WO2022151237A1 - 一种提高mbs业务传输可靠性的通信方法 - Google Patents

一种提高mbs业务传输可靠性的通信方法 Download PDF

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Publication number
WO2022151237A1
WO2022151237A1 PCT/CN2021/071888 CN2021071888W WO2022151237A1 WO 2022151237 A1 WO2022151237 A1 WO 2022151237A1 CN 2021071888 W CN2021071888 W CN 2021071888W WO 2022151237 A1 WO2022151237 A1 WO 2022151237A1
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Prior art keywords
feedback
communication method
mode
base station
nack
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English (en)
French (fr)
Inventor
张鑫
生嘉
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JRD Communication Shenzhen Ltd
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JRD Communication Shenzhen Ltd
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Priority to US18/260,340 priority Critical patent/US20240072938A1/en
Priority to PCT/CN2021/071888 priority patent/WO2022151237A1/zh
Priority to EP21918445.4A priority patent/EP4280496A4/en
Priority to CN202180089422.9A priority patent/CN116964971A/zh
Publication of WO2022151237A1 publication Critical patent/WO2022151237A1/zh
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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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1864—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements

Definitions

  • the disclosed embodiments of the present invention relate to the technical field of MBS communication, and more particularly, to a communication method, user equipment and base station for improving the reliability of MBS service transmission.
  • LTE Multimedia Broadcast Multicast Service can be divided into SC-PTM (Single Cell Point-To-Multipoint, single cell point-to-multipoint) and MBSFN (Multicast-Broadcast Single Frequency Network, Multicast/Multicast Single Frequency Network).
  • SC-PTM Single Cell Point-To-Multipoint, single cell point-to-multipoint
  • MBSFN Multicast-Broadcast Single Frequency Network, Multicast/Multicast Single Frequency Network
  • the present invention solves the above-mentioned technical problems by a communication method for improving the reliability of MBS service transmission.
  • a communication method for improving the reliability of MBS service transmission is provided.
  • the communication method is executed on the user equipment side, and includes: receiving a transmission block of the MBS service on a physical downlink shared channel; decoding the transmission block , send feedback to the base station according to the decoding state and the configured feedback mode, where the feedback mode is ACK/NACK mode or NACK mode; if the feedback is negative feedback, receive retransmission of all or part of the transport block, where all The retransmission of all or part of the transport block is performed by the base station according to HARQ configuration and HARQ enablement.
  • a communication method for improving the reliability of MBS service transmission is provided.
  • the communication method is executed at the base station side, and includes: sending a transport block of the MBS service on a physical downlink shared channel; Feedback, where the feedback is formed by the UE decoding the transport block according to the decoding state and the configured feedback mode, and the feedback mode is ACK/NACK mode or NACK mode; if the feedback is negative feedback, the part of the transport block is or all retransmissions, wherein part or all of the retransmissions of the transport blocks are performed according to HARQ configuration and HARQ enablement.
  • a user equipment includes a processor and a communication circuit, the processor is connected to the communication circuit, and the processor is configured to execute the communication method according to the first aspect.
  • a user equipment stores an instruction, and when the instruction is executed, the communication method of the first aspect is implemented.
  • a base station includes a processor and a communication circuit, the processor is connected to the communication circuit, and the processor is configured to execute the communication method of the second aspect.
  • a base station stores an instruction, and when the instruction is executed, the communication method of the second aspect is implemented.
  • the present application uses the UE to receive the transport block of the MBS service on the physical downlink shared channel, decode the transport block, and send feedback to the base station according to the decoding state and the configured feedback mode, so that the base station is based on the feedback sent by the UE. , corresponding processing can be taken. For example, when the UE fails to receive feedback, the base station can retransmit part or all of the transmission block according to the received negative feedback, thereby ensuring reliable transmission of the MBS service.
  • FIG. 1 is a schematic flowchart of an embodiment of a communication method of the present application.
  • FIG. 2 is a schematic structural diagram of a user equipment/base station according to an embodiment of a communication method of the present application
  • FIG. 3 is a schematic diagram of storage of a user equipment/base station according to an embodiment of the communication method of the present application.
  • FIG. 1 is a schematic flowchart of a communication method provided by an embodiment of the present application.
  • the communication method includes:
  • S110 Receive a transport block of the MBS service on the physical downlink shared channel.
  • a transmission block is a data block containing a MAC PDU (MAC Protocol Data Unit, MAC layer protocol data unit), and this data block will be transmitted on a TTI (Transmission Time Interval, transmission time interval),
  • a TB is divided into many coding blocks (CBs), and multiple CBs are grouped.
  • CBG Code Block Group
  • HARQ Hybrid Automatic Repeat reQuest, hybrid automatic repeat request
  • the UE receives multiple transport blocks of MBS service data sent by the base station through the physical downlink shared channel.
  • S120 Decode the transport block, and send feedback to the base station according to the decoding state and the configured feedback mode, where the feedback mode is ACK/NACK mode or NACK mode.
  • the sent feedback is divided into two types, one is an ACK message and the other is a NACK message.
  • the UE successfully decodes the transport block, it can send a positive feedback ACK message to the base station indicating that the decoding is successful, and also When the UE fails to decode the transport block, a negative feedback NACK message indicating the decoding failure may be sent to the base station.
  • NACK NACK
  • a negative feedback NACK message indicating the decoding failure may be sent to the base station, and when the data block is successfully decoded, no message is sent.
  • the UE decodes the received transport block and sends feedback to the base station according to the decoding state and the configured feedback mode.
  • the decoding state is divided into decoding success and decoding failure, and the corresponding feedback sent for these two states is also different.
  • the configured feedback mode can be configured in various ways on the network side, which is not limited here.
  • the configured feedback mode of the UE is the ACK/NACK mode
  • the base station can be informed that the data of a certain transport block has been successfully decoded or not successfully decoded by sending ACK and NACK messages.
  • the configured feedback mode of the UE is the NACK mode
  • the base station may be notified by sending a NACK message that the data of a certain transport block has not been successfully decoded.
  • the base station can take corresponding processing through the feedback sent by the UE. If the feedback from the UE is negative feedback, the base station can initiate retransmission of some or all of the transport blocks that fail to decode.
  • the configured CBG can be HARQ retransmission. unit, if no CBG is configured, the retransmission is still performed with TB as the retransmission unit, that is, the base station can retransmit the CBG (partial transport block) or transport block that fails to receive. Its retransmission is performed according to HARQ configuration and HARQ enable.
  • the HARQ configuration may include occupied time domain resources and occupied frequency domain resources, etc. for retransmission.
  • HARQ enable is whether to enable or disable the retransmission mechanism.
  • the base station can adopt the HARQ mechanism based on the ACK/NACK feedback.
  • the feedback mode is the NACK mode
  • the base station may adopt the HARQ mechanism based on NACK feedback.
  • the UE receives the transport block of the MBS service on the physical downlink shared channel, decodes the transport block, and sends feedback to the base station according to the decoding state and the configured feedback mode, so that the base station can take corresponding processing according to the feedback sent by the UE. For example, when the UE fails to receive feedback, the base station can initiate retransmission of some or all of the transmission blocks according to the negative feedback received, thereby ensuring reliable transmission of the MBS service.
  • the feedback ACK message or NACK message sent by the UE may be transmitted through the feedback resources of the physical uplink control channel.
  • the feedback resource of the physical uplink control channel may be the feedback resource that shares the same physical uplink control channel with the unicast service, or the feedback resource that does not share the same physical uplink control channel with the unicast service, but separates the physical uplink control channel.
  • the channel feedback resources are defined as the feedback resources of the physical uplink control channel dedicated to the unicast service and the feedback resources of the physical uplink control channel dedicated to the MBS service. Feedback transmission is performed through the feedback resources of the physical uplink control channel dedicated to the MBS service.
  • each UE sends an ACK message or a NACK message using its own independent feedback resources of the physical uplink control channel, so that the base station can distinguish the types of feedback messages sent by each UE.
  • each UE sending a NACK message can use its own independent feedback resources of the physical uplink control channel or share the same feedback resources of the physical uplink control channel.
  • the base station can distinguish which UE sent the NACK feedback, and the base station can choose to retransmit the UE individually. If only one UE in the group sends the NACK message, and this UE is at the edge of the cell, the base station can perform one-to-one retransmission only for this UE, so that the base station saves the resources for initiating retransmission.
  • multiple UEs send NACK messages to share the same feedback resource of the physical uplink control channel this can save the resources of the transmission channel occupied by the feedback.
  • the feedback mode configured by the UE is configured by the network side.
  • the configuration of the feedback mode may be determined by the number of UEs in the group. When the number of UEs in the group is less than the preset threshold, the configuration of the feedback mode is ACK/NACK mode; when the number of UEs in the group is greater than or equal to the preset threshold value, the configuration of the feedback mode is the NACK mode. In this way, when the number of UEs is large, multiple UEs only send NACK feedback, so that fewer feedback resources are occupied. When the number of UEs is small, multiple UEs sending ACK or NACK feedback will not occupy too much. Feedback resources.
  • the feedback mode configured by the UE is configured by the network side.
  • the configuration of the feedback mode can be configured by setting an IE (Information Element, information element) through an RRC (Radio Resource Control, radio resource control).
  • the configuration IE for feedback mode is as follows:
  • an "MBS-HARQ-Mode" IE is set in RRC to configure the feedback mode as ACK/NACK or NACK-only.
  • the feedback mode configured by the UE is configured by the network side.
  • the configuration of the feedback mode can be configured by adding a new logical channel identifier to a MAC CE (MAC Control Element, a control element for medium access control).
  • This new logical channel identification can be added in Table 6.2.1-1 in TS 38.321 as follows:
  • the index value of 63 or the index value of 35 to 46 is temporarily reserved.
  • the logical channel ID of the index value of 63 or any index value from 35 to 46 can be defined as "MBS HARQ Mode" ” to configure feedback mode.
  • the new logical channel identifier can also be added in Table 6.2.1-1a of TS 38.321, as shown in the following table:
  • the index value of 320 to(2 16 +319) is reserved for the logical channel identification. You can select an index value from 320 to(2 16 +319) as the selection of the feedback mode.
  • the logical channel ID of the selected index value is defined as "MBS HARQ Mode" for configuration of the feedback mode.
  • the new logical channel identifier can also be added in Table 6.2.1-1b of TS 38.321, as shown in the following table:
  • index value when the index value is 64 to 308, it is a reserved logical channel identifier, and an index value can be arbitrarily selected from 64 to 308, and its logical channel ID is defined as "MBS HARQ Mode" for feedback mode. Configuration.
  • the logical channel ID is added to "MBS HARQ Mode" through MAC CE, and the number of bytes of this MAC CE is not limited, which can be 1 to N bytes, as shown in the following table.
  • the feedback mode configured by the UE is configured by the network side.
  • the configuration of the feedback mode is configured by using an indication field in downlink control information (Downlink Control Information, DCI).
  • DCI Downlink Control Information
  • 1 bit in the DCI can be used to indicate the feedback mode.
  • the DCI message carrying the feedback mode can be sent through the broadcast control channel, the paging control channel or the MBS control channel, and the UE can monitor the paging control channel through P-RNTI (Paging-Radio Network Temporary Identity, paging wireless network temporary identity). , or by listening to the MBS control channel with the RNTI for the MBS control channel to receive the DCI message containing the feedback mode.
  • P-RNTI Paging-Radio Network Temporary Identity, paging wireless network temporary identity
  • the base station side when receiving the feedback message sent based on the ACK/NACK mode or the NACK mode, the base station side takes corresponding processing according to the type of the feedback message. For example, when receiving an ACK message, the base station does not perform any retransmission, and when receiving a NACK message, the base station initiates retransmission of the MBS service. It can be understood that this is a feedback-based HARQ mechanism.
  • the HARQ mechanism needs to be executed according to a specific HARQ configuration, and the HARQ configuration may include time domain resources occupied by retransmissions, frequency domain resources occupied, and the like.
  • the HARQ configuration can be default or preset, and the preset HARQ configuration is called every time.
  • the HARQ configuration can also be configured by adding IE through RRC.
  • the IE of the added HARQ configuration is as follows:
  • the HARQ configuration can also be configured through MAC CE, for example, select Table 6.2.1-1, Table 6.2.1-1a or Table 6.2.1-1b in TS 38.321 as the reserved index value definition
  • Table 6.2.1-1, Table 6.2.1-1a or Table 6.2.1-1b in TS 38.321 as the reserved index value definition
  • the time domain resources occupied by the retransmission and the occupied frequency domain resources of course, if the index value has been defined as the selection of the feedback mode, other reserved index values can be selected for definition.
  • the HARQ configuration may also be configured through a DCI message, and one or more fields of the DCI message are defined as the time domain resources occupied by the configuration retransmission and the occupied frequency domain resources.
  • the HARQ enabled function may also be indicated in the following manner.
  • the enable indication can be configured by adding IE to RRC.
  • the IE of the added enable indication is as follows:
  • the enable indication can also be configured through MAC CE, for example, select Table 6.2.1-1, Table 6.2.1-1a or Table 6.2.1-1b in TS 38.321 as the reserved index value Define the time domain resources occupied by the retransmission and the occupied frequency domain resources.
  • the index value has been defined as the feedback mode or HARQ configuration, other reserved index values can be selected for definition.
  • FIG. 2 is a schematic structural diagram of an implementation manner of a user equipment or a base station of the present application.
  • the present user equipment or base station 10 includes a processor 12 and a communication circuit 11; the processor 12 is connected to the communication circuit 11, and the processor 12 is configured to execute instructions to implement the above communication method.
  • the processor 12 may also be referred to as a CPU (Central Processing Unit, central processing unit).
  • the processor 12 may be an integrated circuit chip with signal processing capability.
  • Processor 12 may also be a general purpose processor, digital signal processor (DSP), application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components .
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general purpose processor may be a microprocessor or the processor 12 may be any conventional processor or the like.
  • FIG. 3 is a schematic diagram of a storage structure of a user equipment or a base station in an embodiment of the present application.
  • the user equipment or base station 20 in this embodiment of the present application stores instructions/program data 21, and when the instruction/program data 21 is executed, implements any embodiment of the communication method of the present application and the method provided by any non-conflicting combination.
  • the instruction/program data 21 can be stored in the above-mentioned user equipment or the storage medium of the base station 20 in the form of a program file in the form of a software product, so that a computer device (which can be a personal computer, a server, or a network device, etc.) or A processor (processor) executes all or part of the steps of the methods of various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes , or terminal devices such as computers, servers, mobile phones, and tablets.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of units is only a logical function division.
  • there may be other division methods for example, multiple units or components may be combined or integrated. to another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

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Abstract

本申请提供一种提高MBS业务传输可靠性的通信方法，该通信方法包括：在物理下行共享信道上接收MBS业务的传输块；解码传输块，根据解码状态和配置的反馈模式，给基站发送反馈，其中反馈模式为ACK/NACK模式或NACK模式，若反馈为否定反馈，则接收部分传输块的重传，其中重传是所述基站根据HARQ配置和HARQ使能进行的。通过上述方式，使得基站接收到UE的反馈后，基于该反馈对传输失败的MBS业务发起重传，从而提高了MBS业务传输的可靠性。

Description

一种提高MBS业务传输可靠性的通信方法 【技术领域】
本发明的所公开实施例涉及MBS通信技术领域，且更具体而言，涉及一种一种提高MBS业务传输可靠性的通信方法、用户设备及基站。
【背景技术】
LTE的多媒体广播多播业务(Multimedia Broadcast Multicast Service,MBMS)的传输方式可分为SC-PTM(Single Cell Point-To-Multipoint，单小区点到多点)和MBSFN(Multicast-Broadcast Single Frequency Network,多播/组播单频网络)。在SC-PTM的传输方式中，所有的MBMS业务都是经物理下行共享信道传输，通过广播的方式发送给用户设备(User Equipment,UE)，UE对此业务感兴趣则去资源位置接收该MBMS业务，但UE接收到该MBMS业务是否能解码成功并不会给基站发送任何反馈，因此基站也不会进行任何重传以保证业务的可靠性传输。
但在NR(New Radio,新空口)网络的MBS业务中，部分MBS业务对可靠性传输的要求比较高，比如V2X业务，因此，在MBS业务中有保证传输可靠性的需求。
【发明内容】
根据本发明的实施例，本发明提高MBS业务传输可靠性的通信方法来解决上述技术问题。
根据本申请的第一方面，提供了一种提高MBS业务传输可靠性的通信方法，该通信方法在用户设备侧被执行，包括：在物理下行共享信道上接收MBS业务的传输块；解码传输块，根据解码状态和配置的反馈模式，给基站发送反馈，其中反馈模式为ACK/NACK模式或NACK模式；若所述反馈为否定反馈，则接收全部或部分所述传输块的重传，其中所述全部或部分所述传输块的重传是所述基站根据HARQ配置和HARQ使能进行的。
根据本申请的第二方面，提供了一种提高MBS业务传输可靠性的通信方法，该通信方法在基站侧被执行，包括：在物理下行共享信道上发送MBS业务的传 输块；接收来自UE的反馈，其中，反馈是由UE解码传输块，根据解码状态和配置的反馈模式形成的，反馈模式为ACK/NACK模式或NACK模式；若所述反馈为否定反馈，则对所述传输块的部分或全部进行重传，其中所述传输块的部分或全部的重传是根据HARQ配置和HARQ使能进行的。
根据本申请的第三方面，提供了一种用户设备，该用户设备包括处理器和通信电路，处理器连接通信电路，处理器用于执行如第一方面的通信方法。
根据本申请的第四方面，提供了一种用户设备，该用户设备存储有指令，该指令被执行时实现如第一方面的通信方法。
根据本申请的第五方面，提供了一种基站，该基站包括处理器和通信电路，处理器连接通信电路，处理器用于执行如第二方面的通信方法。
根据本申请的第六方面，提供了一种基站，该基站存储有指令，该指令被执行时实现如第二方面的通信方法。
本申请的有益效果是：本申请通过UE在物理下行共享信道上接收MBS业务的传输块，解码传输块，根据解码状态和配置的反馈模式，给基站发送反馈，从而使得基站根据UE发送的反馈，能采取相应的处理，比如UE反馈接收失败时，基站能够根据接收到的否定反馈，对该传输块的部分或全部发起重传，从而保证该MBS业务的可靠传输。
【附图说明】
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。其中：
图1是本申请通信方法实施例的流程示意图；
图2是本申请通信方法实施例的用户设备/基站的结构示意图；
图3是本申请通信方法实施例的用户设备/基站的存储示意图。
【具体实施方式】
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本申请一部分实施例，而不是全部实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性的 劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请提供一种提高MBS业务传输可靠性的通信方法。请参阅图1，图1是本申请实施例提供的通信方法的流程示意图。该通信方法包括：
S110:在物理下行共享信道上接收MBS业务的传输块。
在物理下行共享信道上是以传输块为基本单位进行MBS数据的传输。一个传输块(Transmission Block，TB)就是包含MAC PDU(MAC Protocol Data Unit，MAC层协议数据单元)的一个数据块，这个数据块会在一个TTI(Transmission Time Interval，传输时间间隔)上进行传输，在NR网络中，一个TB被会划分为很多个编码块(CB)，而将多个CB进行分组，分组后的CB称为CBG(Code Block Group)，CBG被配置后可以是HARQ(Hybrid Automatic Repeat reQuest，混合自动重传请求)重传的单位。UE通过物理下行共享信道接收基站发送的MBS业务数据的多个传输块。
S120：解码传输块，根据解码状态和配置的反馈模式，给基站发送反馈，其中反馈模式为ACK/NACK模式或NACK模式。
ACK/NACK模式为发送的反馈分为两种，一种为ACK消息，一种为NACK消息，例如，可以在UE成功解码传输块时，给基站发送一个表示解码成功的肯定反馈ACK消息，也可以在UE解码传输块失败时，给基站发送一个表示解码失败的否定反馈NACK消息。
而NACK模式为发送的反馈只有NACK一种。例如，可以在UE未能成功解码传输块是，给基站发送一个表示解码失败的否定反馈NACK消息，而在成功解码数据块时，不发送任何消息。
UE解码接收的传输块，并根据解码状态和配置的反馈模式，给基站发送反馈。解码状态分为解码成功和解码失败两种，针对这两种状态发送对应的反馈也不一样。而配置的反馈模式可以通过网络侧多种方式进行配置，在这里不做限制。当UE被配置的反馈模式为ACK/NACK模式时，可通过发送ACK和NACK消息告知基站对某个传输块的数据已成功解码或者未成功解码。当UE被配置的反馈模式为NACK模式时，可通过发送NACK消息告知基站对某个传输块的数据未进行成功解码。
S130：若反馈为否定反馈，则接收部分或全部传输块的重传，其中部分或全部传输块的重传是基站根据HARQ配置和HARQ使能进行的。
基站通过UE发送的反馈，能采取相应的处理，若UE的反馈为否定反馈时，基站能够发起对部分或全部解码失败的传输块进行重传，如上述被配置的CBG可以是HARQ的重传单位，若未配置CBG，还是以TB为重传单位进行重传，即基站可以对接收失败的CBG(部分传输块)或传输块进行重传。其重传是根据HARQ配置和HARQ使能进行的。HARQ配置可包括重传所占用的时域资源和所占用的频域资源等。HARQ使能为是否打开或者关闭该重传机制。可以理解的是，当反馈模式为ACK/NACK模式时，基站可以采用基于ACK/NACK反馈的HARQ机制。当反馈模式为NACK模式时，基站可以采用基于NACK反馈的HARQ机制。
本申请通过UE在物理下行共享信道上接收MBS业务的传输块，解码传输块，根据解码状态和配置的反馈模式，给基站发送反馈，从而使得基站根据UE发送的反馈，能采取相应的处理，比如UE反馈接收失败时，基站能够根据接收的否定反馈，对部分或全部传输块发起重传，从而保证该MBS业务的可靠传输。
在一实施例中，UE发送的反馈ACK消息或NACK消息可通过物理上行控制信道的反馈资源进行传输。该物理上行控制信道的反馈资源可以是和单播业务共享相同的物理上行控制信道的反馈资源，也可以是不和单播共享相同的物理上行控制信道的反馈资源，而是另外把物理上行控制信道的反馈资源定义分为单播业务专用的物理上行控制信道的反馈资源和MBS业务专用的物理上行控制信道的反馈资源，通过MBS业务专用的物理上行控制信道的反馈资源进行反馈的传输。
基于ACK/NACK模式下，每个UE发送ACK消息或NACK消息使用各自独立的物理上行控制信道的反馈资源，从而使得基站区分每个UE发送的反馈消息的类型。
而基于NACK模式下，每个UE发送NACK消息可以使用各自独立的物理上行控制信道的反馈资源或者共享相同的物理上行控制信道的反馈资源。当每个UE发送NACK消息使用各自独立的物理上行控制信道的资源时，基站收到NACK消息后，能区分是哪个UE发送的NACK反馈，基站可以选择单独给该UE进行重传。如组内只有一个UE发送了NACK消息，这个UE在小区边缘，基站可以只针对该UE进行一对一的重传，这样使得基站节省了发起重传的资源。当多个UE发送NACK消息共享相同的物理上行控制信道的反馈资源时，这样可节省反馈所占用的传输信道的资源。
如上述，UE配置的反馈模式是由网络侧进行配置的。在一实施例中，反馈模式的配置可由组内UE的数量决定，当组内UE的数量小于预设的门限值，则反馈模式的配置为ACK/NACK模式；当组内UE的数量大于或等于预设的门限值，则反馈模式的配置为NACK模式。通过此种方式，在UE数量较多时，多个UE都只发送NACK反馈从而使得占用的反馈资源较少，当UE数量较少时，多个UE发送ACK或NACK反馈也不会占用太多的反馈资源。
如上述，UE配置的反馈模式是由网络侧进行配置的。在一实施例中，反馈模式的配置可通过RRC(Radio Resource Control，无线资源控制)设置IE(Information Element，信息单元)进行配置。例如反馈模式的配置IE如下所示：
MBS-Feedback-Config::＝  SEQUENCE{
  MBS–HARQ–Mode         ENUMERATED{ACK/NACK,NACK-only}
OPTIONAL,  --Need M
从上可得知，在RRC中设置了一个“MBS–HARQ–Mode”的IE，来配置反馈模式为ACK/NACK或NACK-only。
如上述，UE配置的反馈模式是由网络侧进行配置的。在一实施例中，反馈模式的配置可通过MAC CE(MAC Control Element，介质访问控制的控制单元)增加新的逻辑信道标识进行配置。这个新的逻辑信道标识可以增加在TS 38.321中的表6.2.1-1中，如下所示：
表6.2.1-1下行链路共享信道的LCID值
Figure PCTCN2021071888-appb-000001
从上表可以得知，索引值为63或索引值为35～46暂为预留位，可以把索引值63或从35～46中任选一个索引值的逻辑信道ID定义为“MBS HARQ Mode”，以进行反馈模式的配置。
可选地，新的逻辑信道标识也可以增加在TS 38.321的表6.2.1-1a，如下表所示：
表6.2.1-1a下行共享信道的两字节的eLCID的值
代码点 索引值 LCID值
0 to(2 16–1) 320 to(2 16+319) 逻辑信道标识
从上表可以得知，索引值为320 to(2 16+319)都是是预留做逻辑信道标识，可以从320 to(2 16+319)选择一个索引值作反馈模式的选择，把该选择的索引值的逻辑信道ID定义为“MBS HARQ Mode”，以进行反馈模式的配置。
可选地，新的逻辑信道标识也可以增加在TS 38.321的表6.2.1-1b，如下表所示：
表6.2.1-1b下行共享信道一字节的eLCID的值
Figure PCTCN2021071888-appb-000002
从上表可以得知，索引值为64～308时是预留的逻辑信道标识，可以从64～308任意选择一个索引值，定义它的逻辑信道ID为“MBS HARQ Mode”，以进行反馈模式的配置。
如上述的通过MAC CE增加逻辑信道ID为“MBS HARQ Mode”，对此MAC CE的字节数不做限制，可以是1～N个字节，如下表所示。
D 7 D 6 D 5 D 4 D 3 D 2 D 1 D 0
例如MAC CE为1个字节时，D 0＝1时，表示ACK/NACK，D0＝0时表示NACK-only。
如上述，UE配置的反馈模式是由网络侧进行配置的。在一实施例中，反馈模式的配置通过使用下行控制信息(Downlink Control Information,DCI)中的指示字段进行配置。例如可使用DCI中的1比特进行指示反馈模式。携带反馈模式的DCI消息可通过广播控制信道、寻呼控制信道或MBS控制信道进行发送，UE可通过P-RNTI(Paging-Radio Network Temporary Identity，寻呼无线网络临时标识)来监听寻呼控制信道，或者通过用针对MBS控制信道的RNTI来监听MBS控制信道，以接收该包含反馈模式的DCI消息。
如上述，基站侧在接收到基于ACK/NACK模式或NACK模式发送的反馈消息时，根据反馈消息的类型，采取相应的处理。比如当收到ACK消息时，基站不做任何重传，而当收到NACK消息时，则基站则发起MBS业务的重传，可以理解的是，这就是基于反馈的HARQ机制。
在一实施例中，HARQ机制需要按照特定的HARQ配置去执行，HARQ配置可包括重传所占用的时域资源和所占用的频域资源等。HARQ配置可以是默 认的，或者预先设定好的，每次调用该预设的HARQ配置。当然，HARQ配置也可以是通过RRC增加IE的方式进行配置，例如，增加的HARQ配置的IE如下所示：
Figure PCTCN2021071888-appb-000003
可选地，HARQ配置也可以是通过MAC CE进行配置，例如，选取TS 38.321中的表6.2.1-1、表6.2.1-1a或表6.2.1-1b中作为预留的索引值定义重传所占用的时域资源和所占用的频域资源，当然若索引值已被已定义为反馈模式的选择，可以选取其他的预留的索引值进行定义。
可选地，HARQ配置还可以是通过DCI消息进行配置，定义DCI消息的一字段或多个字段作为配置重传所占用的时域资源和所占用的频域资源。
在另一实施例中，HARQ使能功能也可以通过如下方式进行指示。
使能指示可以通过RRC增加IE的方式进行配置，例如，增加的使能指示的IE如下所示：
MBS-LogicalChannelConfig-r16::＝  SEQUENCE{
MBS–HARQ–FeddbackEnabled-r17    ENUMERATED{enabled,disabled}
OPTIONAL,   --Need R
可选地，使能指示也可以是通过MAC CE进行配置，例如，选取TS 38.321中的表6.2.1-1、表6.2.1-1a或表6.2.1-1b中作为预留的索引值定义重传所占用的时域资源和所占用的频域资源，当然若索引值已被已定义为反馈模式或HARQ配置，可以选取其他的预留的索引值进行定义。
可选地，使能指示配置还可以是通过DCI消息进行配置，定义DCI消息的一字段或多个字段作为使能指示。参阅图2，图2是本申请用户设备或基站一实施方式的结构示意图。本用户设备或基站10包括处理器12和通信电路11；处理器12连接通信电路11，处理器12用于执行指令以实现上述通信方法。
处理器12还可以称为CPU(Central Processing Unit，中央处理单元)。处理器12可能是一种集成电路芯片，具有信号的处理能力。处理器12还可以是 通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。通用处理器可以是微处理器或者该处理器12也可以是任何常规的处理器等。
请参阅图3，图3为本申请实施方式中用户设备或基站的存储结构示意图。本申请实施例的用户设备或基站20存储有指令/程序数据21，该指令/程序数据21被执行时实现本申请的通信方法的任一实施例以及任意不冲突的组合所提供的方法。其中，该指令/程序数据21可以形成程序文件以软件产品的形式存储在上述用户设备或基站20的存储介质中，以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本申请各个实施方式方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质，或者是计算机、服务器、手机、平板等终端设备。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
以上仅为本申请的实施方式，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (24)

  1. 一种提高MBS业务传输可靠性的通信方法，所述通信方法在UE侧被执行，所述通信方法包括：
    在物理下行共享信道上接收MBS业务的传输块；
    解码所述传输块，根据解码状态和配置的反馈模式，给基站发送反馈，其中所述反馈模式为ACK/NACK模式或NACK模式；若所述反馈为否定反馈，则接收全部或部分所述传输块的重传，其中所述全部或部分所述传输块的重传是所述基站根据HARQ配置和HARQ使能进行的。
  2. 根据权利要求1所述的通信方法，其特征在于，所述给基站发送反馈进一步包括：
    通过物理上行控制信道的反馈资源给所述基站发送所述反馈。
  3. 根据权利要求2所述的通信方法，其特征在于，所述物理上行控制信道的反馈资源是和单播业务共享相同的物理上行控制信道的反馈资源。
  4. 根据权利要求2所述的通信方法，其特征在于，所述物理上行控制信道的反馈资源是进行单独配置的，不和单播业务共享物理上行控制信道的反馈资源。
  5. 根据权利要求2所述的通信方法，其特征在于，所述ACK/NACK模式为若解码成功，给所述基站发送表示肯定反馈的ACK消息，若解码失败，给所述基站发送表示否定反馈的NACK消息，其中，所述UE使用各自独立的物理上行控制信道的反馈资源给所述基站发送所述ACK消息或所述NACK消息
  6. 根据权利要求2所述的通信方法，其特征在于，所述NACK模式为若解码成功，不发送任何反馈消息，若解码失败，给所述基站发送表示否定反馈的NACK消息，其中，所述UE使用各自独立的物理上行控制信道的反馈资源给所述基站发送所述NACK消息，或所述UE共享相同的物理上行控制信道的反馈资源给所述基站发送所述NACK消息。
  7. 根据权利要求1所述的通信方法，其特征在于，根据配置的反馈模式，给基站发送反馈进一步包括：
    所述反馈模式的配置由组内所述UE的数量决定，当组内所述UE的数量小 于预设的门限值，则所述反馈模式的配置为ACK/NACK模式；当组内所述UE的数量大于或等于预设的门限值，则所述反馈模式的配置为NACK模式。
  8. 根据权利要求7所述的通信方法，其特征在于，所述反馈模式的配置通过无线资源控制增加信息元素进行配置，或通过媒介接入控制的控制元素增加逻辑信道标识进行配置，或使用下行控制信息中的指示字段进行配置。
  9. 根据权利要求1所述的通信方法，其特征在于，所述HARQ配置通过无线资源控制增加信息元素进行配置，或通过媒介接入控制的控制元素增加逻辑信道标识进行配置，或使用下行控制信息中的指示字段进行配置。
  10. 根据权利要求1所述的通信方法，其特征在于，所述HARQ使能通过无线资源控制增加信息元素进行指示，或通过媒介接入控制的控制元素增加逻辑信道标识进行指示，或使用下行控制信息中的指示字段进行指示。
  11. 一种提高MBS业务传输的可靠性的通信方法，所述通信方法在基站侧被执行，所述通信方法包括：
    在物理下行共享信道上发送MBS业务的传输块；
    接收来自UE的反馈，其中，所述反馈是由所述UE解码所述传输块，根据解码状态和配置的反馈模式形成的，所述反馈模式为ACK/NACK模式或NACK模式；
    若所述反馈为否定反馈，则对所述传输块的部分或全部进行重传，其中所述传输块的部分或全部的重传是根据HARQ配置和HARQ使能进行的。
  12. 根据权利要求11所述的通信方法，其特征在于，所述接收来自UE的反馈进一步包括：
    通过物理上行控制信道的反馈资源接收来自所述UE的所述反馈。
  13. 根据权利要求12所述的通信方法，其特征在于，所述物理上行控制信道的反馈资源是和单播业务共享相同的物理上行控制信道的反馈资源。
  14. 根据权利要求12所述的通信方法，其特征在于，所述物理上行控制信道的反馈资源是进行单独配置的，不和单播业务共享物理上行控制信道的反馈资源。
  15. 根据权利要求12所述的通信方法，其特征在于，所述ACK/NACK模式为若所述UE解码成功，接收来自所述UE发送的表示肯定反馈的ACK消息，若所述UE解码失败，接收来自所述UE发送的表示否定反馈的NACK消息， 其中，所述基站接收来自所述UE使用各自独立的物理上行控制信道的反馈资源发送的所述ACK消息或所述NACK消息。
  16. 根据权利要求12所述的通信方法，其特征在于，所述NACK模式为若所述UE解码成功，未接收任何反馈消息，若所述UE解码失败，接收来自所述UE发送的表示否定反馈的NACK消息，其中，所述基站接收来自所述UE使用各自独立的物理上行控制信道的资源发送的所述NACK消息，或所述基站接收来自所述UE共享相同的物理上行控制信道的资源发送的所述NACK消息。
  17. 根据权利要求11所述的通信方法，其特征在于，根据配置的反馈模式，给基站发送反馈进一步包括：
    所述反馈模式的配置由组内所述UE的数量决定，当组内所述UE的数量小于预设的门限值，则所述反馈模式的配置为ACK/NACK模式；当组内所述UE的数量大于或等于预设的门限值，则所述反馈模式的配置为NACK模式。
  18. 根据权利要求11所述的通信方法，其特征在于，所述反馈模式的配置通过无线资源控制增加信息元素进行配置，或通过媒介接入控制的控制元素增加逻辑信道标识进行配置，或使用下行控制信息中的指示字段进行配置。
  19. 根据权利要求11所述的通信方法，其特征在于，所述HARQ配置通过无线资源控制增加信息元素进行配置，或通过媒介接入控制的控制元素增加逻辑信道标识进行配置，或使用下行控制信息中的指示字段进行配置。
  20. 根据权利要求11所述的通信方法，其特征在于，所述HARQ使能通过无线资源控制增加信息元素进行指示，或通过媒介接入控制的控制元素增加逻辑信道标识进行指示，或使用下行控制信息中的指示字段进行指示。
  21. 一种用户设备，其特征在于，包括处理器和通信电路，所述处理器连接所述通信电路；
    所述处理器用于执行上述权利要求1-10中任一项所述的通信方法。
  22. 一种用户设备，存储有指令，其特征在于，所述指令被执行时实现如权利要求1-10中任一项所述的通信方法。
  23. 一种基站，其特征在于，包括处理器和通信电路，所述处理器连接所述通信电路；
    所述处理器用于执行上述权利要求11-20中任一项所述的通信方法。
  24. 一种基站，存储有指令，其特征在于，所述指令被执行时实现如权利要求11-20中任一项所述通信方法。
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107041008A (zh) * 2015-11-06 2017-08-11 英特尔Ip公司 移动终端设备和移动通信设备中的方法
CN107682128A (zh) * 2017-08-31 2018-02-09 宇龙计算机通信科技(深圳)有限公司 数据传输方法、装置、设备及存储介质
WO2018175084A1 (en) * 2017-03-24 2018-09-27 Qualcomm Incorporated Hybrid automatic repeat request buffer configuration
CN110830184A (zh) * 2018-08-09 2020-02-21 北京三星通信技术研究有限公司 块传输方法、下行传输方法、nrs接收方法、ue、基站和介质
CN111565089A (zh) * 2019-02-13 2020-08-21 索尼公司 电子装置、无线通信方法和计算机可读介质

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118174830A (zh) * 2019-01-09 2024-06-11 交互数字专利控股公司 侧链路反馈信道
CN111865485B (zh) * 2019-04-30 2024-09-24 北京三星通信技术研究有限公司 Harq反馈方法及执行harq反馈方法的ue
KR102688336B1 (ko) * 2019-05-03 2024-07-26 엘지전자 주식회사 다중 전송 블록 스케줄링을 위한 신호의 송수신 방법 및 이를 위한 장치
WO2021159466A1 (en) * 2020-02-14 2021-08-19 Mediatek Singapore Pte. Ltd. Methods and apparatus of group scheduling for nr multicast service
US20230239170A1 (en) * 2020-06-30 2023-07-27 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for multicast communication
WO2022001790A1 (en) * 2020-06-30 2022-01-06 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for multicast communication
CN118984208A (zh) * 2020-10-22 2024-11-19 欧芬诺有限责任公司 多播和广播服务的harq反馈
EP4136794B1 (en) * 2020-11-09 2025-05-14 Ofinno, LLC Discontinuous reception operation of multicast and broadcast services
CN114553379B (zh) * 2020-11-24 2024-05-14 华为技术有限公司 资源处理方法、装置、系统及存储介质

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107041008A (zh) * 2015-11-06 2017-08-11 英特尔Ip公司 移动终端设备和移动通信设备中的方法
WO2018175084A1 (en) * 2017-03-24 2018-09-27 Qualcomm Incorporated Hybrid automatic repeat request buffer configuration
CN107682128A (zh) * 2017-08-31 2018-02-09 宇龙计算机通信科技(深圳)有限公司 数据传输方法、装置、设备及存储介质
CN110830184A (zh) * 2018-08-09 2020-02-21 北京三星通信技术研究有限公司 块传输方法、下行传输方法、nrs接收方法、ue、基站和介质
CN111565089A (zh) * 2019-02-13 2020-08-21 索尼公司 电子装置、无线通信方法和计算机可读介质

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4280496A4 *

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