WO2016107179A1 - X2 interface message processing method, base station, x2 gateway, and system - Google Patents

Abstract

Disclosed are an X2 interface message processing method, an X2 gateway, a base station, and a system. The method comprises: receiving an X2 removal process message transmitted by a base station; and, removing connection information of an X2 interface of the corresponding base station on the basis of the X2 removal process message.

Description

一种X2接口消息处理方法、基站、X2网关及系统X2 interface message processing method, base station, X2 gateway and system技术领域Technical field

本发明涉及移动通信领域中的控制技术，尤其涉及一种X2接口消息处理方法、基站、X2网关及系统。The present invention relates to control technologies in the field of mobile communications, and in particular, to an X2 interface message processing method, a base station, an X2 gateway, and a system.

背景技术Background technique

第三代伙伴组织计划(Third Generation Partnership Projects，简称3GPP)标准组织定义的LTE(Long Term Evolution)系统中家庭基站被称为HeNB(home eNB)。HeNB所支持的功能与eNB基本一致，HeNB与EPC(Evolved Packet Core)之间的进程和eNB与EPC之间基本一致。由于HeNB的布署通常没有经过移动运营商的网络规划、覆盖范围小且数量众多。为了更方便的管理并为了支持更多数量的HeNB，在E-UTRAN(Evolved UTRAN)架构下，在HeNB与EPC的S1连接之间引入一个新的网元HeNB GW(Home eNB Gateway)。由于基站可使用的X2接口数量有限，因此需要及时删除不需要的X2连接关系，以便该基站能建立新的X2连接。基于该需求，X2接口中引入X2移除流程来移除双方基站中的X2连接。但由于X2网关并不解析其路由的X2接口信息传输消息中的X2消息，X2网关并不能获知基站之间已完成X2连接移除。因此现有技术中，X2网关无法正常维护其连接基站间的X2连接信息，当X2网关检测到其与某基站的SCTP连接断开后，将发送不必要的X2释放消息给已经与该基站移除X2连接的相邻基站并造成X2信令浪费。The home base station in the LTE (Long Term Evolution) system defined by the Third Generation Partnership Projects (3GPP) standards organization is called HeNB (home eNB). The functions supported by the HeNB are basically the same as those of the eNB. The process between the HeNB and the EPC (Evolved Packet Core) and the eNB and the EPC are basically the same. Since the deployment of the HeNB is usually not planned by the mobile operator's network, the coverage is small and numerous. In order to more conveniently manage and support a larger number of HeNBs, a new network element HeNB GW (Home eNB Gateway) is introduced between the HeNB and the EPC S1 connection under the E-UTRAN (Evolved UTRAN) architecture. Since the number of X2 interfaces that the base station can use is limited, it is necessary to delete the unnecessary X2 connection relationship in time so that the base station can establish a new X2 connection. Based on this requirement, an X2 removal procedure is introduced in the X2 interface to remove the X2 connection in both base stations. However, since the X2 gateway does not resolve the X2 message in the X2 interface information transmission message of its route, the X2 gateway cannot know that the X2 connection removal has been completed between the base stations. Therefore, in the prior art, the X2 gateway cannot normally maintain the X2 connection information between the connected base stations. When the X2 gateway detects that its SCTP connection with a certain base station is disconnected, the X2 gateway will send an unnecessary X2 release message to the base station. Except for neighboring base stations connected by X2 and causing X2 signaling waste.

另外，X2网关接收到X2接口过程消息后，若无法正确处理所接收的X2接口过程消息，例如，无法正确路由，则可回复错误指示消息给基站。基站可通过X2网关同时向多个相邻基站发起X2接口过程。In addition, after receiving the X2 interface process message, the X2 gateway may reply the error indication message to the base station if the received X2 interface process message cannot be correctly processed, for example, cannot be correctly routed. The base station can simultaneously initiate an X2 interface process to multiple neighboring base stations through the X2 gateway.

发明内容Summary of the invention

为解决上述技术问题，本发明的目的在于提供一种X2接口消息处理方法、基站、X2网关及系统，能至少解决现有技术中存在的上述问题。In order to solve the above technical problem, an object of the present invention is to provide an X2 interface message processing method, a base station, an X2 gateway, and a system, which can solve at least the above problems in the prior art.

本发明实施例提供了一种X2接口消息处理方法，应用于X2网关，所述方法包括：The embodiment of the invention provides an X2 interface message processing method, which is applied to an X2 gateway, and the method includes:

接收到基站发送的X2移除过程消息；Receiving an X2 removal process message sent by the base station;

根据所述X2移除过程消息移除对应的基站的X2接口的连接信息。The connection information of the X2 interface of the corresponding base station is removed according to the X2 removal procedure message.

上述方案中，所述X2移除过程消息包括以下至少一种：In the above solution, the X2 removal process message includes at least one of the following:

X2移除请求消息、X2移除响应消息、X2移除失败消息。X2 removal request message, X2 removal response message, X2 removal failure message.

上述方案中，所述接收到基站发送的X2移除过程消息，包括：接收到X2接口信息传输消息，从所述X2接口信息传输信息中提取X2移除过程消息；In the above solution, the receiving the X2 removal process message sent by the base station includes: receiving an X2 interface information transmission message, and extracting an X2 removal process message from the X2 interface information transmission information;

其中，所述X2接口信息传输消息携带有X2移除指示信息；所述X2移除指示信息用于指示所述X2接口信息传输消息中包含的消息类型、或者为用于控制X2网关执行X2移除操作的指示信息；The X2 interface information transmission message carries X2 removal indication information; the X2 removal indication information is used to indicate a message type included in the X2 interface information transmission message, or is used to control an X2 gateway to perform X2 shifting. In addition to instructions for operation;

所述消息类型包括以下几种：X2移除请求消息、X2移除响应消息、X2移除失败消息。The message types include the following: an X2 removal request message, an X2 removal response message, and an X2 removal failure message.

上述方案中，所述根据所述X2移除过程消息移除对应的基站的X2接口的连接信息，包括：In the above solution, the removing the connection information of the X2 interface of the corresponding base station according to the X2 removal process message includes:

接收到X2接口信息传输消息，若X2接口信息传输消息中包含有X2移除指示信息，则从所述X2接口信息传输消息中提取携带的源基站和目标基站的标识信息，根据所述源基站和目标基站的标识信息选取并移除源基站和目标基站之间的X2连接关系信息；Receiving the X2 interface information transmission message, if the X2 interface information transmission message includes the X2 removal indication information, extracting, from the X2 interface information transmission message, the identifier information of the source base station and the target base station, according to the source base station And identifying, by the identifier information of the target base station, the X2 connection relationship information between the source base station and the target base station;

或者，or,

接收到X2接口信息传输消息后，若X2接口信息传输消息中包含X2移除指示信息，则从所述X2接口信息传输消息中提取X2接口消息，当所述X2接口消息为X2移除响应消息，则从所述X2接口信息传输消息中提取携带的源基站和目标基站的标识信息，根据所述源基站和目标基站的标识信息选取并移除源基站和目标基站之间的X2连接关系信息。After receiving the X2 interface information transmission message, if the X2 interface information transmission message is includedX2 removes the indication information, and extracts an X2 interface message from the X2 interface information transmission message. When the X2 interface message is an X2 removal response message, the source base station and the carried source base station are extracted from the X2 interface information transmission message. The identifier information of the target base station is used to select and remove X2 connection relationship information between the source base station and the target base station according to the identifier information of the source base station and the target base station.

上述方案中，所述接收到基站发送的X2移除过程消息，包括：X2网关接收基站直接发送的X2移除过程消息。In the above solution, the receiving the X2 removal process message sent by the base station includes: the X2 gateway receiving the X2 removal process message directly sent by the base station.

上述方案中，所述X2移除过程消息中携带有目标基站和/或源基站的标识信息。In the above solution, the X2 removal process message carries identification information of the target base station and/or the source base station.

上述方案中，所述方法还包括：接收到X2移除响应消息，则从所述X2移除响应消息中提取携带的源基站和目标基站的标识信息，根据所述源基站和目标基站的标识信息选取并移除源基站和目标基站之间的X2连接关系信息。In the foregoing solution, the method further includes: after receiving the X2 removal response message, extracting, from the X2 removal response message, identifier information of the source base station and the target base station, according to the identifiers of the source base station and the target base station. The information selects and removes the X2 connection relationship information between the source base station and the target base station.

上述方案中，所述方法还包括：In the above solution, the method further includes:

接收到基站发来的X2接口消息；所述X2接口消息中携带有目标基站和/或源基站的标识信息；Receiving an X2 interface message sent by the base station; the X2 interface message carries identifier information of the target base station and/or the source base station;

当无法正确执行所述X2接口流程时，发送错误指示消息至所述基站，其中，所述错误指示消息中包含所述源基站和/或目标基站的基站标识信息。When the X2 interface process cannot be correctly performed, an error indication message is sent to the base station, where the error indication message includes base station identification information of the source base station and/or the target base station.

上述方案中，所述无法正确执行所述X2接口流程，包括：In the above solution, the X2 interface process cannot be correctly executed, including:

无法处理所述X2接口消息；Unable to process the X2 interface message;

或者，无法路由所述X2接口消息。Or, the X2 interface message cannot be routed.

本发明实施例提供了一种X2接口消息处理方法，应用于基站，所述方法包括：The embodiment of the invention provides an X2 interface message processing method, which is applied to a base station, and the method includes:

生成X2移除过程消息；发送X2移除过程消息给X2网关，以使得所述X2网关根据所述X2移除过程消息移除对应的基站的X2接口的连接信息。Generating an X2 removal procedure message; sending an X2 removal procedure message to the X2 gateway, such that the X2 gateway removes the connection of the corresponding base station's X2 interface according to the X2 removal procedure messageReceive information.

上述方案中，所述X2移除过程消息包括以下至少一种：X2移除请求消息、X2移除响应消息、X2移除失败消息。In the above solution, the X2 removal process message includes at least one of the following: an X2 removal request message, an X2 removal response message, and an X2 removal failure message.

上述方案中，所述发送X2移除过程消息给X2网关，包括：In the foregoing solution, the sending the X2 removal process message to the X2 gateway includes:

将所述X2移除过程消息包含于X2接口信息传输消息中发送；所述X2移除指示信息用于指示所述X2接口信息传输消息中包含的消息类型、或者为用于控制X2网关执行X2移除操作的指示信息；And sending the X2 removal process message to the X2 interface information transmission message, where the X2 removal indication information is used to indicate a message type included in the X2 interface information transmission message, or to perform X2 for controlling the X2 gateway. Instructions for removing the operation;

所述消息类型包括以下几种：X2移除请求消息、X2移除响应消息、X2移除失败消息。The message types include the following: an X2 removal request message, an X2 removal response message, and an X2 removal failure message.

上述方案中，所述发送X2移除过程消息给X2网关，包括：不包含于X2接口信息传输消息中，而是直接发送X2移除过程消息。In the foregoing solution, the sending the X2 removal process message to the X2 gateway includes: not being included in the X2 interface information transmission message, but directly sending the X2 removal process message.

上述方案中，所述X2移除过程消息中携带有目标基站和/或源基站的标识信息。In the above solution, the X2 removal process message carries identification information of the target base station and/or the source base station.

本发明实施例提供了一种X2网关，所述X2网关包括：An embodiment of the present invention provides an X2 gateway, where the X2 gateway includes:

接收单元，用于接收到基站发送的X2移除过程消息；a receiving unit, configured to receive an X2 removal process message sent by the base station;

处理单元，用于根据所述X2移除过程消息移除对应的基站的X2接口的连接信息。And a processing unit, configured to remove connection information of the X2 interface of the corresponding base station according to the X2 removal process message.

上述方案中，所述X2移除过程消息包括以下至少一种：X2移除请求消息、X2移除响应消息、X2移除失败消息。In the above solution, the X2 removal process message includes at least one of the following: an X2 removal request message, an X2 removal response message, and an X2 removal failure message.

上述方案中，所述接收单元，具体用于接收到X2接口信息传输消息；In the above solution, the receiving unit is specifically configured to receive an X2 interface information transmission message;

相应的，所述处理单元，具体用于从所述X2接口信息传输信息中提取X2移除过程消息；Correspondingly, the processing unit is specifically configured to extract an X2 removal process message from the X2 interface information transmission information;

其中，所述X2接口信息传输消息携带有X2移除指示信息；所述X2移除指示信息用于指示所述X2接口信息传输消息中包含的消息类型、或者为用于控制X2网关执行X2移除操作的指示信息；所述消息类型包括以下几种：X2移除请求消息、X2移除响应消息、X2移除失败消息。The X2 interface information transmission message carries X2 removal indication information, and the X2 removal indication information is used to indicate a message class included in the X2 interface information transmission message.Type, or indication information for controlling the X2 gateway to perform an X2 removal operation; the message types include the following: an X2 removal request message, an X2 removal response message, and an X2 removal failure message.

上述方案中，所述处理单元，具体用于接收到X2接口信息传输消息，若X2接口信息传输消息中包含有X2移除指示信息，则从所述X2接口信息传输消息中提取携带的源基站和目标基站的标识信息，根据所述源基站和目标基站的标识信息选取并移除源基站和目标基站之间的X2连接关系信息；In the above solution, the processing unit is specifically configured to receive the X2 interface information transmission message, and if the X2 interface information transmission message includes the X2 removal indication information, extract the carried source base station from the X2 interface information transmission message. And identifying, by using the identifier information of the target base station, the X2 connection relationship information between the source base station and the target base station according to the identifier information of the source base station and the target base station;

或者，or,

接收到X2接口信息传输消息后，若X2接口信息传输消息中包含X2移除指示信息，则从所述X2接口信息传输消息中提取X2接口消息，当所述X2接口消息为X2移除响应消息，则从所述X2接口信息传输消息中提取携带的源基站和目标基站的标识信息，根据所述源基站和目标基站的标识信息选取并移除源基站和目标基站之间的X2连接关系信息。After receiving the X2 interface information transmission message, if the X2 interface information transmission message includes the X2 removal indication information, the X2 interface message is extracted from the X2 interface information transmission message, and the X2 interface message is an X2 removal response message. Extracting the identifier information of the source base station and the target base station from the X2 interface information transmission message, and selecting and removing the X2 connection relationship information between the source base station and the target base station according to the identifier information of the source base station and the target base station. .

上述方案中，所述接收单元，具体用于接收基站直接发送的X2移除过程消息。In the above solution, the receiving unit is specifically configured to receive an X2 removal process message directly sent by the base station.

上述方案中，所述X2移除过程消息中携带有目标基站和/或源基站的标识信息。In the above solution, the X2 removal process message carries identification information of the target base station and/or the source base station.

上述方案中，所述接收单元，还用于接收到X2移除响应消息；In the above solution, the receiving unit is further configured to receive an X2 removal response message;

相应的，所述处理单元，还用于从所述X2移除响应消息中提取携带的源基站和目标基站的标识信息，根据所述源基站和目标基站的标识信息选取并移除源基站和目标基站之间的X2连接关系信息。Correspondingly, the processing unit is further configured to extract, from the X2 removal response message, identification information of the source base station and the target base station, and select and remove the source base station according to the identifier information of the source base station and the target base station. X2 connection relationship information between target base stations.

上述方案中，所述接收单元，还用于接收到基站发来的X2接口消息；所述X2接口消息中携带有目标基站和源基站的标识信息；In the foregoing solution, the receiving unit is further configured to receive an X2 interface message sent by the base station, where the X2 interface message carries identifier information of the target base station and the source base station;

相应的，所述处理单元，还用于判断所述X2接口消息是否符合第一预设条件，当无法正确执行所述X2接口流程时，发送错误指示消息至所述基站，其中，所述错误指示消息中包含所述源基站和目标基站的基站标识信息。Correspondingly, the processing unit is further configured to determine whether the X2 interface message meets the firstA preset condition is that, when the X2 interface process cannot be correctly executed, an error indication message is sent to the base station, where the error indication message includes base station identification information of the source base station and the target base station.

上述方案中，所述处理单元，具体用于若无法处理所述X2接口消息，或者，无法路由所述X2接口消息，则无法正确执行所述X2接口流程。In the foregoing solution, the processing unit is specifically configured to: if the X2 interface message cannot be processed, or the X2 interface message cannot be queried, the X2 interface process cannot be correctly executed.

本发明实施例提供了一种基站，所述基站包括：An embodiment of the present invention provides a base station, where the base station includes:

处理单元，用于生成X2移除过程消息；a processing unit, configured to generate an X2 removal process message;

发送单元，用于发送X2移除过程消息给X2网关，以使得所述X2网关根据所述X2移除过程消息移除对应的基站的X2接口的连接信息。And a sending unit, configured to send an X2 removal procedure message to the X2 gateway, so that the X2 gateway removes connection information of the X2 interface of the corresponding base station according to the X2 removal procedure message.

上述方案中，所述X2移除过程消息包括以下至少一种：In the above solution, the X2 removal process message includes at least one of the following:

X2移除请求消息、X2移除响应消息、X2移除失败消息。X2 removal request message, X2 removal response message, X2 removal failure message.

上述方案中，所述发送单元，具体用于将所述X2移除过程消息包含于X2接口信息传输消息中发送；所述X2移除指示信息用于指示所述X2接口信息传输消息中包含的消息类型、或者为用于控制X2网关执行X2移除操作的指示信息；In the above solution, the sending unit is specifically configured to send the X2 removal process message to the X2 interface information transmission message, where the X2 removal indication information is used to indicate that the X2 interface information transmission message is included in the message. a message type, or an indication information for controlling an X2 gateway to perform an X2 removal operation;

所述消息类型包括以下几种：X2移除请求消息、X2移除响应消息、X2移除失败消息。The message types include the following: an X2 removal request message, an X2 removal response message, and an X2 removal failure message.

上述方案中，所述发送单元，具体用于不将所述X2移除过程消息包含于X2接口信息传输消息中，而是直接发送X2移除过程消息。In the above solution, the sending unit is specifically configured not to include the X2 removal process message in the X2 interface information transmission message, but directly send the X2 removal process message.

上述方案中，所述X2移除过程消息中携带有目标基站和/或源基站的标识信息。In the above solution, the X2 removal process message carries identification information of the target base station and/or the source base station.

本发明实施例提供了一种X2接口消息处理系统，所述系统包括：基站及X2网关；其中，An embodiment of the present invention provides an X2 interface message processing system, where the system includes: a base station and an X2 gateway;

所述X2网关，用于接收到基站发送的X2移除过程消息；根据所述X2移除过程消息移除对应的基站的X2接口的连接信息；The X2 gateway is configured to receive an X2 removal process message sent by the base station;The X2 removal process message removes the connection information of the X2 interface of the corresponding base station;

所述基站，用于生成X2移除过程消息；发送X2移除过程消息给X2网关。The base station is configured to generate an X2 removal process message, and send an X2 removal process message to the X2 gateway.

上述方案中，所述基站包括：宏基站，和/或家庭基站。In the above solution, the base station includes: a macro base station, and/or a home base station.

本发明实施例所提供的编码调制方式的X2接口消息处理方法、基站、X2网关及系统，X2网关根据基站发来的X2移除过程消息来控制基站间的X2连接移除；如此，保证了X2网关能够及时获知基站之间的X2连接移除情况，使得X2网关能正常维护其连接基站间的X2连接信息，有效减少不必要的X2消息。The X2 interface message processing method, the base station, the X2 gateway and the system of the code modulation mode provided by the embodiment of the present invention, the X2 gateway controls the X2 connection removal between the base stations according to the X2 removal process message sent by the base station; thus, the guarantee is ensured. The X2 gateway can know the X2 connection removal between the base stations in time, so that the X2 gateway can normally maintain the X2 connection information between the connected base stations, thereby effectively reducing unnecessary X2 messages.

附图说明DRAWINGS

图1为本发明实施例X2接口消息处理方法流程示意图一；1 is a schematic flowchart 1 of a method for processing an X2 interface message according to an embodiment of the present invention;

图2为本发明实施例X2接口消息处理方法流程示意图二；2 is a second schematic flowchart of a method for processing an X2 interface message according to an embodiment of the present invention;

图3为本发明实施例X2接口消息处理方法流程示意图三；3 is a schematic flowchart 3 of a method for processing an X2 interface message according to an embodiment of the present invention;

图4为本发明实施例X2接口消息处理方法流程示意图四；4 is a schematic flowchart 4 of a method for processing an X2 interface message according to an embodiment of the present invention;

图5为本发明实施例X2接口消息处理方法流程示意图五；5 is a schematic flowchart 5 of a method for processing an X2 interface message according to an embodiment of the present invention;

图6为本发明实施例X2网关组成结构示意图；6 is a schematic structural diagram of a structure of a gateway of an X2 according to an embodiment of the present invention;

图7为本发明实施例基站组成结构示意图；7 is a schematic structural diagram of a base station according to an embodiment of the present invention;

图8为本发明实施例X2接口消息处理系统组成结构示意图；8 is a schematic structural diagram of a structure of an X2 interface message processing system according to an embodiment of the present invention;

图9为本发明实施例系统组成场景。FIG. 9 is a system composition scenario of an embodiment of the present invention.

具体实施方式detailed description

下面结合附图及具体实施例对本发明再作进一步详细的说明。The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

实施例一、Embodiment 1

本发明实施例提出一种X2接口消息处理方法，应用于网关，如图1所示，包括：The embodiment of the invention provides an X2 interface message processing method, which is applied to a gateway, as shown in FIG. 1 , and includes:

步骤101：接收到基站发送的X2移除过程消息的指令；Step 101: Receive an instruction of an X2 removal process message sent by a base station;

步骤102：根据所述X2移除过程消息移除对应的基站的X2接口的连接信息。Step 102: Remove connection information of the X2 interface of the corresponding base station according to the X2 removal procedure message.

这里，所述X2移除过程消息包括以下至少一种：X2移除请求消息、X2移除响应消息、X2移除失败消息。Here, the X2 removal procedure message includes at least one of the following: an X2 removal request message, an X2 removal response message, and an X2 removal failure message.

所述接收到基站发送的X2移除过程消息，有两种情况，一种是X2移除过程消息直接发送的情况，另一种是X2移除过程消息包含于X2接口信息传输消息中发送的情况，具体如下：The receiving the X2 removal process message sent by the base station has two situations, one is that the X2 removal process message is directly sent, and the other is that the X2 removal process message is included in the X2 interface information transmission message. The situation is as follows:

情况一：接收到X2接口信息传输消息，从所述X2接口信息传输信息中提取X2移除过程消息；其中，所述X2接口信息传输消息携带有X2移除指示信息；所述X2移除指示信息用于指示所述X2接口信息传输消息中包含的消息类型、或者为用于控制X2网关执行X2移除操作的指示信息；所述消息类型包括以下几种：X2移除请求消息、X2移除响应消息、X2移除失败消息。Case 1: receiving an X2 interface information transmission message, and extracting an X2 removal process message from the X2 interface information transmission information; wherein the X2 interface information transmission message carries X2 removal indication information; the X2 removal indication The information is used to indicate a message type included in the X2 interface information transmission message or an indication information for controlling an X2 gateway to perform an X2 removal operation; the message type includes the following: an X2 removal request message, an X2 shift In addition to the response message, X2 removes the failure message.

在这种情况下，所述根据所述X2移除过程消息移除对应的基站的X2接口的连接信息，包括：In this case, the removing the connection information of the X2 interface of the corresponding base station according to the X2 removal process message includes:

接收到X2接口信息传输消息，若X2接口信息传输消息中包含有X2移除指示信息，则从所述X2接口信息传输消息中提取携带的源基站和目标基站的标识信息，根据所述源基站和目标基站的标识信息选取并移除源基站和目标基站之间的X2连接关系信息；Receiving the X2 interface information transmission message, if the X2 interface information transmission message includes the X2 removal indication information, extracting, from the X2 interface information transmission message, the identifier information of the source base station and the target base station, according to the source base station And identifying, by the identifier information of the target base station, the X2 connection relationship information between the source base station and the target base station;

或者，or,

接收到X2接口信息传输消息后，若X2接口信息传输消息中包含X2移除指示信息，则从所述X2接口信息传输消息中提取X2接口消息，当所述X2接口消息为X2移除响应消息，则从所述X2接口信息传输消息中提取携带的源基站和目标基站的标识信息，根据所述源基站和目标基站的标识信息选取并移除源基站和目标基站之间的X2连接关系信息。After receiving the X2 interface information transmission message, if the X2 interface information transmission message includes the X2 removal indication information, the X2 interface message is extracted from the X2 interface information transmission message, and the X2 interface message is an X2 removal response message. And extracting, from the X2 interface information transmission message, identifier information of the carried source base station and the target base station, according to the source base station and the targetThe identification information of the base station selects and removes the X2 connection relationship information between the source base station and the target base station.

情况二、X2网关接收基站直接发送的X2移除过程消息。Case 2: The X2 gateway receives the X2 removal process message directly sent by the base station.

其中，所述X2移除过程消息中携带有目标基站和/或源基站的标识信息。The X2 removal process message carries identifier information of the target base station and/or the source base station.

优选地，所述方法还可以包括：接收到X2移除响应消息，则从所述X2移除响应消息中提取携带的源基站和目标基站的标识信息，根据所述源基站和目标基站的标识信息选取并移除源基站和目标基站之间的X2连接关系信息。Preferably, the method may further include: receiving an X2 removal response message, extracting, from the X2 removal response message, identification information of the source base station and the target base station, according to the identifiers of the source base station and the target base station. The information selects and removes the X2 connection relationship information between the source base station and the target base station.

进一步的，所述方法还包括：接收到基站发来的X2接口消息；所述X2接口消息中携带有目标基站和/或源基站的标识信息；当无法正确执行所述X2接口流程时，发送错误指示消息至所述基站，其中，所述错误指示消息中包含所述源基站和/或目标基站的基站标识信息。Further, the method further includes: receiving an X2 interface message sent by the base station; the X2 interface message carries the identifier information of the target base station and/or the source base station; when the X2 interface process cannot be correctly executed, sending The error indication message is sent to the base station, where the error indication message includes base station identification information of the source base station and/or the target base station.

所述无法正确执行所述X2接口流程，包括：无法处理所述X2接口消息；或者，无法路由所述X2接口消息。The process of the X2 interface cannot be correctly executed, including: the X2 interface message cannot be processed; or the X2 interface message cannot be routable.

下面通过场景来针对本实施例提供的方法进行说明。The method provided in this embodiment will be described below through a scenario.

如图2所示，其中，基站(eNB)1和基站(eNB)2可以为家庭基站或宏基站，基站间通过X2网关建立X2连接情况下完成X2移除的方法。具体为：As shown in FIG. 2, the base station (eNB) 1 and the base station (eNB) 2 may be a home base station or a macro base station, and the method for completing X2 removal when the base station establishes an X2 connection through the X2 gateway. Specifically:

步骤201，基站1和基站2通过X2网关建立X2连接，若基站1检测到需移除其与基站2之间的X2连接，则发送X2移除请求消息给连接的X2网关，该X2移除请求消息不封装在X2AP消息传递消息中，而是直接发送给X2网关。Step 201: The base station 1 and the base station 2 establish an X2 connection through the X2 gateway. If the base station 1 detects that the X2 connection between the base station 1 and the base station 2 is to be removed, the X2 removal request message is sent to the connected X2 gateway, and the X2 is removed. The request message is not encapsulated in the X2AP messaging message, but is sent directly to the X2 gateway.

其中，所述X2移除请求消息中包含源和目标基站的基站标识信息，即基站1和基站2的eNB ID。The X2 removal request message includes base station identification information of the source and target base stations, that is, the eNB IDs of the base station 1 and the base station 2.

步骤202，X2网关根据基站1发来的X2移除请求消息中的目标基站标识，将X2移除请求消息路由至基站2。Step 202: The X2 gateway according to the target base in the X2 removal request message sent by the base station 1The station identifier routes the X2 removal request message to the base station 2.

步骤203，当基站2根据接收到的X2移除请求消息确定将其与基站1之间的X2连接移除时，向X2网关回复X2移除响应消息。Step 203: When the base station 2 determines to remove the X2 connection between the base station 1 and the base station 1 according to the received X2 removal request message, the X2 removal response message is returned to the X2 gateway.

其中，所述X2移除响应消息同样不封装在X2AP消息传递消息中，而是直接发送给X2网关。所述X2移除响应消息中包含源基站和目标基站的基站标识信息。The X2 removal response message is also not encapsulated in the X2AP messaging message, but is directly sent to the X2 gateway. The X2 removal response message includes base station identification information of the source base station and the target base station.

并且，基站2可删除与基站1的X2连接相关信息，所述X2连接相关信息可以包括：资源、应用层配置数据。Moreover, the base station 2 can delete the information related to the X2 connection of the base station 1, and the X2 connection related information can include: resources, application layer configuration data.

步骤204，接收到X2移除响应消息后也可执行相应的X2移除操作，即将基站1和基站2的X2连接关系信息删除。Step 204: After receiving the X2 removal response message, the corresponding X2 removal operation may also be performed, that is, the X2 connection relationship information of the base station 1 and the base station 2 is deleted.

若后续X2网关检测到其与基站1(或基站2)之间的SCTP连接断开，则将发送X2释放消息给与基站1(或基站2)之间存在X2连接的基站。由于X2网关已将基站1和基站2的X2连接关系信息删除，X2网关不会向基站2(或基站1)发送X2释放消息。If the subsequent X2 gateway detects that the SCTP connection between it and base station 1 (or base station 2) is disconnected, an X2 release message will be sent to the base station with the X2 connection between base station 1 (or base station 2). Since the X2 gateway has deleted the X2 connection relationship information of the base station 1 and the base station 2, the X2 gateway does not send an X2 release message to the base station 2 (or the base station 1).

步骤205，X2网关根据接收的X2移除响应消息中的目标基站标识将X2移除响应消息路由至基站1。Step 205: The X2 gateway routes the X2 removal response message to the base station 1 according to the target base station identifier in the received X2 removal response message.

基站1接收后可删除与基站2的X2连接相关的信息，如资源，应用层配置数据等。After receiving, the base station 1 can delete information related to the X2 connection of the base station 2, such as resources, application layer configuration data, and the like.

图3描述基站间通过X2网关建立X2连接情况下完成X2移除的方法，包括：FIG. 3 illustrates a method for completing X2 removal when an X2 connection is established between the base stations through an X2 gateway, including:

步骤301，基站1和基站2通过X2网关连接，若基站1检测到需移除其与基站2之间的X2连接，则发送X2移除请求消息给其连接的X2网关，具体的，该X2移除请求消息封装在X2接口信息传输消息中发送。该X2接口信息传输消息中包含源和目标基站的基站标识信息，即基站1和基站2的eNB ID。可选的，该消息中还包括X2移除指示信息，该X2移除指示信息用于指示该X2接口信息传输消息中包含的是X2REMOVAL过程(或X2 REMOVAL请求)消息。Step 301, the base station 1 and the base station 2 are connected by the X2 gateway. If the base station 1 detects that the X2 connection between the base station 1 and the base station 2 is to be removed, the X2 removal request message is sent to the connected X2 gateway. Specifically, the X2 The removal request message is encapsulated and sent in the X2 interface information transmission message. The X2 interface information transmission message includes base station identification information of the source and target base stations, that is, the eNB IDs of the base station 1 and the base station 2. Optionally, the message further includes an X2 removal indication information, where the X2The removal indication information is used to indicate that the X2 interface message transmission message contains an X2 REMOVAL procedure (or X2 REMOVAL request) message.

步骤302，X2网关接收X2接口信息传输消息后根据该消息中的目标基站标识信息将该消息路由至基站2。Step 302: After receiving the X2 interface information transmission message, the X2 gateway routes the message to the base station 2 according to the target base station identification information in the message.

步骤303，基站2接受将其与基站1之间的X2连接移除，则向X2网关回复X2移除响应消息。类似的，该X2移除响应消息封装在X2AP消息传递(X2AP MESSAGE TRANSFER)消息中发送。该X2接口信息传输消息中包含源和目标基站的基站标识信息，即基站2和基站1的eNB ID。另外，该消息中还包含X2 REMOVAL指示信息，该X2 REMOVAL指示信息用于指示该X2接口信息传输消息中包含的是X2 REMOVAL过程(或X2 REMOVAL响应)消息。然后，基站2可删除与基站1的X2连接相关的信息，如资源，应用层配置数据等。X2网关接收到X2接口信息传输消息后，解析到其中包含X2 REMOVAL指示信息，则执行相应的X2移除操作，即将基站1和基站2的X2连接关系信息删除。或者，X2网关解析到所接收的X2接口信息传输消息中包含X2REMOVAL指示信息后，解析该消息中的封装的X2AP消息，若该封装的X2AP消息为X2 REMOVAL响应消息，则执行相应的X2移除操作，即将基站1和基站2的X2连接关系信息删除。In step 303, the base station 2 accepts the X2 connection between the base station 1 and the base station 1, and then returns an X2 removal response message to the X2 gateway. Similarly, the X2 removal response message is encapsulated and sent in an X2AP MESSAGE TRANSFER message. The X2 interface information transmission message includes base station identification information of the source and target base stations, that is, the eNB ID of the base station 2 and the base station 1. In addition, the message further includes X2 REMOVAL indication information, and the X2 REMOVAL indication information is used to indicate that the X2 REMOVAL process (or X2 REMOVAL response) message is included in the X2 interface information transmission message. Then, the base station 2 can delete information related to the X2 connection of the base station 1, such as resources, application layer configuration data, and the like. After receiving the X2 interface information transmission message, the X2 gateway parses the X2 REMOVAL indication information, and performs the corresponding X2 removal operation, that is, deletes the X2 connection relationship information of the base station 1 and the base station 2. Alternatively, the X2 gateway parses the X2 REMOVAL indication message in the received X2 interface information transmission message, and parses the encapsulated X2AP message in the message. If the encapsulated X2AP message is an X2 REMOVAL response message, perform the corresponding X2 removal. The operation is to delete the X2 connection relationship information of the base station 1 and the base station 2.

步骤304，X2网关将封装了X2移除响应消息的X2接口信息传输消息路由至基站1。基站1接收后可删除与基站2的X2连接相关的信息，如资源，应用层配置数据等。Step 304: The X2 gateway routes the X2 interface information transmission message encapsulating the X2 removal response message to the base station 1. After receiving, the base station 1 can delete information related to the X2 connection of the base station 2, such as resources, application layer configuration data, and the like.

进一步的，所述基站包括：宏基站，和/或家庭基站。Further, the base station includes: a macro base station, and/or a home base station.

图4给出了基站间通过X2网关建立X2连接情况下的错误指示方法，包括：Figure 4 shows the error indication method when the base station establishes an X2 connection through the X2 gateway, including:

步骤401，基站1要与基站2发起X2建立流程，由于需要通过X2网关建立代理的X2连接，则基站1首先发送X2接口信息传输消息给X2网关。该X2接口信息传输消息中包含源和目标基站的eNB ID，以及相应的X2建立消息。该消息的目标基站为基站2。In step 401, the base station 1 initiates an X2 establishment process with the base station 2, and needs to pass the X2.The gateway establishes the X2 connection of the proxy, and the base station 1 first sends an X2 interface information transmission message to the X2 gateway. The X2 interface information transmission message includes an eNB ID of the source and destination base stations, and a corresponding X2 setup message. The target base station of the message is base station 2.

步骤402，基站1想要向基站3发起X2移除流程，由于基站1和基站3之间通过X2网关建立X2连接，则基站1将该X2接口信息传输消息发送给X2网关。该X2接口信息传输消息中包含源和目标基站的eNB ID，以及相应的X2 REMOVAL消息，其中目标基站为基站3。Step 402: The base station 1 wants to initiate an X2 removal procedure to the base station 3. Since the base station 1 and the base station 3 establish an X2 connection through the X2 gateway, the base station 1 sends the X2 interface information transmission message to the X2 gateway. The X2 interface information transmission message includes an eNB ID of the source and destination base stations, and a corresponding X2 REMOVAL message, where the target base station is the base station 3.

步骤403，X2网关根据其维护的所连接基站的Enb ID与IP地址信息将包含X2 REMOVAL消息的X2接口信息传输消息路由至基站3。Step 403: The X2 gateway routes the X2 interface information transmission message including the X2 REMOVAL message to the base station 3 according to the Enb ID and IP address information of the connected base station it maintains.

步骤404，由于X2网关中保存维护有基站2的Enb ID与IP地址映射信息，其无法路由其从基站1接收的目标基站为基站2的X2接口信息传输消息。Step 404, because the X2 gateway saves and maintains the Enb ID and IP address mapping information of the base station 2, it cannot route the X2 interface information transmission message that the target base station received from the base station 1 is the base station 2.

步骤405，X2网关无法路由X2接口信息传输消息，则发送错误指示消息给基站1。该错误指示消息中至少包含其无法路由的X2接口信息传输消息中的目标基站标识信息(也即基站2的eNB ID)。可选的，该错误指示消息中还可包含基站1的eNB ID信息。基站1接收该错误指示信息后即可确定其发送给基站2的X2建立请求消息在X2网关处路由失败。可选的，基站1后续可向基站2发起TNL地址发现过程以继续完成其与基站2的X2连接建立过程。Step 405: The X2 gateway cannot send an X2 interface information transmission message, and sends an error indication message to the base station 1. The error indication message includes at least target base station identification information (ie, the eNB ID of the base station 2) in the X2 interface information transmission message that it cannot route. Optionally, the error indication message may further include eNB ID information of the base station 1. After receiving the error indication information, the base station 1 can determine that the X2 setup request message sent to the base station 2 fails to be routed at the X2 gateway. Optionally, the base station 1 may subsequently initiate a TNL address discovery process to the base station 2 to continue its X2 connection establishment process with the base station 2.

可见，通过采用上述方案，X2网关根据基站发来的X2移除过程消息来控制基站间的X2连接移除；如此，保证了X2网关能够及时获知基站之间的X2连接移除情况，使得X2网关能正常维护其连接基站间的X2连接信息，有效减少不必要的X2消息。It can be seen that, by adopting the above solution, the X2 gateway controls the X2 connection removal between the base stations according to the X2 removal process message sent by the base station; thus, the X2 gateway can timely know the X2 connection removal between the base stations, so that the X2 is enabled. The gateway can normally maintain the X2 connection information between the connected base stations, effectively reducing unnecessary X2 messages.

实施例二、Embodiment 2

本发明实施例提出一种X2接口消息处理方法，应用于基站，如图5所示，包括：The embodiment of the invention provides an X2 interface message processing method, which is applied to a base station, as shown in FIG. 5 .Shown, including:

步骤501：生成X2移除过程消息；Step 501: Generate an X2 removal process message.

步骤502：发送X2移除过程消息给X2网关，以使得所述X2网关根据所述X2移除过程消息移除对应的基站的X2接口的连接信息。Step 502: Send an X2 removal procedure message to the X2 gateway, so that the X2 gateway removes connection information of the X2 interface of the corresponding base station according to the X2 removal procedure message.

这里，所述X2移除过程消息包括以下至少一种：X2移除请求消息、X2移除响应消息、X2移除失败消息。Here, the X2 removal procedure message includes at least one of the following: an X2 removal request message, an X2 removal response message, and an X2 removal failure message.

可以理解的是，与实施例一相对应的，所述发送X2移除过程消息给X2网关也具备两种情况：It can be understood that, corresponding to the first embodiment, the sending X2 removal process message to the X2 gateway also has two situations:

情况一、将所述X2移除过程消息包含于X2接口信息传输消息中发送；所述X2移除指示信息用于指示所述X2接口信息传输消息中包含的消息类型、或者为用于控制X2网关执行X2移除操作的指示信息；所述消息类型包括以下几种：X2移除请求消息、X2移除响应消息、X2移除失败消息。Case 1: The X2 removal process message is sent in an X2 interface information transmission message, where the X2 removal indication information is used to indicate a message type included in the X2 interface information transmission message, or is used to control X2. The gateway performs indication information of the X2 removal operation; the message types include the following: an X2 removal request message, an X2 removal response message, and an X2 removal failure message.

情况二、所述发送X2移除过程消息给X2网关，包括：不包含于X2接口信息传输消息中，而是直接发送X2移除过程消息。Case 2: The sending the X2 removal process message to the X2 gateway includes: not being included in the X2 interface information transmission message, but directly sending the X2 removal process message.

其中，所述X2移除过程消息中携带有目标基站和/或源基站的标识信息。The X2 removal process message carries identifier information of the target base station and/or the source base station.

如图2所示，其中，基站(eNB)1和基站(eNB)2可以为家庭基站或宏基站，基站间通过X2网关建立X2连接情况下完成X2移除的方法。具体为：As shown in FIG. 2, the base station (eNB) 1 and the base station (eNB) 2 may be a home base station or a macro base station, and the method for completing X2 removal when the base station establishes an X2 connection through the X2 gateway. Specifically:

步骤201，基站1和基站2通过X2网关建立X2连接，若基站1检测到需移除其与基站2之间的X2连接，则发送X2移除请求消息给连接的X2网关，该X2移除请求消息不封装在X2AP消息传递消息中，而是直接发送给X2网关。Step 201: The base station 1 and the base station 2 establish an X2 connection through the X2 gateway. If the base station 1 detects that the X2 connection between the base station 1 and the base station 2 is to be removed, the X2 removal request message is sent to the connected X2 gateway, and the X2 is removed. The request message is not encapsulated in the X2AP messaging message, but is sent directly to the X2 gateway.

其中，所述X2移除请求消息中包含源和目标基站的基站标识信息，即基站1和基站2的eNB ID。The X2 removal request message includes base station identification information of the source and target base stations, whereThat is, the eNB IDs of the base station 1 and the base station 2.

步骤202，X2网关根据基站1发来的X2移除请求消息中的目标基站标识，将X2移除请求消息路由至基站2。Step 202: The X2 gateway routes the X2 removal request message to the base station 2 according to the target base station identifier in the X2 removal request message sent by the base station 1.

步骤203，当基站2根据接收到的X2移除请求消息确定将其与基站1之间的X2连接移除时，向X2网关回复X2移除响应消息。Step 203: When the base station 2 determines to remove the X2 connection between the base station 1 and the base station 1 according to the received X2 removal request message, the X2 removal response message is returned to the X2 gateway.

其中，所述X2移除响应消息同样不封装在X2AP消息传递消息中，而是直接发送给X2网关。所述X2移除响应消息中包含源基站和目标基站的基站标识信息。The X2 removal response message is also not encapsulated in the X2AP messaging message, but is directly sent to the X2 gateway. The X2 removal response message includes base station identification information of the source base station and the target base station.

并且，基站2可删除与基站1的X2连接相关信息，所述X2连接相关信息可以包括：资源、应用层配置数据。Moreover, the base station 2 can delete the information related to the X2 connection of the base station 1, and the X2 connection related information can include: resources, application layer configuration data.

步骤204，接收到X2移除响应消息后也可执行相应的X2移除操作，即将基站1和基站2的X2连接关系信息删除。Step 204: After receiving the X2 removal response message, the corresponding X2 removal operation may also be performed, that is, the X2 connection relationship information of the base station 1 and the base station 2 is deleted.

若后续X2网关检测到其与基站1(或基站2)之间的SCTP连接断开，则将发送X2释放消息给与基站1(或基站2)之间存在X2连接的基站。由于X2网关已将基站1和基站2的X2连接关系信息删除，X2网关不会向基站2(或基站1)发送X2释放消息。If the subsequent X2 gateway detects that the SCTP connection between it and base station 1 (or base station 2) is disconnected, an X2 release message will be sent to the base station with the X2 connection between base station 1 (or base station 2). Since the X2 gateway has deleted the X2 connection relationship information of the base station 1 and the base station 2, the X2 gateway does not send an X2 release message to the base station 2 (or the base station 1).

步骤205，X2网关根据接收的X2移除响应消息中的目标基站标识将X2移除响应消息路由至基站1。Step 205: The X2 gateway routes the X2 removal response message to the base station 1 according to the target base station identifier in the received X2 removal response message.

基站1接收后可删除与基站2的X2连接相关的信息，如资源，应用层配置数据等。After receiving, the base station 1 can delete information related to the X2 connection of the base station 2, such as resources, application layer configuration data, and the like.

图3描述基站间通过X2网关建立X2连接情况下完成X2移除的方法，包括：FIG. 3 illustrates a method for completing X2 removal when an X2 connection is established between the base stations through an X2 gateway, including:

步骤301，基站1和基站2通过X2网关连接，若基站1检测到需移除其与基站2之间的X2连接，则发送X2移除请求消息给其连接的X2网关，具体的，该X2移除请求消息封装在X2接口信息传输消息中发送。该X2接口信息传输消息中包含源和目标基站的基站标识信息，即基站1和基站2的eNB ID。可选的，该消息中还包括X2移除指示信息，该X2移除指示信息用于指示该X2接口信息传输消息中包含的是X2REMOVAL过程(或X2 REMOVAL请求)消息。Step 301, the base station 1 and the base station 2 are connected by the X2 gateway. If the base station 1 detects that the X2 connection between the base station 1 and the base station 2 is to be removed, the X2 removal request message is sent to the connected X2 gateway. Specifically, the X2 The removal request message is encapsulated and sent in the X2 interface information transmission message.The X2 interface information transmission message includes base station identification information of the source and target base stations, that is, the eNB IDs of the base station 1 and the base station 2. Optionally, the message further includes X2 removal indication information, where the X2 removal indication information is used to indicate that the X2 REMOVAL process (or X2 REMOVAL request) message is included in the X2 interface information transmission message.

步骤302，X2网关接收X2接口信息传输消息后根据该消息中的目标基站标识信息将该消息路由至基站2。Step 302: After receiving the X2 interface information transmission message, the X2 gateway routes the message to the base station 2 according to the target base station identification information in the message.

步骤303，基站2接受将其与基站1之间的X2连接移除，则向X2网关回复X2移除响应消息。类似的，该X2移除响应消息封装在X2AP消息传递(X2AP MESSAGE TRANSFER)消息中发送。该X2接口信息传输消息中包含源和目标基站的基站标识信息，即基站2和基站1的eNB ID。另外，该消息中还包含X2 REMOVAL指示信息，该X2 REMOVAL指示信息用于指示该X2接口信息传输消息中包含的是X2 REMOVAL过程(或X2 REMOVAL响应)消息。然后，基站2可删除与基站1的X2连接相关的信息，如资源，应用层配置数据等。X2网关接收到X2接口信息传输消息后，解析到其中包含X2 REMOVAL指示信息，则执行相应的X2移除操作，即将基站1和基站2的X2连接关系信息删除。或者，X2网关解析到所接收的X2接口信息传输消息中包含X2 REMOVAL指示信息后，解析该消息中的封装的X2AP消息，若该封装的X2AP消息为X2 REMOVAL响应消息，则执行相应的X2移除操作，即将基站1和基站2的X2连接关系信息删除。In step 303, the base station 2 accepts the X2 connection between the base station 1 and the base station 1, and then returns an X2 removal response message to the X2 gateway. Similarly, the X2 removal response message is encapsulated and sent in an X2AP MESSAGE TRANSFER message. The X2 interface information transmission message includes base station identification information of the source and target base stations, that is, the eNB ID of the base station 2 and the base station 1. In addition, the message further includes X2 REMOVAL indication information, and the X2 REMOVAL indication information is used to indicate that the X2 REMOVAL process (or X2 REMOVAL response) message is included in the X2 interface information transmission message. Then, the base station 2 can delete information related to the X2 connection of the base station 1, such as resources, application layer configuration data, and the like. After receiving the X2 interface information transmission message, the X2 gateway parses the X2 REMOVAL indication information, and performs the corresponding X2 removal operation, that is, deletes the X2 connection relationship information of the base station 1 and the base station 2. Alternatively, the X2 gateway parses the X2 REMOVAL indication message in the received X2 interface information transmission message, and parses the encapsulated X2AP message in the message, and if the encapsulated X2AP message is an X2 REMOVAL response message, performs a corresponding X2 shift. In addition to the operation, the X2 connection relationship information of the base station 1 and the base station 2 is deleted.

步骤304，X2网关将封装了X2移除响应消息的X2接口信息传输消息路由至基站1。基站1接收后可删除与基站2的X2连接相关的信息，如资源，应用层配置数据等。Step 304: The X2 gateway routes the X2 interface information transmission message encapsulating the X2 removal response message to the base station 1. After receiving, the base station 1 can delete information related to the X2 connection of the base station 2, such as resources, application layer configuration data, and the like.

可见，通过采用上述方案，X2网关根据基站发来的X2移除过程消息来控制基站间的X2连接移除；如此，保证了X2网关能够及时获知基站之间的X2连接移除情况，使得X2网关能正常维护其连接基站间的X2连接信息，有效减少不必要的X2消息。It can be seen that, by adopting the above solution, the X2 gateway controls the X2 connection removal between the base stations according to the X2 removal process message sent by the base station; thus, the X2 gateway can ensure that the base can be learned in time.The X2 connection between the stations is removed, so that the X2 gateway can normally maintain the X2 connection information between the connected base stations, effectively reducing unnecessary X2 messages.

实施例三、Embodiment 3

本实施例提供了一种X2网关，如图6所示，所述X2网关包括：This embodiment provides an X2 gateway. As shown in FIG. 6, the X2 gateway includes:

接收单元61，用于接收到基站发送的X2移除过程消息；The receiving unit 61 is configured to receive an X2 removal process message sent by the base station;

处理单元62，用于根据所述X2移除过程消息移除对应的基站的X2接口的连接信息。The processing unit 62 is configured to remove connection information of the X2 interface of the corresponding base station according to the X2 removal procedure message.

所述X2移除过程消息包括以下至少一种：X2移除请求消息、X2移除响应消息、X2移除失败消息。The X2 removal process message includes at least one of the following: an X2 removal request message, an X2 removal response message, and an X2 removal failure message.

所述接收单元61，具体用于接收到X2接口信息传输消息；相应的，所述处理单元62，具体用于从所述X2接口信息传输信息中提取X2移除过程消息；其中，所述X2接口信息传输消息携带有X2移除指示信息；所述X2移除指示信息用于指示所述X2接口信息传输消息中包含的消息类型、或者为用于控制X2网关执行X2移除操作的指示信息；所述消息类型包括以下几种：X2移除请求消息、X2移除响应消息、X2移除失败消息。The receiving unit 61 is specifically configured to receive an X2 interface information transmission message; correspondingly, the processing unit 62 is specifically configured to extract an X2 removal process message from the X2 interface information transmission information; wherein, the X2 The interface information transmission message carries X2 removal indication information, where the X2 removal indication information is used to indicate a message type included in the X2 interface information transmission message, or is an indication information for controlling an X2 gateway to perform an X2 removal operation. The message types include the following: an X2 removal request message, an X2 removal response message, and an X2 removal failure message.

所述处理单元62，具体用于接收到X2接口信息传输消息，若X2接口信息传输消息中包含有X2移除指示信息，则从所述X2接口信息传输消息中提取携带的源基站和目标基站的标识信息，根据所述源基站和目标基站的标识信息选取并移除源基站和目标基站之间的X2连接关系信息；The processing unit 62 is configured to receive the X2 interface information transmission message, and if the X2 interface information transmission message includes the X2 removal indication information, extract the carried source base station and the target base station from the X2 interface information transmission message. Identification information, selecting and removing X2 connection relationship information between the source base station and the target base station according to the identifier information of the source base station and the target base station;

或者，or,

接收到X2接口信息传输消息后，若X2接口信息传输消息中包含X2移除指示信息，则从所述X2接口信息传输消息中提取X2接口消息，当所述X2接口消息为X2移除响应消息，则从所述X2接口信息传输消息中提取携带的源基站和目标基站的标识信息，根据所述源基站和目标基站的标识信息选取并移除源基站和目标基站之间的X2连接关系信息。After receiving the X2 interface information transmission message, if the X2 interface information transmission message includes the X2 removal indication information, the X2 interface message is extracted from the X2 interface information transmission message, and the X2 interface message is an X2 removal response message. , from the X2 interface information transmissionAnd extracting the identifier information of the source base station and the target base station, and selecting and removing the X2 connection relationship information between the source base station and the target base station according to the identifier information of the source base station and the target base station.

所述接收单元61，具体用于接收基站直接发送的X2移除过程消息。所述X2移除过程消息中携带有目标基站和/或源基站的标识信息。The receiving unit 61 is specifically configured to receive an X2 removal process message directly sent by the base station. The X2 removal process message carries identification information of the target base station and/or the source base station.

所述接收单元61，还用于接收到X2移除响应消息；相应的，所述处理单元62，还用于从所述X2移除响应消息中提取携带的源基站和目标基站的标识信息，根据所述源基站和目标基站的标识信息选取并移除源基站和目标基站之间的X2连接关系信息。The receiving unit 61 is further configured to receive an X2 removal response message. Correspondingly, the processing unit 62 is further configured to extract, from the X2 removal response message, identifier information of the source base station and the target base station that are carried, And selecting and removing X2 connection relationship information between the source base station and the target base station according to the identifier information of the source base station and the target base station.

所述接收单元61，还用于接收到基站发来的X2接口消息；所述X2接口消息中携带有目标基站和源基站的标识信息；相应的，所述处理单元62，还用于判断所述X2接口消息是否符合第一预设条件，当无法正确执行所述X2接口流程时，发送错误指示消息至所述基站，其中，所述错误指示消息中包含所述源基站和目标基站的基站标识信息。The receiving unit 61 is further configured to receive an X2 interface message sent by the base station, where the X2 interface message carries the identifier information of the target base station and the source base station; correspondingly, the processing unit 62 is further configured to determine the location Whether the X2 interface message meets the first preset condition, and when the X2 interface process cannot be correctly executed, sending an error indication message to the base station, where the error indication message includes the base station of the source base station and the target base station Identification information.

所述处理单元62，具体用于若无法处理所述X2接口消息，或者，无法路由所述X2接口消息，则无法正确执行所述X2接口流程。The processing unit 62 is specifically configured to: if the X2 interface message cannot be processed, or the X2 interface message cannot be queried, the X2 interface process cannot be correctly executed.

实施例四、Embodiment 4

本实施例提供了一种基站，如图7所示，所述基站包括：This embodiment provides a base station. As shown in FIG. 7, the base station includes:

处理单元71，用于生成X2移除过程消息；The processing unit 71 is configured to generate an X2 removal process message.

发送单元72，用于发送X2移除过程消息给X2网关，以使得所述X2网关根据所述X2移除过程消息移除对应的基站的X2接口的连接信息。The sending unit 72 is configured to send an X2 removal procedure message to the X2 gateway, so that the X2 gateway removes connection information of the X2 interface of the corresponding base station according to the X2 removal procedure message.

所述X2移除过程消息包括以下至少一种：X2移除请求消息、X2移除响应消息、X2移除失败消息。The X2 removal process message includes at least one of the following: an X2 removal request message, an X2 removal response message, and an X2 removal failure message.

所述发送单元72，具体用于将所述X2移除过程消息包含于X2接口信息传输消息中发送；所述X2移除指示信息用于指示所述X2接口信息传输消息中包含的消息类型、或者为用于控制X2网关执行X2移除操作的指示信息；所述消息类型包括以下几种：X2移除请求消息、X2移除响应消息、X2移除失败消息。The sending unit 72 is specifically configured to send the X2 removal process message to the X2 interface information transmission message, where the X2 removal indication information is used to indicate the X2 interface message.The message type included in the message or the instruction information for controlling the X2 gateway to perform the X2 removal operation; the message type includes the following: an X2 removal request message, an X2 removal response message, and an X2 removal failure. Message.

所述发送单元72，具体用于不将所述X2移除过程消息包含于X2接口信息传输消息中，而是直接发送X2移除过程消息。所述X2移除过程消息中携带有目标基站和/或源基站的标识信息。The sending unit 72 is specifically configured to not include the X2 removal process message in the X2 interface information transmission message, but directly send the X2 removal process message. The X2 removal process message carries identification information of the target base station and/or the source base station.

可见，通过采用上述方案，X2网关根据基站发来的X2移除过程消息来控制基站间的X2连接移除；如此，保证了X2网关能够及时获知基站之间的X2连接移除情况，使得X2网关能正常维护其连接基站间的X2连接信息，有效减少不必要的X2消息。It can be seen that, by adopting the above solution, the X2 gateway controls the X2 connection removal between the base stations according to the X2 removal process message sent by the base station; thus, the X2 gateway can timely know the X2 connection removal between the base stations, so that the X2 is enabled. The gateway can normally maintain the X2 connection information between the connected base stations, effectively reducing unnecessary X2 messages.

并且基站能正确识别所接收的错误指示消息对应的X2进程，使得基站正确执行X2接口功能。And the base station can correctly identify the X2 process corresponding to the received error indication message, so that the base station correctly performs the X2 interface function.

实施例五、Embodiment 5

本实施例提供了一种X2接口消息处理系统，如图8所示，所述系统包括：基站81及X2网关82；其中，The embodiment provides an X2 interface message processing system. As shown in FIG. 8, the system includes: a base station 81 and an X2 gateway 82.

所述X2网关81，用于接收到基站发送的X2移除过程消息；根据所述X2移除过程消息移除对应的基站的X2接口的连接信息；The X2 gateway 81 is configured to receive an X2 removal process message sent by the base station, and remove connection information of the X2 interface of the corresponding base station according to the X2 removal process message;

所述基站82，用于生成X2移除过程消息；发送X2移除过程消息给X2网关。The base station 82 is configured to generate an X2 removal process message, and send an X2 removal process message to the X2 gateway.

图9给出了本发明实施例所应用的场景之一，其中，通过图中可见，接入网由多个演进型基站(eNB)、多个家庭基站(HeNB)、X2网关以及HeNB网关组成接入网；eNB通过S1接口连接移动管理实体(MME)或服务网关(S-GW)，即eNB或HeNB之间通过X2接口传递消息，而eNB或HeNB与HeNB网关之间均采用S1接口传递消息。所述基站包括：宏基站，和/或家庭基站。FIG. 9 shows one of the scenarios applied by the embodiment of the present invention. The access network is composed of multiple evolved base stations (eNBs), multiple home base stations (HeNBs), X2 gateways, and HeNB gateways. The access network; the eNB connects to the mobility management entity (MME) or the serving gateway (S-GW) through the S1 interface, that is, the eNB or the HeNB transmits the message through the X2 interface, and the eNB or the HeNB and the HeNB gateway use the S1 interface to transmit the message. Message. The base station includes: a macro base station, and/or a home base station.

下面通过场景来针对本实施例提供的方法进行说明。The method provided in this embodiment will be described below through a scenario.

如图2所示，其中，基站(eNB)1和基站(eNB)2可以为家庭基站或宏基站，基站间通过X2网关建立X2连接情况下完成X2移除的方法。具体为：As shown in FIG. 2, the base station (eNB) 1 and the base station (eNB) 2 may be a home base station or a macro base station, and the method for completing X2 removal when the base station establishes an X2 connection through the X2 gateway. Specifically:

步骤201，基站1和基站2通过X2网关建立X2连接，若基站1检测到需移除其与基站2之间的X2连接，则发送X2移除请求消息给连接的X2网关，该X2移除请求消息不封装在X2AP消息传递消息中，而是直接发送给X2网关。Step 201: The base station 1 and the base station 2 establish an X2 connection through the X2 gateway. If the base station 1 detects that the X2 connection between the base station 1 and the base station 2 is to be removed, the X2 removal request message is sent to the connected X2 gateway, and the X2 is removed. The request message is not encapsulated in the X2AP messaging message, but is sent directly to the X2 gateway.

其中，所述X2移除请求消息中包含源和目标基站的基站标识信息，即基站1和基站2的eNB ID。The X2 removal request message includes base station identification information of the source and target base stations, that is, the eNB IDs of the base station 1 and the base station 2.

步骤202，X2网关根据基站1发来的X2移除请求消息中的目标基站标识，将X2移除请求消息路由至基站2。Step 202: The X2 gateway routes the X2 removal request message to the base station 2 according to the target base station identifier in the X2 removal request message sent by the base station 1.

步骤203，当基站2根据接收到的X2移除请求消息确定将其与基站1之间的X2连接移除时，向X2网关回复X2移除响应消息。Step 203: When the base station 2 determines to remove the X2 connection between the base station 1 and the base station 1 according to the received X2 removal request message, the X2 removal response message is returned to the X2 gateway.

其中，所述X2移除响应消息同样不封装在X2AP消息传递消息中，而是直接发送给X2网关。所述X2移除响应消息中包含源基站和目标基站的基站标识信息。The X2 removal response message is also not encapsulated in the X2AP messaging message, but is directly sent to the X2 gateway. The X2 removal response message includes base station identification information of the source base station and the target base station.

并且，基站2可删除与基站1的X2连接相关信息，所述X2连接相关信息可以包括：资源、应用层配置数据。Moreover, the base station 2 can delete the information related to the X2 connection of the base station 1, and the X2 connection related information can include: resources, application layer configuration data.

步骤204，接收到X2移除响应消息后也可执行相应的X2移除操作，即将基站1和基站2的X2连接关系信息删除。Step 204: After receiving the X2 removal response message, the corresponding X2 removal operation may also be performed, that is, the X2 connection relationship information of the base station 1 and the base station 2 is deleted.

若后续X2网关检测到其与基站1(或基站2)之间的SCTP连接断开，则将发送X2释放消息给与基站1(或基站2)之间存在X2连接的基站。由于X2网关已将基站1和基站2的X2连接关系信息删除，X2网关不会向基站2(或基站1)发送X2释放消息。If the subsequent X2 gateway detects that the SCTP connection between it and base station 1 (or base station 2) is disconnected, an X2 release message will be sent to the base station with the X2 connection between base station 1 (or base station 2). Since the X2 gateway has deleted the X2 connection relationship information of the base station 1 and the base station 2, the X2 gateway does not send an X2 release message to the base station 2 (or the base station 1).

步骤205，X2网关根据接收的X2移除响应消息中的目标基站标识将X2移除响应消息路由至基站1。Step 205: The X2 gateway routes the X2 removal response message to the base station 1 according to the target base station identifier in the received X2 removal response message.

基站1接收后可删除与基站2的X2连接相关的信息，如资源，应用层配置数据等。After receiving, the base station 1 can delete information related to the X2 connection of the base station 2, such as resources, application layer configuration data, and the like.

图3描述基站间通过X2网关建立X2连接情况下完成X2移除的方法，包括：FIG. 3 illustrates a method for completing X2 removal when an X2 connection is established between the base stations through an X2 gateway, including:

步骤301，基站1和基站2通过X2网关连接，若基站1检测到需移除其与基站2之间的X2连接，则发送X2移除请求消息给其连接的X2网关，具体的，该X2移除请求消息封装在X2接口信息传输消息中发送。该X2接口信息传输消息中包含源和目标基站的基站标识信息，即基站1和基站2的eNB ID。可选的，该消息中还包括X2移除指示信息，该X2移除指示信息用于指示该X2接口信息传输消息中包含的是X2 REMOVAL过程(或X2 REMOVAL请求)消息。Step 301, the base station 1 and the base station 2 are connected by the X2 gateway. If the base station 1 detects that the X2 connection between the base station 1 and the base station 2 is to be removed, the X2 removal request message is sent to the connected X2 gateway. Specifically, the X2 The removal request message is encapsulated and sent in the X2 interface information transmission message. The X2 interface information transmission message includes base station identification information of the source and target base stations, that is, the eNB IDs of the base station 1 and the base station 2. Optionally, the message further includes X2 removal indication information, where the X2 removal indication information is used to indicate that the X2 REMOVAL process (or X2 REMOVAL request) message is included in the X2 interface information transmission message.

步骤302，X2网关接收X2接口信息传输消息后根据该消息中的目标基站标识信息将该消息路由至基站2。Step 302: After receiving the X2 interface information transmission message, the X2 gateway routes the message to the base station 2 according to the target base station identification information in the message.

步骤303，基站2接受将其与基站1之间的X2连接移除，则向X2网关回复X2移除响应消息。类似的，该X2移除响应消息封装在X2AP消息传递(X2AP MESSAGE TRANSFER)消息中发送。该X2接口信息传输消息中包含源和目标基站的基站标识信息，即基站2和基站1的eNB ID。另外，该消息中还包含X2 REMOVAL指示信息，该X2 REMOVAL指示信息用于指示该X2接口信息传输消息中包含的是X2 REMOVAL过程(或X2 REMOVAL响应)消息。然后，基站2可删除与基站1的X2连接相关的信息，如资源，应用层配置数据等。X2网关接收到X2接口信息传输消息后，解析到其中包含X2 REMOVAL指示信息，则执行相应的X2移除操作，即将基站1和基站2的X2连接关系信息删除。或者，X2网关解析到所接收的X2接口信息传输消息中包含X2REMOVAL指示信息后，解析该消息中的封装的X2AP消息，若该封装的X2AP消息为X2 REMOVAL响应消息，则执行相应的X2移除操作，即将基站1和基站2的X2连接关系信息删除。In step 303, the base station 2 accepts the X2 connection between the base station 1 and the base station 1, and then returns an X2 removal response message to the X2 gateway. Similarly, the X2 removal response message is encapsulated and sent in an X2AP MESSAGE TRANSFER message. The X2 interface information transmission message includes base station identification information of the source and target base stations, that is, the eNB ID of the base station 2 and the base station 1. In addition, the message further includes X2 REMOVAL indication information, and the X2 REMOVAL indication information is used to indicate that the X2 REMOVAL process (or X2 REMOVAL response) message is included in the X2 interface information transmission message. Then, the base station 2 can delete information related to the X2 connection of the base station 1, such as resources, application layer configuration data, and the like. After receiving the X2 interface information transmission message, the X2 gateway parses the X2 REMOVAL indication information, and performs the corresponding X2 removal operation, that is, deletes the X2 connection relationship information of the base station 1 and the base station 2.Alternatively, the X2 gateway parses the X2 REMOVAL indication message in the received X2 interface information transmission message, and parses the encapsulated X2AP message in the message. If the encapsulated X2AP message is an X2 REMOVAL response message, perform the corresponding X2 removal. The operation is to delete the X2 connection relationship information of the base station 1 and the base station 2.

步骤304，X2网关将封装了X2移除响应消息的X2接口信息传输消息路由至基站1。基站1接收后可删除与基站2的X2连接相关的信息，如资源，应用层配置数据等。Step 304: The X2 gateway routes the X2 interface information transmission message encapsulating the X2 removal response message to the base station 1. After receiving, the base station 1 can delete information related to the X2 connection of the base station 2, such as resources, application layer configuration data, and the like.

进一步的，所述基站包括：宏基站，和/或家庭基站。Further, the base station includes: a macro base station, and/or a home base station.

图4给出了基站间通过X2网关建立X2连接情况下的错误指示方法，包括：Figure 4 shows the error indication method when the base station establishes an X2 connection through the X2 gateway, including:

步骤401，基站1要与基站2发起X2建立流程，由于需要通过X2网关建立代理的X2连接，则基站1首先发送X2接口信息传输消息给X2网关。该X2接口信息传输消息中包含源和目标基站的eNB ID，以及相应的X2建立消息。该消息的目标基站为基站2。In step 401, the base station 1 initiates an X2 establishment procedure with the base station 2. Since the X2 connection of the proxy needs to be established through the X2 gateway, the base station 1 first sends an X2 interface information transmission message to the X2 gateway. The X2 interface information transmission message includes an eNB ID of the source and destination base stations, and a corresponding X2 setup message. The target base station of the message is base station 2.

步骤402，基站1想要向基站3发起X2移除流程，由于基站1和基站3之间通过X2网关建立X2连接，则基站1将该X2接口信息传输消息发送给X2网关。该X2接口信息传输消息中包含源和目标基站的eNB ID，以及相应的X2 REMOVAL消息，其中目标基站为基站3。Step 402: The base station 1 wants to initiate an X2 removal procedure to the base station 3. Since the base station 1 and the base station 3 establish an X2 connection through the X2 gateway, the base station 1 sends the X2 interface information transmission message to the X2 gateway. The X2 interface information transmission message includes an eNB ID of the source and destination base stations, and a corresponding X2 REMOVAL message, where the target base station is the base station 3.

步骤403，X2网关根据其维护的所连接基站的Enb ID与IP地址信息将包含X2 REMOVAL消息的X2接口信息传输消息路由至基站3。Step 403: The X2 gateway routes the X2 interface information transmission message including the X2 REMOVAL message to the base station 3 according to the Enb ID and IP address information of the connected base station it maintains.

步骤404，由于X2网关中保存维护有基站2的Enb ID与IP地址映射信息，其无法路由其从基站1接收的目标基站为基站2的X2接口信息传输消息。Step 404, because the X2 gateway saves and maintains the Enb ID and IP address mapping information of the base station 2, it cannot route the X2 interface information transmission message that the target base station received from the base station 1 is the base station 2.

步骤405，X2网关无法路由X2接口信息传输消息，则发送错误指示消息给基站1。该错误指示消息中至少包含其无法路由的X2接口信息传输消息中的目标基站标识信息(也即基站2的eNB ID)。可选的，该错误指示消息中还可包含基站1的eNB ID信息。基站1接收该错误指示信息后即可确定其发送给基站2的X2建立请求消息在X2网关处路由失败。可选的，基站1后续可向基站2发起TNL地址发现过程以继续完成其与基站2的X2连接建立过程。Step 405: The X2 gateway cannot send an X2 interface information transmission message, and sends an error indication message to the base station 1. The error indication message contains at least X2 interface information that cannot be routed.The target base station identification information (ie, the eNB ID of the base station 2) in the transmission message. Optionally, the error indication message may further include eNB ID information of the base station 1. After receiving the error indication information, the base station 1 can determine that the X2 setup request message sent to the base station 2 fails to be routed at the X2 gateway. Optionally, the base station 1 may subsequently initiate a TNL address discovery process to the base station 2 to continue its X2 connection establishment process with the base station 2.

可见，通过采用上述方案，X2网关根据基站发来的X2移除过程消息来控制基站间的X2连接移除；如此，保证了X2网关能够及时获知基站之间的X2连接移除情况，使得X2网关能正常维护其连接基站间的X2连接信息，有效减少不必要的X2消息。It can be seen that, by adopting the above solution, the X2 gateway controls the X2 connection removal between the base stations according to the X2 removal process message sent by the base station; thus, the X2 gateway can timely know the X2 connection removal between the base stations, so that the X2 is enabled. The gateway can normally maintain the X2 connection information between the connected base stations, effectively reducing unnecessary X2 messages.

并且基站能正确识别所接收的错误指示消息对应的X2进程，使得基站正确执行X2接口功能。And the base station can correctly identify the X2 process corresponding to the received error indication message, so that the base station correctly performs the X2 interface function.

在本申请所提供的几个实施例中，应该理解到，所揭露的设备和方法，可以通过其它的方式实现。以上所描述的设备实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，如：多个单元或组件可以结合，或可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的各组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口，设备或单元的间接耦合或通信连接，可以是电性的、机械的或其它形式的。In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.

上述作为分离部件说明的单元可以是、或也可以不是物理上分开的，作为单元显示的部件可以是、或也可以不是物理单元，即可以位于一个地方，也可以分布到多个网络单元上；可以根据实际的需要选择其中的部分或全部单元来实现本实施例方案的目的。The units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

另外，在本发明各实施例中的各功能单元可以全部集成在一个处理模块中，也可以是各单元分别单独作为一个单元，也可以两个或两个以上单元集成在一个单元中；上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may be separately used as one unit, or two or two.The upper unit is integrated in one unit; the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括：移动存储设备、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to the program instructions. The foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing storage device includes the following steps: the foregoing storage medium includes: a mobile storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. A medium that can store program code.

以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

工业实用性Industrial applicability

本发明实施例公开了一种X2接口消息处理方法、基站、X2网关及系统，能够接收到基站发送的X2移除过程消息；根据所述X2移除过程消息移除对应的基站的X2接口的连接信息。如此，保证了X2网关能够及时获知基站之间的X2连接移除情况，使得X2网关能正常维护其连接基站间的X2连接信息，有效减少不必要的X2消息。The embodiment of the invention discloses an X2 interface message processing method, a base station, an X2 gateway and a system, which can receive an X2 removal process message sent by the base station, and remove the X2 interface of the corresponding base station according to the X2 removal process message. Connection information. In this way, the X2 gateway can be informed of the X2 connection removal between the base stations in time, so that the X2 gateway can normally maintain the X2 connection information between the connected base stations, thereby effectively reducing unnecessary X2 messages.

Claims (30)

1. 一种X2接口消息处理方法，应用于X2网关，所述方法包括：An X2 interface message processing method is applied to an X2 gateway, and the method includes:

   接收到基站发送的X2移除过程消息；Receiving an X2 removal process message sent by the base station;

   根据所述X2移除过程消息移除对应的基站的X2接口的连接信息。The connection information of the X2 interface of the corresponding base station is removed according to the X2 removal procedure message.
2. 根据权利要求1所述的方法，其中，所述X2移除过程消息包括以下至少一种：X2移除请求消息、X2移除响应消息、X2移除失败消息。The method of claim 1, wherein the X2 removal procedure message comprises at least one of the following: an X2 removal request message, an X2 removal response message, and an X2 removal failure message.
3. 根据权利要求2所述的方法，其中，所述接收到基站发送的X2移除过程消息，包括：接收到X2接口信息传输消息，从所述X2接口信息传输信息中提取X2移除过程消息；The method of claim 2, wherein the receiving the X2 removal process message sent by the base station comprises: receiving an X2 interface information transmission message, and extracting an X2 removal process message from the X2 interface information transmission information;

   其中，所述X2接口信息传输消息携带有X2移除指示信息；所述X2移除指示信息用于指示所述X2接口信息传输消息中包含的消息类型、或者为用于控制X2网关执行X2移除操作的指示信息；The X2 interface information transmission message carries X2 removal indication information; the X2 removal indication information is used to indicate a message type included in the X2 interface information transmission message, or is used to control an X2 gateway to perform X2 shifting. In addition to instructions for operation;

   所述消息类型包括以下几种：X2移除请求消息、X2移除响应消息、X2移除失败消息。The message types include the following: an X2 removal request message, an X2 removal response message, and an X2 removal failure message.
4. 根据权利要求2或3所述的方法，其中，所述根据所述X2移除过程消息移除对应的基站的X2接口的连接信息，包括：The method according to claim 2 or 3, wherein the removing the connection information of the X2 interface of the corresponding base station according to the X2 removal procedure message comprises:

   接收到X2接口信息传输消息，若X2接口信息传输消息中包含有X2移除指示信息，则从所述X2接口信息传输消息中提取携带的源基站和目标基站的标识信息，根据所述源基站和目标基站的标识信息选取并移除源基站和目标基站之间的X2连接关系信息；Receiving the X2 interface information transmission message, if the X2 interface information transmission message includes the X2 removal indication information, extracting, from the X2 interface information transmission message, the identifier information of the source base station and the target base station, according to the source base station And identifying, by the identifier information of the target base station, the X2 connection relationship information between the source base station and the target base station;

   或者，接收到X2接口信息传输消息后，若X2接口信息传输消息中包含X2移除指示信息，则从所述X2接口信息传输消息中提取X2接口消息，当所述X2接口消息为X2移除响应消息，则从所述X2接口信息传输消息中提取携带的源基站和目标基站的标识信息，根据所述源基站和目标基站的标识信息选取并移除源基站和目标基站之间的X2连接关系信息。Or, after receiving the X2 interface information transmission message, if the X2 interface information transmission message includes the X2 removal indication information, extracting the X2 interface message from the X2 interface information transmission message, when the X2 interface message is removed by X2 And responding to the message, extracting the identifier information of the source base station and the target base station from the X2 interface information transmission message, and selecting and removing the X2 connection between the source base station and the target base station according to the identifier information of the source base station and the target base station. turn offDepartment information.
5. 根据权利要求1所述的方法，其中，所述接收到基站发送的X2移除过程消息，包括：X2网关接收基站直接发送的X2移除过程消息。The method according to claim 1, wherein the receiving the X2 removal procedure message sent by the base station comprises: the X2 gateway receiving an X2 removal procedure message directly sent by the base station.
6. 根据权利要求5所述的方法，其中，所述X2移除过程消息中携带有目标基站和/或源基站的标识信息。The method according to claim 5, wherein the X2 removal process message carries identification information of a target base station and/or a source base station.
7. 根据权利要求5或6所述的方法，其中，所述方法还包括：The method of claim 5 or 6, wherein the method further comprises:

   接收到X2移除响应消息，则从所述X2移除响应消息中提取携带的源基站和目标基站的标识信息，根据所述源基站和目标基站的标识信息选取并移除源基站和目标基站之间的X2连接关系信息。Receiving the X2 removal response message, extracting the identification information of the source base station and the target base station carried from the X2 removal response message, and selecting and removing the source base station and the target base station according to the identifier information of the source base station and the target base station. Information about the relationship between the X2 connections.
8. 根据权利要求1所述的方法，其中，所述方法还包括：The method of claim 1 wherein the method further comprises:

   接收到基站发来的X2接口消息；所述X2接口消息中携带有目标基站和/或源基站的标识信息；Receiving an X2 interface message sent by the base station; the X2 interface message carries identifier information of the target base station and/or the source base station;

   当无法正确执行所述X2接口流程时，发送错误指示消息至所述基站，其中，所述错误指示消息中包含所述源基站和/或目标基站的基站标识信息。When the X2 interface process cannot be correctly performed, an error indication message is sent to the base station, where the error indication message includes base station identification information of the source base station and/or the target base station.
9. 根据权利要求8所述的方法，其中，所述无法正确执行所述X2接口流程，包括：无法处理所述X2接口消息；或者，无法路由所述X2接口消息。The method according to claim 8, wherein the X2 interface process cannot be correctly executed, including: the X2 interface message cannot be processed; or the X2 interface message cannot be routed.
10. 一种X2接口消息处理方法，应用于基站，所述方法包括：An X2 interface message processing method is applied to a base station, and the method includes:

    生成X2移除过程消息；Generate an X2 removal process message;

    发送X2移除过程消息给X2网关，以使得所述X2网关根据所述X2移除过程消息移除对应的基站的X2接口的连接信息。Sending an X2 removal procedure message to the X2 gateway, so that the X2 gateway removes connection information of the X2 interface of the corresponding base station according to the X2 removal procedure message.
11. 根据权利要求10所述的方法，其中，所述X2移除过程消息包括以下至少一种：X2移除请求消息、X2移除响应消息、X2移除失败消息。The method of claim 10, wherein the X2 removal procedure message comprises at least one of the following: an X2 removal request message, an X2 removal response message, and an X2 removal failure message.
12. 根据权利要求10所述的方法，其中，所述发送X2移除过程消息给X2网关，包括：The method of claim 10, wherein the sending the X2 removal process message to the X2 gateway comprises:

    将所述X2移除过程消息包含于X2接口信息传输消息中发送；所述X2移除指示信息用于指示所述X2接口信息传输消息中包含的消息类型、或者为用于控制X2网关执行X2移除操作的指示信息；And sending the X2 removal process message to the X2 interface information transmission message, where the X2 removal indication information is used to indicate a message type included in the X2 interface information transmission message, or to perform X2 for controlling the X2 gateway. Instructions for removing the operation;

    所述消息类型包括以下几种：X2移除请求消息、X2移除响应消息、X2移除失败消息。The message types include the following: an X2 removal request message, an X2 removal response message, and an X2 removal failure message.
13. 根据权利要求10所述的方法，其中，所述发送X2移除过程消息给X2网关，包括：不包含于X2接口信息传输消息中，而是直接发送X2移除过程消息。The method of claim 10, wherein the sending the X2 removal procedure message to the X2 gateway comprises: not including in the X2 interface information transmission message, but directly transmitting the X2 removal procedure message.
14. 根据权利要求13所述的方法，其中，所述X2移除过程消息中携带有目标基站和/或源基站的标识信息。The method according to claim 13, wherein the X2 removal procedure message carries identification information of a target base station and/or a source base station.
15. 一种X2网关，所述X2网关包括：An X2 gateway, the X2 gateway includes:

    接收单元，配置为接收到基站发送的X2移除过程消息；a receiving unit, configured to receive an X2 removal process message sent by the base station;

    处理单元，配置为根据所述X2移除过程消息移除对应的基站的X2接口的连接信息。The processing unit is configured to remove connection information of the X2 interface of the corresponding base station according to the X2 removal procedure message.
16. 根据权利要求15所述的X2网关，其中，所述X2移除过程消息包括以下至少一种：X2移除请求消息、X2移除响应消息、X2移除失败消息。The X2 gateway of claim 15, wherein the X2 removal procedure message comprises at least one of the following: an X2 removal request message, an X2 removal response message, and an X2 removal failure message.
17. 根据权利要求16所述的X2网关，其中，The X2 gateway according to claim 16, wherein

    所述接收单元，配置为接收到X2接口信息传输消息；The receiving unit is configured to receive an X2 interface information transmission message;

    相应的，所述处理单元，配置为从所述X2接口信息传输信息中提取X2移除过程消息；Correspondingly, the processing unit is configured to extract an X2 removal process message from the X2 interface information transmission information;

    其中，所述X2接口信息传输消息携带有X2移除指示信息；所述X2移除指示信息用于指示所述X2接口信息传输消息中包含的消息类型、或者为用于控制X2网关执行X2移除操作的指示信息；所述消息类型包括以下几种：X2移除请求消息、X2移除响应消息、X2移除失败消息。The X2 interface information transmission message carries X2 removal indication information, and the X2 removal indication information is used to indicate a message class included in the X2 interface information transmission message.Type, or indication information for controlling the X2 gateway to perform an X2 removal operation; the message types include the following: an X2 removal request message, an X2 removal response message, and an X2 removal failure message.
18. 根据权利要求16或17所述的X2网关，其中，所述处理单元，配置为接收到X2接口信息传输消息，若X2接口信息传输消息中包含有X2移除指示信息，则从所述X2接口信息传输消息中提取携带的源基站和目标基站的标识信息，根据所述源基站和目标基站的标识信息选取并移除源基站和目标基站之间的X2连接关系信息；The X2 gateway according to claim 16 or 17, wherein the processing unit is configured to receive an X2 interface information transmission message, and if the X2 interface information transmission message includes X2 removal indication information, from the X2 interface The information transmission message extracts the identifier information of the source base station and the target base station, and selects and removes the X2 connection relationship information between the source base station and the target base station according to the identifier information of the source base station and the target base station;

    或者，or,

    所述处理单元，配置为接收到X2接口信息传输消息后，若X2接口信息传输消息中包含X2移除指示信息，则从所述X2接口信息传输消息中提取X2接口消息，当所述X2接口消息为X2移除响应消息，则从所述X2接口信息传输消息中提取携带的源基站和目标基站的标识信息，根据所述源基站和目标基站的标识信息选取并移除源基站和目标基站之间的X2连接关系信息。The processing unit is configured to: after receiving the X2 interface information transmission message, if the X2 interface information transmission message includes the X2 removal indication information, extract the X2 interface message from the X2 interface information transmission message, when the X2 interface The message is an X2 removal response message, and the identifier information of the source base station and the target base station is extracted from the X2 interface information transmission message, and the source base station and the target base station are selected and removed according to the identifier information of the source base station and the target base station. Information about the relationship between the X2 connections.
19. 根据权利要求15所述的X2网关，其中，所述接收单元，配置为接收基站直接发送的X2移除过程消息。The X2 gateway according to claim 15, wherein the receiving unit is configured to receive an X2 removal procedure message directly sent by the base station.
20. 根据权利要求19所述的X2网关，其中，所述X2移除过程消息中携带有目标基站和/或源基站的标识信息。The X2 gateway according to claim 19, wherein the X2 removal procedure message carries identification information of a target base station and/or a source base station.
21. 根据权利要求19或20所述的X2网关，其中，所述接收单元，配置为接收到X2移除响应消息；The X2 gateway according to claim 19 or 20, wherein the receiving unit is configured to receive an X2 removal response message;

    相应的，所述处理单元，配置为从所述X2移除响应消息中提取携带的源基站和目标基站的标识信息，根据所述源基站和目标基站的标识信息选取并移除源基站和目标基站之间的X2连接关系信息。Correspondingly, the processing unit is configured to extract, from the X2 removal response message, identifier information of the source base station and the target base station, and select and remove the source base station and the target according to the identifier information of the source base station and the target base station. X2 connection relationship information between base stations.
22. 根据权利要求15所述的X2网关，其中，所述接收单元，配置为接收到基站发来的X2接口消息；所述X2接口消息中携带有目标基站和源基站的标识信息；The X2 gateway according to claim 15, wherein said receiving unit is configuredReceiving the X2 interface message sent by the base station; the X2 interface message carries the identifier information of the target base station and the source base station;

    相应的，所述处理单元，配置为判断所述X2接口消息是否符合第一预设条件，当无法正确执行所述X2接口流程时，发送错误指示消息至所述基站，其中，所述错误指示消息中包含所述源基站和目标基站的基站标识信息。Correspondingly, the processing unit is configured to determine whether the X2 interface message meets the first preset condition, and when the X2 interface process cannot be correctly executed, sending an error indication message to the base station, where the error indication The message includes base station identification information of the source base station and the target base station.
23. 根据权利要求22所述的X2网关，其中，所述处理单元，配置为若无法处理所述X2接口消息，或者，无法路由所述X2接口消息，则无法正确执行所述X2接口流程。The X2 gateway according to claim 22, wherein the processing unit is configured to fail to correctly execute the X2 interface flow if the X2 interface message cannot be processed or the X2 interface message cannot be routed.
24. 一种基站，所述基站包括：A base station, the base station comprising:

    处理单元，配置为生成X2移除过程消息；a processing unit configured to generate an X2 removal process message;

    发送单元，配置为发送X2移除过程消息给X2网关，以使得所述X2网关根据所述X2移除过程消息移除对应的基站的X2接口的连接信息。And a sending unit, configured to send an X2 removal procedure message to the X2 gateway, so that the X2 gateway removes connection information of the X2 interface of the corresponding base station according to the X2 removal procedure message.
25. 根据权利要求24所述的基站，其中，所述X2移除过程消息包括以下至少一种：X2移除请求消息、X2移除响应消息、X2移除失败消息。The base station according to claim 24, wherein the X2 removal procedure message comprises at least one of the following: an X2 removal request message, an X2 removal response message, and an X2 removal failure message.
26. 根据权利要求24所述的基站，其中，所述发送单元，配置为将所述X2移除过程消息包含于X2接口信息传输消息中发送；所述X2移除指示信息用于指示所述X2接口信息传输消息中包含的消息类型、或者为用于控制X2网关执行X2移除操作的指示信息；The base station according to claim 24, wherein the sending unit is configured to include the X2 removal process message in an X2 interface information transmission message, where the X2 removal indication information is used to indicate the X2 interface The type of the message included in the information transmission message or the indication information for controlling the X2 gateway to perform the X2 removal operation;

    所述消息类型包括以下几种：X2移除请求消息、X2移除响应消息、X2移除失败消息。The message types include the following: an X2 removal request message, an X2 removal response message, and an X2 removal failure message.
27. 根据权利要求24所述的基站，其中，所述发送单元，配置为不将所述X2移除过程消息包含于X2接口信息传输消息中，而是直接发送X2移除过程消息。The base station according to claim 24, wherein the sending unit is configured not to include the X2 removal process message in an X2 interface information transmission message, but directly sendX2 removes the process message.
28. 根据权利要求27所述的方法，其中，所述X2移除过程消息中携带有目标基站和/或源基站的标识信息。The method according to claim 27, wherein the X2 removal procedure message carries identification information of a target base station and/or a source base station.
29. 一种X2接口消息处理系统，所述系统包括：基站及X2网关；其中，An X2 interface message processing system, the system comprising: a base station and an X2 gateway; wherein

    所述X2网关，配置为接收到基站发送的X2移除过程消息；根据所述X2移除过程消息移除对应的基站的X2接口的连接信息；The X2 gateway is configured to receive an X2 removal process message sent by the base station, and remove connection information of the X2 interface of the corresponding base station according to the X2 removal process message;

    所述基站，配置为生成X2移除过程消息；发送X2移除过程消息给X2网关。The base station is configured to generate an X2 removal procedure message; and send an X2 removal procedure message to the X2 gateway.
30. 根据权利要求29所述的系统，其中，所述基站包括：宏基站，和/或家庭基站。The system of claim 29, wherein the base station comprises: a macro base station, and/or a home base station.

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