WO2012113259A1 - Distributed wired interface data transmission method and system based on cooperative multi-point - Google Patents

Distributed wired interface data transmission method and system based on cooperative multi-point Download PDF

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Publication number
WO2012113259A1
WO2012113259A1 PCT/CN2011/084240 CN2011084240W WO2012113259A1 WO 2012113259 A1 WO2012113259 A1 WO 2012113259A1 CN 2011084240 W CN2011084240 W CN 2011084240W WO 2012113259 A1 WO2012113259 A1 WO 2012113259A1
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Prior art keywords
enodeb
service
core network
wired interface
primary
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PCT/CN2011/084240
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French (fr)
Chinese (zh)
Inventor
郑卫民
樊荣
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中兴通讯股份有限公司
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Publication of WO2012113259A1 publication Critical patent/WO2012113259A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points

Definitions

  • the present invention relates to the establishment of a service bearer and a service data transmission technology in a Long Term Evolution Advanced (LTE A) system, and more particularly to a distributed cable interface data transmission method and system based on multipoint cooperation.
  • LTE A Long Term Evolution Advanced
  • a user equipment In a Long Term Evolution (LTE) system, a user equipment (UE) needs a core network and an Evolved Node B (eNodeB) to establish a wired interface service channel for the UE.
  • eNodeB Evolved Node B
  • the specific process is: a mobile management equipment (MME) sends an Evolved Radio Access Bear (E-RAB) setup request message to the eNodeB, where the E-RAB is established.
  • the request message carries the service information to be established, and the uplink address information allocated by the Signaling Gateway (SGW) for the service; after receiving the E-RAB setup request message, the eNodeB returns an E-RAB setup response to the MME.
  • the message, the E-RAB setup response message carries the successfully established service identifier, and the downlink address information allocated by the eNodeB for the service.
  • the main object of the present invention is to provide a distributed based on multi-point cooperation.
  • the line interface data transmission method and system can effectively solve the problem of establishing service channels when multiple CoNode transmission technologies are introduced in the LTE-A system, involving multiple eNodeBs.
  • the present invention provides a distributed wired interface data transmission method based on multi-point cooperation, including:
  • the core network initiates a service bearer setup request to the primary evolved base station (eNodeB) through the wired interface S1; the primary eNodeB communicates with the one through the wired interface X2
  • the multiple eNodeBs interact to establish a service bearer.
  • the primary eNodeB returns a service bearer setup response to the core network through the wired interface S1, and completes the service bearer setup.
  • the service data between the core network and the UE is transmitted through the primary eNodeB and the coordinated eNodeB. .
  • the service bearer setup request is specifically a service bearer setup request message, where the message carries the service information that needs to be established, and the uplink address information that the core network allocates for the service.
  • the primary eNodeB interacts with one or more cooperative eNodeBs through the wired interface X2 to establish a service bearer, including: the primary eNodeB sends a service bearer setup request message to the cooperative eNodeB through the wired interface X2, where the setup request message carries the service The information and the uplink address information allocated by the core network for the service; the coordinated eNodeB responds to the service bearer setup response message to the primary eNodeB through the wired interface X2, where the response message carries the service identifier and the transport layer downlink allocated by the coordinated eNodeB for the service Address information.
  • the service bearer setup response is specifically a service bearer setup response message, where the response message carries the service identifier, and the transport layer downlink address information allocated by the primary eNodeB and the coordinated eNodeB for the service.
  • the service data between the core network and the UE is transmitted through the primary eNodeB and the coordinated eNodeB, and includes: in the uplink direction, the primary eNodeB and the coordinated eNodeB receive the service data sent by the UE, and the primary eNodeB and the coordinated eNodeB
  • the received service data is sent to the core network for the uplink address allocated by the service through the wired interface S1.
  • the core network sends the downlink service data to the primary eNodeB and the collaboration through the wired interface S1.
  • the eNodeB then sends the respective received service data to the UE under the unified scheduling of the primary eNodeB.
  • the present invention also provides a distributed wired interface data transmission system based on multipoint cooperation, the system comprising: a primary eNodeB, one or more collaborative eNodeBs, and a core network, wherein the primary eNodeB is configured to pass a wired interface X2 interacts with one or more cooperative eNodeBs to establish a service bearer, and returns a service bearer setup response to the core network through the wired interface S1, and provides an interactive transmission service for the service data between the core network and the UE;
  • the cooperative eNodeB is configured to provide an interactive transmission service for service data between the core network and the UE;
  • the core network is configured to initiate a service bearer setup request to the primary eNodeB through the wired interface S1, receive a service bearer setup response returned by the primary eNodeB, and complete the service bearer setup.
  • the service bearer setup request sent by the core network is specifically a service bearer setup request message, where the message carries the service information to be established and the uplink address information allocated by the core network for the service.
  • the primary eNodeB interacts with one or more cooperative eNodeBs through the wired interface X2 to establish a service, and includes: the primary eNodeB sends a service bearer setup request message to the cooperative eNodeB through the wired interface X2, where the setup request message is sent. Carrying the service information and the uplink address information allocated by the core network for the service; the coordinated eNodeB responds to the service bearer setup response message to the primary eNodeB through the wired interface X2, where the response message carries the service identifier and the transmission allocated by the coordinated eNodeB for the service Layer downlink address information.
  • the service bearer setup response returned by the primary eNodeB to the core network is specifically a service bearer setup response message, where the response message carries the service identifier and the transport layer downlink address information allocated by the primary eNodeB and the coordinated eNodeB for the service.
  • the primary eNodeB and the coordinated eNodeB provide an interactive transmission service for the service data between the core network and the UE, including: in the uplink direction, the primary eNodeB and the coordinated eNodeB receive
  • the service data sent by the UE is sent by the primary eNodeB and the coordinated eNodeB to the uplink address of the core network for the service through the wired interface S1.
  • the core network sends the downlink service data through the wired interface S1.
  • the core network initiates a service load establishment request to the primary eNodeB through the wired interface S1; the primary eNodeB interacts with one or more cooperative eNodeBs through the wired interface X2 Establishing a service bearer; the primary eNodeB returns a service bearer setup response to the core network through the wired interface S1, and completes the service bearer establishment; the service data between the core network and the UE is transmitted through the primary eNodeB and the coordinated eNodeB, and can be implemented in the LTE- After the introduction of the CoMP transmission technology in the A system, the establishment of the service channel and data transmission of multiple eNodeBs are involved.
  • FIG. 1 is a schematic structural diagram of a system after a multipoint cooperation technology is introduced in an LTE-A system according to the present invention
  • FIG. 1 is a schematic flowchart of a method for data transmission of a distributed wired interface based on multipoint cooperation according to the present invention
  • FIG. 3 is a schematic structural diagram of a distributed wired interface data transmission system based on multipoint cooperation according to the present invention. detailed description
  • FIG. 1 is a schematic structural diagram of a system after a multipoint cooperation technology is introduced in an LTE-A system according to the present invention.
  • the system includes: a UE11, an MME/SGW12, a primary eNodeB13, a cooperative eNodeB 14, and a cooperative eNodeB 15.
  • a wireless air interface XI interface is between the UE 11 and the three eNodeBs, and a wired interface is between the primary eNodeB 13, the cooperative eNodeB 14, and the cooperative eNodeB 15.
  • the core network MME/SGW12 communicates through the wired interface SI and the primary eNodeB 13, and the cooperative eNodeB 14 and the cooperative eNodeB 15.
  • the core network initiates a service bearer setup request to the primary eNodeB through the wired interface S1; the primary eNodeB interacts with one or more cooperative eNodeBs through the wired interface X2 to establish a service bearer; the primary eNodeB passes the wired interface S1 to the core
  • the network returns a service bearer setup response, and completes the service bearer setup.
  • the service data between the core network and the UE is transmitted through the primary eNodeB and the coordinated eNodeB.
  • FIG. 1 is a schematic flowchart of a method for data transmission of a distributed wired interface based on multi-point cooperation according to the present invention. As shown in FIG. 2, the method includes the following steps:
  • Step 201 The core network initiates a service bearer setup request to the primary eNodeB through the wired interface S1.
  • the core network MME/SGW sends a service bearer setup request message to the primary eNodeB through the wired interface S1, where the request message carries the service information to be established and the uplink address information allocated by the SGW for the service.
  • Step 202 The primary eNodeB interacts with one or more collaborative eNodeBs through the wired interface X2 to establish a service.
  • the primary eNodeB sends a CoMP service bearer setup request message to the cooperative eNodeB through the wired interface X2, where the setup request message carries the service information to be established and the uplink address information allocated by the SGW for the service; the collaborative eNodeB passes the wired interface X2. And responding to the CoMP service bearer setup response message to the primary eNodeB, where the response message carries the service identifier and the transport layer downlink address information allocated by the coordinated eNodeB for the service.
  • Step 203 The primary eNodeB returns a service bearer establishment response to the core network through the wired interface S1, and completes the service establishment.
  • the primary eNodeB returns a service bearer setup response to the core network through the wired interface S1.
  • the message carries the service identifier and the transport layer downlink address information allocated by the primary eNodeB and the coordinated eNodeB for the service.
  • the primary eNodeB and the coordinated eNodeB receive the service data sent by the UE, and the primary eNodeB and the coordinated eNodeB send the received service data to the SGW for the uplink address allocated by the service through the wired interface S1.
  • the SGW sends the downlink service data to the primary eNodeB and the coordinated eNodeB through the wired interface S1.
  • each eNodeB sends the received service data to the UE for the downlink address of the service allocation. .
  • the primary eNodeB 31 sends a CoMP service bearer setup request message to the cooperative eNodeB 32 through the wired interface X2, where the setup request message carries the service information to be established and the uplink address information allocated by the SGW for the service; the collaborative eNodeB32 passes the wired interface X2. And responding to the CoMP service bearer setup response message to the primary eNodeB 31, where the response message carries the service identifier and the transport layer downlink address information allocated by the coordinated eNodeB for the service.
  • the primary eNodeB 31 provides an interactive transmission service for service data between the core network 33 and the UE.
  • the service includes: In the uplink direction, the primary eNodeB 31 receives the service data sent by the UE, and the primary eNodeB 31 sends the received service data to the SGW for the uplink address allocated by the service through the wired interface S1. In the downlink direction, the SGW sends the downlink service data to the primary eNodeB 31 through the wired interface S1, and then the primary eNodeB 31 sends the received service data to the UE for the downlink address allocated by the service.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Disclosed is a distributed wired interface data transmission method based on cooperative multi-point, wherein the method includes: the core network initiates a service bearer establishment request toward the main evolved NodeB (eNodeB) via a wired interface S1; the main eNodeB interacts with one or more cooperative eNodeBs via a wired interface X2, and establishes a service bearer; the main eNodeB feeds back a service bearer establishment response to the core network via the wired interface S1, and completes the establishment of the service bearer; and the service data between the core network and user equipment is reciprocally transmitted via the main eNodeB and the cooperative eNodeBs. A distributed wired interface data transmission system based on cooperative multi-point is also disclosed, and by way of the method and system, the establishment of service channels and data transmission involving a plurality of eNodeBs can be realized after the cooperative multi-point transmission technology is introduced into the advanced long term evolution system.

Description

一种基于多点协作的分布式有线接口数据传输方法及*** 技术领域  Distributed wired interface data transmission method and system based on multi-point cooperation
本发明涉及高级长期演进 ( Long Term Evolution Advanced, LTE A )系 统中业务承载的建立和业务数据的传输技术， 特别是指一种基于多点协作 的分布式有线接口数据传输方法及***。 背景技术  The present invention relates to the establishment of a service bearer and a service data transmission technology in a Long Term Evolution Advanced (LTE A) system, and more particularly to a distributed cable interface data transmission method and system based on multipoint cooperation. Background technique
在长期演进 ( Long Term Evolution, LTE ) ***中， 用户设备（User Equipment, UE )在进行上下行业务时， 需要核心网和演进型基站（ Evolved Node B, eNodeB ) 为 UE建立有线接口业务通道。 在现有技术中， 具体的 流程是： 移动管理实体（Mobile Management Equipment, MME )向 eNodeB 发送演进型无线接入承载（ Evolved Radio Access Bear, E-RAB )建立请求 消息， 所述 E-RAB建立请求消息中携带需要建立的业务信息、 以及信令网 关（ Signaling Gateway, SGW ) 为该业务分配的上行地址信息； eNodeB接 收到所述 E-RAB建立请求消息后 ,向 MME返回 E-RAB建立响应消息 ,所 述 E-RAB建立响应消息中携带成功建立的业务标识、 以及 eNodeB为该业 务分配的下行地址信息。  In a Long Term Evolution (LTE) system, a user equipment (UE) needs a core network and an Evolved Node B (eNodeB) to establish a wired interface service channel for the UE. In the prior art, the specific process is: a mobile management equipment (MME) sends an Evolved Radio Access Bear (E-RAB) setup request message to the eNodeB, where the E-RAB is established. The request message carries the service information to be established, and the uplink address information allocated by the Signaling Gateway (SGW) for the service; after receiving the E-RAB setup request message, the eNodeB returns an E-RAB setup response to the MME. The message, the E-RAB setup response message carries the successfully established service identifier, and the downlink address information allocated by the eNodeB for the service.
但是，在 LTE A***中引入多点协作（ Cooperative Multi-Point, CoMP ) 传输技术后，会出现多个小区为一个 UE提供服务的情况， 并且这些小区可 能分属不同的 eNodeB, 因此业务通道的建立将涉及到多个 eNodeB。 但是， 在现有技术中针对这个问题并没有相应的解决方案。 发明内容  However, after the Cooperative Multi-Point (CoMP) transmission technology is introduced in the LTE A system, multiple cells may be served for one UE, and these cells may belong to different eNodeBs, so the service channel The establishment will involve multiple eNodeBs. However, there is no corresponding solution to this problem in the prior art. Summary of the invention
有鉴于此， 本发明的主要目的在于提供一种基于多点协作的分布式有 线接口数据传输方法及***， 能够有效解决在 LTE— A***中引入 CoMP传 输技术后， 涉及到多个 eNodeB时的业务通道建立问题。 In view of this, the main object of the present invention is to provide a distributed based on multi-point cooperation. The line interface data transmission method and system can effectively solve the problem of establishing service channels when multiple CoNode transmission technologies are introduced in the LTE-A system, involving multiple eNodeBs.
为解决上述技术问题， 本发明的技术方案是这样实现的：  In order to solve the above technical problem, the technical solution of the present invention is implemented as follows:
本发明提供了一种基于多点协作的分布式有线接口数据传输方法， 包 括： 核心网通过有线接口 S1向主演进型基站（ eNodeB )发起业务承载建立 请求； 主 eNodeB通过有线接口 X2与一个或多个协作 eNodeB进行交互， 建立业务承载； 主 eNodeB通过有线接口 S1向核心网返回业务承载建立响 应， 完成业务承载建立； 核心网和 UE之间的业务数据， 经过主 eNodeB和 协作 eNodeB进行交互传输。  The present invention provides a distributed wired interface data transmission method based on multi-point cooperation, including: The core network initiates a service bearer setup request to the primary evolved base station (eNodeB) through the wired interface S1; the primary eNodeB communicates with the one through the wired interface X2 The multiple eNodeBs interact to establish a service bearer. The primary eNodeB returns a service bearer setup response to the core network through the wired interface S1, and completes the service bearer setup. The service data between the core network and the UE is transmitted through the primary eNodeB and the coordinated eNodeB. .
其中， 所述业务承载建立请求具体为业务承载建立请求消息， 所述消 息中携带需要建立的业务信息、 以及核心网为该业务分配的上行地址信息。  The service bearer setup request is specifically a service bearer setup request message, where the message carries the service information that needs to be established, and the uplink address information that the core network allocates for the service.
其中， 所述主 eNodeB通过有线接口 X2与一个或多个协作 eNodeB进 行交互，建立业务承载， 包括： 主 eNodeB通过有线接口 X2向协作 eNodeB 发送业务承载建立请求消息， 所述建立请求消息中携带业务信息、 以及核 心网为该业务分配的上行地址信息； 协作 eNodeB通过有线接口 X2回应业 务承载建立响应消息给主 eNodeB , 所述响应消息中携带业务标识、 以及协 作 eNodeB为该业务分配的传输层下行地址信息。  The primary eNodeB interacts with one or more cooperative eNodeBs through the wired interface X2 to establish a service bearer, including: the primary eNodeB sends a service bearer setup request message to the cooperative eNodeB through the wired interface X2, where the setup request message carries the service The information and the uplink address information allocated by the core network for the service; the coordinated eNodeB responds to the service bearer setup response message to the primary eNodeB through the wired interface X2, where the response message carries the service identifier and the transport layer downlink allocated by the coordinated eNodeB for the service Address information.
其中， 所述业务承载建立响应具体为业务承载建立响应消息， 所述响 应消息中携带业务标识、 以及主 eNodeB和协作 eNodeB为该业务分配的传 输层下行地址信息。  The service bearer setup response is specifically a service bearer setup response message, where the response message carries the service identifier, and the transport layer downlink address information allocated by the primary eNodeB and the coordinated eNodeB for the service.
其中， 所述核心网和 UE 之间的业务数据， 经过主 eNodeB 和协作 eNodeB进行交互传输， 包括： 上行方向上， 主 eNodeB和协作 eNodeB收 到 UE发送的业务数据， 由主 eNodeB和协作 eNodeB将接收到的业务数据 通过有线接口 S1向核心网针对业务分配的上行地址发送； 下行方向上， 核 心网会将下行业务数据通过有线接口 S1 分别发送给主 eNodeB 和协作 eNodeB , 然后在主 eNodeB的统一调度下，各 eNodeB将各自接收到的业务 数据发送给 UE。 The service data between the core network and the UE is transmitted through the primary eNodeB and the coordinated eNodeB, and includes: in the uplink direction, the primary eNodeB and the coordinated eNodeB receive the service data sent by the UE, and the primary eNodeB and the coordinated eNodeB The received service data is sent to the core network for the uplink address allocated by the service through the wired interface S1. In the downlink direction, the core network sends the downlink service data to the primary eNodeB and the collaboration through the wired interface S1. The eNodeB then sends the respective received service data to the UE under the unified scheduling of the primary eNodeB.
本发明还提供了一种基于多点协作的分布式有线接口数据传输***， 所述***包括： 主 eNodeB、 一个或多个协作 eNodeB和核心网， 其中， 所述主 eNodeB , 用于通过有线接口 X2与一个或多个协作 eNodeB进 行交互建立业务承载， 通过有线接口 S1向核心网返回业务承载建立响应， 为核心网和 UE之间的业务数据提供交互传输服务；  The present invention also provides a distributed wired interface data transmission system based on multipoint cooperation, the system comprising: a primary eNodeB, one or more collaborative eNodeBs, and a core network, wherein the primary eNodeB is configured to pass a wired interface X2 interacts with one or more cooperative eNodeBs to establish a service bearer, and returns a service bearer setup response to the core network through the wired interface S1, and provides an interactive transmission service for the service data between the core network and the UE;
所述协作 eNodeB , 用于为核心网和 UE之间的业务数据提供交互传输 服务；  The cooperative eNodeB is configured to provide an interactive transmission service for service data between the core network and the UE;
所述核心网， 用于通过有线接口 S1向主 eNodeB发起业务承载建立请 求， 接收主 eNodeB返回的业务承载建立响应， 完成业务承载建立。  The core network is configured to initiate a service bearer setup request to the primary eNodeB through the wired interface S1, receive a service bearer setup response returned by the primary eNodeB, and complete the service bearer setup.
其中， 所述核心网发送的业务承载建立请求具体为业务承载建立请求 消息， 所述消息中携带需要建立的业务信息、 以及核心网为该业务分配的 上行地址信息。  The service bearer setup request sent by the core network is specifically a service bearer setup request message, where the message carries the service information to be established and the uplink address information allocated by the core network for the service.
其中， 所述主 eNodeB通过有线接口 X2与一个或多个协作 eNodeB进 行交互，建立业务 7|载， 包括： 主 eNodeB通过有线接口 X2向协作 eNodeB 发送业务承载建立请求消息， 所述建立请求消息中携带业务信息、 以及核 心网为该业务分配的上行地址信息； 协作 eNodeB通过有线接口 X2回应业 务承载建立响应消息给主 eNodeB , 所述响应消息中携带业务标识、 以及协 作 eNodeB为该业务分配的传输层下行地址信息。  The primary eNodeB interacts with one or more cooperative eNodeBs through the wired interface X2 to establish a service, and includes: the primary eNodeB sends a service bearer setup request message to the cooperative eNodeB through the wired interface X2, where the setup request message is sent. Carrying the service information and the uplink address information allocated by the core network for the service; the coordinated eNodeB responds to the service bearer setup response message to the primary eNodeB through the wired interface X2, where the response message carries the service identifier and the transmission allocated by the coordinated eNodeB for the service Layer downlink address information.
其中，所述主 eNodeB向核心网返回的业务承载建立响应具体为业务承 载建立响应消息， 所述响应消息中携带业务标识、 以及主 eNodeB 和协作 eNodeB为该业务分配的传输层下行地址信息。  The service bearer setup response returned by the primary eNodeB to the core network is specifically a service bearer setup response message, where the response message carries the service identifier and the transport layer downlink address information allocated by the primary eNodeB and the coordinated eNodeB for the service.
其中， 所述主 eNodeB和协作 eNodeB为核心网和 UE之间的业务数据 提供交互传输服务， 包括： 上行方向上， 主 eNodeB和协作 eNodeB 收到 UE发送的业务数据， 由主 eNodeB和协作 eNodeB将接收到的业务数据通 过有线接口 S1向核心网针对业务分配的上行地址发送； 下行方向上， 核心 网会将下行业务数据通过有线接口 S1 分别发送给主 eNodeB 和协作 eNodeB , 然后在主 eNodeB的统一调度下，各 eNodeB将各自接收到的业务 数据发送给 UE。 The primary eNodeB and the coordinated eNodeB provide an interactive transmission service for the service data between the core network and the UE, including: in the uplink direction, the primary eNodeB and the coordinated eNodeB receive The service data sent by the UE is sent by the primary eNodeB and the coordinated eNodeB to the uplink address of the core network for the service through the wired interface S1. In the downlink direction, the core network sends the downlink service data through the wired interface S1. The master eNodeB and the cooperating eNodeB, and then under the unified scheduling of the master eNodeB, each eNodeB sends the received service data to the UE.
本发明所提供的基于多点协作的分布式有线接口数据传输方法及系 统，核心网通过有线接口 S1向主 eNodeB发起业务 载建立请求；主 eNodeB 通过有线接口 X2与一个或多个协作 eNodeB进行交互， 建立业务承载； 主 eNodeB通过有线接口 S1向核心网返回业务承载建立响应， 完成业务承载 建立； 核心网和 UE之间的业务数据， 经过主 eNodeB和协作 eNodeB进行 交互传输， 能够实现在 LTE— A***中引入 CoMP传输技术后， 涉及到多个 eNodeB的业务通道的建立和数据传输。 附图说明  The distributed network interface data transmission method and system based on multi-point cooperation provided by the present invention, the core network initiates a service load establishment request to the primary eNodeB through the wired interface S1; the primary eNodeB interacts with one or more cooperative eNodeBs through the wired interface X2 Establishing a service bearer; the primary eNodeB returns a service bearer setup response to the core network through the wired interface S1, and completes the service bearer establishment; the service data between the core network and the UE is transmitted through the primary eNodeB and the coordinated eNodeB, and can be implemented in the LTE- After the introduction of the CoMP transmission technology in the A system, the establishment of the service channel and data transmission of multiple eNodeBs are involved. DRAWINGS
图 1为本发明 LTE— A***中引入多点协作技术后***的结构示意图； 图 1 为本发明一种基于多点协作的分布式有线接口数据传输方法流程 示意图；  1 is a schematic structural diagram of a system after a multipoint cooperation technology is introduced in an LTE-A system according to the present invention; FIG. 1 is a schematic flowchart of a method for data transmission of a distributed wired interface based on multipoint cooperation according to the present invention;
图 3 为本发明一种基于多点协作的分布式有线接口数据传输***结构 示意图。 具体实施方式  FIG. 3 is a schematic structural diagram of a distributed wired interface data transmission system based on multipoint cooperation according to the present invention. detailed description
为了更好的理解本发明， 首先介绍一下 LTE— A***中引入多点协作技 术后的***结构。 图 1为本发明 LTE— A***中引入多点协作技术后***的 结构示意图，如图 1所示，所述***包括： UE11、 MME/SGW12、主 eNodeB13、 协作 eNodeB 14和协作 eNodeB15。 UE11和三个 eNodeB之间均为无线空口 XI接口， 主 eNodeB13、 协作 eNodeB 14和协作 eNodeBl 5之间为有线接口 X2 , 核心网 MME/SGW12 通过有线接口 SI 和主 eNodeB13、 以及协作 eNodeB 14和协作 eNodeB 15进行通信。 In order to better understand the present invention, first introduce the system structure after introducing multi-point cooperation technology in the LTE-A system. FIG. 1 is a schematic structural diagram of a system after a multipoint cooperation technology is introduced in an LTE-A system according to the present invention. As shown in FIG. 1, the system includes: a UE11, an MME/SGW12, a primary eNodeB13, a cooperative eNodeB 14, and a cooperative eNodeB 15. A wireless air interface XI interface is between the UE 11 and the three eNodeBs, and a wired interface is between the primary eNodeB 13, the cooperative eNodeB 14, and the cooperative eNodeB 15. X2, the core network MME/SGW12 communicates through the wired interface SI and the primary eNodeB 13, and the cooperative eNodeB 14 and the cooperative eNodeB 15.
本发明的基本思想是： 核心网通过有线接口 S1向主 eNodeB发起业务 载建立请求； 主 eNodeB通过有线接口 X2与一个或多个协作 eNodeB进 行交互， 建立业务承载； 主 eNodeB通过有线接口 S1向核心网返回业务承 载建立响应， 完成业务承载建立； 核心网和 UE之间的业务数据， 经过主 eNodeB和协作 eNodeB进行交互传输。  The basic idea of the present invention is: The core network initiates a service bearer setup request to the primary eNodeB through the wired interface S1; the primary eNodeB interacts with one or more cooperative eNodeBs through the wired interface X2 to establish a service bearer; the primary eNodeB passes the wired interface S1 to the core The network returns a service bearer setup response, and completes the service bearer setup. The service data between the core network and the UE is transmitted through the primary eNodeB and the coordinated eNodeB.
下面结合附图和具体实施例对本发明的技术方案进一步详细阐述。 图 1 为本发明一种基于多点协作的分布式有线接口数据传输方法流程 示意图， 如图 2所示， 所述方法包括以下步驟：  The technical solutions of the present invention are further elaborated below in conjunction with the accompanying drawings and specific embodiments. FIG. 1 is a schematic flowchart of a method for data transmission of a distributed wired interface based on multi-point cooperation according to the present invention. As shown in FIG. 2, the method includes the following steps:
步驟 201 , 核心网通过有线接口 S1向主 eNodeB发起业务承载建立请 求；  Step 201: The core network initiates a service bearer setup request to the primary eNodeB through the wired interface S1.
具体的，核心网 MME/SGW通过有线接口 S1向主 eNodeB发送业务承 载建立请求消息， 所述请求消息中携带需要建立的业务信息、 以及 SGW为 该业务分配的上行地址信息。  Specifically, the core network MME/SGW sends a service bearer setup request message to the primary eNodeB through the wired interface S1, where the request message carries the service information to be established and the uplink address information allocated by the SGW for the service.
步驟 202 , 主 eNodeB通过有线接口 X2与一个或多个协作 eNodeB进 行交互， 建立业务^载；  Step 202: The primary eNodeB interacts with one or more collaborative eNodeBs through the wired interface X2 to establish a service.
具体的， 主 eNodeB通过有线接口 X2向协作 eNodeB发送 CoMP业务 承载建立请求消息， 所述建立请求消息中携带需要建立的业务信息、 以及 SGW为该业务分配的上行地址信息； 协作 eNodeB通过有线接口 X2回应 CoMP业务承载建立响应消息给主 eNodeB ,所述响应消息中携带业务标识、 以及协作 eNodeB为该业务分配的传输层下行地址信息。  Specifically, the primary eNodeB sends a CoMP service bearer setup request message to the cooperative eNodeB through the wired interface X2, where the setup request message carries the service information to be established and the uplink address information allocated by the SGW for the service; the collaborative eNodeB passes the wired interface X2. And responding to the CoMP service bearer setup response message to the primary eNodeB, where the response message carries the service identifier and the transport layer downlink address information allocated by the coordinated eNodeB for the service.
步驟 203 , 主 eNodeB通过有线接口 S1向核心网返回业务承载建立响 应， 完成业务 7|载建立；  Step 203: The primary eNodeB returns a service bearer establishment response to the core network through the wired interface S1, and completes the service establishment.
具体的， 主 eNodeB通过有线接口 S1向核心网返回业务承载建立响应 消息， 所述响应消息中携带业务标识、 以及主 eNodeB和协作 eNodeB为该 业务分配的传输层下行地址信息。 Specifically, the primary eNodeB returns a service bearer setup response to the core network through the wired interface S1. The message carries the service identifier and the transport layer downlink address information allocated by the primary eNodeB and the coordinated eNodeB for the service.
步驟 204 ,核心网和 UE之间的业务数据，经过主 eNodeB和协作 eNodeB 进行交互传输。  Step 204: The service data between the core network and the UE is transmitted through the primary eNodeB and the coordinated eNodeB.
具体的， 上行方向上， 主 eNodeB和协作 eNodeB收到 UE发送的业务 数据， 由主 eNodeB和协作 eNodeB将接收到的业务数据通过有线接口 S1 向 SGW针对业务分配的上行地址发送。 下行方向上， SGW会将下行业务 数据通过有线接口 S1 分别发送给主 eNodeB 和协作 eNodeB, 然后在主 eNodeB的统一调度下， 各 eNodeB将各自接收到的业务数据针对业务分配 的下行地址发送给 UE。  Specifically, in the uplink direction, the primary eNodeB and the coordinated eNodeB receive the service data sent by the UE, and the primary eNodeB and the coordinated eNodeB send the received service data to the SGW for the uplink address allocated by the service through the wired interface S1. In the downlink direction, the SGW sends the downlink service data to the primary eNodeB and the coordinated eNodeB through the wired interface S1. Then, under the unified scheduling of the primary eNodeB, each eNodeB sends the received service data to the UE for the downlink address of the service allocation. .
图 3 为本发明一种基于多点协作的分布式有线接口数据传输***结构 示意图， 如图 3 所示， 所述***包括： 主 eNodeB31、 一个或多个协作 eNodeB32和核心网 33 , 其中，  FIG. 3 is a schematic structural diagram of a distributed wired interface data transmission system based on multi-point cooperation according to the present invention. As shown in FIG. 3, the system includes: a primary eNodeB 31, one or more cooperative eNodeBs 32, and a core network 33, where
所述主 eNodeB31 ,用于通过有线接口 X2与一个或多个协作 eNodeB32 进行交互， 建立业务承载， 通过有线接口 S1向核心网 33返回业务承载建 立响应， 为核心网 33和 UE之间的业务数据提供交互传输服务；  The primary eNodeB 31 is configured to interact with one or more cooperative eNodeBs through the wired interface X2 to establish a service bearer, and return a service bearer setup response to the core network 33 through the wired interface S1, which is a service data between the core network 33 and the UE. Provide interactive transmission services;
具体的， 主 eNodeB31通过有线接口 X2向协作 eNodeB32发送 CoMP 业务承载建立请求消息， 所述建立请求消息中携带需要建立的业务信息、 以及 SGW为该业务分配的上行地址信息； 协作 eNodeB32通过有线接口 X2回应 CoMP业务承载建立响应消息给主 eNodeB31 , 所述响应消息中携 带业务标识、 以及协作 eNodeB为该业务分配的传输层下行地址信息。  Specifically, the primary eNodeB 31 sends a CoMP service bearer setup request message to the cooperative eNodeB 32 through the wired interface X2, where the setup request message carries the service information to be established and the uplink address information allocated by the SGW for the service; the collaborative eNodeB32 passes the wired interface X2. And responding to the CoMP service bearer setup response message to the primary eNodeB 31, where the response message carries the service identifier and the transport layer downlink address information allocated by the coordinated eNodeB for the service.
主 eNodeB31通过有线接口 S1向核心网 33返回业务 载建立响应消 息， 所述响应消息中携带业务标识、 以及主 eNodeB31和协作 eNodeB32为 该业务分配的传输层下行地址信息。  The primary eNodeB 31 returns a service bearer response message to the core network 33 through the wired interface S1. The response message carries the service identifier and the transport layer downlink address information allocated by the primary eNodeB 31 and the cooperative eNodeB 32 for the service.
所述主 eNodeB31为核心网 33和 UE之间的业务数据提供交互传输服 务， 包括： 上行方向上， 主 eNodeB31 收到 UE发送的业务数据， 由主 eNodeB31将接收到的业务数据通过有线接口 S1向 SGW针对业务分配的上 行地址发送。 下行方向上， SGW会将下行业务数据通过有线接口 S1发送 给主 eNodeB31 , 然后由主 eNodeB31将接收到的业务数据针对业务分配的 下行地址发送给 UE。 The primary eNodeB 31 provides an interactive transmission service for service data between the core network 33 and the UE. The service includes: In the uplink direction, the primary eNodeB 31 receives the service data sent by the UE, and the primary eNodeB 31 sends the received service data to the SGW for the uplink address allocated by the service through the wired interface S1. In the downlink direction, the SGW sends the downlink service data to the primary eNodeB 31 through the wired interface S1, and then the primary eNodeB 31 sends the received service data to the UE for the downlink address allocated by the service.
所述协作 eNodeB32,用于为核心网 33和 UE之间的业务数据提供交互 传输服务；  The cooperative eNodeB 32 is configured to provide an interactive transmission service for service data between the core network 33 and the UE;
具体的， 所述协作 eNodeB32为核心网 33和 UE之间的业务数据提供 交互传输服务， 包括： 上行方向上， 协作 eNodeB32收到 UE发送的业务数 据， 由协作 eNodeB32将接收到的业务数据通过有线接口 S1向 SGW针对 业务分配的上行地址发送。 下行方向上， SGW会将下行业务数据通过有线 接口 S1发送给协作 eNodeB32, 然后在 eNodeB31 的统一调度下， 由协作 eNodeB32将接收到的业务数据针对业务分配的下行地址发送给 UE。  Specifically, the cooperative eNodeB 32 provides an interactive transmission service for the service data between the core network 33 and the UE, including: in the uplink direction, the coordinated eNodeB32 receives the service data sent by the UE, and the coordinated eNodeB32 passes the received service data through the cable. The interface S1 is sent to the SGW for the uplink address assigned by the service. In the downlink direction, the SGW sends the downlink service data to the coordinated eNodeB 32 through the wired interface S1. Then, under the unified scheduling of the eNodeB 31, the coordinated eNodeB 32 sends the received service data to the UE for the downlink address allocated by the service.
所述核心网 33 , 用于通过有线接口 S1向主 eNodeB31发起业务承载建 立请求， 接收主 eNodeB31返回的业务承载建立响应， 完成业务承载建立。  The core network 33 is configured to initiate a service bearer establishment request to the primary eNodeB 31 through the wired interface S1, receive a service bearer setup response returned by the primary eNodeB 31, and complete the service bearer establishment.
具体的， 核心网 33中的 MME/SGW通过有线接口 S1向主 eNodeB31 发送业务承载建立请求消息， 所述消息中携带需要建立的业务信息、 以及 SGW为该业务分配的上行地址信息。  Specifically, the MME/SGW in the core network 33 sends a service bearer setup request message to the primary eNodeB 31 through the wired interface S1, where the message carries the service information to be established and the uplink address information allocated by the SGW for the service.
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的保 护范围。  The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

权利要求书 Claim
1、 一种基于多点协作的分布式有线接口数据传输方法， 其特征在于， 所述方法包括：  A distributed cable interface data transmission method based on multi-point cooperation, wherein the method comprises:
核心网通过有线接口 S1向主演进型基站（eNodeB )发起业务承载建立 请求；  The core network initiates a service bearer setup request to the primary evolved base station (eNodeB) through the wired interface S1;
主 eNodeB通过有线接口 X2与一个或多个协作 eNodeB进行交互， 建 立业务承载；  The primary eNodeB interacts with one or more collaborative eNodeBs through the wired interface X2 to establish a service bearer;
主 eNodeB通过有线接口 S1向核心网返回业务承载建立响应， 完成业 务承载建立；  The primary eNodeB returns a service bearer setup response to the core network through the wired interface S1, and completes the establishment of the service bearer;
核心网和用户设备（ UE )之间的业务数据， 经过主 eNodeB 和协作 eNodeB进行交互传输。  The service data between the core network and the user equipment (UE) is transmitted through the primary eNodeB and the coordinated eNodeB.
2、 根据权利要求 1所述的方法， 其特征在于， 所述业务承载建立请求 具体为业务承载建立请求消息， 所述消息中携带需要建立的业务信息、 以 及核心网为该业务分配的上行地址信息。  The method according to claim 1, wherein the service bearer establishment request is specifically a service bearer setup request message, where the message carries the service information to be established, and the uplink address allocated by the core network for the service information.
3、 根据权利要求 1或 2所述的方法， 其特征在于， 所述主 eNodeB通 过有线接口 X2与一个或多个协作 eNodeB进行交互，建立业务承载， 包括： 主 eNodeB通过有线接口 X2向协作 eNodeB发送业务 载建立请求消 息， 所述建立请求消息中携带业务信息、 以及核心网为该业务分配的上行 地址信息； 协作 eNodeB通过有线接口 X2回应业务承载建立响应消息给主 eNodeB, 所述响应消息中携带业务标识、 以及协作 eNodeB为该业务分配 的传输层下行地址信息。  The method according to claim 1 or 2, wherein the primary eNodeB interacts with one or more cooperative eNodeBs through the wired interface X2 to establish a service bearer, including: the primary eNodeB transmits the coordinated eNodeB through the wired interface X2. And sending a service bearer setup request message, where the setup request message carries the service information, and the uplink address information allocated by the core network for the service; the coordinated eNodeB responds to the service bearer setup response message to the primary eNodeB by using the wired interface X2, where the response message is The carrying service identifier and the transport layer downlink address information allocated by the collaborative eNodeB for the service.
4、 根据权利要求 1或 2所述的方法， 其特征在于， 所述业务承载建立 响应具体为业务承载建立响应消息， 所述响应消息中携带业务标识、 以及 主 eNodeB和协作 eNodeB为该业务分配的传输层下行地址信息。  The method according to claim 1 or 2, wherein the service bearer setup response is specifically a service bearer setup response message, the response message carries a service identifier, and the primary eNodeB and the coordinated eNodeB allocate the service Transport layer downlink address information.
5、 根据权利要求 1或 2所述的方法， 其特征在于， 所述核心网和 UE 之间的业务数据， 经过主 eNodeB和协作 eNodeB进行交互传输， 包括： 上行方向上， 主 eNodeB和协作 eNodeB收到 UE发送的业务数据， 由 主 eNodeB和协作 eNodeB将接收到的业务数据通过有线接口 S1向核心网 针对业务分配的上行地址发送； 下行方向上， 核心网会将下行业务数据通 过有线接口 S1分别发送给主 eNodeB和协作 eNodeB ,然后在主 eNodeB的 统一调度下， 各 eNodeB将各自接收到的业务数据发送给 UE。 The method according to claim 1 or 2, wherein the core network and the UE The service data between the primary eNodeB and the coordinated eNodeB is transmitted in the uplink, and the primary eNodeB and the coordinated eNodeB receive the service data sent by the UE, and the primary eNodeB and the coordinated eNodeB pass the received service data through the wired interface. S1 sends to the core network the uplink address allocated for the service; in the downlink direction, the core network sends the downlink service data to the primary eNodeB and the coordinated eNodeB through the wired interface S1, and then under the unified scheduling of the primary eNodeB, each eNodeB receives each The incoming service data is sent to the UE.
6、 一种基于多点协作的分布式有线接口数据传输***， 其特征在于， 所述***包括： 主 eNodeB、 一个或多个协作 eNodeB和核心网， 其中， 所述主 eNodeB , 用于通过有线接口 X2与一个或多个协作 eNodeB进 行交互建立业务承载， 通过有线接口 S1向核心网返回业务承载建立响应， 为核心网和 UE之间的业务数据提供交互传输服务；  A distributed wired interface data transmission system based on multi-point cooperation, the system comprising: a primary eNodeB, one or more cooperative eNodeBs, and a core network, wherein the primary eNodeB is configured to be wired The interface X2 interacts with one or more cooperative eNodeBs to establish a service bearer, and returns a service bearer setup response to the core network through the wired interface S1, and provides an interactive transmission service for the service data between the core network and the UE;
所述协作 eNodeB , 用于为核心网和 UE之间的业务数据提供交互传输 服务；  The cooperative eNodeB is configured to provide an interactive transmission service for service data between the core network and the UE;
所述核心网， 用于通过有线接口 S1向主 eNodeB发起业务承载建立请 求， 接收主 eNodeB返回的业务承载建立响应， 完成业务承载建立。  The core network is configured to initiate a service bearer setup request to the primary eNodeB through the wired interface S1, receive a service bearer setup response returned by the primary eNodeB, and complete the service bearer setup.
7、 根据权利要求 6所述的***， 其特征在于， 所述核心网发送的业务 承载建立请求具体为业务承载建立请求消息， 所述消息中携带需要建立的 业务信息、 以及核心网为该业务分配的上行地址信息。  The system according to claim 6, wherein the service bearer establishment request sent by the core network is specifically a service bearer setup request message, where the message carries the service information to be established, and the core network is the service The assigned upstream address information.
8、 根据权利要求 6或 7所述的***， 其特征在于， 所述主 eNodeB通 过有线接口 X2与一个或多个协作 eNodeB进行交互，建立业务承载， 包括： 主 eNodeB通过有线接口 X2向协作 eNodeB发送业务 载建立请求消 息， 所述建立请求消息中携带业务信息、 以及核心网为该业务分配的上行 地址信息； 协作 eNodeB通过有线接口 X2回应业务承载建立响应消息给主 eNodeB , 所述响应消息中携带业务标识、 以及协作 eNodeB为该业务分配 的传输层下行地址信息。 The system according to claim 6 or 7, wherein the primary eNodeB interacts with one or more cooperative eNodeBs through the wired interface X2 to establish a service bearer, including: the primary eNodeB transmits the coordinated eNodeB through the wired interface X2. And sending a service bearer setup request message, where the setup request message carries the service information, and the uplink address information allocated by the core network for the service; the coordinated eNodeB responds to the service bearer setup response message to the primary eNodeB by using the wired interface X2, where the response message is The carrying service identifier and the transport layer downlink address information allocated by the collaborative eNodeB for the service.
9、 根据权利要求 6或 7所述的***， 其特征在于， 所述主 eNodeB向 核心网返回的业务承载建立响应具体为业务承载建立响应消息， 所述响应 消息中携带业务标识、 以及主 eNodeB和协作 eNodeB为该业务分配的传输 层下行地址信息。 The system according to claim 6 or 7, wherein the service bearer establishment response returned by the primary eNodeB to the core network is specifically a service bearer setup response message, where the response message carries the service identifier and the primary eNodeB. And the transport layer downlink address information allocated by the collaborative eNodeB for the service.
10、 根据权利要求 6或 7所述的***， 其特征在于， 所述主 eNodeB和 协作 eNodeB为核心网和 UE之间的业务数据提供交互传输服务， 包括： 上行方向上， 主 eNodeB和协作 eNodeB收到 UE发送的业务数据， 由 主 eNodeB和协作 eNodeB将接收到的业务数据通过有线接口 S1向核心网 针对业务分配的上行地址发送； 下行方向上， 核心网会将下行业务数据通 过有线接口 S1分别发送给主 eNodeB和协作 eNodeB,然后在主 eNodeB的 统一调度下， 各 eNodeB将各自接收到的业务数据发送给 UE。  The system according to claim 6 or 7, wherein the primary eNodeB and the cooperative eNodeB provide an interactive transmission service for service data between the core network and the UE, including: in the uplink direction, the primary eNodeB and the coordinated eNodeB. Receiving the service data sent by the UE, the primary eNodeB and the cooperative eNodeB send the received service data to the uplink address allocated by the core network to the core network through the wired interface S1; in the downlink direction, the core network passes the downlink service data through the wired interface S1. The eNodeB sends the service data received by the eNodeB to the UE under the unified scheduling of the primary eNodeB.
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