WO2013139094A1 - Handover processing method and base station subsystem related to local call local switch - Google Patents

Handover processing method and base station subsystem related to local call local switch Download PDF

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Publication number
WO2013139094A1
WO2013139094A1 PCT/CN2012/077689 CN2012077689W WO2013139094A1 WO 2013139094 A1 WO2013139094 A1 WO 2013139094A1 CN 2012077689 W CN2012077689 W CN 2012077689W WO 2013139094 A1 WO2013139094 A1 WO 2013139094A1
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Prior art keywords
base station
station subsystem
terminal
user plane
plane data
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PCT/CN2012/077689
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French (fr)
Chinese (zh)
Inventor
李靖
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中兴通讯股份有限公司
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Publication of WO2013139094A1 publication Critical patent/WO2013139094A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0079—Transmission or use of information for re-establishing the radio link in case of hand-off failure or rejection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • 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 field of communications, and in particular, to a handover processing method and a base station subsystem related to local exchange local exchange.
  • the core network Core Network, referred to as CN
  • the Access Network Access Network
  • the core network includes a mobile switching center.
  • MSC Server Mobile Switching Center Server
  • MGW Media Gate Way
  • the access network includes Base Station Subsystem (BSS) and Mobile Station (Mobile Station, referred to as For MS).
  • BSS Base Station Subsystem
  • MS Mobile Station
  • the core network and the access network are connected through the A port, and the base station subsystem communicates with the mobile terminal through the Um interface. As shown in Figure 1.
  • LCLS LCLS
  • the BSS After the call is established, if the local call local exchange function is not used, the BSS will transmit the user plane data received from the MS to the MGW, and transmit the user plane data received from the MGW to the MS.
  • the BSS transmits the user plane data received from one MS to the other side of the MS, thereby avoiding the process of transmitting user plane data to the MGW, thereby reducing the overhead of the transmission resource. as shown in picture 2.
  • the local switching function After using the local switching function, when one of the MSs of the call needs to switch to another BSS, since both parties of the call will be served by different BSSs after the handover, the local switching function will need to be released during the handover. In the process of the handover, for the MS that has not been switched, the BSS needs to simultaneously send the received uplink user plane data to the core network and the local link.
  • 3GPP TS 48.008 V10.4.0 already includes a method for triggering the BSS to simultaneously send uplink user plane data to the core network and the local link, and when the BSS receives the handover command, the uplink received by the MS that has never switched. User plane data is sent to both the core network and the local link. But by The BSS cannot know the handover status of the handover MS, and the BSS cannot adjust the transmission mode of the uplink user plane data of the terminal in time.
  • the BSS of the MS that has not switched on the other side needs to receive the uplink user plane data and send it to the core network and the local link simultaneously, but The BSS cannot adjust the way in which the uplink user plane data of the terminal is sent in time.
  • the technical problem to be solved by the embodiments of the present invention is to provide a handover processing method and a base station subsystem related to a local call local exchange, and the BSS of the MS that has not been switched between the two ends of the local link call cannot be adjusted in time to the terminal.
  • an embodiment of the present invention provides a handover processing method, including: a first terminal under a first base station subsystem and a second terminal under a second base station subsystem have a local call exchange function The local link keeps a call, the first terminal performs a base station subsystem handover, and the uplink user plane data of the second terminal received by the second base station subsystem is dual-issued to the core network and the local link, where After the first terminal fails to be switched, the second base station subsystem replaces the sending manner of the uplink user plane data of the second terminal with the sending mode used before the base station subsystem switches the first terminal.
  • the second base station subsystem sends the uplink user plane data of the second terminal by using the changed transmission manner.
  • the sending manner used by the second base station subsystem before the base station subsystem handover by the first terminal is to send user plane data to the core network or send user plane data to the local link, or simultaneously The core network and the local link simultaneously transmit user plane data.
  • the first base station subsystem and the second base station subsystem belong to the same physical entity.
  • the above method can also have the following characteristics: After the first terminal fails to switch, the first base station subsystem notifies the second base station subsystem that the first terminal fails to switch.
  • the second base station subsystem notifies the mobile switching center of the transmission mode of the uplink user plane data of the second terminal after the replacement.
  • an embodiment of the present invention further provides a base station subsystem, including a data transmission control module, where the data transmission control module is configured to: after the managed terminal fails to switch, The transmission mode of the uplink user plane data is replaced with the transmission mode used before the base station subsystem handover is performed on the opposite end.
  • the above base station subsystem may also have the following features:
  • the sending mode used before the terminal performs the base station subsystem switching is to send user plane data to the core network or send user plane data to the local link or to the core network and the local chain at the same time.
  • the road simultaneously sends user plane data.
  • the above base station subsystem may also have the following features:
  • the data transmission control module is further configured to notify the base station subsystem of the opposite end of the terminal after the managed terminal performs a local link call with the opposite end of another base station subsystem and performs a base station subsystem handover failure. The switch failed.
  • the above base station subsystem may also have the following features:
  • the data transmission control module is further configured to notify the mobile switching center of the changed transmission mode.
  • the BSS of the MS that has not been switched through the two ends of the local link call can adjust the transmission mode of the uplink user plane data of the terminal in time to improve system performance.
  • FIG. 1 is a schematic diagram of an existing GSM mobile communication system architecture
  • Figure 2 is a schematic diagram of user plane data transmission after using the local call local switching function; 3 is a schematic diagram of a handover processing method;
  • FIG. 4 is a schematic structural diagram of a base station subsystem according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a network structure in the GSM system in the first embodiment. Preferred embodiment of the invention
  • the handover processing method includes: a first terminal under the first base station subsystem and a second terminal under the second base station subsystem hold a call through a local link having a local call local exchange function, where the a terminal performs base station subsystem switching, and the uplink user plane data of the second terminal received by the second base station subsystem is dual-transmitted to the core network and the local link, where the first terminal fails to switch after the first terminal fails
  • the second base station subsystem replaces the transmission mode of the uplink user plane data of the second terminal with the transmission mode used before the base station subsystem handover by the first terminal.
  • the second base station subsystem sends the uplink user plane data of the second terminal by using the changed transmission manner.
  • the sending manner used by the second base station subsystem before the base station subsystem handover by the first terminal is to send user plane data to the core network or send user plane data to the local link, or simultaneously The core network and the local link simultaneously transmit user plane data.
  • the first base station subsystem and the second base station subsystem belong to the same physical entity.
  • the second base station subsystem may automatically learn whether the first terminal handover fails, or after the first terminal fails to switch, the first base station subsystem notifies the second base station subsystem of the first terminal The switch failed.
  • the second base station subsystem notifies the mobile switching center of the transmission mode of the uplink user plane data of the second terminal after the replacement.
  • the base station subsystem in this solution includes a data transmission control module.
  • the data transmission control module is configured to: after the managed terminal performs a local link call with the opposite end of the other base station subsystem, and the opposite end performs the base station subsystem handover failure, the uplink user plane of the terminal is configured.
  • the data transmission mode is replaced with a transmission mode used before the base station subsystem handover is performed at the opposite end.
  • the sending mode used before the terminal performs the base station subsystem switching is to send user plane data to the core network or send user plane data to the local link or to the core network and the local chain at the same time.
  • the data transmission control module is further configured to notify the base station subsystem of the opposite end of the terminal after the managed terminal performs a local link call with the opposite end of another base station subsystem and performs a base station subsystem handover failure. The switch failed.
  • the data transmission control module is further configured to notify the mobile switching center of the transmission mode after the replacement of the uplink user plane data of the terminal.
  • the GSM system of this solution includes: MS1 and MS2, BSS1 (serving MS1), BSS2 (serving MS2), and 1 MSC and 1 MGW.
  • MS1 and MS2 are a pair of two terminals that are talking, MS1.
  • MS2 is a terminal that does not have a handover.
  • BSS1 and BSS2 are logically two different BSSs, but are physically the same BSS. As shown in Figure 5.
  • the BSS1 and the BSS2 are actually the same BSS, and the BSS2 simultaneously sends the uplink user plane data received from the MS2 to the core network and the local link.
  • the BSS1 receives the handover failure message from the MS1
  • the BSS2 changes the transmission mode of the uplink user plane data received from the MS2 to the transmission used by the BSS2 before the MS1 performs the handover of the base station subsystem. the way.
  • the BSS of the MS that has not been switched through the two ends of the local link call can adjust the transmission mode of the uplink user plane data of the terminal in time to improve system performance.

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

Abstract

A handover processing method and a base station subsystem (BSS) related to local call local switch. A first station under a first BSS and a second station under a second BSS maintain connected via a local link having a local call local switch feature. The first station performs a BSS handover. Uplink user plane data of the second station received by the second BSS is transmitted both to a core network and to the local link. When the first station fails in the handover, the second BSS replaces a transmission scheme for the uplink user plane data of the second station with the transmission scheme that was used by the first station prior to performing the BSS handover. The present solution allows the BSS of an MS in the two stations connected via the local link that has not performed the handover to adjust timely the transmission scheme for the uplink user plane data of the station, thus improving system performance.

Description

一种涉及本地通话本地交换的切换处理方法及基站子***  Handover processing method and base station subsystem involving local exchange local exchange
技术领域 Technical field
本发明涉及通信领域， 尤其涉及一种涉及本地通话本地交换的切换处理 方法及基站子***。  The present invention relates to the field of communications, and in particular, to a handover processing method and a base station subsystem related to local exchange local exchange.
背景技术 Background technique
在现有的全球移动通讯*** ( Global System for Mobile Communications, 简称为 GSM )中， 包含核心网（ Core Network, 简称为 CN )和接入网（ Access Network ) 两部分， 其中核心网包含移动交换中心 （ Mobile Switching Center Server, 简称为 MSC Server或 MSC )和媒体网关 （ Media Gate Way, 简称为 MGW ) , 接入网包含基站子***（ Base Station Subsystem, 简称为 BSS )和 移动终端 （Mobile Station, 简称为 MS ) 。 核心网与接入网之间通过 A口进 行连接， 基站子***与移动终端之间通过 Um接口进行通信。 如图 1所示。  In the existing Global System for Mobile Communications (GSM), the core network (Core Network, referred to as CN) and the Access Network (Access Network) are included, wherein the core network includes a mobile switching center. (Mobile Switching Center Server, referred to as MSC Server or MSC) and Media Gate Way (MGW for short). The access network includes Base Station Subsystem (BSS) and Mobile Station (Mobile Station, referred to as For MS). The core network and the access network are connected through the A port, and the base station subsystem communicates with the mobile terminal through the Um interface. As shown in Figure 1.
目前为了节省传输资源， 引入了本地通话本地交换功能（ Local Call Local Currently, in order to save transmission resources, a local call local exchange function (Local Call Local) is introduced.
Switch, 简称 LCLS ) , 即不通过核心网的 MGW直接将本地通话的一方的用 户面语音发送给另一方。 GSM***在通话建立后， 若不使用本地通话本地交 换功能时， BSS会将从 MS收到的用户面数据传给 MGW, 并将从 MGW收 到的用户面数据传给 MS。 而在使用本地交换功能时， BSS会将从一侧 MS 收到的用户面数据传给另一侧 MS, 避免了将用户面数据传递给 MGW过程， 从而减少了从传输资源的开销。 如图 2所示。 Switch, referred to as LCLS, means that the user plane voice of one party of the local call is directly sent to the other party without passing through the MGW of the core network. After the call is established, if the local call local exchange function is not used, the BSS will transmit the user plane data received from the MS to the MGW, and transmit the user plane data received from the MGW to the MS. When the local switching function is used, the BSS transmits the user plane data received from one MS to the other side of the MS, thereby avoiding the process of transmitting user plane data to the MGW, thereby reducing the overhead of the transmission resource. as shown in picture 2.
在使用本地交换功能以后， 当通话的某一方 MS需要切换到另一个 BSS 时， 由于在切换后通话的双方将由不同的 BSS提供服务， 因此会导致在切换 过程中会需要释放本地交换功能。而在切换的过程中，对于未进行切换的 MS, BSS需要同时将收到的上行用户面数据同时发送给核心网和本地链路。  After using the local switching function, when one of the MSs of the call needs to switch to another BSS, since both parties of the call will be served by different BSSs after the handover, the local switching function will need to be released during the handover. In the process of the handover, for the MS that has not been switched, the BSS needs to simultaneously send the received uplink user plane data to the core network and the local link.
目前在 3GPP TS 48.008 V10.4.0已经包含了一种触发 BSS同时发送上行 用户面数据给核心网和本地链路的发放， 当 BSS收到切换命令后， 将从未进 行切换的 MS收到的上行用户面数据同时发送给核心网和本地链路。 但是由 于 BSS无法获知切换 MS的切换情况，导致 BSS无法及时调整对终端的上行 用户面数据的发送方式。 At present, 3GPP TS 48.008 V10.4.0 already includes a method for triggering the BSS to simultaneously send uplink user plane data to the core network and the local link, and when the BSS receives the handover command, the uplink received by the MS that has never switched. User plane data is sent to both the core network and the local link. But by The BSS cannot know the handover status of the handover MS, and the BSS cannot adjust the transmission mode of the uplink user plane data of the terminal in time.
发明内容 Summary of the invention
在使用本地交换功能以后， 当一侧 MS需要切换到另一个 BSS时， 对于 另一侧未进行切换的 MS的 BSS需要将收到上行用户面数据同时双发给核心 网和本地链路， 但是该 BSS无法及时调整对终端的上行用户面数据的发送方 式。  After the local switching function is used, when one side MS needs to switch to another BSS, the BSS of the MS that has not switched on the other side needs to receive the uplink user plane data and send it to the core network and the local link simultaneously, but The BSS cannot adjust the way in which the uplink user plane data of the terminal is sent in time.
本发明实施例要解决的技术问题是提供一种涉及本地通话本地交换的切 换处理方法及基站子***，解决通过本地链路通话的两端中未进行切换的 MS 的 BSS无法及时调整对终端的上行用户面数据的发送方式的问题。  The technical problem to be solved by the embodiments of the present invention is to provide a handover processing method and a base station subsystem related to a local call local exchange, and the BSS of the MS that has not been switched between the two ends of the local link call cannot be adjusted in time to the terminal. The problem of the way the uplink user plane data is sent.
为了解决上述技术问题， 本发明实施例提供了一种切换处理方法， 包括， 第一基站子***下的第一终端和第二基站子***下的第二终端通过具有本地 通话地本交换功能的本地链路保持通话，所述第一终端进行基站子***切换， 所述第二基站子***收到的所述第二终端的上行用户面数据向核心网和本地 链路双发， 其中， 所述第一终端切换失败后， 所述第二基站子***将所述第 二终端的上行用户面数据的发送方式更换为在所述第一终端进行基站子*** 切换前使用的发送方式。  In order to solve the above technical problem, an embodiment of the present invention provides a handover processing method, including: a first terminal under a first base station subsystem and a second terminal under a second base station subsystem have a local call exchange function The local link keeps a call, the first terminal performs a base station subsystem handover, and the uplink user plane data of the second terminal received by the second base station subsystem is dual-issued to the core network and the local link, where After the first terminal fails to be switched, the second base station subsystem replaces the sending manner of the uplink user plane data of the second terminal with the sending mode used before the base station subsystem switches the first terminal.
上述方法还可以具有以下特点：  The above method can also have the following characteristics:
所述第二基站子***使用更换后的发送方式发送所述第二终端的上行用 户面数据。  The second base station subsystem sends the uplink user plane data of the second terminal by using the changed transmission manner.
上述方法还可以具有以下特点：  The above method can also have the following characteristics:
所述第二基站子***在所述第一终端进行基站子***切换前使用的发送 方式是指向所述核心网的发送用户面数据或者向所述本地链路的发送用户面 数据再或者同时向所述核心网以及所述本地链路同时发送用户面数据。  The sending manner used by the second base station subsystem before the base station subsystem handover by the first terminal is to send user plane data to the core network or send user plane data to the local link, or simultaneously The core network and the local link simultaneously transmit user plane data.
上述方法还可以具有以下特点：  The above method can also have the following characteristics:
所述第一基站子***和所述第二基站子***属于同一物理实体。  The first base station subsystem and the second base station subsystem belong to the same physical entity.
上述方法还可以具有以下特点： 所述第一终端切换失败后， 所述第一基站子***通知所述第二基站子系 统所述第一终端切换失败。 The above method can also have the following characteristics: After the first terminal fails to switch, the first base station subsystem notifies the second base station subsystem that the first terminal fails to switch.
上述方法还可以具有以下特点：  The above method can also have the following characteristics:
所述第二基站子***更换对所述第二终端的上行用户面数据的发送方式 后将更换后的发送方式通知移动交换中心。  The second base station subsystem notifies the mobile switching center of the transmission mode of the uplink user plane data of the second terminal after the replacement.
为了解决上述技术问题， 本发明实施例还提供了一种基站子***， 包括 数据传输控制模块， 其中， 所述数据传输控制模块， 设置为在所管理的终端 切换失败后， 将所述终端的上行用户面数据的发送方式更换为在所述对端进 行基站子***切换前使用的发送方式。  In order to solve the above technical problem, an embodiment of the present invention further provides a base station subsystem, including a data transmission control module, where the data transmission control module is configured to: after the managed terminal fails to switch, The transmission mode of the uplink user plane data is replaced with the transmission mode used before the base station subsystem handover is performed on the opposite end.
上述基站子***还可以具有以下特点：  The above base station subsystem may also have the following features:
在所述终端进行基站子***切换前使用的发送方式是指向所述核心网的 发送用户面数据或者向所述本地链路的发送用户面数据再或者同时向所述核 心网以及所述本地链路同时发送用户面数据。  The sending mode used before the terminal performs the base station subsystem switching is to send user plane data to the core network or send user plane data to the local link or to the core network and the local chain at the same time. The road simultaneously sends user plane data.
上述基站子***还可以具有以下特点：  The above base station subsystem may also have the following features:
所述数据传输控制模块， 还设置为在所管理的终端与另一基站子***下 的对端进行本地链路通话并进行基站子***切换失败后， 通知所述对端的基 站子***所述终端切换失败。  The data transmission control module is further configured to notify the base station subsystem of the opposite end of the terminal after the managed terminal performs a local link call with the opposite end of another base station subsystem and performs a base station subsystem handover failure. The switch failed.
上述基站子***还可以具有以下特点：  The above base station subsystem may also have the following features:
所述数据传输控制模块， 还设置为将更换后的发送方式通知移动交换中 心。  The data transmission control module is further configured to notify the mobile switching center of the changed transmission mode.
本方案可以使通过本地链路通话的两端中未进行切换的 MS的 BSS及时 调整对终端的上行用户面数据的发送方式， 提高***性能。 附图概述  In this solution, the BSS of the MS that has not been switched through the two ends of the local link call can adjust the transmission mode of the uplink user plane data of the terminal in time to improve system performance. BRIEF abstract
图 1是现有的 GSM移动通讯***架构示意图；  1 is a schematic diagram of an existing GSM mobile communication system architecture;
图 2使用了本地通话本地交换功能后的用户面数据传输示意图； 图 3是切换处理方法示意图； Figure 2 is a schematic diagram of user plane data transmission after using the local call local switching function; 3 is a schematic diagram of a handover processing method;
图 4是本发明实施例的基站子***的结构示意图；  4 is a schematic structural diagram of a base station subsystem according to an embodiment of the present invention;
图 5是实施例一中的 GSM***中的网络结构示意图。 本发明的较佳实施方式  FIG. 5 is a schematic diagram of a network structure in the GSM system in the first embodiment. Preferred embodiment of the invention
如图 3所示， 切换处理方法包括： 第一基站子***下的第一终端和第二 基站子***下的第二终端通过具有本地通话地本交换功能的本地链路保持通 话， 所述第一终端进行基站子***切换， 所述第二基站子***收到的所述第 二终端的上行用户面数据向核心网和本地链路双发， 其中， 所述第一终端切 换失败后， 所述第二基站子***将所述第二终端的上行用户面数据的发送方 式更换为在所述第一终端进行基站子***切换前使用的发送方式。  As shown in FIG. 3, the handover processing method includes: a first terminal under the first base station subsystem and a second terminal under the second base station subsystem hold a call through a local link having a local call local exchange function, where the a terminal performs base station subsystem switching, and the uplink user plane data of the second terminal received by the second base station subsystem is dual-transmitted to the core network and the local link, where the first terminal fails to switch after the first terminal fails The second base station subsystem replaces the transmission mode of the uplink user plane data of the second terminal with the transmission mode used before the base station subsystem handover by the first terminal.
所述第二基站子***使用更换后的发送方式发送所述第二终端的上行用 户面数据。  The second base station subsystem sends the uplink user plane data of the second terminal by using the changed transmission manner.
所述第二基站子***在所述第一终端进行基站子***切换前使用的发送 方式是指向所述核心网的发送用户面数据或者向所述本地链路的发送用户面 数据再或者同时向所述核心网以及所述本地链路同时发送用户面数据。  The sending manner used by the second base station subsystem before the base station subsystem handover by the first terminal is to send user plane data to the core network or send user plane data to the local link, or simultaneously The core network and the local link simultaneously transmit user plane data.
所述第一基站子***和所述第二基站子***属于同一物理实体。 所述第 二基站子***可自动获知所述第一终端切换是否失败， 或者， 所述第一终端 切换失败后， 所述第一基站子***通知所述第二基站子***所述第一终端切 换失败。  The first base station subsystem and the second base station subsystem belong to the same physical entity. The second base station subsystem may automatically learn whether the first terminal handover fails, or after the first terminal fails to switch, the first base station subsystem notifies the second base station subsystem of the first terminal The switch failed.
所述第二基站子***更换对所述第二终端的上行用户面数据的发送方式 后将更换后的发送方式通知移动交换中心。  The second base station subsystem notifies the mobile switching center of the transmission mode of the uplink user plane data of the second terminal after the replacement.
如图 4所示， 本方案中的基站子***包括数据传输控制模块。 As shown in FIG. 4, the base station subsystem in this solution includes a data transmission control module.
所述数据传输控制模块， 设置为在所管理的终端与另一基站子***下的 对端进行本地链路通话并且所述对端进行基站子***切换失败后， 将所述终 端的上行用户面数据的发送方式更换为在所述对端进行基站子***切换前使 用的发送方式。 在所述终端进行基站子***切换前使用的发送方式是指向所述核心网的 发送用户面数据或者向所述本地链路的发送用户面数据再或者同时向所述核 心网以及所述本地链路同时发送用户面数据。 所述数据传输控制模块， 还设置为在所管理的终端与另一基站子***下 的对端进行本地链路通话并进行基站子***切换失败后， 通知所述对端的基 站子***所述终端切换失败。 The data transmission control module is configured to: after the managed terminal performs a local link call with the opposite end of the other base station subsystem, and the opposite end performs the base station subsystem handover failure, the uplink user plane of the terminal is configured. The data transmission mode is replaced with a transmission mode used before the base station subsystem handover is performed at the opposite end. The sending mode used before the terminal performs the base station subsystem switching is to send user plane data to the core network or send user plane data to the local link or to the core network and the local chain at the same time. The road simultaneously sends user plane data. The data transmission control module is further configured to notify the base station subsystem of the opposite end of the terminal after the managed terminal performs a local link call with the opposite end of another base station subsystem and performs a base station subsystem handover failure. The switch failed.
所述数据传输控制模块， 还设置为更换对所述终端的上行用户面数据的 发送方式后将更换后的发送方式通知移动交换中心。  The data transmission control module is further configured to notify the mobile switching center of the transmission mode after the replacement of the uplink user plane data of the terminal.
下面通过具体实施例详细说明本方案。 The present solution will be described in detail below through specific embodiments.
实施例一  Embodiment 1
本方案的 GSM***中包含： MS1和 MS2, BSS1 (为 MS1提供服务） 、 BSS2 (为 MS2提供服务）和 1个 MSC和 1个 MGW, MS1和 MS2为一对正 在通话的两个终端， MS1为发生切换失败的终端， MS2为未发生切换的终端， BSS1和 BSS2在逻辑上是两个不同的 BSS, 但在物理上是同一个 BSS。 如图 5所示。  The GSM system of this solution includes: MS1 and MS2, BSS1 (serving MS1), BSS2 (serving MS2), and 1 MSC and 1 MGW. MS1 and MS2 are a pair of two terminals that are talking, MS1. For a terminal that fails to switch, MS2 is a terminal that does not have a handover. BSS1 and BSS2 are logically two different BSSs, but are physically the same BSS. As shown in Figure 5.
具体地说， 在 BSS1收到 MSC发送切换命令后， 由于 BSS1和 BSS2实 际上为同一个 BSS, BSS2将从 MS2收到的上行用户面数据同时发送给核心 网和本地链路。 当 BSS1从 MS1收到切换失败消息后， 由于 BSS1和 BSS2 实际上为同一个 BSS, BSS2将从 MS2收到的上行用户面数据的发送方式改 为在 MS1进行基站子***切换之前 BSS2使用的发送方式。  Specifically, after the BSS1 receives the handover command from the MSC, the BSS1 and the BSS2 are actually the same BSS, and the BSS2 simultaneously sends the uplink user plane data received from the MS2 to the core network and the local link. After the BSS1 receives the handover failure message from the MS1, since the BSS1 and the BSS2 are actually the same BSS, the BSS2 changes the transmission mode of the uplink user plane data received from the MS2 to the transmission used by the BSS2 before the MS1 performs the handover of the base station subsystem. the way.
需要说明的是， 在不冲突的情况下， 本申请中的实施例及实施例中的特 征可以相互任意组合。 当然， 本发明还可有其他多种实施例， 在不背离本发明精神及其实质的 但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。 本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成， 所述程序可以存储于计算机可读存储介质中， 如只读 存储器、 磁盘或光盘等。 可选地， 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地， 上述实施例中的各模块 /单元可以釆用 硬件的形式实现， 也可以釆用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。 It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other. It is a matter of course that the invention may be embodied in various other forms and modifications without departing from the spirit and scope of the invention. One of ordinary skill in the art can understand that all or part of the above steps can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium, such as read only. Memory, disk or disc, etc. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the foregoing embodiment may be implemented in the form of hardware, or may be implemented in the form of a software function module. The invention is not limited to any specific form of combination of hardware and software.
工业实用性 Industrial applicability
本方案可以使通过本地链路通话的两端中未进行切换的 MS的 BSS及时 调整对终端的上行用户面数据的发送方式， 提高***性能。  In this solution, the BSS of the MS that has not been switched through the two ends of the local link call can adjust the transmission mode of the uplink user plane data of the terminal in time to improve system performance.

Claims

权 利 要 求 书 Claim
1、 一种涉及本地通话本地交换的切换处理方法， 包括：  A handover processing method involving local exchange local exchange, comprising:
第一基站子***下的第一终端和第二基站子***下的第二终端通过具有 本地通话地本交换功能的本地链路保持通话；  The first terminal under the first base station subsystem and the second terminal under the second base station subsystem maintain a call through a local link having a local call local exchange function;
所述第一终端进行基站子***切换， 所述第二基站子***收到所述第二  The first terminal performs a base station subsystem handover, and the second base station subsystem receives the second
所述第一终端切换失败后， 所述第二基站子***将所述第二终端的上行 用户面数据的发送方式更换为在所述第一终端进行基站子***切换前使用的 发送方式。 After the first terminal fails to switch, the second base station subsystem replaces the sending mode of the uplink user plane data of the second terminal with the sending mode used before the base station subsystem performs the handover of the base station.
2、 如权利要求 1所述的方法， 其还包括：  2. The method of claim 1 further comprising:
所述第二基站子***使用更换后的发送方式发送所述第二终端的上行用 户面数据。  The second base station subsystem sends the uplink user plane data of the second terminal by using the changed transmission manner.
3、 如权利要求 1所述的方法， 其中，  3. The method of claim 1, wherein
所述第二基站子***在所述第一终端进行基站子***切换前使用的发送 方式是指向所述核心网的发送用户面数据或者向所述本地链路的发送用户面 数据再或者同时向所述核心网以及所述本地链路发送用户面数据。  The sending manner used by the second base station subsystem before the base station subsystem handover by the first terminal is to send user plane data to the core network or send user plane data to the local link, or simultaneously The core network and the local link transmit user plane data.
4、 如权利要求 1所述的方法， 其中，  4. The method of claim 1, wherein
所述第一基站子***和所述第二基站子***属于同一物理实体。  The first base station subsystem and the second base station subsystem belong to the same physical entity.
5、 如权利要求 1所述的方法， 其还包括：  5. The method of claim 1 further comprising:
所述第一终端切换失败后， 所述第一基站子***通知所述第二基站子系 统所述第一终端切换失败。  After the first terminal fails to switch, the first base station subsystem notifies the first base station subsystem that the first terminal fails to switch.
6、 如权利要求 1所述的方法， 其还包括：  6. The method of claim 1 further comprising:
所述第二基站子***更换对所述第二终端的上行用户面数据的发送方式 后将更换后的发送方式通知移动交换中心。  The second base station subsystem notifies the mobile switching center of the transmission mode of the uplink user plane data of the second terminal after the replacement.
7、 一种基站子***， 包括数据传输控制模块， 其中，  7. A base station subsystem, comprising a data transmission control module, wherein
所述数据传输控制模块设置为： 在所管理的终端与另一基站子***下的 对端进行本地链路通话并且所述对端进行基站子***切换失败后， 将所述终 端的上行用户面数据的发送方式更换为在所述对端进行基站子***切换前使 用的发送方式。 The data transmission control module is configured to: after the managed terminal performs a local link call with the opposite end of the other base station subsystem, and the opposite end performs the base station subsystem handover failure, the end The transmission mode of the uplink user plane data of the terminal is replaced with the transmission mode used before the base station subsystem handover is performed by the opposite end.
8、 如权利要求 7所述的基站子***， 其中，  8. The base station subsystem according to claim 7, wherein
在所述终端进行基站子***切换前使用的发送方式是指向所述核心网的 发送用户面数据或者向所述本地链路的发送用户面数据再或者同时向所述核 心网以及所述本地链路发送用户面数据。  The sending mode used before the terminal performs the base station subsystem switching is to send user plane data to the core network or send user plane data to the local link or to the core network and the local chain at the same time. The road sends user plane data.
9、 如权利要求 7所述的基站子***， 其中，  9. The base station subsystem according to claim 7, wherein
所述数据传输控制模块， 还设置为在所管理的终端与另一基站子***下 的对端进行本地链路通话并进行基站子***切换失败后， 通知所述对端的基 站子***所述终端切换失败。  The data transmission control module is further configured to notify the base station subsystem of the opposite end of the terminal after the managed terminal performs a local link call with the opposite end of another base station subsystem and performs a base station subsystem handover failure. The switch failed.
10、 如权利要求 7所述的基站子***， 其中，  10. The base station subsystem of claim 7, wherein
所述数据传输控制模块， 还设置为将更换后的发送方式通知移动交换中  The data transmission control module is further configured to notify the mobile switching mode of the changed transmission mode
PCT/CN2012/077689 2012-03-23 2012-06-28 Handover processing method and base station subsystem related to local call local switch WO2013139094A1 (en)

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