CN105530077A - Retransmission packet retransmitting method for base stations with dual-connectivity for terminal, base station and terminal - Google Patents

Retransmission packet retransmitting method for base stations with dual-connectivity for terminal, base station and terminal Download PDF

Info

Publication number
CN105530077A
CN105530077A CN201410566620.1A CN201410566620A CN105530077A CN 105530077 A CN105530077 A CN 105530077A CN 201410566620 A CN201410566620 A CN 201410566620A CN 105530077 A CN105530077 A CN 105530077A
Authority
CN
China
Prior art keywords
base station
data
terminal
rlc
pdu
Prior art date
Application number
CN201410566620.1A
Other languages
Chinese (zh)
Inventor
江小威
Original Assignee
中国移动通信集团公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中国移动通信集团公司 filed Critical 中国移动通信集团公司
Priority to CN201410566620.1A priority Critical patent/CN105530077A/en
Publication of CN105530077A publication Critical patent/CN105530077A/en

Links

Abstract

The invention provides a retransmission packet retransmitting method for base stations with dual-connectivity for a terminal, a base station and a terminal. The method includes: a) when data of the protocol data unit (PDU) of a downlink radio link control (RLC) protocol sublayer needs to be retransmitted during a process that a first base station transmits downlink data to a terminal, obtaining the signal quality of a first service cell connected with the terminal in the first base station and the signal quality of a second service cell connected to the terminal in a second base station,; and b) selecting the base station of the service cell with better signal quality (between the first service cell and the second service cell) to retransmit the PDU data. The method provided by the invention can select the other link to retransmit the PUD data to fully utilize the links and space diversity of dual-connectivity when the signal quality of the transmission channel becomes worse because of the terminal mobility. In this way, better transmission quality of the acknowledged mode (AM) service flow is ensured, the packet loss rate of the AM service flow is reduced, and better AM service performance can be obtained at cell borders.

Description

一种与终端双连接的基站的重传包重传的方法、基站与终上山 A method in retransmission packet retransmission double base terminal connected to the base station and terminating mountain

Ji而 Ji and

技术领域 FIELD

[0001] 本发明涉及无线通讯技术领域,尤其涉及一种与终端双连接的基站的重传包重传的方法、基站与终端。 [0001] The present invention relates to wireless communication technologies, and in particular relates to a method and base station for a terminal connected to the double retransmission packet retransmission, the base station and the terminal.

背景技术 Background technique

[0002] 为了有效的提高覆盖和增大系统的通信容量,目前第三代合作伙伴计划(3rdGenerat1n Partnership Project, 3GPP)标准组织正在研究在长期演进的演进(LongTerm Evolut1n-Advanced, LTE-A)系统中部署源基站服务小区SeNB serving cell 的相关技术标准。 [0002] In order to effectively improve coverage and increase the communication capacity of the system, currently third Generation Partnership Project (3rdGenerat1n Partnership Project, 3GPP) standards organization working on (LongTerm Evolut1n-Advanced, LTE-A) system in the evolution of the long-term evolution the deployment source cell SeNB serving cell base station serving the relevant technical standards. 所谓SeNB serving cell即在原有的宏小区的覆盖范围内,根据不同的地形条件和客户需求,在特定的区域部署一个或多个小基站簇,通过近距离的通信和无线资源复用来增加系统容量。 I.e., so-called SeNB serving cell in the coverage of the existing macro cell, depending on the terrain conditions and customer requirements, one or more small base stations deployment in a particular cluster region, and by short-range radio communication system for increasing the resource reuse capacity. SeNB serving cell基站与宏基站之间使用非理想的backhaul链路连接,使得二者之间具有一定的协作通信能力。 Using non-ideal backhaul link connection between the SeNB serving cell base station and a macro base station, so as to have a certain ability to cooperative communication therebetween.

[0003] 当用户同时处于宏小区和SeNB serving cell的覆盖范围之内的时候,可以同时保持两个基站的无线资源控制协议(Rad1 Resource Control,RRC)在线状态,即宏小区和微小区可以同时为该用户服务,用户保持宏小区与微小区两条物理通信链路。 [0003] When the user within the coverage area of ​​a macro cell at the same time and in the SeNB serving cell can be maintained while the radio resource control protocol two base stations (Rad1 Resource Control, RRC) online status, i.e. a micro cell and a macro cell may be simultaneously service for the user, the user holds the macro cell and micro cell two physical communications link. 这样可以有效的增加用户的上下行通信速率、增大系统的通信容量。 This can effectively increase the uplink and downlink communication rate, increase the communication capacity of the system.

[0004] 在SeNB serving cell双连接应用时,一个宏基站服务小区MeNB serving cell的分组数据汇聚协议rocp子层对每个无线业务承载(DRB)的网络之间互联的协议(IP)分组按照从核心网到达的顺序和负载分担策略提交给MeNB serving cell和SeNB servingcell对应的无线链路控制协议(Rad1 Link Control, RLC)的逻辑信道并进行传输,以获得满意的双连接吞吐量。 [0004] When application of the double connector SeNB serving cell, the macro base station serving a cell sub rocp packet data convergence protocol layer protocol MeNB serving cell for interconnection between each radio service bearer network (the DRB) of (IP) packets in accordance with the logical order of arrival and core network load balancing policy submitted to radio link control protocol SeNB servingcell MeNB serving cell and the corresponding (Rad1 link control, RLC) and transmitted, in order to obtain a satisfactory dual-connection throughput.

[0005]目前,在 SeNB serving cell 双连接应用时,长期演进(Long Term Evolut1n,LTE)MeNB serving cell的I3DCP子层将需要无线链路控制协议确认模式RLC AM传输服务的HXP帧,根据两个链路的质量和负载情况,通过一定的策略选择通过MeNB serving cell或者SeNB serving cell的RLC子层进行AM传输。 [0005] Currently, when the double connector SeNB serving cell applications, long term evolution (Long Term Evolut1n, LTE) I3DCP sublayer MeNB serving cell would require HXP frame acknowledged mode radio link control protocol RLC AM transmission service, in accordance with two link quality and load, by a certain selection policy transmitted by AM RLC sublayer MeNB serving cell or the SeNB serving cell.

[0006] 然而,SeNB serving cell双连接情况下,针对AM业务传输,现有技术方案存在以下技术问题: [0006] However, the dual connection, service AM transmissions, the prior art solutions exist SeNB serving cell following technical problems:

[0007] 当前选择一个小区cell的RLC实体传输时,可能该cell与终端UE的链路由于UE的移动性,有可能会进入一个深阴影衰落区域或者进入小区边界而突然变差,导致该AM业务的RLC协议数据单元PDU即使多次重传,也不能正确的传递到接收方对应的RLC实体并且进行RLC AM的复位操作的情况存在较大发生概率。 [0007] When selecting a current cell RLC entity transmitting a cell, the cell may be a link with the terminal UE due to movement of the UE, it may enter a deep shadow fading enters a cell boundary area or a sudden deterioration, resulting in the AM there is a large probability of occurrence of an RLC service data unit (PDU) protocol even multiple retransmissions can not be correctly transmitted to the receiving side RLC entity corresponding to the RLC AM and for the case where a reset operation.

发明内容 SUMMARY

[0008] 为了克服上述现有技术中存在问题,本发明提供了一种与终端双连接的基站的重传包重传的方法、基站与终端,能够充分利用双连接的链路和空间分集,改善由于UE移动性造成的信道突然变差时的AM业务传输性能。 [0008] In order to overcome the above-described prior art problems, the present invention provides a method for a retransmission packet to the base station connected to the terminal double retransmission, the base station and the terminal, to make full use of space and the double connector link diversity, AM improve service transmission performance when UE mobility due to the channel due to a sudden deterioration.

[0009] 为了解决上述技术问题,本发明采用如下技术方案: [0009] To solve the above problems, the present invention adopts the following technical solution:

[0010] 依据本发明的一个方面,提供了一种与终端双连接的基站的重传包重传的方法,所述方法包括: [0010] According to one aspect of the invention there is provided a method for a retransmission packet to the base station connected to the terminal double retransmission, the method comprising:

[0011] 第一基站在向终端发送下行数据的过程中,当下行无线链路控制协议子层RLC的协议数据单元rou的数据需要重传时,获取第一基站中与所述终端建立连接的第一服务小区的信号质量以及第二基站中与所述终端建立连接的第二服务小区的信号质量; [0011] In the process of the first base station transmits downlink data to the terminal, the protocol data downlink radio link control RLC sublayer protocol data unit needs to be retransmitted rou, obtaining a first base station to establish a connection with the terminal signal quality of a first cell and a second serving base station to establish a second serving cell signal quality of a connection with the terminal;

[0012] 选择所述第一服务小区和第二服务的小区信号质量中,信号质量较好的服务小区所在的基站,重传所述PDU的数据。 [0012] cell selection signal quality of the first service and the second service cell, the base station serving cell signal quality is preferably located, retransmission of the data PDU.

[0013] 可选地,所述选择所述第一服务小区和第二服务的小区信号质量中,信号质量较好的服务小区所在的基站,重传所述PDU的数据的步骤包括: Step [0013] Alternatively, the selection of the first serving cell and a second cell signal quality in service, the base station serving cell signal quality is preferably located, retransmission of the data PDU comprises:

[0014] 第一基站的分组数据汇聚协议rocp子层获取所述第一基站上需要重传的RLCPDU包含的一个或者多个rocp帧的序号或者获取RLC PDU的数据; Packet Data [0014] a first base station convergence protocol sublayer rocp acquired number of frames of one or more rocp the first base station to be retransmitted or RLCPDU comprising obtaining the RLC PDU data;

[0015] 所述第一基站的rocp子层将获取的RLC PDU包含的一个或者多个HXP帧的序号通过X2接口发送给第二基站的RLC子层进行实体发送,或者将获取的RLC PDU的数据封装为rocp PDU类型,添加逻辑信号道,并发送给第二基站的服务小区进行发送。 HXP a number of frames or a plurality of [0015] the sub-layer of the first base station rocp acquired by sending RLC PDU containing the X2 interface to the RLC sublayer of the second base station is transmitting entity, or the RLC PDU acquired rocp PDU packet encapsulation type, add logic channel signal, and sends the serving base station transmits a second cell.

[0016] 可选地,所述重传所述rou的数据的步骤还包括: Step [0016] Alternatively, the retransmission of the data rou further comprising:

[0017] 所述终端接收到所述第二基站的RLC子层实体发送的一个或者多个rocp帧的序号后,根据rocp帧的序号字段对其进行整序及冗余删除,提交给tcp/ip协议栈;或者所述终端收到所述第二基站的服务小区发送的rocp PDU后,进行解封,根据添加的所述逻辑信号道,找到RLC实体并重新组装,通过所述RLC实体提取出重新组装的rocp PDU递交给PDCP子层。 [0017] After the terminal ID of the entity sending a RLC sub-layer or a plurality of received frames rocp the second base station, in accordance with the frame sequence number field rocp be redundant and deleting the entire sequence, submitted to tcp / ip protocol stack; or after the terminal receives the serving cell rocp PDU transmitted from the second base station, unseal, in accordance with the logic of the signal path to add, to find and reassemble the RLC entity, the RLC entity by extracting the reassembly rocp PDU submitted to the PDCP sublayer.

[0018] 可选地,所述第一基站为宏基站MeNB,所述第二基站为源基站SeNB ;或者所述第一基站为源基站SeNB,所述第二基站为宏基站MeNB。 [0018] Alternatively, the first base station is a macro base station the MeNB, the second base station is the SeNB source base station; or the first base station is the SeNB source base station, the second base station is a macro base station MeNB.

[0019] 依据本发明的另一个方面,还提供了一种与终端双连接的基站的重传包重传的方法,所述方法包括: [0019] According to another aspect of the present invention, there is provided a method for a retransmission packet to the base station connected to the terminal double retransmission, the method comprising:

[0020] 终端在向第一基站发送上行数据的过程中,当上行无线链路控制协议子层RLC的协议数据单元rou的数据需要重传时,获取第一基站中与所述终端建立连接的第一服务小区的信号质量以及第二基站中与所述终端建立连接的第二服务小区的信号质量; [0020] In the process of terminal transmits uplink data to the first base station, when the radio link control protocol RLC sublayer protocol data unit rou data needs to be retransmitted, obtaining a first base station to establish a connection with the terminal signal quality of a first cell and a second serving base station to establish a second serving cell signal quality of a connection with the terminal;

[0021] 选择所述第一服务小区和第二服务的小区信号质量中,信号质量较好的服务小区所在的基站,重传所述PDU的数据。 [0021] selecting said first cell signal quality of the serving cell and a second service, the base station serving cell signal quality is preferably located, retransmission of the data PDU.

[0022] 可选地,所述选择所述第一服务小区和第二服务的小区信号质量中,信号质量较好的服务小区所在的基站,重传所述PDU的数据的步骤具体包括: Step [0022] Alternatively, the selection of the first serving cell and a second cell signal quality in service, the base station serving cell signal quality is preferably located, retransmission of the data PDU comprises:

[0023] 终端的分组数据汇聚协议rocp子层获取终端上行链路中第一基站需要重传的RLC PDU包含的一个或者多个rocp帧的序号或者获取RLC PDU的数据; Rocp packet data convergence protocol sublayer [0023] terminal, acquiring the terminal number rocp upstream link the first base station frame need to be retransmitted RLC PDU contains one or more or the RLC PDU data acquired;

[0024] 终端的rocp子层将获取的RLC PDU包含的一个或者多个HXP帧的序号发送给第二基站的RLC子层进行实体发送,或者终端的rocp子层将获取的RLC PDU的数据封装为PDCP PDU类型,添加逻辑信号道,并发送给第二基站的RLC子层进行实体发送。 [0024] Reference HXP transmitting one or more frames of rocp sublayer of the terminal of the acquired RLC PDU to the RLC sublayer comprising a second base station is transmitting entity, or rocp sublayer terminal RLC PDU acquired data encapsulation PDCP PDU type is added to the logical channel signal, and sends the RLC sublayer entity sends the second base station is performed.

[0025] 可选地,所述第一基站为宏基站MeNB,所述第二基站为源基站SeNB ;或者所述第一基站为源基站SeNB,所述第二基站为宏基站MeNB。 [0025] Alternatively, the first base station is a macro base station the MeNB, the second base station is the SeNB source base station; or the first base station is the SeNB source base station, the second base station is a macro base station MeNB.

[0026] 可选地,所述重传所述rou的数据的步骤还包括: Step [0026] Alternatively, the retransmission of the data rou further comprising:

[0027] 所述第一基站的rocp子层接收到所述第二基站的RLC子层实体发送的一个或者多个rocp帧的序号后,根据rocp帧的序号字段对其进行整序及冗余删除,提交给tcp/ip协议栈,或者所述第一基站的rocp子层接收到所述第二基站的RLc子层实体发送的rocpPDU后,进行解封,根据添加的所述逻辑信号道,找到RLC实体并重新组装,通过所述RLC实体提取出重新组装的rocp PDU递交给rocp子层。 After the [0027] sub-layer of the first base station rocp the received sequence number of the one or more frames rocp RLC sublayer entity transmitting the second base station, according to the frame sequence number field rocp entire sequence and its redundant delete, submitted to tcp / ip protocol stack, or the rocpPDU rocp sublayer receives the first base station to said second base sub-layer entity is RLc sent after unseal, in accordance with the logic channel signal added, found RLC entity and reassembly sublayer extracted ROCP reassembled by rocp PDU delivered to the RLC entity.

[0028] 依据本发明的另一个方面,还提供了一种基站,包括: [0028] According to another aspect of the present invention, there is provided a base station, comprising:

[0029] 第一获取模块,用于在向终端发送下行数据的过程中,当下行无线链路控制协议子层RLC的协议数据单元rou的数据需要重传时,获取所述基站中与所述终端建立连接的第一服务小区的信号质量以及另一基站中与所述终端建立连接的第二服务小区的信号质量; [0029] The first acquiring module, configured to process a downlink data transmission to the terminal, when the protocol data unit rou downlink radio link control protocol RLC sublayer of the data needs to be retransmitted, the base station acquires the establishing a first terminal serving cell signal quality and a signal quality of the connection service to establish a second cell of another base station is connected with the terminal;

[0030] 第一重传模块,用于选择所述第一服务小区和第二服务的小区信号质量中,信号质量较好的服务小区所在的基站,重传所述PDU的数据。 [0030] first retransmission module, for selecting the first cell and the second service serving cell signal quality, the better signal quality service station where the cell, retransmission of the data PDU.

[0031 ] 可选地,所述第一重传模块包括: [0031] Alternatively, the first retransmission module comprises:

[0032] 第一获取单元,用于获取所述基站上需要重传的RLC PDU包含的一个或者多个分组数据汇聚协议rocp帧的序号或者获取RLC PDU的数据; [0032] The first acquisition unit for acquiring a sequence number or packet data convergence protocol rocp more frames need to be retransmitted to the base station or RLC PDU contained in the RLC PDU data acquired;

[0033] 第一发送单元,用于将获取的RLC PDU包含的一个或者多个rocp帧的序号通过X2接口发送给另一基站的RLC子层进行实体发送,或者将获取的RLC PDU的数据封装为HXPPDU类型,添加逻辑信号道,并发送给另一基站的服务小区进行发送。 [0033] a first transmitting unit, or a plurality of rocp number of frames for the acquired entity RLC PDU contained in the transmission, or the acquired data of the RLC PDU to the RLC sublayer of the package by another base station transmission interface X2 It is HXPPDU type, add logic channel signal, and sends the serving cell of another base station transmits.

[0034] 可选地,所述第一基站为宏基站MeNB,所述第二基站为源基站SeNB ;或者所述第一基站为源基站SeNB,所述第二基站为宏基站MeNB。 [0034] Alternatively, the first base station is a macro base station the MeNB, the second base station is the SeNB source base station; or the first base station is the SeNB source base station, the second base station is a macro base station MeNB.

[0035] 依据本发明的另一个方面,还提供了一种终端,包括: [0035] According to another aspect of the present invention, there is provided a terminal, comprising:

[0036] 第二获取模块,用于在向基站发送上行数据的过程中,当上行无线链路控制协议子层RLC的协议数据单元rou的数据需要重传时,获取所述基站中与所述终端建立连接的第一服务小区的信号质量以及另一基站中与所述终端建立连接的第二服务小区的信号质量; [0036] The second acquiring module, for transmitting the uplink data in the process to the base station, when the radio link control protocol RLC sublayer protocol data unit rou data needs to be retransmitted, the base station acquires the establishing a first terminal serving cell signal quality and a signal quality of the connection service to establish a second cell of another base station is connected with the terminal;

[0037] 第二重传模块,用于确定所述第一服务小区和第二服务的小区信号质量中,信号质量较好的服务小区所在的基站,重传所述PDU的数据。 [0037] The second retransmission module, for determining a first signal quality of the serving cell and the second service cell, the base station serving cell signal quality is preferably located, retransmission of the data PDU.

[0038] 可选地,所述第二重传模块包括: [0038] Alternatively, the second retransmission module comprises:

[0039] 第二获取单元,用于获取基站上的需要重传的RLC PDU包含的一个或者多个分组数据汇聚协议rocp帧的序号或者获取RLC PDCP的数据; [0039] a second obtaining unit, for a number or a plurality of packet data convergence protocol rocp frames acquired at the base station requires retransmission of the RLC PDU contains data or acquiring the RLC PDCP;

[0040] 第二发送单元,用于将获取的RLC PDU包含的一个或者多个rocp帧的序号发送给另一基站的RLC子层进行实体发送,或者将获取的RLC PDCP的数据封装为HXP PDU类型,添加逻辑信号道,并发送给另一基站的RLC子层进行实体发送。 [0040] a second transmitting unit, or a number of frames for a plurality of rocp acquired is transmitted to the RLC PDU containing the RLC sublayer other base station transmitting entity, the PDCP or RLC acquired data encapsulated as HXP PDU type, add logic channel signal, and sends the RLC sublayer entity other base station transmission.

[0041] 可选地,所述第一基站为宏基站MeNB,所述第二基站为源基站SeNB ;或者所述第一基站为源基站SeNB,所述第二基站为宏基站MeNB。 [0041] Alternatively, the first base station is a macro base station the MeNB, the second base station is the SeNB source base station; or the first base station is the SeNB source base station, the second base station is a macro base station MeNB.

[0042] 本发明的有益效果是:在本发明实施例中,在上下行数据传输的过程中,当在由于终端移动性造成传输信道的信号质量变差,无线链路控制协议子层RLC的协议数据单元PDU的数据需要重传时,通过获取与终端连接的两个基站的服务小区的信号质量并进行比较,选择信号质量较好的小区所在的基站对上述的PDU的数据进行重传,能够充分利用双连接的链路和空间分集。 [0042] Advantageous effects of the present invention is: In embodiments of the present invention, during the uplink and downlink data transmission, since when the terminal mobility caused by the transmission channel signal quality deteriorates, the radio link control protocol RLC sublayer of protocol data unit PDU needs retransmission data, and by comparing the signal quality of the serving cell acquires two base stations connected to the terminal, selecting a base station of a cell where the better signal quality of the data of the PDU to be retransmitted, to take advantage of the double link is connected and spatial diversity.

[0043] 进一步地,在本发明的实施例中,既能够实现MeNB上的数据在SeNB重传,又能实现SeNB上的数据在MeNB重传,因此,在双链路应用场景中,可以更好的保证AM业务流的传输质量,减少AM业务流的丢包率,获得更好的AM业务性能,保证用户在小区边界时,也能够获得更好的AM业务性能。 [0043] Further, in the embodiment of the present invention, can be achieved only on the data in the MeNB SeNB retransmission data but also to achieve the SeNB retransmission MeNB, therefore, in the two-link scenarios may be more to ensure good transmission quality AM traffic flow, reducing the packet loss rate of traffic flow AM, AM better service performance, to ensure that users at the cell border, it is possible to get better service performance AM.

附图说明 BRIEF DESCRIPTION

[0044] 图1表示本发明的实施例中下行传输选择基站重传PDU数据的流程图; [0044] FIG. 1 shows an embodiment of the present invention, the flowchart selects a base station transmitting a downlink PDU data retransmission;

[0045] 图2表示本发明的实施例中下行传输重传PDU数据的流程图; [0045] FIG. 2 shows an embodiment of the present invention, the downlink transmission data re-transmitted PDU flowchart;

[0046] 图3表示本发明的实施例中上行传输选择基站重传PDU数据的流程图; [0046] FIG. 3 shows an embodiment of the present invention in the flowchart of selecting a base station uplink transmission data PDU retransmission;

[0047] 图4表示本发明的实施例中上行传输重传PDU数据的流程图; [0047] FIG. 4 shows an embodiment of the present invention, the uplink transmission data re-transmitted PDU flowchart;

[0048] 图5表示本发明的实施例中基站端数据重传的结构框图; [0048] FIG. 5 shows a configuration block diagram of the base station side retransmits the data of the embodiment of the present invention;

[0049] 图6表示本发明实施例中第一重传模块的结构框图; [0049] FIG. 6 shows a block diagram of a first embodiment of the retransmission module embodiment of the present invention;

[0050] 图7表示本发明的实施例中终端端数据重传的结构框图; [0050] FIG. 7 shows a block diagram of the embodiment of the terminal end of the data retransmission of the embodiment of the present invention;

[0051] 图8表示本发明实施例中第二重传模块的结构框图。 [0051] FIG. 8 shows a block diagram showing a second embodiment of the retransmission module embodiment of the present invention.

具体实施方式 Detailed ways

[0052] 为使本发明的目的、技术方案和优点更加清楚,下面将结合附图及具体实施例对本发明进行详细描述。 [0052] To make the objectives, technical solutions, and advantages of the invention more clearly, the accompanying drawings and the following specific embodiments of the present invention will be described in detail.

[0053] 实施例一 [0053] Example a

[0054] 如图1所示,为本发明实施例中下行传输时,选择基站重传PDU数据的流程图,方法100包括如下步骤: [0054] FIG. 1, is a flowchart of the downlink transmission, the base station selecting data retransmitted PDU embodiment of the invention, the method 100 comprising the steps of:

[0055] 步骤S101、第一基站在向终端发送下行数据的过程中,当下行无线链路控制协议子层RLC的协议数据单元rou的数据需要重传时,获取第一基站中与终端建立连接的第一服务小区的信号质量以及第二基站中与终端建立连接的第二服务小区的信号质量; [0055] step S101, the first base station in transmitting downlink data to the terminal, the downlink data PDU rou radio link control protocol RLC sublayer when retransmission is needed, establishing a connection with a terminal acquires a first base station a first signal quality and a signal quality of the serving cell of the serving cell to establish a second connection with the second base station in the terminal;

[0056] 步骤S103、选择第一服务小区和第二服务的小区信号质量中,信号质量较好的服务小区所在的基站,重传rou的数据。 [0056] step S103, the cell selecting the first and second service serving cell signal quality, the better signal quality service station where the cell, rou retransmitted data.

[0057] 在本发明实施例中,在数据传输时,由于终端的移动性,有可能会进入一个深阴影衰落区域或者进入小区边界时,会造成传输信道的信号质量变差,因此,无线链路控制协议子层RLC的协议数据单元PDU的数据需要重传,通过获取与终端连接的两个基站的服务小区的信号质量,并将其进行比较,选择信号质量较好的小区所在的基站对上述的rou的数据进行重传,保证了用户即使在小区边界,也能够获得更好的AM业务性能,减少AM业务流的丢包率。 [0057] In the embodiment of the present invention, at the time of data transmission, due to the mobility of the terminal, may enter when a deep shadow fading area or enters a cell boundary, can cause the signal quality of the transmission channel is degraded, so that the radio chain PDU protocol data unit RLC sublayer of the path control protocol data needs to be retransmitted, by obtaining the signal quality of the serving cell of the terminal connected to the two base stations, and comparing it to select better signal quality of the cell where the base station rou data retransmission described above, to ensure that the user even in the cell boundary, it is possible to get better service performance AM, AM reduce packet loss rate traffic flow.

[0058] 其中,如图2所示,在本发明的实施例中,选择第一服务小区和第二服务的小区信号质量中,信号质量较好的服务小区所在的基站,重传PDU的数据(步骤S103),还具体包括以下步骤: [0058] wherein, as shown in the embodiment of the present invention, selecting a first cell and a second serving cell signal quality in service, the base station better signal quality service cell where retransmission data PDU 2 (step S103), further comprises the step of:

[0059] 步骤S1031、第一基站的分组数据汇聚协议rocp子层获取第一基站上需要重传的RLC PDU包含的一个或者多个rocp帧的序号或者获取RLC PDU的数据; [0059] Step S1031, the first base station packet data convergence protocol sublayer rocp obtaining a sequence number or a plurality of frames on a first base station rocp need to be retransmitted RLC PDU containing the RLC PDU or a data acquisition;

[0060] 步骤S1033、第一基站的rocp子层将获取的RLC PDU包含的一个或者多个TOCP帧的序号通过X2接口发送给第二基站的RLC子层进行实体发送,或者将获取的RLC PDU的数据封装为HXP PDU类型,添加逻辑信号道,并发送给第二基站的服务小区进行发送。 [0060] Step S1033, rocp sub-layer of the first base station a sequence number or a plurality of frames acquired TOCP RLC PDU contained in the transmitting entity, or the acquired RLC PDU to the RLC sub-layer of the second base station through the transmission interface X2 HXP PDU encapsulating data type, add logic channel signal, and sends the serving base station transmits a second cell.

[0061] 终端在接收重传的数据后,会对其进行处理,在本实施例中,步骤S1033之后,还包括: [0061] After the terminal receives the retransmitted data will be processed in the present embodiment, after the step S1033, further comprising:

[0062] 步骤S1035、终端接收到第二基站的RLC子层实体发送的一个或者多个HXP帧的序号后,根据rocp帧的序号字段对其进行整序及冗余删除,提交给tcp/ip协议栈;或者终端收到第二基站的服务小区发送的rocp PDU后,进行解封,根据添加的逻辑信号道,找到RLC实体并重新组装,通过RLC实体提取出重新组装的rocp PDU递交给TOCP子层。 [0062] Step S1035, after a number of frames or a plurality of HXP terminal receives the second base station transmits the RLC sublayer entity, according to the sequence number field of its frame rocp unscrambling and remove redundancy, submitted to tcp / ip protocol stack; rocp PDU or after the terminal receives a second serving cell base station transmitted, unseal, according to the logic signal channel adding to find and reassemble the RLC entity, the extracted rocp PDU by reassembling the RLC entities submit to TOCP sublayer.

[0063] 在发明实施例中,可以理解的是,对第一基站以及第二基站并不具体限定,第一基站为宏基站MeNB,第二基站为源基站SeNB ;或者第一基站为源基站SeNB,第二基站为宏基站MeNB。 [0063] In the invention embodiment, it is understood that the first base and second base is not particularly limited, the MeNB first base station is a macro base station, the second base station is the SeNB source; a first base station or a source base station SeNB, the second base station is a macro base station MeNB.

[0064] 其中,在进行下行传输处理时,在双连接情况下,MeNB serving cell的F1DCP子层提交一个HXP帧给MeNB serving cell的RLC子层的AM逻辑信号道发送时,当该RLC AMPDU需要重传时,除了可以在MeNB的serving cell下重传外,还可以在SeNB的servingcell下重传,也可以在MeNB和SeNB上都重传。 When [0064] wherein, during downlink transmission process, in a dual connection, F1DCP sublayer MeNB serving cell to submit a HXP frame to the RLC sublayer MeNB serving cell of the AM logic signal channel transmission, when the RLC requires an AMPDU retransmission, in addition to the retransmission at the serving cell MeNB, but also may be retransmitted at the SeNB servingcell, can also retransmit on the MeNB and the SeNB.

[0065] 具体地,MeNB上的数据在SeNB重传时,包括如下步骤,其中,每个步骤包括两种处理方式,且每个步骤中的方式I与方式2分别对应: [0065] Specifically, the data on the SeNB MeNB retransmission, comprising the steps, wherein each step includes two treatments, and each step in a manner I 2 corresponding manner:

[0066]步骤一、 [0066] Step a,

[0067] l、MeNB的RLC子层将该RLC AM PDU包含的一个或者多个HXP帧的序号RLC PDCP的数据通知给MeNB的I3DCP子层; [0067] l, MeNB RLC sublayer of the data or a serial number of a plurality of frames HXP RLC AM the PDCP PDUs included in the notified RLC I3DCP sublayer to the MeNB;

[0068] 2、MeNB的RLC子层将RLC PDU通知给MeNB的PDCP子层; [0068] 2, MeNB RLC sublayer of the RLC PDU to notify the PDCP sublayer MeNB;

[0069]步骤二、 [0069] Step II.

[0070] 1、MeNB的TOCP子层将获取的RLC PDU包含的一个或者多个HXP帧的序号通过X2接口发送给SeNB serving cell的RLC实体进行AM发送; RLC entity [0070] 1, a number of frames or a plurality of HXP TOCP MeNB sublayer of the RLC PDU contains the acquired transmitted to SeNB serving cell via the X2 interface AM transmission;

[0071] 2、MeNB的TOCP子层将获取的RLC PDCP的数据封装为I3DCP PDU类型,添加逻辑信号道,并发送给SeNB的serving cell进行发送; [0071] 2, TOCP MeNB sublayer of the acquired RLC PDCP data I3DCP PDU encapsulating type, add logic channel signal, and sends the serving cell SeNB transmits;

[0072] 步骤三、 [0072] Step III.

[0073] 1、终端的rocp子层从SeNB的RLC子层实体接收解封装的非新类型的HXP帧后,按照rocp帧的序号字段对其进行整序及冗余删除后,提交给tcp/ip协议栈。 After [0073] 1, rocp sub-layer of the terminal receives a new type of non-HXP decapsulating frames from the RLC sublayer entity SeNB, in accordance with its frame number field ROCP after unscrambling and remove redundancy, submitted to tcp / ip protocol stack.

[0074] 2、终端的rocp子层从SeNB的TOCP子层收到新的类型的的HXP PDU后,进行解封,根据添加的逻辑信号道发送对应的RLC实体,该RLC实体经过相应的组装,提取出重新组装的rocp PDU递交给rocp子层。 After [0074] 2, rocp sub-layer of the terminal receives a new type of HXP PDU from the SeNB TOCP sublayer, unseal, send a corresponding RLC entity according to the logic channel signal added to the RLC entity through the respective assembly extracted ROCP reassembly sublayer rocp PDU submitted to.

[0075] 具体地,SeNB上的数据在MeNB重传时,包括如下步骤,其中,每个步骤包括两种处理方式,且每个步骤中的方式I与方式2分别对应: [0075] Specifically, the data on the MeNB SeNB retransmission, comprising the steps, wherein each step includes two treatments, and each step in a manner I 2 corresponding manner:

[0076]步骤一、 [0076] Step a,

[0077] 1、SeNB的RLC子层将该RLC AM PDU包含的一个或者多个HXP帧的序号RLC PDCP的数据通知给SeNB的I3DCP子层; [0077] 1, SeNB RLC sublayer of the data sequence number or a plurality of RLC HXP frames of the PDCP PDUs included in the notification AM RLC to the SeNB I3DCP sublayer;

[0078] 2、SeNB的RLC子层将RLC PDU通知给SeNB的PDCP子层; [0078] 2, SeNB RLC sublayer of the RLC PDU to notify the PDCP sublayer SeNB;

[0079]步骤二、 [0079] Step II.

[0080] 1、SeNB的TOCP子层将获取的RLC PDU包含的一个或者多个HXP帧的序号通过X2接口发送给MeNB serving cell的RLC实体进行AM发送; RLC entity [0080] 1, a number of frames or a plurality of HXP TOCP SeNB sublayer of the RLC PDU contains the acquired transmitted to the MeNB serving cell via the X2 interface AM transmission;

[0081 ] 2、SeNB的TOCP子层将获取的RLC PDU的数据封装为I3DCP PDU类型,添加逻辑信号道,并发送给MeNB的serving cell进行发送; [0081] 2, TOCP SeNB sublayer of the acquired data of the RLC PDU encapsulating I3DCP PDU type, add logic channel signal, and sends the serving cell MeNB performs transmission;

[0082] 步骤三、 [0082] Step III.

[0083] 1、终端的HXP子层从MeNB的RLC子层实体接收解封装的非新类型的HXP帧后,按照rocp帧的序号字段对其进行整序及冗余删除后,提交给tcp/ip协议栈。 After [0083] 1, HXP sub-layer of the terminal receives a new type of non-HXP decapsulating frames from the RLC sublayer entity MeNB, in accordance with its frame number field rocp after unscrambling and remove redundancy, submitted to tcp / ip protocol stack.

[0084] 2、终端的rocp子层从MeNB的TOCP子层收到新的类型的的HXP PDU后,进行解封,根据添加的逻辑信号道发送对应的RLC实体,该RLC实体经过相应的组装,提取出重新组装的rocp PDU递交给rocp子层。 After [0084] 2, rocp sub-layer of the terminal receives a new type of HXP PDU from the MeNB TOCP sublayer, unseal, send a corresponding RLC entity according to the logic channel signal added to the RLC entity through the respective assembly extracted ROCP reassembly sublayer rocp PDU submitted to.

[0085] 实施例二 [0085] Second Embodiment

[0086] 如图3所示,为本发明实施例中上行传输时,选择基站重传PDU数据的流程图,方法300包括如下步骤: [0086] FIG. 3, is a flowchart of the uplink transmission, the base station selecting data retransmitted PDU embodiment of the invention, the method 300 comprising the steps of:

[0087] 步骤S301、终端在向第一基站发送上行数据的过程中,当上行无线链路控制协议子层RLC的协议数据单元rou的数据需要重传时,获取第一基站中与终端建立连接的第一服务小区的信号质量以及第二基站中与终端建立连接的第二服务小区的信号质量; [0087] step S301, the terminal in transmitting the uplink data to the first base station, when the radio link control protocol RLC sublayer protocol data unit rou data needs to be retransmitted, obtaining a first base station to establish connection with the terminal a first signal quality and a signal quality of the serving cell of the serving cell to establish a second connection with the second base station in the terminal;

[0088] 步骤S303、选择第一服务小区和第二服务的小区信号质量中,信号质量较好的服务小区所在的基站,重传PDU的数据。 [0088] Step S303, the selecting a first cell and a second serving cell signal quality in service, the base station serving cell signal quality is preferably located retransmitted PDU data.

[0089] 其中,如图4所示,在本发明的实施例中,选择第一服务小区和第二服务的小区信号质量中,信号质量较好的服务小区所在的基站,重传PDU的数据(步骤S303),还具体包括以下步骤: [0089] wherein, as shown in the embodiment of the present invention, selecting a first cell and a second serving cell signal quality in service, the base station serving cell signal quality is preferably located retransmitted PDU data 4 (step S303), further comprises the step of:

[0090] 步骤S3031、终端的分组数据汇聚协议rocp子层获取终端上行链路中第一基站需要重传的RLC PDU包含的一个或者多个rocp帧的序号或者获取RLC PDU的数据; [0090] Step S3031, a packet data convergence protocol sublayer rocp terminal acquires a number of frames or a plurality of terminal uplink rocp a first base station to be retransmitted RLC PDU containing the RLC PDU or a data acquisition;

[0091] 步骤S3035、终端的rocp子层将获取的RLC PDU包含的一个或者多个TOCP帧的序号发送给第二基站的RLC子层进行实体发送,或者终端的rocp子层将获取的RLC PDU的数据封装为rocp PDU类型,添加逻辑信号道,并发送给第二基站的RLC子层进行实体发送。 [0091] Reference TOCP transmitting one or more frames of rocp sublayer step S3035, the terminal of the acquired RLC PDU to the RLC sublayer comprising a second base station is transmitting entity, or rocp sublayer terminal RLC PDU acquired encapsulating rocp PDU data type, add logic channel signal, and sends the RLC sublayer entity sends the second base station is performed.

[0092] 第二基站在接收重传的数据后,会对其进行处理,在本实施例中,步骤S3033之后,还包括: [0092] The second base station after receiving the retransmission data, will be treated, in the present embodiment, after the step S3033, further comprising:

[0093] 步骤S3035、第一基站的TOCP子层接收到第二基站的RLC子层实体发送的一个或者多个rocp帧的序号后,根据rocp帧的序号字段对其进行整序及冗余删除,提交给tcp/ip协议栈,或者第一基站的rocp子层接收到第二基站的RLc子层实体发送的rocp pdu后,进行解封,根据添加的逻辑信号道,找到RLC实体并重新组装,通过RLC实体提取出重新组装的rocp pdu递交给rocp子层。 [0093] Step S3035, the number of the one or more frames rocp TOCP first base sub-layer entity receives RLC sublayer of the second base station transmitted according to the frame sequence number field rocp be redundant and deleting the entire sequence after submission to the tcp / ip protocol stack, the first base station or ROCP sublayer receives the sub-layer entity rocp pdu RLc transmitted from the second base station, unseal, according to the logic signal channel adding to find and reassemble RLC entity extracted ROCP reassembly sublayer rocp pdu delivered to the RLC entity through.

[0094] 在发明实施例中,可以理解的是,对第一基站以及第二基站并不具体限定,第一基站为宏基站MeNB,第二基站为源基站SeNB ;或者第一基站为源基站SeNB,第二基站为宏基站MeNB。 [0094] In the invention embodiment, it is understood that the first base and second base is not particularly limited, the MeNB first base station is a macro base station, the second base station is the SeNB source; a first base station or a source base station SeNB, the second base station is a macro base station MeNB.

[0095] 其中,在进行上行传输处理时,在双连接情况下,UE的rocp子层选择通过与MeNBserving cell链路的RLC子层实体的AM逻辑信道发送时,当该RLC AM PDU需要重传时,除了可以在MeNB的serving cell下重传外,还可以在SeNB的serving cell下重传,也可以在MeNB和SeNB上都重传。 [0095] wherein, during the uplink transmission process, in the case of the double connector, the sub-layer of the UE ROCP selected logical channel is transmitted through the AM MeNBserving cell link sublayers of the RLC entity, if the RLC AM PDU needs to be retransmitted when, in addition to the retransmission of the serving cell MeNB, but also may be retransmitted at a serving cell SeNB may also retransmit the MeNB and the SeNB.

[0096] 具体地,MeNB上的数据在SeNB重传时,包括如下步骤,其中,每个步骤包括两种处理方式,且每个步骤中的方式I与方式2分别对应: [0096] Specifically, the data on the SeNB MeNB retransmission, comprising the steps, wherein each step includes two treatments, and each step in a manner I 2 corresponding manner:

[0097]步骤一、 [0097] Step a,

[0098] 1、UE的RLC子层将该RLC AM PDU包含的一个或者多个I3DCP帧的序号RLC PDCP的数据通知给UE的rocp子层; [0098] 1, UE notifies the RLC sublayer of a number of frames or a plurality of I3DCP RLC AM PDU data contained in the PDCP to the RLC sub-layer of the UE rocp;

[0099] 2、UE的RLC子层将RLC PDU通知给UE的I3DCP子层; [0099] 2, RLC sub-layer of the UE notifies the RLC PDU to the UE I3DCP sublayer;

[0100]步骤二、 [0100] Step II.

[0101] 1、UE的rocp子层将获取的RLC PDU包含的一个或者多个rocp帧的序号发送给SeNB serving cell的RLC实体进行AM发送; RLC entity [0101] 1, a number of frames or a plurality of rocp rocp sub-layer of the UE RLC PDU contains the acquired transmitted to SeNB serving cell of the AM-transmission;

[0102] 2、UE的rocp子层将获取的RLC PDCP的数据封装为I3DCP PDU类型,添加逻辑信号道,并发送给SeNB的serving cell的RLC实体进行AM发送; [0102] 2, rocp sub-layer of the UE acquired the PDCP RLC data encapsulating I3DCP PDU type, add logic channel signal, sent to serving cell, the SeNB transmits RLC AM entity;

[0103] 步骤三、 [0103] Step III.

[0104] UMeNB的TOCP子层从SeNB的RLC子层实体接收解封装的非新类型的HXP帧后,按照rocp帧的序号字段对其进行整序及冗余删除后,提交给tcp/ip协议栈。 After [0104] UMeNB TOCP sublayer of the new type of non-HXP decapsulating frames received from the RLC sublayer entity SeNB, according to the sequence number field of its frame rocp unscrambling and remove redundancy, submitted to tcp / ip protocol stack.

[0105] 2,MeNB的HXP子层从SeNB的HXP子层收到新的类型的的HXP PDU后,进行解封,根据添加的逻辑信号道发送对应的RLC实体,该RLC实体经过相应的组装,提取出重新组装的rocp pdu递交给rocp子层。 After [0105] 2, MeNB of HXP sub layer receives a new type of HXP HXP sublayer PDUs from the SeNB, unseal, send a corresponding RLC entity according to the logic channel signal added to the RLC entity through the respective assembly extracted reassembled rocp pdu submitted to ROCP sublayer.

[0106] 具体地,SeNB上的数据在MeNB重传时,包括如下步骤,其中,每个步骤包括两种处理方式,且每个步骤中的方式I与方式2分别对应: [0106] Specifically, the data on the MeNB SeNB retransmission, comprising the steps, wherein each step includes two treatments, and each step in a manner I 2 corresponding manner:

[0107]步骤一、 [0107] Step a,

[0108] 1、UE的RLC子层将该RLC AM PDU包含的一个或者多个HXP帧的序号RLC PDCP的数据通知给UE的rocp子层; [0108] 1, UE RLC sublayer of the RLC AM PDU notification comprises one or more of HXP frames an RLC sequence number of the data to the PDCP sub-layer of the UE rocp;

[0109] 2、UE的RLC子层将RLC PDU通知给UE的PDCP子层; [0109] 2, RLC sub-layer of the UE notifies the RLC PDU to the UE PDCP sublayer;

[0110]步骤二、 [0110] Step II.

[0111] 1、1、UE的rocp子层将获取的rlc pdu包含的一个或者多个rocp帧的序号发送给MeNB serving cell的RLC实体进行AM发送; RLC entity [0111] 1,1, or more of a number of frames rocp rocp sub-layer of the UE RLC PDU contains the acquired MeNB serving cell is transmitted to the AM-transmission;

[0112] 2、UE的rocp子层将获取的RLC PDCP的数据封装为I3DCP PDU类型,添加逻辑信号道,并发送给MeNB的serving cell的RLC实体进行AM发送; [0112] 2, rocp sub-layer of the UE acquired the PDCP RLC data encapsulating I3DCP PDU type, add logic channel signal, sent to serving cell, AM RLC entity performs transmission MeNB;

[0113] 步骤三、 [0113] Step III.

[0114] UMeNB的TOCP子层从MeNB的RLC子层实体接收解封装的非新类型的HXP帧后,按照HXP帧的序号字段对其进行整序及冗余删除后,提交给TCP/IP协议栈。 After [0114] UMeNB TOCP sublayer of the new type of non-HXP decapsulating frames received from the RLC sublayer entity MeNB, according to the sequence number field of its frame HXP unscrambling and remove redundancy, submitted to the TCP / IP protocol stack.

[0115] 2,MeNB的HXP子层从MeNB的HXP子层收到新的类型的的HXP PDU后,进行解封,根据添加的逻辑信号道发送对应的RLC实体,该RLC实体经过相应的组装,提取出重新组装的rocp pdu递交给rocp子层。 After [0115] 2, MeNB of HXP sub layer receives a new type of HXP HXP sublayer PDUs from the MeNB, unseal, send a corresponding RLC entity according to the logic channel signal added to the RLC entity through the respective assembly extracted reassembled rocp pdu submitted to ROCP sublayer.

[0116] 实施例三 [0116] Example three

[0117] 本发明实施例还公开了一种基站,如图5所示,为本发明实施例中基站端数据重传的结构框图,其中500包括: [0117] Example embodiments of the present invention further discloses a base station, shown in Figure 5, a block diagram of the embodiment the base station side retransmits the data embodiment of the invention, wherein 500 comprising:

[0118] 第一获取模块501,用于在向终端发送下行数据的过程中,当下行无线链路控制协议子层RLC的协议数据单元PDU的数据需要重传时,获取基站中与终端建立连接的第一服务小区的信号质量以及另一基站中与终端建立连接的第二服务小区的信号质量; [0118] The first acquisition module 501, the process for transmitting downlink data to the terminal, when the downlink radio link control protocol RLC sublayer protocol data unit PDU data need to be retransmitted, the base station acquires the connection is established with the terminal a first signal quality and a signal quality of the serving cell of the serving cell to establish a second connection with another base station in the terminal;

[0119] 第一重传模块503,用于选择第一服务小区和第二服务的小区信号质量中,信号质量较好的服务小区所在的基站,重传rou的数据。 [0119] first retransmission module 503, for selecting a first cell and a second serving cell signal quality in service, the base station serving cell signal quality is preferably located, rou retransmitted data.

[0120] 在本发明实施例中,可选地,如图6所示,第一重传模块503还包括: [0120] In an embodiment of the present invention, alternatively, as shown in FIG 6, first retransmission module 503 further comprises:

[0121] 第一获取单元5031,用于获取基站上需要重传的RLC PDU包含的一个或者多个分组数据汇聚协议rocp帧的序号或者获取RLC PDU的数据; [0121] a first obtaining unit 5031, configured to obtain a sequence number or more packet data convergence protocol rocp frame at the base station to be retransmitted RLC PDU containing the RLC PDU or a data acquisition;

[0122] 第一发送单元5033,用于将获取的RLC PDU包含的一个或者多个TOCP帧的序号通过X2接口发送给另一基站的RLC子层进行实体发送,或者将获取的RLC PDU的数据封装为PDCP PDU类型,添加逻辑信号道,并发送给另一基站的服务小区进行发送。 [0122] The first sending unit 5033, a sequence number for frames or more TOCP acquired entity contained in the RLC PDU transmitted via the X2 interface to send to the RLC sublayer of another base station, or the acquisition of the RLC PDU data encapsulating PDCP PDU types, add the logical channel signal, and sends the serving cell of another base station transmits.

[0123] 在发明实施例中,可以理解的是,对第一基站以及第二基站并不具体限定,第一基站为宏基站MeNB,第二基站为源基站SeNB ;或者第一基站为源基站SeNB,第二基站为宏基站MeNB。 [0123] In the invention embodiment, it is understood that the first base and second base is not particularly limited, the MeNB first base station is a macro base station, the second base station is the SeNB source; a first base station or a source base station SeNB, the second base station is a macro base station MeNB.

[0124] 实施例四 [0124] Fourth Embodiment

[0125] 本发明实施例还公开了一种终端,如图7所示,为本发明实施例中终端端数据重传的结构框图,其中700包括: [0125] Example embodiments of the present invention further discloses a terminal, shown in Figure 7, a block diagram of a terminal end of the structure data retransmission embodiment of the invention, wherein 700 comprising:

[0126] 第二获取模块701,用于在向基站发送上行数据的过程中,当上行无线链路控制协议子层RLC的协议数据单元PDU的数据需要重传时,获取基站中与终端建立连接的第一服务小区的信号质量以及另一基站中与终端建立连接的第二服务小区的信号质量; [0126] The second acquiring module 701, the process for transmitting the uplink data to the base station, when the radio link control protocol RLC sublayer of the data protocol data unit PDU to be retransmitted, the terminal acquires the base station to establish a connection a first signal quality and a signal quality of the serving cell of the serving cell to establish a second connection with another base station in the terminal;

[0127] 第二重传模块703,用于确定第一服务小区和第二服务的小区信号质量中,信号质量较好的服务小区所在的基站,重传rou的数据。 [0127] second retransmission module 703, a signal for determining a first quality of service cell and the second service cell, the base station serving cell signal quality is preferably located, rou retransmitted data.

[0128] 在本发明实施例中,可选地,如图8所示,第一重传模块703还包括: [0128] In an embodiment of the present invention, alternatively, as shown in FIG. 8, first retransmission module 703 further comprises:

[0129] 第一获取单元7031,用于获取基站上需要重传的RLC PDU包含的一个或者多个分组数据汇聚协议rocp帧的序号或者获取RLC PDU的数据; [0129] a first obtaining unit 7031, configured to obtain a sequence number or more packet data convergence protocol rocp frame at the base station to be retransmitted RLC PDU containing the RLC PDU or a data acquisition;

[0130] 第一发送单元7033,用于将获取的RLC PDU包含的一个或者多个TOCP帧的序号通过X2接口发送给另一基站的RLC子层进行实体发送,或者将获取的RLC PDU的数据封装为PDCP PDU类型,添加逻辑信号道,并发送给另一基站的服务小区进行发送。 [0130] a first transmitting unit 7033, a sequence number for frames or more TOCP acquired RLC PDU is transmitted via the X2 interface comprises sending entity to the RLC sublayer for another base station, or the acquisition of the RLC PDU data encapsulating PDCP PDU types, add the logical channel signal, and sends the serving cell of another base station transmits.

[0131] 在发明实施例中,可以理解的是,对第一基站以及第二基站并不具体限定,第一基站为宏基站MeNB,第二基站为源基站SeNB ;或者第一基站为源基站SeNB,第二基站为宏基站MeNB。 [0131] In the invention embodiment, it is understood that the first base and second base is not particularly limited, the MeNB first base station is a macro base station, the second base station is the SeNB source; a first base station or a source base station SeNB, the second base station is a macro base station MeNB.

[0132] 以上的是本发明的优选实施方式,应当指出对于本技术领域的普通人员来说,在不脱离本发明的原理前提下还可以作出若干改进和润饰,这些改进和润饰也在本发明的保护范围内。 [0132] the above embodiment is a preferred embodiment of the present invention, it should be noted that those of ordinary skilled in the art the art, without departing from the principles of the present invention may also be made a number of improvements and modifications, improvements and modifications of the present invention are within the scope of protection.

Claims (14)

1.一种与终端双连接的基站的重传包重传的方法,其特征在于,所述方法包括: 第一基站在向终端发送下行数据的过程中,当下行无线链路控制协议子层RLC的协议数据单元rou的数据需要重传时,获取第一基站中与所述终端建立连接的第一服务小区的信号质量以及第二基站中与所述终端建立连接的第二服务小区的信号质量; 选择所述第一服务小区和第二服务的小区信号质量中,信号质量较好的服务小区所在的基站,重传所述PDU的数据。 A method for packet retransmission double base terminal connected to retransmission, characterized in that, said method comprising: a first base station during downlink data transmission to the terminal, the downlink radio link control sub-layer protocol rou RLC protocol data unit of the retransmission of data to obtain a first signal to establish a signal quality of the serving cell base station and connected to the first terminal and the second base station to establish a second connection with the serving cell terminal quality; cell signal quality of the first serving cell and the selected second service, the base station serving cell signal quality is preferably located, retransmission of the data PDU.
2.如权利要求1所述的方法,其特征在于,所述选择所述第一服务小区和第二服务的小区信号质量中,信号质量较好的服务小区所在的基站,重传所述rou的数据的步骤包括: 第一基站的分组数据汇聚协议rocp子层获取所述第一基站上需要重传的RLC PDU包含的一个或者多个rocp帧的序号或者获取RLC PDU的数据; 所述第一基站的rocp子层将获取的RLC PDU包含的一个或者多个rocp帧的序号通过X2接口发送给第二基站的RLC子层进行实体发送,或者将获取的RLC PDU的数据封装为PDCP PDU类型,添加逻辑信号道,并发送给第二基站的服务小区进行发送。 2. The method according to claim 1, wherein said cell selection signal quality of the first service and the second service cell, the base station serving cell signal quality is preferably located, retransmitting the rou data comprises the steps of: a first base station of a packet data convergence protocol sublayer rocp acquired number of frames of one or more rocp the first base station to be retransmitted RLC PDU containing the RLC PDU or a data acquisition; the first a number of frames or a plurality of rocp rocp a sublayer of the base station acquired by the RLC PDU contained in the transmission interface X2 to the RLC sub-layer entity sends the second base station, or the acquired data of the RLC PDU to PDCP PDU type package , add logic channel signal, and sends the serving base station transmits a second cell.
3.如权利要求2所述的方法,其特征在于,所述重传所述rou的数据的步骤还包括: 所述终端接收到所述第二基站的RLC子层实体发送的一个或者多个rocp帧的序号后,根据rocp帧的序号字段对其进行整序及冗余删除,提交给tcp/ip协议栈;或者所述终端收到所述第二基站的服务小区发送的rocp PDU后,进行解封,根据添加的所述逻辑信号道,找到RLC实体并重新组装,通过所述RLC实体提取出重新组装的rocp PDU递交给TOCP子层。 3. The method according to claim 2, wherein said step of retransmitting said data rou further comprising: the terminal receiving the second base station transmits the RLC sublayer entity of one or more after ROCP frame number, according to the sequence number field of its frame ROCP unscrambling and remove redundancy, submitted to tcp / ip protocol stack; terminal or the serving cell after rocp PDU transmitted from the second base station is received, unseal, according to the logic signal channel adding to find and reassemble the RLC entity, the sub-layer extracted TOCP reassembled by rocp PDU delivered to the RLC entity.
4.如权利要求1所述的方法,其特征在于,所述第一基站为宏基站MeNB,所述第二基站为源基站SeNB ;或者所述第一基站为源基站SeNB,所述第二基站为宏基站MeNB。 4. The method according to claim 1, wherein the first base station is a macro base station the MeNB, the second base station is the SeNB source base station; or the first base station is the SeNB source, the second The base station is a macro base station MeNB.
5.一种与终端双连接的基站的重传包重传的方法,其特征在于,所述方法包括: 终端在向第一基站发送上行数据的过程中,当上行无线链路控制协议子层RLC的协议数据单元rou的数据需要重传时,获取第一基站中与所述终端建立连接的第一服务小区的信号质量以及第二基站中与所述终端建立连接的第二服务小区的信号质量; 选择所述第一服务小区和第二服务的小区信号质量中,信号质量较好的服务小区所在的基站,重传所述PDU的数据。 A retransmission packet and retransmission method of a base station connected to the terminal double, characterized in that, said method comprising: a terminal during uplink data transmission to the first base station, when the uplink radio link control sub-layer protocol rou RLC protocol data unit of the retransmission of data to obtain a first signal to establish a signal quality of the serving cell base station and connected to the first terminal and the second base station to establish a second connection with the serving cell terminal quality; cell signal quality of the first serving cell and the selected second service, the base station serving cell signal quality is preferably located, retransmission of the data PDU.
6.如权利要求5所述的方法,其特征在于,所述选择所述第一服务小区和第二服务的小区信号质量中,信号质量较好的服务小区所在的基站,重传所述rou的数据的步骤具体包括: 终端的分组数据汇聚协议rocp子层获取终端上行链路中第一基站需要重传的RLCPDU包含的一个或者多个rocp帧的序号或者获取RLC PDU的数据; 终端的rocp子层将获取的RLC PDU包含的一个或者多个rocp帧的序号发送给第二基站的RLC子层进行实体发送,或者终端的rocp子层将获取的RLC PDU的数据封装为HXPPDU类型,添加逻辑信号道,并发送给第二基站的RLC子层进行实体发送。 6. The method according to claim 5, wherein said cell selection signal quality of the first service and the second service cell, the base station serving cell signal quality is preferably located, retransmitting the rou data step comprises: a packet data convergence protocol sublayer terminal ROCP acquiring a number of frames or a plurality of terminal uplink ROCP first base station RLCPDU need to be retransmitted RLC PDU contains data or acquired; ROCP terminal rocp number of frames of one or more sublayers of the RLC PDU contains the acquired transmits to the RLC sublayer of the second base station is transmitting entity, or rocp sublayer of the terminal of the acquired data of the RLC PDU encapsulating HXPPDU type, add logic channel signal, and sends the RLC sublayer entity sends the second base station is performed.
7.如权利要求5所述的方法,其特征在于,所述第一基站为宏基站MeNB,所述第二基站为源基站SeNB ;或者所述第一基站为源基站SeNB,所述第二基站为宏基站MeNB。 7. The method according to claim 5, wherein the first base station is a macro base station the MeNB, the second base station is the SeNB source base station; or the first base station is the SeNB source, the second The base station is a macro base station MeNB.
8.如权利要求7所述的方法,其特征在于,所述重传所述PDU的数据的步骤还包括: 所述第一基站的HXP子层接收到所述第二基站的RLC子层实体发送的一个或者多个PDCP帧的序号后,根据rocp帧的序号字段对其进行整序及冗余删除,提交给tcp/ip协议栈,或者所述第一基站的rocp子层接收到所述第二基站的RLC子层实体发送的rocp rou后,进行解封,根据添加的所述逻辑信号道,找到RLC实体并重新组装,通过所述RLC实体提取出重新组装的rocp PDU递交给rocp子层。 8. The method according to claim 7, wherein said step of retransmitting the PDU data further comprises: a first base station of the HXP sublayer receives the RLC sub-layer entity of the second base station after sending PDCP sequence number of the one or more frames according to the frame sequence number field rocp its entire sequence and remove redundancy, submitted to tcp / ip protocol stack, or the rocp sublayer receives the first base station after the RLC sublayer of the second base station transmitting entity rocp rou, unseal, according to the logic signal channel adding to find and reassemble the RLC entity, reassembled extracted rocp PDU delivered to the RLC entity through sub ROCP Floor.
9.一种基站,其特征在于,包括: 第一获取模块,用于在向终端发送下行数据的过程中,当下行无线链路控制协议子层RLC的协议数据单元rou的数据需要重传时,获取所述基站中与所述终端建立连接的第一服务小区的信号质量以及另一基站中与所述终端建立连接的第二服务小区的信号质量; 第一重传模块,用于选择所述第一服务小区和第二服务的小区信号质量中,信号质量较好的服务小区所在的基站,重传所述PDU的数据。 9. A base station, comprising: a first acquiring module, used in the process of transmitting downlink data to the terminal, the protocol data unit is rou downlink radio link control protocol RLC sublayer when the data to be retransmitted acquiring the base station to establish first quality of service quality of a signal connection cell and a second cell serving to establish a connection with another base station in the terminal and the terminal; first retransmission module, for selecting serving cell signal quality of said first and second service cell, the base station serving cell signal quality is preferably located, retransmission of the data PDU.
10.如权利要求9所述的基站,其特征在于,所述第一重传模块包括: 第一获取单元,用于获取所述基站上需要重传的RLC PDU包含的一个或者多个分组数据汇聚协议rocp帧的序号或者获取RLC PDU的数据; 第一发送单元,用于将获取的RLC PDU包含的一个或者多个HXP帧的序号通过X2接口发送给另一基站的RLC子层进行实体发送,或者将获取的RLC PDU的数据封装为TOCP PDU类型,添加逻辑信号道,并发送给另一基站的服务小区进行发送。 10. The base station according to claim 9, wherein said first retransmission module comprises: a first acquiring unit for acquiring the one or more packets of data on the base station to be retransmitted RLC PDU contains rocp frame convergence protocol sequence number of the RLC PDU or a data acquisition; a first transmitting unit, or a plurality of HXP number of frames for the acquired entity contained in the RLC PDU transmitted to the RLC sublayer to another base station through the transmission interface X2 or the acquired data of the RLC PDU encapsulating TOCP PDU type, add logic channel signal, and sends the serving cell of another base station transmits.
11.如权利要求9所述的基站,其特征在于,所述第一基站为宏基站MeNB,所述第二基站为源基站SeNB ;或者所述第一基站为源基站SeNB,所述第二基站为宏基站MeNB。 11. The base station according to claim 9, wherein the first base station is a macro base station the MeNB, the second base station is the SeNB source base station; or the first base station is the SeNB source, the second The base station is a macro base station MeNB.
12.—种终端,其特征在于,包括: 第二获取模块,用于在向基站发送上行数据的过程中,当上行无线链路控制协议子层RLC的协议数据单元PDU的数据需要重传时,获取所述基站中与所述终端建立连接的第一服务小区的信号质量以及另一基站中与所述终端建立连接的第二服务小区的信号质量; 第二重传模块,用于确定所述第一服务小区和第二服务的小区信号质量中,信号质量较好的服务小区所在的基站,重传所述rou的数据。 12.- type of terminal, characterized by comprising: a second acquiring module, used in transmitting uplink data to the base station, when the protocol data unit (PDU) of radio link control protocol RLC sublayer when the data to be retransmitted acquiring the signal quality of the first base station to establish a connection, and the serving cell signal quality of the serving cell to establish a second connection with another base station in the terminal and the terminal; second retransmission module, for determining serving cell signal quality of said first and second service cell, the base station serving cell signal quality is preferably located, rou retransmission of the data.
13.如权利要求12所述的终端,其特征在于,所述第二重传模块包括: 第二获取单元,用于获取基站上的需要重传的RLC PDU包含的一个或者多个分组数据汇聚协议rocp帧的序号或者获取RLC PDU的数据; 第二发送单元,用于将获取的RLC PDU包含的一个或者多个HXP帧的序号发送给另一基站的RLC子层进行实体发送,或者将获取的RLC PDU的数据封装为I3DCP PDU类型,添加逻辑信号道,并发送给另一基站的RLC子层进行实体发送。 13. The terminal according to claim 12, wherein said second retransmission module comprises: a second acquiring unit configured to acquire one or more packet data to the base station on the RLC PDU retransmitted aggregation comprising Get the serial number of the RLC PDU or a data protocol rocp frame; a second transmitting unit, or a plurality of HXP number of frames for containing the acquired RLC PDU transmitted to the RLC sublayer of other base station transmitting entity, or obtain data of RLC PDU encapsulating I3DCP PDU type, add logic channel signal, and sends the RLC sublayer entity other base station transmission.
14.如权利要求12所述的终端,其特征在于,所述第一基站为宏基站MeNB,所述第二基站为源基站SeNB ;或者所述第一基站为源基站SeNB,所述第二基站为宏基站MeNB。 14. The terminal according to claim 12, wherein the first base station is a macro base station the MeNB, the second base station is the SeNB source base station; or the first base station is the SeNB source, the second The base station is a macro base station MeNB.
CN201410566620.1A 2014-10-22 2014-10-22 Retransmission packet retransmitting method for base stations with dual-connectivity for terminal, base station and terminal CN105530077A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410566620.1A CN105530077A (en) 2014-10-22 2014-10-22 Retransmission packet retransmitting method for base stations with dual-connectivity for terminal, base station and terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410566620.1A CN105530077A (en) 2014-10-22 2014-10-22 Retransmission packet retransmitting method for base stations with dual-connectivity for terminal, base station and terminal

Publications (1)

Publication Number Publication Date
CN105530077A true CN105530077A (en) 2016-04-27

Family

ID=55772095

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410566620.1A CN105530077A (en) 2014-10-22 2014-10-22 Retransmission packet retransmitting method for base stations with dual-connectivity for terminal, base station and terminal

Country Status (1)

Country Link
CN (1) CN105530077A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018006871A1 (en) * 2016-07-08 2018-01-11 电信科学技术研究院 Data retransmission method and device
WO2018126547A1 (en) * 2017-01-06 2018-07-12 华为技术有限公司 Communication method, related device and system
WO2019080137A1 (en) * 2017-10-28 2019-05-02 Oppo广东移动通信有限公司 Method for transmitting data, network device and terminal device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102474752A (en) * 2009-08-14 2012-05-23 夏普株式会社 Methods, transmission point, serving base station and apparatus for coordinated multipoint transmission of information
CN103250370A (en) * 2011-08-01 2013-08-14 日电(中国)有限公司 Method and apparatus for enhancing downlink HARQ
WO2014021761A3 (en) * 2012-08-02 2014-04-24 Telefonaktiebolaget L M Ericsson (Publ) A node and method for handing over a sub-set of bearers
CN104023355A (en) * 2014-05-15 2014-09-03 北京邮电大学 Wireless communication network system based on centralized control and content distribution
WO2014158273A1 (en) * 2013-03-29 2014-10-02 Intel IP Corporation Techniques to facilitate dual connectivity
US20140293897A1 (en) * 2013-04-01 2014-10-02 Innovative Sonic Corporation Method and apparatus for adding serving cells in a wireless communication system
WO2014163436A1 (en) * 2013-04-05 2014-10-09 주식회사 팬택 Method and apparatus for wireless link control in wireless communication system supporting dual connectivity

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102474752A (en) * 2009-08-14 2012-05-23 夏普株式会社 Methods, transmission point, serving base station and apparatus for coordinated multipoint transmission of information
CN103250370A (en) * 2011-08-01 2013-08-14 日电(中国)有限公司 Method and apparatus for enhancing downlink HARQ
WO2014021761A3 (en) * 2012-08-02 2014-04-24 Telefonaktiebolaget L M Ericsson (Publ) A node and method for handing over a sub-set of bearers
WO2014158273A1 (en) * 2013-03-29 2014-10-02 Intel IP Corporation Techniques to facilitate dual connectivity
US20140293897A1 (en) * 2013-04-01 2014-10-02 Innovative Sonic Corporation Method and apparatus for adding serving cells in a wireless communication system
WO2014163436A1 (en) * 2013-04-05 2014-10-09 주식회사 팬택 Method and apparatus for wireless link control in wireless communication system supporting dual connectivity
CN104023355A (en) * 2014-05-15 2014-09-03 北京邮电大学 Wireless communication network system based on centralized control and content distribution

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
INTEL CORPORATION: "Radio link failure handling for dual connectivity", 《3GPP TSG RAN WG2 MEETING #83 R2-132819》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018006871A1 (en) * 2016-07-08 2018-01-11 电信科学技术研究院 Data retransmission method and device
CN107592186A (en) * 2016-07-08 2018-01-16 电信科学技术研究院 Data retransmission method and device
WO2018126547A1 (en) * 2017-01-06 2018-07-12 华为技术有限公司 Communication method, related device and system
WO2019080137A1 (en) * 2017-10-28 2019-05-02 Oppo广东移动通信有限公司 Method for transmitting data, network device and terminal device

Similar Documents

Publication Publication Date Title
KR101403985B1 (en) Device mobility for split-cell relay networks
RU2510898C2 (en) Relay architecture framework
US8812046B2 (en) System and method for self-optimization of interference coordination in communication systems
US9392515B2 (en) Data split between multiple sites
Seppälä et al. Network controlled device-to-device (D2D) and cluster multicast concept for LTE and LTE-A networks
TWI572223B (en) Information on link anchor and amplifier network in the retransmission technology
JP6348517B2 (en) Long term evolution wireless access network
US8458353B2 (en) Method and apparatus for link aggregation in a heterogeneous communication system
KR101465417B1 (en) Method for transmitting an opportunistic network related message
TWI612773B (en) High-rate dual-band cellular communications
KR101387475B1 (en) method of processing data in mobile communication system having a plurality of network entities
KR101218583B1 (en) Method and apparatus for pdcp reordering at handoff
KR20160062101A (en) Efficient uplink scheduling mechanisms for dual connectivity
CN102711174B (en) A method and a communication terminal apparatus, and method for exchanging data communication connection to
US20100260098A1 (en) Header compression for ip relay nodes
JP6336069B2 (en) Efficient status reporting of UEs in moving dual connection
US9681355B2 (en) Method for performing handover procedure and creating data
US9648514B2 (en) Method and system for protocol layer enhancements in data offload over small cells
TWI387285B (en) Wireless communication method for transmitting a sequence of data units between a wireless device and a network
JP4991939B2 (en) Method for intra-base station handover optimization
CN104023411B (en) The method for using relay node in a wireless communication system
US20130064198A1 (en) Multipath transport tunnel over multiple air interfaces connecting wireless stations
JP2015532566A (en) Wireless communication in multi-RAT system
CN102598825B (en) Quality of service control in a relay
US9844070B2 (en) System and method for decoupling long term evolution media access control scheduling from subframe rate procedures

Legal Events

Date Code Title Description
C06 Publication
C10 Entry into substantive examination