CN107949055A - A kind of method of definite mixed time slot type and base station - Google Patents
A kind of method of definite mixed time slot type and base station Download PDFInfo
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Abstract
Description
技术领域technical field
本发明涉及通信领域，具体涉及一种确定混合时隙类型的方法及基站。The invention relates to the communication field, in particular to a method and a base station for determining the mixed time slot type.
背景技术Background technique
随着移动互联网和物联网的持续发展，5G(5th Generation，第五代移动通信技术)技术也根据不断增加的需求对自身的发展提出了相应的要求，在5G技术中，根据现有的需求对移动通信场景进行了划分，包括eMBB(enhanced Mobile Broadband，增强移动宽带)、mMTC(海量机器类通信)和URLLC(超高可靠低时延通信)等场景。With the continuous development of the mobile Internet and the Internet of Things, 5G (5th Generation , fifth-generation mobile communication technology) technology also puts forward corresponding requirements for its own development according to the increasing demand. In 5G technology, according to the existing The requirement divides mobile communication scenarios, including eMBB (enhanced Mobile Broadband, enhanced mobile broadband), mMTC (massive machine type communication) and URLLC (ultra-reliable low-latency communication) and other scenarios.
在URLLC场景中，通信时延要求比较高，而现有的TDD(Time Division Duplexing，时分双工)帧结构中，通信时延比较高，主要包括两个方面：一是上行授权在下行子帧发送完以后，需要等到上行子帧到达后，才能发送上行数据；当终端接收到下行数据后，需要等到上行子帧到达后，才能进行相应的ACK/NACK反馈，上述TDD帧结构的限制可导致时延增加；另一方面，现有的TDD结构不灵活，需要设计一种动态的TDD结构，根据业务的变化进行动态的调整，以提高系统的频谱效率。因此，3GPP(the 3rd Generation PartnershipProject，第三代合作伙伴计划)推进组决定在5G技术中，对TDD的帧结构进行重新规划，以降低通信时延，提高系统的频谱效率。In the URLLC scenario, the communication delay requirement is relatively high, but in the existing TDD (Time Division Duplexing, Time Division Duplex) frame structure, the communication delay is relatively high, mainly including two aspects: First, the uplink authorization is in the downlink subframe After sending, it needs to wait until the uplink subframe arrives before sending uplink data; after receiving the downlink data, the terminal needs to wait until the uplink subframe arrives before performing corresponding ACK/NACK feedback. The limitation of the above TDD frame structure can lead to The time delay increases; on the other hand, the existing TDD structure is inflexible, so it is necessary to design a dynamic TDD structure and make dynamic adjustments according to service changes to improve the spectrum efficiency of the system. Therefore, the 3GPP (the 3rd Generation Partnership Project, 3rd Generation Partnership Project) promotion group decided to re-plan the TDD frame structure in 5G technology to reduce communication delay and improve system spectrum efficiency.
在目前的5G技术讨论中，三种时隙结构被大部分公司提出。图1为三种时隙的结构示意图，参看图1，所述三种时隙包括纯下行时隙、纯上行时隙和混合时隙，混合时隙包括两种类型：mixed DL time domain structure(混合下行时域结构)和mixed UL time domainstructure(混合上行时域结构)，分别用于传输下行业务和上行业务。In the current 5G technology discussion, three time slot structures are proposed by most companies. Figure 1 is a schematic structural diagram of three time slots, referring to Figure 1, the three time slots include pure downlink time slots, pure uplink time slots and mixed time slots, mixed time slots include two types: mixed DL time domain structure ( Mixed downlink time domain structure) and mixed UL time domain structure (mixed uplink time domain structure), are used to transmit downlink services and uplink services respectively.
然而，在5G技术讨论中，上下行时隙和混合时隙如何放置未做进一步确定，即使采用4G中确定的上下行配比方案，其中的混合时隙使用哪种类型还需要进一步讨论。However, in the discussion of 5G technology, how to place uplink and downlink time slots and mixed time slots has not been further determined. Even if the uplink and downlink ratio scheme determined in 4G is adopted, which type of mixed time slots to use needs further discussion.
因此，如何提出一种方法，可确定使用哪种混合时隙类型，具有十分重要的意义。Therefore, how to propose a method to determine which hybrid time slot type to use is of great significance.
发明内容Contents of the invention
针对现有技术中的缺陷，本发明实施例提供一种确定混合时隙类型的方法及基站。Aiming at the defects in the prior art, embodiments of the present invention provide a method and a base station for determining a hybrid time slot type.
一方面，本发明实施例提出一种确定混合时隙类型的方法，包括：On the one hand, an embodiment of the present invention proposes a method for determining a hybrid time slot type, including:
在配置混合时隙的时刻获取需要传输的上行业务的业务量以及需要传输的下行业务的业务量；Obtain the traffic volume of the uplink service to be transmitted and the traffic volume of the downlink service to be transmitted at the time of configuring the hybrid time slot;
根据所述需要传输的上行业务的业务量以及需要传输的下行业务的业务量确定需要配置的混合时隙的类型。The type of the mixed time slot to be configured is determined according to the traffic volume of the uplink traffic to be transmitted and the traffic volume of the downlink traffic to be transmitted.
本发明实施例提供的确定混合时隙类型的方法，由于在配置混合时隙时，可根据业务传输情况灵活地确定需要配置的混合时隙的类型，因此，增加了时隙调度的灵活性，进一步提高了频谱效率。The method for determining the mixed time slot type provided by the embodiment of the present invention can flexibly determine the type of mixed time slot to be configured according to the service transmission situation when configuring the mixed time slot, thus increasing the flexibility of time slot scheduling, The spectral efficiency is further improved.
另一方面，本发明实施例提出一种确定混合时隙类型的基站，包括：On the other hand, an embodiment of the present invention proposes a base station for determining a hybrid time slot type, including:
业务量获取模块，用于在配置混合时隙的时刻获取需要传输的上行业务的业务量以及需要传输的下行业务的业务量；A traffic acquisition module, configured to acquire the traffic of the uplink service to be transmitted and the traffic of the downlink service to be transmitted at the time of configuring the hybrid time slot;
混合时隙配置模块，用于根据所述需要传输的上行业务的业务量以及需要传输的下行业务的业务量确定需要配置的混合时隙的类型。The hybrid time slot configuration module is configured to determine the type of the hybrid time slot to be configured according to the traffic volume of the uplink traffic to be transmitted and the traffic volume of the downlink traffic to be transmitted.
本发明实施例提供的确定混合时隙类型的基站，由于在配置混合时隙时，可根据业务传输情况灵活地确定需要配置的混合时隙的类型，因此，增加了时隙调度的灵活性，进一步提高了频谱效率。The base station for determining the mixed time slot type provided by the embodiment of the present invention can flexibly determine the type of mixed time slot to be configured according to the service transmission situation when configuring the mixed time slot, thus increasing the flexibility of time slot scheduling, The spectral efficiency is further improved.
附图说明Description of drawings
图1为三种时隙的结构示意图；Fig. 1 is the structure diagram of three kinds of time slots;
图2为本发明确定混合时隙类型的方法的实施例流程示意图；FIG. 2 is a schematic flow chart of an embodiment of a method for determining a hybrid time slot type according to the present invention;
图3为本发明确定混合时隙类型的基站的实施例结构示意图。Fig. 3 is a schematic structural diagram of an embodiment of a base station for determining a mixed time slot type according to the present invention.
具体实施方式Detailed ways
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
图2为本发明确定混合时隙类型的方法的实施例流程示意图，参看图2，本发明实施例公开一种确定混合时隙类型的方法，包括：Fig. 2 is a schematic flow chart of an embodiment of a method for determining a mixed time slot type in the present invention. Referring to Fig. 2, an embodiment of the present invention discloses a method for determining a mixed time slot type, including:
S1、在配置混合时隙的时刻获取需要传输的上行业务的业务量以及需要传输的下行业务的业务量；S1. Obtain the traffic volume of the uplink service to be transmitted and the traffic volume of the downlink service to be transmitted at the time of configuring the hybrid time slot;
S2、根据所述需要传输的上行业务的业务量以及需要传输的下行业务的业务量确定需要配置的混合时隙的类型。S2. Determine the type of the hybrid time slot to be configured according to the traffic volume of the uplink traffic to be transmitted and the traffic volume of the downlink traffic to be transmitted.
本发明实施例提供的确定混合时隙类型的方法，由于在配置混合时隙时，可根据业务传输情况灵活地确定需要配置的混合时隙的类型，因此，增加了时隙调度的灵活性，进一步提高了频谱效率。The method for determining the mixed time slot type provided by the embodiment of the present invention can flexibly determine the type of mixed time slot to be configured according to the service transmission situation when configuring the mixed time slot, thus increasing the flexibility of time slot scheduling, The spectral efficiency is further improved.
具体地，在步骤S2中，若在配置混合时隙的时刻，所述需要传输的上行业务的业务量大于所述需要传输的下行业务的业务量，则基站将所述混合时隙配置成混合上行时域结构(mixed UL time domain structure)；Specifically, in step S2, if at the time of configuring the mixed time slot, the traffic volume of the uplink service to be transmitted is greater than the traffic volume of the downlink service to be transmitted, the base station configures the mixed time slot as a mixed Uplink time domain structure (mixed UL time domain structure);
若在配置混合时隙的时刻，所述需要传输的下行业务的业务量大于所述需要传输的上行业务的业务量，则基站将所述混合时隙配置成混合下行时域结构(mixed DL timedomain structure)。If at the time of configuring the mixed time slot, the traffic volume of the downlink service to be transmitted is greater than the traffic volume of the uplink service to be transmitted, the base station configures the mixed time slot into a mixed downlink time domain structure (mixed DL time domain structure).
进一步地，在步骤S2之后，基站根据由预设的初始值生成的伪随机序列对所述混合时隙进行加扰，以区分所述混合时隙。Further, after step S2, the base station scrambles the mixed time slots according to a pseudo-random sequence generated by a preset initial value, so as to distinguish the mixed time slots.
具体地，基站根据由预设的第一初始值cinit，UL生成的第一伪随机序列，对混合上行时域结构的混合时隙进行加扰，以区分所述混合上行时域结构的混合时隙。其中，基站根据第一伪随机序列，对混合上行时域结构的混合时隙的控制信道区域中的NR(New RadioAccess Technology，新型无线接入技术)PCFICH(Physical Control Format IndicatorChannel，物理层格式指示信道)信道进行加扰；cinit，UL＝cinit，DL+Δc，cinit，DL为第二初始值；Δc为相对于所述第二初始值的偏移量，可由基站直接配置。Specifically, the base station scrambles the mixed time slots of the mixed uplink time-domain structure according to the first pseudo-random sequence generated by the preset first initial value c init, UL , so as to distinguish the mixed time slots of the mixed uplink time-domain structure time slot. Wherein, according to the first pseudo-random sequence, the base station performs an NR (New Radio Access Technology, new wireless access technology) PCFICH (Physical Control Format Indicator Channel, Physical Layer Format Indicator Channel) in the control channel area of the mixed time slot of the mixed uplink time domain structure. ) channel for scrambling; c init, UL = c init, DL + Δc, c init, DL is the second initial value; Δc is an offset relative to the second initial value, which can be directly configured by the base station.
基站根据由预设的第二初始值cinit，DL生成的第二伪随机序列，对混合下行时域结构的混合时隙进行加扰，以区分所述混合下行时域结构的混合时隙。其中，基站根据第二伪随机序列，对混合下行时域结构的混合时隙的控制信道区域中的NR PCFICH信道进行加扰。The base station scrambles the mixed time slots of the mixed downlink time domain structure according to the second pseudo-random sequence generated by the preset second initial value cinit,DL , so as to distinguish the mixed time slots of the mixed downlink time domain structure. Wherein, the base station scrambles the NR PCFICH channel in the control channel region of the mixed time slot of the mixed downlink time domain structure according to the second pseudo-random sequence.
本发明实施例提供的确定混合时隙类型的方法，不仅灵活地确定了混合时隙的类型，提高了频谱效率，还由于在混合时隙的NR PCFICH信道中，通过对NR PCFICH信道使用初始化值不同的两个加扰序列进行加扰，因此还实现了不同混合时隙类型的区分。The method for determining the mixed time slot type provided by the embodiment of the present invention not only flexibly determines the type of the mixed time slot and improves the spectrum efficiency, but also uses the initialization value for the NR PCFICH channel in the NR PCFICH channel of the mixed time slot Two different scrambling sequences are used for scrambling, so the distinction of different mixed slot types is also realized.
图3为本发明确定混合时隙类型的基站的实施例结构示意图，参看图3，本发明实施例还提出一种确定混合时隙类型的基站，包括：业务量获取模块1以及混合时隙配置模块2；Fig. 3 is a schematic structural diagram of an embodiment of a base station for determining a mixed time slot type according to the present invention. Referring to Fig. 3, an embodiment of the present invention also proposes a base station for determining a mixed time slot type, including: a traffic acquisition module 1 and a mixed time slot configuration module 2;
业务量获取模块1，用于在配置混合时隙的时刻获取需要传输的上行业务的业务量以及需要传输的下行业务的业务量；The traffic acquisition module 1 is used to acquire the traffic volume of the uplink service to be transmitted and the traffic volume of the downlink service to be transmitted at the time of configuring the hybrid time slot;
混合时隙配置模块2，用于根据所述需要传输的上行业务的业务量以及需要传输的下行业务的业务量确定需要配置的混合时隙的类型。The hybrid time slot configuration module 2 is configured to determine the type of the hybrid time slot to be configured according to the traffic volume of the uplink traffic to be transmitted and the traffic volume of the downlink traffic to be transmitted.
本发明实施例提供的确定混合时隙类型的基站，由于在配置混合时隙时，可根据业务传输情况灵活地确定需要配置的混合时隙的类型，因此，增加了时隙调度的灵活性，进一步提高了频谱效率。The base station for determining the mixed time slot type provided by the embodiment of the present invention can flexibly determine the type of mixed time slot to be configured according to the service transmission situation when configuring the mixed time slot, thus increasing the flexibility of time slot scheduling, The spectral efficiency is further improved.
所述混合时隙配置模块2具体用于：The hybrid time slot configuration module 2 is specifically used for:
若在配置混合时隙的时刻，所述需要传输的上行业务的业务量大于所述需要传输的下行业务的业务量，则所述混合时隙配置模块2将所述混合时隙配置成混合上行时域结构(mixed UL time domain structure)；If at the time of configuring the hybrid time slot, the traffic volume of the uplink service to be transmitted is greater than the traffic volume of the downlink service to be transmitted, the hybrid time slot configuration module 2 configures the hybrid time slot as a hybrid uplink Time domain structure (mixed UL time domain structure);
若在配置混合时隙的时刻，所述需要传输的下行业务的业务量大于所述需要传输的上行业务的业务量，则所述混合时隙配置模块2将所述混合时隙配置成混合下行时域结构(mixed DL time domain structure)。If at the time of configuring the mixed time slot, the traffic volume of the downlink service to be transmitted is greater than the traffic volume of the uplink business to be transmitted, the hybrid time slot configuration module 2 configures the hybrid time slot as a hybrid downlink Time domain structure (mixed DL time domain structure).
进一步地，所述基站还包括混合时隙加扰模块，用于根据由预设的初始值生成的伪随机序列对所述混合时隙进行加扰，以区分所述混合时隙。Further, the base station further includes a mixed time slot scrambling module, configured to scramble the mixed time slots according to a pseudo-random sequence generated by a preset initial value, so as to distinguish the mixed time slots.
所述混合时隙加扰模块具体用于：The hybrid time slot scrambling module is specifically used for:
根据由预设的第一初始值cinit，UL生成的第一伪随机序列，对混合上行时域结构的混合时隙进行加扰，以区分所述混合上行时域结构的混合时隙。其中，所述混合时隙加扰模块根据第一伪随机序列，对混合上行时域结构的混合时隙的控制信道区域中的NR PCFICH信道进行加扰；cinit，UL＝cinit，DL+Δc，cinit，DL为第二初始值；Δc为相对于所述第二初始值的偏移量，可由基站直接配置。According to the first pseudo-random sequence generated by the preset first initial value c init, UL , the mixed time slots of the mixed uplink time domain structure are scrambled, so as to distinguish the mixed time slots of the mixed uplink time domain structure. Wherein, the mixed time slot scrambling module scrambles the NR PCFICH channel in the control channel area of the mixed time slot of the mixed uplink time domain structure according to the first pseudo-random sequence; c init, UL = c init, DL + Δc, c init, DL are second initial values; Δc is an offset relative to the second initial value, which can be directly configured by the base station.
所述混合时隙加扰模块根据由预设的第二初始值cinit，DL生成的第二伪随机序列，对混合下行时域结构的混合时隙进行加扰，以区分所述混合下行时域结构的混合时隙。其中，所述混合时隙加扰模块根据第二伪随机序列，对混合下行时域结构的混合时隙的控制信道区域中的NR PCFICH信道进行加扰。The mixed time slot scrambling module scrambles the mixed time slot of the mixed downlink time domain structure according to the second pseudo-random sequence generated by the preset second initial value c init, DL , so as to distinguish the mixed downlink time domain Mixed slots for domain structures. Wherein, the mixed time slot scrambling module scrambles the NR PCFICH channel in the control channel region of the mixed time slot of the mixed downlink time domain structure according to the second pseudo-random sequence.
本发明实施例提供的确定混合时隙类型的基站，不仅灵活地确定了混合时隙的类型，提高了频谱效率，还由于在混合时隙的NR PCFICH信道中，通过对NR PCFICH信道使用初始化值不同的两个加扰序列进行加扰，因此还实现了不同混合时隙类型的区分。The base station for determining the mixed time slot type provided by the embodiment of the present invention not only flexibly determines the type of the mixed time slot and improves the spectrum efficiency, but also uses the initialization value for the NR PCFICH channel in the NR PCFICH channel of the mixed time slot Two different scrambling sequences are used for scrambling, so the distinction of different mixed slot types is also realized.
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims (8)
- A kind of 1. method of definite mixed time slot type, it is characterised in that including：The downlink business that the portfolio for the uplink service that acquisition needs to transmit and needs transmit at the time of mixed time slot is configured Portfolio；The portfolio of the downlink business transmitted according to the portfolio of the uplink service for needing to transmit and needs determines needs The type of the mixed time slot of configuration.
- 2. the according to the method described in claim 1, it is characterized in that, business according to the uplink service for needing to transmit Amount and the portfolio for the downlink business for needing to transmit determine that the type of the mixed time slot needed to configure includes：If at the time of mixed time slot is configured, the portfolio of the uplink service for needing to transmit is more than the needs and transmits down The portfolio of industry business, then be configured to mixing uplink spatial structure by the mixed time slot；If at the time of mixed time slot is configured, the portfolio of downlink business for needing to transmit be more than the needs transmit it is upper The portfolio of industry business, then be configured to mixing downlink spatial structure by the mixed time slot.
- 3. according to the method described in claim 2, it is characterized in that, in the industry according to the uplink service for needing to transmit After the portfolio for the downlink business that business amount and needs transmit determines the type of the mixed time slot needed to configure, further include：The mixed time slot is scrambled according to by the pseudo-random sequence that default initial value generates, during distinguishing the mixing Gap.
- 4. the according to the method described in claim 3, it is characterized in that, pseudorandom sequence that the basis is generated by default initial value Row scramble the mixed time slot, are included with distinguishing the mixed time slot：According to the first pseudo-random sequence generated by default first initial value, to mix the mixed time slot of uplink spatial structure into Row scrambling, to distinguish the mixed time slot of the mixing uplink spatial structure；According to the second pseudo-random sequence generated by default second initial value, to mix the mixed time slot of downlink spatial structure into Row scrambling, to distinguish the mixed time slot of the mixing downlink spatial structure.
- A kind of 5. base station, it is characterised in that including：Portfolio acquisition module, for obtained at the time of mixed time slot is configured the portfolio of uplink service that needs to transmit and Need the portfolio of downlink business transmitted；Mixed time slot configuration module, the downlink transmitted for the portfolio according to the uplink service for needing to transmit and needs The portfolio of business determines the type of the mixed time slot needed to configure.
- 6. base station according to claim 5, it is characterised in that the mixed time slot configuration module is specifically used for：If at the time of mixed time slot is configured, the portfolio of the uplink service for needing to transmit is more than the needs and transmits down The portfolio of industry business, then be configured to mixing uplink spatial structure by the mixed time slot；If at the time of mixed time slot is configured, the portfolio of downlink business for needing to transmit be more than the needs transmit it is upper The portfolio of industry business, then be configured to mixing downlink spatial structure by the mixed time slot.
- 7. base station according to claim 6, it is characterised in that further include：Mixed time slot scrambling module, for being carried out according to by the pseudo-random sequence that default initial value generates to the mixed time slot Scrambling, to distinguish the mixed time slot.
- 8. base station according to claim 7, it is characterised in that the mixed time slot scrambling module is specifically used for：According to the first pseudo-random sequence generated by default first initial value, to mix the mixed time slot of uplink spatial structure into Row scrambling, to distinguish the mixed time slot of the mixing uplink spatial structure；According to the second pseudo-random sequence generated by default second initial value, to mix the mixed time slot of downlink spatial structure into Row scrambling, to distinguish the mixed time slot of the mixing downlink spatial structure.
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| US20100303045A1 (en) * | 2008-02-15 | 2010-12-02 | Research In Motion Limited | Systems and methods for assignment and allocation of mixed-type combinations of slots |
| US20160020891A1 (en) * | 2014-07-21 | 2016-01-21 | Intel IP Corporation | System and method for tdd communications |
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| US20100303045A1 (en) * | 2008-02-15 | 2010-12-02 | Research In Motion Limited | Systems and methods for assignment and allocation of mixed-type combinations of slots |
| CN101729138A (en) * | 2008-10-15 | 2010-06-09 | 大唐移动通信设备有限公司 | Uplink and downlink transmission method, base station and user equipment |
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