第一preamble序列为频域序列,则在对每个第一preamble序列进行子载波映射之前不再需要执行离散傅里叶变换。相应地,若终端设备所使用的preamble序列格式为“将X个第一preamble序列重复多次”,则终端设备在对第一preamble序列进行离散傅里叶逆变换之后,还需根据preamble序列格式,对X个第一preamble序列进行重复。需要说明的是,终端设备如何对第一preamble序列进行离散傅里叶变换、子载波映射、离散傅里叶逆变换、重复处理、插入循环前缀等,可以参见现有技术,对此不再赘述。After generating the J first preamble sequences, the terminal device may perform subcarrier mapping on the J first preamble sequences respectively. Then, the terminal device may perform processing such as inverse discrete Fourier transform, inserting a cyclic prefix, and the like on the J first preamble sequences. Optionally, if the first preamble sequence is a time domain sequence, it is also necessary to perform discrete Fourier transform before performing subcarrier mapping on each first preamble sequence. If the first preamble sequence is a frequency domain sequence, it is no longer necessary to perform discrete Fourier transform before performing subcarrier mapping on each first preamble sequence. Correspondingly, if the preamble sequence format used by the terminal device is "repeat X first preamble sequences multiple times", then after the terminal device performs inverse discrete Fourier transform on the first preamble sequence, it needs to , repeat the X first preamble sequence. It should be noted that how the terminal device performs discrete Fourier transform, sub-carrier mapping, inverse discrete Fourier transform, repeated processing, and cyclic prefix insertion on the first preamble sequence can be referred to in the prior art, which will not be repeated here. .

终端设备在对J个第一preamble序列进行上述处理后,可以将该J个第一preamble序列映射在第二时频资源上发送给网络设备。这里所说的第二时频资源可以包括:1个允许发送第一preamble序列的时域资源和X个允许发送第一preamble序列的频域资源。例如,终端设备可以将J个第一preamble序列分别映射在J个RACH频域资源上,生成1个preamble符号(symbol)。然后,终端设备可以将该1个preamble symbol在1个RACH时频symbol上发送。After the terminal device performs the above processing on the J first preamble sequences, the J first preamble sequences may be mapped on the second time-frequency resource and sent to the network device. The second time-frequency resources mentioned here may include: 1 time-domain resource allowing the sending of the first preamble sequence and X frequency-domain resources allowing the sending of the first preamble sequence. For example, the terminal device may map the J first preamble sequences on the J RACH frequency domain resources, respectively, to generate one preamble symbol (symbol). Then, the terminal device can send the one preamble symbol on one RACH time-frequency symbol.

由于各preamble序列集合之间所包括的J个preamble序列至少有一个不同,因此,即便沿用LTE通信系统中一个小区使用64个ZC序列的方式,那么通过该64个ZC序列生成的的preamble序列集合的数量大于64个。因此,终端设备通过将第一preamble ID对应的第一preamble序列集合的每一个preamble序列作为一个第一preamble序列的方式,可以使多个终端设备生成的preamble序列相同的概率降低,即可以降低多个终端设备同时使用相同的preamble序列请求接入小区的概率(即降低随机接入碰撞概率),从而可以提高小区的RACH容量。Since at least one of the J preamble sequences included in each preamble sequence set is different, even if the method of using 64 ZC sequences in one cell in the LTE communication system is used, the preamble sequence set generated by the 64 ZC sequences The number is greater than 64. Therefore, by using each preamble sequence of the first preamble sequence set corresponding to the first preamble ID as a first preamble sequence, the terminal device can reduce the probability that the preamble sequences generated by multiple terminal devices are the same, that is, can reduce the number of preamble sequences generated by multiple terminal devices. The probability that each terminal equipment simultaneously uses the same preamble sequence to request access to the cell (ie, reduces the probability of random access collision), so that the RACH capacity of the cell can be improved.

另外,本实施例中,网络设备在生成preamble序列集合时,可以使用长度等于LTE通信系统中的ZC根序列长度的J分之一的ZC根序列,以使得终端设备基于第一preamble ID对应的第一preamble序列集合所生成的J个第一preamble序列中的每个第一preamble序列的长度均为LTE通信系统中的preamble序列的J分之一。这样,终端设备可以沿用LTE通信系统中终端设备发送preamble序列时所使用的子载波间隔发送X个第一preamble序列,使得终端设备发送的第一preamble序列具有更好的抗时延扩展性能,支持小区半径大。In addition, in this embodiment, when the network device generates the preamble sequence set, it can use the ZC root sequence whose length is equal to one-J of the length of the ZC root sequence in the LTE communication system, so that the terminal device is based on the first preamble ID corresponding to the ZC root sequence. The length of each first preamble sequence in the J first preamble sequences generated by the first preamble sequence set is one-J half of the preamble sequence in the LTE communication system. In this way, the terminal device can send X first preamble sequences using the subcarrier interval used by the terminal device to send the preamble sequence in the LTE communication system, so that the first preamble sequence sent by the terminal device has better anti-delay extension performance, and supports The radius of the cell is large.

图3D为本申请实施例提供的又一种随机接入方法的流程示意图。如图3D所示,当终端设备在第二时频资源上向网络设备发送上述J个第一preamble序列时,网络设备可以在第二时频资源上检测终端设备发送的J个第一随机接入序列。如图3D所示,该方法包括:FIG. 3D is a schematic flowchart of another random access method provided by an embodiment of the present application. As shown in FIG. 3D , when the terminal device sends the above-mentioned J first preamble sequences to the network device on the second time-frequency resource, the network device may detect the J first random access sequences sent by the terminal device on the second time-frequency resource. into the sequence. As shown in Figure 3D, the method includes:

S301、网络设备根据在J个频域资源上接收到的J个第一preamble序列,从preamble序列集合组中筛选出至少一个第三preamble序列集合。S301. The network device selects at least one third preamble sequence set from the preamble sequence set group according to the J first preamble sequences received on the J frequency domain resources.

由于不同终端设备所处的位置不同,所以,当有其他终端设备与上述终端设备同一时刻向网络设备发送J个第一preamble序列时,网络设备接收到其他终端设备与上述终端设备同一时刻发送的J个第一preamble序列的接收时间不同。因此,网络设备可以通过TA的位置区分上述终端设备发送的J个第一preamble序列。Since different terminal devices are located at different positions, when other terminal devices send J first preamble sequences to the network device at the same time as the above-mentioned terminal device, the network device receives the The reception times of the J first preamble sequences are different. Therefore, the network device can distinguish the J first preamble sequences sent by the terminal device according to the location of the TA.

网络设备在接收到上述终端设备在J个频域资源上发送的J个第一preamble序列后,可以先对该J个第一preamble序列进行傅里叶变换,以将J个第一preamble序列从时域变换到频域。然后,网络设备可以对该J个进行傅里叶变换后的第一preamble序列进行子载波逆映射处理,以将J个进行傅里叶变换后的第一preamble序列拆分开。相应地,网络设备对preamble序列集合组中的每个preamble序列集合中的preamble序列也进行傅里叶变换。After receiving the J first preamble sequences sent by the above-mentioned terminal device on the J frequency domain resources, the network device may first perform Fourier transform on the J first preamble sequences, so as to convert the J first preamble sequences from Transform the time domain to the frequency domain. Then, the network device may perform subcarrier inverse mapping processing on the J first preamble sequences after Fourier transform, so as to split the J first preamble sequences after Fourier transform. Correspondingly, the network device also performs Fourier transform on the preamble sequences in each preamble sequence set in the preamble sequence set group.

然后,网络设备可以对每个进行傅里叶变换后的第一preamble序列与preamble序列集合组中的preamble序列集合依次做频域相关、傅里叶逆变换和功率时延谱计算,以得到至少一个第三preamble序列集合。该至少一个第三preamble序列集合中的每个preamble序列的接收功率大于或等于预设第一门限值。Then, the network device can perform frequency domain correlation, inverse Fourier transform, and power delay spectrum calculation on each of the first preamble sequence after Fourier transform and the preamble sequence set in the preamble sequence set group in turn, so as to obtain at least A third set of preamble sequences. The received power of each preamble sequence in the at least one third preamble sequence set is greater than or equal to a preset first threshold value.

需要说明的是,网络设备如何对该J个进行傅里叶变换后的第一preamble序列进行子载波逆映射处理,以将J个进行傅里叶变换后的第一preamble序列拆分开,以及,网络设备在频域将J个第一preamble序列与preamble序列集合组中的preamble序列集合做频域相关、傅里叶逆变换和功率时延谱计算的方式,可以沿用现有技术的方式,对此不再赘述。It should be noted that how the network equipment performs subcarrier inverse mapping processing on the J first preamble sequences after Fourier transform, so as to split the J first preamble sequences after Fourier transform, and , the network equipment performs frequency domain correlation, inverse Fourier transform and power delay spectrum calculation with the preamble sequence set in the J first preamble sequence and the preamble sequence set group in the frequency domain, and the method of the prior art can be used, This will not be repeated here.

S302、网络设备根据至少一个第三preamble序列集合,确定J个第一随机序列对应的preamble序列集合。S302. The network device determines the preamble sequence sets corresponding to the J first random sequences according to the at least one third preamble sequence set.

网络设备在从preamble序列集合组中筛选出至少一个第三preamble序列集合之后,可以对进行频域相关后的至少一个第三preamble序列集合依次进行傅里叶逆变换、功率时延谱计算和非相干合并,以得到每个第三preamble序列集合的接收功率。由于本实施例中,终端设备使用J个preamble序列生成的J个第一preamble序列是在J个允许发送第一preamble序列的频域资源上发送,也就是说,J个preamble序列的信道环境不相同。因此,网络设备采用非相干合并的方式,对功率时延谱计算后的每个第三preamble序列集合中的J个preamble序列进行非相干合并,后续所得到的每个第三preamble序列集合的接收功率更加准确。After screening out at least one third preamble sequence set from the preamble sequence set group, the network device may sequentially perform inverse Fourier transform, power delay spectrum calculation and non-linear on the at least one third preamble sequence set after frequency domain correlation. Coherent combining to obtain the received power for each third set of preamble sequences. Because in this embodiment, the J first preamble sequences generated by the terminal device using the J preamble sequences are sent on the J frequency domain resources that are allowed to send the first preamble sequence, that is, the channel environment of the J preamble sequences is not same. Therefore, the network device adopts a non-coherent combination method to non-coherently combine the J preamble sequences in each third preamble sequence set after the power delay spectrum calculation, and each subsequent third preamble sequence set is received. Power is more accurate.

网络设备在获取到每个第三preamble序列集合的接收功率之后,可以将接收功率最大且大于预设第二门限值的第三preamble序列集合作为第一随机序列对应的preamble序列集合。然后,网络设备可以将第一随机序列对应的preamble序列集合的preamble ID,作为第一preamble序列对应的preamble ID。即将接收功率最大且大于预设第二门限值的第三preamble序列集合的preamble ID,作为第一preamble序列对应的preamble ID。After acquiring the received power of each third preamble sequence set, the network device may use the third preamble sequence set with the maximum received power and greater than the preset second threshold value as the preamble sequence set corresponding to the first random sequence. Then, the network device may use the preamble ID of the preamble sequence set corresponding to the first random sequence as the preamble ID corresponding to the first preamble sequence. That is, the preamble ID of the third preamble sequence set with the maximum received power and greater than the preset second threshold value is used as the preamble ID corresponding to the first preamble sequence.

网络设备在确定了J个第一preamble序列对应的preamble ID之后的处理流程可以参见步骤S106的描述,对此不再赘述。For the processing flow after the network device determines the preamble IDs corresponding to the J first preamble sequences, reference may be made to the description of step S106, which will not be repeated here.

需要说明的是,图3D所示的网络设备检测J个第一preamble序列的过程与图3B所示的网络设备检测J个第一preamble序列的过程类似,唯一不同的是,图3B中网络设备是在码域对J个第一preamble序列进行检测,图3D中网络设备是在频域对J个第一preamble序列进行检测。It should be noted that the process of detecting the J first preamble sequences by the network device shown in FIG. 3D is similar to the process of detecting the J first preamble sequences by the network device shown in FIG. 3B . The only difference is that the network device in FIG. 3B The J first preamble sequences are detected in the code domain. In FIG. 3D , the network device detects the J first preamble sequences in the frequency domain.

第二种结构:preamble序列集合组中的每个preamble序列集合包括M个preamble序列子集,每个preamble序列子集包括Y个preamble序列,M和Y均为正整数。各preamble序列集合之间至少有一个preamble序列子集不同。一个preamble序列集合中包括的M个preamble序列子集可以相同,也可以不同。也就是说,第一preamble序列集合包括M个preamble序列子集,每个preamble序列子集包括Y个preamble序列。在该场景下,每个第一preamble序列为根据第一preamble序列集合中的一个preamble序列子集得到的preamble序列。The second structure: each preamble sequence set in the preamble sequence set group includes M preamble sequence subsets, each preamble sequence subset includes Y preamble sequences, and M and Y are both positive integers. At least one subset of preamble sequences is different between each preamble sequence set. The M preamble sequence subsets included in a preamble sequence set may be the same or different. That is, the first preamble sequence set includes M preamble sequence subsets, and each preamble sequence subset includes Y preamble sequences. In this scenario, each first preamble sequence is a preamble sequence obtained according to a subset of preamble sequences in the first preamble sequence set.

以第一preamble序列集合为例,第一preamble序列集合例如可以如表2所示:Taking the first preamble sequence set as an example, the first preamble sequence set can be shown in Table 2, for example:

表2Table 2

在该场景下,上述网络设备广播preamble序列集合组配置信息还可以包括M的取值,以及,Y的取值。In this scenario, the above-mentioned network device broadcast preamble sequence set group configuration information may further include the value of M and the value of Y.

其中,每个preamble序列子集所包括的Y个preamble序列中的每个preamble序列为一个ZC序列。即,每个preamble序列子集包括Y个ZC序列。该Y个ZC序列可以是相同的ZC序列,也可以是有至少一个不同的ZC序列,还可以是全部不同的ZC序列。当preamble序列子集包括不同的ZC序列时,这些不同的ZC序列可以是由同一个ZC根序列生成的序列。即,从单个ZC根序列产生的循环移位序列子集中随机选择的不同ZC序列。在该实现方式下,这些不同的ZC序列中的任意两个ZC序列均为正交序列。或者,这些不同的ZC序列可以是由多个ZC根序列生成的序列。即,从多个ZC根序列产生的循环移位序列子集中随机选择的不同ZC序列。在该实现方式下,这些不同的ZC序列中的任意两个preamble序列均为准正交序列。Wherein, each preamble sequence in the Y preamble sequences included in each preamble sequence subset is a ZC sequence. That is, each subset of preamble sequences includes Y ZC sequences. The Y ZC sequences may be the same ZC sequence, at least one different ZC sequence, or all different ZC sequences. When the subset of preamble sequences includes different ZC sequences, these different ZC sequences may be sequences generated from the same ZC root sequence. That is, different ZC sequences randomly selected from a subset of cyclically shifted sequences generated from a single ZC root sequence. In this implementation manner, any two ZC sequences in these different ZC sequences are orthogonal sequences. Alternatively, these different ZC sequences can be sequences generated from multiple ZC root sequences. That is, a different ZC sequence randomly selected from a subset of cyclically shifted sequences generated from multiple ZC root sequences. In this implementation manner, any two preamble sequences in these different ZC sequences are quasi-orthogonal sequences.

在第一preamble序列集合如表2所示时,上述终端设备生成第一随机接入序列的方式包括如下两种实现方式:When the first preamble sequence set is shown in Table 2, the manner in which the terminal device generates the first random access sequence includes the following two implementation manners:

第一种方式:继续参照图3A,终端设备可以通过将第一preamble ID对应的第一preamble序列集合中的每一个preamble序列子集中的Y个preamble序列相加的方式,生成一个第一preamble序列。即上述X个第一随机接入序列中的X可以等于M。在该实现方式下,M个第一preamble序列中可以存在相同的第一preamble序列,或者,M个第一preamble序列中任意两个preamble序列均不相同,具体可以根据第一preamble序列集合中所包括的M个preamble序列子集是否相同确定。具体实现时,终端设备可以采用上述公式(1)所示的方式,使用Y个preamble序列相加生成第一preamble序列,对此不再赘述。The first way: continue referring to FIG. 3A, the terminal device can generate a first preamble sequence by adding Y preamble sequences in each preamble sequence subset in the first preamble sequence set corresponding to the first preamble ID . That is, X in the above-mentioned X first random access sequences may be equal to M. In this implementation manner, the same first preamble sequence may exist in the M first preamble sequences, or any two preamble sequences in the M first preamble sequences are different. It is determined whether the included M preamble sequence subsets are the same. During specific implementation, the terminal device may use the method shown in the above formula (1) to generate the first preamble sequence by adding Y preamble sequences, which will not be repeated here.

终端设备在生成M个第一preamble序列之后,可以对该M个第一preamble序列进行子载波映射、离散傅里叶逆变换、插入循环前缀等处理。可选的,若第一preamble序列为时域序列,则在对M个第一preamble序列进行子载波映射之前还需要对每个第一preamble序列分别执行离散傅里叶变换。若第一preamble序列为频域序列,则在对M个第一preamble序列进行子载波映射之前,不需要对每个第一preamble序列分别执行离散傅里叶变换。相应地,若终端设备所使用的preamble序列格式为“将X个第一preamble序列重复多次”,则终端设备在对M个第一preamble序列进行离散傅里叶逆变换之后,还需根据preamble序列格式,对M个第一preamble序列进行重复处理。需要说明的是,终端设备如何对第一preamble序列进行离散傅里叶变换、子载波映射、离散傅里叶逆变换、重复处理、插入循环前缀等,可以参见现有技术,对此不再赘述。After generating the M first preamble sequences, the terminal device may perform subcarrier mapping, inverse discrete Fourier transform, and cyclic prefix insertion on the M first preamble sequences. Optionally, if the first preamble sequence is a time domain sequence, before subcarrier mapping is performed on the M first preamble sequences, discrete Fourier transform needs to be performed on each first preamble sequence respectively. If the first preamble sequence is a frequency domain sequence, it is not necessary to perform discrete Fourier transform on each first preamble sequence before subcarrier mapping is performed on the M first preamble sequences. Correspondingly, if the format of the preamble sequence used by the terminal device is "repeat the X first preamble sequences multiple times", then after the terminal device performs inverse discrete Fourier transform on the M first preamble sequences, the Sequence format, the M first preamble sequences are repeatedly processed. It should be noted that how the terminal device performs discrete Fourier transform, sub-carrier mapping, inverse discrete Fourier transform, repeated processing, and cyclic prefix insertion on the first preamble sequence can be referred to in the prior art, which will not be repeated here. .

终端设备在对M个第一preamble序列进行上述处理后,可以将该M个第一preamble序列映射在第三时频资源上发送给网络设备。这里所说的第三时频资源包括:M个允许发送第一preamble序列的时域资源和1个允许发送第一preamble序列的频域资源。例如,终端设备可以将M个第一preamble序列映射在1个RACH频域资源上,生成M个preamble符号(symbol)。然后,终端设备可以将该M个preamble symbol在M个RACH时频symbol上发送。After the terminal device performs the above processing on the M first preamble sequences, the M first preamble sequences may be mapped on the third time-frequency resource and sent to the network device. The third time-frequency resources mentioned here include: M time-domain resources allowed to send the first preamble sequence and 1 frequency-domain resource allowed to send the first preamble sequence. For example, the terminal device may map M first preamble sequences on one RACH frequency domain resource to generate M preamble symbols (symbols). Then, the terminal device may send the M preamble symbols on the M RACH time-frequency symbols.

由于各preamble序列集合之间至少有一个preamble序列子集不同,因此,即便沿用LTE通信系统中一个小区使用64个ZC序列生成preamble序列集合的方式,那么通过该64个ZC序列生成的preamble序列集合的数量大于64个。因此,多个终端设备使用同一preamble序列集合生成请求接入待接入小区的preamble序列的概率会降低,即可以降低多个终端设备同时使用相同的preamble序列请求接入小区的概率(即降低随机接入碰撞概率),从而可以提高小区的RACH容量。Since at least one preamble sequence subset is different between each preamble sequence set, even if a cell in the LTE communication system uses 64 ZC sequences to generate a preamble sequence set, then the preamble sequence set generated by the 64 ZC sequences is used. The number is greater than 64. Therefore, the probability that multiple terminal devices use the same set of preamble sequences to generate a preamble sequence requesting access to the cell to be accessed will be reduced, that is, the probability of multiple terminal devices using the same preamble sequence to request access to the cell at the same time can be reduced (that is, reducing random access to the cell). access collision probability), so that the RACH capacity of the cell can be improved.

另外,由于终端设备需要占用M个时域资源发送M个第一preamble序列,因此,在将M个第一preamble序列长度与LTE通信系统下终端设备发送preamble序列的长度保持相同时,相比LTE通信系统中终端设备发送preamble序列时所使用的子载波间隔,本实施例中终端设备需要增大发送第一preamble序列时所使用的子载波间隔,即减少第一preamble序列的长度。例如,每个第一preamble序列的长度为LTE通信系统中的preamble序列的M分之一。也就是说,本实施例中,网络设备在生成preamble序列集合时,可以使用长度等于LTE通信系统中的ZC根序列长度的M分之一的ZC根序列,以使得终端设备基于第一preamble ID对应的第一preamble序列集合所生成的M个第一preamble序列中的每个第一preamble序列的长度均为LTE通信系统中的preamble序列的M分之一。通过这种方式,可以使得终端设备所发送的M个第一preamble序列抗频偏性能较好。In addition, since the terminal device needs to occupy M time domain resources to send M first preamble sequences, when the length of the M first preamble sequences is kept the same as the length of the preamble sequence sent by the terminal device in the LTE communication system, compared with the LTE The subcarrier spacing used by the terminal equipment in the communication system when sending the preamble sequence. In this embodiment, the terminal equipment needs to increase the subcarrier spacing used when sending the first preamble sequence, that is, reduce the length of the first preamble sequence. For example, the length of each first preamble sequence is M/M of the preamble sequence in the LTE communication system. That is to say, in this embodiment, when generating the preamble sequence set, the network device may use a ZC root sequence whose length is equal to one M of the length of the ZC root sequence in the LTE communication system, so that the terminal device is based on the first preamble ID. The length of each first preamble sequence in the M first preamble sequences generated by the corresponding first preamble sequence set is 1/M of the length of the preamble sequence in the LTE communication system. In this way, the anti-frequency offset performance of the M first preamble sequences sent by the terminal device can be better.

图4A为本申请实施例提供的又一种随机接入方法的流程示意图。当终端设备在第三时频资源上向网络设备发送将第一preamble序列集合中一个preamble序列子集中的Y个preamble序列相加生成的每个第一preamble序列时,网络设备可以在第三时频资源上检测终端设备发送的该第一随机接入序列。如图4A所示,该方法包括:FIG. 4A is a schematic flowchart of another random access method provided by an embodiment of the present application. When the terminal device sends each first preamble sequence generated by adding Y preamble sequences in a subset of preamble sequences in the first preamble sequence set to the network device on the third time-frequency resource, the network device can send each first preamble sequence to the network device at the third time-frequency resource. The first random access sequence sent by the terminal device is detected on the frequency resource. As shown in Figure 4A, the method includes:

S401、网络设备根据在X个时域资源上接收到的X个第一preamble序列,从preamble序列集合组中筛选出至少X个第一preamble序列子集。S401. The network device selects at least X first preamble sequence subsets from the preamble sequence set group according to the X first preamble sequences received on the X time domain resources.

由于不同终端设备所处的位置不同,所以,当有其他终端设备与上述终端设备同一时刻向网络设备发送M个第一preamble序列时,网络设备接收到其他终端设备与上述终端设备同一时刻发送的M个第一preamble序列的接收时间不同。因此,网络设备可以通过TA的位置区分上述终端设备发送的M个第一preamble序列。Since different terminal devices are located at different positions, when other terminal devices send M first preamble sequences to the network device at the same time as the above-mentioned terminal device, the network device receives the preamble sequences sent by the other terminal devices at the same time as the above-mentioned terminal device. The reception times of the M first preamble sequences are different. Therefore, the network device can distinguish the M first preamble sequences sent by the terminal device according to the location of the TA.

网络设备在接收到上述终端设备在M个时域资源上发送的M个第一preamble序列后,可以先对每个第一preamble序列进行傅里叶变换,以将第一preamble序列从时域变换到频域。相应地,网络设备对preamble序列集合组中的每个preamble序列集合中的preamble序列也进行傅里叶变换。然后,网络设备可以在频域将每个第一preamble序列与preamble序列集合组中的preamble序列集合中的每个preamble序列子集依次做频域相关、傅里叶逆变换和功率时延谱计算,以得到每个第一preamble序列对应的至少一个第一preamble序列子集。即M个第一preamble序列对应的至少X个第一preamble序列子集。其中,该至少一个第一preamble序列子集中的每个preamble序列的接收功率可以大于或等于预设第一门限值。其中,第一门限值的大小具体可以根据网络设备的配置确定。After receiving the M first preamble sequences sent by the above-mentioned terminal device on the M time domain resources, the network device may first perform Fourier transform on each first preamble sequence to transform the first preamble sequence from the time domain. to the frequency domain. Correspondingly, the network device also performs Fourier transform on the preamble sequences in each preamble sequence set in the preamble sequence set group. Then, the network device can perform frequency domain correlation, inverse Fourier transform and power delay spectrum calculation on each first preamble sequence and each preamble sequence subset in the preamble sequence set in the preamble sequence set group in turn in the frequency domain , so as to obtain at least one subset of the first preamble sequence corresponding to each first preamble sequence. That is, at least X subsets of the first preamble sequences corresponding to the M first preamble sequences. Wherein, the received power of each preamble sequence in the at least one first preamble sequence subset may be greater than or equal to a preset first threshold value. The size of the first threshold value may be specifically determined according to the configuration of the network device.

需要说明的是,网络设备在频域将第一preamble序列与preamble序列集合组中的preamble序列集合中的每个preamble序列子集做频域相关、傅里叶逆变换和功率时延谱计算的方式,可以沿用现有技术的方式,对此不再赘述。It should be noted that the network device performs frequency domain correlation, inverse Fourier transform and power delay spectrum calculation between the first preamble sequence and each preamble sequence subset in the preamble sequence set in the preamble sequence set group in the frequency domain. The manner in the prior art can be used, and details are not repeated here.

S402、网络设备在每个时域资源上根据至少一个第一preamble序列子集确定至少一个第二preamble序列子集。S402. The network device determines at least one second preamble sequence subset according to at least one first preamble sequence subset on each time domain resource.

网络设备在从preamble序列集合组中筛选出至少M个第一preamble序列子集之后,在每个时域资源上对每个第一preamble序列子集中的Y个preamble序列进行合并,将接收功率最大且大于第二门限值的第一preamble序列子集作为第二preamble序列子集。即,网络设备确定M个第一随机序列分别对应的至少M个preamble序列子集,该至少M个preamble序列子集可以组成至少一个preamble序列集合。其中,网络设备如何对每个第一preamble序列子集中的Y个preamble序列进行合并,以及如何筛选第二preamble序列子集可以参见上述S202中关于如何preamble序列集合中的J个preamble序列合并的描述,对此不再赘述。After screening out at least M first preamble sequence subsets from the preamble sequence set group, the network device combines Y preamble sequences in each first preamble sequence subset on each time domain resource, and uses the maximum received power. And the first preamble sequence subset greater than the second threshold value is used as the second preamble sequence subset. That is, the network device determines at least M preamble sequence subsets corresponding to the M first random sequences respectively, and the at least M preamble sequence subsets may form at least one preamble sequence set. Wherein, how the network device merges the Y preamble sequences in each first preamble sequence subset, and how to filter the second preamble sequence subset, please refer to the description in S202 above on how to merge the J preamble sequences in the preamble sequence set , which will not be repeated here.

S403、网络设备根据在X个时域资源上确定的至少X个第二preamble序列子集,确定X个第一随机序列对应的preamble序列集合。S403. The network device determines the preamble sequence set corresponding to the X first random sequences according to the at least X second preamble sequence subsets determined on the X time domain resources.

网络设备确定M个第一随机序列分别对应的至少M个第二preamble序列子集之后,可以对该M个时域资源上确定的至少M个第二preamble序列子集进行合并,将接收功率最大且大于第三门限值的preamble序列集合作为X个第一随机序列对应的preamble序列集合。其中,第三门限值的大小具体可以根据网络设备的配置确定。由于本实施例中,终端设备使用preamble序列子集生成的M个第一preamble序列是在M个允许发送第一preamble序列的时域资源上发送,也就是说,M个第一preamble序列的信道环境不相同。因此,网络设备采用非相干合并的方式,对功率时延谱计算后的第二preamble序列子集进行非相干合并,后续所得到的每个preamble序列集合的接收功率更加准确。After the network device determines at least M second preamble sequence subsets corresponding to the M first random sequences respectively, it can combine the at least M second preamble sequence subsets determined on the M time domain resources, and use the maximum received power And the set of preamble sequences greater than the third threshold value is used as the set of preamble sequences corresponding to the X first random sequences. The size of the third threshold value may be specifically determined according to the configuration of the network device. Because in this embodiment, the M first preamble sequences generated by the terminal device using the preamble sequence subset are sent on the M time domain resources allowed to send the first preamble sequence, that is, the M channels of the first preamble sequence The environment is not the same. Therefore, the network device performs incoherent combination on the second subset of preamble sequences after the power delay spectrum calculation by means of incoherent combination, and the received power of each preamble sequence set obtained subsequently is more accurate.

然后,网络设备可以将第一随机序列对应的preamble序列集合的preamble ID,作为第一preamble序列对应的preamble ID。即将接收功率最大且大于预设第三门限值的preamble序列集合的preamble ID,作为第一preamble序列对应的preamble ID。Then, the network device may use the preamble ID of the preamble sequence set corresponding to the first random sequence as the preamble ID corresponding to the first preamble sequence. That is, the preamble ID of the preamble sequence set with the maximum received power and greater than the preset third threshold value is used as the preamble ID corresponding to the first preamble sequence.

网络设备在确定了X个第一preamble序列对应的preamble ID之后的处理流程可以参见步骤S106的描述,对此不再赘述。For the processing flow after the network device determines the preamble IDs corresponding to the X first preamble sequences, reference may be made to the description of step S106, which will not be repeated here.

第二种方式:图4B为本申请实施例提供的又一种终端设备的发射机结构示意图。如图4B所示,在本实施例中,终端设备可以生成M个第一随机接入序列,该M个第一随机接入序列的生成方式可以参见本结构中第一种方式的描述,对此不再赘述。The second manner: FIG. 4B is a schematic structural diagram of a transmitter of another terminal device provided by an embodiment of the present application. As shown in FIG. 4B , in this embodiment, the terminal device may generate M first random access sequences. For the generation manner of the M first random access sequences, reference may be made to the description of the first manner in this structure. This will not be repeated here.

与第一种方式不同的是,终端设备在生成M个第一preamble序列之后,可以对该M个第一preamble序列分别进行子载波映射。然后,终端设备可以对该M个第一preamble序列进行离散傅里叶逆变换、插入循环前缀等处理。可选的,若第一preamble序列为时域序列,则在对M个第一preamble序列进行子载波映射之前还需要对每个第一preamble序列分别执行离散傅里叶变换。若第一preamble序列为频域序列,则在对M个第一preamble序列进行子载波映射之前,不需要对每个第一preamble序列分别执行离散傅里叶变换。相应地,若终端设备所使用的preamble序列格式为“将X个第一preamble序列重复多次”,则终端设备在对M个第一preamble序列进行离散傅里叶逆变换之后,还需根据preamble序列格式,对M个第一preamble序列进行重复。需要说明的是,终端设备如何对第一preamble序列进行离散傅里叶变换、子载波映射、离散傅里叶逆变换、重复处理、插入循环前缀等,可以参见现有技术,对此不再赘述。Different from the first manner, after generating the M first preamble sequences, the terminal device may perform subcarrier mapping on the M first preamble sequences respectively. Then, the terminal device may perform inverse discrete Fourier transform on the M first preamble sequences, insert a cyclic prefix, and the like. Optionally, if the first preamble sequence is a time domain sequence, before subcarrier mapping is performed on the M first preamble sequences, discrete Fourier transform needs to be performed on each first preamble sequence respectively. If the first preamble sequence is a frequency domain sequence, it is not necessary to perform discrete Fourier transform on each first preamble sequence before subcarrier mapping is performed on the M first preamble sequences. Correspondingly, if the format of the preamble sequence used by the terminal device is "repeat the X first preamble sequences multiple times", then after the terminal device performs inverse discrete Fourier transform on the M first preamble sequences, the Sequence format, repeating the M first preamble sequences. It should be noted that how the terminal device performs discrete Fourier transform, sub-carrier mapping, inverse discrete Fourier transform, repeated processing, and cyclic prefix insertion on the first preamble sequence can be referred to in the prior art, which will not be repeated here. .

终端设备在对M个第一preamble序列进行上述处理后,可以将该M个第一preamble序列映射在第三时频资源上发送给网络设备。这里所说的第三时频资源与第一种方式所说的第三时频资源不同。本实施例中,第三时频资源可以包括:M个允许发送第一preamble序列的频域资源和1个允许发送第一preamble序列的时域资源。例如,终端设备可以将M个第一preamble序列映射在M个RACH频域资源上,生成1个preamble符号(symbol)。然后,终端设备可以将该1个preamble symbol在1个RACH时频symbol上发送。After the terminal device performs the above processing on the M first preamble sequences, the M first preamble sequences may be mapped on the third time-frequency resource and sent to the network device. The third time-frequency resource mentioned here is different from the third time-frequency resource mentioned in the first manner. In this embodiment, the third time-frequency resources may include: M frequency domain resources allowed to send the first preamble sequence and 1 time domain resource allowed to send the first preamble sequence. For example, the terminal device may map M first preamble sequences on M RACH frequency domain resources to generate 1 preamble symbol (symbol). Then, the terminal device can send the one preamble symbol on one RACH time-frequency symbol.

由于各preamble序列集合之间至少有一个preamble序列子集不同,因此,即便沿用LTE通信系统中一个小区使用64个ZC序列生成preamble序列集合的方式,那么通过该64个ZC序列生成的preamble序列集合的数量大于64个。因此,多个终端设备使用同一preamble序列集合生成的请求接入待接入小区的preamble序列的概率会降低,即可以降低多个终端设备同时使用相同的preamble序列请求接入小区的概率(即降低随机接入碰撞概率),从而可以提高小区的RACH容量。Since at least one preamble sequence subset is different between each preamble sequence set, even if a cell in the LTE communication system uses 64 ZC sequences to generate a preamble sequence set, then the preamble sequence set generated by the 64 ZC sequences is used. The number is greater than 64. Therefore, the probability that multiple terminal devices use the same preamble sequence set to request access to the preamble sequence of the cell to be accessed will be reduced, that is, the probability of multiple terminal devices using the same preamble sequence to request access to the cell at the same time can be reduced. random access collision probability), so that the RACH capacity of the cell can be improved.

另外,本实施例中,网络设备在生成preamble序列集合时,可以使用长度等于LTE通信系统中的ZC根序列长度的M分之一的ZC根序列,以使得终端设备基于第一preamble ID对应的第一preamble序列集合所生成的M个第一preamble序列中的每个第一preamble序列的长度均为LTE通信系统中的preamble序列M分之一。这样,终端设备可以沿用LTE通信系统中终端设备发送preamble序列时所使用的子载波间隔发送M个第一preamble序列,使得终端设备发送的M个第一preamble序列具有更好的抗时延扩展性能,支持小区半径大。In addition, in this embodiment, when generating the preamble sequence set, the network device may use a ZC root sequence whose length is equal to one M of the length of the ZC root sequence in the LTE communication system, so that the terminal device is based on the first preamble ID corresponding to the ZC root sequence. The length of each first preamble sequence in the M first preamble sequences generated by the first preamble sequence set is 1/M of the preamble sequence in the LTE communication system. In this way, the terminal device can send the M first preamble sequences by using the subcarrier interval used by the terminal device to send the preamble sequence in the LTE communication system, so that the M first preamble sequences sent by the terminal device have better anti-delay extension performance , which supports a large cell radius.

当终端设备在本方式所示的第三时频资源上向网络设备发送上述M个第一preamble序列时,网络设备可以在第三时频资源上检测终端设备发送的M个第一随机接入序列。例如,网络设备可以采用图3B所示的方式,检测在每个频域上接收到的第一preamble序列对应的至少一个preamble序列子集。When the terminal device sends the above-mentioned M first preamble sequences to the network device on the third time-frequency resource shown in this manner, the network device can detect the M first random access sequences sent by the terminal device on the third time-frequency resource sequence. For example, the network device may detect at least one preamble sequence subset corresponding to the first preamble sequence received in each frequency domain in the manner shown in FIG. 3B .

然后,网络设备可以对M个第一preamble序列对应的至少M个preamble序列子集进行非相干合并,以获取M个第一preamble序列对应的至少一个preamble序列集合的接收功率,并将接收功率最大且大于预设第三门限值的preamble序列集合作为第一随机序列对应的preamble序列集合。然后,网络设备可以将第一随机序列对应的preamble序列集合的preamble ID,作为第一preamble序列对应的preamble ID。即将接收功率最大且大于预设第三门限值的preamble序列集合的preamble ID,作为第一preamble序列对应的preambleID。Then, the network device may non-coherently combine at least M preamble sequence subsets corresponding to the M first preamble sequences to obtain the received power of at least one preamble sequence set corresponding to the M first preamble sequences, and use the maximum received power And the preamble sequence set greater than the preset third threshold value is used as the preamble sequence set corresponding to the first random sequence. Then, the network device may use the preamble ID of the preamble sequence set corresponding to the first random sequence as the preamble ID corresponding to the first preamble sequence. That is, the preamble ID of the preamble sequence set with the maximum received power and greater than the preset third threshold value is used as the preamble ID corresponding to the first preamble sequence.

网络设备在确定了X个第一preamble序列对应的preamble ID之后的处理流程可以参见步骤S106的描述,对此不再赘述。For the processing flow after the network device determines the preamble IDs corresponding to the X first preamble sequences, reference may be made to the description of step S106, which will not be repeated here.

第三种方式:继续参照图3C,终端设备可以将第一preamble ID对应的第一preamble序列集合中的每一个preamble序列子集中的每一个preamble序列作为一个第一preamble序列。即上述X个第一随机接入序列中的X可以等于M与Y的乘积。在该实现方式下,X个第一preamble序列中可以存在相同的第一preamble序列,或者,X个第一preamble序列中任意两个preamble序列均不相同,具体可以根据第一preamble序列集合中所包括的M个preamble序列子集是否相同确定。The third way: Continuing to refer to FIG. 3C , the terminal device may use each preamble sequence in each preamble sequence subset in the first preamble sequence set corresponding to the first preamble ID as a first preamble sequence. That is, X in the above-mentioned X first random access sequences may be equal to the product of M and Y. In this implementation manner, the same first preamble sequence may exist in the X first preamble sequences, or any two preamble sequences in the X first preamble sequences are different. It is determined whether the included M preamble sequence subsets are the same.

终端设备在生成X个第一preamble序列之后,可以对该X个第一preamble序列中使用同一preamble序列子集中的preamble序列生成的第一preamble序列,分别进行子载波映射。然后,终端设备可以将X个第一preamble序列进行离散傅里叶逆变换、插入循环前缀等处理。可选的,若第一preamble序列为时域序列,则在对同一preamble序列子集中的preamble序列生成的第一preamble序列进行子载波映射之前还需要对每个第一preamble序列分别执行离散傅里叶变换。若第一preamble序列为频域序列,则在对同一preamble序列子集中的preamble序列生成的第一preamble序列进行子载波映射之前,不需要对每个第一preamble序列分别执行离散傅里叶变换。相应地,若终端设备所使用的preamble序列格式为“将X个第一preamble序列重复多次”,则终端设备在对X个第一preamble序列进行离散傅里叶逆变换之后,还需根据preamble序列格式,对X个第一preamble序列进行重复处理。需要说明的是,终端设备如何对第一preamble序列进行离散傅里叶变换、子载波映射、离散傅里叶逆变换、重复处理、插入循环前缀等,可以参见现有技术,对此不再赘述。After generating the X first preamble sequences, the terminal device may perform subcarrier mapping respectively on the first preamble sequences generated by using the preamble sequences in the same preamble sequence subset in the X first preamble sequences. Then, the terminal device may perform inverse discrete Fourier transform on the X first preamble sequences, insert a cyclic prefix, and the like. Optionally, if the first preamble sequence is a time-domain sequence, it is also necessary to perform discrete Fourier on each first preamble sequence before subcarrier mapping is performed on the first preamble sequence generated by the preamble sequences in the same preamble sequence subset. Leaf transformation. If the first preamble sequence is a frequency domain sequence, before performing subcarrier mapping on the first preamble sequence generated by the preamble sequences in the same preamble sequence subset, it is not necessary to perform discrete Fourier transform on each first preamble sequence. Correspondingly, if the format of the preamble sequence used by the terminal device is "repeat the X first preamble sequences multiple times", then the terminal device needs to perform inverse discrete Fourier transform on the X first preamble sequences according to the preamble sequence. Sequence format, repeat processing for X first preamble sequences. It should be noted that how the terminal device performs discrete Fourier transform, sub-carrier mapping, inverse discrete Fourier transform, repeated processing, and cyclic prefix insertion on the first preamble sequence can be referred to in the prior art, which will not be repeated here. .

终端设备在对X个第一preamble序列进行上述处理后,可以将该X个第一preamble序列映射在第四时频资源上发送给网络设备。这里所说的第四时频资源包括:M个允许发送第一preamble序列的时域资源和Y个允许发送第一preamble序列的频域资源。其中,使用同一preamble序列子集中的preamble序列生成的第一preamble序列映射在同一时域资源的不同频域资源上。例如,终端设备可以将使用同一preamble序列子集中的preamble序列生成的第一preamble序列映射在Y个RACH频域资源上,生成M个preamble符号(symbol)。然后,终端设备可以将该M个preamble symbol在M个RACH时频symbol上发送。After performing the above processing on the X first preamble sequences, the terminal device may map the X first preamble sequences on the fourth time-frequency resource and send it to the network device. The fourth time-frequency resources mentioned here include: M time-domain resources allowed to send the first preamble sequence and Y frequency-domain resources allowed to send the first preamble sequence. Wherein, the first preamble sequence generated by using the preamble sequences in the same preamble sequence subset is mapped on different frequency domain resources of the same time domain resource. For example, the terminal device may map the first preamble sequence generated by using the preamble sequences in the same preamble sequence subset on the Y RACH frequency domain resources to generate M preamble symbols (symbols). Then, the terminal device may send the M preamble symbols on the M RACH time-frequency symbols.

由于各preamble序列集合之间至少有一个preamble序列子集不同,因此,即便沿用LTE通信系统中一个小区使用64个ZC序列生成preamble序列集合的方式,那么通过该64个ZC序列生成的preamble序列集合的数量大于64个。因此,通过1个preamble ID对应Y个preamble序列,使得多个终端设备使用同一preamble序列集合生成的请求接入待接入小区的preamble序列的概率会降低,即可以降低多个终端设备同时使用相同的preamble序列请求接入小区的概率(即降低随机接入碰撞概率),从而可以提高小区的RACH容量。Since at least one preamble sequence subset is different between each preamble sequence set, even if a cell in the LTE communication system uses 64 ZC sequences to generate a preamble sequence set, then the preamble sequence set generated by the 64 ZC sequences is used. The number is greater than 64. Therefore, through 1 preamble ID corresponding to Y preamble sequences, the probability of requesting access to the preamble sequence of the cell to be accessed by multiple terminal devices using the same set of preamble sequences will be reduced, that is, it can be reduced that multiple terminal devices use the same preamble sequence at the same time. The probability of requesting access to the cell by the preamble sequence (that is, reducing the probability of random access collision), so that the RACH capacity of the cell can be improved.

另外,由于终端设备需要占用M个时域资源发送X个第一preamble序列,因此,在将M个时域资源的长度与LTE通信系统下终端设备发送preamble序列的时域资源的长度保持相同时,相比LTE通信系统中终端设备发送preamble序列时所使用的子载波间隔,本实施例中终端设备需要增大发送第一preamble序列时所使用的子载波间隔,即减少第一preamble序列的长度。例如,每个第一preamble序列的长度为LTE通信系统中的preamble序列的M分之一。也就是说,本实施例中,网络设备在生成preamble序列集合时,可以使用长度等于LTE通信系统中的ZC根序列长度的M分之一的ZC根序列,以使得终端设备基于第一preamble ID对应的第一preamble序列集合所生成的M个第一preamble序列中的每个第一preamble序列的长度均为LTE通信系统中的preamble序列的M分之一。通过这种方式,可以使得终端设备所发送的M个第一preamble序列抗频偏性能较好。In addition, since the terminal device needs to occupy M time domain resources to send X first preamble sequences, when the length of the M time domain resources is kept the same as the length of the time domain resources for the terminal device to send the preamble sequence under the LTE communication system , compared with the subcarrier spacing used when the terminal device sends the preamble sequence in the LTE communication system, in this embodiment, the terminal device needs to increase the subcarrier spacing used when sending the first preamble sequence, that is, reduce the length of the first preamble sequence . For example, the length of each first preamble sequence is M/M of the preamble sequence in the LTE communication system. That is to say, in this embodiment, when generating the preamble sequence set, the network device may use a ZC root sequence whose length is equal to one M of the length of the ZC root sequence in the LTE communication system, so that the terminal device is based on the first preamble ID. The length of each first preamble sequence in the M first preamble sequences generated by the corresponding first preamble sequence set is 1/M of the length of the preamble sequence in the LTE communication system. In this way, the anti-frequency offset performance of the M first preamble sequences sent by the terminal device can be better.

当终端设备在第四时频资源上向网络设备发送上述X个第一preamble序列时,网络设备可以在第四时频资源上检测终端设备发送的X个第一随机接入序列。例如,网络设备可以采用图3D所示的方式,检测在每个时域的每个频域上接收到的第一preamble序列对应的至少一个preamble序列。When the terminal device sends the above-mentioned X first preamble sequences to the network device on the fourth time-frequency resource, the network device may detect the X first random access sequences sent by the terminal device on the fourth time-frequency resource. For example, the network device may use the manner shown in FIG. 3D to detect at least one preamble sequence corresponding to the first preamble sequence received in each frequency domain of each time domain.

然后,网络设备可以对同一时域的Y个频域上的第一preamble序列对应的至少Y个preamble序列进行非相干合并,以将接收功率最大且大于预设第二门限值的preamble序列子集作为该时域上Y个第一preamble序列对应的至少一个preamble序列子集。Then, the network device may non-coherently combine at least Y preamble sequences corresponding to the first preamble sequences in Y frequency domains in the same time domain, so as to combine the preamble sequences with the maximum received power and greater than the preset second threshold into sub-groups. The set is used as at least one preamble sequence subset corresponding to the Y first preamble sequences in the time domain.

最后,网络设备可以对M个时域上的至少M个preamble序列子集进行非相干合并,以将接收功率最大且大于预设第三门限值的preamble序列集合作为第一随机序列对应的preamble序列集合。然后,网络设备可以将第一随机序列对应的preamble序列集合的preamble ID,作为第一preamble序列对应的preamble ID。即将接收功率最大且大于预设第三门限值的preamble序列集合的preamble ID,作为第一preamble序列对应的preambleID。Finally, the network device may perform non-coherent combining of at least M preamble sequence subsets in the M time domains, so as to use the preamble sequence set with the maximum received power and greater than the preset third threshold value as the preamble corresponding to the first random sequence Sequence collection. Then, the network device may use the preamble ID of the preamble sequence set corresponding to the first random sequence as the preamble ID corresponding to the first preamble sequence. That is, the preamble ID of the preamble sequence set with the maximum received power and greater than the preset third threshold value is used as the preamble ID corresponding to the first preamble sequence.

网络设备在确定了X个第一preamble序列对应的preamble ID之后的处理流程可以参见步骤S106的描述,对此不再赘述。For the processing flow after the network device determines the preamble IDs corresponding to the X first preamble sequences, reference may be made to the description of step S106, which will not be repeated here.

第三种结构:preamble序列集合组中的每个preamble序列集合包括M个preamble序列子集,每个preamble序列子集包括K个preamble序列组,每个preamble序列组包括Q个preamble序列,M,K和Q均为正整数。各preamble序列集合之间至少有一个preamble序列组不同。一个preamble序列集合中包括的M个preamble序列子集可以相同,也可以不同。每个preamble序列子集包括的K个preamble序列组可以相同,也可以不同。也就是说,第一preamble序列集合包括M个preamble序列子集,每个preamble序列子集包括K个preamble序列组,每个preamble序列组包括Q个preamble序列。在该场景下,每个第一preamble序列为根据一个preamble序列组得到的preamble序列。The third structure: each preamble sequence set in the preamble sequence set group includes M preamble sequence subsets, each preamble sequence subset includes K preamble sequence groups, and each preamble sequence group includes Q preamble sequences, M, Both K and Q are positive integers. At least one preamble sequence group is different between each preamble sequence set. The M preamble sequence subsets included in a preamble sequence set may be the same or different. The K preamble sequence groups included in each preamble sequence subset may be the same or different. That is to say, the first preamble sequence set includes M preamble sequence subsets, each preamble sequence subset includes K preamble sequence groups, and each preamble sequence group includes Q preamble sequences. In this scenario, each first preamble sequence is a preamble sequence obtained according to a preamble sequence group.

以第一preamble序列集合为例,第一preamble序列集合例如可以如表3所示:Taking the first preamble sequence set as an example, the first preamble sequence set can be shown in Table 3, for example:

表3table 3

在该场景下,上述网络设备广播preamble序列集合组配置信息还可以包括M的取值、K的取值,以及,Q的取值。In this scenario, the above-mentioned network device broadcast preamble sequence set group configuration information may further include the value of M, the value of K, and the value of Q.

其中,每个preamble序列组所包括的Q个preamble序列中的每个preamble序列为一个ZC序列。即,每个preamble序列组包括Q个ZC序列。该Q个ZC序列可以是相同的ZC序列,也可以是有至少一个不同的ZC序列,还可以是全部不同的ZC序列。当preamble序列组包括不同的ZC序列时,这些不同的ZC序列可以是由同一个ZC根序列生成的序列。即,从单个ZC根序列产生的循环移位序列组中随机选择的不同ZC序列。在该实现方式下,这些不同的ZC序列中的任意两个ZC序列均为正交序列。或者,这些不同的ZC序列可以是由多个ZC根序列生成的序列。即,从多个ZC根序列产生的循环移位序列组中随机选择的不同ZC序列。在该实现方式下,这些不同的ZC序列中的任意两个preamble序列均为准正交序列。Wherein, each preamble sequence in the Q preamble sequences included in each preamble sequence group is a ZC sequence. That is, each preamble sequence group includes Q ZC sequences. The Q ZC sequences may be the same ZC sequence, at least one different ZC sequence, or all different ZC sequences. When the preamble sequence group includes different ZC sequences, these different ZC sequences may be sequences generated from the same ZC root sequence. That is, different ZC sequences randomly selected from the group of cyclically shifted sequences generated from a single ZC root sequence. In this implementation manner, any two ZC sequences in these different ZC sequences are orthogonal sequences. Alternatively, these different ZC sequences can be sequences generated from multiple ZC root sequences. That is, different ZC sequences randomly selected from the group of cyclically shifted sequences generated from multiple ZC root sequences. In this implementation manner, any two preamble sequences in these different ZC sequences are quasi-orthogonal sequences.

在第一preamble序列集合如表3所示时,上述终端设备可以通过将第一preamble序列集合中的每一个preamble序列组中的Q个preamble序列相加的方式,生成一个第一preamble序列。即上述X个第一随机接入序列中的X可以等于M与K的乘积。在该实现方式下,X个第一preamble序列中可以存在相同的第一preamble序列,或者,X个第一preamble序列中任意两个preamble序列均不相同,具体可以根据第一preamble序列集合中所包括的M个preamble序列子集中的K个集合组是否相同确定。When the first preamble sequence set is shown in Table 3, the above-mentioned terminal device may generate a first preamble sequence by adding Q preamble sequences in each preamble sequence group in the first preamble sequence set. That is, X in the above-mentioned X first random access sequences may be equal to the product of M and K. In this implementation manner, the same first preamble sequence may exist in the X first preamble sequences, or any two preamble sequences in the X first preamble sequences are different. It is determined whether the K set groups in the included M preamble sequence subsets are the same.

终端设备在生成X个第一preamble序列之后,可以对该X个第一preamble序列中使用同一preamble序列子集中的preamble序列组中的preamble序列生成的第一preamble序列,分别进行子载波映射。然后,终端设备可以将X个第一preamble序列进行离散傅里叶逆变换、插入循环前缀等处理。可选的,若第一preamble序列为时域序列,则在对同一preamble序列子集中的K个preamble序列组生成的第一preamble序列进行子载波映射之前,还需要对每个第一preamble序列分别执行离散傅里叶变换。若第一preamble序列为频域序列,则在对同一preamble序列子集中的K个preamble序列组生成的第一preamble序列进行子载波映射之前,不需要对每个第一preamble序列分别执行离散傅里叶变换。相应地,若终端设备所使用的preamble序列格式为“将X个第一preamble序列重复多次”,则终端设备在对X个第一preamble序列进行离散傅里叶逆变换之后,还需根据preamble序列格式,对X个第一preamble序列进行重复处理。需要说明的是,终端设备如何对第一preamble序列进行离散傅里叶变换、子载波映射、离散傅里叶逆变换、重复处理、插入循环前缀等,可以参见现有技术,对此不再赘述。After generating the X first preamble sequences, the terminal device may perform subcarrier mapping respectively on the X first preamble sequences using the first preamble sequences generated by the preamble sequences in the preamble sequence group in the same preamble sequence subset. Then, the terminal device may perform inverse discrete Fourier transform on the X first preamble sequences, insert a cyclic prefix, and the like. Optionally, if the first preamble sequence is a time domain sequence, before subcarrier mapping is performed on the first preamble sequence generated by the K preamble sequence groups in the same preamble sequence subset, each first preamble sequence needs to be separately mapped. Perform a discrete Fourier transform. If the first preamble sequence is a frequency-domain sequence, it is not necessary to perform discrete Fourier on each first preamble sequence before performing subcarrier mapping on the first preamble sequence generated by K preamble sequence groups in the same preamble sequence subset Leaf transformation. Correspondingly, if the format of the preamble sequence used by the terminal device is "repeat the X first preamble sequences multiple times", then the terminal device needs to perform inverse discrete Fourier transform on the X first preamble sequences according to the preamble sequence. Sequence format, repeat processing for X first preamble sequences. It should be noted that how the terminal device performs discrete Fourier transform, sub-carrier mapping, inverse discrete Fourier transform, repeated processing, and cyclic prefix insertion on the first preamble sequence can be referred to in the prior art, which will not be repeated here. .

终端设备在对X个第一preamble序列进行上述处理后,可以将该X个第一preamble序列映射在第五时频资源上发送给网络设备。这里所说的第五时频资源包括:M个允许发送第一preamble序列的时域资源和K个允许发送第一preamble序列的频域资源。其中,使用同一preamble序列子集中的preamble序列组生成的第一preamble序列映射在同一时域资源的不同频域资源上。例如,终端设备可以将使用同一preamble序列子集中的preamble序列组生成的第一preamble序列映射在K个RACH频域资源上,生成M个preamble符号(symbol)。然后,终端设备可以将该M个preamble symbol在M个RACH时频symbol上发送。After performing the above processing on the X first preamble sequences, the terminal device may map the X first preamble sequences on the fifth time-frequency resource and send it to the network device. The fifth time-frequency resources mentioned here include: M time-domain resources allowed to send the first preamble sequence and K frequency-domain resources allowed to send the first preamble sequence. Wherein, the first preamble sequence generated by using the preamble sequence group in the same preamble sequence subset is mapped on different frequency domain resources of the same time domain resource. For example, the terminal device may map the first preamble sequence generated by using the preamble sequence group in the same preamble sequence subset on the K RACH frequency domain resources to generate M preamble symbols (symbols). Then, the terminal device may send the M preamble symbols on the M RACH time-frequency symbols.

由于各preamble序列集合之间至少有一个preamble序列子集不同,因此,即便沿用LTE通信系统中一个小区使用64个ZC序列生成preamble序列集合的方式,那么通过该64个ZC序列生成的preamble序列集合的数量大于64个。因此,通过1个preamble ID对应K乘以Q个preamble序列,使得多个终端设备使用同一preamble序列集合生成的请求接入待接入小区的preamble序列的概率会大大降低,即可以降低多个终端设备同时使用相同的preamble序列请求接入小区的概率(即降低随机接入碰撞概率),从而可以提高小区的RACH容量。Since at least one preamble sequence subset is different between each preamble sequence set, even if a cell in the LTE communication system uses 64 ZC sequences to generate a preamble sequence set, then the preamble sequence set generated by the 64 ZC sequences is used. The number is greater than 64. Therefore, by multiplying K by 1 preamble ID corresponding to Q preamble sequences, the probability of requesting access to the preamble sequence of the cell to be accessed by multiple terminal devices using the same set of preamble sequences will be greatly reduced, that is, multiple terminals can be reduced. At the same time, the device uses the same preamble sequence to request the probability of accessing the cell (that is, reducing the probability of random access collision), so that the RACH capacity of the cell can be improved.

另外,由于终端设备需要占用M个时域资源发送X个第一preamble序列,因此,在将M个时域资源的长度与LTE通信系统下终端设备发送preamble序列的时域资源的长度保持相同时,相比LTE通信系统中终端设备发送preamble序列时所使用的子载波间隔,本实施例中终端设备需要增大发送第一preamble序列时所使用的子载波间隔,即减少第一preamble序列的长度。例如,每个第一preamble序列的长度为LTE通信系统中的preamble序列的M分之一。也就是说,本实施例中,网络设备在生成preamble序列集合时,可以使用长度等于LTE通信系统中的ZC根序列长度的M分之一的ZC根序列,以使得终端设备基于第一preamble ID对应的第一preamble序列集合所生成的M个第一preamble序列中的每个第一preamble序列的长度均为LTE通信系统中的preamble序列的M分之一。通过这种方式,可以使得终端设备所发送的M个第一preamble序列抗频偏性能较好。In addition, since the terminal device needs to occupy M time domain resources to send X first preamble sequences, when the length of the M time domain resources is kept the same as the length of the time domain resources for the terminal device to send the preamble sequence under the LTE communication system , compared with the subcarrier spacing used when the terminal device sends the preamble sequence in the LTE communication system, in this embodiment, the terminal device needs to increase the subcarrier spacing used when sending the first preamble sequence, that is, reduce the length of the first preamble sequence . For example, the length of each first preamble sequence is M/M of the preamble sequence in the LTE communication system. That is to say, in this embodiment, when generating the preamble sequence set, the network device may use a ZC root sequence whose length is equal to one M of the length of the ZC root sequence in the LTE communication system, so that the terminal device is based on the first preamble ID. The length of each first preamble sequence in the M first preamble sequences generated by the corresponding first preamble sequence set is 1/M of the length of the preamble sequence in the LTE communication system. In this way, the anti-frequency offset performance of the M first preamble sequences sent by the terminal device can be better.

当终端设备在第五时频资源上向网络设备发送上述X个第一preamble序列时,网络设备可以在第五时频资源上检测终端设备发送的X个第一随机接入序列。例如,网络设备可以采用图3D所示的方式,检测在每个时域的每个频域上接收到的第一preamble序列对应的至少一个preamble序列组。When the terminal device sends the above-mentioned X first preamble sequences to the network device on the fifth time-frequency resource, the network device may detect the X first random access sequences sent by the terminal device on the fifth time-frequency resource. For example, the network device may use the manner shown in FIG. 3D to detect at least one preamble sequence group corresponding to the first preamble sequence received in each frequency domain of each time domain.

然后,网络设备可以对同一时域的Y个频域上的第一preamble序列对应的至少Y个preamble序列组进行非相干合并,以将接收功率最大且大于预设第二门限值的preamble序列子集作为该时域上Y个第一preamble序列对应的至少一个preamble序列子集。Then, the network device may non-coherently combine at least Y preamble sequence groups corresponding to the first preamble sequences in Y frequency domains in the same time domain, so as to combine the preamble sequences with the maximum received power and greater than the preset second threshold value The subset is used as at least one preamble sequence subset corresponding to the Y first preamble sequences in the time domain.

最后,网络设备可以对M个时域上的至少M个preamble序列子集进行非相干合并,以将接收功率最大且大于预设第三门限值的preamble序列集合作为第一随机序列对应的preamble序列集合。然后,网络设备可以将第一随机序列对应的preamble序列集合的preamble ID,作为第一preamble序列对应的preamble ID。即将接收功率最大且大于预设第三门限值的preamble序列集合的preamble ID,作为第一preamble序列对应的preambleID。Finally, the network device may perform non-coherent combining of at least M preamble sequence subsets in the M time domains, so as to use the preamble sequence set with the maximum received power and greater than the preset third threshold value as the preamble corresponding to the first random sequence Sequence collection. Then, the network device may use the preamble ID of the preamble sequence set corresponding to the first random sequence as the preamble ID corresponding to the first preamble sequence. That is, the preamble ID of the preamble sequence set with the maximum received power and greater than the preset third threshold value is used as the preamble ID corresponding to the first preamble sequence.

网络设备在确定了X个第一preamble序列对应的preamble ID之后的处理流程可以参见步骤S106的描述,对此不再赘述。For the processing flow after the network device determines the preamble IDs corresponding to the X first preamble sequences, reference may be made to the description of step S106, which will not be repeated here.

本申请实施例提供的随机接入方法,通过将一个preamble ID对应一个preamble序列集合中的J个preamble序列的方式,可以使终端设备依据第一preamble ID对应的第一preamble序列集合得到X个第一preamble序列灵活多样。因此,当终端设备采用上述方式生成请求接入待接入小区的preamble序列时,可以降低多个终端设备同时使用相同的preamble序列请求接入小区的概率(即降低随机接入碰撞概率),从而可以提高小区的RACH容量。In the random access method provided by the embodiment of the present application, by corresponding one preamble ID to J preamble sequences in a preamble sequence set, the terminal device can obtain X number of preamble sequences according to the first preamble sequence set corresponding to the first preamble ID A preamble sequence is flexible and diverse. Therefore, when a terminal device uses the above method to generate a preamble sequence for requesting access to a cell to be accessed, the probability that multiple terminal devices use the same preamble sequence to request access to a cell at the same time can be reduced (that is, the probability of random access collision is reduced), thereby reducing the probability of a random access collision. The RACH capacity of the cell can be improved.

图5为本申请实施例提供的一种终端设备的结构示意图。如图5所示,该终端设备可以包括:处理模块11和发送模块12。其中,FIG. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present application. As shown in FIG. 5 , the terminal device may include: a processing module 11 and a sending module 12 . in,

处理模块11,用于获取第一随机接入标识,并在随机接入序列集合组中选择第一随机接入标识对应的第一随机接入序列集合,随机接入序列集合组包括L个随机接入序列集合,每个随机接入序列集合包括J个随机接入序列,L和J均为正整数、且J大于等于2;The processing module 11 is configured to obtain a first random access identifier, and select a first random access sequence set corresponding to the first random access identifier from the random access sequence set group, where the random access sequence set group includes L random access sequence sets. an access sequence set, each random access sequence set includes J random access sequences, L and J are both positive integers, and J is greater than or equal to 2;

发送模块12,用于向网络设备发送X个第一随机接入序列,X为正整数。The sending module 12 is configured to send X first random access sequences to the network device, where X is a positive integer.

其中,上述所说的每个第一随机接入序列为根据第一随机接入序列集合得到的随机接入序列。Wherein, each of the above-mentioned first random access sequences is a random access sequence obtained according to the first set of random access sequences.

在一种实现方式中,X等于1,第一随机接入序列为:第一随机接入序列集合中的J个随机接入序列相加生成的随机接入序列。其中,J个随机接入序列为正交ZC序列或准正交ZC序列,该J个随机接入序列的发送功率可以相同。在该实现方式下,发送模块12,具体用于将第一随机接入序列映射在第一时频资源上发送给网络设备,第一时频资源包括:1个允许发送第一随机接入序列的时域资源和1个允许发送第一随机接入序列的频域资源。In an implementation manner, X is equal to 1, and the first random access sequence is: a random access sequence generated by adding J random access sequences in the first random access sequence set. The J random access sequences are orthogonal ZC sequences or quasi-orthogonal ZC sequences, and the transmit powers of the J random access sequences may be the same. In this implementation manner, the sending module 12 is specifically configured to map the first random access sequence on the first time-frequency resource and send it to the network device, where the first time-frequency resource includes: 1 allowing the sending of the first random access sequence time domain resources and 1 frequency domain resource that is allowed to send the first random access sequence.

在另一种实现方式中,X等于J,每个第一随机接入序列为:第一随机接入序列集合中的一个随机接入序列。发送模块,具体用于将X个第一随机接入序列映射在第二时频资源上发送给网络设备,第二时频资源包括:1个允许发送第一随机接入序列的时域资源和X个允许发送第一随机接入序列的频域资源。In another implementation manner, X is equal to J, and each first random access sequence is: a random access sequence in the first random access sequence set. The sending module is specifically configured to map the X first random access sequences on the second time-frequency resources and send them to the network device, where the second time-frequency resources include: 1 time domain resource that allows sending the first random access sequence and X number of frequency domain resources allowed to transmit the first random access sequence.

在另一种实现方式中,第一随机接入序列集合包括M个随机接入序列子集,每个随机接入序列子集包括Y个随机接入序列,M和Y均为正整数;每个第一随机接入序列为根据一个随机接入序列子集得到的随机接入序列。In another implementation manner, the first random access sequence set includes M random access sequence subsets, each random access sequence subset includes Y random access sequences, and M and Y are both positive integers; The first random access sequence is a random access sequence obtained according to a random access sequence subset.

在该实现方式下,X可以等于M,每个第一随机接入序列为:一个随机接入序列子集中的Y个随机接入序列相加生成的随机接入序列。其中,Y个随机接入序列为正交ZC序列或准正交ZC序列,该Y个随机接入序列的发送功率可以相同。发送模块12,具体用于将X个第一随机接入序列映射在第三时频资源上发送给网络设备,第三时频资源包括:M个允许发送第一随机接入序列的时域资源和1个允许发送第一随机接入序列的频域资源;或者,第三时频资源包括:1个允许发送第一随机接入序列的时域资源和M个允许发送第一随机接入序列的频域资源。或者,X可以等于Y与M的乘积,每个第一随机接入序列为:一个随机接入序列子集中的一个随机接入序列。发送模块12,具体用于将X个第一随机接入序列映射在第四时频资源上发送给网络设备,第四时频资源包括:M个允许发送第一随机接入序列的时域资源和Y个允许发送第一随机接入序列的频域资源。In this implementation manner, X may be equal to M, and each first random access sequence is: a random access sequence generated by adding Y random access sequences in a random access sequence subset. The Y random access sequences are orthogonal ZC sequences or quasi-orthogonal ZC sequences, and the transmit powers of the Y random access sequences may be the same. The sending module 12 is specifically configured to map the X first random access sequences on a third time-frequency resource and send it to the network device, where the third time-frequency resource includes: M time-domain resources that allow sending the first random access sequence and 1 frequency domain resource allowed to send the first random access sequence; or, the third time-frequency resource includes: 1 time domain resource allowed to send the first random access sequence and M allowed to send the first random access sequence frequency domain resources. Alternatively, X may be equal to the product of Y and M, and each first random access sequence is: a random access sequence in a subset of random access sequences. The sending module 12 is specifically configured to map the X first random access sequences on a fourth time-frequency resource and send it to the network device, where the fourth time-frequency resource includes: M time-domain resources that allow sending the first random access sequence and Y frequency domain resources that are allowed to transmit the first random access sequence.

在另一种实现方式中,第一随机接入序列集合包括M个随机接入序列子集,每个随机接入序列子集包括K个随机接入序列组,每个随机接入序列组包括Q个随机接入序列,其中,M,K和Q均为正整数;每个第一随机接入序列为根据一个随机接入序列组得到的随机接入序列。In another implementation manner, the first random access sequence set includes M random access sequence subsets, each random access sequence subset includes K random access sequence groups, and each random access sequence group includes Q random access sequences, where M, K and Q are all positive integers; each first random access sequence is a random access sequence obtained according to a random access sequence group.

在该实现方式下,X可以等于M与K的乘积,每个第一随机接入序列为:一个随机接入序列组中的Q个随机接入序列相加生成的随机接入序列。其中,Q个随机接入序列为正交ZC序列或准正交ZC序列,该Q个随机接入序列的发送功率可以相同。发送模块12,具体用于将X个第一随机接入序列映射在第五时频资源上发送给网络设备,第五时频资源包括:M个允许发送第一随机接入序列的时域资源和K个允许发送第一随机接入序列的频域资源。In this implementation manner, X may be equal to the product of M and K, and each first random access sequence is: a random access sequence generated by adding Q random access sequences in a random access sequence group. The Q random access sequences are orthogonal ZC sequences or quasi-orthogonal ZC sequences, and the transmit powers of the Q random access sequences may be the same. The sending module 12 is specifically configured to map the X first random access sequences on the fifth time-frequency resource and send it to the network device, where the fifth time-frequency resource includes: M time-domain resources that are allowed to send the first random access sequence and K frequency domain resources that are allowed to transmit the first random access sequence.

本申请实施例提供的终端设备,可以执行上述方法实施例中终端设备侧的动作,其实现原理和技术效果类似,在此不再赘述。The terminal device provided in the embodiments of the present application can perform the actions on the terminal device side in the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.

图6为本申请实施例提供的一种网络设备的结构示意图。如图6所示,该网络设备可以包括:发送模块21、接收模块22和处理模块23。其中,FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present application. As shown in FIG. 6 , the network device may include: a sending module 21 , a receiving module 22 and a processing module 23 . in,

发送模块21,用于广播随机接入序列集合组配置信息,随机接入序列集合组包括L个随机接入序列集合,每个随机接入序列集合包括J个随机接入序列,L和J均为正整数、且J大于等于2;The sending module 21 is used for broadcasting random access sequence set group configuration information, the random access sequence set group includes L random access sequence sets, each random access sequence set includes J random access sequences, L and J are both is a positive integer, and J is greater than or equal to 2;

接收模块22,用于接收终端设备发送的X个第一随机接入序列;a receiving module 22, configured to receive X first random access sequences sent by the terminal device;

处理模块23,用于检测X个第一随机接入序列,并确定X个第一随机接入序列对应的随机接入标识,X为正整数。The processing module 23 is configured to detect the X first random access sequences, and determine the random access identifiers corresponding to the X first random access sequences, where X is a positive integer.

其中,上述所说的每个第一随机接入序列为根据第一随机接入序列集合得到的随机接入序列。Wherein, each of the above-mentioned first random access sequences is a random access sequence obtained according to the first set of random access sequences.

在一种实现方式中,X等于1,第一随机接入序列为:第一随机接入序列集合中的J个随机接入序列相加生成的随机接入序列。其中,J个随机接入序列为正交ZC序列或准正交ZC序列,该J个随机接入序列的发送功率可以相同。In an implementation manner, X is equal to 1, and the first random access sequence is: a random access sequence generated by adding J random access sequences in the first random access sequence set. The J random access sequences are orthogonal ZC sequences or quasi-orthogonal ZC sequences, and the transmit powers of the J random access sequences may be the same.

在该实现方式下,处理模块23,具体用于在第一时频资源上检测X个第一随机接入序列,第一时频资源包括:1个允许发送第一随机接入序列的时域资源和1个允许发送第一随机接入序列的频域资源。例如,处理模块23,具体用于根据接收模块22在第一时频资源上接收到的X个第一随机接入序列,从随机接入序列集合组中筛选出至少一个第二随机接入序列集合,并根据至少一个第二随机接入序列集合,确定X个第一随机序列对应的随机接入序列集合。示例性的,处理模块23,具体用于对每个第二随机接入序列集合中的J个随机接入序列进行合并,将接收功率最大且大于预设门限值的第二随机接入序列集合作为X个第一随机序列对应的随机接入序列集合。In this implementation manner, the processing module 23 is specifically configured to detect X first random access sequences on the first time-frequency resource, where the first time-frequency resource includes: 1 time domain in which the first random access sequence is allowed to be sent resource and 1 frequency domain resource that is allowed to send the first random access sequence. For example, the processing module 23 is specifically configured to screen out at least one second random access sequence from the random access sequence set group according to the X first random access sequences received by the receiving module 22 on the first time-frequency resource set, and determine random access sequence sets corresponding to the X first random sequences according to at least one second random access sequence set. Exemplarily, the processing module 23 is specifically configured to combine J random access sequences in each second random access sequence set, and combine the second random access sequence with the maximum received power and greater than a preset threshold value. The set is taken as the set of random access sequences corresponding to the X first random sequences.

在一种实现方式中,X等于J,每个第一随机接入序列为:第一随机接入序列集合中的一个随机接入序列。在该实现方式下,处理模块23,具体用于在第二时频资源上检测X个第一随机接入序列,第二时频资源包括:1个允许发送第一随机接入序列的时域资源和X个允许发送第一随机接入序列的频域资源。例如,处理模块23,具体用于根据接收模块22在X个频域资源上接收到的X个第一随机接入序列,从随机接入序列集合组中筛选出至少一个第三随机接入序列集合,并根据至少一个第三随机接入序列集合,确定X个第一随机序列对应的随机接入序列集合。示例性的,处理模块23,具体用于对每个第三随机接入序列集合中的J个随机接入序列进行合并,将接收功率最大且大于预设门限值的第三随机接入序列集合作为第一随机序列对应的随机接入序列集合。In an implementation manner, X is equal to J, and each first random access sequence is: a random access sequence in the first random access sequence set. In this implementation manner, the processing module 23 is specifically configured to detect X first random access sequences on the second time-frequency resource, and the second time-frequency resource includes: 1 time domain in which the first random access sequence is allowed to be sent resources and X frequency-domain resources that are allowed to transmit the first random access sequence. For example, the processing module 23 is specifically configured to screen out at least one third random access sequence from the random access sequence set group according to the X first random access sequences received by the receiving module 22 on the X frequency domain resources set, and determine random access sequence sets corresponding to the X first random sequences according to at least one third random access sequence set. Exemplarily, the processing module 23 is specifically configured to combine the J random access sequences in each third random access sequence set, and combine the third random access sequence with the maximum received power and greater than the preset threshold value. The set is taken as the set of random access sequences corresponding to the first random sequence.

在另一种实现方式中,第一随机接入序列集合包括M个随机接入序列子集,每个随机接入序列子集包括Y个随机接入序列,M和Y均为正整数;每个第一随机接入序列为根据一个随机接入序列子集得到的随机接入序列。In another implementation manner, the first random access sequence set includes M random access sequence subsets, each random access sequence subset includes Y random access sequences, and M and Y are both positive integers; The first random access sequence is a random access sequence obtained according to a random access sequence subset.

在该实现方式下,X可以等于M,每个第一随机接入序列为:一个随机接入序列子集中的Y个随机接入序列相加生成的随机接入序列。其中,Y个随机接入序列为正交ZC序列或准正交ZC序列,该Y个随机接入序列的发送功率可以相同。处理模块23,具体用于在第三时频资源上检测X个第一随机接入序列,第三时频资源包括:M个允许发送第一随机接入序列的时域资源和1个允许发送第一随机接入序列的频域资源;或者,第三时频资源包括:1个允许发送第一随机接入序列的时域资源和M个允许发送第一随机接入序列的频域资源。In this implementation manner, X may be equal to M, and each first random access sequence is: a random access sequence generated by adding Y random access sequences in a random access sequence subset. The Y random access sequences are orthogonal ZC sequences or quasi-orthogonal ZC sequences, and the transmit powers of the Y random access sequences may be the same. The processing module 23 is specifically configured to detect X first random access sequences on a third time-frequency resource, where the third time-frequency resource includes: M time-domain resources allowed to send the first random access sequence and 1 time-domain resource allowed to send the first random access sequence The frequency domain resource of the first random access sequence; or, the third time-frequency resource includes: 1 time domain resource allowed to send the first random access sequence and M frequency domain resources allowed to send the first random access sequence.

例如,在第三时频资源包括M个允许发送第一随机接入序列的时域资源和1个允许发送第一随机接入序列的频域资源时,处理模块23,具体用于根据接收模块22在X个时域资源上接收到的X个第一随机接入序列,从随机接入序列集合组中筛选出至少X个第一随机接入序列子集;在每个时域资源上根据至少一个第一随机接入序列子集确定至少一个第二随机接入序列子集;根据在X个时域资源上确定的至少X个第二随机接入序列子集,确定X个第一随机序列对应的随机接入序列集合。示例性的,处理模块23,具体用于在每个时域资源上对每个第一随机接入序列子集中的Y个随机接入序列进行合并,将接收功率最大且大于预设门限值的第一随机接入序列子集作为第二随机接入序列子集。相应地,处理模块23,具体用于根据X个时域资源,对至少X个第二随机接入序列子集进行合并,将接收功率最大且大于预设门限值的随机接入序列集合作为X个第一随机序列对应的随机接入序列集合。For example, when the third time-frequency resource includes M time-domain resources allowed to send the first random access sequence and 1 frequency-domain resource allowed to send the first random access sequence, the processing module 23 is specifically configured to, according to the receiving module 22 For the X first random access sequences received on the X time domain resources, screen out at least X first random access sequence subsets from the random access sequence set group; At least one first random access sequence subset determines at least one second random access sequence subset; according to at least X second random access sequence subsets determined on X time domain resources, X first random access sequence subsets are determined The random access sequence set corresponding to the sequence. Exemplarily, the processing module 23 is specifically configured to combine the Y random access sequences in each first random access sequence subset on each time domain resource, and make the received power maximum and greater than the preset threshold value. The first random access sequence subset is used as the second random access sequence subset. Correspondingly, the processing module 23 is specifically configured to combine at least X second random access sequence subsets according to the X time domain resources, and use the random access sequence set with the maximum received power and greater than the preset threshold value as the set of random access sequences. A set of random access sequences corresponding to the X first random sequences.

例如,X等于Y与M的乘积,每个第一随机接入序列为:一个随机接入序列子集中的一个随机接入序列。处理模块23,具体用于在第四时频资源上检测X个第一随机接入序列,第四时频资源包括:M个允许发送第一随机接入序列的时域资源和Y个允许发送第一随机接入序列的频域资源。For example, X is equal to the product of Y and M, and each first random access sequence is: a random access sequence in a subset of random access sequences. The processing module 23 is specifically configured to detect X first random access sequences on a fourth time-frequency resource, where the fourth time-frequency resource includes: M time-domain resources allowed to send the first random access sequence and Y allowed to send Frequency domain resources of the first random access sequence.

在另一种实现方式中,第一随机接入序列集合包括M个随机接入序列子集,每个随机接入序列子集包括K个随机接入序列组,每个随机接入序列组包括Q个随机接入序列,其中,M,K和Q均为正整数;每个第一随机接入序列为根据一个随机接入序列组得到的随机接入序列。In another implementation manner, the first random access sequence set includes M random access sequence subsets, each random access sequence subset includes K random access sequence groups, and each random access sequence group includes Q random access sequences, where M, K and Q are all positive integers; each first random access sequence is a random access sequence obtained according to a random access sequence group.

在该实现方式下,X等于M与K的乘积,每个第一随机接入序列为:一个随机接入序列组中的Q个随机接入序列相加生成的随机接入序列。其中,Q个随机接入序列为正交ZC序列或准正交ZC序列,该Q个随机接入序列的发送功率可以相同。处理模块23,具体用于在第五时频资源上检测X个第一随机接入序列,第五时频资源包括:M个允许发送第一随机接入序列的时域资源和K个允许发送第一随机接入序列的频域资源。In this implementation manner, X is equal to the product of M and K, and each first random access sequence is: a random access sequence generated by adding Q random access sequences in a random access sequence group. The Q random access sequences are orthogonal ZC sequences or quasi-orthogonal ZC sequences, and the transmit powers of the Q random access sequences may be the same. The processing module 23 is specifically configured to detect X first random access sequences on the fifth time-frequency resource, where the fifth time-frequency resource includes: M time-domain resources allowed to send the first random access sequence and K allowed to send Frequency domain resources of the first random access sequence.

可选的,在上述每个实现方式中,处理模块23,具体用于将X个第一随机接入序列对应的随机接入序列集合的随机接入标识,作为X个第一随机接入序列对应的随机接入标识。Optionally, in each of the above implementation manners, the processing module 23 is specifically configured to use the random access identifiers of the random access sequence sets corresponding to the X first random access sequences as the X first random access sequences. The corresponding random access identifier.

本申请实施例提供的网络设备,可以执行上述方法实施例中网络设备侧的动作,其实现原理和技术效果类似,在此不再赘述。The network device provided in the embodiments of the present application can perform the actions on the network device side in the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.

需要说明的是,应理解以上发送模块实际实现时可以为发送器,接收模块实际实现时可以为接收器。而处理模块可以以软件通过处理元件调用的形式实现;也可以以硬件的形式实现。例如,处理模块可以为单独设立的处理元件,也可以集成在上述设备的某一个芯片中实现,此外,也可以以程序代码的形式存储于上述设备的存储器中,由上述设备的某一个处理元件调用并执行以上处理模块的功能。此外这些模块全部或部分可以集成在一起,也可以独立实现。这里所述的处理元件可以是一种集成电路,具有信号的处理能力。在实现过程中,上述方法的各步骤或以上各个模块可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。It should be noted that, it should be understood that the above sending module may be a transmitter when actually implemented, and the receiving module may be a receiver when actually implemented. The processing module can be implemented in the form of software calling through processing elements; it can also be implemented in the form of hardware. For example, the processing module may be a separately established processing element, or it may be integrated into a certain chip of the above-mentioned device, and it may also be stored in the memory of the above-mentioned device in the form of program code, and a certain processing element of the above-mentioned device Call and execute the function of the above processing module. In addition, all or part of these modules can be integrated together, and can also be implemented independently. The processing element described here may be an integrated circuit with signal processing capability. In the implementation process, each step of the above-mentioned method or each of the above-mentioned modules can be completed by an integrated logic circuit of hardware in the processor element or an instruction in the form of software.

例如,以上这些模块可以是被配置成实施以上方法的一个或多个集成电路,例如:一个或多个专用集成电路(application specific integrated circuit,ASIC),或,一个或多个微处理器(digital signal processor,DSP),或,一个或者多个现场可编程门阵列(field programmable gate array,FPGA)等。再如,当以上某个模块通过处理元件调度程序代码的形式实现时,该处理元件可以是通用处理器,例如中央处理器(centralprocessing unit,CPU)或其它可以调用程序代码的处理器。再如,这些模块可以集成在一起,以片上系统(system-on-a-chip,SOC)的形式实现。For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more application specific integrated circuits (ASIC), or one or more digital microprocessors (digital) signal processor, DSP), or, one or more field programmable gate array (field programmable gate array, FPGA) and so on. For another example, when one of the above modules is implemented in the form of a processing element scheduling program code, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processors that can invoke program codes. For another example, these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).

图7为本申请提供的另一种终端设备的结构示意图。如图7所示,该终端设备可以包括:处理器31(例如CPU)、存储器32、发送器34;发送器34耦合至处理器31,处理器31控制发送器34的发送动作;存储器32可能包含高速随机存取存储器(random-access memory,RAM),也可能还包括非易失性存储器(non-volatile memory,NVM),例如至少一个磁盘存储器,存储器32中可以存储各种指令,以用于完成各种处理功能以及实现本申请的方法步骤。可选的,本申请涉及的终端设备还可以包括:接收器33、电源35、通信总线36以及通信端口37。接收器33和发送器34可以集成在终端设备的收发信机中,也可以为终端设备上独立的收发天线。通信总线36用于实现元件之间的通信连接。上述通信端口37用于实现终端设备与其他外设之间进行连接通信。FIG. 7 is a schematic structural diagram of another terminal device provided by the present application. As shown in FIG. 7 , the terminal device may include: a processor 31 (for example, a CPU), a memory 32, and a transmitter 34; the transmitter 34 is coupled to the processor 31, and the processor 31 controls the transmitting action of the transmitter 34; the memory 32 may Including high-speed random-access memory (RAM), and possibly non-volatile memory (NVM), such as at least one disk memory, memory 32 may store various instructions to use In order to complete various processing functions and realize the method steps of the present application. Optionally, the terminal device involved in this application may further include: a receiver 33 , a power supply 35 , a communication bus 36 and a communication port 37 . The receiver 33 and the transmitter 34 may be integrated in the transceiver of the terminal device, or may be independent transceiver antennas on the terminal device. A communication bus 36 is used to enable communication connections between the elements. The above-mentioned communication port 37 is used to realize connection and communication between the terminal device and other peripheral devices.

在本申请实施例中,上述存储器32用于存储计算机可执行程序代码,程序代码包括指令;当处理器31执行指令时,指令使终端设备的处理器31执行上述方法实施例中终端设备的处理动作,使接收器33执行上述方法实施例中终端设备的接收动作,使发送器34执行上述方法实施例中终端设备的发送动作,其实现原理和技术效果类似,在此不再赘述。In this embodiment of the present application, the above-mentioned memory 32 is used to store computer-executable program codes, and the program codes include instructions; when the processor 31 executes the instructions, the instructions cause the processor 31 of the terminal device to perform the processing of the terminal device in the above method embodiments. The receiver 33 performs the receiving operation of the terminal device in the above method embodiments, and the transmitter 34 performs the sending operation of the terminal device in the above method embodiments. The implementation principles and technical effects are similar, and will not be repeated here.

图8为本申请实施例提供的另一种网络设备的结构示意图。如图8所示,该网络设备可以包括:处理器41(例如CPU)、存储器42、接收器43、发送器44;接收器43和发送器44均耦合至处理器41,处理器41控制接收器43的接收动作、处理器41控制发送器44的发送动作;存储器42可能包含高速RAM存储器,也可能还包括非易失性存储器NVM,例如至少一个磁盘存储器,存储器42中可以存储各种指令,以用于完成各种处理功能以及实现本申请的方法步骤。可选的,本申请涉及的网络设备还可以包括:电源45、通信总线46以及通信端口47。接收器43和发送器44可以集成在网络设备的收发信机中,也可以为网络设备上独立的收发天线。通信总线46用于实现元件之间的通信连接。上述通信端口47用于实现网络设备与其他外设之间进行连接通信。FIG. 8 is a schematic structural diagram of another network device according to an embodiment of the present application. As shown in FIG. 8 , the network device may include: a processor 41 (eg, a CPU), a memory 42, a receiver 43, and a transmitter 44; both the receiver 43 and the transmitter 44 are coupled to the processor 41, and the processor 41 controls receiving The receiving action of the processor 43, the processor 41 controls the sending action of the transmitter 44; the memory 42 may include a high-speed RAM memory, and may also include a non-volatile memory NVM, such as at least one disk memory, and various instructions can be stored in the memory 42. , used to complete various processing functions and implement the method steps of the present application. Optionally, the network device involved in this application may further include: a power supply 45 , a communication bus 46 and a communication port 47 . The receiver 43 and the transmitter 44 may be integrated in the transceiver of the network device, or may be independent transceiver antennas on the network device. A communication bus 46 is used to enable communication connections between elements. The above-mentioned communication port 47 is used to realize connection and communication between the network device and other peripheral devices.

在本申请中,上述存储器42用于存储计算机可执行程序代码,程序代码包括指令;当处理器41执行指令时,指令使网络设备的处理器41执行上述方法实施例中网络设备的处理动作,使接收器43执行上述方法实施例中网络设备的接收动作,使发送器44执行上述方法实施例中网络设备的发送动作,其实现原理和技术效果类似,在此不再赘述。In this application, the above-mentioned memory 42 is used to store computer-executable program codes, and the program codes include instructions; when the processor 41 executes the instructions, the instructions cause the processor 41 of the network device to perform the processing actions of the network device in the above method embodiments, Making the receiver 43 perform the receiving action of the network device in the foregoing method embodiments, and making the transmitter 44 execute the sending action of the network device in the foregoing method embodiments, the implementation principles and technical effects are similar, and will not be repeated here.

在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时,全部或部分地产生按照本申请实施例的流程或功能。计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。可用介质可以是磁性介质,(例如,软盘、硬盘、磁带)、光介质(例如,DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the procedures or functions according to the embodiments of the present application are generated in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. Computer instructions may be stored on or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server, or data center over a wire (e.g. coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.) to another website site, computer, server, or data center. A computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that includes an integration of one or more available media. Useful media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), among others.

本文中的术语“多个”是指两个或两个以上。本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系;在公式中,字符“/”,表示前后关联对象是一种“相除”的关系。The term "plurality" as used herein refers to two or more. The term "and/or" in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and A and B exist independently B these three cases. In addition, the character "/" in this article generally indicates that the related objects before and after are an "or" relationship; in the formula, the character "/" indicates that the related objects are a "division" relationship.

可以理解的是,在本申请的实施例中涉及的各种数字编号仅为描述方便进行的区分,并不用来限制本申请的实施例的范围。It can be understood that, the various numbers and numbers involved in the embodiments of the present application are only for the convenience of description, and are not used to limit the scope of the embodiments of the present application.

可以理解的是,在本申请的实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本申请的实施例的实施过程构成任何限定。It can be understood that, in the embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not imply the order of execution, and the execution order of each process should be determined by its functions and internal logic, rather than the implementation of the present application. The implementation of the examples constitutes no limitation.

Claims (28)

1.一种随机接入方法,其特征在于,包括:1. A random access method, comprising: 终端设备获取第一随机接入标识;The terminal device obtains the first random access identifier; 所述终端设备在随机接入序列集合组中选择第一随机接入标识对应的第一随机接入序列集合,所述随机接入序列集合组包括L个随机接入序列集合,每个所述随机接入序列集合包括J个随机接入序列,所述L和所述J均为正整数、且所述J大于等于2;The terminal device selects a first random access sequence set corresponding to the first random access identifier in a random access sequence set group, where the random access sequence set group includes L random access sequence sets, each of the random access sequence sets. The random access sequence set includes J random access sequences, the L and the J are both positive integers, and the J is greater than or equal to 2; 所述终端设备向网络设备发送X个第一随机接入序列,所述X为正整数。The terminal device sends X first random access sequences to the network device, where X is a positive integer. 2.根据权利要求1所述的方法,其特征在于,每个所述第一随机接入序列为根据所述第一随机接入序列集合得到的随机接入序列。2 . The method according to claim 1 , wherein each of the first random access sequences is a random access sequence obtained according to the first set of random access sequences. 3 . 3.根据权利要求1或2所述的方法,其特征在于,所述X等于1,所述第一随机接入序列为:所述第一随机接入序列集合中的J个随机接入序列相加生成的随机接入序列。The method according to claim 1 or 2, wherein the X is equal to 1, and the first random access sequence is: J random access sequences in the first random access sequence set Add up the generated random access sequence. 4.根据权利要求3所述的方法,其特征在于,所述终端设备向网络设备发送X个第一随机接入序列,包括:4. The method according to claim 3, wherein the terminal device sends X first random access sequences to the network device, comprising: 所述终端设备将所述第一随机接入序列映射在第一时频资源上发送给所述网络设备,所述第一时频资源包括:1个允许发送所述第一随机接入序列的时域资源和1个允许发送所述第一随机接入序列的频域资源。The terminal device maps the first random access sequence on a first time-frequency resource and sends it to the network device, where the first time-frequency resource includes: one device that is allowed to send the first random access sequence; time domain resources and one frequency domain resource that is allowed to send the first random access sequence. 5.根据权利要求1或2所述的方法,其特征在于,所述X等于所述J,每个所述第一随机接入序列为:所述第一随机接入序列集合中的一个随机接入序列。The method according to claim 1 or 2, wherein the X is equal to the J, and each of the first random access sequences is: a random access sequence in the first random access sequence set access sequence. 6.根据权利要求5所述的方法,其特征在于,所述终端设备向网络设备发送X个第一随机接入序列,包括:6. The method according to claim 5, wherein the terminal device sends X first random access sequences to the network device, comprising: 所述终端设备将所述X个第一随机接入序列映射在第二时频资源上发送给所述网络设备,所述第二时频资源包括:1个允许发送所述第一随机接入序列的时域资源和X个允许发送所述第一随机接入序列的频域资源。The terminal device maps the X first random access sequences on second time-frequency resources and sends them to the network device, where the second time-frequency resources include: 1 that is allowed to send the first random access sequence time-domain resources of the sequence and X frequency-domain resources allowed to transmit the first random access sequence. 7.根据权利要求1-6任一项所述的方法,其特征在于,所述第一随机接入序列集合包括M个随机接入序列子集,每个所述随机接入序列子集包括Y个随机接入序列,所述M和所述Y均为正整数;7. The method according to any one of claims 1-6, wherein the first random access sequence set comprises M random access sequence subsets, and each random access sequence subset comprises Y random access sequences, the M and the Y are both positive integers; 每个所述第一随机接入序列为根据一个随机接入序列子集得到的随机接入序列。Each of the first random access sequences is a random access sequence obtained according to a random access sequence subset. 8.根据权利要求7所述的方法,其特征在于,所述X等于所述M,每个所述第一随机接入序列为:一个随机接入序列子集中的Y个随机接入序列相加生成的随机接入序列。8. The method according to claim 7, wherein the X is equal to the M, and each of the first random access sequences is: Y random access sequences in a random access sequence subset plus the generated random access sequence. 9.根据权利要求8所述的方法,其特征在于,所述终端设备向网络设备发送X个第一随机接入序列,包括:9. The method according to claim 8, wherein the terminal device sends X first random access sequences to the network device, comprising: 所述终端设备将所述X个第一随机接入序列映射在第三时频资源上发送给所述网络设备,所述第三时频资源包括:M个允许发送所述第一随机接入序列的时域资源和1个允许发送所述第一随机接入序列的频域资源;或者,所述第三时频资源包括:1个允许发送所述第一随机接入序列的时域资源和M个允许发送所述第一随机接入序列的频域资源。The terminal device maps the X first random access sequences on third time-frequency resources and sends them to the network device, where the third time-frequency resources include: M number of first random access sequences allowed to be sent time-domain resources of the sequence and one frequency-domain resource allowed to send the first random access sequence; or, the third time-frequency resource includes: one time-domain resource allowed to send the first random access sequence and M frequency domain resources that are allowed to transmit the first random access sequence. 10.根据权利要求7所述的方法,其特征在于,所述X等于所述Y与所述M的乘积,每个所述第一随机接入序列为:一个随机接入序列子集中的一个随机接入序列。10. The method according to claim 7, wherein the X is equal to the product of the Y and the M, and each of the first random access sequences is: one of a subset of random access sequences random access sequence. 11.根据权利要求10所述的方法,其特征在于,所述终端设备向网络设备发送X个第一随机接入序列,包括:11. The method according to claim 10, wherein the terminal device sends X first random access sequences to the network device, comprising: 所述终端设备将所述X个第一随机接入序列映射在第四时频资源上发送给所述网络设备,所述第四时频资源包括:M个允许发送所述第一随机接入序列的时域资源和Y个允许发送所述第一随机接入序列的频域资源。The terminal device maps the X first random access sequences on fourth time-frequency resources and sends them to the network device, where the fourth time-frequency resources include: M number of first random access sequences allowed to be sent time-domain resources of the sequence and Y frequency-domain resources allowed to transmit the first random access sequence. 12.根据权利要求1-11任一项所述的方法,其特征在于,所述第一随机接入序列集合包括M个随机接入序列子集,每个所述随机接入序列子集包括K个随机接入序列组,每个所述随机接入序列组包括Q个随机接入序列,其中,所述M,所述K和所述Q均为正整数;12. The method according to any one of claims 1-11, wherein the first random access sequence set comprises M random access sequence subsets, and each random access sequence subset comprises K random access sequence groups, each of the random access sequence groups includes Q random access sequences, wherein the M, the K and the Q are all positive integers; 每个所述第一随机接入序列为根据一个随机接入序列组得到的随机接入序列。Each of the first random access sequences is a random access sequence obtained according to a random access sequence group. 13.根据权利要求12所述的方法,其特征在于,所述X为所述M与所述K的乘积,每个所述第一随机接入序列为:一个随机接入序列组中的Q个随机接入序列相加生成的随机接入序列。The method according to claim 12, wherein the X is the product of the M and the K, and each of the first random access sequences is: Q in a random access sequence group A random access sequence is generated by adding the random access sequences. 14.根据权利要求13所述的方法,其特征在于,所述终端设备向网络设备发送X个第一随机接入序列,包括:14. The method according to claim 13, wherein the terminal device sends X first random access sequences to the network device, comprising: 所述终端设备将所述X个第一随机接入序列映射在第五时频资源上发送给所述网络设备,所述第五时频资源包括:M个允许发送所述第一随机接入序列的时域资源和K个允许发送所述第一随机接入序列的频域资源。The terminal device maps the X first random access sequences on a fifth time-frequency resource and sends it to the network device, where the fifth time-frequency resource includes: M numbers that are allowed to send the first random access sequence time domain resources of the sequence and K frequency domain resources allowed to transmit the first random access sequence. 15.一种随机接入方法,其特征在于,包括:15. A random access method, comprising: 网络设备广播随机接入序列集合组配置信息,所述随机接入序列集合组包括L个随机接入序列集合,每个所述随机接入序列集合包括J个随机接入序列,所述L和所述J均为正整数、且所述J大于等于2;The network device broadcasts random access sequence set group configuration information, the random access sequence set group includes L random access sequence sets, each of the random access sequence sets includes J random access sequences, and the L and The J are all positive integers, and the J is greater than or equal to 2; 所述网络设备检测终端设备发送的X个第一随机接入序列,所述X为正整数;The network device detects X first random access sequences sent by the terminal device, where X is a positive integer; 所述网络设备确定所述X个第一随机接入序列对应的随机接入标识。The network device determines random access identifiers corresponding to the X first random access sequences. 16.根据权利要求15所述的方法,其特征在于,所述网络设备检测终端设备发送的X个第一随机接入序列,包括:16. The method according to claim 15, wherein the network device detects X first random access sequences sent by the terminal device, comprising: 所述网络设备在第一时频资源上检测所述X个第一随机接入序列,所述第一时频资源包括:1个允许发送所述第一随机接入序列的时域资源和1个允许发送所述第一随机接入序列的频域资源。The network device detects the X first random access sequences on first time-frequency resources, where the first time-frequency resources include: 1 time domain resource that allows sending the first random access sequence and 1 a frequency domain resource that is allowed to transmit the first random access sequence. 17.根据权利要求16所述的方法,其特征在于,所述网络设备在第一时频资源上检测所述X个第一随机接入序列,包括:17. The method according to claim 16, wherein the network device detects the X first random access sequences on the first time-frequency resource, comprising: 所述网络设备根据在所述第一时频资源上接收到的所述X个第一随机接入序列,从所述随机接入序列集合组中筛选出至少一个第二随机接入序列集合;The network device selects at least one second random access sequence set from the random access sequence set group according to the X first random access sequences received on the first time-frequency resource; 所述网络设备根据所述至少一个第二随机接入序列集合,确定所述X个第一随机序列对应的随机接入序列集合。The network device determines, according to the at least one second random access sequence set, a random access sequence set corresponding to the X first random sequences. 18.根据权利要求17所述的方法,其特征在于,所述网络设备根据所述至少一个第二随机接入序列集合,确定所述X个第一随机序列对应的随机接入序列集合,包括:The method according to claim 17, wherein the network device determines the random access sequence set corresponding to the X first random sequences according to the at least one second random access sequence set, comprising: : 所述网络设备对每个所述第二随机接入序列集合中的J个随机接入序列进行合并,将接收功率最大且大于预设门限值的第二随机接入序列集合作为所述X个第一随机序列对应的随机接入序列集合。The network device combines the J random access sequences in each of the second random access sequence sets, and uses the second random access sequence set with the maximum received power and greater than a preset threshold value as the X A set of random access sequences corresponding to the first random sequence. 19.根据权利要求15-18任一项所述的方法,其特征在于,所述网络设备检测终端设备发送的X个第一随机接入序列,包括:19. The method according to any one of claims 15-18, wherein the network device detects X first random access sequences sent by the terminal device, comprising: 所述网络设备在第二时频资源上检测所述X个第一随机接入序列,所述第二时频资源包括:1个允许发送所述第一随机接入序列的时域资源和X个允许发送所述第一随机接入序列的频域资源。The network device detects the X first random access sequences on second time-frequency resources, where the second time-frequency resources include: 1 time-domain resource that is allowed to send the first random access sequence and X a frequency domain resource that is allowed to transmit the first random access sequence. 20.根据权利要求19所述的方法,其特征在于,所述网络设备在第二时频资源上检测所述第一随机接入序列,包括:20. The method according to claim 19, wherein the network device detects the first random access sequence on the second time-frequency resource, comprising: 所述网络设备根据在所述X个所述频域资源上接收到的所述X个第一随机接入序列,从所述随机接入序列集合组中筛选出至少一个第三随机接入序列集合;The network device selects at least one third random access sequence from the random access sequence set group according to the X first random access sequences received on the X frequency domain resources gather; 所述网络设备根据所述至少一个第三随机接入序列集合,确定所述X个第一随机序列对应的随机接入序列集合。The network device determines, according to the at least one third random access sequence set, a random access sequence set corresponding to the X first random sequences. 21.根据权利要求20所述的方法,其特征在于,所述网络设备根据所述至少一个第三随机接入序列集合,确定所述X个第一随机序列对应的随机接入序列集合,包括:21. The method according to claim 20, wherein the network device determines the random access sequence set corresponding to the X first random sequences according to the at least one third random access sequence set, comprising: : 所述网络设备对每个所述第三随机接入序列集合中的J个随机接入序列进行合并,将接收功率最大且大于预设门限值的第三随机接入序列集合作为所述第一随机序列对应的随机接入序列集合。The network device combines the J random access sequences in each of the third random access sequence sets, and uses the third random access sequence set with the maximum received power and greater than a preset threshold value as the third random access sequence set. A random access sequence set corresponding to a random sequence. 22.根据权利要求15-21任一项所述的方法,其特征在于,所述网络设备检测终端设备发送的X个第一随机接入序列,包括:22. The method according to any one of claims 15-21, wherein the network device detects X first random access sequences sent by the terminal device, comprising: 所述网络设备在第三时频资源上检测所述X个第一随机接入序列,所述第三时频资源包括:M个允许发送所述第一随机接入序列的时域资源和1个允许发送所述第一随机接入序列的频域资源;或者,所述第三时频资源包括:1个允许发送所述第一随机接入序列的时域资源和M个允许发送所述第一随机接入序列的频域资源。The network device detects the X first random access sequences on a third time-frequency resource, where the third time-frequency resource includes: M time-domain resources that are allowed to send the first random access sequence and 1 frequency domain resources allowed to send the first random access sequence; or, the third time-frequency resources include: 1 time domain resource allowed to send the first random access sequence and M resources allowed to send the first random access sequence Frequency domain resources of the first random access sequence. 23.根据权利要求22所述的方法,其特征在于,在所述第三时频资源包括M个允许发送所述第一随机接入序列的时域资源和1个允许发送所述第一随机接入序列的频域资源时,所述网络设备在第三时频资源上检测所述X个第一随机接入序列,包括:23 . The method according to claim 22 , wherein the third time-frequency resource comprises M time-domain resources that are allowed to send the first random access sequence and 1 time-domain resource that is allowed to send the first random access sequence. 24 . When accessing the frequency domain resource of the sequence, the network device detects the X first random access sequences on the third time-frequency resource, including: 所述网络设备根据在X个所述时域资源上接收到的所述X个第一随机接入序列,从所述随机接入序列集合组中筛选出至少X个第一随机接入序列子集;The network device selects at least X first random access sequence subgroups from the random access sequence set group according to the X first random access sequences received on the X time domain resources. set; 所述网络设备在每个所述时域资源上根据至少一个所述第一随机接入序列子集确定至少一个第二随机接入序列子集;determining, by the network device, at least one second random access sequence subset according to at least one of the first random access sequence subsets on each of the time domain resources; 所述网络设备根据在所述X个时域资源上确定的至少X个第二随机接入序列子集,确定所述X个第一随机序列对应的随机接入序列集合。The network device determines the random access sequence set corresponding to the X first random sequences according to the at least X second random access sequence subsets determined on the X time domain resources. 24.根据权利要求23所述的方法,其特征在于,所述网络设备在每个所述时域资源上根据至少一个所述第一随机接入序列子集确定至少一个第二随机接入序列子集,包括:24. The method according to claim 23, wherein the network device determines at least one second random access sequence according to at least one subset of the first random access sequence on each of the time domain resources subset, including: 所述网络设备在每个所述时域资源上对每个所述第一随机接入序列子集中的Y个随机接入序列进行合并,将接收功率最大且大于预设门限值的第一随机接入序列子集作为第二随机接入序列子集。The network device combines the Y random access sequences in each of the first random access sequence subsets on each of the time domain resources, and combines the first random access sequence with the maximum received power and greater than the preset threshold value. The random access sequence subset is used as the second random access sequence subset. 25.根据权利要求23或24所述的方法,其特征在于,所述网络设备根据在所述X个时域资源上确定的至少X个第二随机接入序列子集,确定所述X个第一随机序列对应的随机接入序列集合,包括:25. The method according to claim 23 or 24, wherein the network device determines the X number of second random access sequence subsets according to at least X number of second random access sequence subsets determined on the X number of time domain resources The set of random access sequences corresponding to the first random sequence, including: 所述网络设备根据所述X个时域资源,对所述至少X个第二随机接入序列子集进行合并,将接收功率最大且大于预设门限值的随机接入序列集合作为所述X个第一随机序列对应的随机接入序列集合。The network device combines the at least X second random access sequence subsets according to the X time domain resources, and uses the random access sequence set with the maximum received power and greater than a preset threshold value as the A set of random access sequences corresponding to the X first random sequences. 26.根据权利要求17-18、20-21、23-25任一项所述的方法,其特征在于,所述网络设备确定所述X个第一随机接入序列对应的随机接入标识,包括:26. The method according to any one of claims 17-18, 20-21, and 23-25, wherein the network device determines the random access identifiers corresponding to the X first random access sequences, include: 所述网络设备将所述X个第一随机接入序列对应的随机接入序列集合的随机接入标识,作为所述X个第一随机接入序列对应的随机接入标识。The network device uses the random access identifiers of the random access sequence sets corresponding to the X first random access sequences as the random access identifiers corresponding to the X first random access sequences. 27.一种终端设备,其特征在于,所述终端设备包括:处理器、存储器、发送器;所述发送器耦合至所述处理器,所述处理器控制所述发送器的发送动作;27. A terminal device, characterized in that the terminal device comprises: a processor, a memory, and a transmitter; the transmitter is coupled to the processor, and the processor controls a sending action of the transmitter; 其中,所述存储器用于存储计算机可执行程序代码,所述程序代码包括指令;当所述处理器执行所述指令时,所述指令使所述终端设备执行如权利要求1-14任一项所述的方法。Wherein, the memory is used to store computer-executable program codes, and the program codes include instructions; when the processor executes the instructions, the instructions cause the terminal device to execute any one of claims 1-14 the method described. 28.一种网络设备,其特征在于,所述网络设备包括:处理器、存储器、接收器、发送器;所述接收器耦合至所述处理器,所述处理器控制所述发送器的发送动作,所述处理器控制所述接收器的接收动作;28. A network device, characterized in that the network device comprises: a processor, a memory, a receiver, and a transmitter; the receiver is coupled to the processor, and the processor controls the transmission of the transmitter an action, the processor controls a receiving action of the receiver; 其中,所述存储器用于存储计算机可执行程序代码,所述程序代码包括指令;当所述处理器执行所述指令时,所述指令使所述网络设备执行如权利要求15-26任一项所述的方法。Wherein, the memory is used to store computer-executable program codes, and the program codes include instructions; when the processor executes the instructions, the instructions cause the network device to execute any one of claims 15-26. the method described.
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