WO2019127077A1 - 一种srb传输方法和装置 - Google Patents

一种srb传输方法和装置 Download PDF

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Publication number
WO2019127077A1
WO2019127077A1 PCT/CN2017/118898 CN2017118898W WO2019127077A1 WO 2019127077 A1 WO2019127077 A1 WO 2019127077A1 CN 2017118898 W CN2017118898 W CN 2017118898W WO 2019127077 A1 WO2019127077 A1 WO 2019127077A1
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Prior art keywords
layer
mode
rlc layer
srb
srb data
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PCT/CN2017/118898
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English (en)
French (fr)
Inventor
石聪
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Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to JP2020536132A priority Critical patent/JP2021514562A/ja
Priority to EP17936539.0A priority patent/EP3735098B1/en
Priority to PCT/CN2017/118898 priority patent/WO2019127077A1/zh
Priority to KR1020207020624A priority patent/KR20200100731A/ko
Priority to CN201780097736.7A priority patent/CN111466153A/zh
Priority to AU2017444445A priority patent/AU2017444445A1/en
Publication of WO2019127077A1 publication Critical patent/WO2019127077A1/zh
Priority to US16/912,520 priority patent/US11240873B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/08—Upper layer protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to an SRB transmission method and apparatus.
  • LTE Long Term Evolution
  • 5G technologies consider the deployment of licensed and unlicensed bands.
  • the LTE unlicensed technology is designed based on the assumption that the Pcell (primary cell) is on the licensed frequency band.
  • the SRB Signaling Radio Bearer
  • the SRB is Transmission can guarantee the delay and transmission success rate.
  • NR New Radio unlicensed technology will also consider implementing Pcells in unlicensed bands.
  • the SRB is configured in the AM (Radio Link Control) layer of the RLC (Radio Link Control) layer, and the RLC layer cannot distinguish between SRB and DRB (Data Radio Bearer) data.
  • AM Radio Link Control
  • RLC Radio Link Control
  • DRB Data Radio Bearer
  • ARQ Automatic Repeat-reQuest
  • LBT Listen Before Talk
  • the present invention provides an SRB transmission method and apparatus to shorten the transmission delay of SRB in the NR unlicensed band technology.
  • an embodiment of the present invention provides an SRB transmission method, where the method includes:
  • the RLC layer unacknowledged UM mode is used for all or part of the SRB data.
  • the adopting the RLC layer UM mode for all or part of the SRB data according to the configuration includes:
  • the SRB data of the RLC layer UM mode is indicated at the RRC layer, and the indication information is delivered to the RLC layer via the PDCP layer.
  • the SRB data indicating that the RLC layer UM mode is used includes:
  • the SRB data in the RLC layer UM mode is indicated by means of inter-layer primitives.
  • the adopting the RLC layer UM mode for all or part of the SRB data according to the configuration includes:
  • the SRB data using the RLC layer UM mode is UM-encapsulated at the RLC layer.
  • the method further includes:
  • the transmitting end repeatedly transmits the SRB data in the RMC layer UM mode; or,
  • the receiving end performs de-duplication processing on the SRB data in the UM mode of the RLC layer.
  • the repeated transmission or deduplication processing is performed at the medium access control MAC layer.
  • the information of the number of repeated transmissions, the initiation of repeated transmission or deduplication processing, or the stop of repeated transmission or deduplication processing is configured by the base station.
  • the configuring by the base station includes:
  • the information of the number of repeated transmissions, the initiation of repeated transmission or deduplication processing, or the stop of repeated transmission or deduplication processing is configured by the base station through RRC signaling or MAC signaling.
  • the present invention also provides an SRB transmission apparatus, the apparatus comprising:
  • the processing unit of the RLC layer UM mode is adopted for all or part of the SRB data.
  • the processing unit comprises:
  • an indication module configured to indicate, in the RRC layer, the SRB data that adopts the RLC layer UM mode, and deliver the indication information to the RLC layer via the PDCP layer.
  • the indication module specifically executes:
  • the SRB data carries the identifier information in the RMC layer UM mode; or the SRB data in the RLC layer UM mode is indicated by the inter-layer primitive.
  • the processing unit comprises:
  • the RLC layer module is configured to perform UM encapsulation on the SRB data in the RLC layer UM mode at the RLC layer.
  • the apparatus further includes: a retransmission unit or a deduplication unit;
  • the retransmission unit is configured to repeatedly send the SRB data in the RMC layer UM mode at the transmitting end;
  • the de-duplication unit is configured to perform de-duplication processing on the SRB data in the RLC layer UM mode at the receiving end.
  • the retransmission unit or the deduplication unit is implemented in a PDCP layer; or
  • the retransmission unit or the deduplication unit is implemented in an RLC layer; or
  • the retransmission unit or the deduplication unit is implemented at the MAC layer.
  • the information of the number of repeated transmissions, the initiation of repeated transmission or deduplication processing, or the stop of repeated transmission or deduplication processing is configured by the base station.
  • the information of the number of repeated transmissions, the initiation of repeated transmission or de-duplication processing, or the stop of repeated transmission or de-duplication processing is configured by the base station through RRC signaling or MAC signaling.
  • the invention also provides an apparatus, including
  • One or more processors are One or more processors;
  • One or more programs the one or more programs being stored in the memory, the operations in the above methods being performed by the one or more processors.
  • the present invention also provides a storage medium containing computer executable instructions for performing the operations of the above methods when executed by a computer processor.
  • the method and the device provided by the present invention adopt the RLC layer UM mode for all or part of the SRB data, and avoid the feedback ARQ in the AM mode and also need to perform the LBT operation, thereby reducing the transmission delay of the SRB. .
  • the SRB data using the RLC layer UM mode is repeatedly transmitted, thereby improving the reliability of signaling transmission and solving the problem of possible signaling loss.
  • FIG. 1 is a schematic diagram of an SRB transmission method according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic diagram of an SRB transmission method according to Embodiment 2 of the present invention.
  • FIG. 3 is a schematic diagram of an SRB transmission method according to Embodiment 3 of the present invention.
  • FIG. 4 is a schematic structural diagram of an SRB transmission apparatus according to an embodiment of the present invention.
  • the core idea of the present invention is to adopt the RLC layer UM (non-acknowledgement) mode for all or part of the SRB data according to the configuration, and to avoid the feedback ARQ in the AM mode and also need to perform the LBT operation, thereby reducing the transmission delay of the SRB.
  • RLC layer UM non-acknowledgement
  • the SRB data involved in the embodiment of the present invention may include, but is not limited to, SRB0, SRB1, and SRB2.
  • SRB0 is mainly used to transmit RRC messages and transmit on the logical channel CCCH.
  • SRB1 is mainly used to transmit RRC messages and transmit on the logical channel DCCH.
  • SRB2 is mainly used to transmit NAS messages and transmit on the logical channel DCCH.
  • the RLC layer UM mode may be adopted for all or part of the SRB data, whether the uplink SRB data or the downlink SRB data.
  • the RLC layer UM mode may be adopted for all or part of the SRB data on all carriers in advance, or the RLC layer UM mode may be adopted for all or part of the SRB data on a specific carrier.
  • the specific carrier may include, but is not limited to, an unlicensed carrier.
  • the same system can simultaneously adopt the RLC layer UM mode and the AM mode for different SRB data.
  • different carriers may be used to carry SRB data in different modes, and even the same carrier may be used to carry SRB data in different modes, but the SRB data in the UM mode using the RLC layer is indicated.
  • the RLC layer UM mode When the RLC layer UM mode is adopted for all or part of the SRB data according to the configuration, it may be indicated which SRB data needs to adopt the RLC layer UM mode, so that the RLC layer can adopt the UM mode for the SRB data.
  • the following two methods may be adopted but are not limited to the following:
  • the identifier information needs to be carried in the transmitted SRB data.
  • the identifier information may be carried in the header of the SRB data to identify that the SRB data is in the RLC layer UM mode.
  • the second way is to indicate the SRB data using the RLC layer UM mode by means of inter-layer primitives. In this way, it is not necessary to modify the SRB data itself, and only when the SRB data is transmitted between the protocol layers, the inter-layer primitives passed this time are used to indicate that the SRB data adopts the RLC layer UM mode.
  • the transmitting end may adopt a retransmission mechanism for the SRB data using the RL mode of the RLC layer. That is, the same SRB data can be sent N times, where N is a pre-configured positive integer.
  • the SRB data using the RLC layer UM mode can be deduplicated at the receiving end.
  • the above-mentioned repeated transmission may be performed at the PDCP (Packet Data Convergence Protocol) layer of the transmitting end. Accordingly, the deduplication processing may be performed at the PDCP layer of the receiving end. Alternatively, the above repeated transmission may be performed at the RLC layer of the transmitting end, and correspondingly, the deduplication processing may be performed at the RLC layer of the receiving end. Alternatively, the above repeated transmission may be performed at the MAC (Media Access Control) layer of the transmitting end. Accordingly, the deduplication processing may be performed at the MAC layer of the receiving end. Which protocol layer implementation is specifically preconfigurable.
  • the transmitting end indicates the generated SRB data at the RRC layer, and may adopt one of the foregoing two methods, that is, a method of carrying the identifier information in the SRB data, or an inter-layer primitive may be adopted.
  • the mode indicates that the SRB data adopts the RLC layer UM mode. If the former is used, the identifier information may be carried in the data packet header of the SRB data to indicate that the SRB data adopts the RLC layer UM mode.
  • the PDCP layer determines that the SRB data needs to adopt the RLC layer UM mode according to the identifier information carried in the packet header of the SRB data.
  • the SRB data is repeatedly transmitted N times in the PDCP layer, and the N is 2, that is, the PDU (Protocol Data Unit) formed by the SRB data is transmitted twice.
  • RLC layer performs UM encapsulation on the received PDU.
  • the PDCP layer at the receiving end performs deduplication processing on the SRB data, that is, after the RLC layer transfers the RLC (including SRB data) data to the PDCP layer, the data deduplication processing is performed by the PDCP layer.
  • the transmitting end indicates the generated SRB data at the RRC layer, and may also adopt one of the foregoing two methods, that is, a method of carrying the identifier information in the SRB data, or an inter-layer primitive may be adopted.
  • the way indicates that the SRB data uses the RLC layer UM mode.
  • the indication is communicated to the RLC layer via the PDCP layer, for example by carrying identification information in the packet header of each layer of encapsulation.
  • the RLC layer is configured to perform the repeated transmission mechanism in advance, and then the PDU is encapsulated in the RLC layer (that is, the PDU formed by the SRB data), and then repeatedly transmitted N times. Assuming N is 2, the PDU formed by the SRB data is UM encapsulated and sent twice. Accordingly, the RLC layer at the receiving end performs deduplication processing on the SRB data.
  • the transmitting end indicates the generated SRB data at the RRC layer, and may also adopt one of the foregoing two methods, that is, a method of carrying the identifier information in the SRB data, or an inter-layer primitive may be adopted.
  • the way indicates that the SRB data uses the RLC layer UM mode.
  • the indication is transmitted to the MAC layer via the PDCP layer and the RLC layer, for example, by carrying identification information in a packet header encapsulated in each layer.
  • the PDU formed by the SRB data is UM-encapsulated at the RLC layer.
  • the MAC layer performs a repeated transmission mechanism, that is, if the PDCP and the RLC layer do not support repeated transmission, the MAC may perform repeated transmission, and the MAC layer sends the received SRB data according to the indication. N times. Assuming N is 2, the transmission is repeated twice at the MAC layer. Correspondingly, if the MAC layer at the receiving end receives the duplicate SRB data, the SRB data is subjected to deduplication processing.
  • the LBT mechanism may be adopted each time the retransmission transmission is performed.
  • the number N of repeated transmissions may be configured by the base station, or the base station may be configured to initiate repeated transmission or de-duplication processing, or may be configured by the base station to stop repeated transmission or de-duplication processing.
  • the base station may configure the foregoing content by using, but not limited to, RRC signaling or MAC signaling.
  • FIG. 4 is a schematic structural diagram of an SRB transmission apparatus according to an embodiment of the present invention.
  • the apparatus may include: a processing unit 10, and may further include a retransmission unit 20 or a deduplication unit 30.
  • the main functions of each component are as follows:
  • the processing unit 10 is responsible for adopting the RLC layer UM mode for all or part of the SRB data according to the configuration.
  • the SRB data involved therein may include, but is not limited to, SRB0, SRB1, and SRB2.
  • the RLC layer UM mode can be used for all or part of the SRB data, whether it is the uplink SRB data or the downlink SRB data.
  • the RLC layer UM mode may be pre-configured for all or part of the SRB data on all carriers, or the RLC layer UM mode may be adopted for all or part of the SRB data on a specific carrier.
  • the specific carrier may include, but is not limited to, an unlicensed carrier.
  • the processing unit 10 may include an indication module 11 for indicating SRB data in the RMC layer UM mode, which may be, but is not limited to, the following two modes:
  • the identifier information needs to be carried in the transmitted SRB data.
  • the identifier information may be carried in the header of the SRB data to identify that the SRB data is in the RLC layer UM mode.
  • the second way is to indicate the SRB data using the RLC layer UM mode by means of inter-layer primitives. In this way, it is not necessary to modify the SRB data itself, and only when the SRB data is transmitted between the protocol layers, the inter-layer primitives passed this time are used to indicate that the SRB data adopts the RLC layer UM mode.
  • the above indication module 11 can be implemented in the RRC layer and the PDCP layer.
  • the generated SRB data may be indicated at the RRC layer, and the indication manner may be one of the foregoing two manners, and then the indication is delivered to the RLC layer through the PDCP layer.
  • the RRC layer may encapsulate the SRB data in the data header by using the identifier information of the RLC layer UM mode, and the PDCP layer also performs protocol encapsulation according to the identifier information.
  • the SRB data is encapsulated in the data header when passed to the next layer using the RLC layer UM mode.
  • the RRC layer uses the inter-layer primitives to be used to indicate that the SRB data uses the RLC layer UM mode when transmitting data to the PDCP layer.
  • the inter-layer primitives passed this time are used to indicate that the SRB data uses the RLC layer UM mode.
  • the processing unit 10 further includes: an RLC layer module 12, configured to perform UM encapsulation on the SRB data in the RLC layer UM mode at the RLC layer.
  • an RLC layer module 12 configured to perform UM encapsulation on the SRB data in the RLC layer UM mode at the RLC layer.
  • the retransmission unit 20 may be further included; If the device is located at the receiving end, the device may also include a de-duplication unit (not shown).
  • the retransmission unit 20 is responsible for repeatedly transmitting SRB data in the RLC layer UM mode at the transmitting end. That is, the same SRB data can be sent N times, where N is a pre-configured positive integer.
  • the de-duplication unit performs de-duplication processing on the SRB data using the RLC layer UM mode at the receiving end.
  • the retransmission unit 20 and the deduplication unit may be implemented in the PDCP layer; or, the retransmission unit 20 and the deduplication unit may be implemented in the RLC layer; or, the retransmission unit 20 and the deduplication unit may be implemented in the MAC layer.
  • the information of the number of times of repeated transmission, the start of repeated transmission or de-duplication processing, or the stop of repeated transmission or de-reprocessing may be configured by the base station, that is, the retransmission unit 20 and the de-duplication unit may initiate repeated transmission and removal according to the configuration of the base station. Reprocessing, stopping repeated transmissions and deduplications, and determining the number of repeated transmissions.
  • the above-mentioned number of repeated transmissions, initiation of repeated transmission or de-duplication processing, or suspension of repeated transmission or de-duplication processing may be configured by the base station through RRC signaling or MAC signaling.
  • the above method and apparatus provided by the embodiments of the present invention may be implemented by one or more integrated circuits, such as a codec chip, or by a program to instruct related hardware, and the program may be stored in a computer readable storage medium.
  • Each unit in the above embodiment may be implemented in the form of hardware or in the form of a software function module.
  • the invention is not limited to any specific form of combination of hardware and software.
  • a device which includes:
  • One or more processors are One or more processors;
  • One or more programs the one or more programs being stored in the memory, executed by the one or more processors to:
  • the RLC layer UM mode is adopted for all or part of the SRB data.
  • the computer readable medium can be a computer readable signal medium or a computer readable storage medium.
  • the computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above.
  • a computer readable storage medium can be any tangible medium that can contain or store a program, which can be used by or in connection with an instruction execution system, apparatus or device.
  • a computer readable signal medium may include a data signal that is propagated in the baseband or as part of a carrier, carrying computer readable program code. Such propagated data signals can take a variety of forms including, but not limited to, electromagnetic signals, optical signals, or any suitable combination of the foregoing.
  • the computer readable signal medium can also be any computer readable medium other than a computer readable storage medium, which can transmit, propagate, or transport a program for use by or in connection with the instruction execution system, apparatus, or device. .

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

Abstract

本发明提供了一种SRB(信令无线承载)传输方法和装置，依据配置，对SRB数据的全部或部分采用RLC(无线链路层控制)层UM(非确认)模式，避免了AM(确认)模式下反馈ARQ(自动重传请求)也需要执行LBT(先听后说)操作，从而降低了SRB的传输延迟。

Description

一种SRB传输方法和装置 技术领域
本发明涉及无线通信技术领域，特别涉及一种SRB传输方法和装置。
背景技术
LTE(Long Term Evolution，长期演进)和5G技术都考虑授权和非授权频段的部署。其中，LTE的非授权技术都是基于Pcell(主小区)在授权频段上假设来设计的，具体地，SRB(Signaling Radio Bearer，信令无线承载)在授权的小区上进行传输，因此，SRB的传输可以得到时延和传输成功率的保证。
NR(New Radio，新无线)非授权技术也会考虑将Pcell实现在非授权频段上。目前是将SRB在RLC(Radio Link Control，无线链路层控制协议)层配置为AM(确认)模式，由于RLC层无法区分SRB和DRB(Data Radio Bearer，数据无线承载)数据而将两者一同进行传输，AM模式下因为ARQ(Automatic Repeat-reQuest，自动重传请求)需要反馈，而反馈也需要执行LBT(Listen Before Talk，先听后说)，因此，LBT操作次数过多容易导致SRB信令交互的传输延迟增大。
发明内容
有鉴于此，本发明提供了一种SRB传输方法和装置，以便于缩短NR非授权频段技术中SRB的传输延迟。
一方面，本发明实施例中提供了一种SRB传输方法，该方法包括：
依据配置，对SRB数据的全部或部分采用RLC层非确认UM模式。
根据本发明一具体实施方式，所述依据配置，对SRB数据的全部或部分采用RLC层UM模式包括：
在RRC层指示采用RLC层UM模式的SRB数据，并将指示信息经由PDCP层传递给RLC层。
根据本发明一具体实施方式，所述指示采用RLC层UM模式的SRB数据包括：
在SRB数据中携带采用RLC层UM模式的标识信息；或者，
通过层间原语的方式指示采用RLC层UM模式的SRB数据。
根据本发明一具体实施方式，所述依据配置，对SRB数据的全部或部分采用RLC层UM模式包括：
在RLC层对采用RLC层UM模式的SRB数据进行UM封装。
根据本发明一具体实施方式，该方法还包括：
发送端对采用RLC层UM模式的SRB数据进行重复发送；或者，
接收端对采用RLC层UM模式的SRB数据进行去重复处理。
根据本发明一具体实施方式，在PDCP层执行所述重复发送或去重复的处理；或者，
在RLC层执行所述重复发送或去重复的处理；或者，
在媒体接入控制MAC层执行所述重复发送或去重复的处理。
根据本发明一具体实施方式，所述重复发送的次数、启动重复发送或去重处理、或者停止重复发送或去重处理的信息由基站进行配置。
根据本发明一具体实施方式，所述由基站进行配置包括：
所述重复发送的次数、启动重复发送或去重处理、或者停止重复发 送或去重处理的信息由基站通过RRC信令或MAC信令进行配置。
另一方面，本发明还提供了一种SRB传输装置，该装置包括：
依据配置，对SRB数据的全部或部分采用RLC层UM模式的处理单元。
根据本发明一具体实施方式，所述处理单元包括：
指示模块，用于在RRC层指示采用RLC层UM模式的SRB数据，并将指示信息经由PDCP层传递给RLC层。
根据本发明一具体实施方式，所述指示模块，具体执行：
在SRB数据中携带采用RLC层UM模式的标识信息；或者，通过层间原语的方式指示采用RLC层UM模式的SRB数据。
根据本发明一具体实施方式，所述处理单元包括：
RLC层模块，用于在RLC层对采用RLC层UM模式的SRB数据进行UM封装。
根据本发明一具体实施方式，该装置还包括：重发单元或去重单元；
所述重发单元，用于在发送端对采用RLC层UM模式的SRB数据进行重复发送；
所述去重单元，用于在接收端对采用RLC层UM模式的SRB数据进行去重复处理。
根据本发明一具体实施方式，所述重发单元或所述去重单元在PDCP层实现；或者，
所述重发单元或所述去重单元在RLC层实现；或者，
所述重发单元或所述去重单元在MAC层实现。
根据本发明一具体实施方式，所述重复发送的次数、启动重复发送 或去重处理、或者停止重复发送或去重处理的信息由基站进行配置。
根据本发明一具体实施方式，所述重复发送的次数、启动重复发送或去重处理、或者停止重复发送或去重处理的信息由基站通过RRC信令或MAC信令进行配置。
本发明还提供了一种设备，包括
一个或者多个处理器；
存储器；
一个或者多个程序，所述一个或者多个程序存储在所述存储器中，被所述一个或者多个处理器执行上述方法中的操作。
本发明还提供了一种包含计算机可执行指令的存储介质，所述计算机可执行指令在由计算机处理器执行时用于执行上述方法中的操作。
由以上技术方案可以看出，本发明提供的方法和装置中，对SRB数据的全部或部分采用RLC层UM模式，避免了AM模式下反馈ARQ也需要执行LBT操作，从而降低了SRB的传输延迟。
当该方式应用于非授权频段，则可以提高NR系统在非授权频段运行的效率，缩短控制面的延迟。
更进一步地，本发明中对采用RLC层UM模式的SRB数据进行重复发送，从而提高信令传输的可靠性，解决可能的信令丢失问题。
附图说明
图1为本发明实施例一提供的SRB传输方法的示意图；
图2为本发明实施例二提供的SRB传输方法的示意图；
图3为本发明实施例三提供的SRB传输方法的示意图；
图4为本发明实施例提供的SRB传输装置的结构示意图。
具体实施方式
为了使本发明的目的、技术方案和优点更加清楚，下面结合附图和具体实施例对本发明进行详细描述。
本发明的核心思想在于，依据配置，对SRB数据的全部或部分采用RLC层UM(非确认)模式，避免了AM模式下反馈ARQ也需要执行LBT操作，从而降低了SRB的传输延迟。
其中，本发明实施例中涉及的SRB数据可以包括但不限于SRB0、SRB1和SRB2。SRB0主要用于传输RRC消息，在逻辑信道CCCH上传输。SRB1主要用于传输RRC消息，在逻辑信道DCCH上传输。SRB2主要用于传输NAS消息，在逻辑信道DCCH上传输。
另外，在本发明实施例中，无论是上行的SRB数据还是下行的SRB数据，均可以对SRB数据的全部或部分采用RLC层UM模式。
在本发明实施例中，可以预先配置在所有载波上对SRB数据的全部或部分采用RLC层UM模式，也可以预先配置在特定载波上对SRB数据的全部或部分采用RLC层UM模式。其中特定载波可以包括但不限于非授权载波。
另外，需要说明的是，在本发明实施例中，同一系统可以同时对不同的SRB数据采用RLC层UM模式和AM模式。例如可以采用不同的载波来承载采用不同模式的SRB数据，甚至也可以采用相同的载波来承载采用不同模式的SRB数据，但针对采用RLC层UM模式的SRB数据进行指示。
在依据配置，对SRB数据的全部或部分采用RLC层UM模式时，可以指示哪些SRB数据需要采用RLC层UM模式，从而使得RLC层能够对这些SRB数据采用UM模式。具体地，可以采用但不限于以下两种方式：
第一种方式：在SRB数据中标识采用RLC层UM模式。这种方式需要对传输的SRB数据中携带标识信息，例如可以在SRB数据的包头中携带标识信息，以标识该SRB数据采用RLC层UM模式。
第二种方式：通过层间原语的方式指示采用RLC层UM模式的SRB数据。这种方式无需对SRB数据本身进行改动，只需要SRB数据在各协议层之间传递时，采用本次传递的层间原语来指示该SRB数据采用RLC层UM模式。
若对SRB数据的全部或部分采用RLC层UM模式，为了提高信令传输的可靠性，解决可能的信令丢失问题，在发送端可以采取对采用RLC层UM模式的SRB数据进行重复发送机制。即对同一个SRB数据可以发送N次，其中N为预先配置的正整数。相应地，在接收端可以对采用RLC层UM模式的SRB数据进行去重复处理。
其中，上述重复发送可以在发送端的PDCP(Packet Data Convergence Protocol，分组数据汇聚协议)层执行，相应地，去重复处理可以在接收端的PDCP层执行。或者，上述重复发送可以在发送端的RLC层执行，相应地，去重复处理可以在接收端的RLC层执行。或者，上述重复发送可以在发送端的MAC(Media Access Control，媒体接入控制)层执行，相应地，去重复处理可以在接收端的MAC层执行。具体在哪个协议层执行可以预先配置。
下面列举几个实施例：
实施例一、
如图1中所示，发送端在RRC层对产生的SRB数据进行指示，可以采用上述两种方式之一，即可以采用在SRB数据中携带标识信息的方式，也可以采用层间原语的方式指示该SRB数据采用RLC层UM模式。若采用前者，则可以在SRB数据的数据包头中携带标识信息指示该SRB数据采用RLC层UM模式。PDCP层依据SRB数据的包头所携带的标识信息，确定该SRB数据需要采用RLC层UM模式。本实施例中，预先配置在PDCH层执行重复发送机制，则在PDCP层重复发送N次SRB数据，假设N为2，即将SRB数据形成的PDU(Protocol Data Unit，协议数据单元)传输两次给RLC层。RLC层对接收到的PDU进行UM封装。相应地，在接收端的PDCP层对SRB数据进行去重处理，即RLC层将RLC(包含SRB数据)数据传递给PDCP层后，由PDCP层执行数据去重处理。
实施例二、
如图2中所示，发送端在RRC层对产生的SRB数据进行指示，同样可以采用上述两种方式之一，即可以采用在SRB数据中携带标识信息的方式，也可以采用层间原语的方式指示该SRB数据采用RLC层UM模式。该指示经由PDCP层传递给RLC层，例如通过在每一层封装的数据包头中携带标识信息进行指示。本实施例中，预先配置在RLC层执行重复发送机制，则在RLC层对接收到的PDU(即SRB数据形成的PDU)进行UM封装后，重复发送N次。假设N为2，即将SRB数据形成的PDU进行UM封装后发送两次。相应地，在接收端的RLC层对SRB数 据进行去重处理。
实施例三、
如图3中所示，发送端在RRC层对产生的SRB数据进行指示，同样可以采用上述两种方式之一，即可以采用在SRB数据中携带标识信息的方式，也可以采用层间原语的方式指示该SRB数据采用RLC层UM模式。该指示经由PDCP层、RLC层传递给MAC层，例如通过在每一层封装的数据包头中携带标识信息进行指示。另外，SRB数据形成的PDU在RLC层进行UM封装。本实施例中，预先配置在MAC层执行重复发送机制，即在PDCP和RLC层都没有支持重复发送的情况下，可以在MAC进行重复发送，则在MAC层依据指示对接收到的SRB数据发送N次。假设N为2，则在MAC层重复发送2次。相应地，在接收端的MAC层如果收到了重复的SRB数据，则对SRB数据进行去重处理。
需要说明的是，在上述各实施例中，每次执行重传发送时，可以均采用LBT机制。
在上述几个实施例中，可以通过基站对重复发送的次数N进行配置，也可以通过基站对启动重复发送或去重处理进行配置，还可以通过基站对停止重复发送或去重处理进行配置。具体地，基站可以采用但不限于RRC信令或MAC信令对上述内容进行配置。
以上是对本发明提供的方法进行的描述，下面结合实施例对本发明提供的装置进行详细描述。
图4为本发明实施例提供的SRB传输装置的结构示意图，如图4所示，该装置可以包括：处理单元10，还可以包括重发单元20或去重单元30。其中各组成单元的主要功能如下：
处理单元10负责依据配置，对SRB数据的全部或部分采用RLC层UM模式。其中涉及的SRB数据可以包括但不限于SRB0、SRB1和SRB2。并且，无论是上行的SRB数据还是下行的SRB数据，均可以对SRB数据的全部或部分采用RLC层UM模式。
可以预先配置在所有载波上对SRB数据的全部或部分采用RLC层UM模式，也可以预先配置在特定载波上对SRB数据的全部或部分采用RLC层UM模式。其中特定载波可以包括但不限于非授权载波。
具体地，处理单元10可以包括指示模块11，用于对采用RLC层UM模式的SRB数据进行指示，可以采用但不限于以下两种方式：
第一种方式：在SRB数据中标识采用RLC层UM模式。这种方式需要对传输的SRB数据中携带标识信息，例如可以在SRB数据的包头中携带标识信息，以标识该SRB数据采用RLC层UM模式。
第二种方式：通过层间原语的方式指示采用RLC层UM模式的SRB数据。这种方式无需对SRB数据本身进行改动，只需要SRB数据在各协议层之间传递时，采用本次传递的层间原语来指示该SRB数据采用RLC层UM模式。
上述指示模块11可以在RRC层、PDCP层实现。具体地，可以在RRC层对产生的SRB数据进行指示，指示方式可以采用上述两种方式中的一种，然后该指示经过PDCP层传递至RLC层。若采用上述第一种方式，则RRC层在对SRB数据进行协议封装时，可以在数据头中封装SRB数据采用RLC层UM模式的标识信息，在PDCP层依据该标识信息，同样在进行协议封装传递给下一层时在数据头中封装SRB数据采用RLC层UM模式。若采用上述第二种方式，则RRC层在传递数据给PDCP 层时，采用本次传递的层间原语来指示该SRB数据采用RLC层UM模式；同样在PDCP层传递数据给RLC层时，采用本次传递的层间原语来指示该SRB数据采用RLC层UM模式。
另外，处理单元10进一步包括：RLC层模块12，用于在RLC层对采用RLC层UM模式的SRB数据进行UM封装。
另外，若对SRB数据的全部或部分采用RLC层UM模式，为了提高信令传输的可靠性，解决可能的信令丢失问题，若该装置位于发送端，则还可以包括：重发单元20；若该装置位于接收端，则该装置还可以包括去重单元(图中未示出)。
重发单元20负责在发送端对采用RLC层UM模式的SRB数据进行重复发送。即对同一个SRB数据可以发送N次，其中N为预先配置的正整数。
去重单元在接收端对采用RLC层UM模式的SRB数据进行去重复处理。
其中，上述重发单元20和去重单元可以在PDCP层实现；或者，重发单元20和去重单元可以在RLC层实现；或者，重发单元20和去重单元可以在MAC层实现。
上述重复发送的次数、启动重复发送或去重处理、或者停止重复发送或去重处理的信息可以由基站进行配置，即上述重发单元20和去重单元可以依据基站的配置启动重复发送和去重处理、停止重复发送和去重处理、以及确定重复发送的次数。
更具体地，上述重复发送的次数、启动重复发送或去重处理、或者停止重复发送或去重处理的信息可以由基站通过RRC信令或MAC信令 进行配置。
本发明实施例提供的上述方法和装置可以以一个或多个集成电路例如编解码芯片的方式实现，也可以通过程序来指令相关硬件来完成，所述程序可以存储于计算机可读存储介质中。上述实施例中的各单元可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。本发明不限制任何特定形式的硬件和软件的结合。
例如可以通过设备实现，该设备包括：
一个或者多个处理器；
存储器；
一个或者多个程序，所述一个或者多个程序存储在所述存储器中，被所述一个或者多个处理器执行以实现如下操作：
依据配置，对SRB数据的全部或部分采用RLC层UM模式。
另外，随着时间、技术的发展，介质含义越来越广泛，程序的传播途径不再受限于有形介质，还可以直接从网络下载等。可以采用一个或多个计算机可读的介质的任意组合。计算机可读介质可以是计算机可读信号介质或者计算机可读存储介质。计算机可读存储介质例如可以是——但不限于——电、磁、光、电磁、红外线、或半导体的系统、装置或器件，或者任意以上的组合。计算机可读存储介质的更具体的例子(非穷举的列表)包括：具有一个或多个导线的电连接、便携式计算机磁盘、硬盘、随机存取存储器(RAM)、只读存储器(ROM)、可擦式可编程只读存储器(EPROM或闪存)、光纤、便携式紧凑磁盘只读存储器(CD-ROM)、光存储器件、磁存储器件、或者上述的任意合适的组合。在本文件中，计算机可读存储介质可以是任何包含或存储程序的有形介质，该程序可 以被指令执行系统、装置或者器件使用或者与其结合使用。
计算机可读的信号介质可以包括在基带中或者作为载波一部分传播的数据信号，其中承载了计算机可读的程序代码。这种传播的数据信号可以采用多种形式，包括——但不限于——电磁信号、光信号或上述的任意合适的组合。计算机可读的信号介质还可以是计算机可读存储介质以外的任何计算机可读介质，该计算机可读介质可以发送、传播或者传输用于由指令执行系统、装置或者器件使用或者与其结合使用的程序。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明保护的范围之内。

Claims (18)

  1. 一种信令无线承载SRB传输方法，其特征在于，该方法包括：
    依据配置，对SRB数据的全部或部分采用无线链路层控制协议RLC层非确认UM模式。
  2. 根据权利要求1所述的方法，其特征在于，所述依据配置，对SRB数据的全部或部分采用RLC层UM模式包括：
    在RRC层指示采用RLC层UM模式的SRB数据，并将指示信息经由PDCP层传递给RLC层。
  3. 根据权利要求2所述的方法，所述指示采用RLC层UM模式的SRB数据包括：
    在SRB数据中携带采用RLC层UM模式的标识信息；或者，
    通过层间原语的方式指示采用RLC层UM模式的SRB数据。
  4. 根据权利要求1所述的方法，其特征在于，所述依据配置，对SRB数据的全部或部分采用RLC层UM模式包括：
    在RLC层对采用RLC层UM模式的SRB数据进行UM封装。
  5. 根据权利要求1所述的方法，其特征在于，该方法还包括：
    发送端对采用RLC层UM模式的SRB数据进行重复发送；或者，
    接收端对采用RLC层UM模式的SRB数据进行去重复处理。
  6. 根据权利要求5所述的方法，其特征在于，在分组数据汇聚协议PDCP层执行所述重复发送或去重复的处理；或者，
    在RLC层执行所述重复发送或去重复的处理；或者，
    在媒体接入控制MAC层执行所述重复发送或去重复的处理。
  7. 根据权利要求5所述的方法，其特征在于，所述重复发送的次数、 启动重复发送或去重处理、或者停止重复发送或去重处理的信息由基站进行配置。
  8. 根据权利要求7所述的方法，其特征在于，所述由基站进行配置包括：
    所述重复发送的次数、启动重复发送或去重处理、或者停止重复发送或去重处理的信息由基站通过RRC信令或MAC信令进行配置。
  9. 一种SRB传输装置，其特征在于，该装置包括：
    依据配置，对SRB数据的全部或部分采用RLC层UM模式的处理单元。
  10. 根据权利要求9所述的装置，其特征在于，所述处理单元包括：
    指示模块，用于在RRC层指示采用RLC层UM模式的SRB数据，并将指示信息经由PDCP层传递给RLC层。
  11. 根据权利要求10所述的装置，其特征在于，所述指示模块，具体执行：
    在SRB数据中携带采用RLC层UM模式的标识信息；或者，
    通过层间原语的方式指示采用RLC层UM模式的SRB数据。
  12. 根据权利要求9所述的装置，其特征在于，所述处理单元包括：
    RLC层模块，用于在RLC层对采用RLC层UM模式的SRB数据进行UM封装。
  13. 根据权利要求9所述的装置，其特征在于，该装置还包括：重发单元或去重单元；
    所述重发单元，用于在发送端对采用RLC层UM模式的SRB数据进行重复发送；
    所述去重单元，用于在接收端对采用RLC层UM模式的SRB数据进行去重复处理。
  14. 根据权利要求13所述的装置，其特征在于，所述重发单元或所述去重单元在PDCP层实现；或者，
    所述重发单元或所述去重单元在RLC层实现；或者，
    所述重发单元或所述去重单元在MAC层实现。
  15. 根据权利要求13所述的装置，其特征在于，所述重复发送的次数、启动重复发送或去重处理、或者停止重复发送或去重处理的信息由基站进行配置。
  16. 根据权利要求15所述的装置，其特征在于，所述重复发送的次数、启动重复发送或去重处理、或者停止重复发送或去重处理的信息由基站通过RRC信令或MAC信令进行配置。
  17. 一种设备，包括
    一个或者多个处理器；
    存储器；
    一个或者多个程序，所述一个或者多个程序存储在所述存储器中，被所述一个或者多个处理器执行如权利要求1至8中任一权项所述方法中的操作。
  18. 一种包含计算机可执行指令的存储介质，所述计算机可执行指令在由计算机处理器执行时用于执行如权利要求1至8中任一权项所述方法中的操作。
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007091715A1 (en) * 2006-02-08 2007-08-16 Nec Corporation Modified connection setup for e-utra radio resource control
US20080089285A1 (en) * 2006-10-16 2008-04-17 Nokia Corporation Method and apparatus for communicating protocol data unit in a radio access network
CN102647803A (zh) * 2011-02-21 2012-08-22 电信科学技术研究院 一种传输消息的方法、系统和设备
CN102655448A (zh) * 2011-03-03 2012-09-05 工业和信息化部电信传输研究所 一种长期演进系统媒质访问控制层的数据传输方法
CN106937238A (zh) * 2015-12-30 2017-07-07 夏普株式会社 基于非访问层消息的数据传输方法、基站和用户设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI110831B (fi) * 1999-12-31 2003-03-31 Nokia Corp Menetelmä tiedonsiirron tehostamiseksi ja tiedonsiirtoprotokolla
GB201909199D0 (en) * 2013-02-22 2019-08-07 Tran Bao Communication apparatus
US10219305B2 (en) * 2013-11-21 2019-02-26 Bao Tran Communication apparatus
CN108307519B (zh) * 2016-09-30 2021-05-11 华为技术有限公司 消息传输方法、设备和系统
SG11202001289VA (en) * 2017-08-21 2020-03-30 Beijing Xiaomi Mobile Software Co Ltd Data transmission method and device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007091715A1 (en) * 2006-02-08 2007-08-16 Nec Corporation Modified connection setup for e-utra radio resource control
US20080089285A1 (en) * 2006-10-16 2008-04-17 Nokia Corporation Method and apparatus for communicating protocol data unit in a radio access network
CN102647803A (zh) * 2011-02-21 2012-08-22 电信科学技术研究院 一种传输消息的方法、系统和设备
CN102655448A (zh) * 2011-03-03 2012-09-05 工业和信息化部电信传输研究所 一种长期演进系统媒质访问控制层的数据传输方法
CN106937238A (zh) * 2015-12-30 2017-07-07 夏普株式会社 基于非访问层消息的数据传输方法、基站和用户设备

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ERICSSON: "RLC UM for NB-IoT for SRBs", R2-1710750, R2-1710750'' 3GPP TSG-RAN WG2 #99BIS, vol. RAN WG2, 8 October 2017 (2017-10-08) - 13 October 2017 (2017-10-13), XP051342776 *
LEADING WG_ HUAWEI ET AL.: "Status Report to TSG", 3GPP TSG RAN MEETING #77 RP-172089,, vol. TS RAN, 13 September 2017 (2017-09-13) - 14 September 2017 (2017-09-14), XP051346261 *

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