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CN101790246A - Method, device and system for local exchange - Google Patents

Method, device and system for local exchange Download PDF

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Publication number
CN101790246A
CN101790246A CN200910001153A CN200910001153A CN101790246A CN 101790246 A CN101790246 A CN 101790246A CN 200910001153 A CN200910001153 A CN 200910001153A CN 200910001153 A CN200910001153 A CN 200910001153A CN 101790246 A CN101790246 A CN 101790246A
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local
loopback
identifier
core network
base station
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CN200910001153A
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CN101790246B (en
Inventor
徐小英
黄敏
陈燕燕
关潇潇
秦钧
韩和生
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Abstract

本发明实施例公开了一种本地交换的方法、装置和系统，涉及通信技术领域。为解决现有技术无法区别对待不同业务，进而采取不同的处理方式的问题而发明。本发明本地交换的方法包括：当通信双方的用户在同一个基站控制器的信号覆盖范围内时，确定通信双方的当前业务类型；向所述基站控制器发送本地环回建立指示消息，该消息携带有环回标识。本发明实施例将本地连接功能细化到了业务层面，更适于网络对本地连接的控制和管理。

Figure 200910001153

The embodiment of the invention discloses a local switching method, device and system, and relates to the technical field of communication. It is invented to solve the problem that the existing technology cannot treat different services differently, and thus adopt different processing methods. The method for local exchange of the present invention includes: when the users of both communication parties are within the signal coverage of the same base station controller, determining the current service type of the communication parties; sending a local loopback establishment instruction message to the base station controller, the message Carry the loopback flag. The embodiment of the present invention refines the local connection function to the service level, which is more suitable for the control and management of the local connection by the network.

Figure 200910001153

Description

A kind of methods, devices and systems of local exchange
Technical field
The present invention relates to communication technical field, relate in particular to a kind of methods, devices and systems of local exchange.
Background technology
In 3G network, core net is divided into CS territory (CIRCURT CORE, circuit switching) and PS territory (PACKETCORE, packet switching), wherein the CS territory is a circuit switched core network, is used to support the business relevant with voice, and the PS territory is the Packet Service core net, be used to support Packet data service and some multimedia services, the CS territory is connected with Access Network with the PS territory simultaneously.
The local exchange of base station controller is meant, for CS territory business, mobile subscriber's (calling and called) is positioned at the scope of same base station controller, and base station controller carries out the loopback of calling and called voice by certain algorithm, for PS territory business, communication between the mobile subscriber is mutual, all in same base station controller scope, base station controller is by certain algorithm for the both sides of communication, the mutual data of control communicating pair are finished local loopback not by core net by base station controller.By the method for this locality exchange, can reach the transfer resource of saving base station controller and CN (Core Network, core net) interface, reduce time-delay, increase the purpose of core net capacity.
Prior art judges that by core net user both sides are whether under same base station controller, if, core net sends local exchange message to base station controller, and local exchange message comprises: local exchange indication, first customer equipment identification and second customer equipment identification; Base station controller carries out this locality exchange to the data between first subscriber equipment and second subscriber equipment after receiving local exchange indication in base station controller.
Prior art is learnt both call sides behind a base station controller by the CN judgement, and indicating base station controller with device identification is that both call sides is set up LS (Local Switch, local exchange).
In actual application, the inventor finds can't treat different business with a certain discrimination according to prior art, and then takes different processing modes, thereby has limited LS The Application of Technology scene.
Summary of the invention
The embodiment of the invention provides a kind of methods, devices and systems of local exchange, has solved prior art and can't treat different business with a certain discrimination, and then taked the problem of different processing modes.For achieving the above object, the embodiment of the invention is by the following technical solutions:
A kind of method of setting up local exchange of the embodiment of the invention comprises:
When in the signal cover of user at same base station controller of communicating pair, determine the present type of service of communicating pair;
Judge whether present type of service supports the local exchange of base station controller;
If present type of service is supported the local exchange of base station controller, send local loopback to described base station controller and set up Indication message, this message carries the loopback sign.
A kind of method of setting up local exchange of the embodiment of the invention comprises:
The local loopback that receives the core net transmission is set up Indication message, and wherein said local loopback is set up Indication message and carried the loopback sign;
Be designated the local switch mode of current business configuration that communicating pair uses according to described loopback.
A kind of method of removing local exchange of the embodiment of the invention comprises:
When wanting cross base station controller to switch, when perhaps receiving the message of the local exchange of releasing that core net sends, remove this locality exchange that winding identifies indicated business;
Set up user's face transmission bearer with core net;
Recover the operation exchange pattern of core network domain.
A kind of device that can realize local exchange of the embodiment of the invention comprises:
The type of service determination module is used for when in the signal cover of user at same base station controller of communicating pair, determines the present type of service of communicating pair;
Professional judge module is used for after the type of service determination module is determined the present type of service of communicating pair, judges whether present type of service supports local exchange;
Message transmission module is used for setting up Indication message to sending local loopback when described professional judge module judges that present type of service is supported local exchange, and described local loopback is set up Indication message and carried the loopback sign.
A kind of device that can realize local exchange of the embodiment of the invention comprises:
The message sink module is used to receive the local loopback that core net sends and sets up Indication message, and wherein said local loopback is set up Indication message and carried the loopback sign;
The pattern configurations module is used for according to described loopback sign, is the local switch mode of the current business configuration of communicating pair use.
A kind of system that can realize local exchange of the embodiment of the invention comprises:
Equipment of the core network is used for determining that the present type of service of communicating pair is when supporting the exchange of base station controller this locality, sends to described base station controller and sets up local loopback message, and this message is carried Locate Loopback ID;
Base station controller, be used to receive described loopback message after, be the described local switch mode of using for communicating pair of current business configuration according to described Locate Loopback ID.
The embodiment of the invention is by before setting up local the connection for communicating pair, type of service to communicating pair is judged, and then be its selection corresponding business bearing mode, thus local linkage function has been refine to service layer, be more suitable for network to locally-attached control and management.
Description of drawings
The flow chart one of locally-attached method that Fig. 1 provides for the embodiment of the invention;
The flowchart 2 of locally-attached method that Fig. 2 provides for the embodiment of the invention;
A kind of flow chart of removing the method for local exchange that Fig. 3 provides for the embodiment of the invention;
A kind of structure chart one that can realize the device of local exchange that Fig. 4 provides for the embodiment of the invention;
A kind of structure chart two that can realize the device of local exchange that Fig. 5 provides for the embodiment of the invention;
A kind of schematic diagram that can realize the system of local exchange that Fig. 6 provides for the embodiment of the invention.
Embodiment
Can't treat different business with a certain discrimination in order to solve the prior art scheme, and then take the problem of different processing modes, the embodiment of the invention that a kind of locally-attached methods, devices and systems are provided.Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
As shown in Figure 1, locally-attached method that the embodiment of the invention provides comprises:
101, when in the signal cover of user at same base station controller of communicating pair, determine the present type of service of communicating pair;
102, judge whether present type of service supports the local exchange of base station controller;
If 103 present type of service are supported the local exchange of base station controller, send local loopback to described base station controller and set up Indication message, this message carries the loopback sign.
The embodiment of the invention judges that by core net current communicating pair is whether in the signal cover of same base station controller, if, so the type of service of current communicating pair is judged, judge whether it supports or be worth setting up this locality to connect, if, core net then sends local loopback to base station controller and sets up Indication message, and this message carries the loopback sign; By this loopback sign, base station controller can be known the business information of communicating pair, and then selects corresponding bearing mode for different types of service.
When core net is the CS territory, the loopback sign comprises: the wireless access bearing sign of local loopback business and the combination of user ID, the combination of the wireless access bearing sign of local loopback business and Iu interface signaling connection identifier, the perhaps combination of the wireless access bearing sign of local loopback business, user ID and Iu interface signaling connection identifier; Be that local loopback is set up and carried in above-mentioned three kinds of combinations any one in the Indication message and get final product;
When core net was the PS territory, loopback sign also comprised TEID (Tunnel Identifier), DTI (directly Tunnel Identifier) or wireless access bearing sign except comprising in above-mentioned three kinds of combinations any one; Promptly local loopback was set up and not only can be carried in above-mentioned three kinds of combinations any one in the Indication message this moment, also can only carry TEID (Tunnel Identifier), DTI (directly Tunnel Identifier) or wireless access bearing sign that can globally unique identifier's business information in base station controller.
In twice judgement in step 101, step 102, carrying out,, then withdraw from the flow process of local exchange, provide communication service for the user by core net if there is arbitrary situation not that is judged as.Is known technology by core net for the user provides communication service, in this few repetition.
For core net is the situation in PS territory, whether the user that before also need judge communicating pair belongs to same SGSN, if belong to same SGSN, then then communicate both sides' the whether judgement in the signal cover of same base station controller of user, if do not belong to same SGSN, then withdraw from the flow process of local exchange, provide communication service for the user by core net.Is known technology by core net for the user provides communication service, in this few repetition.
When core net judges that the type of service of communicating pair is supported the local exchange of base station controller, also need elder generation to be adjusted into the speech encoding rate of communicating pair identical;
If promptly the speech encoding rate of communicating pair is identical, then core net can directly send local loopback to base station controller and set up Indication message;
If the speech encoding rate difference of communicating pair, then core net can be by adjusting a communicating pair or a side's speech encoding rate, make its both sides' speech encoding rate adjust identical, send local loopback to base station controller afterwards and set up Indication message, and local loopback is set up and carried adjusted speech encoding rate in the Indication message.If base station controller is supported codec functions, so when core net indication base station controller is set up local loopback, also can not adjust terminal both sides' speech encoding rate, set up at local loopback and to carry professional speech encoding rate in the Indication message, the code rate of supporting by the base station controller converting users.
As shown in Figure 2, the embodiment of the invention is a kind of sets up locally-attached method and comprises:
201, the local loopback that receives the core net transmission is set up Indication message,, wherein said local loopback is set up Indication message and is carried the loopback sign;
202, be designated the local switch mode of current business configuration that communicating pair uses according to described loopback.
Base station controller receives after local loopback that core net sends sets up Indication message, setting up the loopback that carries in the Indication message according to described local loopback is designated communicating pair and disposes local switch mode, the type of service that is communicating pair is selected the corresponding business bearing mode, and the business datum by base station controller control communicating pair exchanges afterwards.
The embodiment of the invention is analyzed by local loopback being set up the loopback sign of carrying in the Indication message, thereby obtain the type of service of communicating pair, and then be that communicating pair selects the corresponding business bearing mode, this has just refine to service layer with local function of exchange, has expanded the application scenarios of local function of exchange.
After step 202, the embodiment of the invention can take two kinds of technical schemes to carry out following flow process, will be described respectively below:
First kind: after base station controller disposed local switch mode success, directly the deletion master exhaled user's face transmission bearer of foundation, user's face transmission bearer of promptly setting up between base station controller and the core net;
Afterwards, set up local loopback by base station controller to the core net transmission and receive the response, the local exchange of this message indication configuration successful.
Second kind: base station controller is set up local loopback to the core net transmission and is receiveed the response after disposing local switch mode success, the local exchange of this message indication configuration successful;
After core net is received response message, send user's face transmission bearer that the deletion of message indication base station controller is set up for caller;
Base station controller is according to the message deletion user face transmission bearer of core net.
The method that the foundation this locality that provides for the embodiment of the invention exchanges, can be applicable in the multiple concrete scene and pattern, as the calling subscriber in the scene that the called subscriber calls out, in the scene that the caller called subscriber is switched in communication process or the like, the technical scheme of using in each scene and pattern is all identical with the embodiment of the invention, only simply is described the method for setting up local exchange under the handoff scenario as follows at this:
Before switching, communicating pair belongs within the signal cover of different base station controllers, describe for convenient, suppose that the calling party belongs within the signal cover of base station controller 1, the callee belongs within the signal cover of base station controller 2, the callee will switch to the signal cover of base station controller 1 now, and then base station controller 2 can send Relocation Required (reorientation demand) message to core net;
After core net is received described Relocation Required message, judge whether the communicating pair after switching belongs to base station controller, and whether the type of service of communicating pair supports the local exchange of base station controller;
If above-mentioned judged result is and is, core net sends Relocation Request (re-positioning request) message indication RNC to base station controller 1 and sets up local exchange, carries the loopback sign in described Relocation Request message; Otherwise, withdraw from local exchange flow process;
After base station controller 1 is received described Relocation Request message, be the local exchange of the business configuration of communicating pair;
After the configuration successful, base station controller 1 sends Relocation Required ACK (re-positioning request is replied) message to core net, and the local exchange configuration of indication is finished, and the business datum by base station controller 1 control communicating pair exchanges in this locality afterwards;
If configuration failure, base station controller 1 sends Relocation Required ACK (re-positioning request is replied) message to core net, and the indication configuration failure recovers existing core net switch mode and continues communication.
As shown in Figure 3, the embodiment of the invention provides a kind of method of removing local exchange, comprising:
301, when wanting cross base station controller to switch, when perhaps receiving the message of the local exchange of releasing that core net sends, remove this locality exchange that winding identifies indicated business;
302 and core net set up user's face transmission bearer;
303, recover the operation exchange pattern of core network domain.
According to step 302, the concrete difference of implementing of step 303, the method for the local exchange of the releasing that the embodiment of the invention provides can comprise following four kinds of technical schemes, will be described one by one below:
First kind: the step of setting up user's face transmission bearer with core net comprises:
Base station controller is judged has a side to want cross base station controller to switch;
Base station controller and core net are finished the foundation of user's face transmission bearer.
The step of the operation exchange pattern of described recovery core network domain comprises:
Base station controller sends message request to core net and removes local exchange, and portability has the loopback sign in the message;
Core net sends and receives the response, and local exchange is removed in indication, recovers the core-network side data exchange mode;
Base station controller is received receiveing the response of core net, and the configure user data are the core net switch mode, sends to core net and receives the response.
Second kind: the step of setting up user's face transmission bearer with core net comprises:
After the cross base station controller handoff request of core net As-received station control, send the local exchange indication of releasing to base station controller; Perhaps base station controller asks to remove local exchange simultaneously when core net sends switching message, and portability has the loopback sign in the message;
Core net sends and receives the response, and local exchange is removed in indication;
After base station controller is received and core net finish the foundation of user's face transmission bearer;
The step of the operation exchange pattern of described recovery core network domain comprises:
After base station controller and core net were finished the foundation of user's face transmission bearer, the configure user data were the core net switch mode, sent to core net and receiveed the response;
After core net is received message, recover the core-network side data exchange mode.
The third: the step of setting up user's face transmission bearer with core net comprises:
Base station controller is judged has a side to want cross base station controller to switch;
Base station controller and core net are finished the foundation of user's face transmission bearer;
The step of the operation exchange pattern of described recovery core network domain comprises:
Base station controller configure user business is the core net switch mode, sends message request to core net and removes local exchange, carries the loopback sign in the message;
Core net sends and receives the response, and local exchange is removed in indication, recovers the core-network side data exchange mode.
The 4th kind: the step of setting up user's face transmission bearer with core net comprises:
When core net need be initiated monitoring to side's local loopback user, core net sent the message of removing local exchange, and the indication base station controller is removed local exchange, comprises the loopback sign in the message;
After base station controller is received, the user's face transmission bearer between foundation and the core net;
The step of the operation exchange pattern of described recovery core network domain comprises:
Base station controller configure user data are the core net switch mode, send message to core net, the indication configuration successful;
After core net is received message, recover the core-network side data exchange mode.
In the method for the local exchange of releasing that the embodiment of the invention provides, if remove the situation of local loopback failure, base station controller sends Indication message to core net, and the indication local loopback is removed failure;
After core net was received message, the indication base station controller discharged the user and connects, and perhaps indicates base station controller to recover to set up local loopback.
The method of the local exchange of the releasing that the embodiment of the invention provides, can realize the releasing of the local switch mode of communicating pair, switch back core net control model or call release, the releasing of local switch mode has been refine to service layer, can be more careful and supervising the network flexibly, and expanded the application scenarios of local function of exchange.
As shown in Figure 4, a kind of device 400 that can realize local exchange of the embodiment of the invention comprises:
Type of service determination module 401 is used for when in the signal cover of user at same base station controller of communicating pair, determines the present type of service of communicating pair;
Professional judge module 402 is used for after the type of service determination module is determined the present type of service of communicating pair, judges whether present type of service supports local exchange;
Message transmission module 403 is used for setting up Indication message to sending local loopback when described professional judge module judges that present type of service is supported local exchange, and described local loopback is set up Indication message and carried the loopback sign.
A kind of device that can realize local exchange of the embodiment of the invention also comprises:
Speed adjusting module 404 is used for speech encoding rate with communicating pair and is adjusted into identically, sends local loopback by message transmission module to base station controller afterwards and sets up Indication message;
Judge module 2 405 is used to judge whether the user of communicating pair belongs to a SGSN.
As shown in Figure 5, a kind of device 500 that can realize local exchange of the embodiment of the invention comprises:
Message sink module 501 is used to receive the local loopback that core net sends and sets up Indication message, and wherein said local loopback is set up Indication message and carried the loopback sign;
Pattern configurations module 502 is used for according to described loopback sign, is the local switch mode of the current business configuration of communicating pair use.
A kind of device that can realize local exchange of the embodiment of the invention also comprises:
Removing module 503, be used for local exchange configuration successful after, the main user's face transmission bearer of exhaling foundation of deletion;
As shown in Figure 6, the embodiment of the invention provides a kind of system that can realize local exchange, comprise: equipment of the core network 1, described equipment of the core network are connected with at least one base station controller 2, and the signal cover of described base station controller is built-in with the user terminal 3 that needs communication;
Equipment of the core network is used for determining the present type of service of communicating pair, judges afterwards whether present type of service supports the local exchange of base station controller; If present type of service is supported the local exchange of base station controller, send to described base station controller and set up local loopback message, this message portability loopback service identification;
Base station controller, be used to receive described loopback message after, be that described user terminal sets up local exchange.
The system that can realize local exchange that the embodiment of the invention provides, also comprise: equipment of the core network 1, described equipment of the core network are connected with at least one base station controller 2, and the signal cover of described base station controller is built-in with the user terminal 3 that needs communication;
Base station controller is used in the time will removing local exchange and core net is set up data communication channel; Restore data is exchanged for the core net switch mode;
Equipment of the core network is used for recovering the data exchange mode of core-network side in the time will removing local exchange.
The methods, devices and systems of this locality exchange that the embodiment of the invention provided, by before setting up local the connection for communicating pair, type of service to communicating pair is judged, and then be that it selects the corresponding business bearing mode, thereby local linkage function has been refine to service layer, be more suitable for network locally-attached control and management.
The embodiment of the invention is for the situation in CS territory, and equipment of the core network can be MSC, and for the situation in PS territory, equipment of the core network can be SGSN; In addition, the base station controller mentioned of the embodiment of the invention also can be flattening base station or Home eNodeB or the like.
One of ordinary skill in the art will appreciate that: all or part of step in realization the foregoing description method can instruct relevant hardware to finish by program, described program can be stored in the computer-readable recording medium, as ROM/RAM, magnetic disc or CD etc.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the described protection range of claim.

Claims (20)

1.一种建立本地交换的方法，其特征在于，包括：1. A method for setting up local exchange, characterized in that, comprising: 当通信双方的用户在同一个基站控制器的信号覆盖范围内时，确定通信双方的当前业务类型；When the users of both communication parties are within the signal coverage of the same base station controller, determine the current service types of both communication parties; 判断当前业务类型是否支持基站控制器本地交换；Judging whether the current service type supports local switching of the base station controller; 如果当前业务类型支持基站控制器本地交换，向所述基站控制器发送本地环回建立指示消息，所述本地环回建立指示消息携带环回标识。If the current service type supports local switching of the base station controller, send a local loopback establishment instruction message to the base station controller, where the local loopback establishment instruction message carries a loopback identifier. 2.根据权利要求1所述的建立本地交换的方法，其特征在于，在所述判断当前业务类型是否支持基站控制器本地交换的步骤之后，还包括：2. The method for establishing local switching according to claim 1, characterized in that, after the step of judging whether the current service type supports the local switching of the base station controller, further comprising: 如果当前业务类型不支持基站控制器本地交换，则退出本地交换的流程。If the current service type does not support local switching of the base station controller, the process of local switching is exited. 3.根据权利要求1所述的建立本地交换的方法，其特征在于，如果核心网是CS域时，所述环回标识包括：本地环回业务的无线接入承载标识与用户标识的组合，或本地环回业务的无线接入承载标识与Iu接口信令连接标识的组合，或本地环回业务的无线接入承载标识、用户标识与Iu接口信令连接标识的组合。3. The method for establishing local switching according to claim 1, wherein, if the core network is a CS domain, the loopback identifier comprises: a combination of a wireless access bearer identifier and a user identifier of a local loopback service, Or the combination of the radio access bearer identifier of the local loopback service and the Iu interface signaling connection identifier, or the combination of the radio access bearer identifier of the local loopback service, the user identifier, and the Iu interface signaling connection identifier. 如果核心网是PS域时，所述环回标识包括：本地环回业务的无线接入承载标识与用户标识的组合，或本地环回业务的无线接入承载标识与Iu接口信令连接标识的组合，或本地环回业务的无线接入承载标识、用户标识与Iu接口信令连接标识的组合，或者无线接入承载标识，或者TEID，或DTI，或者TEID和DTI的组合。If the core network is in the PS domain, the loopback identifier includes: the combination of the radio access bearer identifier of the local loopback service and the user identifier, or the combination of the radio access bearer identifier of the local loopback service and the Iu interface signaling connection identifier Combination, or the combination of the radio access bearer identifier of the local loopback service, the user identifier and the Iu interface signaling connection identifier, or the radio access bearer identifier, or the TEID, or the DTI, or the combination of the TEID and the DTI. 4.根据权利要求1所述的建立本地交换的方法，其特征在于如果核心网是PS域，进一步包括：4. The method for establishing local switching according to claim 1, wherein if the core network is a PS domain, further comprising: 判断通信双方的用户是否同属于一个SGSN；Determine whether the users on both sides of the communication belong to the same SGSN; 如果通信双方的用户同属于一个SGSN，判断通信双方的用户是否在同一个基站控制器的信号覆盖范围内。If the users of both communication parties belong to the same SGSN, it is judged whether the users of both communication parties are within the signal coverage of the same base station controller. 5.根据权利要求1所述的建立本地交换的方法，其特征在于，在所述如果当前业务类型支持基站控制器本地交换，向所述基站控制器发送本地环回建立指示消息的步骤之前还包括：5. The method for establishing local switching according to claim 1, characterized in that, before the step of sending a local loopback establishment instruction message to the base station controller if the current service type supports the local switching of the base station controller include: 将通信双方的语音编码速率调整为相同。Adjust the voice coding rate of both communication parties to be the same. 6.一种建立本地交换的方法，其特征在于，包括：6. A method for establishing a local exchange, comprising: 接收核心网发送的本地环回建立指示消息，其中所述本地环回建立指示消息携带环回标识；receiving a local loopback establishment indication message sent by the core network, wherein the local loopback establishment indication message carries a loopback identifier; 根据所述的环回标识为通信双方使用的当前业务配置本地交换模式。The local switching mode is configured for the current service used by both communicating parties according to the loopback identifier. 7.根据权利要求6所述的建立本地交换的方法，其特征在于进一步包括：7. The method for establishing a local exchange according to claim 6, further comprising: 本地交换配置成功后，删除主呼建立的用户面传输承载；After the local switching configuration is successful, delete the user plane transmission bearer established by the calling party; 向核心网发送建立本地环回响应消息，该消息指示本地交换配置成功。A local loopback establishment response message is sent to the core network, and the message indicates that the local switching configuration is successful. 8.根据权利要求6所述的建立本地交换的方法，其特征在于，进一步包括：8. The method for establishing a local exchange according to claim 6, further comprising: 本地交换配置成功后，向核心网发送建立本地环回回应消息，该消息指示本地交换配置完成；After the local switching configuration is successful, a local loopback establishment response message is sent to the core network, which indicates that the local switching configuration is completed; 接收核心网发送的删除用户面传输承载的消息，根据所述删除用户面传输承载的消息，删除为主叫建立的用户面传输承载。Receive the message of deleting the user plane transmission bearer sent by the core network, and delete the user plane transmission bearer established for the calling party according to the message of deleting the user plane transmission bearer. 9.一种解除本地交换的方法，其特征在于，包括：9. A method for releasing local exchange, comprising: 当要跨基站控制器切换时，或者接收到核心网发送的解除本地交换的消息时，解除回环标识所指示业务的本地交换；When switching across base station controllers, or when receiving a message to cancel local switching sent by the core network, cancel the local switching of the service indicated by the loopback identifier; 和核心网建立用户面传输承载；Establish a user plane transmission bearer with the core network; 恢复核心网域的业务交换模式。Restore the business switching mode of the core network domain. 10.根据权利要求9所述的解除本地交换的方法，其特征在于，所述和核心网建立用户面传输承载的步骤包括：10. The method for releasing local switching according to claim 9, wherein the step of establishing a user plane transmission bearer with the core network comprises: 判断有一方要跨基站控制器切换；Judging that one party wants to switch across base station controllers; 和核心网完成用户面传输承载的建立。Complete the establishment of the user plane transmission bearer with the core network. 所述恢复核心网域的业务交换模式的步骤包括：The step of recovering the business switching mode of the core network domain includes: 向核心网发送消息请求解除本地交换，所述请求解除本地交换消息中携带有环回标识；Sending a message to the core network to request release of local switching, the message of requesting release of local switching carries a loopback identifier; 接收核心网的响应消息，解除本地交换，配置核心网侧数据交换模式。Receive the response message from the core network, release the local switching, and configure the data exchange mode on the core network side. 11.根据权利要求9所述的解除本地交换的方法，其特征在于，所述和核心网建立用户面传输承载的步骤包括：11. The method for releasing local switching according to claim 9, wherein the step of establishing a user plane transmission bearer with the core network comprises: 向核心网发送跨基站控制器切换请求消息，所述的跨基站控制器切换请求消息中包含环回标识；Sending a cross-base station controller handover request message to the core network, wherein the cross-base station controller handover request message includes a loopback identifier; 接收核心网发送的响应消息，解除回环标识所指示业务的本地交换；Receive the response message sent by the core network, and release the local switching of the service indicated by the loopback identifier; 和核心网完成用户面传输承载的建立；Complete the establishment of the user plane transmission bearer with the core network; 所述恢复核心网域的业务交换模式的步骤包括：The step of recovering the business switching mode of the core network domain includes: 和核心网完成用户面传输承载的建立后，配置用户数据为核心网交换模式。After completing the establishment of the user plane transmission bearer with the core network, configure the user data as the core network switching mode. 12.根据权利要求9所述的解除本地交换的方法，其特征在于，所述和核心网建立用户面传输承载的步骤包括：12. The method for releasing local switching according to claim 9, wherein the step of establishing a user plane transmission bearer with the core network comprises: 判断有一方要跨基站控制器切换；Judging that one party wants to switch across base station controllers; 和核心网完成用户面传输承载的建立；Complete the establishment of the user plane transmission bearer with the core network; 所述恢复核心网域的业务交换模式的步骤包括：The step of recovering the business switching mode of the core network domain includes: 配置用户业务为核心网交换模式，向核心网发送消息请求解除本地交换，消息中携带有环回标识；Configure the user service as the core network switching mode, and send a message to the core network to request to release the local switching, and the message carries the loopback identifier; 接收核心网发送响应消息，解除回环标识所指示业务的本地交换。The receiving core network sends a response message to release the local switching of the service indicated by the loopback identifier. 13.根据权利要求9所述的解除本地交换的方法，其特征在于，所述和核心网建立用户面传输承载的步骤包括：13. The method for releasing local switching according to claim 9, wherein the step of establishing a user plane transmission bearer with the core network comprises: 接收核心网发送的解除本地交换的消息，所述核心网发送的解除本地交换的消息包括环回标识；receiving a message for releasing local switching sent by the core network, where the message for releasing local switching sent by the core network includes a loopback identifier; 解除所述回环标识所指示业务的本地交换；Release the local switching of the service indicated by the loopback identifier; 建立与核心网之间的用户面传输承载；Establish a user plane transmission bearer with the core network; 所述恢复核心网域的业务交换模式的步骤包括：The step of recovering the business switching mode of the core network domain includes: 配置用户数据为核心网交换模式，向核心网发送消息，指示配置成功。Configure the user data as the core network switching mode, and send a message to the core network to indicate that the configuration is successful. 14.如权利要求9至13中任一项权利要求所述，其特征在于，包括：如果核心网是CS域时，所述环回标识包括：本地环回业务的无线接入承载标识与用户标识的组合，或本地环回业务的无线接入承载标识与Iu接口信令连接标识的组合，或本地环回业务的无线接入承载标识、用户标识与Iu接口信令连接标识的组合。14. According to any one of claims 9 to 13, it is characterized in that it includes: if the core network is a CS domain, the loopback identifier includes: the radio access bearer identifier of the local loopback service and the user A combination of identifiers, or a combination of the radio access bearer identifier of the local loopback service and the Iu interface signaling connection identifier, or a combination of the radio access bearer identifier of the local loopback service, the user identifier, and the Iu interface signaling connection identifier. 如果核心网是PS域时，所述环回标识包括：本地环回业务的无线接入承载标识与用户标识的组合，或本地环回业务的无线接入承载标识与Iu接口信令连接标识的组合，或本地环回业务的无线接入承载标识、用户标识与Iu接口信令连接标识的组合，或者无线接入承载标识，或者TEID，或DTI，或者TEID和DTI的组合。If the core network is in the PS domain, the loopback identifier includes: the combination of the radio access bearer identifier of the local loopback service and the user identifier, or the combination of the radio access bearer identifier of the local loopback service and the Iu interface signaling connection identifier Combination, or the combination of the radio access bearer identifier of the local loopback service, the user identifier and the Iu interface signaling connection identifier, or the radio access bearer identifier, or the TEID, or the DTI, or the combination of the TEID and the DTI. 15.一种能实现本地交换的装置，其特征在于，包括：15. A device capable of realizing local switching, comprising: 业务类型确定模块，用于当通信双方的用户在同一个基站控制器的信号覆盖范围内时，确定通信双方的当前业务类型；A business type determination module, configured to determine the current business types of both communication parties when the users of both communication parties are within the signal coverage of the same base station controller; 业务判断模块，用于当业务类型确定模块确定通信双方的当前业务类型后，判断当前业务类型是否支持本地交换；The business judgment module is used for judging whether the current business type supports local switching after the business type determination module determines the current business types of both communication parties; 消息发送模块，用于当所述业务判断模块判断当前业务类型支持本地交换时，向发送本地环回建立指示消息，所述本地环回建立指示消息携带环回标识。A message sending module, configured to send a local loopback establishment instruction message to the local loopback establishment instruction message carrying a loopback identifier when the service judgment module judges that the current service type supports local switching. 16.根据权利要求15所述的能实现本地交换的装置，其特征在于，还包括：16. The device capable of realizing local switching according to claim 15, further comprising: 速率调整模块，用于将通信双方的语音编码速率调整为相同，之后由消息发送模块向基站控制器发送本地环回建立指示消息。The rate adjustment module is used to adjust the speech coding rates of both communication parties to be the same, and then the message sending module sends a local loopback establishment instruction message to the base station controller. 17.根据权利要求15或16所述的能实现本地交换的装置，其特征在于，进一步包括：判断模块二，用于判断通信双方的用户是否同属于一个SGSN。17. The device capable of realizing local switching according to claim 15 or 16, further comprising: a judging module 2 for judging whether the users of both communication parties belong to the same SGSN. 18.一种能实现本地交换的装置，其特征在于，包括：18. A device capable of realizing local switching, comprising: 消息接收模块，用于接收核心网发送的本地环回建立指示消息，其中所述本地环回建立指示消息携带环回标识；A message receiving module, configured to receive a local loopback establishment instruction message sent by the core network, wherein the local loopback establishment instruction message carries a loopback identifier; 模式配置模块，用于根据所述的环回标识，为通信双方使用的当前业务配置本地交换模式。The mode configuration module is used to configure the local switching mode for the current service used by both communication parties according to the loopback identifier. 19.根据权利要求18所述的能实现本地交换的装置，其特征在于，还包括：19. The device capable of realizing local switching according to claim 18, further comprising: 删除模块，用于本地交换配置成功后，删除主呼建立的用户面传输承载。The deletion module is used to delete the user plane transmission bearer established by the calling party after the local switching configuration is successful. 20.一种能实现本地交换的系统，其特征在于，包括：核心网设备，所述核心网设备连接有至少一个基站控制器；20. A system capable of realizing local switching, comprising: a core network device connected to at least one base station controller; 核心网设备，用于确定通信双方的当前业务类型是支持基站控制器本地交换时，向所述基站控制器发送建立本地环回消息，该消息携带本地环回标识；The core network equipment is used to determine that when the current service type of the communication parties supports the local exchange of the base station controller, send a local loopback establishment message to the base station controller, and the message carries a local loopback identifier; 基站控制器，用于接收到所述环回消息后，根据所述本地环回标识为所述所述为通信双方使用的当前业务配置本地交换模式。The base station controller is configured to, after receiving the loopback message, configure a local switching mode for the current service used by both communication parties according to the local loopback identifier.
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