CN102208938A - Method, device and system for updating downlink subframe configuration - Google Patents

Method, device and system for updating downlink subframe configuration Download PDF

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Publication number
CN102208938A
CN102208938A CN2010101494782A CN201010149478A CN102208938A CN 102208938 A CN102208938 A CN 102208938A CN 2010101494782 A CN2010101494782 A CN 2010101494782A CN 201010149478 A CN201010149478 A CN 201010149478A CN 102208938 A CN102208938 A CN 102208938A
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downlink
relay node
message
configuration
update
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CN2010101494782A
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Chinese (zh)
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陈思
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中兴通讯股份有限公司
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Publication of CN102208938A publication Critical patent/CN102208938A/en

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Abstract

The invention discloses a method, device and system for updating downlink subframe configuration, wherein the method comprises the following steps that: a relay node receives a downlink message from a base station; the relay node analyzes an update instruction from the downlink message; and the relay node updates the downlink subframe configuration of a return link. Through the invention, the problem that the base station, the relay node and a user terminal can not be updated synchronously can be solved.

Description

下行子帧配置更新方法、装置及系统 Updating downlink subframe configuration method, apparatus and system for

技术领域 FIELD

[0001] 本发明涉及通信领域,具体而言,涉及一种下行子帧配置更新方法、装置及系统。 [0001] The present invention relates to communication field, particularly, to a downlink subframe configuration update method, apparatus and system. 背景技术 Background technique

[0002] 第三代移动通信长期演进(Long Term Evolution,简称为LTE)系统是第三代伙伴组织计划(Third Generation Partnership Pro jects, 3GPP)发展的基于正交频分多址(Orthogonal Frequency DivisionMultiple Access,简称0FDMA)技术的新的无线通信系统。 [0002] The third generation mobile communication long term evolution (Long Term Evolution, referred to as LTE) system is a third generation Partnership Program (Third Generation Partnership Pro jects, 3GPP) development of orthogonal frequency division multiple access (Orthogonal Frequency DivisionMultiple Access , referred to as OFDMA) technology, the new wireless communication system. 与现有无线通信技术相比,LTE具有数据传输带宽大,频谱效率高,对无线信号多径干扰的抗干扰性好等优点,是下一代通信系统的主要技术。 Compared with the conventional wireless communication technology, LTE having a large data transfer bandwidth, high spectral efficiency, immunity to multipath interference of radio signals and good, the main technical next generation communication systems.

[0003] 在无线通信系统中,某些地区由于地形或者环境原因无法进行普通基站的有线骨干网络连接,或者对一些覆盖死角或热点地区有临时性的无线覆盖需求,但架设有线连接的基站设备成本较高。 [0003] In a wireless communication system, in some regions due to terrain or environmental reasons can not be an ordinary base station wired backbone network connection, or some hot spots or dead covered with a temporary radio coverage requirements, but the erection of the base station device via a wired connection higher cost. 对于这些无线覆盖需求,通常可以采用无线中继(Relay)设备来解决。 For these wireless coverage requirements, it may be employed generally a wireless relay (Relay) to address the device. 无线中继设备与现有网络基站通过无线信号连接,并对自己覆盖范围内的UE提供服务,从而实现覆盖范围扩展,减少覆盖死角,转移热点地区负载等目的。 The radio relay station apparatus existing network connection via a wireless signal, and to cover its own UE being served, in order to achieve coverage expansion, reducing dead covering, hot spots load transfer purposes.

[0004] 目前,在LTE基础上,3GPP正继续发展高级长期演进(Long-krm Evolution advance,简称为LTE-A)标准。 [0004] At present, based on the LTE, 3GPP is continuing to develop Long Term Evolution Advanced (Long-krm Evolution advance, referred to as LTE-A) standard. 如图1所示,在LTE-A中,与中继节点(Relay Node,简称RN) 进行无线连接的基站称之为“施主基站”(Donor eNB,简称DeNB),Donor eNB和RN之间的无线链路称为回程链路(bacWiaul link),其空中接口可称之为Un接口。 As shown, in LTE-A, the base station radio connection call "donor base station" (Donor eNB, referred DeNB) and the relay node (Relay Node, referred to as RN). 1, between the Donor eNB and RN a radio link is called backhaul link (bacWiaul link), which may be referred to as an air interface Un interface. RN和UE之间的无线链路称为接入链路(accesslink),其空中接口可称之为Uu接口。 A radio link between the RN and UE is called an access link (accesslink), which may be called an air interface Uu interface. RN对于其服务的UE 充当一个eNB角色,而对于其Donor eNB则充当一个UE角色。 RN UE for its services to act as a role eNB, and for its Donor eNB UE acts as a role. 下行数据先到达Donor_eNB, 然后再传递给RN,RN再传输至UE,上行则反之。 Downlink data arrives first Donor_eNB, and then passed RN, RN and then transmitted to the UE, the uplink and vice versa.

[0005] 对于带内中继(inband relaying),中继节点在回程链路工作的频段与在接入链路工作的频段相同。 [0005] For relay (inband relaying) band, the same frequency band in the relay node operating in frequency band backhaul link access link work. 除非发送的信号和接收的信号之间的隔离够好,否则由于中继节点的发射机与接收机之间的相互干扰,导致中继节点无法同时占用相同的频域资源既在回程链路上接收信号又在接入链路上发送信号,或者既在回程链路上发送信号又在接入链路上接收信号。 Unless the isolation between the signal transmitted and the signal received is good enough, or due to the mutual interference between the relay node transmitter and the receiver, leading to the relay node can not occupy the same frequency domain resource simultaneously on both the backhaul link a reception signal and a transmission signal over an access link, or both the transmission signal received on the backhaul link and the access link signal.

[0006] 相关技术中解决带内中继中存在的干扰问题的方法是:当中继节点应当接收来自DeNB的数据时,中继节点不发送信号给终端,即在中继节点到用户终端的传输中插入一些“间隙”(Gap)。 [0006] The related art method of solving the interference problem with the relay are present: when the relay node should receive data from the DeNB, the relay node does not transmit a signal to the terminal, i.e. the transmission in the relay node to a user terminal Some inserting "gaps" (gap). 用户终端(包括Rel 8的用户终端)在这些“间隙”不接收中继节点的信号。 A user terminal (user terminal including Rel. 8) does not receive the signal of the relay node in these "gaps." 具体的实现方法是把这些有“间隙”的子帧配置为用户终端的多播/广播单频网路(Multicast/Broadcast Single FrequencyNetwork,简称为MBSFN)子中贞,如图2 所示。 The specific method is to have these "gaps" in the subframe configuration of a user terminal multicast / broadcast single frequency network (Multicast / Broadcast Single FrequencyNetwork, simply referred to as MBSFN) subframes in Chen, as shown in FIG.

[0007] 在LTE系统中更新MBSFN子帧需要先由小区的基站发送寻呼消息告知小区内的用户终端系统消息变化,在下一个广播控制信道(Broadcast Control Channel,简称为BCCH) 修改周期的起始时刻发送更新的系统消息SIB2,其中携带MBSFN子帧配置信息;小区内的用户终端如果收到寻呼消息则在相应的时刻接收更新的MBSFN子帧配置信息。 [0007] Update MBSFN subframe in the LTE system transmits a paging message frame needs to inform the user terminal system messages first by the base station changes cell within the cell, the next broadcast control channel (Broadcast Control Channel, abbreviated as BCCH) modification period starting transmitting updated system time message SIB2, which carries information about MBSFN subframe configuration; if the user terminals in the cell receives a paging message is received in a corresponding update time MBSFN subframe configuration information. 发明人发现,在目前相关技术中并没有提出如何更新回程链路的下行子帧配置,在回程链路的下行子帧与接入链路的MBSFN子帧相同的情况下,当需要对回程链路的下行子帧配置更新时(即需要对接入链路的MBSFN子帧更新时),如果没有考虑到接入链路的MBSFN子帧更新的特性,将导致基站、中继节点和用户终端三者不能同步更新,进而导致资源浪费等问题。 The inventors have found that, in the related art does not present how to update the backhaul link proposed downlink subframe configuration, in the same MBSFN subframe and a downlink subframe in the backhaul link access link, when the chain needs to return a downlink sub-frame configuration when updating the road (i.e. the frame update time required for MBSFN sub access link), if not take into account the characteristics of the MBSFN sub-frame update the access link will result in a base station, a relay node and a user terminal three can not be updated simultaneously, leading to waste of resources and other issues.

发明内容 SUMMARY

[0008] 本发明的主要目的在于提供一种下行子帧配置更新方法、装置及系统,以至少解决上述问题。 [0008] The main object of the present invention to provide a downlink subframe configuration update method, apparatus and system to at least solve the above problems.

[0009] 根据本发明的一个方面,提供了一种下行子帧配置更新方法,包括:中继节点接收来自基站的下行消息;中继节点从下行消息中解析出更新指示;中继节点更新回程链路的下行子帧配置。 [0009] In accordance with one aspect of the present invention, there is provided a method for updating a downlink sub-frame configuration, comprising: receiving a downlink message from the base node of the relay; relay node from the downlink message by parsing the update indication; backhaul updates the relay node link downlink sub-frame configuration.

[0010] 根据本发明的另一方面,提供了一种下行子帧配置更新系统,包括:基站和中继节点。 [0010] According to another aspect of the present invention, there is provided a downlink subframe configuration update system, comprising: a base station and a relay node. 其中,基站,用于向中继节点发送下行消息;中继节点,用于接收下行消息,并根据从下行消息中解析出的更新指示,更新回程链路的下行子帧配置。 Wherein the base station is configured to send a downlink message to the relay node; relay node for receiving a downlink message, and the downlink according to the parsed from the message indicating the update, the update of the backhaul link downlink subframe configuration.

[0011] 根据本发明的又一个方面,提供了一种中继节点,包括:接收模块、解析模块和更新模块。 [0011] According to another aspect of the present invention, there is provided a relay node, comprising: a receiving module, a parsing module and an updating module. 其中,接收模块,用于接收来自基站的下行消息;解析模块,用于从下行消息中解析出更新指示;更新模块,用于根据更新指示,更新回程链路的下行子帧配置。 Wherein, the receiving module, configured to receive a downlink message from a base station; parsing module configured to parse the message from the downlink update indication; updating module, configured to update instruction, the update of the backhaul link downlink subframe configuration.

[0012] 通过本发明,中继节点在接收到基站指示更新的下行消息时,更新回程链路的下行子帧配置,从而解决了基站、中继节点和用户终端三者不能同步更新的问题,进而避免了资源的浪费,保证了中继节点和用户终端的正常工作。 [0012] By the present invention, a relay node upon receiving a downlink message indicating an update of the base station, updating the backhaul link downlink subframe configuration, the base station so as to solve the problems of the three relay nodes and a user terminal can not synchronize updates, thereby avoiding the waste of resources, to ensure the normal operation of relay node and user terminals.

附图说明 BRIEF DESCRIPTION

[0013] 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。 [0013] The drawings described herein are provided for further understanding of the present invention, constitute a part of this application, exemplary embodiments of the present invention are used to explain the present invention without unduly limiting the present invention. 在附图中: In the drawings:

[0014] 图1是相关技术中采用中继节点的系统架构示意图; [0014] FIG. 1 is a system architecture diagram of a relay node employed in the related art;

[0015] 图2是相关技术中LTE-A系统中带内中继采用的子帧结构示意图; [0015] FIG. 2 is a schematic view of a sub-frame in LTE-A related art system employed with the relay;

[0016] 图3是根据本发明实施例的下行子帧配置更新系统的结构示意图; [0016] FIG. 3 is a schematic view update system configuration according to the downlink sub-frame of an embodiment of the present invention;

[0017] 图4是根据本发明实施例的中继节点的结构示意图; [0017] FIG. 4 is a diagram showing the configuration of a relay node according to an embodiment of the present invention;

[0018] 图5是根据本发明实施例的下行子帧配置更新方法的流程图; [0018] FIG. 5 is a flowchart of the updating method according to an embodiment of the downlink sub-frame configuration according to the present invention;

[0019] 图6是本发明实施例一的流程图; [0019] FIG. 6 is a flowchart of an embodiment of the present invention;

[0020] 图7是本发明实施例一种系统架构示意图; [0020] FIG. 7 is a system architecture diagram embodiment of the present invention;

[0021] 图8是本发明实施例一中的一种下行子帧配置的示意图; [0021] FIG. 8 is a schematic diagram of one embodiment of a downlink subframe configuration of the embodiment of the present invention;

[0022] 图9是本发明实施例一中的另一种下行子帧配置的示意图; [0022] FIG. 9 is a schematic diagram of another embodiment of a downlink subframe configuration embodiment of the present invention;

[0023] 图10是本发明实施例二中的一种下行子帧配置的示意图; [0023] FIG. 10 is a schematic diagram of two embodiment of a downlink subframe configuration of the embodiment of the present invention;

[0024] 图11是本发明实施例三中的一种下行子帧配置的示意图。 [0024] FIG. 11 is a schematic diagram of the embodiment thirty-one kinds downlink subframe configuration of the embodiment of the present invention.

具体实施方式 Detailed ways

[0025] 下文中将参考附图并结合实施例来详细说明本发明。 [0025] Hereinafter with reference to the accompanying drawings and embodiments of the present invention will be described in detail. 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。 Incidentally, in the case of no conflict, embodiments and features of the embodiments of the present application can be combined with each other.

[0026] 图3是根据本发明实施例的下行子帧配置更新系统的示意图,该系统包括:基站2和中继节点4。 [0026] FIG. 3 is a schematic diagram of the frame configuration updating system according to the downlink sub-embodiment of embodiment of the invention, the system comprising: a base station 2 and the relay node 4. 其中,基站2用于向中继节点4发送下行消息,该下行消息中携带有下行子帧配置更新指示;中继节点4用于接收上述下行消息,并根据从下行消息中解析出的下行子帧配置更新指示,更新回程链路的下行子帧配置。 Wherein, the base station 2 is configured to send a downlink message to the relay node 4, the message carries a downlink downlink subframe configuration update indication; 4 relay node for receiving said downlink message, and parse the message from the downlink subframes in a downlink according to frame configuration update instruction, the update of the backhaul link downlink sub-frame configuration.

[0027] 通过该系统,在需要更新回程链路的下行子帧配置时,基站2可以向中继节点4发送下行消息,指示中继节点4更新下行子帧配置,中继节点4在接收到该下行消息后,对回程链路的下行子帧配置进行更新,从而可以使得基站、中继节点和用户终端可以达到同步更新,避免了资源的浪费。 [0027] By this system, when the need to update the backhaul link downlink subframe configuration, the base station 2 may send a downlink message 4 to the relay node, the relay node 4 indicating downlink subframe configuration update, receiving the relay node 4 the downlink message, a downlink sub-frame configuration of the backhaul link is updated, so that the base station may be a relay node and a user terminal can be synchronized update, to avoid waste of resources.

[0028] 在具体实施过程中,基站2指示中继节点4进行下行子帧配置的方式包括但不限于以下三种: Embodiment [0028] In a specific implementation, the base station 2 instructs the relay node downlink subframes 4 configurations include but are not limited to the following three:

[0029] 方式一、基站2通过在下行消息中携带指示回程链路的下行子帧配置的配置信息来指示中继节点4进行下行子帧配置,中继节点4在接收到该下行消息之后,可以立即开始采用该配置信息指示的回程链路的下行子帧配置,也可以在中继节点4管理的中继小区的下一个或多个BCCH修改周期的起始时刻开始使用该配置信息指示的回程链路的下行子帧配置; [0029] one embodiment, the base station 2 via the backhaul link carries information indicating downlink sub-frame configuration in the downlink message configuration information indicating the relay node downlink subframe configuration 4, the relay node 4, after receiving the downlink message, can immediately begin using the downlink backhaul link sub-configuration information indicating a frame configuration can also use the configuration information is started at the start time of the one or more relay cell BCCH relay node 4 manages modification period indicated backhaul link downlink sub-frame configuration;

[0030] 方式二、基站2通过在下行消息中携带指示进行下行子帧配置的时刻的时间信息来指示中继节点4进行下行子帧配置,并同时在该下行消息中携带指示回程链路的下行子帧配置的配置信息,或者,也可以不在该下行消息中同时携带该配置信息,而是在发送携带时间信息的下行消息之前,先向中继节点4发送携带该配置信息的下行消息,中继节点4接收到携带时间信息的下行消息之后,在该时间信息所指示的时刻采用配置信息指示的回程链路的下行子帧配置; [0030] The second approach, the base station 2 is indicated by a downlink message carrying time information indicating downlink subframe configuration timing relay node 4 downlink subframe configuration, and also carry an indication that the downlink backhaul link message downlink subframe configuration information, or may not carry both the downlink message to the configuration information, but before sending a downlink message carrying the time information, Xianxiang relay node 4 transmits a downlink message carrying the configuration information, after the relay node 4 receives a downlink message carrying the time information using the downlink backhaul link sub-configuration information indicating the time information at the time indicated by frame configuration;

[0031] 方式三、基站2通过在下行消息中携带指示立即更新下行子帧配置的标识信息来指示中继节点4进行下行子帧配置的更新,在这种情况下,该下行消息中还可以携带上述配置信息,或者,基站2也可以在发送携带该标识信息的下行消息之前,向中继节点4发送携带上述配置信息的下行消息,中继节点4在接收到携带标识信息的下行消息之后,立即开始采用配置信息指示回程链路的下行子帧配置。 [0031] The third approach, the base station 2 by carrying the identification information indicating an updated Now downlink subframe configuration indication to the relay node 4 are updated downlink sub-frame configuration in the downlink message, in this case, the downlink message can also after the above-described configuration carries information, or may be base station 2 before transmitting a downlink message carrying the identification information, transmits the arrangement information carrying downlink message relay node 4, 4 in the relay node receiving the downlink message carrying identification information immediately start using configuration information indicates the backhaul link downlink subframe configuration.

[0032] 在具体实施过程中,可以根据具体需求,采用相应的方式进行下行子帧配置。 [0032] In a specific embodiment of the process, according to the specific needs, using the appropriate manner downlink subframe configuration.

[0033] 图4为根据本发明实施例的中继节点的结构示意图,该中继节点可以作为图3中的中继节点4。 [0033] FIG. 4 is a schematic structural diagram of a relay node according to an embodiment of the present invention, the relay node as a relay node 3 in FIG. 4. 该中继节点包括:接收模块40、解析模块42和更新模块44。 The relay node includes: a receiving module 40, update module 42 and analysis module 44. 其中,接收模块40,用于接收来自基站2的下行消息;解析模块42,用于从上述下行消息中解析出更新指示;更新模块44,用于根据上述更新指示,更新回程链路的下行子帧配置。 Wherein, the receiving module 40, configured to receive a downlink message from the base station 2; parsing module 42 for parsing a downlink message from said updated indication; updating module 44, based on the update instruction for updating the backhaul link downlink sub frame configuration. 通过该中继节点,可以在需要更新下行子帧配置时,根据基站2的指示更新回程链路的下行子帧配置。 By the relay node, may need to be updated when the downlink sub-frame configuration, the base station 2 according to an instruction of updating the backhaul link downlink subframe configuration.

[0034] 图5为根据本发明实施例的下行子帧配置更新方法的流程图,主要包括以下步骤(步骤S502-步骤S506): [0034] FIG. 5 is a flowchart illustrating a frame configuration update method according to an embodiment of the downlink sub-embodiment of the present invention, includes the following steps (step S502- Step S506):

[0035] 步骤S502,基站2向中继节点4发送下行消息; [0035] In step S502, the base station 2 transmits a downlink message to the relay node 4;

[0036] 在具体实施过程中,基站2根据中继节点4所管理的中继小区的相关信息确定发送下行消息的时机,中继节点4所管理的中继小区的相关信息可以是中继节点4主动向基站2上报的,也可以是基站2请求中继节点4上报的。 [0036] In a specific implementation, the base station 2 determines the timing of transmitting a downlink message according to information managed by the relay node 4 cell relay, the relay information managed by the relay node 4 may be a relay node cells 4 actively reports to the base station 2, the base station 2 requests may be reported by the relay node 4.

[0037] 其中,该下行消息中携带的信息包括但不限于以下之一或其任意组合:指示回程链路的下行子帧配置的配置信息、指示更新下行子帧配置的时刻的时间信息、指示立即更新下行子帧配置的标识信息。 [0037] wherein the downlink message carries information including but not limited to one or a combination of any of the following: configuration information indicating a downlink backhaul link subframe, downlink update time information indicating the subframe configuration time, indicating update identification information of the downlink subframe configuration immediately.

[0038] 在具体实施过程中,如果上述下行消息携带的信息包括配置信息和/或时间信息,或者配置信息和标识信息时,则该下行消息可以为无线资源控制(Radio Resource Control,简称为RRC)信令或媒体接入控制(Media Access Control,简称为MAC)控制元; 而如果上述下行消息携带的信息只包括标识信息时,则该下行消息可以包括以下之一:RRC 信令或MAC控制元或下行控制信息(DownlinkControl Identifier,简称为DCI)。 [0038] In a specific implementation, if the information of the downlink message carries includes configuration information and / or time information, or configuration information and the identification information, the downlink message may be a RRC (Radio Resource Control, abbreviated to RRC ) signaling or medium access control (media access control, abbreviated as MAC) control element; If the above information when the message carried in the downlink includes only the identification information, the downlink message may include one of the following: RRC signaling or MAC control mono- or downlink control information (DownlinkControl Identifier, abbreviated to DCI).

[0039] 步骤S504,中继节点4接收上述下行消息,从中解析出更新指示; [0039] In step S504, the downlink relay node 4 receives the message, parses update instruction;

[0040] 对应于上述下行消息中携带的信息,该更新指示包括但不限于以下之一或其任意组合:指示回程链路的下行子帧配置的配置信息、指示更新下行子帧配置的时刻的时间信息、指示进行下行子帧配置的标识信息。 [0040] correspond to the information carried in the downlink message, the update instruction including but not limited to any one or combination of the following: an indication of a backhaul link downlink sub-frame configuration the configuration information indicates the update time of the downlink subframe configuration time information indicating identification information for a downlink subframe configuration.

[0041] 在具体实施过程中,上述时间信息可以用于指示绝对时刻,即开始采用配置信息指示的回程链路的下行子帧配置的系统帧号和/或子帧号,也可以用于指示相对时刻,即指示开始采用配置信息指示的回程链路的下行子帧配置的周期,在这种情况下,该时间信息所指示的时刻为RN正确接收到上述下行消息之后的下一个周期的起始时刻,即RN在接收到下行消息之后的下一个周期的起始时刻开始采用新的下行子帧配置。 [0041] In a specific implementation process, the time information may be used to indicate an absolute time, i.e., start using a system frame number and / or a downlink subframe number of the backhaul link sub-frame configuration information indicating the configuration can also be used to indicate from the next cycle after the relative time, i.e., indicating the start of cycle using a downlink backhaul link sub-frame configuration information indicating the configuration, in this case, the time indicated by the time information for the RN to said downlink message correctly received start time, i.e. RN at starting time of a period after receiving the downlink message starts on the new downlink subframe configuration.

[0042] 步骤S506,中继节点4更新回程链路的下行子帧配置。 [0042] In step S506, the relay node 4 updates the backhaul link downlink subframe configuration.

[0043] 在具体实施过程中,中继节点4在接收到的下行消息后可以立即或之后的一个或多个BCCH修改周期的起始时刻,或者根据该下行消息中携带的时间信息或在此之前获得的时间信息,更新回程链路的下行子帧配置。 [0043] In a specific implementation process, after the relay node 4 receives a downlink message may start immediately or after a time or a plurality of BCCH modification period, or according to the time information carried in the message or a downlink here previously obtained time information, update the backhaul link downlink subframe configuration.

[0044] 在本发明实施例中,如果上述下行消息中同时携带有上述时间信息和标识信息, 可以设置在RN中设置预定策略,只按照其中一个信息的指示进行更新,而忽略另一个信息的指示。 [0044] In an embodiment of the present invention, if said time while carrying said downlink message information and the identification information, provided a predetermined policy may be provided in the RN, according to which only information indicating an update of information while ignoring the other instructions. 例如,可以在RN中设置,当上述下行消息中同时携带上述时间信息和上述标识信息时,忽略标识信息的指示,在时间信息所指示的时刻进行下行子帧配置的更新,当然反之也可行。 For example, may be provided in the RN, when said downlink message carrying both the time information and said identification information, ignoring the identification instruction information, updates the frame configuration of downlink subframes in the time period indicated by the information, of course, vice versa is also possible.

[0045] 通过本发明实施例提供的上述方法,中继节点4可以在接收到基站2的更新指示后,更新回程链路的下行子帧配置,使得基站、中继节点和用户终端三者可以同步的调整配置信息,从而保证了中继节点和用户终端的正常工作。 [0045] The method provided by the present invention, a relay node 4 may after receiving the update instruction of the base station 2, the update of the backhaul link downlink subframe configuration, such that the base station, the relay node and the user terminal can three adjusting the synchronization configuration information, thus ensuring the normal operation of the relay nodes and user terminals.

[0046] 下面以如图6所示的系统架构为例进行说明。 [0046] In the following system architecture shown in FIG. 6 as an example. 在图6中,基站管理的宏小区下包含两个中继节点即RNl和RN2,RN1、RN2分别维护各自的relay小区。 In FIG. 6, the base station managing a macro cell i.e. comprising two relay nodes RNl lower and RN2, RN1, RN2 each maintain their own relay cell. RNl和RN2在回程链路工作的频段与在接入链路工作的频段相同。 RNl and RN2 backhaul link frequency bands in the frequency band in the same access link work.

[0047] 实施例一 [0047] Example a

[0048] 在本实施例中,RNl和RN2主动向基站上报各自维护的中继小区的相关信息。 [0048] In the present embodiment, RNl and RN2 are maintained actively report information to the base station repeater cell. 并且,在本实施例中,基站发送的下行消息中只有Un下行子帧配置信息,没有与指定的时刻相关的时间信息。 Further, in the present embodiment, the base station transmits the downlink message only Un downlink subframe configuration information is not associated with the specified time of the time information.

[0049] 图7为本实施例的信令流程图,如图7所示,主要包括以下两个步骤: [0049] FIG. 7 is a signaling flowchart of an embodiment, shown in Figure 7, mainly comprises the following two steps:

[0050] 步骤701 =RNl和RN2分别通过上行消息(例如,RRC信令、MAC控制元)将各自管理的relay小区的时间相关信息上报给基站; [0050] Step 701 = RNl and RN2 respectively an uplink message (eg, RRC signaling, MAC control element) reports the time information managed by the respective cell relay to the base station;

[0051] 其中,时间相关信息指的是中继小区与宏小区的无线帧的偏移量、寻呼周期(defaultPagingCycle)和修改周期系数(modificationPeriodCoff)。 [0051] wherein, the time information refers to the relay macrocell radio frame offset, the paging cycle (defaultPagingCycle) and the modification period coefficient (modificationPeriodCoff). [0052] 在步骤701之前,RNU RN2通过接收来自基站的系统信息得到宏小区的无线帧编号、寻呼周期和修改周期系数。 [0052] Prior to step 701, RNU RN2 resulting macro cell radio frame number, a paging cycle and the modification period coefficient by receiving system information from a base station. 其中,寻呼周期和修改周期系数的乘积决定宏小区的BCCH 修改周期(modification period)。 Wherein the paging cycle and the product of the coefficient modification period determined macrocell BCCH modification period (modification period). RNU RN2通过OAM配置得到各自relay小区的无线帧编号、寻呼周期和修改周期系数,其中,寻呼周期和修改周期系数的乘积决定relay小区的BCCH修改周期。 RNU RN2 are each obtained by OAM cell relay configuration radio frame number, a paging cycle and the modification period coefficient, wherein the paging cycle and the modification period coefficient multiplied decision BCCH modification period relay cell.

[0053] 如果宏小区和relay小区的无线帧存在偏移(例如,无线帧边界不对齐,或者无线帧边界对齐但是无线帧编号不一致),则各个RN至少通过上述上行消息告知基站自己管理的relay小区的无线帧编号、子帧编号(如果无线帧边界对齐,则可以不上报)、或者无线帧的偏移量。 [0053] If the macro cell radio frame relay and cell there is an offset (e.g., radio frame boundary is not aligned, or aligned but the wireless radio frame boundary inconsistent frame number), the respective relay RN inform you manage the uplink message by the base station at least cell radio frame number, a subframe number (if the radio frame boundary alignment, may not be reported), or a radio frame offset. 基站根据各个RN上报的信息可以知道宏小区与各个relay小区的无线帧的偏移量。 The information reported by the base station may know each RN macro cell and the offset of each radio frame relay cell.

[0054] 如果宏小区和relay小区的BCCH修改周期不同,且寻呼周期不同,则各个RN至少通过上述上行消息告知基站自己管理的relay小区的寻呼周期。 [0054] If a macro cell and cell relay BCCH modification period is different, and different paging cycle, the paging cycle each RN inform the relay base station's own cell managed by at least the uplink message. 基站根据该上行消息携带的寻呼周期以及宏小区的修改周期系数(或者所述信息携带的修改周期系数)可以知道relay小区的BCCH修改周期。 The base station according to the uplink message carries paging cycle and a macro cell modification period coefficient (or the information carried by the coefficient modification period) may know the relay cell BCCH modification period.

[0055] 如果宏小区和relay小区的BCCH修改周期不同,且修改周期系数不同,则各个RN 至少通过上述上行消息告知基站自己管理的relay小区的修改周期系数。 [0055] If a macro cell and cell relay BCCH modification period is different, and different modification period coefficient, the coefficient modification period to inform each RN own relay cell managed by the base station of at least the uplink message. 基站根据该上行消息携带的修改周期系数以及宏小区的寻呼周期(或者所述信息携带的寻呼周期)可以知道relay小区的BCCH修改周期。 The base station according to a modification period coefficient of the uplink message carries the paging cycle and a macro cell (or the information carried in the paging cycle) can know the relay cell BCCH modification period.

[0056] 如果宏小区和relay小区的无线帧没有偏移(即无线帧边界对齐,且无线帧编号一致),且宏小区和relay小区的BCCH周期相同,则可以省略该步骤。 [0056] If the macro cell radio frame relay and cell no offset (i.e., aligned radio frame boundary, and the same radio frame number), the same BCCH period and the macro cell and cell relay, the step can be omitted.

[0057] 当基站不知道relay小区的BCCH修改周期时,基站通过下行消息(例如RRC信令、 MAC控制元、下行控制信息(DCI))触发RNl和RN2发送上行消息上报各自管理的中继小区的相关信息。 [0057] When the base station does not know the relay cell BCCH modification period, the base station through a downlink message (e.g. RRC signaling, the MAC control element, the downlink control information (the DCI)) and triggering RNl RN2 transmits uplink relay report message of each management cell relevant information. 或者,基站也可以默认relay小区与宏小区的BCCH修改周期相同。 Alternatively, the base station may be a default cell relay and the macrocell BCCH modification period is the same.

[0058] 或者,当基站不知道relay小区的无线帧与宏小区的无线帧是否偏移时,基站通过下行消息(如RRC信令、MAC控制元、下行控制信息(DCI))触发RN发送上行消息。 [0058] Alternatively, when the base station does not know a radio frame relay cell and the macro cell radio frame is shifted, the base station through a downlink message (e.g., RRC signaling, the MAC control element, the downlink control information (the DCI)) trigger the RN to transmit an uplink messages. 或者, 基站也可以默认relay小区与宏小区的无线帧边界对齐且无线帧编号一致。 Alternatively, the base station may be a default cell relay radio frame boundary is aligned with the macro cell radio frame number and the same.

[0059] 通过各个RN上报的信息,基站可以获知各个relay小区更新MBSFN子帧配置时使用新配置的时刻,即宏小区更新Un下行子帧配置时使用新配置的时刻。 [0059] through the information reported by each RN, the base station can be informed each time a new cell update using the relay configuration when MBSFN subframe configuration, i.e., macro cell update using the time when the new configuration Un downlink subframe configuration.

[0060] 步骤702,基站根据各个RN上报的时间相关的信息,分别向RNl和/或RN2发送下行消息触发RNl和/或RN2更新Un下行子帧配置(即回程链路的下行子帧配置),该下行消息中携带有Un下行子帧配置的配置信息; [0060] Step 702, the base station reported by each RN related to the time information, are transmitted to the RNl downlink message and / or triggering RNl RN2 and / or update Un RN2 downlink subframe configuration (i.e., downlink backhaul link sub-frame configuration) the Un downlink message carries configuration information of a downlink subframe configuration;

[0061] 需要说明的是,在本实施例中,下行消息中除了携带Un下行子帧配置的配置信息之外,还可以携带其它需要更新的配置信息,具体本发明实施例不作限定。 [0061] Incidentally, in the present embodiment, in addition to the downlink message carries configuration information of a downlink sub-frame configuration Un, you can also carry other configuration information needs to be updated, the specific embodiments of the present invention is not limited.

[0062] 对于RN1,开始使用新配置的时刻与RNl管理的relay小区的BCCH修改周期有关, 基站根据步骤701中获取的RNl时间相关的信息可以确定RNl管理的中继小区的BCCH修改周期,从而可以确定向RNl发送上述下行消息的时机;同样,对于RN2,基站向RN2发送上述下行消息的时机与RN2管理的relay小区的BCCH修改周期有关。 [0062] For the RN1, and timing started using a new configuration management RNl relay relevant cell BCCH modification period, the base station may determine the relay cell BCCH modification period management according RNl RNl time acquired in step 701 information related to timing may be determined to transmit the downlink message RNL; Also, for RN2, the BCCH modification period, the base station transmits the downlink message to RN2 RN2 Relay timing and a cell of managing.

[0063] 步骤703,RNl和/或RN2接收到上述下行消息之后,更新Un下行子帧配置以及Uu 的MBSFN子帧配置。 [0063] Step 703, RNl, and / or after RN2 receives the downlink message, downlink subframe configuration update Un and Uu MBSFN subframe configuration. [0064] RNl和/或RN2在正确接收上述下行消息之后,立即在relay小区内发送寻呼消息通知UE系统信息变化,在下一个BCCH修改周期的起始时刻开始采用新的Un下行子帧配置以及Uu的MBSFN子帧配置,并广播更新的SIB2 (其中携带MBSFN子帧配置)。 [0064] RNl and / or the RN2, sends a paging message immediately after receiving the downlink message correctly notify the UE within a cell relay system information is changed, the next start time a BCCH modification period starts on the new downlink subframe configuration and Un Uu MBSFN subframe configuration, and broadcasts the updated the SIB2 (carrying MBSFN subframe configuration).

[0065] 如图8所示,Un下行子帧配置是中继节点特定(RN specific)的,即RNl的Un下行子帧配置和RN2的Un下行子帧配置是不一致的,则基站根据步骤702之前获得的信息在合适的时机发送下行消息给RNl和/或RN2,图8中示例为假设RNl的Un下行子帧配置更新了,RN2的Un下行子帧配置没有更新,因此基站只触发了RN1。 [0065] As shown, Un downlink subframe the relay node is specific configuration (RN specific), i.e. RNl downlink subframe configuration of Un and Un downlink subframe configuration is inconsistent RN2 8, the base station 702 in accordance with step information obtained previously transmitted downlink message at the right time to RNl and / or the RN2, illustrated in Figure 8 is assumed Un downlink sub RNl frame configuration update, the RN2 of Un downlink subframe configuration is not updated, and therefore the base station triggers only RN1 . RN2的更新处理与RNl的类似,在此不再一一赘述。 Similar processing RNl update of the RN2, which will not enumerate.

[0066] 如图9所示,Un下行子帧配置是小区特定(cell specific)的,即RNl的Un下行子帧配置和RN2的Un下行子帧配置是一致的,则基站根据步骤702之前获得的信息在合适的时机发送上述下行消息给RNl和RN2。 [0066] As shown, Un downlink subframe configuration 9 is a cell-specific (cell specific), i.e. RNl downlink subframe configuration of Un and Un RN2 downlink subframe configuration is the same, obtained according to the base station prior to step 702 the information transmitted to the downlink message at the right time and to RNl RN2. 图9中示例为假设RNl和RN2的relay小区的无线帧没有偏移,RNl和RN2的relay小区的BCCH周期不一致。 Is illustrated in Figure 9 is assumed that the radio frame RNl RN2 and cell relay is not shifted, and inconsistent BCCH period RNl RN2 the relay cell. 如果两者的BCCH周期一致则意味着发送上述下行消息的时机是较为接近的。 If the period of time consistent with both the BCCH transmits the downlink message is meant to be relatively close.

[0067] 实施例二 [0067] Second Embodiment

[0068] 本实施例与实施例一基本相似,不同之处在于,RN正确接收所述下行消息之后,RN 在一个或多个BCCH修改周期的起始时刻开始在本小区内发送寻呼消息通知UE系统信息变化。 After [0068] The present embodiment is substantially similar to the first embodiment, except that, the RN receives the downlink message correctly, the RN sends a paging message notification starts within the cell in one or more of the BCCH modification period starting time UE changes in the system information. 相应地,开始使用新配置的时机也延后了。 Accordingly, the time to start using the new configuration also postponed. 如图10所示,謂1在接收到Un下行子帧配置之后的一个BCCH修改周期的起始时刻开始在本小区内发送寻呼消息通知UE系统信息变化,而在下一个BCCH修改周期的起始时刻开始采用新的Un下行子帧配置和Uu的MBSFN子帧配置。 As shown in FIG 1 in that receiving a BCCH modification period after the starting time of Un downlink subframe configuration UE starts sending a paging message notification system information is changed within the cell, and on the next BCCH modification period starting 10 start time of new Un Uu downlink subframe configuration and an MBSFN subframe configuration.

[0069] 实施例三 [0069] Example three

[0070] 在本实施例中,基站和RN可以采用与实施例一或实施例二相同的信令交互,不同之处在于,在本实施例中,基站向RN发送的下行消息中除了Un下行子帧配置信息,还有指示更新的时刻的时间信息。 [0070] In the present embodiment, the base station and the RN may be employed with the same embodiment or embodiments a signaling interaction according to the second embodiment, except that, in the present embodiment, the base station transmits a downlink message to the RN in addition to downlink Un subframe configuration information, and time information indicating the time of the update.

[0071] 在本实施例中,无论对于RNl还是RN2,开始使用新配置的时刻与时间信息有关。 [0071] In the present embodiment, whether or RNl for the RN2, time to start using the new configuration information related to time. RN在开始采用新配置的前一个BCCH修改周期(relay小区的)的起始时刻开始在relay小区内发送寻呼消息通知UE系统信息变化,在下一个BCCH修改周期的起始时刻开始采用新的Un下行子帧配置以及Uu的MBSFN子帧配置,并广播更新的SIB2 (其中携带MBSFN子帧配置)。 RN UE starts sending a paging system information change notification message in the relay at the beginning of the cell before the new configuration of a BCCH modification period (cell relay) start time, the start time of the next BCCH modification period starts on the new Un Uu downlink subframe configuration and an MBSFN subframe configuration, and broadcasts the updated the SIB2 (carrying MBSFN subframe configuration).

[0072] 上述时间信息是由基站决定的,例如基站通过步骤701可以获知RNl和RN2的relay小区的BCCH修改周期,基站选择其中最大值作为时间信息。 [0072] the time information is determined by the base station, e.g., base station 701 may step through known RNl BCCH modification period and the relay RN2 cell, wherein the base station selects the maximum value as time information. 该时间信息是一个与无线帧编号相关的信息,例如,对时间信息取模为一定值(如0)的无线帧编号所对应的时刻。 This time information is associated with a radio frame number information, e.g., time information modulo time constant value (e.g., 0) of the corresponding radio frame number. 该时间信息所指示的时刻与下行消息接收是否成功无关,即无论RN接收多少次才接收成功该下行消息,该时间信息所指示的时刻相同。 Downlink message time and time information indicating the reception success has nothing to do, that no matter how many times RN receives the downlink message was successfully received, the same time the time information is indicated.

[0073] 如图11所示,Un下行子帧配置是小区特定(cell specific)的,即RNl的Un下行子帧配置和RN2的Un下行子帧配置是一致的。 [0073] 11, Un downlink subframe configuration is cell-specific (cell specific), i.e. RNl downlink subframe configuration of Un and Un RN2 the downlink subframe configuration is the same. RNl和RN2的relay小区的无线帧没有偏移,RNl和RN2的relay小区的BCCH修改周期不一致。 RNl the radio frame relay and cell RN2 not shifted, the relay RN2 and inconsistent RNl cell BCCH modification period. 基站根据步骤702之前获得的信息在合适的时机发送上述下行消息给RNl和RN2。 The base station transmits the downlink message at the right time according to the information obtained prior to the step 702 to RNl and RN2. RNl和RN2在接收到该下行消息之后,在该下行消息中携带的时间信息所指示的时刻的前一个BCCH修改周期的起始时刻开始在本小区内发送寻呼消息通知UE系统信息变化,而在下一个BCCH修改周期的起始时刻开始采用新的Un下行子帧配置和Uu的MBSFN子帧配置。 RNl RN2 and the downlink after receiving the message, the time before the start time of a BCCH information carried in the downlink message indicated time modification period starts transmitting a paging message to notify the UE in this cell system information is changed, and a start time next BCCH modification period starts on the new downlink subframe configuration Un and Uu MBSFN subframe configuration.

[0074] 在Un下行子帧配置是中继节点特定的情况下,例如,RNl的配置更新了,RN2的配置没有更新,则基站只为RNl发送了上述下行消息,RNl的行为与图11中RNl的行为类似,根据下行消息中携带的时间信息的指示发送寻呼消息,更新Un的下行子帧配置和Uu的MBSFN子帧配置。 [0074] Under certain circumstances is a relay node, e.g., update the configuration RNL, the RN2 configuration is not updated, the base station only transmits the RNL in said downlink message is a downlink subframe configuration Un, the behavior RNL 11 in FIG. similar behavior RNl, sends a paging message according to the instruction of the downlink time information carried in the message, updates the downlink subframe configuration Un and Uu MBSFN subframe configuration. 在此不再一一赘述。 In this not going to repeat them.

[0075] 需要说明的是,在本实施例中,携带时间信息的下行消息与携带配置信息的下行消息可以是一条,也可以是多条,具体本实施例不作限定。 [0075] Incidentally, in the present embodiment, the downlink message carrying the time information and the downlink message carrying the configuration information may be one, or may be a plurality of specific embodiments is not limited in the present embodiment.

[0076] 实施例四 [0076] Fourth Embodiment

[0077] 在本实施例中,基站和RN可以采用与实施例一或实施例二相同的信令交互,不同之处在于,在本实施例中,基站向RN发送的下行消息中除了Un下行子帧配置信息,还有指示立即更新的标识信息。 [0077] In the present embodiment, the base station and the RN may be employed with the same embodiment or embodiments a signaling interaction according to the second embodiment, except that, in the present embodiment, the base station transmits a downlink message to the RN in addition to downlink Un subframe configuration information, and identification information indicating the update immediately.

[0078] 例如,当RN管理的relay小区中没有连接态的UE时,由于此时relay小区的UE 是空闲态的UE,并没有业务传输的过程,因此,RN立即采用新的配置信息并不会对relay小区的UE的业务传输造成影响。 When [0078] For example, when the cell relay RN UE is not managed by the connected state, since at this time the UE is a cell relay UE idle state, and no service transmission process, therefore, to adopt the new RN configuration information is not will relay cell of the UE transmission business impact.

[0079] 当然,上述标识信息也可以不和配置信息在一条下行消息中发送的,例如,基站先发送携带配置信息的下行消息给RN,然后再发送携带标识信息的下行消息给RN。 [0079] Of course, this may not be the identification information and configuration information is sent in a downlink message, for example, the base station transmits a downlink message carrying the first configuration information to the RN, and then transmits a downlink message carrying identification information to the RN. RN在接收到携带配置信息的下行消息时并不更新,而是在收到携带标识信息的下行消息时立即更新。 RN is not updated when receiving a downlink message carrying the configuration information, but the updated immediately upon receipt of a downlink message carrying the identification information.

[0080] 从以上的描述中,可以看出,在本发明实施例中,中继节点根据基站的指示更新回程链路的下行子帧配置,可以保证基站、中继节点和终端的同步更新,从而避免了下行资源的浪费。 [0080] From the above description, it can be seen that, in the embodiment of the present invention, the relay node frame configuration according to an instruction to update the backhaul link of the downlink sub-station, a base station can guarantee the synchronization update, the relay node and the terminal, thereby avoiding the waste of downlink resources. 并且也能保证Relay小区的UE根据下行子帧配置测量结果可以真实地反映接入链路的信道质量。 And also to ensure UE Relay frame configuration of a cell measurement according to the downlink sub-channel can truly reflect the quality of the access link.

[0081] 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。 [0081] Obviously, those skilled in the art should understand that the modules or steps of the present invention described above can be used general-purpose computing device, they can be integrated in a single computing device or distributed across multiple computing devices available on the Internet, optionally, they can be implemented with program codes executable by a computing device, so that, to be performed by a computing device stored in a storage means, and in some cases, may be different from this at step sequence shown or described, or they are made into integrated circuit modules, or by making them of a plurality of modules or steps in a single integrated circuit module. 这样,本发明不限制于任何特定的硬件和软件结合。 Thus, the present invention is not limited to any particular hardware and software combination.

[0082] 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。 [0082] The above description is only preferred embodiments of the present invention, it is not intended to limit the invention to those skilled in the art, the present invention may have various changes and variations. 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。 Any modification within the spirit and principle of the present invention, made, equivalent substitutions, improvements, etc., should be included within the scope of the present invention.

Claims (15)

1. 一种下行子帧配置更新方法,其特征在于,包括:中继节点接收来自基站的下行消息;所述中继节点从所述下行消息中解析出更新指示;所述中继节点更新回程链路的下行子帧配置。 A downlink subframe configuration method for updating, which is characterized in that, comprising: receiving a downlink message from the base station of a relay node; parsing the relay node update instruction from the downlink message; backhaul updates the relay node link downlink sub-frame configuration.
2.根据权利要求1所述的方法,其特征在于,所述更新指示包括以下至少之一:指示所述回程链路的下行子帧配置的配置信息、指示更新所述下行子帧配置的时刻的时间信息、 指示进行下行子帧配置更新的标识信息。 2. The method according to claim 1, wherein said at least one update instruction comprises: configuration information indicating a configuration of a downlink sub-frame of the backhaul link, the update time indicating the downlink subframe configuration time information, the identification information for indicating a downlink subframe configuration update.
3.根据权利要求2所述的方法,其特征在于,所述时间信息用于指示更新所述下行子帧配置的系统帧号和/或子帧号,或者所述时间信息用于指示更新所述下行子帧配置的周期。 3. The method according to claim 2, wherein said time information for indicating an updated system frame number of the downlink subframe configuration and / or subframe number, or information indicating the update time said downlink period of a subframe configuration.
4.根据权利要求3所述的方法,其特征在于,如果所述时间信息用于指示所述周期,则所述时间信息所指示的更新所述下行子帧配置的时刻为正确接收到所述下行消息之后的下一个周期的起始时刻。 4. The method according to claim 3, wherein the downlink sub-time update, said time information if said information indicating the time period indicated by the frame correctly configured for receiving the the starting time of the next cycle after the downlink message.
5.根据权利要求2所述的方法,其特征在于,所述更新指示包括所述配置信息时,所述中继节点更新回程链路的下行子帧配置包括:所述中继节点在预定时刻开始采用所述配置信息指示的回程链路的下行子帧配置,其中,所述预定时刻包括:以下之一:所述中继节点正确接收所述下行消息的时刻、所述中继节点接收所述下行消息之后的所述中继节点管理的中继小区的下一个或多个广播控制信道BCCH修改周期的起始时刻。 5. The method according to claim 2, wherein said indication comprises update the configuration information, update the relay node downlink backhaul link subframe configuration comprising: the relay node at a predetermined time start backhaul link using the configuration information indicating the configuration of a downlink subframe, wherein the predetermined time comprises: one of the following: the time of the relay node receives the downlink message correctly, the relay node receives relay broadcast at one or more cells managed by the relay node after the starting time of said downlink message channel BCCH modification period.
6.根据权利要求5所述的方法,其特征在于,所述更新指示还包括所述时间信息,或者,在所述中继节点接收所述下行消息之前,所述方法还包括所述中继节点接收来自所述基站的携带所述时间信息的消息;所述预定时刻还包括:所述时间信息所指示的时刻。 6. The method according to claim 5, wherein said indication further includes the update time information, or, prior to the relay node receives the downlink message, the method further comprises the relay node receiving the message carrying the time information from the base station; said predetermined time further comprises: the time indicated by the time information.
7.根据权利要求2所述的方法,其特征在于,所述更新指示包括所述时间信息时,在所述中继节点接收所述下行消息之前,所述方法还包括所述中继节点接收来自所述基站的携带所述配置信息的消息;所述中继节点更新回程链路的下行子帧配置包括:所述中继节点在所述时间信息所指示的时刻开始采用所述配置信息指示的回程链路的下行子帧配置。 7. The method according to claim 2, wherein said indication includes the update time information, the relay node before receiving the downlink message, the method further comprises the relay node receives message from the base station carrying the configuration information; and update the backhaul link to the relay node downlink subframe configuration comprising: the relay node begins using the configuration information indicates the time indicated by the time information downlink backhaul link sub-frame configuration.
8.根据权利要求2所述的方法,其特征在于,所述更新指示包括所述标识信息时,所述更新指示还包括所述配置信息;所述中继节点更新回程链路的下行子帧配置包括:所述中继节点在接收到所述下行消息后,立即开始采用所述配置信息指示的回程链路的下行子帧配置。 8. The method according to claim 2, wherein, when said updated indication includes the identification information indicating the updating further comprises the configuration information; and update the backhaul link to the relay node downlink subframes configuration comprising: the relay node after receiving the downlink message, immediately began to use the sub-downlink backhaul link configuration information indicating frame configuration.
9.根据权利要求5至8中任一项所述的方法,其特征在于,所述下行消息包括无线资源控制RRC信令或媒体接入控制MAC控制元。 8 to 9. The method according to any one of the preceding claims, wherein said message comprises a downlink radio resource control (RRC) signaling or medium access control (MAC) control element.
10.根据权利要求2所述的方法,其特征在于,所述更新指示包括所述标识信息时,在所述中继节点接收所述下行消息之前,所述方法还包括所述中继节点接收来自所述基站的携带所述配置信息的消息;所述中继节点更新回程链路的下行子帧配置包括:所述中继节点在接收到所述下行消息后,立即开始采用所述配置信息指示的回程链路的下行子帧配置。 10. The method according to claim 2, wherein said indication comprises updating said identification information prior to the relay node receives the downlink message, the method further comprises the relay node receives message from the base station carrying the configuration information; and update the backhaul link to the relay node downlink subframe configuration comprising: the relay node after receiving the downlink message, immediately began to use the configuration information indicating downlink backhaul link sub-frame configuration.
11.根据权利要求10所述的方法,其特征在于,所述下行消息包括以下之一 :RRC信令、MAC控制元、下行控制信息DCI。 11. The method according to claim 10, wherein the downlink message comprises one of the following: RRC signaling, the MAC control element, the downlink control information DCI.
12.根据权利要求1至8、10和11中任一项所述的方法,其特征在于,在所述中继节点接收所述下行消息之前,所述方法还包括:所述基站接收所述中继节点发送的上行消息,其中,所述上行消息中至少携带有所述中继节点所管理的中继小区的以下参数之一:寻呼周期、修改周期系数、中继小区与宏小区的无线帧的偏移量。 12. The method of 1 to 8, 10 and 11 according to any one of the preceding claims, characterized in that, prior to the relay node receives the downlink message, the method further comprising: the base station receiving the uplink message sent by the relay node, wherein, the uplink message carries at least one of the following parameters of the relay node relaying the management cell: paging cycle modification period coefficient, the relay cell and a macro cell radio frame offset.
13.根据权利要求12所述的方法,其特征在于,在所述基站接收所述上行消息之前,所述方法还包括:所述基站向所述中继节点发送下行消息,触发所述中继节点发送所述上行消息。 13. The method according to claim 12, wherein, prior to receiving the uplink message at the base station, the method further comprising: the base station transmits a downlink message to the relay node, the relay is triggered node sends the uplink message.
14. 一种下行子帧配置更新系统,其特征在于,包括:基站,用于向中继节点发送下行消息;所述中继节点,用于接收所述下行消息,并根据从所述下行消息中解析出的更新指示, 更新回程链路的下行子帧配置。 14. A downlink subframe configuration update system comprising: a base station for transmitting a downlink message to the relay node; the relay node for receiving the downlink message from the downlink message and according to parsing the update instruction, the update of the backhaul link downlink subframe configuration.
15. 一种中继节点,其特征在于,包括:接收模块,用于接收来自基站的下行消息;解析模块,用于从所述下行消息中解析出更新指示;更新模块,用于根据所述更新指示,更新回程链路的下行子帧配置。 15. A relay node comprising: a receiving module, configured to receive a downlink message from a base station; parsing module configured to parse the message from the downlink update indication; updating module, according to the update instruction, the update of the backhaul link downlink sub-frame configuration.
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