WO2012094928A1 - 一种传输上行协作数据的方法及系统 - Google Patents

一种传输上行协作数据的方法及系统 Download PDF

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Publication number
WO2012094928A1
WO2012094928A1 PCT/CN2011/083140 CN2011083140W WO2012094928A1 WO 2012094928 A1 WO2012094928 A1 WO 2012094928A1 CN 2011083140 W CN2011083140 W CN 2011083140W WO 2012094928 A1 WO2012094928 A1 WO 2012094928A1
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Prior art keywords
base station
data
uplink
information
cooperative
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PCT/CN2011/083140
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English (en)
French (fr)
Inventor
王昕�
王冠宙
陈思
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中兴通讯股份有限公司
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Publication of WO2012094928A1 publication Critical patent/WO2012094928A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • the present invention relates to a coordinated multipoint transmission technique, and more particularly to a method and system for transmitting uplink collaborative data. Background technique
  • LTE-Advanced Long-Term Evolution advance
  • LTE-Advanced retains the core of Long-Term Evolution (LTE). Based on this, a series of technologies are used to expand the frequency domain and airspace to improve spectrum utilization and increase system capacity.
  • FIG. 1 is a schematic diagram of a network structure using CoMP technology.
  • a CoMP measurement set is a cell set for reporting channel state/statistic information between itself and a user equipment (UE);
  • a CoMP collaboration set is some Geographically dispersed, directly or indirectly, a set of points that participate in the transmission of shared channel information with the UE;
  • a CoMP transmission point is a collection of points that are transmitting shared channel information with the UE (for the current main discussion of the classic scenario, each The cell has only one transmission point.
  • the serving cell inherits the concept in LTE and refers to a single cell that transmits physical downlink control channel allocation information.
  • Each of the cells participating in the coordinated transmission corresponds to one CoMP transmission point, and for the uplink CoMP, corresponds to one cooperative receiving point.
  • the coordinated cell and the serving cell may belong to the same base station (evolved NodeB, eNB), and all received data can be combined in the base station at this time. Joint Processing; they may also belong to different eNBs (Inter-eNB scenarios).
  • the cooperative base station also called the non-serving base station
  • the uplink cooperative data described in the invention is forwarded to the serving base station through a link (X2 interface) with the serving base station, so that all received data can be jointly processed in the serving base station.
  • the CoMP mode when the cooperative base station processes the received data (if configured) and forwards it through the X2 port, the processing time and the transmission delay of the X2 interface (average of about 10 ms) , and possibly more), the time at which the serving base station receives the data (uplink cooperation data) may be indeterminate, that is, the serving base station cannot perform the combined processing such as combining or decoding the forwarded data.
  • the main purpose of the present invention is to provide a method and system for transmitting uplink cooperative data.
  • the serving base station can correctly identify the UE and HARQ processes corresponding to the uplink cooperative data sent by the coordinated base station. Therefore, the subsequent processing of combining, decoding, and the like is smoothly performed.
  • a method for transmitting uplink collaborative data including:
  • the serving base station notifies the cooperative base station of the user equipment UE information associated with the uplink cooperative data and the hybrid automatic repeat request HARQ process information, or notifies the cooperative base station of the identifier of the UE information and the HARQ process information that can uniquely indicate the uplink cooperative data;
  • the coordinated base station After receiving the uplink cooperation data, the coordinated base station sends the received uplink cooperation data, the UE information, and the HARQ process information to the serving base station, or sends the received uplink cooperation data and the uniquely indicated uplink.
  • the UE information of the cooperation data and the identifier of the HARQ process information are transmitted to the serving base station.
  • Notifying the UE information and HARQ process information associated with the uplink cooperative data by the serving base station The cooperative base station is notified to the cooperative base station, or the identifier of the UE information and the HARQ process information that can uniquely indicate the uplink cooperation data is:
  • the cooperative base station receives the uplink cooperation data as follows: The cooperative base station receives the uplink data on the known resource.
  • the cooperative base station sends the received uplink cooperation data, the UE information, and the HARQ process information to the serving base station, or the received uplink cooperation data and the UE information capable of uniquely indicating uplink cooperation data. And sending the identifier of the HARQ process information to the serving base station as:
  • the cooperative base station forwards the uplink cooperative data, the UE information, and the HARQ process information through the X2 port, or forwards the uplink cooperative data and the identifier of the UE information and the HARQ process information that can uniquely indicate the uplink cooperative data through the X2 interface.
  • the method further includes: the cooperative base station performs local decoding processing on the uplink cooperative data.
  • the identifier of the UE information and the HARQ process information that can uniquely indicate the uplink cooperation data is generated by the UE identity identifier and the HARQ process ID according to a setting algorithm, or is a new variable.
  • the UE information is a cell radio network temporary identifier C-RNTI
  • the HARQ process information is a HARQ process number.
  • a system for transmitting uplink cooperative data including a serving base station and a cooperative base station; wherein the serving base station is configured to notify the cooperative base station of user equipment UE information and hybrid automatic repeat request HARQ process information associated with the uplink cooperative data, or And notifying the cooperative base station of the identifier of the UE information and the HARQ process information that can uniquely indicate the uplink cooperation data;
  • the cooperative base station is configured to: after receiving the uplink cooperation data, send the received uplink cooperation data, the UE information, and the HARQ process information to the serving base station, or send the received uplink cooperation data and The identifier of the UE information and the HARQ process information that can uniquely indicate the uplink cooperation data is sent to the serving base station.
  • the serving base station notifies the coordinated base station of the UE information and the HARQ process information associated with the uplink cooperative data, or notifies the cooperative base station of the identifier of the UE information and the HARQ process information that can uniquely indicate the uplink coordinated data:
  • the cooperative base station receives the uplink cooperation data as follows: The cooperative base station receives the uplink data on the known resource.
  • the cooperative base station sends the received uplink cooperation data, the UE information, and the HARQ process information to the serving base station, or the received uplink cooperation data and the UE information capable of uniquely indicating uplink cooperation data. And sending the identifier of the HARQ process information to the serving base station as:
  • the cooperative base station forwards the uplink cooperative data, the UE information, and the HARQ process information through the X2 port, or forwards the uplink cooperative data and the identifier of the UE information and the HARQ process information that can uniquely indicate the uplink cooperative data through the X2 interface.
  • the cooperative base station is further configured to perform local decoding processing on the uplink cooperative data before transmitting the uplink cooperative data to the serving base station.
  • the serving base station notifies the coordinated base station of the UE information and the HARQ process information associated with the uplink cooperative data, or UE information capable of uniquely indicating uplink cooperative data And the identifier of the HARQ process information is sent to the cooperative base station; after receiving the uplink cooperation data, the coordinated base station sends the received uplink cooperation data, the UE information, and the HARQ process information to the serving base station, or the received base station.
  • the uplink cooperation data and the identifier of the UE information and the HARQ process information that can uniquely indicate the uplink cooperation data are sent to the serving base station.
  • the serving base station can acquire the UE information and the HARQ process information corresponding to the uplink cooperation data, or obtain an identifier, and further obtain the uplink collaboration according to the identifier, while receiving the uplink collaboration data from the coordinated base station.
  • the UE information and the HARQ process information corresponding to the data so that the serving base station can correctly identify the uplink cooperation data forwarded by the X2 port, thereby ensuring smooth processing of subsequent combining and decoding.
  • FIG. 1 is a schematic diagram of a network structure using CoMP technology
  • FIG. 1 is a schematic flowchart of a method for transmitting uplink collaboration data according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a method for transmitting uplink collaboration data according to Embodiment 1 of the present invention
  • FIG. 4 is a flowchart of a method for transmitting uplink collaboration data according to Embodiment 2 of the present invention. schematic diagram. detailed description
  • An embodiment of the present invention is: the serving base station notifies the coordinated base station of the UE information and the HARQ process information associated with the uplink cooperative data, or notifies the cooperative base station of the identifier of the UE information and the HARQ process information that can uniquely indicate the uplink cooperative data; After receiving the uplink cooperation data, the base station sends the received uplink cooperation data, the UE information, and the HARQ process information to the serving base station, or the uplink cooperation data and the uniquely indicated uplink cooperation. The UE information of the data and the identifier of the HARQ process information are sent to the serving base station.
  • FIG. 1 is a schematic flowchart of a method for transmitting uplink collaboration data according to an embodiment of the present invention. As shown in FIG. 1 , the method includes:
  • Step 201 In the case where the uplink CoMP receiving mode is applied in the Inter-eNB scenario (ie, Cooperative reception is required and the cooperating cell and the serving cell belong to different base stations;), the serving base station notifies the coordinated base station of the UE information and the HARQ process information associated with the uplink cooperative data, or the UE information and the HARQ process that can uniquely indicate the uplink cooperative data. The identification of the information is notified to the cooperative base station.
  • the UE information refers to a UE identity identifier, such as a C-RNTI
  • the HARQ process information generally refers to a HARQ process ID ( HARQ Process — ID ) 0
  • the serving base station In order to enable the serving base station to correctly identify the uplink cooperative data forwarded by the coordinated base station for joint processing, preferably, the serving base station notifies the coordinated base station of the resource information required for the UE to send the uplink data, and carries the information in the notification information.
  • the UE information and the HARQ process information of the UE, or the identifier information carries an identifier (the identifier corresponding to the UE information and the HARQ process information of the UE;), to notify the cooperative base station to receive at the resource location
  • the UE and HARQ process number corresponding to the uplink data The UE and HARQ process number corresponding to the uplink data.
  • the identifier corresponding to the UE information and the HARQ process information involved in the cooperative reception may be generated by the UE identity identifier and the HARQ process ID according to the setting algorithm, or may be a new variable.
  • Step 202 After receiving the uplink cooperation data, the coordinated base station sends the received uplink cooperation data, the UE information, and the HARQ process information to the serving base station, or the received uplink cooperation data and the capability The identifier of the UE information and the HARQ process information indicating the uplink cooperation data is transmitted to the serving base station.
  • the cooperative base station receives the uplink data on the known resource (refers to the uplink data received on the resource required for the notified UE to send the uplink data)
  • the uplink cooperation data and the previously notified UE information are obtained.
  • the serving base station Corresponding to the HARQ process information, or corresponding to the previously notified identifier, and then forwarded to the serving base station, so that the serving base station can correctly identify the UE and the HARQ process corresponding to the received uplink cooperation data, thereby
  • the data is processed jointly.
  • the cooperative base station forwards the uplink cooperation data, the UE information, and the HARQ process information through the port 2, or forwards the uplink cooperation data and the identifier of the UE information and the HARQ process information that can uniquely indicate the uplink cooperation data through the X2 interface.
  • the uplink cooperative data is forwarded to the serving base station after the processing.
  • the embodiment of the present invention further provides a system for transmitting uplink cooperative data, including a serving base station and a cooperative base station;
  • the serving base station is configured to notify the cooperative base station of the user equipment UE information associated with the uplink cooperative data and the hybrid automatic repeat request HARQ process information, or to notify the UE that can uniquely indicate the uplink cooperative data and the identifier information of the HARQ process information.
  • the cooperative base station To the cooperative base station;
  • the cooperative base station is configured to: after receiving the uplink cooperation data, send the received uplink cooperation data, the UE information, and the HARQ process information to the serving base station, or send the received uplink cooperation data and The identifier of the UE information and the HARQ process information that can uniquely indicate the uplink cooperation data is sent to the serving base station.
  • the serving base station notifies the coordinated base station of the UE information and the HARQ process information associated with the uplink cooperative data, or notifies the cooperative base station of the identifier of the UE information and the HARQ process information that can uniquely indicate the uplink coordinated data:
  • the cooperative base station receives the uplink cooperation data as follows:
  • the coordinated base station receives the uplink data on the known resource.
  • the cooperative base station sends the received uplink cooperation data, the UE information, and the HARQ process information to the serving base station, or the received uplink cooperation data and the UE information capable of uniquely indicating uplink cooperation data. And sending the identifier of the HARQ process information to the serving base station as:
  • the cooperative base station forwards the uplink cooperative data, the UE information, and the HARQ process information through the X2 port, or forwards the uplink cooperative data and the identifier corresponding to the UE information and the HARQ process information that can uniquely indicate the uplink cooperation data through the X2 interface.
  • the cooperative base station is further configured to perform local decoding processing on the uplink cooperative data before transmitting the uplink cooperative data to the serving base station.
  • uplink cooperative data only the uplink data branch received and re-forwarded by the coordinated base station to the serving base station may be referred to as uplink cooperative data.
  • the serving base station needs to notify the cooperative base station of the resource information that the UE needs to send the uplink data.
  • the serving base station needs to notify the cooperative base station of the existing available identifier, such as the C-RNTI of the UE and the HARQ process number corresponding to the uplink data.
  • the cooperating base station receives the data on this resource, it associates it with the C-RNTK HARQ process number (HARQ Process-ID) and then forwards it to the serving base station.
  • HARQ Process-ID C-RNTK HARQ process number
  • FIG. 3 is a schematic flowchart of a method for transmitting uplink collaboration data according to Embodiment 1 of the present invention. As shown in FIG. 3, the method includes:
  • Step 301 Because the transmission delay of the X2 interface is long, after the CoMP mode is activated, the serving base station first negotiates the scheduled resource information with the cooperative base station. In this process, the serving base station will schedule a UE to use the uplink data to be occupied. The resource information is transmitted to the cooperative base station through the X2 interface, and the C-RNTI of the UE and the HARQ Process_ID corresponding to the data are notified in the message. It is transmitted to the cooperative base station.
  • Step 302 The serving base station sends an uplink grant (UL grant) to the UE on the radio link.
  • UL grant uplink grant
  • Step 303 The UE sends uplink data on the allocated resources according to the scheduling information in the UL grant, and the data may be synchronously received by the serving base station and the cooperative base station.
  • Step 304 The cooperative base station receives the uplink data on the known resource information, and associates the UE C-RNTI and the HARQ Process_ID corresponding to the data. If the cooperative base station is configured to perform local decoding and the like on the uplink cooperative data, the uplink cooperative data (uplink data) is forwarded to the serving base station on the X2 interface after the processing; otherwise, the direct forwarding is performed (whether processed or not, C- RNTI and Process_ID are unchanged).
  • the serving base station After receiving the data forwarded by the X2 port, the serving base station determines the UE and the HARQ process corresponding to the data by the C-RNTI and the HARQ Process_ID carried by the serving base station, thereby combining and decoding all the data in the process. deal with.
  • Example 2
  • the serving base station can generate a new identifier for the uplink data sent by the UE, and the identifier can uniquely indicate the UE and the HARQ process corresponding to the uplink data.
  • This identifier may be generated by the UE identity and the HARQ process number according to a set algorithm, or may be a new variable. Regardless of which algorithm is used for this identification, the premise is that the uniqueness of the UE identity and HARQ process needs to be guaranteed.
  • the serving base station transmits the resource information required for the UE to send the uplink data to the cooperative base station through the X2 interface
  • the identifier is carried in the notification message and transmitted to the cooperative base station.
  • the collaboration base receives the data on this resource, it associates it with the identity and forwards it to the serving base station.
  • FIG. 4 is a schematic flowchart of a method for transmitting uplink collaboration data according to Embodiment 2 of the present invention. As shown in FIG. 4, the method includes:
  • Step 401 Since the transmission delay of the X2 interface is long, when the CoMP mode is activated, The serving base station negotiates the scheduled resource information with the cooperative base station. In this process, the serving base station first notifies the coordinated base station of the resource information for scheduling the uplink data of the UE, and generates a new identifier for the uplink data sent by the UE, and the identifier can uniquely indicate the identity and data corresponding to the UE.
  • the HARQ process The serving base station carries the identifier in the notification message and transmits it to the cooperative base station on the X2 port.
  • Step 402 The serving base station sends the UL grant to the UE on the wireless link.
  • Step 403 The UE sends uplink data on the allocated resources according to the scheduling information in the UL grant, and the data may be synchronously received by the serving base station and the cooperative base station.
  • Step 404 The cooperative base station receives the uplink data on the known resource information, and associates the identifier corresponding to the data with the identifier. If the cooperative base station needs to perform local decoding and the like on the received data, it forwards the data (uplink data) to the serving base station on the X2 interface after processing; otherwise, it directly forwards (regardless of whether it is processed or not, the identifier does not change).
  • the serving base station After receiving the data forwarded by the X2 port, the serving base station can determine the UE and the HARQ process corresponding to the data by the identifier carried by the serving base station, so that all the data are combined and coded in the process.

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Description

一种传输上行协作数据的方法及系统 技术领域
本发明涉及协作多点传输技术， 尤其涉及一种传输上行协作数据的方 法及系统。 背景技术
为了满足日益增长的大带宽、 高速移动接入的需求， 第三代伙伴组织 计划 （Third Generation Partnership Projects , 3GPP ) 推出高级长期演进 ( Long-Term Evolution advance , LTE-Advanced )标准。 LTE- Advanced保留 了长期演进（ Long-Term Evolution, LTE ) 的核心， 并在此基础上采用了一 系列技术对频域、 空域进行扩充， 以达到提高频谱利用率、 增加系统容量 等目的。
协作多点 （ Coordinated Multi-Point , CoMP ) 传输与接收技术即 LTE-Advanced中的技术之一， 旨在在高负载和低负载的场景中扩大高数据 速率的覆盖范围、 增加小区边缘甚至整个系统的吞吐量。 图 1 为一种利用 CoMP技术的网络结构示意图， 如图 1所示， CoMP测量集合是上报自身与 用户设备（ User Equipment, UE )间的信道状态 /统计信息的小区集合； CoMP 协作集合是一些地理上分散的、直接或间接的参与与 UE间传输共享信道信 息的点的集合； CoMP传输点则是正在与 UE传输共享信道信息的点的集合 (对于当前主要讨论的经典场景来说， 每个小区只有一个传输点）， 服务小 区沿用了 LTE中的概念， 指传输物理下行控制信道分配信息的单一小区。
每个参与协作传输的小区分别对应一个 CoMP传输点， 对上行 CoMP 来说， 对应一个协作接收点。 协作小区与服务小区可能属于同一个基站 ( evolved NodeB , eNB ), 此时所有的接收数据都可以在该基站中进行联合 处理（ Joint Processing ); 它们也可能属于不同的 eNB ( Inter-eNB场景）， 在 这种场景下， 协作基站（也称为非服务基站） 就需要把自己接收到的 UE 上行数据（即是本发明中所述的上行协作数据）通过与服务基站间的链路 ( X2接口）转发给服务基站， 使得所有的接收数据都可以在服务基站中进 行联合处理。
但是， 如果在 Inter-eNB场景中应用了 CoMP模式， 当协作基站将接收 到的数据进行处理（如果配置了 )并通过 X2 口转发后， 经过处理时间及 X2接口的传输延迟（平均在 10ms左右， 可能更多）， 服务基站接收到该数 据（上行协作数据） 的时间可能是不定的， 也就是说， 服务基站无法将转 发来的数据进行合并或解码等联合处理。 发明内容
有鉴于此， 本发明的主要目的在于提供一种传输上行协作数据的方法 及系统， 在 Inter-eNB CoMP场景下， 服务基站能够正确识别协作基站发来 的上行协作数据所对应的 UE及 HARQ进程， 从而保证后续合并、 解码等 处理的顺利进行。
为达到上述目的， 本发明实施例的技术方案是这样实现的：
一种传输上行协作数据的方法， 包括：
服务基站将上行协作数据关联的用户设备 UE信息和混合自动重传请 求 HARQ进程信息通知给协作基站， 或者， 将能够唯一指示上行协作数据 的 UE信息和 HARQ进程信息的标识通知给协作基站；
协作基站接收到上行协作数据后， 将所述接收到的上行协作数据、 所 述 UE信息和 HARQ进程信息发送给服务基站， 或者， 将所述接收到的上 行协作数据与所述能够唯一指示上行协作数据的 UE信息和 HARQ进程信 息的标识发送给服务基站。
所述服务基站将上行协作数据关联的 UE信息和 HARQ进程信息通知 给协作基站， 或者， 将能够唯一指示上行协作数据的 UE信息和 HARQ进 程信息的标识通知给协作基站为：
服务基站在将 UE发送上行数据所需占用的资源信息通知给协作基站 的同时， 在该通知信息中携带所述上行协作数据关联的 UE信息和 HARQ 进程信息， 或者， 在该通知信息中携带能够唯一指示上行协作数据的 UE 信息和 HARQ进程信息的标识，
所述协作基站接收到上行协作数据为： 协作基站在已知的资源上接收 到上行数据。
所述协作基站将所述接收到的上行协作数据、 所述 UE信息和 HARQ 进程信息发送给服务基站， 或者， 将所述接收到的上行协作数据与所述能 够唯一指示上行协作数据的 UE信息和 HARQ进程信息的标识发送给服务 基站为：
所述协作基站通过 X2 口转发上行协作数据、 所述 UE信息和 HARQ 进程信息， 或者， 通过 X2口转发上行协作数据与能够唯一指示上行协作数 据的 UE信息和 HARQ进程信息的标识。
协作基站将上行协作数据发送给服务基站之前， 该方法还包括： 协作 基站对所述上行协作数据进行本地解码处理。
所述能够唯一指示上行协作数据的 UE信息和 HARQ进程信息的标识 由 UE身份标识和 HARQ进程号按照设定算法产生， 或者为一个新变量。
所述 UE信息为小区无线网络临时标识 C-RNTI,所述 HARQ进程信息 为 HARQ进程号。
一种传输上行协作数据的系统， 包括服务基站和协作基站； 其中， 所述服务基站，设置为将上行协作数据关联的用户设备 UE信息和混合 自动重传请求 HARQ进程信息通知给协作基站， 或者， 将能够唯一指示上 行协作数据的 UE信息和 HARQ进程信息的标识通知给协作基站； 所述协作基站， 设置为在接收到上行协作数据后， 将所述接收到的上 行协作数据、 所述 UE信息和 HARQ进程信息发送给服务基站， 或者， 将 所述接收到的上行协作数据与所述能够唯一指示上行协作数据的 UE信息 和 HARQ进程信息的标识发送给服务基站。
所述服务基站将上行协作数据关联的 UE信息和 HARQ进程信息通知 给协作基站， 或者， 将能够唯一指示上行协作数据的 UE信息和 HARQ进 程信息的标识通知给协作基站为：
服务基站在将 UE发送上行数据所需占用的资源信息通知给协作基站 的同时， 在该通知信息中携带所述上行协作数据关联的 UE信息和 HARQ 进程信息， 或者， 在该通知信息中携带能够唯一指示上行协作数据的 UE 信息和 HARQ进程信息的标识，
所述协作基站接收到上行协作数据为： 协作基站在已知的资源上接收 到上行数据。
所述协作基站将所述接收到的上行协作数据、 所述 UE信息和 HARQ 进程信息发送给服务基站， 或者， 将所述接收到的上行协作数据与所述能 够唯一指示上行协作数据的 UE信息和 HARQ进程信息的标识发送给服务 基站为：
所述协作基站通过 X2 口转发上行协作数据、 所述 UE信息和 HARQ 进程信息， 或者， 通过 X2口转发上行协作数据与能够唯一指示上行协作数 据的 UE信息和 HARQ进程信息的标识。
所述协作基站， 还设置为在将上行协作数据发送给服务基站之前， 对 所述上行协作数据进行本地解码处理。
本发明实施例所述的传输上行协作数据的方法及系统， 在协作多点接 收的 Inter-eNB场景中， 服务基站将上行协作数据关联的 UE信息和 HARQ 进程信息通知给协作基站，或者，将能够唯一指示上行协作数据的 UE信息 和 HARQ进程信息的标识通知给协作基站； 协作基站接收到上行协作数据 后， 将所述接收到的上行协作数据、 所述 UE信息和 HARQ进程信息发送 给服务基站， 或者， 将所述接收到的上行协作数据与所述能够唯一指示上 行协作数据的 UE信息和 HARQ进程信息的标识发送给服务基站。 通过本 发明， 服务基站能够在接收来自协作基站的上行协作数据的同时， 获取与 该上行协作数据对应的 UE信息和 HARQ进程信息， 或者， 获取一个标识， 并能根据该标识进一步获取该上行协作数据对应的 UE信息和 HARQ进程 信息， 所以， 服务基站能够正确识别 X2口转发来的上行协作数据， 从而能 够保证后续合并、 解码等处理的顺利进行。 附图说明
图 1为一种利用 CoMP技术的网络结构示意图；
图 1为本发明实施例一种传输上行协作数据的方法流程示意图； 图 3为本发明实施例 1传输上行协作数据的方法流程示意图； 图 4为发发明实施例 2传输上行协作数据的方法流程示意图。 具体实施方式
本发明的实施例是:服务基站将上行协作数据关联的 UE信息和 HARQ 进程信息通知给协作基站，或者，将能够唯一指示上行协作数据的 UE信息 和 HARQ进程信息的标识通知给协作基站； 协作基站接收到上行协作数据 后， 将所述接收到的上行协作数据、 所述 UE信息和 HARQ进程信息发送 给服务基站， 或者， 将所述接收到的上行协作数据与所述能够唯一指示上 行协作数据的 UE信息和 HARQ进程信息的标识发送给服务基站。
图 1为本发明实施例一种传输上行协作数据的方法流程示意图，如图 1 所示， 该方法包括：
步驟 201 : Inter-eNB场景中应用了上行 CoMP接收模式的情况下 （即 需要进行协作接收且协作小区与服务小区属于不同基站；)， 服务基站将上行 协作数据关联的 UE信息和 HARQ进程信息通知给协作基站， 或者， 将能 够唯一指示上行协作数据的 UE信息和 HARQ进程信息的标识通知给协作 基站。
这里， UE信息指 UE身份标识， 如 C-RNTI, HARQ进程信息一般指 HARQ进程号 （ HARQ Process— ID )0
为了使服务基站能够正确识别协作基站转发来的上行协作数据以进行 联合处理，优选的，服务基站在将 UE发送上行数据所需占用的资源信息通 知给协作基站的同时， 在该通知信息中携带所述 UE的 UE信息和 HARQ 进程信息， 或者， 在该通知信息中携带一个标识（所述标识与所述 UE 的 UE信息和 HARQ进程信息对应；)， 以告知协作基站在该资源位置上接收到 的上行数据所对应的 UE及 HARQ进程号。
需要说明的是， 与协作接收涉及的 UE信息和 HARQ进程信息对应的 标识可以是由 UE身份标识和 HARQ进程号按照设定算法产生的， 也可以 是一个新变量。
步驟 202: 协作基站接收到上行协作数据后， 将所述接收到的上行协作 数据、 所述 UE信息和 HARQ进程信息发送给服务基站， 或者， 将所述接 收到的上行协作数据与所述能够唯一指示上行协作数据的 UE 信息和 HARQ进程信息的标识发送给服务基站。
这里， 协作基站在已知的资源上接收到上行数据 （指在被通知的 UE 发送上行数据所需占用的资源上接收到的上行数据）后， 即将此上行协作 数据与之前被通知的 UE信息和 HARQ进程信息对应起来， 或者， 与之前 被通知的标识对应起来， 然后一并转发给服务基站， 使得服务基站能够正 确识别接收到的上行协作数据所对应的 UE和 HARQ进程， 从而对所有上 行数据进行联合处理。 优选的，协作基站通过 Χ2口转发上行协作数据、所述 UE信息和 HARQ 进程信息， 或者， 通过 X2口转发上行协作数据与所述能够唯一指示上行协 作数据的 UE信息和 HARQ进程信息的标识。
需要说明的是， 如果设置协作基站需要对上行协作数据进行本地解码 等处理， 则其在处理后再将上行协作数据转发给服务基站。
需要说明的是， 上述步驟是从某一次协作接收的角度出发， 对协作接 收过程进行描述。
本发明实施例还相应地提出一种传输上行协作数据的系统， 包括服务 基站和协作基站； 其中，
所述服务基站，设置为将上行协作数据关联的用户设备 UE信息和混合 自动重传请求 HARQ进程信息通知给协作基站， 或者， 将能够唯一指示上 行协作数据的 UE信息和 HARQ进程信息的标识通知给协作基站；
所述协作基站 , 设置为在接收到上行协作数据后 , 将所述接收到的上 行协作数据、 所述 UE信息和 HARQ进程信息发送给服务基站， 或者， 将 所述接收到的上行协作数据与所述能够唯一指示上行协作数据的 UE信息 和 HARQ进程信息的标识发送给服务基站。
所述服务基站将上行协作数据关联的 UE信息和 HARQ进程信息通知 给协作基站， 或者， 将能够唯一指示上行协作数据的 UE信息和 HARQ进 程信息的标识通知给协作基站为：
服务基站在将 UE发送上行数据所需占用的资源信息通知给协作基站 的同时， 在该通知信息中携带所述上行协作数据关联的 UE信息和 HARQ 进程信息， 或者， 在该通知信息中携带能够唯一指示上行协作数据的 UE 信息和 HARQ进程信息的标识，
所述协作基站接收到上行协作数据为： 协作基站在已知的资源上接收 到上行数据。 所述协作基站将所述接收到的上行协作数据、 所述 UE信息和 HARQ 进程信息发送给服务基站， 或者， 将所述接收到的上行协作数据与所述能 够唯一指示上行协作数据的 UE信息和 HARQ进程信息的标识发送给服务 基站为：
所述协作基站通过 X2 口转发上行协作数据、 所述 UE信息和 HARQ 进程信息， 或者， 通过 X2口转发上行协作数据与所述能够唯一指示上行协 作数据的 UE信息和 HARQ进程信息对应的标识。
所述协作基站， 还设置为在将上行协作数据发送给服务基站之前， 对 所述上行协作数据进行本地解码处理。
需要说明的是， 在本发明中， 是只有协作基站接收到、 再转发给服务 基站的那个上行数据分支， 才可称之为上行协作数据。
下面结合附图及具体实施例对本发明进行详细说明。 实施例 1
如果在 Inter-eNB场景中激活了 CoMP模式， 那么服务基站需要将 UE 发送上行数据所要占用的资源信息通知给协作基站。 同时， 服务基站需要 将现有可用的标识， 如该 UE的 C-RNTI和其上行数据对应的 HARQ进程 号一并通知给协作基站。 当协作基站在此资源上接收到数据后， 就将其与 C-RNTK HARQ进程号 （HARQ Process— ID )联系起来， 然后转发给服务 基站。
图 3为本发明实施例 1传输上行协作数据的方法流程示意图， 如图 3 所示， 该方法包括：
步驟 301： 因为 X2接口的传输时延较长，所以当激活了 CoMP模式后， 服务基站首先与协作基站协商调度的资源信息， 在这个过程中， 服务基站 将调度某 UE发送上行数据所要占用的资源信息通过 X2接口传输给协作基 站，并将 UE的 C-RNTI和该数据对应的 HARQ Process— ID在此通知消息中 一并在传输给协作基站。
步驟 302: 服务基站将上行授权（UpLink grant, UL grant )在无线链路 上发送给 UE。
步驟 303: UE按照 UL grant中的调度信息， 在分配的资源上发送上行 数据， 该数据可被服务基站和协作基站同步接收。
步驟 304: 协作基站在已知的资源信息上接收到上行数据， 就可以将对 应该数据的 UE C-RNTI和 HARQ Process— ID与之联系起来。如果设置了协 作基站需要对上行协作数据进行本地解码等处理， 则其在处理后将上行协 作数据（上行数据，）在 X2接口上转发给服务基站； 否则直接转发（不论 处理与否， C-RNTI与 Process— ID不变）。
服务基站在收到 X2 口上转发来的数据后， 可由其携带的 C-RNTI与 HARQ Process— ID确定该数据所对应的 UE和 HARQ进程， 从而在该进程 中对所有数据进行合并、 解码等联合处理。 实施例 2
如果在 Iner-eNB场景中激活了 CoMP模式，那么服务基站可以针对 UE 发送的上行数据产生一个新的标识， 该标识能够唯一的指示上行数据所对 应的 UE及 HARQ进程。 这个标识既可以是由 UE身份标识和 HARQ进程 号按照设定的算法产生， 也可以是一个新变量。 无论此标识用哪种算法产 生， 前提是需要保证针对 UE身份和 HARQ进程的唯一性。
服务基站在将 UE发送上行数据所需占用的资源信息通过 X2口传输给 协作基站时， 将该标识携带在通知消息中一并传输给协作基站。 当协作基 站在此资源上接收到数据， 就将其与标识联系起来， 然后转发给服务基站。
图 4为本发明实施例 2传输上行协作数据的方法流程示意图， 如图 4 所示， 该方法包括：
步驟 401 : 因为 X2接口的传输时延较长，所以当激活了 CoMP模式后， 服务基站与协作基站协商调度的资源信息。 在这个过程中， 服务基站首先 将调度某 UE发送上行数据的资源信息通知给协作基站，并针对该 UE发送 的这一上行数据产生一个新的标识，该标识能够唯一指示 UE的身份和数据 对应的 HARQ进程。 服务基站将此标识携带在通知消息中在 X2 口上一并 传输给协作基站。
步驟 402： 服务基站将 UL grant在无线链路上发送给 UE。
步驟 403: UE按照 UL grant中的调度信息， 在分配的资源上发送上行 数据， 该数据可被服务基站和协作基站同步接收。
步驟 404: 协作基站在已知的资源信息上接收到上行数据， 就可以将对 应该数据的标识与之联系起来。 如果设置了协作基站需要对接收数据进行 本地解码等处理， 则其在处理后将数据（上行数据，）在 X2接口上转发给 服务基站； 否则直接转发（不论处理与否， 标识不变）。
服务基站在收到 X2口上转发来的数据后，可由其携带的标识确定该数 据所对应的 UE和 HARQ进程， 从而在该进程中对所有数据进行合并、 编 码等联合处理。
当然， 本发明还可有其它多种实施例， 在不背离本发明精神及其实质 的情况下， 熟悉本领域的技术人员当可根据本发明作出各种相应的改变和 变形， 但这些相应的改变和变形都应属于本发明所附的权利要求的保护范 围。

Claims

权利要求书
1、 一种传输上行协作数据的方法， 其中， 该方法包括：
服务基站将上行协作数据关联的用户设备 UE信息和混合自动重传请 求 HARQ进程信息通知给协作基站， 或者， 将能够唯一指示上行协作数据 的 UE信息和 HARQ进程信息的标识通知给协作基站；
协作基站接收到上行协作数据后， 将所述接收到的上行协作数据、 所 述 UE信息和 HARQ进程信息发送给服务基站， 或者， 将所述接收到的上 行协作数据与所述能够唯一指示上行协作数据的 UE信息和 HARQ进程信 息的标识发送给服务基站。
2、 根据权利要求 1所述的方法， 其中， 所述服务基站将上行协作数据 关联的 UE信息和 HARQ进程信息通知给协作基站， 或者， 将能够唯一指 示上行协作数据的 UE信息和 HARQ进程信息的标识通知给协作基站为： 服务基站在将 UE发送上行数据所需占用的资源信息通知给协作基站 的同时， 在该通知信息中携带所述上行协作数据关联的 UE信息和 HARQ 进程信息， 或者， 在该通知信息中携带能够唯一指示上行协作数据的 UE 信息和 HARQ进程信息的标识，
所述协作基站接收到上行协作数据为： 协作基站在已知的资源上接收 到上行数据。
3、 根据权利要求 1所述的方法， 其中， 所述协作基站将所述接收到的 上行协作数据、 所述 UE信息和 HARQ进程信息发送给服务基站， 或者， 将所述接收到的上行协作数据与所述能够唯一指示上行协作数据的 UE信 息和 HARQ进程信息的标识发送给服务基站为：
所述协作基站通过 X2 口转发上行协作数据、 所述 UE信息和 HARQ 进程信息， 或者， 通过 X2口转发上行协作数据与能够唯一指示上行协作数 据的 UE信息和 HARQ进程信息的标识。
4、 根据权利要求 1至 3任一项所述的方法， 其中， 协作基站将上行协 作数据发送给服务基站之前， 该方法还包括： 协作基站对所述上行协作数 据进行本地解码处理。
5、 根据权利要求 1至 3任一项所述的方法， 其中， 所述能够唯一指示 上行协作数据的 UE信息和 HARQ进程信息的标识由 UE身份标识和 HARQ 进程号按照设定算法产生， 或者为一个新变量。
6、 根据权利要求 1至 3任一项所述的方法， 其中， 所述 UE信息为小 区无线网络临时标识 C-RNTI, 所述 HARQ进程信息为 HARQ进程号。
7、 一种传输上行协作数据的系统， 其中， 该系统包括服务基站和协作 基站； 其中，
所述服务基站，设置为将上行协作数据关联的用户设备 UE信息和混合 自动重传请求 HARQ进程信息通知给协作基站， 或者， 将能够唯一指示上 行协作数据的 UE信息和 HARQ进程信息的标识通知给协作基站；
所述协作基站， 设置为在接收到上行协作数据后， 将所述接收到的上 行协作数据、 所述 UE信息和 HARQ进程信息发送给服务基站， 或者， 将 所述接收到的上行协作数据与所述能够唯一指示上行协作数据的 UE信息 和 HARQ进程信息的标识发送给服务基站。
8、 根据权利要求 7所述的系统， 其中， 所述服务基站将上行协作数据 关联的 UE信息和 HARQ进程信息通知给协作基站， 或者， 将能够唯一指 示上行协作数据的 UE信息和 HARQ进程信息的标识通知给协作基站为： 服务基站在将 UE发送上行数据所需占用的资源信息通知给协作基站 的同时， 在该通知信息中携带所述上行协作数据关联的 UE信息和 HARQ 进程信息， 或者， 在该通知信息中携带能够唯一指示上行协作数据的 UE 信息和 HARQ进程信息的标识，
所述协作基站接收到上行协作数据为： 协作基站在已知的资源上接收 到上行数据。
9、 根据权利要求 7所述的系统， 其中， 所述协作基站将所述接收到的 上行协作数据、 所述 UE信息和 HARQ进程信息发送给服务基站， 或者， 将所述接收到的上行协作数据与所述能够唯一指示上行协作数据的 UE信 息和 HARQ进程信息的标识发送给服务基站为：
所述协作基站通过 X2 口转发上行协作数据、 所述 UE信息和 HARQ 进程信息， 或者， 通过 X2口转发上行协作数据与能够唯一指示上行协作数 据的 UE信息和 HARQ进程信息的标识。
10、 根据权利要求 7至 9任一项所述的系统， 其中， 所述协作基站， 还设置为在将上行协作数据发送给服务基站之前， 对所述上行协作数据进 行本地解码处理。
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