CN108347768B - Preamble resource grouping method, preamble selection method, network equipment and terminal equipment - Google Patents

Abstract

The embodiment of the present application discloses a preamble resource grouping method, a preamble selection method, a network device and a terminal device; wherein, the implementation of the preamble resource grouping method includes: the network device sends a preamble resource group to the terminal device and the configuration of the preamble resource group information; the preamble resource group is a set of preambles, and the configuration information of the preamble resource group includes the information type of the preamble resource group and/or the configuration value of the information type; receiving the preamble sent by the terminal device, The preamble sent by the terminal device belongs to the set of preambles. Network equipment can quickly obtain terminal equipment information, reducing random access delay with less overhead.

Description

Preamble resource grouping method, preamble selection method, network equipment and terminal equipment

Technical field

The present application relates to the field of mobile communication technology, and in particular to a preamble resource grouping method, a preamble selection method, network equipment and terminal equipment.

Background technique

With the development of wireless communication technology, mobile services have increasing demands for data transmission speed and efficiency, thus placing higher requirements on the bandwidth and transmission methods of wireless communication.

Due to the limited low-frequency bandwidth resources, the communication system of the fifth generation mobile communication technology (5th-Generation, 5G) will use a higher carrier frequency (generally, greater than 6GHz) compared to the Long Term Evolution (LTE) ), such as 28GHz, 38GHz, or 72GHz frequency bands, etc., to achieve wireless communication with larger bandwidth and higher transmission rate. Due to the higher carrier frequency, the wireless signals transmitted by it experience more severe fading during space propagation, and it is even difficult to detect the wireless signal at the receiving end. To this end, beamforming (BF) technology will be used in the 5G communication system to obtain beams with good directivity to increase the power in the transmitting direction and improve the signal-to-interference plus Noise Ratio (Signal to Interference plus Noise Ratio) at the receiving end. ,SINR). In order to increase coverage and control antenna array costs, hybrid beamforming (HBF) technology has become the best choice, which includes both analog beamforming (ABF) and digital beamforming (DBF). ). Among them, DBF is similar to Multi-Input Multi-Output (MIMO) in LTE, while ABF adjusts the direction of the analog beam by changing the weights between elements in the antenna array.

Since multiple devices exist at the same time in a communication network, the bandwidth capabilities supported by different devices, the correspondence between transmitting beams and receiving beams, and the path loss with the base station may be different from each other. Therefore, it brings great challenges to network design and scheduling.

In LTE, random access is mainly to achieve uplink synchronization between user equipment (User Equipment, UE) and the network side and to apply for uplink communication resources. The preamble carrying random access contains a Zadoff-Chu sequence of length 839. In the random access channel (RACH) of the LTE network, there are 64 preamble sequences used for random access. These 64 leading sequences may be divided into 2 groups, for example: group A and group B respectively. When Msg3 of the UE is less than the specified threshold, the preamble is selected from group A for random access, otherwise it is selected from group B. In LTE, the above preamble sequence information, packet information and Msg3 size threshold are carried to the UE in the downlink system information block (SIB). On the base station side, the base station allocates resources for the UE to perform uplink transmission to the UE based on the preamble sent by the UE.

In the future wireless communication network, there will be terminal devices with different capabilities. The current random access process cannot transmit terminal device side information to the base station in time, resulting in increased random access overhead and longer delay.

Contents of the invention

The technical problem to be solved by the embodiments of this application is to provide a preamble resource grouping method, a preamble selection method, network equipment and terminal equipment, to achieve random access with less overhead and reduce random access delay.

On the one hand, a leading resource grouping method is provided, which is applied to the network device side. The method includes:

The network device sends the leading resource group and the configuration information of the leading resource group to the terminal device; the leading resource group is a set of leading resources, and the configuration information of the leading resource group includes the information type and/or the information type of the leading resource group. Configuration value of the above information type;

The network device receives the preamble sent by the terminal device, and the preamble sent by the terminal device belongs to the set of preambles.

The preamble resource group and the configuration information of the preamble resource group can be carried using any message between the network device and the terminal device, such as random access information or system information. The above random access information refers to the information for random access sent by the network device to the terminal device. This information can be carried using existing signaling or messages, or it can also be carried using newly defined messages or signaling; preamble resources The configuration information of the group is used to indicate which information the leading resource group meets. Specifically, it can be only the information type, only the configuration value of the information type, or both. On the terminal device side, when the terminal device determines that it conforms to the configuration information in a certain preamble resource group, it selects the preamble in the corresponding preamble resource group and sends it to the network device. Therefore, after receiving the preamble, the network device can determine that the terminal device complies with the configuration information specified in the corresponding preamble resource group. In addition, it can be understood that there can be many leading resource groups, usually at least two. As for the specific number of leading resource groups, it can be determined as needed. This embodiment of the present application does not impose a unique limit on this.

In this application, when the terminal device complies with the configuration information of the preamble resource group, the terminal device selects the preamble in the preamble resource group and sends it to the network device, that is, the preamble sent by the terminal device is When the terminal device complies with the configuration information of the preamble resource group.

In an optional implementation, system information, or system information block, is also provided to carry the above-mentioned preamble resource group and its configuration information. This solution can be compatible with the existing random access process and reduce Possible modifications to the random access process are as follows: the network device sends a preamble resource group and the configuration information of the preamble resource group to the terminal device; including:

The network device sends system information to the terminal device; the system information carries the preamble resource group and the configuration information of the preamble resource group.

In an optional implementation, an implementation scheme for a network device to generate a random access response is also provided, as follows: The method further includes:

The network device determines that the information on the terminal device side conforms to the information in the preamble resource group; generates a random access response based on the preamble sent by the terminal device and the information in the preamble resource group, and sends it to the terminal device Send the random access response.

In this embodiment, the random access response is determined according to the preamble resource group in which the received preamble is located. Since the preamble resource group has been determined, it can be determined that the terminal device conforms to the configuration information of the preamble resource group in which the preamble is located, so it can Based on this, a more targeted random access response is generated.

In an optional implementation, the terminal device may send one or more preambles. Based on this, the embodiment of this application provides a specific implementation method for returning a random access response on the network device side, as follows: The network device receiving the preamble sent by the terminal device includes:

The network device receives a preamble sent by the terminal device;

Generating a random access response based on the preamble sent by the terminal device and the information in the preamble resource group, and sending the random access response to the terminal device includes:

Generate a random access response based on one preamble sent by the terminal device and the configuration information of the preamble resource group in which the one preamble is located, and send the one random access response to the terminal device on one beam. response;

Alternatively, the network device receiving the preamble sent by the terminal device includes:

The network device receives at least i preambles sent by the terminal device, and the i is greater than or equal to 1;

Generating a random access response based on the preamble sent by the terminal device and the information in the preamble resource group, and sending the random access response to the terminal device includes:

Generate j random access responses based on at least i preambles sent by the terminal device and the configuration information of the preamble resource group in which the at least i preambles are located, where the said at least i preambles are greater than or equal to 1 and less than or equal to i;

When j is 1, the j random access responses are sent on one downlink beam; when j is greater than 1 and less than or equal to i, L random access responses are sent on K beams. Access response, the L is greater than or equal to the K, the L random access responses belong to the random access responses among the j random access responses, and the K is less than or equal to the j.

In this embodiment, the terminal device can send multiple or one preamble on multiple beams. After receiving multiple preambles, the network device can generate at most as many random access responses as there are preambles. After generating the random access response Then all or part of the generated random access responses can be sent to the terminal device on multiple or one beam. For the terminal device, the random access can be completed based on any random access response received.

In an optional implementation, a specific example of a set of preambles is also provided, and the set of preambles includes:

An orthogonal signal formed on time, frequency and preamble sequence, or a quasi-orthogonal signal formed on time, frequency and preamble sequence, or a low autocorrelation and low signal formed on time, frequency and preamble sequence. Cross-correlated signals.

It can be understood that the random access preamble can be obtained by any method known to those skilled in the art, and the set of preambles can be arbitrarily combined as needed. The several combinations given above should not be understood as limiting the implementation of this application. The uniqueness limit of the example.

In an optional implementation, a specific example of the information type of the leading resource group is also provided. The information type of the leading resource group includes:

At least one of the maximum bandwidth, random access process type, waveform used for uplink transmission data, received signal strength, information carried in the random access response, and setting functions.

It can be understood that the information type of the preamble resource group is the information used to configure the preamble resource group. This information can be configured according to the information required by the network device side, or can also be configured according to the information that the terminal device side may need to pass to the network device side. It is determined that this information should not be limited to the above examples, so the above examples should not be understood as an exhaustive list of information types of leading resource groups. The above setting function refers to a relatively special type of functional information relative to the maximum bandwidth, random access process type, waveform used for uplink transmission data, received signal strength, and the information carried in the random access response, such as: Request system information on demand (on demand SI request), etc.

In an optional implementation manner, the preamble resource group and the configuration information of the preamble resource group may be pre-configured or dynamically adjusted. If dynamically adjusted, the details may be as follows: in the step of sending the message to the terminal device Before sending the preamble resource group and the configuration information of the preamble resource group, the method further includes:

When the network device needs the configuration information of the preamble resource group of the terminal device, the network device configures the preamble resource group and the configuration information of the preamble resource group in the radio resource control layer.

In the second aspect, a preamble selection method is provided, which is applied to the terminal device side. The method includes:

The terminal device receives the leading resource group from the network device and the configuration information of the leading resource group; the leading resource group is a set of leading resources, and the configuration information of the leading resource group includes the information type and/or of the leading resource group. Configuration value of the information type;

If the terminal device matches the configuration information of the preamble resource group, it selects a preamble from the set of preambles and sends the selected preamble to the network device.

Compared with the solution on the network device side, the implementation solution on the terminal device side provided by the embodiment of the present application has a corresponding relationship. Therefore, reference can be made to the implementation solution on the network device side, which will not be described in detail here.

In an optional implementation, the set of preambles includes:

An orthogonal signal formed on time, frequency and preamble sequence, or a quasi-orthogonal signal formed on time, frequency and preamble sequence, or a low autocorrelation and low signal formed on time, frequency and preamble sequence. Cross-correlated signals.

In an optional implementation, the information type of the leading resource group includes:

At least one of the maximum bandwidth, random access process type, waveform used for uplink transmission data, received signal strength, information carried in the random access response, and setting functions.

In an optional implementation manner, selecting a preamble from the set of preambles and sending the selected preamble to the network device includes: selecting 1 preamble from the set of preambles, and sending the selected 1 preamble to the network device. A preamble is sent to the network device; the method further includes: receiving one random access response sent by the network device on one beam;

Alternatively, selecting a preamble from the set of preambles and sending the selected preambles to the network device includes: selecting i preambles from the set of preambles and sending the selected i preambles to the network device. ; The method further includes: receiving L random access responses on K beams, where L is greater than or equal to K, and both L and K are less than or equal to i.

In a third aspect, a network device is also provided, including:

An information sending unit, configured to send a leading resource group and configuration information of the leading resource group to the terminal device; the leading resource group is a set of leading resources, and the configuration information of the leading resource group includes the information type of the leading resource group. and/or the configuration value of the information type;

A preamble receiving unit is configured to receive a preamble sent by the terminal device, where the preamble sent by the terminal device belongs to the set of preambles.

In an optional implementation manner, the information sending unit is configured to send system information to the terminal device; the system information carries the preamble resource group and the configuration information of the preamble resource group.

In an optional implementation, the network device further includes:

An information determination unit, configured to determine that the information on the terminal device side conforms to the information in the preamble resource group;

A response generation unit configured to generate a random access response based on the preamble sent by the terminal device and the information in the preamble resource group;

A response sending unit, configured to send the random access response to the terminal device.

In an optional implementation, the preamble receiving unit is configured to receive a preamble sent by the terminal device;

The response generation unit is configured to generate a random access response based on a preamble sent by the terminal device and the configuration information of the preamble resource group in which the one preamble is located;

The response sending unit is configured to send the one random access response to the terminal device on one beam;

or,

The preamble receiving unit is configured to receive at least i preambles sent by the terminal device, where i is greater than or equal to 1;

The response generation unit is configured to generate j random access responses based on at least i preambles sent by the terminal device and configuration information of the preamble resource group in which the at least i preambles are located, and the said response generation unit is greater than or equal to 1 and less than or equal to i;

The response sending unit is configured to send the j random access responses on one downlink beam when j is 1; when j is greater than 1 and less than or equal to i, L random access responses are sent on K beams, the L is greater than or equal to the K, the L random access responses belong to the random access responses among the j random access responses, and the K is less than or equal to the j.

In an optional implementation, the set of preambles includes:

An orthogonal signal formed on time, frequency and preamble sequence, or a quasi-orthogonal signal formed on time, frequency and preamble sequence, or a low autocorrelation and low signal formed on time, frequency and preamble sequence. Cross-correlated signals.

In an optional implementation, the information type of the leading resource group includes:

At least one of the maximum bandwidth, random access process type, waveform used for uplink transmission data, received signal strength, information carried in the random access response, and setting functions.

In an optional implementation, the network device further includes:

An information configuration unit configured to configure the preamble resource group and the configuration information of the preamble resource group at the radio resource control layer when the network device requires the configuration information of the preamble resource group of the terminal device.

In the fourth aspect, a terminal device is also provided, including:

An information receiving unit, configured for a terminal device to receive a leading resource group from a network device and configuration information of the leading resource group; the leading resource group is a set of leading resources, and the configuration information of the leading resource group includes the leading resource group. The information type and/or the configuration value of the information type;

A preamble selection unit configured to select a preamble from the set of preambles when the terminal device conforms to the configuration information of the preamble resource group;

A preamble sending unit, configured to send the selected preamble to the network device.

In an optional implementation, the set of preambles includes:

An orthogonal signal formed on time, frequency and preamble sequence, or a quasi-orthogonal signal formed on time, frequency and preamble sequence, or a low autocorrelation and low signal formed on time, frequency and preamble sequence. Cross-correlated signals.

In an optional implementation, the information type of the leading resource group includes:

At least one of the maximum bandwidth, random access process type, waveform used for uplink transmission data, received signal strength, information carried in the random access response, and setting functions.

In an optional implementation, the terminal device further includes: a response receiving unit;

The leader selection unit is used to select a leader from the set of leaders;

The preamble sending unit is used to send the selected preamble to the network device; the terminal device also includes:

The response receiving unit is configured to receive one random access response sent by the network device on one beam;

or,

The leader selection unit is used to select i leaders from the set of leaders;

The preamble sending unit is used to send the selected i preambles to the network device; the terminal device also includes:

The response receiving unit is configured to receive L random access responses on K beams, where L is greater than or equal to K, and both L and K are less than or equal to i.

In a fifth aspect, a network device is also provided, including: a transceiver, a processor, and a memory that are communicatively connected; instructions are stored in the memory, and when run on the network device, the instructions are caused to cause the The network device performs the method described in any one of the above aspects.

In a sixth aspect, a terminal device is also provided, including: a transceiver, a processor, and a memory that are communicatively connected; instructions are stored in the memory, and when run on the terminal device, the instructions are caused to cause the The terminal device executes the method described in either of the above two aspects.

Another aspect of the present application provides a computer program product containing instructions that, when run on a computer, cause the computer to perform the methods described in the above aspects.

Another aspect of the present application provides a computer-readable storage medium that stores instructions, which when run on a computer, cause the computer to perform the methods described in the above aspects.

In this embodiment of the present application, when a terminal device is randomly accessed, the sooner the network device can obtain the information of the terminal device, the more conducive it is for the network device to make efficient scheduling; through the way of preamble resource grouping, according to The preamble returned by the terminal device can determine the capability information of the terminal device and the configuration information corresponding to the preamble resource group to which the returned preamble belongs; therefore, the information of the terminal device can be obtained quickly, reducing the random access delay with a small overhead. .

Description of the drawings

In order to more clearly explain the technical solutions in the embodiments of the present application or the background technology, the drawings required to be used in the embodiments or the background technology of the present application will be described below.

Figure 1 is a schematic structural diagram of the system according to the embodiment of the present application;

FIG2 is a schematic diagram of a method flow chart of an embodiment of the present application;

Figure 3 is a schematic flow diagram of the method according to the embodiment of the present application;

Figure 4a is a schematic diagram of the leader resource grouping structure according to the embodiment of the present application;

Figure 4b is a schematic diagram of the leader resource grouping structure according to the embodiment of the present application;

Figure 4c is a schematic diagram of the leader resource grouping structure according to the embodiment of the present application;

Figure 5a is a schematic diagram of the leading structure of the embodiment of the present application;

Figure 5b is a schematic diagram of the leading structure of the embodiment of the present application;

Figure 5c is a schematic diagram of the leading structure of the embodiment of the present application;

Figure 6a is a schematic diagram of downlink system information according to the embodiment of the present application;

Figure 6b is a schematic diagram of a UE sending a random access signal according to an embodiment of the present application;

Figure 6c is a schematic diagram of the base station response according to the embodiment of the present application;

Figure 6d is a schematic diagram of downlink system information according to the embodiment of the present application;

Figure 6e is a schematic diagram of a UE sending a random access signal according to an embodiment of the present application;

Figure 6f is a schematic diagram of the base station response according to the embodiment of the present application;

Figure 6g is a schematic diagram of the beam scanning structure of the system structure according to the embodiment of the present application;

Figure 6h is a schematic structural diagram of the system according to the embodiment of the present application;

Figure 7 is a schematic structural diagram of network equipment according to an embodiment of the present application;

Figure 8 is a schematic structural diagram of network equipment according to an embodiment of the present application;

Figure 9 is a schematic structural diagram of network equipment according to an embodiment of the present application;

Figure 10 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

Figure 11 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

Figure 12 is a schematic diagram of the equipment structure according to the embodiment of the present application;

Figure 13 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

Detailed ways

The embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

Before starting the detailed introduction of the embodiments of this application, it needs to be stated that the terminal equipment in the embodiments of this application may refer to an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, and a user terminal. , terminal, wireless communication equipment, user equipment, user agent or user device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), or a device with wireless communication capabilities. Handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminals in 5G networks, etc.

The network equipment in the implementation of this application is a network-side equipment working in the frequency band above 6GHz (including 6GHz), for example, a wireless-fidelity (Wi-Fi) access point, a base station for next-generation communication, such as a 5G gNB or small station, micro station, Transmit Receive Point (TRP), it can also be a relay station, access point, vehicle-mounted device, wearable device, etc. working in the high-frequency band.

The embodiments of the present application can be used in wireless networks of various technologies. The wireless access network may include different network elements in different systems. For example, the network elements of the wireless access network in LTE and LTE-A (LTE Advanced) include evolved base stations (eNodeB, eNB), wireless local area network (wireless local area network, WLAN)/wireless fidelity (Wi-Fi) network Elements include Access Point (AP), etc. Other wireless networks can also use solutions similar to the embodiments of the present application, except that the relevant modules in the base station system may be different, which is not limited by the embodiments of the present application.

It should also be understood that in the embodiments of this application, terminal equipment includes but is not limited to user equipment (UE), mobile station (MS, Mobile Station), mobile terminal (Mobile Terminal), mobile phone (Mobile Telephone), and mobile phone (handset). and portable equipment, etc. The terminal equipment can communicate with one or more core networks via a radio access network (RAN). For example, the terminal equipment can be a mobile phone (also known as a "cell"). Telephone), computer with wireless communication function, etc. The terminal device can also be a portable, pocket-sized, handheld, built-in computer or vehicle-mounted mobile device.

In the following embodiments, the terminal device is a UE and the network device is a base station for illustration.

The embodiments of this application can be applied to any wireless network system shown in Figure 1. In Figure 1, multiple UEs complete uplink access to the base station through random access. The circular area shown in Figure 1 is a cell, and the cell radius (Cellradius) is shown in the diagram.

Hardware involved on the UE side: a generation module for sending signals, which may be a Field Programmable Gate Array (FPGA) module. The transmission signal generation module selects a transmission beam based on random access channel (RACH) information and the UE's own capability information; the capability information can be whether the UE's transmission beam and reception beam are consistent, etc. In LTE, a selected preamble is modulated at a time and frequency location specified by the base station.

Hardware involved on the base station side: The base station forms configuration information about the preamble resource group based on the information it needs to obtain, and then broadcasts it to the UE. The signal detection module of the base station forms a random access response based on the grouping of the RACH information on the preamble resources and the detection result of the signal received from the UE. The signal detection module can also be an FPGA module.

The random access process is shown in Figure 2. You can also refer to the wireless network system shown in Figure 1, including:

201: The base station sends downlink RACH information to the UE, and the RACH information carries preamble configuration information;

The above preamble is also called random access preamble or random access preamble.

202: The UE sends Msg1 to the base station. The Msg1 is also called a random access request, which carries the preamble selected by the UE and is used to initiate random access;

203: The base station sends Msg2 to the UE, which is used for random access response;

204: The UE sends Msg3 to the base station. The Msg3 carries information related to the competition resolution, such as: Common Control Channel (CCCH) service data unit (Service DateUnit, SDU) related to the UE competition resolution identification, etc.;

205: The base station sends Msg4 to the UE, which notifies the competition result;

206: After receiving the Msg4 and learning about the competition to obtain access resources, the UE performs uplink data sending.

The above process is a competitive random access process. The non-competitive random access process does not include the above steps 204 and 205, and will not be described again here.

The embodiments of this application mainly involve the above improvements 201 to 203, and subsequent embodiments will be illustratively described.

In the embodiment of this application, the random access process is shown in Figure 3, and the specific process is as follows:

301: The base station sends the RACH information to the UE in downlink.

The RACH information can be carried in a system information block (System Information Block, SIB), or sent on a control channel, or sent on a data channel. RACH information refers to information used for random access, and its name itself is not limited to uniqueness in this embodiment of the application.

The RACH information is specifically shown in Figure 4a, 4b or 4c. It can include: preamble resource grouping. The information of the preamble resource group can include the following three categories: preamble set, information type, and configuration information. Among these three types of information, the preamble set is usually Necessary information, information type and configuration information can be selected from one or both, as follows:

In Figure 4a, it is shown that three types of information are combined, in Figure 4b, it is both a leader set and information type, and in Figure 4c, it is a leader set and configuration information.

As shown in Figure 4b, there is a lack of configuration information relative to Figure 4a. This is because in some cases, some information types may have no configuration value, that is, they only indicate a certain function, such as requesting (on-demand) system information (SystemInformation). , SI), only restricts requesting this type of system information, that is, functions, so there can be no configuration value.

As shown in Figure 4c, there is a lack of information type compared to Figure 4a. This is because in some cases, there is no information type by default, for example: four preamble resource groups, the first three groups have already used the RACH information shown in Figure 4a, The remaining group only needs to indicate configuration information, and the information type of the leading resource group in the first three leading resource groups is used.

For some special cases, the information of the preamble set may not be needed. For example: in LTE, a network is configured with 64 preambles. When the preamble sets in other preamble resource groups have been determined, the remaining one preamble resource group It is the complement of the preamble set that has been determined. Therefore, the network device does not need to inform the terminal device of the specific preambles in the remaining one preamble resource group. Therefore, there is no information about the preamble set.

Regarding the above three types of information, they are introduced as follows:

1. Leader set: This leader set is a set of leaders that are divided into corresponding leader resource groups; it can be understood that there are as many leader sets as there are leader resource groups. The preamble is information used for random access.

A preamble set can usually include multiple preambles, which are orthogonal and quasi-orthogonal signals formed in the three resource dimensions of time, frequency, and preamble sequence. For example: in Figure 5a, there is one leader set on each of two subbands (subband 1 and subband 2) and two times (t1 and t2), and there are four leader sets in total. Each leader set contains multiple leader sequences, which can be: 70 or other numbers.

Another example: the preamble is a Zadoff-Chu sequence located at one or more time and frequency positions. These time and frequency sequences correspond to a resource pattern, or mask (cover code); as shown in Figure 5b, the resource The pattern, including the leading sequence 1 to sequence 4, is distributed in time (t1 to t4) and frequency (f1 to f4); Figure 5c shows the mask diagram, the mask ([+1,-1,+1,-1 ]), distributed over time (t1~t4) and frequency f1.

2. Information type: This information type is the type of information corresponding to the aforementioned leader set. This information is the information indicated by the leading resource packet.

Specifically, the information type can be: the maximum bandwidth of the UE, the random access process category selected by the UE, the waveform used by the UE to send uplink data, the UE's received signal strength, and some special signaling requests, etc.; there can be one or more information types. indivual. The waveform used by the UE to send uplink data may be: single carrier or multiple carriers. The above-mentioned special signaling request can be specified according to the information required by the base station side of the UE, such as: on-demand system information request (On-demand SIrequest), etc., and is not uniquely limited here.

3. Configuration information: This configuration information is the configuration value of the aforementioned information type and is used to distinguish specific information, that is, the specific value of the aforementioned information type. The configuration value of an information type can be a single value or a combination of multiple values.

Specifically, the base station can configure RACH information at the Radio Resource Control (RRC) layer as follows:

In the following example, preamblesGroupAConfig corresponds to the configuration information of the first preamble resource group, and preamblesGroupBConfig corresponds to the configuration information of the second preamble resource group. Similarly, for more preamble resource groups. messageGroupA-Indication1 corresponds to the configuration of the first type of information in the first leading resource group, and messageGroupA-Indication2 corresponds to the configuration of the second type of information in the first leading resource group. Similarly, more information types can be set and more The leading resource group. Among them, IndicationType refers to the information type. IndicationInfo refers to the configuration value of the corresponding information type. Specific examples are as follows:

302: After obtaining the RACH information, the UE selects the preamble in the corresponding preamble resource group according to the information on the UE side, and then sends it to the base station.

Specifically, the UE specifies the preamble resource group according to the RACH information at the Medium Access Control (MAC) layer, the information type corresponding to the preamble resource group, the specific configuration value of the information type, and the UE side needs to pass random access. The preamble passes the information to the base station, selects the preamble within the preamble resource group, and then sends the selected preamble to the base station.

303: After receiving the preamble sent by the UE, the base station determines the preamble resource group corresponding to the preamble, then determines that the relevant information of the UE matches the information of the preamble resource group, then generates a random access response based on this, and sends the random access response to UE.

The information of the preamble resource group is determined based on the information of the preamble resource group configured in the previous RACH information, and will not be described again here.

304: After receiving the random access response, the UE completes random access according to the random access response.

The following is a more example example of RACH information:

1. The RACH information can inform the base station that the transmission/reception beam is consistent; there are two preamble resource groups in total, and the two preamble resource groups are preamble resource group 1 and preamble resource group 2 respectively. Each leading resource group information contains an information type, and the information type has two values. This information type corresponds to a type of information.

Consistency means that for a certain device, if the parameters used by the transmitting beam and the receiving beam are the same and the receiving and transmitting effects are close, it is considered to have transmit/receive beam consistency, and vice versa. As shown in Figures 6a to 6c, the downlink beam Bi used by the base station corresponds to the uplink Bi', i=1, 2, 3, 4. Figure 6a shows the downlink system information of the base station. Figure 6b shows the sending of random access signals. Figure 6c sends a random access response for the base station.

In this example, the leading resource group 1 and the leading resource group 2 are as follows:

①. Assume that the information type of preamble resource group 1 includes: whether the UE sends beam scanning, and the configuration value is 0 (a value of 0 means that the UE does not perform beam scanning, that is, the UE only sends one beam during random access).

Then, the information type and configuration value of the preamble resource group 1 carried in the RACH information can represent: the sequence of the preamble in the preamble resource group 1, which is used to indicate that the current UE uses only one beam for uplink transmission.

Based on the above instructions, the content that can also be determined can be, for example: the UE transmitting/receiving beams are consistent, the UE receiving beam bi' corresponds to the UE transmitting beam bi, the UE has learned the UE receiving beam and the UE transmitting beam, and indicates the randomness returned by the subsequent base station. The access response does not need to include at least one of the time when the base station receives the beam and the preamble received power (Reference SignalReceived Power, RSRP).

For example: in Figures 6a to 6c, it is assumed that the transmitting/receiving beams of UE1 are consistent; or the receiving beam bi' of UE1 corresponds to the transmitting beam bi of UE1; or UE1 has learned about the receiving beam of UE1 and the transmitting beam of UE, or, indicates The random access response returned by the subsequent base station does not need to include the beam time and RSRP; then, UE1 selects a preamble from the preamble resource group 1, and uses beam b1 to send the signal to the base station at the time when the base station sends beam B3 corresponding to the base station receiving beam B3'. Send a random access signal.

②. It is assumed that the information type of the preamble resource group 2 includes: whether the UE sends beam scanning, and the configuration value is 1. The preamble sequence in the preamble resource group 1 is used to indicate that the current UE uses multiple beams for uplink transmission.

Based on the above instructions, the content that is also determined may be, for example: the UE2 transmit/receive beam is not consistent, the UE does not learn the UE transmit beam, and indicates that the random access response returned by the subsequent base station needs to include the time when the base station receives the beam and at least RSRP. One item.

For example: In Figures 6a to 6c, it is assumed that the transmitting/receiving beams of UE2 are not consistent, or UE2 does not learn the transmitting beam of UE2, or indicates that the random access response returned by the subsequent base station needs to include the time and RSRP of the base station receiving the beam. ; Then, UE2 selects one preamble or two preambles from the preamble resource group 2, and uses beam c1 and beam c2 to send random access signals to the base station at the time when the base station sends beam B3 corresponding to the base station receives beam B3'. In this example, the two preambles sent separately may be the same or different.

Based on the above example, on the base station side, when it is determined that the received preamble belongs to the preamble in preamble resource group 1, the base station sends a random access response to the UE in the downlink on transmit beam B3. The information of the random access response At least include: preamble number, uplink scheduling information, time advance (Time advance, TA). When it is determined that the received preamble belongs to the preamble in the preamble resource group 2, the base station sends a random access response to the UE in the downlink on the transmit beam B3. The information of the random access response is in addition to the aforementioned preamble number, uplink scheduling information and In addition to TA, it can also include the time when the base station receives the pilot signal and the quality of the pilot signal. When it is determined that the received preamble belongs to the preamble in preamble resource group 2, the preamble may be detected within the two preamble signal reception times. In this case, the base station may generate two random access responses. If two random access responses are generated, the base station can choose one of them to send downlink, or send both downlink at the same time, or send downlink respectively at two times.

2. The RACH information can inform the base station that the transmitting/receiving beams are not consistent. There are a total of 2N preamble resource groups, and each preamble resource group contains two information types. As shown in Figure 6d to Figure 6f, Figure 6d shows the downlink system information of the base station, Figure 6e shows the random access signal sent, and Figure 6f shows the base station sending the random access response.

As shown in Figures 6d to 6f, the downlink beam Bi used by the base station corresponds to the uplink Bi', i=1, 2, 3, 4.

It is assumed that among the information types of each preamble resource grouping, the first type of information is whether the UE sends beam scanning, and this type of information has two values; the second type of information is the information of the base station sending beams (for example: the time of sending beams , or identification (Identity, ID), or downlink synchronization information number, etc.), this type of information can have N values.

As shown in Figure 6d to Figure 6f, when the second type of information type corresponds to the base station transmitting beam, when N=4, it can mean that each value corresponds to a base station transmitting beam; when N<4, it means that some values The value can correspond to multiple base station transmit beams. The following takes N=2 as an example for illustration.

When the configuration value of the first type of information type is 0, it can mean that the preamble sequence in this group indicates the following information: the current UE only uses one beam to transmit, the receiving beam bi' of the UE corresponds to the transmitting beam bi of the UE, It has been learned that the UE receives the beam and the UE transmits the beam, indicating that the random access response returned by the subsequent base station does not need to include at least one of the time of the beam and the RSRP.

When the configuration value of the first type of information type is 1, it can mean that the preamble sequence in this group indicates the following information: the current UE is transmitting on multiple UE transmission beams, the UE has not learned the UE transmission beam, and indicates that the subsequent base station returns The random access response needs to contain at least one of the beam time and RSRP.

When the configuration value of the second type of information type is {B1, B2}, it can mean that the preamble sequence in this group indicates the following information: for the current UE, the best transmit beam of the base station is B1 or B2, or, the indication The base station returns a random access response on the base station transmit beams B1 and B2.

When the configuration value of the second type of information type is {B3, B4}, it can mean that the preamble sequence in this group indicates the following information: For the current UE, the best transmission beam of the base station is B3 or B4, or, the indication The base station returns a random access response on the base station transmit beams B3 and B4.

In this example, RACH information includes preamble resource groups 1 to 4. The corresponding information types and their configuration values are as follows: Assume that in the information type of preamble resource group 1, the configuration value of the first type of information type is 0, and the configuration value of the second type is 0. The configuration value of the information type is {B1, B2}; among the information types of the leading resource group 2, the configuration value of the first type of information type is 0, and the configuration value of the second type of information type is {B3, B4}; the leading resource group Among the information types of 3, the configuration value of the first type of information type is 1, and the configuration value of the second type of information type is {B1,B2}; among the information types of leader resource group 4, the configuration value of the first type of information type is 1. The configuration value of the second type of information type is {B3, B4}. In this embodiment, the leading resource group 4 may lack the information type item, and only the configuration values of the two information types need to be specified.

Based on the above specific examples of RACH information, examples of the UE selecting the preamble in Figures 6d to 6f are as follows:

Assume that the beams sent/received by UE1 are consistent, or UE1 has learned that UE1 has sent beam b1, or UE1 does not need the random access response returned by the base station to include the time and RSRP of the beam; then UE1 selects one from the preamble resource group 2 or The two preambles use UE1 to send beam b1, and the base station receives beams B3' and B4' to send random access signals to the base station. In this example, the preambles sent by UE1 in the base station receiving beams B3' and B4' may be the same or different.

Assume that the beams sent/received by UE2 are not consistent, or UE2 does not know the beam sent by UE2, or UE2 needs the random access response returned by the base station to include the time and RSRP of the beam; then UE2 selects 1~ 4 preambles, first use UE2 to send beam c1, and within the base station receive beams B1' and B2', send a random access signal to the base station; then use UE2 to send beam c2, within the base station receive beams B1' and B2', to the base station Send a random access signal. In this example, the four preambles sent respectively may be the same or different.

Based on the above example of UE1 and UE2, the processing process after receiving the preamble on the base station side is as follows:

On the base station side, when it is determined that the received preamble belongs to the preamble in the preamble resource group 2, the base station sends response information to the UE in the downlink on the base station transmission beams B3 and B4. The response information may include: preamble number, uplink scheduling information ,TA. Since it is determined that the received preamble belongs to the preamble in preamble resource group 2, it is possible to receive the preamble at both preamble signal reception times. In this case, the base station may generate two random access responses. If two random access responses are generated, the base station can choose one of them to send in downlink, or send two in downlink at the same time, or send two in time divided downlink. In this example, the base station sends random access responses to both B3 and B4. The random access responses sent in the two beams (ie, B3 and B4) may be the same or different. On the UE side, the UE can only receive random access responses in any one of the beams, or it can receive random access responses in both beams.

On the base station side, when it is determined that the received preamble belongs to the preamble in the preamble resource group 4, the base station sends response information to the UE in the downlink on the base station transmit beams B3 and B4. The response information includes the aforementioned preamble number, uplink scheduling information and In addition to TA, it can also include: the time when the base station receives the pilot signal and the signal quality. Since it is determined that the received preamble belongs to the preamble in the preamble resource group 2, it is possible to receive the preamble at the four preamble signal reception times. In this case, the base station may generate multiple (1, 2, 3, 4) random access responses. If multiple random access responses are generated, the base station can select one of them to send in downlink, or multiple (1, 2, 3, 4) to be sent in downlink at the same time. In this example, the base station sends random access responses to both B3 and B4. The random access responses sent in the two beams (ie, B3 and B4) may be the same or different. On the UE side, the UE can only receive random access responses in any one of the beams, or it can receive random access responses in both beams.

Based on the above introduction, the type of information contained in the preamble resource grouping information can also be the maximum bandwidth of the UE, the type of random access process selected by the UE, or the waveform used by the UE to send uplink data (such as single carrier or multi-carrier ), it can also be the signal strength received by the UE, etc., which will not be described one by one here. The information types contained in the leading resource group information may be one or more types, and the information types contained in different leading resource groups may be different or the same.

The examples in the foregoing embodiments involve beam scanning. This is because in order to further improve communication quality, the terminal equipment will use beam forming technology to generate simulated beams in different directions for receiving and transmitting data. Since network equipment, such as Transmission Reception Point (TRP) and terminal equipment, will use narrower analog beams for communication, better communication quality will only be achieved when the analog beams used for transmission and reception are aligned. Therefore, it was determined in the 3GPP RAN1 meeting that the beam scanning (BeamSweeping) process will be used in the 5G New Radio (NR) to determine the beam pair (transmitting beam and receiving beam) between the TRP and the terminal, as shown in Figure 6g , and monitor multiple beam pairs during the communication process to improve the robustness of the communication link. In addition, in order to increase cell coverage, a 5G NR cell may contain multiple TRPs, and each TRP can transmit multiple different analog beams.

Figure 6h is a schematic architecture diagram of an application scenario. The networking architecture shown in Figure 6h includes network equipment 21 and terminal equipment 22. The network device 21 communicates with the terminal device 22 using a relatively high frequency millimeter wave band. The millimeter wave band is usually a band greater than 6 GHz, for example, 28 GHz, 38 GHz, or an enhanced bandwidth (Enhanced Band) of a data plane covering a smaller area. , E-band) frequency band. The terminal device 22 covered by the network device 21 can communicate with the network device 21 using a higher frequency millimeter wave band. Wherein, the network device may include one or more transmitting and receiving points TRP, wherein the management of the TRP may be undertaken by the controller.

Based on the introduction of the foregoing method embodiments, embodiments of the present application also provide a network device, as shown in Figure 7, including:

The information sending unit 701 is configured to send the preamble resource group and the configuration information of the preamble resource group to the terminal device; the preamble resource group is a set of preambles, and the configuration information of the preamble resource group includes the information type and/or the information type of the preamble resource group. Configuration values for the above information types;

The preamble receiving unit 702 is configured to receive the preamble sent by the above-mentioned terminal device, where the preamble sent by the above-mentioned terminal device belongs to the above-mentioned set of preambles.

In an optional implementation manner, the information sending unit 701 is configured to send system information to the terminal device; the system information carries the preamble resource group and the configuration information of the preamble resource group.

In an optional implementation, as shown in Figure 8, the above network device also includes:

The information determining unit 801 is used to determine that the information on the terminal device side conforms to the information in the preceding resource group;

The response generation unit 802 is configured to generate a random access response based on the preamble sent by the terminal device and the information in the preamble resource group;

The response sending unit 803 is configured to send the random access response to the terminal device.

In an optional implementation, the above-mentioned preamble receiving unit 702 is configured to receive a preamble sent by the above-mentioned terminal device;

The above-mentioned response generation unit 802 is configured to generate a random access response based on a preamble sent by the above-mentioned terminal device and the configuration information of the preamble resource group in which the above-mentioned one preamble is located;

The above-mentioned response sending unit 803 is configured to send the above-mentioned one random access response to the above-mentioned terminal device on one beam;

or,

The above-mentioned preamble receiving unit 702 is used to receive at least i preambles sent by the above-mentioned terminal device, and the above-mentioned i is greater than or equal to 1;

The response generating unit 802 is configured to generate j random access responses based on at least i preambles sent by the terminal device and configuration information of the preamble resource group in which the at least i preambles are located, where the above is greater than or equal to 1 and less than or equal to i. ;

The above-mentioned response sending unit 803 is configured to send the above-mentioned j random access responses on one downlink beam when the above-mentioned j is 1; when the above-mentioned j is greater than 1 and less than or equal to i, on K beams Send L random access responses, the above L is greater than or equal to the above K, the above L random access responses belong to the random access responses among the above j random access responses, the above K is less than or equal to the above j.

In an optional implementation, the above set of preambles includes:

An orthogonal signal formed on time, frequency and preamble sequence, or a quasi-orthogonal signal formed on time, frequency and preamble sequence, or a low autocorrelation and low signal formed on time, frequency and preamble sequence. Cross-correlated signals.

In an optional implementation manner, the information types of the above-mentioned leading resource group include:

At least one of the maximum bandwidth, random access process type, waveform used for uplink transmission data, received signal strength, information carried in the random access response, and setting functions.

In an optional implementation, as shown in Figure 9, the above network device also includes:

The information configuration unit 901 is configured to configure the preamble resource group and the configuration information of the preamble resource group in the radio resource control layer when the network device requires the configuration information of the preamble resource group of the terminal device.

Based on the foregoing method embodiments, embodiments of the present application also provide a terminal device, as shown in Figure 10, including:

The information receiving unit 1001 is used for the terminal device to receive the preamble resource group from the network device and the configuration information of the foregoing preamble resource group; the foregoing preamble resource group is a set of preambles, and the configuration information of the foregoing preamble resource group includes the information type of the foregoing preamble resource group. and/or configuration values for the above information types;

The preamble selection unit 1002 is configured to select a preamble from the set of preambles when the terminal device conforms to the configuration information of the preamble resource group;

The preamble sending unit 1003 is used to send the selected preamble to the above-mentioned network device.

In an optional implementation, the above set of preambles includes:

An orthogonal signal formed on time, frequency and preamble sequence, or a quasi-orthogonal signal formed on time, frequency and preamble sequence, or a low autocorrelation and low signal formed on time, frequency and preamble sequence. Cross-correlated signals.

In an optional implementation manner, the information types of the above-mentioned leading resource group include:

At least one of the maximum bandwidth, random access process type, waveform used for uplink transmission data, received signal strength, information carried in the random access response, and setting functions.

In an optional implementation, as shown in Figure 11, the above terminal device also includes: a response receiving unit 1101;

The above-mentioned preamble selection unit 1002 is used to select one preamble from the above-mentioned set of preambles;

The above-mentioned preamble sending unit 1003 is used to send the selected preamble to the above-mentioned network device; the above-mentioned terminal device also includes:

The above-mentioned response receiving unit 1101 is used to receive one random access response sent by the above-mentioned network device on one beam;

or,

The above-mentioned preamble selection unit 1002 is used to select i preambles from the above-mentioned set of preambles;

The above-mentioned preamble sending unit 1003 is used to send the selected i preambles to the above-mentioned network device; the above-mentioned terminal device also includes:

The above-mentioned response receiving unit 1101 is configured to receive L random access responses on K beams, the above-mentioned L is greater than or equal to the above-mentioned K, and the above-mentioned L and the above-mentioned K are both less than or equal to the above-mentioned i.

Please refer to Figure 12. Figure 12 is a device provided by an embodiment of the present application. The device can be a network device or a terminal device. The device includes a processor 1201, a memory 1202, and a transceiver 1203. The above-mentioned processor 1201, memory 1202 and transceiver 1203 are connected to each other via a bus.

The transceiver 1203 may include a receiver and a transmitter, where the receiver is used to implement the function of receiving data and/or signaling in the method embodiment, and the transmitter is used to implement the function of sending data and/or signaling in the method embodiment.

Memory 1202 includes, but is not limited to, Random Access Memory (RAM), Read-Only Memory (ROM), Erasable Programmable Read Only Memory (EPROM), or portable Compact Disc Read-Only Memory (CD-ROM), this memory 1202 is used for related instructions and data. Transceiver 1203 is used to receive and send data and signaling.

The processor 1201 can be one or more central processing units (Central Processing Units, CPUs). In the case where the processor 1201 is a CPU, the CPU can be a single-core CPU or a multi-core CPU, used to implement the method. Functions other than the send/receive step in the example.

When the device is used as a network device, the processor 1201 is used to read the relevant instructions and data stored in the memory 1202 and cooperate with the transceiver 1203 and the memory 1202 to implement the aforementioned method executed by the network device. Among them, the transceiver 1203 can realize the related functions of the information sending unit 701, the preamble receiving unit 702 and the response sending unit 803 in Figures 7 to 9 under the control of the processor 1201; it can be implemented by the transmitter and the receiver respectively; others The functions are implemented by processor 1201.

When the device is used as a terminal device, the processor 1201 is used to read the relevant instructions and data stored in the above-mentioned memory 1202 and cooperate with the transceiver 1203 and the memory 1202 to implement the aforementioned method executed by the terminal device. Among them, the transceiver 1203 can realize the related functions of the information receiving unit 1001, the preamble sending unit 1003 and the response receiving unit 1101 in Figures 10 to 11 under the control of the processor 1201; it can be implemented by the transmitter and the receiver respectively; others The functions are implemented by processor 1201.

For specific functions and detailed descriptions of the processor 1201 and the transceiver 1203, please refer to the method embodiments and the corresponding device embodiments, and will not be described again here.

In this embodiment of the present application, when a terminal device is randomly accessed, the sooner the network device can obtain the information of the terminal device, the more conducive it is for the network device to make efficient scheduling; through the way of preamble resource grouping, according to The preamble returned by the terminal device can determine the capability information of the terminal device and the configuration information corresponding to the preamble resource group to which the returned preamble belongs; therefore, the information of the terminal device can be obtained quickly, reducing the random access delay with a small overhead. .

The embodiment of the present application also provides another image display control device, as shown in Figure 13. For convenience of explanation, only the parts related to the embodiment of the present application are shown. If the specific technical details are not disclosed, please refer to the implementation of the present application. Example method part. The terminal device can be any terminal device including a mobile phone, a tablet computer, a PDA (Personal Digital Assistant), a POS (Point of Sales, a sales terminal), a vehicle-mounted computer, etc. Taking the terminal device as a mobile phone as an example:

FIG. 13 shows a block diagram of a partial structure of a mobile phone related to the terminal device provided by the embodiment of the present application. Referring to Figure 13, the mobile phone includes: Radio Frequency (RF) circuit 1310, memory 1320, input unit 1330, display unit 1340, sensor 1350, audio circuit 1360, wireless fidelity (WiFi) module 1370, processor 1380 , and power supply 1390 and other components. Those skilled in the art can understand that the structure of the mobile phone shown in FIG. 13 does not limit the mobile phone, and may include more or fewer components than shown in the figure, or combine certain components, or arrange different components.

The following is a detailed introduction to each component of the mobile phone in conjunction with Figure 13:

The RF circuit 1310 can be used to receive and transmit information or signals during a call. In particular, after receiving downlink information from the base station, it is processed by the processor 1380; in addition, the designed uplink data is sent to the base station. Generally, the RF circuit 1310 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (LNA), a duplexer, and the like. Additionally, RF circuitry 1310 can communicate with networks and other devices through wireless communications. The above wireless communication can use any communication standard or protocol, including but not limited to Global System of Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (Code Division Multiple Access) , CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (SMS), etc.

The memory 1320 can be used to store software programs and modules. The processor 1380 executes various functional applications and data processing of the mobile phone by running the software programs and modules stored in the memory 1320 . The memory 1320 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the storage data area may store a program according to Data created by the use of mobile phones (such as audio data, phone books, etc.), etc. In addition, memory 1320 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

The input unit 1330 may be used to receive input numeric or character information, and generate key signal input related to user settings and function control of the mobile phone. Specifically, the input unit 1330 may include a touch panel 1331 and other input devices 1332. The touch panel 1331, also known as a touch screen, can collect the user's touch operations on or near the touch panel 1331 (for example, the user uses a finger, stylus, or any suitable object or accessory on or near the touch panel 1331. operation), and drive the corresponding connection device according to the preset program. Optionally, the touch panel 1331 may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact point coordinates, and then sends it to the touch controller. to the processor 1380, and can receive commands sent by the processor 1380 and execute them. In addition, the touch panel 1331 can be implemented using various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1331, the input unit 1330 may also include other input devices 1332. Specifically, other input devices 1332 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), trackball, mouse, joystick, etc.

The display unit 1340 may be used to display information input by the user or information provided to the user as well as various menus of the mobile phone. The display unit 1340 may include a display panel 1341. Optionally, the display panel 1341 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. Further, the touch panel 1331 can cover the display panel 1341. When the touch panel 1331 detects a touch operation on or near it, it is sent to the processor 1380 to determine the type of the touch event. The processor 1380 then determines the type of the touch event. Type provides corresponding visual output on display panel 1341. Although in Figure 13, the touch panel 1331 and the display panel 1341 are used as two independent components to implement the input and input functions of the mobile phone, in some embodiments, the touch panel 1331 and the display panel 1341 can be integrated. Realize the input and output functions of mobile phone.

The mobile phone may also include at least one sensor 1350, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor. The ambient light sensor may adjust the brightness of the display panel 1341 according to the brightness of the ambient light. The proximity sensor may close the display panel 1341 and/or when the mobile phone is moved to the ear. or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three axes). It can detect the magnitude and direction of gravity when stationary. It can be used to identify applications of mobile phone posture (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared sensor, etc. that can be configured on the mobile phone, we will not mention them here. Repeat.

The audio circuit 1360, speaker 1361, and microphone 1362 can provide an audio interface between the user and the mobile phone. The audio circuit 1360 can transmit the electrical signal converted from the received audio data to the speaker 1361, and the speaker 1361 converts it into a sound signal for output; on the other hand, the microphone 1362 converts the collected sound signal into an electrical signal, and the audio circuit 1360 After receiving, it is converted into audio data, and then processed by the audio data output processor 1380, and then sent to, for example, another mobile phone through the RF circuit 1310, or the audio data is output to the memory 1320 for further processing.

WiFi is a short-distance wireless transmission technology. The mobile phone can help users send and receive emails, browse web pages, and access streaming media through the WiFi module 1370. It provides users with wireless broadband Internet access. Although FIG. 13 shows the WiFi module 1370, it can be understood that it is not a necessary component of the mobile phone and can be omitted as needed without changing the essence of the invention.

The processor 1380 is the control center of the mobile phone, using various interfaces and lines to connect various parts of the entire mobile phone, and executing software programs and/or modules stored in the memory 1320 by running or executing them, and calling data stored in the memory 1320. Various functions of the mobile phone and processing data, thereby conducting overall monitoring of the mobile phone. Optionally, the processor 1380 may include one or more processing units; preferably, the processor 1380 may integrate an application processor and a modem processor, where the application processor mainly processes operating systems, user interfaces, application programs, etc. , the modem processor mainly handles wireless communications. It can be understood that the above modem processor may not be integrated into the processor 1380.

The mobile phone also includes a power supply 1390 (such as a battery) that supplies power to various components. Preferably, the power supply can be logically connected to the processor 1380 through a power management system, so that functions such as charging, discharging, and power consumption management can be implemented through the power management system.

Although not shown, the mobile phone may also include a camera, a Bluetooth module, etc., which will not be described in detail here.

The method flow executed by the terminal device in the foregoing embodiment may be based on the hardware structure provided by this embodiment.

Those of ordinary skill in the art can appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, computer software, or a combination of both. In order to clearly illustrate the relationship between hardware and software Interchangeability, in the above description, the composition and steps of each example have been generally described according to functions. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled technicians may use different methods for each specific application to achieve the described functions.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of each unit described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

In the several embodiments provided in this application, it should be understood that the disclosed network devices and terminal devices and their corresponding methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the above units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or may be Integrated into another system, or some features can be ignored, or not implemented. In addition, the coupling or direct coupling or communication connection between each other shown or discussed may be an indirect coupling or communication connection through some interfaces, devices or units, or may be electrical, mechanical or other forms of connection.

The units described above as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present application.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The above-mentioned computer program product includes one or more computer instructions. When the above computer program instructions are loaded and executed on a computer, the above-mentioned processes or functions according to the embodiments of the present application are generated in whole or in part. The above-mentioned computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The above computer instructions can be stored in a computer readable storage medium, or transmitted from one computer readable storage medium to another computer readable storage medium. For example, the above computer instructions can be transmitted from a website, computer, server or data center through a wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) to another website, computer, server or data center. The above-mentioned 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 or data center integrated with one or more available media. The above available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), etc.

Claims (25)

1. A leading resource grouping method, characterized by including: The network device sends the configuration information of the leading resource group to the terminal device; the leading resource group is a set of leading resources, and the configuration information of the leading resource group includes the information type of the leading resource group and the configuration value of the information type; The network device receives the preamble sent by the terminal device, and the preamble sent by the terminal device belongs to the set of preambles. 2. The method according to claim 1, characterized in that the network device sends the configuration information of the preamble resource group to the terminal device; including: The network device sends system information to the terminal device; the system information carries configuration information of the preamble resource grouping. 3. The method according to claim 1 or 2, characterized in that the method further includes: The network device receives the preamble sent by the terminal device; generates a random access response according to the preamble and the information type of the preamble resource group and/or the configuration value of the information type, and sends the random access response to the terminal device. Enter response. 4. The method according to claim 3, wherein the network device receiving the preamble sent by the terminal device includes: The network device receives a preamble sent by the terminal device; Alternatively, the network device receives at least i preambles sent by the terminal device, and i is greater than 1; Generating a random access response based on the preamble and the information type of the preamble resource group and/or the configuration value of the information type, and sending the random access response to the terminal device includes: j random access responses are generated based on at least i preambles sent by the terminal device and configuration information of the preamble resource group in which the at least i preambles are located, where j is greater than or equal to 1 and less than or equal to i. 5. The method according to claim 1 or 2, characterized in that the information type of the leading resource group includes: At least one of the maximum bandwidth, random access process type, waveform used for uplink transmission data, received signal strength, information carried in the random access response, and setting functions. 6. The method according to claim 1 or 2, characterized in that, before the network device sends the configuration information of the preamble resource group to the terminal device, the method further includes: When the network device needs the configuration information of the preamble resource group of the terminal device, the network device configures the configuration information of the preamble resource group in the radio resource control layer. 7. A leader selection method, characterized by including: The terminal device receives the configuration information of the leading resource group from the network device; the leading resource group is a set of leading resources, and the configuration information of the leading resource group includes the information type of the leading resource group and the configuration value of the information type; The terminal device sends a preamble to the network device, and the preamble sent by the terminal device belongs to the set of preambles. 8. The method according to claim 7, characterized in that the information type of the leading resource group includes: At least one of the maximum bandwidth, random access process type, waveform used for uplink transmission data, received signal strength, information carried in the random access response, and setting functions. 9. The method according to claim 7 or 8, characterized in that, The terminal device sending a preamble to the network device includes: selecting one preamble from the set of preambles, and sending the selected one preamble to the network device; the method also includes: receiving on one beam 1 random access response sent by the network device; Alternatively, the terminal device sending a preamble to the network device includes: selecting i preambles from the set of preambles, and sending the selected i preambles to the network device; the method further includes: L random access responses are received, the L is greater than or equal to the K, and both the L and the K are less than or equal to the i. 10. A network device, characterized by including: An information sending unit, configured to send the configuration information of the leading resource group to the terminal device; the leading resource group is a set of leading resources, and the configuration information of the leading resource group includes the information type of the leading resource group and the information type of the leading resource group. configuration value; A preamble receiving unit is configured to receive a preamble sent by the terminal device, where the preamble sent by the terminal device belongs to the set of preambles. 11. The network device according to claim 10, wherein the information sending unit is configured to send system information to the terminal device; the system information carries configuration information of the preamble resource grouping. 12. The network device according to claim 10 or 11, characterized in that the network device further includes: A preamble receiving unit, configured to receive the preamble sent by the terminal device; A response generation unit configured to generate a random access response according to the information type and/or the configuration value of the information type of the preamble and the preamble resource group; A response sending unit, configured to send the random access response to the terminal device. 13. The network device according to claim 12, characterized in that, The preamble receiving unit is configured to receive one preamble sent by the terminal device, or to receive at least i preambles sent by the terminal device, where i is greater than or equal to 1; The response generation unit is configured to generate j random access responses based on at least i preambles sent by the terminal device and configuration information of the preamble resource group in which the at least i preambles are located, where j is greater than or equal to 1 and Less than or equal to i. 14. The network device according to claim 10 or 11, characterized in that the information type of the leading resource group includes: At least one of the maximum bandwidth, random access process type, waveform used for uplink transmission data, received signal strength, information carried in the random access response, and setting functions. 15. The network device according to claim 10 or 11, characterized in that the network device further includes: An information configuration unit configured to configure the configuration information of the preamble resource group in the radio resource control layer when the network device requires the configuration information of the preamble resource group of the terminal device. 16. A terminal device, characterized in that it includes: An information receiving unit, configured for the terminal device to receive the configuration information of the leading resource group from the network device; the leading resource group is a set of leading resources, and the configuration information of the leading resource group includes the information type of the leading resource group and the Configuration value of information type; A preamble sending unit, configured for the terminal device to send a preamble to the network device, where the preamble sent by the terminal device belongs to the set of preambles. 17. The terminal device according to claim 16, characterized in that the information type of the preamble resource group includes: At least one of the maximum bandwidth, random access process type, waveform used for uplink transmission data, received signal strength, information carried in the random access response, and setting functions. 18. The terminal device according to claim 16 or 17, characterized in that the terminal device further includes: a response receiving unit; A leader selection unit, configured to select a leader from the set of leaders; The preamble sending unit is used to send the selected preamble to the network device; the terminal device also includes: The response receiving unit is configured to receive one random access response sent by the network device on one beam; or, The leader selection unit is used to select i leaders from the set of leaders; The preamble sending unit is used to send the selected i preambles to the network device; the terminal device also includes: The response receiving unit is configured to receive L random access responses on K beams, where L is greater than or equal to K, and both L and K are less than or equal to i. 19. A leading resource grouping method, characterized by including: The network device sends configuration information of the leading resource group to the terminal device, where the leading resource group is a set of leading resources, and the configuration information of the leading resource group includes the information type of the leading resource group and the configuration value of the information type; The network device receives multiple preambles sent by the terminal device, and the multiple preambles belong to the set of preambles; The network device sends a random access response to the terminal device. 20. A leading resource grouping method, characterized by including: The terminal device receives the configuration information of the leader resource group from the network device, the leader resource group is a set of leaders, and the configuration information of the leader resource group includes the information type of the leader resource group and the configuration value of the information type; The terminal device sends multiple preambles to the network device, and the multiple preambles belong to the set of preambles; The terminal device receives a random access response from the network device. 21. A network device, characterized by including: An information sending unit, configured to send the configuration information of the leading resource group to the terminal device, where the leading resource group is a set of leading resources, and the configuration information of the leading resource group includes the information type of the leading resource group and the information type of the leading resource group. configuration value; A preamble receiving unit, configured to receive multiple preambles sent by the terminal device, where the preambles sent by the terminal device belong to the set of preambles; A response sending unit, configured to send a random access response to the terminal device. 22. A terminal device, characterized in that it includes: An information receiving unit, configured for the terminal device to receive the configuration information of the leading resource group from the network device, where the leading resource group is a set of leading resources, and the configuration information of the leading resource group includes the information type of the leading resource group and the Configuration value of information type; A preamble sending unit, configured to send multiple preambles to the network device, where the multiple preambles belong to the set of preambles; A response receiving unit, configured to receive a random access response from the network device. 23. A communication device, characterized by comprising a processor, the processor being configured to, when executing instructions, cause the communication device to execute the method according to any one of claims 1 to 9, Alternatively, the communication device is caused to perform the method as claimed in claim 19 or 20. 24. A chip, characterized in that the chip includes a processor and a communication interface, the processor reads instructions stored in the memory through the communication interface, and executes the instructions as described in any one of claims 1 to 9 method, or perform the method as claimed in claim 19 or 20. 25. A computer-readable storage medium, characterized in that instructions are stored in the computer-readable storage medium, and when run on a computer, the computer is caused to execute the method described in any one of claims 1 to 9. Method, or when the instructions are executed, they cause the computer to perform the method of claim 19 or 20.