WO2012065525A1

WO2012065525A1 - Transmission method and device for hybrid automatic repeat request

Info

Publication number: WO2012065525A1
Application number: PCT/CN2011/082085
Authority: WO
Inventors: 毕峰; 梁枫; 杨瑾; 袁明; 吴栓栓; 袁弋非; 王斌
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-11-18
Filing date: 2011-11-11
Publication date: 2012-05-24
Also published as: CN102468949B; CN102468949A

Abstract

Disclosed in the present invention are atransmission method and a device for Hybrid Automatic Repeat Request (HARQ). Wherein the method comprises the following steps: when a backhaul link subframe configuration of a network device is switched, the network device, according to the relationship of the backhaul link subframe configurations before and after the switching, determines a transmission type of the uplink HARQ processes; wherein the backhaul link subframe configuration includes the number of the uplink HARQ processes which correspond to the backhaul link subframes; the network device transmits the HARQ in the switched HARQ process according to the determined transmission type, or receives the HARQ in the switched HARQ process according to the determined transmission type. With the present invention, the confusion problem of the uplink HARQ transmission sequence due to the switching of the subframe configuration is resolved, thereby the application processing of the subsequent HARQ is ensured and the system performance is improved.

Description

混合自动重传请求的传输方法和装置技术领域本发明涉及通信领域，具体而言，涉及一种混合自动重传请求的传输方法和装置。背景技术 LTE-A (Long Term Evolution Advanced, 高级的长期演进***） ***中引入 RN TECHNICAL FIELD The present invention relates to the field of communications, and in particular to a method and apparatus for transmitting a hybrid automatic repeat request. BACKGROUND OF THE INVENTION RN-A (Long Term Evolution Advanced) system introduces RN

(Relay Node, 中继节点）之后增加了新的链路，如图 1所示，包括： eNode-B与 RN 之间的链路称为 backhaul link (回程链路或中继链路）、 RN与 UE (User Equipment, 用户设备）之间的链路称为 access link (接入链路）、 eNode-B与 UE之间的链路称为 direct link (直传链路）。在采用带内中继 inband-relay时，即 eNode-B到 relay链路和 relay到 UE链路运作在相同的频率资源上。因为 inband-relay发射机会对自己的接收机产生干扰（自干扰），所以 eNode-B到 relay链路和 relay到 UE链路同时在相同的频率资源上是不可能的，除非有足够的信号分离和天线隔离度。相似的， relay也不可能在接收 UE所发射的数据的同时再给 eNode-B发射。一个可能的收发干扰问题的解决方法是使得 relay在接收来自 eNode-B的数据时，不向 UE进行发射操作，也就是说在 relay到 UE链路后需要增加" gap(时隙） "，通过配置 MB SFN( Multicast Broadcast Single Frequency Network, 多播广播单频网络）子帧（subframe)用于 backhaul subframe, 使得 UE在 " gap " 时间范围内不进行任何接收 /发射操作，而 Relay在 "gap " 时间范围内完成发射到接收的切换，切换完成后在后面的 OFDM ( Orthogonal Frequency Division Multiplex, 正交频分复用）符号接收来自 e B 的数据。目前在 LTE中采用 MBSFN subframe用于 backhaul subframe ，其具体的方式是： MCE (MBMS Control Entity, 多媒体控制实体）首先给 eNode-B配置可用的 MBSFN subframe, eNode-B再在这些可用的 MBSFN subframe中配置可用的 backhaul subframe„ 依照目前 LTE (Long Term Evolution, 长期演进***） ***中的规定， 1个 10ms 无线帧 frame由 10个 1ms的子帧 subframe构成，如图 2所示，每个无线帧由 OFDM 符号构成，可包括 Unicast (单播）禾 P Multicast Broadcast (多播广播），其中在 FDD (Frequency Division Duplex, 频分双工）方式时， #0、 #5子帧用作发射同步信号，而 #4、 #9子帧用作寻呼 paging, 在 TDD ( Time Division Duplex, 时分双工）方式时， #0、 #5子帧用作发射同步信号，而 #1、 #6子帧用作寻呼 paging, 也就是说对于 FDD{#0、 #4、 #5、 #9}子帧， TDD{#0、 #1、 #5、 #6}子帧有上述特殊用途，所以不能用于 MBSFN subframe的分配，即在 1个无线帧 frame里可分配的 MBSFN subframe最多为 6个子巾贞 subframe。在 LTE ***中，用户设备和基站之间对于数据的传输需要建立 HARQ (Hybrid Automatic Repeat Request, 混合自动重传请求）进程并进行相应的反馈。当基站接收到用户设备的数据后，基站根据解码情况生成下行反馈信息或上行授权信息（UL grant), 并将上述信息下行发送给用户设备。其中，下行反馈信息是指确认 /非确认信号（ACK/NACK, Acknowledgement/ Negative Acknowledgement), 上行授权信息主要包括新数据指示（NDI， New Data Indicator ) 调制编码方案（MCS， Modulation and Coding Scheme ) 资源分配（RA， Resource Allocation)等信息。用户设备根据接收到的信息进行下一步处理，如果收到 ACK或 NDI=1或 0，则继续传输新的数据，若收到 NACK或 DI=0或 1，则将在相同的 HARQ进程上把数据重新发送给基站。上述内容也就是说，中继链路因为不能使用 FDD{#0、 #4、 #5、 #9}下行子帧，相应的也不能使用 FDD{#4、 #8、 #9、 #3}上行子帧。目前对于上行 HARQ的设计主要包括仅使用 8ms或 16ms倍数的下上行子帧组合，即假设在 40ms范围内，下行子帧 8 个集合包括 {(#7 #23 #31)、（#6 #22 #38)、（#13 #21 #37)、（#12 #28 #36)、（#3 #11 #27)、 (#2 #18 #26) (#1 #17 #33)、(#8 #16 #32)}，对应的上行子帧 8个集合包括 {(#11 #27 #35)、 (#10 #26 #42)、 (#17 #25 #41)、 (#16 #32 #40)、 (#7 #15 #31)、 (#6 #22 #30)、 (#5 #21 #37)、 (#12 #20 #36)}，其中大于 "40" 的子帧在计算过程中可以对 "40"求模运算，例如 mod (42， 40) =2。具体的，集合索引如表 1所示，但集合和集合索引之间不限于所述对应关系。在进行子帧分配时才有 8比特的 bitmap方式，即 8bits的二进制分别对应不同的集合索引，接收端只要获取了集合索引也就获取了子帧配置。表 1 A new link is added after the (Relay Node, relay node), as shown in Figure 1, including: The link between the eNode-B and the RN is called backhaul link (backhaul link or relay link), RN The link between the user equipment (User Equipment) and the UE is called the access link. The link between the eNode-B and the UE is called direct link. When in-band relay inband-relay is used, that is, eNode-B to relay link and relay to UE link operate on the same frequency resource. Since the inband-relay transmitter will interfere with its own receiver (self-interference), it is impossible for the eNode-B to relay link and relay to the UE link to be on the same frequency resource, unless there is enough signal separation. And antenna isolation. Similarly, it is also impossible for the relay to transmit to the eNode-B while receiving the data transmitted by the UE. A possible solution to the problem of transceiving interference is to cause the relay to not transmit to the UE when receiving data from the eNode-B, that is, to increase the "gap" after the relay to the UE link, The MBSF (Multicast Broadcast Single Frequency Network) subframe is configured for backhaul subframe, so that the UE does not perform any receiving/transmitting operation in the "gap" time range, and the relay is in "gap". The handover from transmission to reception is completed in the time range, and the data from e B is received in the following OFDM (Orthogonal Frequency Division Multiplex) symbol after the handover is completed. Currently, the MBSFN subframe is used in the LTE for the backhaul subframe, and the specific manner is: MCE (MBMS Control Entity, multimedia control entity) First, the eNode-B is configured with the available MBSFN subframe, and the eNode-B is in the available MBSFN subframe. Configure the available backhaul subframes. According to the current LTE (Long Term Evolution) system, a 10ms radio frame is composed of 10 1ms subframes. As shown in Figure 2, each radio frame consists of The OFDM symbol structure may include a Unicast (Multicast Broadcast), where the #0, #5 subframe is used as a transmit synchronization signal in the FDD (Frequency Division Duplex) mode. #4, #9 subframes are used for paging paging. In the TDD (Time Division Duplex) mode, #0, #5 subframes are used as transmission synchronization signals, while #1, #6 subframes are used. Paging paging, that is, for FDD{#0, #4, #5, #9} subframes, TDD{#0, #1, #5, #6} subframes have the above special use, so they cannot be used. The allocation of MBSFN subframe, ie in 1 radio frame fr The MBSFN subframe that can be assigned in ame is up to 6 sub- 贞贞 subframe. In the LTE system, a HARQ (Hybrid Automatic Repeat Request) process needs to be established for the transmission of data between the user equipment and the base station, and corresponding feedback is performed. After receiving the data of the user equipment, the base station generates downlink feedback information or uplink grant information (UL grant) according to the decoding situation, and sends the foregoing information to the user equipment. The downlink feedback information refers to an acknowledge/non-acknowledgement signal (ACK/NACK, Acknowledgement/ Negative Acknowledgement), and the uplink grant information mainly includes a New Data Indicator (MCS) Modulation and Coding Scheme (MCS) resource. Information such as RA (Resource Allocation). The user equipment performs the next processing according to the received information. If ACK or NDI=1 or 0 is received, the new data is continuously transmitted. If NACK or DI=0 or 1 is received, the user equipment will be on the same HARQ process. The data is resent to the base station. In other words, the relay link cannot use the FDD{#0, #4, #5, #9} downlink subframes, and the corresponding FDD{#4, #8, #9, #3} cannot be used. Uplink subframe. At present, the design of the uplink HARQ mainly includes the following uplink subframe combination using only 8 ms or 16 ms multiples, that is, assuming that within the 40 ms range, the 8 sets of the downlink subframe include {(#7 #23 #31), (#6 #22 #38), (#13 #21 #37), (#12 #28 #36), (#3 #11 #27), (#2 #18 #26) (#1 #17 #33), (# 8 #16 #32)}, the corresponding 8 sets of uplink subframes include {(#11 #27 #35), (#10 #26 #42), (#17 #25 #41), (#16 #32 #40), (#7 #15 #31), (#6 #22 #30), (#5 #21 #37), (#12 #20 #36)}, where the subframe larger than "40" is The "40" modulo operation can be performed during the calculation, for example mod (42, 40) = 2. Specifically, the set index is as shown in Table 1, but the set and the set index are not limited to the corresponding relationship. In the case of sub-frame allocation, there is an 8-bit bitmap mode, that is, the 8-bit binary corresponds to different set indexes, and the receiving end acquires the sub-frame configuration as long as the set index is acquired. Table 1

实际上， 1个下行子帧集合对应 1个上行子帧集合，也就说从下上行子帧集合整体来看，共 8个下上行子帧集合，则不同的集合组合在一起的情况共包括 2的 8次方个组合（即 256个组合）。具体的， 256个组合情况对应的 HARQ进程数如表 2所示，其中第 1 列中的组合配置使用的是十进制，例如 " 170 "表示的 8bits 的二进制为 " 10101010"，则表示集合索引为 "7"、 " 5 "、 "3 "、 " 1 "对应的集合组合在一起。表 2. In fact, one downlink subframe set corresponds to one uplink subframe set, that is to say, from the overall uplink subframe set, a total of eight lower uplink subframe sets, and different sets are combined. The 8th power combination of 2 (ie 256 combinations). Specifically, the number of HARQ processes corresponding to 256 combinations is as shown in Table 2. The combination configuration in the first column uses decimal. For example, the binary of 8bits represented by "170" is "10101010", which means that the collection index is a collection corresponding to "7", "5", "3", "1". combine it all toghther. Table 2.

其中，上述表 1和表 2中的子帧数包括上行子帧数 (UL subframe number)和下行子巾贞数 (DL subframe number), 其中， DL subframe number =10*SFN+DL subframe index; UL subframe number=10*SFN+UL subframe index。其中， SFN表示***帧号 ( System Frame Number); DL subframe index表不 1个 frame中包括的 10个 subframe 的索引，其范围为（#0、 #1、 #2、 #3、 #4、 #5、 #6、 #7、 #8、 #9)； UL subframe index 表示 1个 frame中包括的 10个 subframe的索引，其范围为（#0、 #1、 #2、 #3、 #4、 #5、 #6、 #7、 #8、 #9)。表 1和表 2中的不同的组合对应不同的上行 HARQ进程数，在 1个子帧配置周期内（例如 40ms的整数倍），不同的上行 HARQ进程都可以按照先后顺序正常执行，但是在子帧配置发生切换时，上行 HARQ进程时序可能会发生变化，这使得上行 HARQ 进程不能按照上 1个子帧配置周期内的顺序执行，从而导致上行 HARQ传输顺序混乱，影响后续 HARQ的应用处理。发明内容本发明提供了一种混合自动重传请求的传输方法和装置，以至少解决上述子帧配置发生切换时的上行 HARQ传输顺序混乱问题。根据本发明的一个方面，提供了一种混合自动重传请求 HARQ的传输方法，包括: 当网络设备的中继链路子帧配置发生切换时，网络设备根据切换前后中继链路子帧配置的关系，确定上行 HARQ进程的传输方式；其中，该中继链路子帧配置包括中继链路子帧对应的上行 HARQ进程数；网络设备按照确定的传输方式在切换后的上行 HARQ进程上发送 HARQ,或是按照确定的传输方式在切换后的上行 HARQ进程上接收 HARQ。优选地，上述网络设备根据切换前后上述中继链路子帧配置的关系，确定上行 HARQ进程传输方式包括：该网络设备判断切换后的中继链路子帧配置与切换前的中继链路子帧配置的关系，其中，该关系包括包含关系、子集关系以及相同关系；网络设备根据判断出的关系确定上行 HARQ进程的传输方式。优选地，网络设备根据判断出的关系确定上行 HARQ进程的传输方式包括：该网络设备判断出切换后的中继链路子帧配置包含切换前的中继链路子帧配置时，确定上行 HARQ进程的传输方式为：切换前待发送的上行 HARQ进程依次映射在切换后的指定个 HARQ进程上；其中，切换前待发送的上行 HARQ进程包括以下之一：切换前的所有上行 HARQ进程；切换前没有完成正确传输的上行 HARQ进程。优选地，网络设备根据判断出的关系确定上行 HARQ进程的传输方式包括：该网络设备判断出切换后的中继链路子帧配置是切换前的中继链路子帧配置的子集时，确定上行 HARQ进程的传输方式为：切换前待发送的上行 HARQ进程依次映射在切换后的指定个 HARQ进程上；其中，切换前待发送的上行 HARQ进程包括以下之一：丢弃或者挂起预设个数的切换前上行 HARQ进程后剩余的上行 HARQ进程；丢弃或者挂起切换前没有完成正确传输的上行 HARQ进程后剩余的上行 HARQ 进程；切换前没有完成正确传输的上行 HARQ进程; 丢弃或者挂起部分切换前的上行 HARQ进程后剩余的上行 HARQ进程，该部分切换前的上行 HARQ进程的进程号不在切换后的上行 HARQ进程的进程号中。优选地，指定个 HARQ进程为以下之一：从第一个可用的 HARQ进程开始的 N 个上行 HARQ进程，其中， N等于切换前待发送的上行 HARQ进程数；与切换前待发送的上行 HARQ进程号相同的上行 HARQ进程号对应的上行 HARQ进程上。优选地，网络设备根据判断出的关系确定上行 HARQ进程的传输方式包括：该网络设备判断出切换后的中继链路子帧配置与切换前的中继链路子帧配置相同时，该网络设备确定上行 HARQ进程的传输方式为以下之一：保持切换前上行 HARQ进程映射顺序不变；切换前没有完成正确传输的上行 HARQ 进程依次映射在切换后从第一个可用的 HARQ进程开始的指定个上行 HARQ进程；切换前没有完成正确传输的上行 HARQ进程依次映射在切换后相同的上行 HARQ 进程号对应的上行 HARQ进程上。优选地，网络设备根据切换前后中继链路子帧配置的关系，确定上行 HARQ进程传输方式包括：该网络设备判断第二上行 HARQ进程数与第一上行 HARQ进程数的关系；其中，第一上行 HARQ进程数为切换前的中继链路子帧配置对应的上行 HARQ 进程数，或者是切换前没有完成正确传输的上行 HARQ进程数；第二上行 HARQ进程数为切换后的中继链路子帧配置对应的上行 HARQ进程数；该网络设备根据判断出的关系确定上行 HARQ进程的传输方式。优选地，网络设备根据判断出的关系确定上行 HARQ进程的传输方式包括：该网络设备判断出第二上行 HARQ进程数小于所述第一上行 HARQ进程数时，确定上行 HARQ进程的传输方式为：切换前待发送的上行 HARQ进程依次映射在切换后的从第一个可用的 HARQ 进程开始的指定个 HARQ 进程上；其中，切换前待发送的上行 HARQ进程包括以下之一：丢弃或者挂起预设个数的切换前上行 HARQ进程后剩余的上行 HARQ进程；丢弃或者挂起切换前没有完成正确传输的上行 HARQ进程后剩余的上行 HARQ 进程；切换前没有完成正确传输的上行 HARQ进程。优选地，网络设备根据判断出的关系确定上行 HARQ进程的传输方式包括：网络设备判断出所述第二上行 HARQ进程数大于或等于所述第一上行 HARQ进程数时，确定上行 HARQ进程的传输方式为：切换前待发送的上行 HARQ进程依次映射在切换后的从第一个可用的 HARQ进程开始的指定个 HARQ进程上；其中，切换前待发送的上行 HARQ进程包括以下之一：切换前的所有上行 HARQ进程；切换前没有完成正确传输的上行 HARQ进程。优选地，网络设备根据切换前后所述中继链路子帧配置的关系，确定上行 HARQ 进程的传输方式为：丢弃或挂起所有切换前上行 HARQ进程，确定切换后的 HARQ 进程用于传输新数据，该新数据包括：切换后生成的数据，和 /或重新激活被挂起的 HARQ进程对应的数据。优选地，网络设备按照确定的传输方式在切换后的所述上行 HARQ 进程上发送 HARQ之后，该方法还包括：在切换后没有被映射的上行 HARQ进程上发送新数据；网络设备按照确定的传输方式在切换后的上行 HARQ进程上接收 HARQ之后，该方法还包括：在切换后没有被映射的上行 HARQ进程上接收新数据；该新数据包括：切换后生成的数据，和 /或重新激活被挂起的 HARQ进程对应的数据。优选地，网络设备包括以下之一：操作管理维护平台 OAM、基站 e B、中继节点 RN、支持基站 eNB和中继节点 RN之间回程链路协议的终端。根据本发明的另一方面，提供了一种混合自动重传请求 HARQ的传输装置，包括: 传输方式确定模块，设置为当自身的中继链路子帧配置发生切换时，根据切换前后中继链路子帧配置的关系，确定上行 HARQ进程的传输方式；其中，中继链路子帧配置包括中继链路子帧对应的上行 HARQ进程数；传输模块，设置为按照传输方式确定模块确定的传输方式在切换后的上行 HARQ进程上发送 HARQ,或者按照传输方式确定模块确定的传输方式在切换后的上行 HARQ进程上接收 HARQ。优选地，上述传输方式确定模块包括：第一判断单元，设置为判断切换后的中继链路子帧配置与切换前的中继链路子帧配置的关系，其中，该关系包括包含关系、子集关系以及相同关系；第一传输方式确定单元，设置为根据上述第一判断单元判断出的关系确定上行 HARQ进程的传输方式。优选地，上述传输方式确定模块包括：第二判断单元，设置为判断第二上行 HARQ 进程数与第一上行 HARQ进程数的关系；其中，第一上行 HARQ进程数为切换前的中继链路子帧配置对应的上行 HARQ进程数，或者是切换前没有完成正确传输的上行 HARQ 进程数；第二上行 HARQ 进程数为切换后的中继链路子帧配置对应的上行 HARQ进程数；第二传输方式确定单元，设置为根据上述第二判断单元判断出的关系确定上行 HARQ进程的传输方式。优选地，上述装置包括以下之一：操作管理维护平台 OAM、基站 e B、中继节点 RN、支持基站 eNB和中继节点 RN之间回程链路协议的终端。通过本发明，根据切换前后中继链路子帧配置的关系确定上行 HARQ的传输方式，解决了子帧配置发生切换时的上行 HARQ传输顺序混乱问题，进而保证了后续 HARQ 的应用处理，提高了***的性能。附图说明此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：图 1是根据相关技术的 LTE-A***的示意图；图 2是根据相关技术的帧结构示意图；图 3是根据本发明实施例的 HARQ的传输方法流程图；图 4是根据本发明实施例的 HARQ的传输装置的结构框图。具体实施方式下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。在中继链路子帧配置发生切换的情况下，为保证 HARQ进程的正常使用，本发明实施例提供了一种 HARQ的传输方法和装置。实施例 1 图 3示出了根据本发明实施例的 HARQ的传输方法流程图，该方法包括以下步骤: 步骤 S302，当网络设备的中继链路子帧配置发生切换时，根据切换前后中继链路子帧配置的关系，确定上行 HARQ进程的传输方式；其中，该中继链路子帧配置包括中继链路子帧对应的上行 HARQ进程数；中继链路子帧配置的具体形式可以参见表 1或表 2所示，在本发明实施例中的子帧配置和子帧组配置的含义相同。步骤 S304, 该网络设备按照确定的传输方式在切换后的上行 HARQ进程上发送 HARQ, 或者该网络设备按照确定的传输方式在切换后的上行 HARQ 进程上接收 HARQo 上述网络设备根据切换前后中继链路子帧配置的关系，确定上行 HARQ进程传输方式可以包括如下两种方式：方式一：网络设备判断切换后的中继链路子帧配置与切换前的中继链路子帧配置的关系，其中，该关系包括包含关系、子集关系以及相同关系；网络设备根据判断出的关系确定上行 HARQ进程的传输方式。方式二：网络设备判断第二上行 HARQ进程数与第一上行 HARQ进程数的关系；其中，第一上行 HARQ进程数为切换前的中继链路子帧配置对应的上行 HARQ进程数，或者是切换前没有完成正确传输的上行 HARQ进程数；第二上行 HARQ进程数为切换后的中继链路子帧配置对应的上行 HARQ进程数；网络设备根据判断出的关系确定上行 HARQ进程的传输方式。对应于上述两种方式，网络设备确定出的上行 HARQ进程的传输方式可以不同，而在上述方式一中，根据切换前后中继链路子帧配置的关系的不同，也会采取不同的传输方式，例如： The number of subframes in Table 1 and Table 2 includes the number of uplink subframes (UL subframe number) and the number of downlink subframes (DL subframe number), where DL subframe number = 10 * SFN + DL subframe index; Subframe number=10*SFN+UL subframe index. The SFN indicates the system frame number (System Frame Number); the DL subframe index table does not index the 10 subframes included in one frame, and the range is (#0, #1, #2, #3, #4, # 5, #6, #7, #8, #9); UL subframe index represents the index of 10 subframes included in one frame, and its range is (#0, #1, #2, #3, #4, #5, #6, #7, #8, #9). The different combinations in Table 1 and Table 2 correspond to different uplink HARQ processes. In one subframe configuration period (for example, an integer multiple of 40 ms), different uplink HARQ processes can be executed normally in the order, but When the subframe configuration is switched, the uplink HARQ process timing may change. This prevents the uplink HARQ process from being executed in the order of the previous subframe configuration period. As a result, the uplink HARQ transmission sequence is disordered, which affects the subsequent HARQ application processing. . SUMMARY OF THE INVENTION The present invention provides a method and apparatus for transmitting a hybrid automatic repeat request to solve at least the problem of uplink HARQ transmission sequence confusion when the subframe configuration is switched. According to an aspect of the present invention, a method for transmitting a hybrid automatic repeat request HARQ is provided, including: when a relay link subframe configuration of a network device is switched, the network device configures a subframe according to a relay link before and after handover The relationship between the uplink HARQ process and the uplink HARQ process; wherein the relay link subframe configuration includes the number of uplink HARQ processes corresponding to the relay link subframe; and the network device follows the determined transmission mode on the switched uplink HARQ process. The HARQ is transmitted, or the HARQ is received on the switched uplink HARQ process according to the determined transmission mode. Preferably, the foregoing determining, by the network device, the uplink HARQ process transmission manner according to the relationship of the foregoing relay link subframe configuration before and after the handover includes: determining, by the network device, the switched relay link subframe configuration and the pre-switching relay link The relationship of the subframe configuration, where the relationship includes the inclusion relationship, the subset relationship, and the same relationship; the network device determines the transmission mode of the uplink HARQ process according to the determined relationship. Preferably, the determining, by the network device, the transmission mode of the uplink HARQ process according to the determined relationship includes: determining, by the network device, that the configured relay link subframe configuration includes the configuration of the relay link subframe before the handover, determining the uplink HARQ The transmission mode of the process is as follows: The uplink HARQ process to be sent before the handover is mapped to the specified HARQ process after the handover. The uplink HARQ process to be sent before the handover includes one of the following: all uplink HARQ processes before the handover; The uplink HARQ process that did not complete the correct transmission before. Preferably, the determining, by the network device, the transmission mode of the uplink HARQ process according to the determined relationship includes: determining, by the network device, that the switched relay link subframe configuration is a subset of the relay link subframe configuration before the handover, The transmission mode of the uplink HARQ process is determined as follows: The uplink HARQ process to be sent before the handover is mapped to the designated HARQ process after the handover. The uplink HARQ process to be sent before the handover includes one of the following: discarding or suspending the preset The number of uplink HARQ processes remaining after the uplink HARQ process before the handover; discarding or suspending the uplink HARQ process remaining after the uplink HARQ process that did not complete the correct transmission before the handover; The uplink HARQ process is not completed before the handover; the uplink HARQ process remaining after the partial HARQ process before the handover is discarded or suspended. The process ID of the uplink HARQ process before the handover is not the process ID of the uplink HARQ process after the handover. in. Preferably, the specified HARQ process is one of the following: N uplink HARQ processes starting from the first available HARQ process, where N is equal to the number of uplink HARQ processes to be sent before handover; and uplink HARQ to be sent before handover The uplink HARQ process corresponding to the uplink HARQ process ID with the same process ID. Preferably, the determining, by the network device, the transmission mode of the uplink HARQ process according to the determined relationship includes: the network device determines that the configuration of the relay link subframe after the handover is the same as the configuration of the relay link subframe before the handover, the network The device determines the transmission mode of the uplink HARQ process as one of the following: the mapping order of the uplink HARQ process remains unchanged before the handover; the uplink HARQ process that does not complete the correct transmission before the handover sequentially maps the designation starting from the first available HARQ process after the handover. The uplink HARQ process is not mapped. The uplink HARQ process that does not complete the correct transmission before the handover is mapped to the uplink HARQ process corresponding to the same uplink HARQ process ID after the handover. Preferably, the determining, by the network device, the uplink HARQ process transmission manner according to the relationship of the configuration of the relay link subframe configuration before and after the handover includes: determining, by the network device, a relationship between the number of the second uplink HARQ process and the number of the first uplink HARQ process; The number of uplink HARQ processes is the number of uplink HARQ processes corresponding to the configuration of the relay link subframe before the handover, or the number of uplink HARQ processes that are not correctly transmitted before the handover; the number of the second uplink HARQ processes is the relay link after the handover. The number of uplink HARQ processes corresponding to the subframe configuration; the network device determines the transmission mode of the uplink HARQ process according to the determined relationship. Preferably, the determining, by the network device, the transmission mode of the uplink HARQ process according to the determined relationship comprises: determining, by the network device, that the number of the second uplink HARQ process is smaller than the number of the first uplink HARQ process, determining, by the network device, that the transmission mode of the uplink HARQ process is: The uplink HARQ process to be sent before the handover is sequentially mapped to the designated HARQ process starting from the first available HARQ process after the handover; wherein the uplink HARQ process to be sent before the handover includes one of the following: discarding or suspending the pre- Set the number of uplink HARQ processes remaining after the uplink HARQ process before the handover; discard or suspend the uplink HARQ process remaining after the uplink HARQ process that does not complete the correct transmission before the handover; The uplink HARQ process that did not complete the correct transmission before the handover. Preferably, the determining, by the network device, the transmission mode of the uplink HARQ process according to the determined relationship includes: determining, by the network device, that the number of the second uplink HARQ process is greater than or equal to the number of the first uplink HARQ process, determining the transmission of the uplink HARQ process The method is as follows: The uplink HARQ process to be sent before the handover is sequentially mapped to the specified HARQ process starting from the first available HARQ process after the handover; wherein the uplink HARQ process to be sent before the handover includes one of the following: Before the handover All uplink HARQ processes; the upstream HARQ process that did not complete the correct transmission before the handover. Preferably, the network device determines, according to the relationship of the configuration of the relay link subframes before and after the handover, the transmission mode of the uplink HARQ process is: discarding or suspending all uplink HARQ processes before handover, and determining that the HARQ process after handover is used for transmitting new Data, the new data includes: data generated after the handover, and/or reactivation of data corresponding to the suspended HARQ process. Preferably, after the network device sends the HARQ on the uplink HARQ process after the handover according to the determined transmission mode, the method further includes: sending new data on the uplink HARQ process that is not mapped after the handover; the network device according to the determined transmission After receiving the HARQ on the switched uplink HARQ process, the method further includes: receiving new data on the uplink HARQ process that is not mapped after the handover; the new data includes: data generated after the handover, and/or re-activation The data corresponding to the pending HARQ process. Preferably, the network device comprises one of the following: an operation management and maintenance platform OAM, a base station e B, a relay node RN, a terminal supporting a backhaul link protocol between the base station eNB and the relay node RN. According to another aspect of the present invention, a transmission apparatus for hybrid automatic repeat request HARQ is provided, including: a transmission mode determining module configured to: when a handover configuration of a relay link subframe thereof is switched, according to a relay before and after handover The relationship between the configuration of the link subframes determines the transmission mode of the uplink HARQ process, where the subframe configuration of the relay link includes the number of uplink HARQ processes corresponding to the subframes of the relay link, and the transmission module is configured to determine according to the transmission mode determining module. The transmission mode transmits HARQ on the switched uplink HARQ process, or receives the HARQ on the switched uplink HARQ process according to the transmission mode determined by the transmission mode determining module. Preferably, the foregoing transmission mode determining module includes: a first determining unit, configured to determine a relationship between the configured configuration of the relay link subframe after the handover and the configuration of the relay link subframe before the handover, where the relationship includes an inclusion relationship, The subset relationship and the same relationship; the first transmission mode determining unit is configured to determine a transmission mode of the uplink HARQ process according to the relationship determined by the first determining unit. Preferably, the foregoing transmission mode determining module includes: a second determining unit, configured to determine a relationship between the number of the second uplink HARQ processes and the number of the first uplink HARQ processes; wherein, the number of the first uplink HARQ processes is before the switching The number of uplink HARQ processes corresponding to the configuration of the relay link subframe, or the number of uplink HARQ processes that have not been correctly transmitted before the handover; the number of the second uplink HARQ processes is the uplink HARQ process corresponding to the configuration of the relayed subframe after the handover. The second transmission mode determining unit is configured to determine a transmission mode of the uplink HARQ process according to the relationship determined by the second determining unit. Preferably, the foregoing apparatus includes one of the following: an operation management and maintenance platform OAM, a base station e B, a relay node RN, and a terminal supporting a backhaul link protocol between the base station eNB and the relay node RN. According to the present invention, the uplink HARQ transmission mode is determined according to the relationship of the subframe configuration of the relay link before and after the handover, and the problem of the uplink HARQ transmission sequence confusion when the subframe configuration is switched is solved, thereby ensuring the application processing of the subsequent HARQ, and improving the processing. System performance. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, In the drawings: FIG. 1 is a schematic diagram of an LTE-A system according to the related art; FIG. 2 is a schematic diagram of a frame structure according to the related art; FIG. 3 is a flowchart of a HARQ transmission method according to an embodiment of the present invention; A structural block diagram of a HARQ transmission apparatus according to an embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. In the case that the relay link subframe configuration is switched, in order to ensure the normal use of the HARQ process, the embodiment of the present invention provides a HARQ transmission method and apparatus. Embodiment 1 FIG. 3 is a flowchart of a method for transmitting HARQ according to an embodiment of the present invention, and the method includes the following steps: In step S302, when the configuration of the relay link subframe of the network device is switched, the transmission mode of the uplink HARQ process is determined according to the relationship of the subframe configuration of the relay link before and after the handover; wherein the subframe configuration of the relay link includes The number of the uplink HARQ processes corresponding to the subframes of the relay link. The specific configuration of the subframe configuration of the relay link is as shown in Table 1 or Table 2. The subframe configuration and the subframe group configuration have the same meaning in the embodiment of the present invention. . Step S304, the network device sends the HARQ on the switched uplink HARQ process according to the determined transmission mode, or the network device receives the HARQ on the switched uplink HARQ process according to the determined transmission mode. The relationship between the subframe configuration and the uplink HARQ process may be as follows: Mode 1: The network device determines the relationship between the configured subframe configuration of the relay link and the configuration of the relay link subframe before the handover. The relationship includes an inclusion relationship, a subset relationship, and the same relationship. The network device determines a transmission mode of the uplink HARQ process according to the determined relationship. Manner 2: The network device determines a relationship between the number of the second uplink HARQ processes and the number of the first uplink HARQ processes, where the number of the first uplink HARQ processes is the number of uplink HARQ processes corresponding to the configuration of the relay link subframe before the handover, or The number of uplink HARQ processes that are not correctly transmitted before the handover; the number of the second uplink HARQ processes is the number of uplink HARQ processes corresponding to the configuration of the relayed subframes after the handover; the network device determines the transmission mode of the uplink HARQ process according to the determined relationship. . Corresponding to the above two methods, the transmission mode of the uplink HARQ process determined by the network device may be different. In the foregoing mode 1, different transmission modes are adopted according to the relationship of the subframe configuration of the relay link before and after the handover. , E.g:

1 ) 包含关系切换后的中继链路子帧配置包含切换前的中继链路子帧配置具体是指：切换后的中继链路子帧配置对应的子帧集合中去掉任意一个或任意多个子帧集合可以构成切换前的中继链路子帧配置。网络设备判断出切换后的中继链路子帧配置包含切换前的中继链路子帧配置时，确定中继链路子帧配置切换时上行 HARQ 进程的传输方式为：切换前待发送的上行 HARQ进程依次映射在切换后的指定个 HARQ进程上，其中，切换前待发送的上行 HARQ进程包括以下之一：切换前的所有上行 HARQ进程、切换前没有完成正确传输的上行 HARQ进程。优选地，上述指定个 HARQ进程为以下之一：从第一个可用的 HARQ进程开始的 N个上行 HARQ进程，其中， N等于切换前待发送的上行 HARQ进程数；与切换前待发送的上行 HARQ 进程号相同的上行 HARQ 进程号对应的上行 HARQ进程上。 1) The configuration of the relay link subframe including the relationship switching includes the configuration of the relay link subframe before the handover, which specifically refers to: removing any one or any of the subframe sets corresponding to the configured relay link subframe configuration after the handover The plurality of subframe sets may constitute a relay link subframe configuration before handover. The network device determines that the relay link subframe configuration after the handover includes the relay link subframe configuration before the handover, and determines the transmission mode of the uplink HARQ process when the relay link subframe configuration is switched as follows: The uplink HARQ process is sequentially mapped to the designated HARQ process after the handover. The uplink HARQ process to be sent before the handover includes one of the following: all uplink HARQ processes before the handover, and uplink HARQ processes that do not complete the correct transmission before the handover. Preferably, the specified one of the HARQ processes is one of the following: N uplink HARQ processes starting from the first available HARQ process, where N is equal to the number of uplink HARQ processes to be sent before the handover; and the uplink to be sent before the handover The uplink HARQ process corresponding to the uplink HARQ process ID with the same HARQ process ID.

2) 子集关系切换后的中继链路子帧配置是切换前的中继链路子帧配置子集具体是指：切换后的中继链路子帧配置对应的子帧集合中增加任意一个或任意多个子帧集合可以构成切换前的中继链路子帧配置。网络设备判断出切换后的中继链路子帧配置是切换前的中继链路子帧配置的子集时，确定中继链路子帧配置切换时上行 HARQ进程的传输方式为：切换前待发送的上行 HARQ进程依次映射在切换后的指定个 HARQ进程上，其中，切换前待发送的上行 HARQ进程包括以下之一：丢弃或者挂起预设个数的切换前上行 HARQ进程后剩余的上行 HARQ进程；丢弃或者挂起切换前没有完成正确传输的上行 HARQ进程后剩余的上行 HARQ 进程；切换前没有完成正确传输的上行 HARQ进程；丢弃或者挂起部分切换前的上行 HARQ进程后剩余的上行 HARQ进程，该部分切换前的上行 HARQ进程的进程号不在切换后的上行 HARQ进程的进程号中。优选地，上述指定个 HARQ进程为以下之一：从第一个可用的 HARQ进程开始的 N个上行 HARQ进程，其中， N等于切换前待发送的上行 HARQ进程数；与切换前待发送的上行 HARQ 进程号相同的上行 HARQ 进程号对应的上行 HARQ进程上。 2) The relay link subframe configuration after the subset relationship switching is the relay link subframe configuration subset before the handover refers to: adding any random to the subframe set corresponding to the switched relay link subframe configuration One or any of a plurality of subframe sets may constitute a relay link subframe configuration before handover. When the network device determines that the configured relay link subframe configuration is a subset of the relay link subframe configuration before the handover, determining the transmission mode of the uplink HARQ process when the relay link subframe configuration is switched is: Before the handover The uplink HARQ process to be sent is sequentially mapped to the specified HARQ process after the handover, where the uplink HARQ process to be sent before the handover includes one of the following: discarding or suspending a preset number of remaining uplink HARQ processes before the handover Upstream HARQ process; discarding or suspending the uplink HARQ process remaining after the uplink HARQ process that did not complete the correct handover before handover; the uplink HARQ process that did not complete the correct transmission before the handover; discarding or suspending the remaining HARQ process before the partial HARQ process before the handover In the uplink HARQ process, the process ID of the uplink HARQ process before the partial handover is not in the process ID of the uplink HARQ process after the handover. Preferably, the specified one of the HARQ processes is one of the following: N uplink HARQ processes starting from the first available HARQ process, where N is equal to the number of uplink HARQ processes to be sent before the handover; The uplink HARQ process corresponding to the uplink HARQ process ID that is the same as the uplink HARQ process ID to be sent before the handover.

3 ) 相同关系即切换后的中继链路子帧配置与切换前的中继链路子帧配置相同。网络设备判断出切换后的中继链路子帧配置与切换前的中继链路子帧配置相同时，网络设备上行 HARQ进程的传输方式为以下之一：保持切换前上行 HARQ进程映射顺序不变；切换前没有完成正确传输的上行 HARQ 进程依次映射在切换后从第一个可用的 HARQ进程开始的指定个上行 HARQ进程；切换前没有完成正确传输的上行 HARQ进程依次映射在切换后相同的上行 HARQ 进程号对应的上行 HARQ进程上。对于方式二，具体可以有以下两种情况： 3) The same relationship, that is, the configuration of the relay link subframe after handover is the same as the configuration of the relay link subframe before handover. When the network device determines that the configuration of the relay link subframe after the handover is the same as the configuration of the relay link subframe before the handover, the transmission mode of the uplink HARQ process of the network device is one of the following: The mapping sequence of the uplink HARQ process before the handover is maintained. The uplink HARQ process that does not complete the correct transmission before the handover sequentially maps the specified uplink HARQ processes starting from the first available HARQ process after the handover; the uplink HARQ process that does not complete the correct transmission before the handover is mapped in the same manner after the handover. The uplink HARQ process corresponding to the uplink HARQ process number. For the second method, there are two specific situations:

1 ) 切换后上行 HARQ进程数 <切换前上行 HARQ进程数网络设备判断出第二上行 HARQ进程数小于第一上行 HARQ进程数时，确定上行 HARQ进程的传输方式为：切换前待发送的上行 HARQ进程依次映射在切换后的从第一个可用的 HARQ进程开始的指定个 HARQ进程上；其中，切换前待发送的上行 HARQ进程包括以下之一：丢弃或者挂起预设个数的切换前上行 HARQ进程后剩余的上行 HARQ进程，丢弃或者挂起切换前没有完成正确传输的上行 HARQ进程后剩余的上行 HARQ 进程；切换前没有完成正确传输的上行 HARQ进程。 1) Number of uplink HARQ processes after handover <Number of uplink HARQ processes before handover When the network device determines that the number of second uplink HARQ processes is smaller than the number of first uplink HARQ processes, the transmission mode of the uplink HARQ process is determined as follows: Uplink HARQ to be sent before handover The process is sequentially mapped to the designated HARQ process starting from the first available HARQ process after the handover; wherein the uplink HARQ process to be sent before the handover includes one of the following: discarding or suspending the preset number of pre-switching uplinks The uplink HARQ process remaining after the HARQ process, the upstream HARQ process remaining after the uplink HARQ process that did not complete the correct transmission is discarded or suspended; the uplink HARQ process that is correctly transmitted is not completed before the handover.

2) 切换后上行 HARQ进程数切换前上行 HARQ进程数网络设备判断出第二上行 HARQ进程数大于或等于第一上行 HARQ进程数时，确定中继链路子帧配置切换时上行 HARQ 进程的传输方式为：切换前待发送的上行 HARQ进程依次映射在切换后的从第一个可用的 HARQ进程开始的指定个 HARQ进程上；其中，切换前待发送的上行 HARQ进程包括以下之一：切换前的所有上行 HARQ进程; 切换前没有完成正确传输的上行 HARQ进程。另外，在具体实现本发明时，也可以采用更简单的处理，例如：网络设备根据切换前后中继链路子帧配置的关系，确定上行 HARQ进程的传输方式为：丢弃或挂起所有切换前上行 HARQ进程，确定切换后的 HARQ进程用于传输新数据，该新数据包括：切换后生成的数据，和 /或重新激活被挂起的 HARQ进程对应的数据。网络设备按照确定的传输方式在切换后的上行 HARQ进程上传输 HARQ之后，上述方法还包括：在切换后没有被映射的上行 HARQ进程上发送新数据；网络设备按照确定的传输方式在切换后的所述上行 HARQ进程上接收 HARQ之后，上述方法还包括：在切换后没有被映射的上行 HARQ进程上接收新数据；该新数据包括：切换后生成的数据，和 /或重新激活被挂起的 HARQ进程对应的数据。上述没有正确完成传输的上行 HARQ进程具体是指：在切换前子帧配置的最后一次重传还没有正确传输，或是在切换前子帧配置还没有收到上行数据对应的下行确认信息，或是到达最大重传次数后还没有正确传输。上述丢弃或者挂起上行 HARQ进程具体还包括：丢弃上行 HARQ进程是指网络设备清除待重传的上行 HARQ数据；挂起上行 HARQ进程是指网络设备暂时不进行上行 HARQ数据的重传，待重传的上行 HARQ数据仍然保留。本发明实施例中的网络设备包括以下之一：操作管理维护平台 OAM、基站 e B、中继节点 RN、支持基站 eNB和中继节点 RN之间回程链路协议的终端。本实施例提供的中继链路子帧配置切换时 HARQ的传输方法，可以很好地适用于基站到中继节点链路，没有引入信令开销，既保证了后向兼容性（兼容 LTE***），根据切换前后中继链路子帧配置的关系确定上行 HARQ的传输方式，解决了中继链路子帧配置切换时上行 HARQ如何传输的问题，进而保证了后续 HARQ的应用处理，提高了***的性能。实例 1 假设切换后子帧配置上行 HARQ进程数为 4，对应的进程号分别为 A0、 Al、 A2、2) The number of uplink HARQ processes before the number of uplink HARQ processes after the handover The network device determines that the number of the second uplink HARQ processes is greater than or equal to the number of the first uplink HARQ processes, and determines the transmission of the uplink HARQ process when the relay link subframe configuration is switched. The method is as follows: The uplink HARQ process to be sent before the handover is mapped to the designated HARQ process starting from the first available HARQ process after the handover; wherein the uplink HARQ process to be sent before the handover includes one of the following: All uplink HARQ processes before handover; the uplink HARQ process that did not complete the correct transmission before handover. In addition, when the present invention is specifically implemented, a simpler process may also be adopted. For example, the network device determines the transmission mode of the uplink HARQ process according to the relationship of the subframe configuration of the relay link before and after the handover: discarding or suspending all the handovers before The uplink HARQ process determines that the switched HARQ process is used to transmit new data, and the new data includes: data generated after the handover, and/or re-activation of data corresponding to the suspended HARQ process. After the network device transmits the HARQ on the switched uplink HARQ process according to the determined transmission mode, the method further includes: sending new data on the uplink HARQ process that is not mapped after the handover; the network device is in the determined transmission mode after the handover. After receiving the HARQ on the uplink HARQ process, the method further includes: receiving new data on the uplink HARQ process that is not mapped after the handover; the new data includes: data generated after the handover, and/or re-activation of the suspended data The data corresponding to the HARQ process. The above-mentioned uplink HARQ process that does not correctly complete the transmission specifically refers to: the last retransmission of the subframe configuration before the handover is not correctly transmitted, or the downlink acknowledgement information corresponding to the uplink data has not been received before the handover, or It is not transmitted correctly after the maximum number of retransmissions has been reached. The foregoing method for discarding or suspending the uplink HARQ process further includes:: discarding the uplink HARQ process means that the network device clears the uplink HARQ data to be retransmitted; suspending the uplink HARQ process means that the network device temporarily does not perform the retransmission of the uplink HARQ data, waiting to be The transmitted upstream HARQ data is still retained. The network device in the embodiment of the present invention includes one of the following: an operation management and maintenance platform OAM, a base station e B, a relay node RN, and a terminal supporting a backhaul link protocol between the base station eNB and the relay node RN. The method for transmitting HARQ in the relay link subframe configuration handover provided by this embodiment can be well applied to the base station to relay node link, and no signaling overhead is introduced, which ensures backward compatibility (compatible with the LTE system). The uplink HARQ transmission mode is determined according to the relationship of the subframe configuration of the relay link before and after the handover, and the problem of how the uplink HARQ is transmitted when the subframe configuration of the relay link is switched is solved, thereby ensuring the application processing of the subsequent HARQ, and improving System performance. Example 1 Assume that the number of uplink HARQ processes in the subframe after the switch is 4, and the corresponding process IDs are A0, Al, and A2.

A3 ("A"表示切换后，本质上进程号分别为 0、 1、 2、 3，只是为了叙述方便才加以区分），且对应的子帧组合信令为十进制 " 15 "或二进制 " 00001111 "，而切换前子帧配置的上行 HARQ进程数为 3，对应的进程号分别为 B0、 B l、 B2 ("B "表示切换前，本质上进程号分别为 0、 1、 2、 3，只是为了叙述方便才加以区分），且对应的子帧组合信令为十进制 " 7 "或二进制 " 00000111 "，即切换后子帧配置包含切换前子帧配置。 (实例中子帧配置和子帧组合配置含义相同，以后不再累述）。例如：此时切换后第一个可用的上行 HARQ进程号为 Al，则 B0、 B l、 B2对应的 HARQ进程分别映射在 Al、 A2、 A3对应的 HARQ进程上继续传输， AO对应的 HARQ进程可以用于传输新的数据。该例子用以说明将切换前的 HARQ进程映射在切换后的从第一个可用的上行 HARQ进程开始的 3个进程上。例如：此时切换前上行 HARQ进程为 B0、 B l，切换后第一个可用的上行 HARQ 进程号为 A2，则 B0、 B 1 对应的 HARQ进程分别映射在 A2、 A3对应的 HARQ进程上继续传输， A0、 A1对应的 HARQ进程可以用于传输新的数据。该例子用以说明将切换前的没有完成正确传输的 HARQ进程映射在从第一个可用的上行 HARQ进程开始的 2个进程上。例如： B0、 B l、 B2 对应的 HARQ进程分别映射在 A0、 Al、 A2对应的 HARQ 进程上继续传输， A3对应的 HARQ进程可以用于传输新的数据。该例子用以说明将切换前的 HARQ进程映射在切换后相同的上行 HARQ进程上。例如：此时切换前没有完成正确传输的上行 HARQ进程为 B0、 B2，则 B0、 B2 对应的 HARQ进程分别映射在 A0、 A2对应的 HARQ进程上继续传输， A1、 A3对应的 HARQ进程可以用于传输新的数据。该例子用以说明将切换前的没有完成正确传输的 HARQ进程映射在切换后相同的上行 HARQ进程上。实例 2 假设切换后子帧配置上行 HARQ进程数为 2，对应的进程号分别为 A0、 Al，且对应的子帧组合信令为十进制 " 3 "或二进制 " 00000011 "，而切换前子帧配置的上行 HARQ进程数为 3，对应的进程号分别为 B0、 B l、 B2，且对应的子帧组合信令为十进制 " 19 "或二进制 " 00010011 "，即切换后子帧配置是切换前子帧配置子集。例如：此时切换后第一个可用的上行 HARQ进程号为 AO,则 B0、B 1对应的 HARQ 进程分别映射在 A0、 A1对应的 HARQ进程上继续传输， B2对应的 HARQ进程被网络侧和 /或接收侧丢弃或者挂起。该例子用以说明丢弃或者挂起切换后没有的上行 HARQ进程号。例如：此时切换前没有完成正确传输的上行 HARQ进程为 B0、 Bl，切换后第一个可用的上行 HARQ进程号为 Al，则 B0对应的 HARQ进程分别映射在 A1对应的 HARQ进程上继续传输， B1对应的 HARQ进程被网络侧和 /或接收侧丢弃或者挂起， AO对应的 HARQ进程可以用于传输新的数据。实例 3 假设切换后子帧配置上行 HARQ进程数为 6，对应的进程号分别为 A0、 Al、 A2、 A3、 A4、 A5，且对应的子帧组合信令为十进制 "63 "或二进制 "00111111 "，而切换前子帧配置的上行 HARQ进程数为 6，对应的进程号分别为 B0、 Bl、 B2、 B3、 B4、 B5，且对应的子帧组合信令为十进制 "63"或二进制" 00111111"，即切换前后子帧配置相同。例如： B0、 Bl、 B2、 B3、 B4、 B5对应的 HARQ进程分别映射在 AO、 Al、 A2、 A3、 A4、 A5对应的 HARQ进程上继续传输。例如：此时切换前没有完成正确传输的上行 HARQ进程为 B0、 B2、 B4，则 B0、 B2、 B4对应的 HARQ进程分别映射在 AO、 A2、 A4对应的 HARQ进程上继续传输， Al、 A3、 A5对应的 HARQ进程可以用于传输新的数据。例如：此时切换前没有完成正确传输的上行 HARQ进程为 B0、 B2、 B4，切换后第一个可用的上行 HARQ进程号为 A1，则 B0、 B2、 B4对应的 HARQ进程分别映射在 Al、 A2、 A3对应的 HARQ进程上继续传输， A0、 A4、 A5对应的 HARQ进程可以用于传输新的数据。实例 4 假设当切换后子帧配置对应的上行 HARQ进程数为 5，且对应的进程号分别为 A0、 Al、 A2、 A3、 A4，切换前子帧配置对应的上行 HARQ进程数或是切换前没有完成正确传输的上行 HARQ进程数为 6，且对应的进程号分别为 B0、 Bl、 B2、 B3、 B4、 B5。例如：此时切换后第一个可用的上行 HARQ进程号为 A0，则 B0、 Bl、 B2、 B3、 B4对应的 HARQ进程分别映射在 AO、 Al、 A2、 A3、 A4对应的 HARQ进程上继续传输， B5对应的进程被网络侧和 /或接收侧丢弃或者挂起。例如：此时切换前没有完成正确传输的上行 HARQ进程为 B0、 Bl，切换后第一个可用的上行 HARQ进程号为 Al，则 B0、 B1对应的 HARQ进程分别映射在 Al、 A2对应的 HARQ进程上继续传输， A0、 A3、 A4对应的 HARQ进程可以用于传输新的数据。实例 5 假设当切换后子帧配置对应的上行 HARQ进程数为 5，且对应的进程号分别为 A0、 Al、 A2、 A3、 A4，切换前子帧配置对应的上行 HARQ进程数或是切换前没有完成正确传输的上行 HARQ进程数为 4，且对应的进程号分别为 B0、 Bl、 B2、 B3。例如：此时切换后第一个可用的上行 HARQ进程号为 A0，则 B0、 Bl、 B2、 B3 对应的 HARQ进程分别映射在 AO、 Al、 A2、 A3对应的 HARQ进程上继续传输。例如：此时切换前没有完成正确传输的上行 HARQ进程为 B2、 B3，切换后第一个可用的上行 HARQ进程号为 Al，则 B2、 B3对应的 HARQ进程分别映射在 Al、 A2对应的 HARQ进程上继续传输， A0、 A3、 A4对应的 HARQ进程可以用于传输新的数据。实施例 2 图 4示出了根据本发明实施例的 HARQ的传输装置的结构框图，该传输装置可以设置在操作管理维护平台 OAM、基站 eNB或中继节点 RN上，或者也可以设置在支持基站 eNB和中继节点 RN之间回程链路协议的终端上，该装置包括：传输方式确定模块 42，设置为当自身的中继链路子帧配置发生切换时，根据切换前后中继链路子帧配置的关系，确定上行 HARQ进程的传输方式；其中，中继链路子帧配置包括中继链路子帧对应的上行 HARQ进程数；传输模块 44，设置为按照传输方式确定模块 42确定的传输方式在切换后的上行A3 ("A" means that after switching, the process numbers are essentially 0, 1, 2, 3, respectively, just for the convenience of description. Differentiate), and the corresponding subframe combination signaling is decimal "15" or binary "00001111", and the number of uplink HARQ processes configured in the pre-switching subframe is 3, and the corresponding process numbers are B0, B1, B2 (" B " indicates that before the switchover, the process numbers are 0, 1, 2, 3, respectively, which are only distinguished for convenience of description), and the corresponding subframe combination signaling is decimal "7" or binary "00000111", that is, switching The post subframe configuration includes the pre-switch subframe configuration. (The sub-frame configuration and sub-frame combination configuration have the same meaning in the example, and will not be described later). For example, the first available uplink HARQ process number is Al, and the HARQ processes corresponding to B0, B1, and B2 are mapped to the HARQ processes corresponding to Al, A2, and A3, and the HARQ process corresponding to the AO. Can be used to transfer new data. This example is used to illustrate mapping the HARQ process before handover to the three processes starting from the first available uplink HARQ process after handover. For example, the uplink HARQ process is B0 and B1 before the switchover, and the first available uplink HARQ process ID is A2 after the switchover. The HARQ processes corresponding to B0 and B1 are mapped to the HARQ processes corresponding to A2 and A3 respectively. Transmission, A0, A1 corresponding HARQ process can be used to transmit new data. This example is used to illustrate that the HARQ process that did not complete the correct transmission before the handover is mapped to the two processes starting from the first available uplink HARQ process. For example, the HARQ processes corresponding to B0, B1, and B2 are mapped to continue to be transmitted on the HARQ processes corresponding to A0, Al, and A2, and the HARQ processes corresponding to A3 can be used to transmit new data. This example is used to illustrate that the HARQ process before handover is mapped to the same uplink HARQ process after handover. For example, if the uplink HARQ process that does not complete the correct transmission before the handover is B0 and B2, the HARQ processes corresponding to B0 and B2 are respectively mapped to the HARQ processes corresponding to A0 and A2, and the HARQ processes corresponding to A1 and A3 can be used. For transferring new data. This example is used to illustrate that the HARQ process that did not complete the correct transmission before the handover is mapped on the same uplink HARQ process after the handover. Example 2 Assume that the number of uplink HARQ processes in the subframe after handover is 2, the corresponding process numbers are A0 and Al, and the corresponding subframe combination signaling is decimal "3" or binary "00000011", and the subframe configuration before handover The number of uplink HARQ processes is 3, and the corresponding process numbers are B0, B l, and B2, respectively, and the corresponding subframe combination signaling is decimal "19" or binary "00010011", that is, the subframe configuration after switching is the pre-switching A subset of frame configurations. For example, the first available uplink HARQ process number is AO, and the HARQ processes corresponding to B0 and B1 are respectively mapped on the HARQ process corresponding to A0 and A1, and the HARQ process corresponding to B2 is connected to the network side. / or the receiving side drops or hangs. This example is used to illustrate the drop or suspend of the upstream HARQ process number that was not available after the handover. For example, the uplink HARQ process that does not complete the correct transmission before the handover is B0, Bl, and the first available uplink HARQ process ID is Al after the handover, and the HARQ processes corresponding to B0 are mapped to continue to be transmitted on the HARQ process corresponding to A1. The HARQ process corresponding to B1 is discarded or suspended by the network side and/or the receiving side, and the HARQ process corresponding to the AO can be used to transmit new data. Example 3 Assume that the number of uplink HARQ processes in the subframe after handover is 6, and the corresponding process numbers are A0, Al, A2, A3, A4, and A5, and the corresponding subframe combination signaling is decimal "63" or binary "00111111". The number of uplink HARQ processes configured in the pre-switching subframe is 6, and the corresponding process numbers are B0, Bl, B2, B3, B4, and B5, respectively, and the corresponding subframe combination signaling is decimal "63" or binary. 00111111", that is, the subframe configuration before and after switching is the same. For example, the HARQ processes corresponding to B0, Bl, B2, B3, B4, and B5 are respectively mapped and transmitted on the HARQ processes corresponding to AO, Al, A2, A3, A4, and A5. For example, if the uplink HARQ process that did not complete the correct transmission before the handover is B0, B2, and B4, the HARQ processes corresponding to B0, B2, and B4 are mapped to the HARQ processes corresponding to AO, A2, and A4, respectively. Al, A3 The HARQ process corresponding to A5 can be used to transmit new data. For example, the uplink HARQ process that does not complete the correct transmission before the handover is B0, B2, and B4. The first available uplink HARQ process ID is A1, and the HARQ processes corresponding to B0, B2, and B4 are mapped to Al. A2, A3, and the HARQ process corresponding to A3 continue to transmit, and the HARQ processes corresponding to A0, A4, and A5 can be used to transmit new data. Example 4 Assume that the number of uplink HARQ processes corresponding to the subframe configuration after the handover is 5, and the corresponding process numbers are A0, Al, A2, A3, and A4, and the number of uplink HARQ processes corresponding to the configuration of the subframe before the handover or before the handover. The number of uplink HARQ processes that have not completed the correct transmission is 6, and the corresponding process numbers are B0, Bl, B2, B3, B4, and B5. For example, the first available uplink HARQ process ID is A0, and the HARQ processes corresponding to B0, Bl, B2, B3, and B4 are mapped to the HARQ processes corresponding to AO, Al, A2, A3, and A4, respectively. Transmission, the process corresponding to B5 is discarded or suspended by the network side and/or the receiving side. For example, the uplink HARQ process that does not complete the correct transmission before the handover is B0, Bl, and the first available uplink HARQ process ID is Al after the handover, and the HARQ processes corresponding to B0 and B1 are respectively mapped to Al. The HARQ process corresponding to A2 continues to be transmitted, and the HARQ process corresponding to A0, A3, and A4 can be used to transmit new data. Example 5 Assume that the number of uplink HARQ processes corresponding to the subframe configuration after the handover is 5, and the corresponding process numbers are A0, Al, A2, A3, and A4, and the number of uplink HARQ processes corresponding to the configuration of the subframe before the handover or before the handover. The number of uplink HARQ processes that have not completed the correct transmission is 4, and the corresponding process numbers are B0, Bl, B2, and B3, respectively. For example, the first available uplink HARQ process number is A0, and the HARQ processes corresponding to B0, Bl, B2, and B3 are mapped to the HARQ processes corresponding to AO, Al, A2, and A3, respectively. For example, the uplink HARQ process that is not correctly transmitted before the handover is B2 and B3, and the first available uplink HARQ process ID is Al after the handover, and the HARQ processes corresponding to B2 and B3 are mapped to the HARQ corresponding to Al and A2 respectively. The process continues to transmit, and the HARQ processes corresponding to A0, A3, and A4 can be used to transmit new data. Embodiment 2 FIG. 4 is a structural block diagram of a transmission apparatus of a HARQ according to an embodiment of the present invention. The transmission apparatus may be disposed on an operation management and maintenance platform OAM, a base station eNB or a relay node RN, or may be disposed in a support base station. On the terminal of the backhaul link protocol between the eNB and the relay node RN, the apparatus includes: a transmission mode determining module 42 configured to: when the trunk link subframe configuration of the UE is switched, according to the relay link before and after the handover The frame configuration relationship determines the transmission mode of the uplink HARQ process. The relay link subframe configuration includes the number of uplink HARQ processes corresponding to the relay link subframe. The transmission module 44 is configured to be determined according to the transmission mode determining module 42. Transmission mode after the switch

HARQ进程上发送 HARQ, 或者按照传输方式确定模块确定的传输方式在切换后的上行 HARQ进程上接收 HARQ。上述网络设备根据切换前后中继链路子帧配置的关系，确定中继链路子帧配置切换时上行 HARQ进程传输方式可以包括如下两种方式：方式一：传输方式确定模块 42包括: 第一判断单元，设置为判断切换后的中继链路子帧配置与切换前的中继链路子帧配置的关系，其中，关系包括包含关系、子集关系以及相同关系；第一传输方式确定单元，设置为根据第一判断单元判断出的关系确定上行 HARQ 进程的传输方式。方式二：传输方式确定模块 44包括：第二判断单元，设置为判断第二上行 HARQ进程数与第一上行 HARQ进程数的关系；其中，第一上行 HARQ进程数为切换前的中继链路子帧配置对应的上行 HARQ 进程数，或者是切换前没有完成正确传输的上行 HARQ进程数；第二上行 HARQ进程数为切换后的中继链路子帧配置对应的上行 HARQ进程数；第二传输方式确定单元，设置为根据第二判断单元判断出的关系确定上行 HARQ 进程的传输方式。对应于上述两种方式，上述传输装置确定出的上行 HARQ进程的传输方式可以不同，而在上述方式一中，根据切换前后中继链路子帧配置的关系的不同，也会采取不同的传输方式，例如： The HARQ process sends HARQ, or receives the HARQ on the switched uplink HARQ process according to the transmission mode determined by the transmission mode determining module. The foregoing network device determines the uplink HARQ process transmission mode when the relay link subframe configuration is switched according to the relationship between the configuration of the relay link subframe configuration before and after the handover. The mode 1: The transmission mode determining module 42 includes: The first determining unit is configured to determine a relationship between the configured subframe configuration of the relay link and the configuration of the relay link subframe before the handover, where the relationship includes an inclusion relationship, a subset relationship, and the same relationship; The determining unit is configured to determine a transmission mode of the uplink HARQ process according to the relationship determined by the first determining unit. Manner 2: The transmission mode determining module 44 includes: a second determining unit, configured to determine a relationship between the number of the second uplink HARQ processes and the number of the first uplink HARQ processes; wherein, the number of the first uplink HARQ processes is a relay link before the handover The number of uplink HARQ processes corresponding to the subframe configuration, or the number of uplink HARQ processes that did not complete the correct transmission before the handover; the number of the second uplink HARQ processes is the number of uplink HARQ processes corresponding to the configured relay link subframe configuration; The transmission mode determining unit is configured to determine a transmission mode of the uplink HARQ process according to the relationship determined by the second determining unit. Corresponding to the above two methods, the transmission mode of the uplink HARQ process determined by the foregoing transmission device may be different, and in the foregoing mode 1, different transmissions are also adopted according to the relationship of the subframe configuration of the relay link before and after the handover. Way, for example:

1 ) 包含关系切换后的中继链路子帧配置包含切换前的中继链路子帧配置具体是指：切换后的中继链路子帧配置对应的子帧集合中去掉任意一个或任意多个子帧集合可以构成切换前的中继链路子帧配置。网络设备判断出切换后的中继链路子帧配置包含切换前的中继链路子帧配置时，确定中继链路子帧配置切换时上行 HARQ 进程的传输方式为：切换前待发送的上行 HARQ进程依次映射在切换后的指定个 HARQ进程上，其中，切换前待发送的上行 HARQ进程包括以下之一：切换前的所有上行 HARQ进程、切换前没有完成正确传输的上行 HARQ进程。优选地，上述指定个 HARQ进程为以下之一：从第一个可用的 HARQ进程开始的 N个上行 HARQ进程，其中， N等于切换前待发送的上行 HARQ进程数；与切换前待发送的上行 HARQ 进程号相同的上行 HARQ 进程号对应的上行 HARQ进程上。 1) The configuration of the relay link subframe including the relationship switching includes the configuration of the relay link subframe before the handover, which specifically refers to: removing any one or any of the subframe sets corresponding to the configured relay link subframe configuration after the handover The plurality of subframe sets may constitute a relay link subframe configuration before handover. The network device determines that the relay link subframe configuration after the handover includes the relay link subframe configuration before the handover, and determines the transmission mode of the uplink HARQ process when the relay link subframe configuration is switched as follows: The uplink HARQ process is sequentially mapped to the designated HARQ process after the handover. The uplink HARQ process to be sent before the handover includes one of the following: all uplink HARQ processes before the handover, and uplink HARQ processes that do not complete the correct transmission before the handover. Preferably, the specified one of the HARQ processes is one of the following: N uplink HARQ processes starting from the first available HARQ process, where N is equal to the number of uplink HARQ processes to be sent before the handover; The uplink HARQ process corresponding to the uplink HARQ process ID that is the same as the uplink HARQ process ID to be sent before the handover.

2) 子集关系切换后的中继链路子帧配置是切换前的中继链路子帧配置子集具体是指：切换后的中继链路子帧配置对应的子帧集合中增加任意一个或任意多个子帧集合可以构成切换前的中继链路子帧配置。网络设备判断出切换后的中继链路子帧配置是切换前的中继链路子帧配置的子集时，确定中继链路子帧配置切换时上行 HARQ进程的传输方式为：切换前待发送的上行 HARQ进程依次映射在切换后的指定个 HARQ进程上，其中，切换前待发送的上行 HARQ进程包括以下之一：丢弃或者挂起预设个数的切换前上行 HARQ进程后剩余的上行 HARQ进程；丢弃或者挂起切换前没有完成正确传输的上行 HARQ进程后剩余的上行 HARQ 进程；切换前没有完成正确传输的上行 HARQ进程；丢弃或者挂起部分切换前的上行 HARQ进程后剩余的上行 HARQ进程，该部分切换前的上行 HARQ进程的进程号不在切换后的上行 HARQ进程的进程号中。优选地，上述指定个 HARQ进程为以下之一：从第一个可用的 HARQ进程开始的 N个上行 HARQ进程，其中， N等于切换前待发送的上行 HARQ进程数；与切换前待发送的上行 HARQ 进程号相同的上行 HARQ 进程号对应的上行2) The relay link subframe configuration after the subset relationship switching is the relay link subframe configuration subset before the handover refers to: adding any random to the subframe set corresponding to the switched relay link subframe configuration One or any of a plurality of subframe sets may constitute a relay link subframe configuration before handover. When the network device determines that the configured relay link subframe configuration is a subset of the relay link subframe configuration before the handover, determining the transmission mode of the uplink HARQ process when the relay link subframe configuration is switched is: Before the handover The uplink HARQ process to be sent is sequentially mapped to the specified HARQ process after the handover, where the uplink HARQ process to be sent before the handover includes one of the following: discarding or suspending a preset number of remaining uplink HARQ processes before the handover Upstream HARQ process; discarding or suspending the uplink HARQ process remaining after the uplink HARQ process that did not complete the correct handover before handover; the uplink HARQ process that did not complete the correct transmission before the handover; discarding or suspending the remaining HARQ process before the partial HARQ process before the handover In the uplink HARQ process, the process ID of the uplink HARQ process before the partial handover is not in the process ID of the uplink HARQ process after the handover. Preferably, the specified one of the HARQ processes is one of the following: N uplink HARQ processes starting from the first available HARQ process, where N is equal to the number of uplink HARQ processes to be sent before the handover; and the uplink to be sent before the handover The uplink corresponding to the uplink HARQ process ID with the same HARQ process ID

HARQ进程上。 On the HARQ process.

3 ) 相同关系即切换后的中继链路子帧配置与切换前的中继链路子帧配置相同。网络设备判断出切换后的中继链路子帧配置与切换前的中继链路子帧配置相同时，网络设备上行 HARQ进程的传输方式为以下之一：保持切换前上行 HARQ进程映射顺序不变；切换前没有完成正确传输的上行 HARQ 进程依次映射在切换后从第一个可用的 HARQ进程开始的指定个上行 HARQ进程；切换前没有完成正确传输的上行 HARQ进程依次映射在切换后相同的上行 HARQ 进程号对应的上行 HARQ进程上。对于方式二，具体可以有以下两种情况： 3) The same relationship, that is, the configuration of the relay link subframe after handover is the same as the configuration of the relay link subframe before handover. When the network device determines that the configuration of the relay link subframe after the handover is the same as the configuration of the relay link subframe before the handover, the transmission mode of the uplink HARQ process of the network device is one of the following: The mapping sequence of the uplink HARQ process before the handover is maintained. change; The uplink HARQ process that does not complete the correct transmission before the handover sequentially maps the specified uplink HARQ processes starting from the first available HARQ process after the handover; the uplink HARQ process that does not complete the correct transmission before the handover sequentially maps the same uplink HARQ after the handover. The process number corresponds to the upstream HARQ process. For the second method, there are two specific situations:

1 ) 切换后上行 HARQ进程数 <切换前上行 HARQ进程数网络设备判断出第二上行 HARQ进程数小于第一上行 HARQ进程数时，确定上行 HARQ进程的传输方式为：切换前待发送的上行 HARQ进程依次映射在切换后的从第一个可用的 HARQ进程开始的指定个 HARQ进程上；其中，切换前待发送的上行 HARQ进程包括以下之一：丢弃或者挂起预设个数的切换前上行 HARQ进程后剩余的上行 HARQ进程，丢弃或者挂起切换前没有完成正确传输的上行 HARQ进程后剩余的上行 HARQ 进程；切换前没有完成正确传输的上行 HARQ进程。 2) 切换后上行 HARQ进程数切换前上行 HARQ进程数网络设备判断出第二上行 HARQ进程数大于或等于第一上行 HARQ进程数时，确定中继链路子帧配置切换时上行 HARQ 进程的传输方式为：切换前待发送的上行 HARQ进程依次映射在切换后的从第一个可用的 HARQ进程开始的指定个 HARQ进程上；其中，切换前待发送的上行 HARQ进程包括以下之一：切换前的所有上行 HARQ进程；切换前没有完成正确传输的上行 HARQ进程。另外，在具体实现本发明时，也可以采用更简单的处理，例如：网络设备根据切换前后中继链路子帧配置的关系，确定上行 HARQ进程的传输方式为：丢弃或挂起所有切换前上行 HARQ进程，确定切换后的 HARQ进程用于传输新数据，该新数据包括：切换后生成的数据，和 /或重新激活被挂起的 HARQ进程对应的数据。网络设备按照确定的传输方式在切换后的上行 HARQ进程上传输 HARQ之后，上述方法还包括：在切换后没有被映射的上行 HARQ进程上发送新数据；网络设备按照确定的传输方式在切换后的所述上行 HARQ进程上接收 HARQ之后，上述方法还包括：在切换后没有被映射的上行 HARQ进程上接收新数据；该新数据包括：切换后生成的数据，和 /或重新激活被挂起的 HARQ进程对应的数据。上述没有正确完成传输的上行 HARQ进程具体是指：在切换前子帧配置的最后一次重传还没有正确传输，或是在切换前子帧配置还没有收到上行数据对应的下行确认信息，或是到达最大重传次数后还没有正确传输。上述丢弃或者挂起上行 HARQ进程具体还包括：丢弃上行 HARQ进程是指网络设备清除待重传的上行 HARQ数据；挂起上行 HARQ进程是指网络设备暂时不进行上行 HARQ数据的重传，待重传的上行 HARQ数据仍然保留。本实施例提供的装置，可以很好地适用于基站到中继节点链路，没有引入信令开销，既保证了后向兼容性（兼容 LTE***），根据切换前后中继链路子帧配置的关系确定上行 HARQ的传输方式，解决了中继链路子帧配置切换时上行 HARQ如何传输的问题，进而保证了后续 HARQ的应用处理，提高了***的性能。显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。 1) Number of uplink HARQ processes after handover <Number of uplink HARQ processes before handover When the network device determines that the number of second uplink HARQ processes is smaller than the number of first uplink HARQ processes, the transmission mode of the uplink HARQ process is determined as follows: Uplink HARQ to be sent before handover The process is sequentially mapped to the designated HARQ process starting from the first available HARQ process after the handover; wherein the uplink HARQ process to be sent before the handover includes one of the following: discarding or suspending the preset number of pre-switching uplinks The uplink HARQ process remaining after the HARQ process, the upstream HARQ process remaining after the uplink HARQ process that did not complete the correct transmission is discarded or suspended; the uplink HARQ process that is correctly transmitted is not completed before the handover. 2) The number of uplink HARQ processes before the number of uplink HARQ processes after the handover The network device determines that the number of the second uplink HARQ processes is greater than or equal to the number of the first uplink HARQ processes, and determines the transmission of the uplink HARQ process when the relay link subframe configuration is switched. The method is as follows: The uplink HARQ process to be sent before the handover is sequentially mapped to the specified HARQ process starting from the first available HARQ process after the handover; wherein the uplink HARQ process to be sent before the handover includes one of the following: Before the handover All uplink HARQ processes; the upstream HARQ process that did not complete the correct transmission before the handover. In addition, when the present invention is specifically implemented, a simpler process may also be adopted. For example, the network device determines the transmission mode of the uplink HARQ process according to the relationship of the subframe configuration of the relay link before and after the handover: discarding or suspending all the handovers before The uplink HARQ process determines that the switched HARQ process is used to transmit new data, and the new data includes: data generated after the handover, and/or re-activation of data corresponding to the suspended HARQ process. After the network device transmits the HARQ on the switched uplink HARQ process according to the determined transmission mode, the method further includes: sending new data on the uplink HARQ process that is not mapped after the handover; the network device is in the determined transmission mode after the handover. After receiving the HARQ on the uplink HARQ process, the method further includes: receiving new data on the uplink HARQ process that is not mapped after the handover; the new data includes: data generated after the handover, and/or re-activation of the suspended data The data corresponding to the HARQ process. The above-mentioned uplink HARQ process that does not correctly complete the transmission specifically refers to: the last retransmission of the subframe configuration before the handover is not correctly transmitted, or the downlink acknowledgement information corresponding to the uplink data has not been received before the handover, or It is not transmitted correctly after the maximum number of retransmissions has been reached. The foregoing method for discarding or suspending the uplink HARQ process further includes:: discarding the uplink HARQ process means that the network device clears the uplink HARQ data to be retransmitted; suspending the uplink HARQ process means that the network device temporarily does not perform the retransmission of the uplink HARQ data, waiting to be The transmitted upstream HARQ data is still retained. The device provided in this embodiment can be well applied to the link from the base station to the relay node, and no signaling overhead is introduced, which ensures backward compatibility (compatible with the LTE system), according to the subframe configuration of the relay link before and after the handover. The relationship determines the uplink HARQ transmission mode, and solves the problem of how the uplink HARQ is transmitted when the relay link subframe configuration is switched, thereby ensuring the subsequent HARQ application processing and improving the system performance. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

权利要求书 Claim

1. 一种混合自动重传请求 HARQ的传输方法，包括： A hybrid automatic repeat request HARQ transmission method, including:

当网络设备的中继链路子帧配置发生切换时，所述网络设备根据切换前后所述中继链路子帧配置的关系，确定上行 HARQ进程的传输方式；其中，所述中继链路子帧配置包括所述中继链路子帧对应的上行 HARQ进程数； Determining, by the network device, a transmission mode of an uplink HARQ process according to a relationship of a configuration of the relay link subframe before and after the handover, where the relay link subframe configuration of the network device is switched; The subframe configuration includes the number of uplink HARQ processes corresponding to the relay link subframe;

所述网络设备按照确定的所述传输方式在切换后的所述上行 HARQ 进程上发送 HARQ,或是按照确定的所述传输方式在切换后的所述上行 HARQ进程上接收 HARQ。 And the network device sends the HARQ on the uplink HARQ process after the handover according to the determined transmission manner, or receives the HARQ on the uplink HARQ process after the handover according to the determined transmission manner.

2. 根据权利要求 1所述的方法，其中，所述网络设备根据切换前后所述中继链路子帧配置的关系，确定上行 HARQ进程传输方式包括： The method according to claim 1, wherein the determining, by the network device, the uplink HARQ process transmission manner according to the relationship of the configuration of the relay link subframe before and after the handover includes:

所述网络设备判断切换后的所述中继链路子帧配置与切换前的所述中继链路子帧配置的关系，其中，所述关系包括包含关系、子集关系以及相同关系；所述网络设备根据判断出的所述关系确定上行 HARQ进程的传输方式。 The network device determines a relationship between the configured configuration of the relay link subframe after the handover and the configuration of the relay link subframe before the handover, where the relationship includes an inclusion relationship, a subset relationship, and an identical relationship; The network device determines the transmission mode of the uplink HARQ process according to the determined relationship.

3. 根据权利要求 2所述的方法，其中，所述网络设备根据判断出的关系确定上行 HARQ进程的传输方式包括： The method according to claim 2, wherein the determining, by the network device, the transmission mode of the uplink HARQ process according to the determined relationship includes:

所述网络设备判断出切换后的所述中继链路子帧配置包含切换前的所述中继链路子帧配置时，确定上行 HARQ进程的传输方式为：切换前待发送的上行 HARQ进程依次映射在切换后的指定个 HARQ进程上；其中，所述切换前待发送的上行 HARQ进程包括以下之一： When the network device determines that the configuration of the relay link subframe after the handover includes the configuration of the relay link subframe before the handover, the transmission mode of the uplink HARQ process is determined as follows: the uplink HARQ process to be sent before the handover And mapping the uplink HARQ process to be sent before the handover includes one of the following:

切换前的所有上行 HARQ进程； All uplink HARQ processes before handover;

切换前没有完成正确传输的上行 HARQ进程。 The uplink HARQ process that did not complete the correct transmission before the handover.

4. 根据权利要求 2所述的方法，其中，所述网络设备根据判断出的关系确定上行 HARQ进程的传输方式包括： The method according to claim 2, wherein the determining, by the network device, the transmission mode of the uplink HARQ process according to the determined relationship includes:

所述网络设备判断出切换后的所述中继链路子帧配置是切换前的所述中继链路子帧配置的子集时，确定上行 HARQ进程的传输方式为：切换前待发送的上行 HARQ进程依次映射在切换后的指定个 HARQ进程上；其中，所述切换前待发送的上行 HARQ进程包括以下之一： When the network device determines that the relay link subframe configuration after the handover is a subset of the relay link subframe configuration before the handover, determining that the uplink HARQ process is transmitted in the following manner: The uplink HARQ process is sequentially mapped to the designated HARQ process after the handover. The uplink HARQ process to be sent before the handover includes one of the following:

丢弃或者挂起预设个数的切换前上行 HARQ进程后剩余的上行 HARQ进程; Drop or suspend the preset number of uplink HARQs after the upstream HARQ process before handover. Cheng

丢弃或者挂起切换前没有完成正确传输的上行 HARQ 进程后剩余的上行 HARQ进程； Drop or suspend the uplink HARQ process remaining after the uplink HARQ process that did not complete the correct transmission before the handover;

切换前没有完成正确传输的上行 HARQ进程； The uplink HARQ process that did not complete the correct transmission before the handover;

丢弃或者挂起部分切换前的上行 HARQ进程后剩余的上行 HARQ进程，所述部分切换前的上行 HARQ进程的进程号不在切换后的上行 HARQ进程的进程号中。 The process of the uplink HARQ process remaining after the partial HARQ process is discarded or suspended. The process ID of the uplink HARQ process before the partial handover is not in the process ID of the uplink HARQ process after the handover.

5. 根据权利要求 3或 4所述的方法，其中，所述指定个 HARQ进程为以下之一：从第一个可用的 HARQ进程开始的 N个上行 HARQ进程，其中， N等于所述切换前待发送的上行 HARQ进程数； The method according to claim 3 or 4, wherein the specified HARQ process is one of: N uplink HARQ processes starting from a first available HARQ process, where N is equal to the pre-switching Number of uplink HARQ processes to be sent;

与所述切换前待发送的上行 HARQ进程号相同的上行 HARQ进程号对应的上行 HARQ进程上。 The uplink HARQ process corresponding to the uplink HARQ process ID that is the same as the uplink HARQ process ID to be sent before the handover.

6. 根据权利要求 2所述的方法，其中，所述网络设备根据判断出的关系确定上行 HARQ进程的传输方式包括： The method according to claim 2, wherein the determining, by the network device, the transmission mode of the uplink HARQ process according to the determined relationship includes:

所述网络设备判断出切换后的所述中继链路子帧配置与切换前的所述中继链路子帧配置相同时，所述网络设备确定上行 HARQ进程的传输方式为以下之保持切换前上行 HARQ进程映射顺序不变； When the network device determines that the configuration of the relay link subframe after the handover is the same as the configuration of the relay link subframe before the handover, the network device determines that the transmission mode of the uplink HARQ process is the following hold handover. The mapping order of the previous uplink HARQ process is unchanged;

切换前没有完成正确传输的上行 HARQ 进程依次映射在切换后从第一个可用的 HARQ进程开始的指定个上行 HARQ进程； The uplink HARQ process that does not complete the correct transmission before the handover sequentially maps the specified uplink HARQ processes starting from the first available HARQ process after the handover;

切换前没有完成正确传输的上行 HARQ 进程依次映射在切换后相同的上行 HARQ进程号对应的上行 HARQ进程上。 The uplink HARQ process that does not complete the correct transmission before the handover is mapped to the uplink HARQ process corresponding to the same uplink HARQ process number after the handover.

7. 根据权利要求 1所述的方法，其中，所述网络设备根据切换前后所述中继链路子帧配置的关系，确定上行 HARQ进程传输方式包括： The method according to claim 1, wherein the determining, by the network device, the uplink HARQ process transmission manner according to the relationship of the configuration of the relay link subframe before and after the handover includes:

所述网络设备判断第二上行 HARQ进程数与第一上行 HARQ进程数的关系；其中，第一上行 HARQ进程数为切换前的所述中继链路子帧配置对应的上行 HARQ进程数，或者是切换前没有完成正确传输的上行 HARQ进程数；第二上行 HARQ进程数为切换后的所述中继链路子帧配置对应的上行 HARQ进程数；所述网络设备根据判断出的所述关系确定上行 HARQ进程的传输方式。 The network device determines a relationship between the number of the second uplink HARQ processes and the number of the first uplink HARQ processes, where the number of the first uplink HARQ processes is the number of uplink HARQ processes corresponding to the configuration of the relay link subframe before the handover, or The number of uplink HARQ processes that are not correctly transmitted before the handover; the number of the second uplink HARQ processes is the number of uplink HARQ processes corresponding to the configuration of the relay link subframe after the handover; The network device determines a transmission mode of the uplink HARQ process according to the determined relationship.

8. 根据权利要求 7所述的方法，其中，所述网络设备根据判断出的所述关系确定上行 HARQ进程的传输方式包括： The method according to claim 7, wherein the determining, by the network device, the transmission manner of the uplink HARQ process according to the determined relationship includes:

所述网络设备判断出所述第二上行 HARQ 进程数小于所述第一上行 HARQ进程数时，确定上行 HARQ进程的传输方式为：切换前待发送的上行 HARQ 进程依次映射在切换后的从第一个可用的 HARQ 进程开始的指定个 HARQ进程上；其中，所述切换前待发送的上行 HARQ进程包括以下之一：丢弃或者挂起预设个数的切换前上行 HARQ进程后剩余的上行 HARQ进程； When the network device determines that the number of the second uplink HARQ processes is smaller than the number of the first uplink HARQ processes, determining that the uplink HARQ process is transmitted in the following manner: The uplink HARQ process to be sent before the handover is sequentially mapped in the second An uplink HARQ process to be sent before the handover includes one of the following: dropping or suspending a preset number of uplink HARQs remaining after the pre-switching uplink HARQ process Process

9. 根据权利要求 7所述的方法，其中，所述网络设备根据判断出的所述关系确定上行 HARQ进程的传输方式包括： The method according to claim 7, wherein the determining, by the network device, the transmission manner of the uplink HARQ process according to the determined relationship includes:

所述网络设备判断出所述第二上行 HARQ 进程数大于或等于所述第一上行 HARQ进程数时，确定上行 HARQ进程的传输方式为：切换前待发送的上行 HARQ进程依次映射在切换后的从第一个可用的 HARQ进程开始的指定个 HARQ进程上；其中，所述切换前待发送的上行 HARQ进程包括以下之一：切换前的所有上行 HARQ进程； When the network device determines that the number of the second uplink HARQ processes is greater than or equal to the number of the first uplink HARQ processes, determining the transmission mode of the uplink HARQ process is as follows: The uplink HARQ process to be sent before the handover is sequentially mapped after the handover. The uplink HARQ process to be sent before the handover includes one of the following: all uplink HARQ processes before the handover;

10. 根据权利要求 1所述的方法，其中， 10. The method according to claim 1, wherein

所述网络设备根据切换前后所述中继链路子帧配置的关系，确定上行 Determining, by the network device, the uplink according to the relationship of the configuration of the relay link subframe before and after the handover

HARQ进程的传输方式为：丢弃或挂起所有切换前上行 HARQ进程，确定切换后的 HARQ进程用于传输新数据，所述新数据包括：所述切换后生成的数据，和 /或重新激活被挂起的 HARQ进程对应的数据。 The transmission mode of the HARQ process is: discarding or suspending all the uplink HARQ processes before the handover, and determining that the HARQ process after the handover is used to transmit new data, where the new data includes: the data generated after the handover, and/or the reactivation is The data corresponding to the pending HARQ process.

11. 根据权利要求 1-4、 6-10中任一项所述的方法，其中， The method according to any one of claims 1-4, 6-10, wherein

所述网络设备按照确定的所述传输方式在切换后的所述上行 HARQ 进程上发送 HARQ之后，所述方法还包括：在切换后没有被映射的上行 HARQ进程上发送新数据；所述网络设备按照确定的所述传输方式在切换后的所述上行 HARQ 进程上接收 HARQ之后，所述方法还包括：在切换后没有被映射的上行 HARQ进程上接收新数据； After the network device sends the HARQ on the uplink HARQ process after the handover according to the determined transmission mode, the method further includes: sending new data on the uplink HARQ process that is not mapped after the handover; After the network device receives the HARQ on the uplink HARQ process after the handover according to the determined transmission mode, the method further includes: receiving new data on the uplink HARQ process that is not mapped after the handover;

所述新数据包括：所述切换后生成的数据，和 /或重新激活被挂起的 HARQ 进程对应的数据。 The new data includes: data generated after the handover, and/or data corresponding to reactivation of the suspended HARQ process.

12. 根据权利要求 1-4、 6-10 中任一项所述的方法，其中，所述网络设备包括以下之一：操作管理维护平台 OAM、基站 e B、中继节点 RN、支持基站 eNB和中继节点 RN之间回程链路协议的终端。 The method according to any one of claims 1-4, 6-10, wherein the network device comprises one of: an operation management and maintenance platform OAM, a base station e B, a relay node RN, a support base station eNB A terminal of a backhaul link protocol with the relay node RN.

13. 一种混合自动重传请求 HARQ的传输装置，包括：传输方式确定模块，设置为当自身的中继链路子帧配置发生切换时，根据切换前后所述中继链路子帧配置的关系，确定上行 HARQ进程的传输方式；其中，所述中继链路子帧配置包括所述中继链路子帧对应的上行 HARQ进程数；传输模块，设置为按照所述传输方式确定模块确定的所述传输方式在切换后的所述上行 HARQ进程上发送 HARQ,或者按照所述传输方式确定模块确定的所述传输方式在切换后的所述上行 HARQ进程上接收 HARQ。 A transmission apparatus for hybrid automatic repeat request HARQ, comprising: a transmission mode determining module, configured to configure, according to the relay link subframe before and after the handover, when the configuration of the relay link subframe is switched a relationship, the transmission mode of the uplink HARQ process is determined, where the relay link subframe configuration includes the number of uplink HARQ processes corresponding to the relay link subframe, and the transmission module is configured to determine according to the transmission mode determining module And transmitting, by the transmission mode, the HARQ on the uplink HARQ process after the handover, or receiving the HARQ on the uplink HARQ process after the handover according to the transmission mode determined by the transmission mode determining module.

14. 根据权利要求 13所述的装置，其中，所述传输方式确定模块包括：第一判断单元，设置为判断切换后的所述中继链路子帧配置与切换前的所述中继链路子帧配置的关系，其中，所述关系包括包含关系、子集关系以及相同关系； The device according to claim 13, wherein the transmission mode determining module comprises: a first determining unit, configured to determine the relay link subframe configuration after switching and the relay chain before switching Relationship between path subframe configurations, where the relationship includes an inclusion relationship, a subset relationship, and the same relationship;

第一传输方式确定单元，设置为根据所述第一判断单元判断出的所述关系确定上行 HARQ进程的传输方式。 The first transmission mode determining unit is configured to determine a transmission mode of the uplink HARQ process according to the relationship determined by the first determining unit.

15. 根据权利要求 13所述的装置，其中，所述传输方式确定模块包括： The device according to claim 13, wherein the transmission mode determining module comprises:

第二判断单元，设置为判断第二上行 HARQ进程数与第一上行 HARQ进程数的关系；其中，第一上行 HARQ进程数为切换前的所述中继链路子帧配置对应的上行 HARQ进程数，或者是切换前没有完成正确传输的上行 HARQ进程数；第二上行 HARQ 进程数为切换后的所述中继链路子帧配置对应的上行 HARQ进程数； The second determining unit is configured to determine a relationship between the number of the second uplink HARQ processes and the number of the first uplink HARQ processes, where the first uplink HARQ process number is an uplink HARQ process corresponding to the configuration of the relay link subframe before the handover The number of uplink HARQ processes that are not correctly transmitted before the handover; the number of the second uplink HARQ processes is the number of uplink HARQ processes corresponding to the configuration of the relay link subframe after the handover;

第二传输方式确定单元，设置为根据所述第二判断单元判断出的所述关系确定上行 HARQ进程的传输方式。根据权利要求 13-15任一项所述的装置，其中，所述装置包括以下之一：操作管理维护平台 0AM、基站 e B、中继节点 RN、支持基站 eNB和中继节点 RN 之间回程链路协议的终端。 The second transmission mode determining unit is configured to determine a transmission mode of the uplink HARQ process according to the relationship determined by the second determining unit. The apparatus according to any one of claims 13-15, wherein the apparatus comprises one of: an operation management maintenance platform 0AM, a base station e B, a relay node RN, a support base station eNB, and a relay node RN The terminal of the link protocol.