WO2014094260A1

WO2014094260A1 - Method, device, and system for returning to long term evolution network after call

Info

Publication number: WO2014094260A1
Application number: PCT/CN2012/086963
Authority: WO
Inventors: 邓蕾; 汤正华; 朱俊; 邵阳
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-12-19
Filing date: 2012-12-19
Publication date: 2014-06-26
Anticipated expiration: 2015-06-19
Also published as: CN103596643A; CN103596643B

Abstract

The present invention relates to the field of communications. Embodiments of the present invention provide a method, a device, and a system for returning to a long term evolution (LTE) network after a call, which can raise the speed of a user equipment returning to an LTE network after a voice service ends, thereby improving user experience of a data service. The method comprises: a base station subsystem obtaining a reason that a user equipment accesses a circuit switched (CS) domain network due to circuit switched fallback (CSFB), so that after the user equipment ends a call, according to the reason that the user equipment accesses the CS domain network due to CSFB, the base station subsystem triggers sending of a return instruction to the user equipment, and the user equipment returns to an LTE network. The embodiments of the present invention are used for improving the speed of a user equipment returning to an LTE network after a call ends.

Description

一种在通话后返回长期演进网络的方法、设备和系统技术领域 Method, device and system for returning to long term evolution network after call

本发明涉及通信领域，尤其涉及一种在通话后返回长期演进网络的方法、设备和系统。 The present invention relates to the field of communications, and in particular, to a method, device and system for returning to a long term evolution network after a call.

背景技术 Background technique

目前，新建设的演进型通用陆地无线接入网（Evolved Universal Terrestrial Radio Access Network , E-UTRAN)网络仅负责分组交换业务，语音业务仍然由原有的电路交换（Circuit Switched , CS)域语音方案提供。如果在 CS语音业务结束后，用户设备有分组交换业务需求，在用户设备没有及时返回长期演进（Long Term Evolution , LTE) 网络的情况下，会继续在进行语音业务的 G SM/ EDGE 无线接入网 ( GSM/EDGE Radio Access Network , GERAN ) 或通用陆地无线接入网（ Universal Terrestrial Radio Access Network , UTRAN ) 来处理分组交换业务。这里所说的长期演进网络不仅指 LTE网络，还包含 LTE的后续演进网络。 At present, the newly constructed Evolved Universal Terrestrial Radio Access Network (E-UTRAN) network is only responsible for packet switching services, and the voice service is still replaced by the original Circuit Switched (CS) domain voice solution. provide. If the user equipment has a packet switching service requirement after the CS voice service ends, the G SM/EDGE wireless access for the voice service will continue if the user equipment does not return to the Long Term Evolution (LTE) network in time. The GSM/EDGE Radio Access Network (GERAN) or the Universal Terrestrial Radio Access Network (UTRAN) handles packet switched services. The term "long-term evolution network" as used herein refers not only to LTE networks, but also to subsequent evolved networks of LTE.

釆用上述方案会产生緩慢的处理效果，使用户不能享受 LTE快速的网络速度，严重影响用户的网络体验。上述 Using the above solution will produce a slow processing effect, so that users can not enjoy the fast network speed of LTE, which seriously affects the user's network experience.

发明内容 Summary of the invention

本发明的实施例提供一种在通话后返回长期演进网络的方法、设备和系统，能够提高用户设备在语音业务后返回 LTE网络的速度，改善用户的数据业务体验。 The embodiments of the present invention provide a method, a device, and a system for returning to a long term evolution network after a call, which can improve the speed at which the user equipment returns to the LTE network after the voice service, and improve the data service experience of the user.

为达到上述目的，本发明的实施例釆用如下技术方案： In order to achieve the above object, the embodiment of the present invention uses the following technical solutions:

第一方面，一种通话后返回长期演进网络的方法，所述方法包括： In a first aspect, a method for returning to a long term evolution network after a call, the method includes:

获取用户设备由于电路域交换回落 CSFB接入电路交换 C S域网络的原因； Obtaining the reason why the user equipment accesses the C-domain network due to the circuit domain exchange falling back CSFB access;

在所述用户设备语音通话结束后，接收所述用户设备的语音通话结束标识； Receiving a voice pass of the user equipment after the user equipment voice call ends End of the logo;

根据所述用户设备接入 CS域网络的原因，触发向所述用户设备发送返回指令，以便所述用户设备根据所述返回指令返回长期演进 Sending a return instruction to the user equipment according to the reason that the user equipment accesses the CS domain network, so that the user equipment returns long-term evolution according to the return instruction.

LTE网络。 LTE network.

在第一种可能的实现方式中，结合第一方面，所述获取用户设备由于 CSFB接入电路交换 C S域网络的原因包括： In a first possible implementation manner, in combination with the first aspect, the acquiring user equipment, because the CSFB accesses the circuit to exchange the C S domain network, includes:

在所述用户设备向移动管理实体发起语音呼叫请求后，接收所述用户设备发送的业务请求信息，所述业务请求信息包括所述用户设备由于 C SFB接入电路交换 C S域网络的原因。 After the user equipment initiates a voice call request to the mobility management entity, the service request information sent by the user equipment is received, where the service request information includes the user equipment accessing the C S domain network due to the C SFB access circuit.

在第二种可能的实现方式中，结合第一方面，所述获取用户设备由于 CSFB接入电路交换 C S域网络的原因包括： In a second possible implementation manner, in combination with the first aspect, the acquiring user equipment, because the CSFB accesses the circuit to exchange the C S domain network, includes:

接收移动交换中心发送的所述用户设备由于 C SFB 接入电路交换 CS域网络的原因。 Receiving the reason that the user equipment sent by the mobile switching center exchanges the CS domain network due to the C SFB access circuit.

在第三种可能的实现方式中，结合第一方面的第二种可能的实现方式，所述用户设备由于 C SFB接入电路交换 C S域网络的原因是在结束小区切换之后，由所述移动管理实体发送至所述移动交换中心的。 In a third possible implementation manner, in combination with the second possible implementation manner of the first aspect, the user equipment accessing the CS domain network due to the C SFB access is caused by the mobile after ending the cell handover. The management entity sends to the mobile switching center.

第二方面，提供一种通话后返回长期演进网络的方法，所述方法包括： In a second aspect, a method for returning to a long term evolution network after a call is provided, the method comprising:

在向移动管理实体发起语音呼叫请求后，向基站子系统发送业务请求信息，所述业务请求信息包括用户设备由于电路域交换回落 CSFB接入电路交换 CS域网络的原因； After the voice call request is initiated to the mobility management entity, the service request information is sent to the base station subsystem, where the service request information includes the user equipment accessing the circuit-switched CS domain network due to the circuit domain exchange falling back CSFB;

在语音通话结束后，向所述基站子系统发送语音通话结束标识，以便通知所述基站子系统所述用户设备已结束通话，使所述基站子系统根据所述用户设备由于 CSFB接入电路交换 CS域网络的原因触发向所述用户设备发送返回指令； After the end of the voice call, sending a voice call end identifier to the base station subsystem, so as to notify the base station subsystem that the user equipment has ended the call, so that the base station subsystem exchanges circuit according to the user equipment due to CSFB access. The reason of the CS domain network triggers sending a return instruction to the user equipment;

接收所述基站子系统发送的返回指令，并根据所述返回指令返回 LTE网络。 Receiving a return instruction sent by the base station subsystem, and returning to the LTE network according to the return instruction.

第三方面，提供一种通话后返回长期演进网络的方法，所述方法包括： In a third aspect, a method for returning to a long term evolution network after a call is provided, where the party The law includes:

接收基站子系统转发的用户设备发送的业务请求消息； Receiving a service request message sent by the user equipment forwarded by the base station subsystem;

向所述基站子系统发送用户设备由于电路域交换回落 C SFB 接入电路交换 CS 域网络的原因，以便在所述用户设备结束语音通话后，使所述基站子系统根据所述用户设备由于 C SFB 接入电路交换 CS域网络的原因触发向所述用户设备发送返回指令。 Transmitting, to the base station subsystem, a reason for the user equipment to access the circuit switched CS domain network due to the circuit domain switching fallback C SFB, so that after the user equipment ends the voice call, the base station subsystem is caused by the user equipment according to the C The reason for the SFB accessing the circuit switched CS domain network triggers the sending of a return command to the user equipment.

在第一种可能的实现方式中，结合第三方面，所述在向所述基站子系统发送用户设备由于 CSFB接入电路交换 CS域网络的原因之前，所述方法还包括： In a first possible implementation, in combination with the third aspect, the method further includes: before transmitting, to the base station subsystem, a user equipment, because the CSFB accesses the circuit-switched CS domain network, the method further includes:

在结束小区切换之后，从移动管理实体接收所述用户设备由于 CSFB接入电路交换 CS域网络的原因。 After terminating the cell handover, the mobile management entity receives the reason that the user equipment accesses the CS domain network due to CSFB access.

第四方面，提供一种基站子系统，所述基站子系统包括：系统接收单元，用于获取用户设备由于电路域交换回落 CSFB 接入电路交换 C S域网络的原因，并将所述用户设备由于 CSFB接入 CS域网络的原因发送至系统发送单元； A fourth aspect, a base station subsystem is provided, where the base station subsystem includes: a system receiving unit, configured to acquire, by using a circuit domain exchange, a CSFB access circuit to switch a CS domain network, and the user equipment is The reason why the CSFB accesses the CS domain network is sent to the system sending unit;

所述系统接收单元还用于在所述用户设备语音通话结束后，接收所述用户设备的语音通话结束标识，并将所述语音通话结束标识发送至系统发送单元； The system receiving unit is further configured to: after the end of the voice call of the user equipment, receive a voice call end identifier of the user equipment, and send the voice call end identifier to a system sending unit;

系统发送单元，用于根据所述用户设备由于 C SFB接入 CS域网络的原因，触发向所述用户设备发送返回指令，以便所述用户设备根据所述返回指令返回长期演进 LTE网络。 And a system sending unit, configured to send a return instruction to the user equipment according to the reason that the user equipment accesses the CS domain network, so that the user equipment returns to the long term evolution LTE network according to the return instruction.

在第一种可能的实现方式中，结合第四方面，所述基站子系统为全球移动通信系统 GSM/增强型数据速率 GSM演进技术无线接入网，或全球陆上无线接入网的基站子系统。 In a first possible implementation, in combination with the fourth aspect, the base station subsystem is a global mobile communication system GSM/enhanced data rate GSM evolution technology radio access network, or a base station of a global terrestrial radio access network. system.

在第二种可能的实现方式中，结合第四方面，所述系统接收单元具体用于： In a second possible implementation manner, in combination with the fourth aspect, the system receiving unit is specifically configured to:

在所述用户设备向移动管理实体发起语音呼叫请求后，接收所述用户设备发送的业务请求信息，所述业务请求信息包括所述用户设备由于 C SFB接入电路交换 C S域网络的原因。在第三种可能的实现方式中，结合第四方面，所述系统接收单元具体用于： After the user equipment initiates a voice call request to the mobility management entity, the service request information sent by the user equipment is received, where the service request information includes the reason that the user equipment accesses the CS domain network due to the C SFB access circuit. In a third possible implementation, in combination with the fourth aspect, the system receiving unit is specifically configured to:

在第四种可能的实现方式中，结合第四方面的第三种可能的实现方式，所述用户设备由于 C SFB接入电路交换 C S域网络的原因是在结束小区切换之后，由所述移动管理实体发送至所述移动交换中心的。 In a fourth possible implementation manner, in combination with the third possible implementation manner of the foregoing aspect, the user equipment, because the C SFB accesses the circuit to exchange the CS domain network, is caused by the mobile after ending the cell handover. The management entity sends to the mobile switching center.

第五方面，提供一种用户设备，所述用户设备包括： A fifth aspect provides a user equipment, where the user equipment includes:

设备发送单元，用于在向移动管理实体发起语音呼叫请求后，向基站子系统发送业务请求信息，所述业务请求信息包括用户设备由于电路域交换回落 C SFB接入电路交换 CS域网络的原因； And a device sending unit, configured to send, to the base station subsystem, service request information after the voice call request is sent to the mobility management entity, where the service request information includes a user equipment exchanged back to the C SFB to access the circuit to exchange the CS domain network ;

所述设备发送单元还用于在语音通话结束后，向所述基站子系统发送语音通话结束标识，以便通知所述基站子系统所述用户设备已结束通话，使所述基站子系统根据所述用户设备由于 CSFB 接入电路交换 C S域网络的原因触发向所述用户设备发送返回指令；设备接收单元，用于接收所述基站子系统发送的返回指令，并根据所述返回指令返回 LTE网络。 The device sending unit is further configured to: after the end of the voice call, send a voice call end identifier to the base station subsystem, to notify the base station subsystem that the user equipment has ended the call, so that the base station subsystem according to the The user equipment sends a return instruction to the user equipment due to the CSFB accessing the CS domain network. The device receiving unit is configured to receive a return instruction sent by the base station subsystem, and return to the LTE network according to the return instruction.

第六方面，提供一种移动交换中心，所述用户交换中心包括：中心接收单元，用于接收基站子系统转发的用户设备发送的业务请求消息； The sixth aspect provides a mobile switching center, where the user switching center includes: a central receiving unit, configured to receive a service request message sent by a user equipment forwarded by the base station subsystem;

中心发送单元，用于向所述基站子系统发送用户设备由于电路域交换回落 CSFB接入电路交换 C S域网络的原因，以便在所述用户设备结束语音通话后，使所述基站子系统根据所述用户设备由于 CSFB接入电路交换 CS域网络的原因触发向所述用户设备发送返回指令。 a central transmitting unit, configured to send, to the base station subsystem, a reason that the user equipment accesses the circuit-switched CS domain network due to the circuit domain switching back to CSFB, so that after the user equipment ends the voice call, the base station subsystem is configured according to the The user equipment triggers sending a return instruction to the user equipment due to the CSFB accessing the circuit switched CS domain network.

在第一种可能的实现方式中，结合第六方面，所述中心发送单元还用于： In a first possible implementation, in combination with the sixth aspect, the central sending unit is further configured to:

在向所述基站子系统发送所述用户设备由于 C SFB 接入电路交换 C S 域网络的原因之前，从移动管理实体接收所述用户设备由于 CSFB接入电路交换 CS域网络的原因。 Transmitting the user equipment to the base station subsystem due to the C SFB access circuit Before the reason for the CS domain network, the mobile management entity receives the reason that the user equipment accesses the CS domain network due to CSFB access.

第七方面，提供一种基站子系统，所述子系统包括： In a seventh aspect, a base station subsystem is provided, where the subsystem includes:

第一接收器，用于获取用户设备由于电路域交换回落 C SFB 接入电路交换 C S域网络的原因； a first receiver, configured to acquire a user equipment due to a circuit domain exchange falling back C SFB access to the circuit switched C S domain network;

所述第一接收器还用于在所述用户设备语音通话结束后，接收所述用户设备的语音通话结束标识； The first receiver is further configured to: after the end of the voice call of the user equipment, receive a voice call end identifier of the user equipment;

第一发射器，用于根据所述用户设备接入 CS域网络的原因，触发向所述用户设备发送返回指令，以便所述用户设备根据所述返回指令返回长期演进 LTE网络。 And a first transmitter, configured to send a return instruction to the user equipment according to the reason that the user equipment accesses the CS domain network, so that the user equipment returns to the long term evolution LTE network according to the return instruction.

在第一种可能的实现方式中，结合第七方面，所述基站子系统为全球移动通信系统 GSM/增强型数据速率 GSM演进技术无线接入网，或全球陆上无线接入网的基站子系统。 In a first possible implementation, in combination with the seventh aspect, the base station subsystem is a global mobile communication system GSM/enhanced data rate GSM evolution technology radio access network, or a base station of a global terrestrial radio access network. system.

在第二种可能的实现方式中，结合第七方面，所述第一接收器具体用于： In a second possible implementation, in combination with the seventh aspect, the first receiver is specifically configured to:

在第三种可能的实现方式中，结合第七方面，所述第一接收器具体用于： In a third possible implementation, in combination with the seventh aspect, the first receiver is specifically configured to:

在第四种可能的实现方式中，结合第七方面的第三种可能的实现方式，所述用户设备由于 C SFB接入电路交换 C S域网络的原因是在结束小区切换之后，由所述移动管理实体发送至所述移动交换中心的。 In a fourth possible implementation manner, in combination with the third possible implementation manner of the seventh aspect, the user equipment, because the C SFB accesses the circuit to exchange the CS domain network, is caused by the mobile after ending the cell handover. The management entity sends to the mobile switching center.

第八方面，提供一种用户设备，所述用户设备包括： The eighth aspect provides a user equipment, where the user equipment includes:

第二发射器，用于在向移动管理实体发起语音呼叫请求后，向基站子系统发送业务请求信息，所述业务请求信息包括用户设备由于电路域交换回落 CSFB接入电路交换 C S域网络的原因；所述第二发射器还用于在语音通话结束后，向所述基站子系统发送语音通话结束标识，以便通知所述基站子系统所述用户设备已结束通话，使所述基站子系统根据所述用户设备由于 C SFB 接入电路交换 CS域网络的原因触发向所述用户设备发送返回指令； a second transmitter, configured to send service request information to the base station subsystem after the voice call request is initiated to the mobility management entity, where the service request information includes the user equipment The reason for switching the CSFB access circuit switched CS domain network in the circuit domain; the second transmitter is further configured to send a voice call end identifier to the base station subsystem after the end of the voice call, to notify the base station subsystem Ending the call by the user equipment, causing the base station subsystem to trigger sending a return instruction to the user equipment according to the reason that the user equipment accesses the CS domain network due to the C SFB access;

第二接收器，用于接收所述基站子系统发送的返回指令，并根据所述返回指令返回 LTE网络。 And a second receiver, configured to receive a return instruction sent by the base station subsystem, and return to the LTE network according to the return instruction.

第九方面，提供一种移动交换中心，所述交换中心包括：第三接收器，用于接收基站子系统转发的用户设备发送的业务请求消息； A ninth aspect, a mobile switching center is provided, where the switching center includes: a third receiver, configured to receive a service request message sent by a user equipment forwarded by a base station subsystem;

第三发射器，用于向所述基站子系统发送用户设备由于电路域交换回落 C SFB接入电路交换 C S域网络的原因，以便在所述用户设备结束语音通话后，使所述基站子系统根据所述用户设备由于 CSFB 接入电路交换 C S域网络的原因触发向所述用户设备发送返回指令。 a third transmitter, configured to send, to the base station subsystem, a user equipment due to circuit domain switching back to the C SFB access circuit switched CS domain network, so that after the user equipment ends the voice call, the base station subsystem is And triggering a return instruction to the user equipment according to the user equipment accessing the CS domain network due to the CSFB access.

在第一种可能的实现方式中，结合第九方面，所述第三接收器还用于： In a first possible implementation, in combination with the ninth aspect, the third receiver is further configured to:

在所述向所述基站子系统发送所述用户设备由于 C SFB 接入电路交换 CS域网络的原因之前，从移动管理实体接收所述用户设备由于 CSFB接入电路交换 C S域网络的原因。 Before the transmitting to the base station subsystem that the user equipment exchanges the CS domain network due to the C SFB access circuit, the mobile management entity receives the reason that the user equipment accesses the circuit switched C S domain network by the CSFB.

第十方面，提供一种通信系统，所述通信系统包括： According to a tenth aspect, a communication system is provided, where the communication system includes:

如第四方面所述的基站子系统，或如第七方面所述的基站子系统； A base station subsystem as described in the fourth aspect, or a base station subsystem as described in the seventh aspect;

如第五方面所述的用户设备，或如第八方面所述的用户设备；如第六方面所述的移动交换中心，或如第九方面所述的移动交换中心。 The user equipment according to the fifth aspect, or the user equipment according to the eighth aspect; the mobile switching center according to the sixth aspect, or the mobile switching center according to the ninth aspect.

本发明实施例提供一种在通话后返回长期演进网络的方法、设备和系统，基站子系统通过获取用户设备由于 C SFB 而接入电路交换 CS域网络的原因，使得基站子系统在用户设备结束通话后，根据用户设备由于 C SFB而接入电路交换 CS域网络的原因，触发向用户设备发送返回指令，使用户设备返回 LTE 网络。相比现有技术中需要用户设备执行小区重选才返回 LTE网络而言，提高了用户设备在结束语音业务后返回 LTE网络的速度，能够尽快享受 LTE高速数据流量，从而改善了用户体验。 The embodiments of the present invention provide a method, a device, and a system for returning to a long term evolution network after a call. The base station subsystem accesses the circuit switched CS domain network by acquiring the user equipment due to C SFB, so that the base station subsystem ends at the user equipment. After the call, the user is triggered to access the circuit-switched CS domain network due to the C SFB. The device sends a return command to return the user equipment to the LTE network. Compared with the prior art, the user equipment is required to perform cell reselection to return to the LTE network, which improves the speed at which the user equipment returns to the LTE network after ending the voice service, and can enjoy the LTE high-speed data traffic as soon as possible, thereby improving the user experience.

附图说明 DRAWINGS

为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。 In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

图 1 为本发明实施例提供的一种在通话后返回长期演进网络的方法的示意图； FIG. 1 is a schematic diagram of a method for returning to a long term evolution network after a call according to an embodiment of the present invention;

图 2 为本发明实施例提供的另一种在通话后返回长期演进网络的方法的示意图； 2 is a schematic diagram of another method for returning to a long term evolution network after a call according to an embodiment of the present invention;

图 3 为本发明实施例提供的又一种在通话后返回长期演进网络的方法的示意图； 3 is a schematic diagram of another method for returning to a long term evolution network after a call according to an embodiment of the present invention;

图 4 为本发明另一实施例提供的一种在通话后返回长期演进网络的方法的示意图； FIG. 4 is a schematic diagram of a method for returning to a long term evolution network after a call according to another embodiment of the present invention; FIG.

图 5 为本发明另一实施例还提供的另一种在通话后返回长期演进网络的方法的示意图； FIG. 5 is a schematic diagram of another method for returning to a long-term evolution network after a call according to another embodiment of the present invention; FIG.

图 6为本发明实施例提供的一种基站子系统的结构示意图；图 7为本发明实施例提供的一种用户设备的结构示意图；图 8为本发明实施例提供的一种移动交换中心的结构示意图；图 9为本发明实施例提供的另一种基站子系统的结构示意图；图 10为本发明实施例还提供的另一种用户设备的结构示意图；图 1 1为本发明实施例还提供的另一种移动交换中心的结构示意图； FIG. 6 is a schematic structural diagram of a base station subsystem according to an embodiment of the present invention; FIG. 7 is a schematic structural diagram of a user equipment according to an embodiment of the present invention; FIG. 8 is a schematic diagram of a mobile switching center according to an embodiment of the present invention; FIG. 9 is a schematic structural diagram of another base station subsystem according to an embodiment of the present invention; FIG. 10 is a schematic structural diagram of another user equipment according to an embodiment of the present invention; A schematic diagram of another mobile switching center provided;

图 12为本发明实施例提供的一种通信系统的结构示意图。 FIG. 12 is a schematic structural diagram of a communication system according to an embodiment of the present invention.

具体实施方式下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。 detailed description The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

本发明实施例所说的长期演进网络不仅指 LTE 网络，还包含 LTE的后续演进网络。 The long term evolution network in the embodiment of the present invention refers not only to an LTE network but also to a subsequent evolved network of LTE.

本发明实施例提供一种在通话后返回长期演进网络的方法，基于基站子系统侧，如图 1 所示，该方法包括： An embodiment of the present invention provides a method for returning to a long term evolution network after a call, which is based on a base station subsystem side, as shown in FIG. 1, the method includes:

5101、获取用户设备由于电路域交换回落（Circuit Switched Fallback , CSFB)接入电路交换（ Circuit Switched , CS ) 域网络的原因。 5101. Obtain a reason why the user equipment accesses a Circuit Switched (CS) domain network due to Circuit Switched Fallback (CSFB).

其中，用户设备由于 CSFB接入 CS域网络的原因可以从用户设备接收，也可以从移动交换中心接收。该用户设备由于 CSFB 接入 CS域网络的原因可以为主叫原因值也可以是被叫原因值。 The user equipment may be received from the user equipment or may be received from the mobile switching center because the CSFB accesses the CS domain network. The user equipment may be the primary cause value or the called cause value because the CSFB accesses the CS domain network.

5102、在用户设备语音通话结束后，接收用户设备的语音通话结束标识。 5102. After the end of the voice call of the user equipment, receive a voice call end identifier of the user equipment.

5103、根据用户设备接入 CS域网络的原因，触发向用户设备发送返回指令，以便用户设备根据返回指令返回长期演进网络。 5103. According to the reason that the user equipment accesses the CS domain network, triggering to send a return instruction to the user equipment, so that the user equipment returns to the long term evolution network according to the return instruction.

本发明提供一种在通话后返回长期演进网络的方法，基站子系统通过获取用户设备由于 CSFB而接入电路交换 CS域网络的原因，使得基站子系统在用户设备结束通话后，根据用户设备由于 CSFB 而接入电路交换 CS域网络的原因，触发向用户设备发送返回指令，使用户设备返回 LTE网络。相比现有技术中需要用户设备执行小区重选才返回 LTE网络而言，提高了用户设备在结束语音业务后返回 LTE 网络的速度，能够尽快享受 LTE 高速数据流量，从而改善了用户体验。 The present invention provides a method for returning to a long term evolution network after a call. The base station subsystem obtains a reason why the user equipment accesses the circuit switched CS domain network due to CSFB, so that the base station subsystem after the user equipment ends the call, according to the user equipment The CSFB is connected to the circuit-switched CS domain network, and triggers sending a return command to the user equipment to return the user equipment to the LTE network. Compared with the prior art, the user equipment is required to perform cell reselection to return to the LTE network, which improves the speed at which the user equipment returns to the LTE network after ending the voice service, and can enjoy the LTE high-speed data traffic as soon as possible, thereby improving the user experience.

本发明实施例提供一种通话后返回长期演进网络的方法，基于用户设备侧，如图 2所示，该方法包括： 5201、在向移动管理实体发起语音呼叫请求后，向基站子系统发送业务请求信息，业务请求信息包括用户设备由于电路域交换回落 CSFB接入电路交换 CS域网络的原因。 An embodiment of the present invention provides a method for returning to a long term evolution network after a call, based on the user equipment side, as shown in FIG. 2, the method includes: After the voice call request is initiated to the mobility management entity, the service request information is sent to the base station subsystem, where the service request information includes the user equipment accessing the CS-domain network due to the circuit domain exchange falling back CSFB.

5202、在语音通话结束后，向基站子系统发送语音通话结束标识，以便通知基站子系统用户设备已结束通话，使基站子系统根据用户设备由于 CSFB接入电路交换 CS域网络的原因触发向用户设备发送返回指令。 After the voice call ends, the voice call end identifier is sent to the base station subsystem, so as to notify the base station subsystem that the user equipment has ended the call, so that the base station subsystem triggers the user to the user according to the CSFB access circuit switching the CS domain network. The device sends a return instruction.

5203、接收基站子系统发送的返回指令，并根据返回指令返回 LTE网络。 S203: Receive a return instruction sent by the base station subsystem, and return to the LTE network according to the return instruction.

其中，这里的基站子系统可以为 GERAN或 UTRAN的基站子系统。 Wherein, the base station subsystem herein may be a base station subsystem of GERAN or UTRAN.

本发明实施例提供一种在通话后返回长期演进网络的方法，基站子系统通过获取用户设备由于 CSFB而接入电路交换 CS域网络的原因，使得基站子系统在用户设备结束通话后，根据用户设备由于 CSFB而接入电路交换 CS域网络的原因，触发向用户设备发送返回指令，使用户设备返回 LTE 网络。相比现有技术中需要用户设备执行小区重选才返回 LTE 网络而言，提高了用户设备在结束语音业务后返回 LTE网络的速度，能够尽快享受 LTE高速数据流量，从而改善了用户体验。 The embodiment of the present invention provides a method for returning to a long term evolution network after a call. The base station subsystem obtains a reason why the user equipment accesses the circuit switched CS domain network by using the CSFB, so that the base station subsystem finishes the call after the user equipment, according to the user. The reason why the device accesses the circuit-switched CS domain network due to CSFB triggers sending a return command to the user equipment, so that the user equipment returns to the LTE network. Compared with the prior art, the user equipment is required to perform cell reselection to return to the LTE network, which improves the speed at which the user equipment returns to the LTE network after ending the voice service, and can enjoy the LTE high-speed data traffic as soon as possible, thereby improving the user experience.

本发明实施例提供一种通话后返回长期演进网络的方法，基于移动交换中心侧，如图 3所示，该方法包括： An embodiment of the present invention provides a method for returning to a long term evolution network after a call, and based on the mobile switching center side, as shown in FIG. 3, the method includes:

5301、接收基站子系统转发的用户设备发送的业务请求消息。 S301. Receive a service request message sent by a user equipment forwarded by the base station subsystem.

5302、向基站子系统发送用户设备由于电路域交换回落 CSFB 接入电路交换 CS域网络的原因，以便在用户设备结束语音通话后，使基站子系统根据用户设备由于 CSFB接入电路交换 CS域网络的原因触发向用户设备发送返回指令。 5302. Sending, to the base station subsystem, the user equipment, because the circuit domain exchanges back to the CSFB to access the circuit switched CS domain network, so that after the user equipment ends the voice call, the base station subsystem exchanges the CS domain network according to the user equipment due to the CSFB access circuit. The reason triggers a return command sent to the user device.

另外，当移动交换中心用户设备由于 CSFB接入电路交换 CS域网络的原因时，在 S302之前，还可以包括： In addition, when the mobile switching center user equipment accesses the CS domain network due to the CSFB access, before S302, the method may further include:

从移动管理实体接收用户设备由于 CSFB接入电路交换 CS域网络的原因，该用户设备接入 CS域网络的原因一般是在结束小区切换之后，由移动管理实体发送给移动交换中心的。 Receiving user equipment from the mobility management entity due to CSFB access to the circuit switched CS domain network For the reason of the network, the reason why the user equipment accesses the CS domain network is generally sent by the mobility management entity to the mobile switching center after ending the cell handover.

本发明实施例提供一种通话后返回长期演进网络的方法，基站子系统通过获取用户设备由于 CSFB而接入电路交换 CS域网络的原因，使得基站子系统在用户设备结束通话后，根据用户设备由于 CSFB而接入电路交换 CS域网络的原因，触发向用户设备发送返回指令，使用户设备返回 LTE 网络。相比现有技术中需要用户设备执行小区重选才返回 LTE 网络而言，提高了用户设备在结束语音业务后返回 LTE网络的速度，能够尽快享受 LTE高速数据流量，从而改善了用户体验。 The embodiment of the present invention provides a method for returning to a long term evolution network after a call. The base station subsystem obtains a reason why the user equipment accesses the circuit switched CS domain network by using the CSFB, so that the base station subsystem finishes the call after the user equipment, according to the user equipment. The reason for accessing the circuit-switched CS domain network due to CSFB is to trigger the sending of a return command to the user equipment, so that the user equipment returns to the LTE network. Compared with the prior art, the user equipment is required to perform cell reselection to return to the LTE network, which improves the speed at which the user equipment returns to the LTE network after ending the voice service, and can enjoy the LTE high-speed data traffic as soon as possible, thereby improving the user experience.

为了更详细的陈述本发明的内容，本实施例还提供了另一种在通话后返回长期演进网络的方法，其中的一种实现方式如图 4所示，包括： In order to explain the content of the present invention in more detail, the embodiment further provides another method for returning to the long term evolution network after the call. One implementation manner is as shown in FIG. 4, including:

S401、用户设备（ User Equipment , UE )向移动管理实体（ Mobile Management Entity , MME ) 发送语音呼叫请求， MME 接受语音呼叫请求后，与 UE建立语音呼叫连接。 S401: The User Equipment (UE) sends a voice call request to the Mobile Management Entity (MME), and the MME establishes a voice call connection with the UE after accepting the voice call request.

5402、基站（eNode B)向 MME发送小区切换请求，在得到 MME 的响应消息后，基站通知 UE小区切换已完成。 5402. The base station (eNode B) sends a cell handover request to the MME. After obtaining the response message of the MME, the base station notifies the UE that the cell handover has been completed.

5403、 UE向基站子系统（ Base Station Subsystem , B SS ) 发送业务请求消息，业务请求消息内包括 UE 由于 CSFB接入 CS域网络的原因。 5403. The UE sends a service request message to the base station subsystem (BSS), where the service request message includes the UE accessing the CS domain network by using the CSFB.

其中，UE由于 CSFB接入 CS域网络的原因可以为： " Originating Conversation Call Due to CSFB " 或 " Terminating Conversation Call Due to CSFB " , 即由于 CSFB发起的主叫或由于 CSFB发起的被叫。 The reason why the UE accesses the CS domain network due to CSFB may be: "Equestrianating Conversation Call Due to CSFB" or "Terminating Conversation Call Due to CSFB", that is, the calling party initiated by CSFB or the called party initiated by CSFB.

其中， CS域网络为 GERAN或 UTRAN的 CS域网络。 The CS domain network is a CS domain network of GERAN or UTRAN.

5404、在 UE结束语音通话后， UE向 BS S发送语音通话结束标识，以便通知 B SS该 UE 已结束通话。示例性的，该结束标识的发送方式包括但不限于通过现有的消息携带，或者通过新建新的消息来携带。 S405、 B SS接收到语音通话结束标识后，根据 UE由于 CSFB接入 CS域网络的原因触发向 UE发送返回指令，以便 UE返回 LTE网络。 5404. After the UE ends the voice call, the UE sends a voice call end identifier to the BS S, so as to notify the B SS that the UE has ended the call. Exemplarily, the sending manner of the ending identifier includes, but is not limited to, being carried by an existing message, or carried by creating a new message. S405. After receiving the voice call end identifier, the SSS triggers sending a return instruction to the UE according to the reason that the UE accesses the CS domain network, so that the UE returns to the LTE network.

因此，相比现有基于重定向的 CSFB的技术中， UE在通话结束后需要测量 LTE小区信号，当 LTE的小区信号满足设备进行小区重选的时候， UE才能返回 LTE , 本实施例可以使 UE在结束通话后立即返回到 LTE 网络中，提高了用户设备在结束语音业务后返回 LTE 网络的速度。 Therefore, the UE needs to measure the LTE cell signal after the end of the call, and the UE can return to the LTE when the LTE cell signal satisfies the cell reselection. This embodiment can enable The UE returns to the LTE network immediately after the end of the call, which improves the speed at which the user equipment returns to the LTE network after ending the voice service.

在另一种实现方式下，如图 5所示，该方法包括： In another implementation manner, as shown in FIG. 5, the method includes:

S501、 UE 向 MME发送语音呼叫请求， MME接受语音呼叫请求后，与 UE建立语音呼叫连接。 S501. The UE sends a voice call request to the MME, and after the MME accepts the voice call request, establishes a voice call connection with the UE.

S502、基站向 MME发送小区切换请求，在得到 MME的响应消息后，基站通知 UE小区切换已完成。 S502. The base station sends a cell handover request to the MME. After obtaining the response message of the MME, the base station notifies the UE that the cell handover has been completed.

5503、 MME与 MSC交互 UE由于 CSFB接入 CS域网络的原因，该原因可以是 " UE access GU due to CSFB "。 5503. The MME interacts with the MSC. The reason may be "UE access GU due to CSFB" because the CSFB accesses the CS domain network.

其中，此处的原因 " UE access GU due to CSFB " 与上一实施例中 " Originating Conversation Call Due to CSFB " 的名称、内容以及收发双方不相同，但可以达到相同的效果。 Here, the reason "UE access GU due to CSFB" is different from the name, content, and transmission and reception sides of the "Original Conversation Call Due to CSFB" in the previous embodiment, but the same effect can be achieved.

5504、 UE向 BS S发送业务请求消息。 S504: The UE sends a service request message to the BS S.

S505、 B S S 把接收到的业务请求消息转发给移动交换中心 ( Mobile Switch Center , MSC )。 S505. The B S S forwards the received service request message to the Mobile Switch Center (MSC).

5506、 MSC向 B SS发送 UE由于 CSFB接入 CS域网络的原因。 5506. The MSC sends a message to the B SS to the UE that the CSFB accesses the CS domain network.

5507、在 UE结束语音通话后， UE向 BS S发送语音通话结束标识，以便通知 B S S该 UE 已结束通话。 5507. After the UE ends the voice call, the UE sends a voice call end identifier to the BS S, so as to notify the B S S that the UE has ended the call.

5508、 B SS接收到语音通话结束标识后，根据 UE由于 CSFB接入 CS 域网络的原因触发向 UE 发送返回指令，以便 UE返回 LTE 网络。 After receiving the voice call end identifier, the B SS triggers sending a return command to the UE according to the reason that the UE accesses the CS domain network, so that the UE returns to the LTE network.

这样，相比现有基于重定向的 CSFB的技术而言， UE在通话结束后需要测量 LTE小区信号，当 LTE的小区信号满足设备进行小区重选的时候， UE才能返回 LTE , 本实施例可以使 UE在结束通话后立即返回到 LTE 网络中，提高了用户设备在结束语音业务后返回 LTE网络的速度。 In this way, compared with the existing CSFB-based technology, the UE needs to measure the LTE cell signal after the call ends, and the LTE cell signal satisfies the device for the cell. During the reselection, the UE can return to the LTE network. In this embodiment, the UE can return to the LTE network immediately after the end of the call, which improves the speed at which the user equipment returns to the LTE network after ending the voice service.

需要说明的，在第三代合作伙伴项目（ the 3rd Generation Partnership Project , 3 GPP ) 的新协议中，例如在 R9或 R10的协议中，由于新协议流程中增加了 UE与 MSC之间传递 CSFB信息的字段，所以，当釆用在 3GGP新的协议时，例如釆用 R9或 R10时，上述方法可以不包括 S503 , 其余步骤完全相同，不再赘述。 It should be noted that in the new protocol of the 3rd Generation Partnership Project (3GPP), for example, in the protocol of R9 or R10, the CSFB information is transmitted between the UE and the MSC due to the new protocol flow. The field, so, when used in the new 3GGP protocol, for example, when using R9 or R10, the above method may not include S503, and the remaining steps are identical and will not be described again.

本发明实施例提供了一种基站子系统 01 ,该基站子系统 01 可以为 GERAN或 UTRAN的基站子系统，如图 6所示，包括： The embodiment of the present invention provides a base station subsystem 01, which may be a base station subsystem of a GERAN or UTRAN. As shown in FIG. 6, the method includes:

系统接收单元 011 , 用于获取用户设备由于电路域交换回落 CSFB接入电路交换 CS域网络的原因，并将用户设备由于 CSFB接入 CS域网络的原因发送至系统发送单元 012 ; The system receiving unit 011 is configured to acquire the user equipment due to the circuit domain exchange falling back CSFB access to the circuit switched CS domain network, and send the user equipment to the system sending unit 012 because the CSFB is connected to the CS domain network;

系统接收单元 01 1 还用于在用户设备语音通话结束后，接收用户设备的语音通话结束标识，并将语音通话结束标识发送至系统发送单元 012 ; The system receiving unit 01 1 is further configured to: after the end of the voice call of the user equipment, receive the voice call end identifier of the user equipment, and send the voice call end identifier to the system sending unit 012;

系统发送单元 012 , 用于根据用户设备由于 CSFB接入 CS域网络的原因，触发向用户设备发送返回指令，以便用户设备根据返回指令返回长期演进 LTE网络。 The system sending unit 012 is configured to send a return instruction to the user equipment according to the user equipment accessing the CS domain network, so that the user equipment returns to the long term evolution LTE network according to the return instruction.

其中，系统接收单元 01 1可以具体用于： The system receiving unit 01 1 may be specifically configured to:

在用户设备向移动管理实体发起语音呼叫请求后，接收用户设备发送的业务请求信息，业务请求信息包括用户设备由于 C SFB 接入电路交换 C S域网络的原因；或 After the user equipment initiates a voice call request to the mobility management entity, the receiving user sets The service request information to be sent, the service request information includes the reason that the user equipment accesses the CS domain network due to the C SFB access circuit; or

接收移动交换中心发送的用户设备由于 CSFB接入电路交换 C S 域网络的原因。 Receiving the user equipment sent by the mobile switching center because CSFB accesses the circuit to exchange the C S domain network.

进一步的，用户设备由于 CSFB接入电路交换 C S域网络的原因是在结束小区切换之后，由移动管理实体发送至移动交换中心的。 Further, the user equipment is sent by the mobility management entity to the mobile switching center after the cell handover is terminated because the CSFB accesses the circuit switched C S domain network.

本发明实施例提供一种基站子系统，基站子系统通过获取用户设备由于 C SFB而接入电路交换 C S域网络的原因，使得基站子系统在用户设备结束通话后，根据用户设备由于 CSFB 而接入电路交换 CS域网络的原因，触发向用户设备发送返回指令，使用户设备返回 LTE 网络。相比现有技术中需要用户设备执行小区重选才返回 LTE 网络而言，提高了用户设备在结束语音业务后返回 LTE网络的速度，能够尽快享受 LTE高速数据流量，从而改善了用户体验。 The embodiment of the present invention provides a base station subsystem. The base station subsystem accesses the circuit-switched CS domain network by acquiring the C SFB of the user equipment, so that the base station subsystem receives the CSFB according to the user equipment after the user equipment ends the call. The reason for entering the circuit-switched CS domain network is to trigger the sending of a return command to the user equipment, so that the user equipment returns to the LTE network. Compared with the prior art, the user equipment is required to perform cell reselection to return to the LTE network, which improves the speed at which the user equipment returns to the LTE network after ending the voice service, and can enjoy the LTE high-speed data traffic as soon as possible, thereby improving the user experience.

本发明实施例提供一种用户设备 02 , 如图 7 所示，包括：设备发送单元 021 , 用于在向移动管理实体发起语音呼叫请求后，向基站子系统发送业务请求信息，业务请求信息包括用户设备由于电路域交换回落 C SFB接入电路交换 CS域网络的原因； The embodiment of the present invention provides a user equipment 02, as shown in FIG. 7, including: a device sending unit 021, configured to send service request information to a base station subsystem after the voice call request is initiated to the mobility management entity, where the service request information includes The reason why the user equipment accesses the CS domain network due to the circuit domain switching back to the C SFB;

设备发送单元 021 还用于在语音通话结束后，向基站子系统发送语音通话结束标识，以便通知基站子系统用户设备已结束通话，使基站子系统根据用户设备由于 C SFB接入电路交换 C S域网络的原因触发向用户设备发送返回指令； The device sending unit 021 is further configured to send a voice call end identifier to the base station subsystem after the end of the voice call, to notify the base station subsystem that the user equipment has ended the call, so that the base station subsystem exchanges the CS domain according to the user equipment due to the C SFB access circuit. The reason for the network triggers sending a return instruction to the user equipment;

设备接收单元 022 , 用于接收基站子系统发送的返回指令，并根据返回指令返回 LTE网络。 The device receiving unit 022 is configured to receive a return instruction sent by the base station subsystem, and return to the LTE network according to the return instruction.

本发明实施例提供一种用户设备，该用户设备通过向基站子系统发送该用户设备由于 CSFB而接入电路交换 C S域网络的原因，使得基站子系统在用户设备结束通话后，根据用户设备由于 C SFB 而接入电路交换 C S域网络的原因，触发向用户设备发送返回指令，使用户设备返回 LTE 网络。相比现有技术中需要用户设备执行小区重选才返回 LTE 网络而言，提高了用户设备在结束语音业务后返回 LTE 网络的速度，能够尽快享受 LTE 高速数据流量，从而改善了用户体验。 An embodiment of the present invention provides a user equipment, by sending a user equipment to a base station subsystem to access a circuit-switched CS domain network due to CSFB, so that the base station subsystem after the user equipment ends the call, according to the user equipment The reason for accessing the circuit-switched CS domain network by C SFB is to trigger the sending of a return command to the user equipment, so that the user equipment returns to the LTE network. Compared with the prior art, when the user equipment is required to perform cell reselection to return to the LTE network, the user equipment is returned after ending the voice service. The speed of the LTE network can enjoy LTE high-speed data traffic as soon as possible, thus improving the user experience.

本发明提供一种移动交换中心 03 , 如图 8所示，包括：中心接收单元 03 1 ,用于接收基站子系统转发的用户设备发送的业务请求消息； The present invention provides a mobile switching center 03, as shown in FIG. 8, comprising: a central receiving unit 03 1 for receiving a service request message sent by a user equipment forwarded by a base station subsystem;

中心发送单元 032 ,用于向基站子系统发送用户设备由于电路域交换回落 C SFB接入电路交换 C S域网络的原因，以便在用户设备结束语音通话后，使基站子系统根据用户设备由于 C SFB 接入电路交换 CS域网络的原因触发向用户设备发送返回指令。 The central sending unit 032 is configured to send, to the base station subsystem, a reason why the user equipment accesses the circuit switched CS domain network due to the circuit domain switching back to the C SFB, so that after the user equipment ends the voice call, the base station subsystem is configured according to the user equipment due to C SFB The reason for accessing the circuit switched CS domain network triggers the sending of a return command to the user equipment.

进一步的，中心接收单元 032还用于： Further, the central receiving unit 032 is further configured to:

在向基站子系统发送用户设备由于 CSFB接入电路交换 C S域网络的原因之前，从移动管理实体接收用户设备由于 CSFB 接入电路交换 C S域网络的原因。 Before transmitting the user equipment to the base station subsystem, the CSFB receives the C S domain network due to the CSFB access circuit from the mobility management entity before the CSFB accesses the circuit switched C S domain network.

本发明实施例提供一种移动交换中心，在接收到基站子系统转发的用户设备发送的业务请求消息后，移动交换中心向基站子系统发送用户设备接入 CS域网络的原因，使得基站子系统在用户设备结束通话后，根据用户设备由于 C SFB而接入电路交换 C S域网络的原因，触发向用户设备发送返回指令，使用户设备返回 LTE网络。相比现有技术中需要用户设备执行小区重选才返回 LTE网络而言，提高了用户设备在结束语音业务后返回 LTE 网络的速度，能够尽快享受 LTE高速数据流量，从而改善了用户体验。 An embodiment of the present invention provides a mobile switching center, after receiving a service request message sent by a user equipment forwarded by a base station subsystem, the mobile switching center sends a reason for the user equipment to access the CS domain network to the base station subsystem, so that the base station subsystem After the user equipment ends the call, according to the reason that the user equipment accesses the circuit-switched CS domain network due to the C SFB, a trigger is sent to the user equipment to return the user equipment to the LTE network. Compared with the prior art, the user equipment is required to perform cell reselection to return to the LTE network, which improves the speed at which the user equipment returns to the LTE network after ending the voice service, and can enjoy the LTE high-speed data traffic as soon as possible, thereby improving the user experience.

本发明实施例提供一种基站子系统 04 ,该基站子系统 04可以为 GERAN或 UTRAN的基站子系统，如图 9所示，基站子系统 04 包括第一存储器 041、第一处理器 042、第一接收器 043和第一发射器 044 , 第一存储器 041、第一处理器 042、第一接收器 043 和第一发射器 044通过第一总线 045连接，其中第一存储器 041 用于存储指令，第一处理器 042 用于执行该指令来指示各个单元执行本发明实施例提供的方法，其中： The embodiment of the present invention provides a base station subsystem 04, which may be a base station subsystem of GERAN or UTRAN. As shown in FIG. 9, the base station subsystem 04 includes a first memory 041, a first processor 042, and a first a receiver 043 and a first transmitter 044, a first memory 041, a first processor 042, a first receiver 043 and a first transmitter 044 are connected by a first bus 045, wherein the first memory 041 is used to store instructions, The first processor 042 is configured to execute the instruction to instruct each unit to perform the method provided by the embodiment of the present invention, where:

第一接收器 043 , 用于获取用户设备由于电路域交换回落 CSFB 接入电路交换 C S域网络的原因； a first receiver 043, configured to acquire user equipment due to circuit domain switching back to CSFB The reason for accessing the circuit switched CS domain network;

第一接收器 043 还用于在用户设备语音通话结束后，接收用户设备的语音通话结束标识； The first receiver 043 is further configured to receive a voice call end identifier of the user equipment after the user equipment voice call ends;

第一发射器 044 , 用于根据用户设备接入 CS域网络的原因，触发向用户设备发送返回指令，以便用户设备根据返回指令返回长期演进 LTE网络。 The first transmitter 044 is configured to send a return instruction to the user equipment according to the user equipment accessing the CS domain network, so that the user equipment returns to the long term evolution LTE network according to the return instruction.

其中，第一接收器 043还用于： The first receiver 043 is further configured to:

在用户设备向移动管理实体发起语音呼叫请求后，接收用户设备发送的业务请求信息，业务请求信息包括用户设备由于 C SFB 接入电路交换 C S域网络的原因；或 After the user equipment initiates a voice call request to the mobility management entity, receiving service request information sent by the user equipment, where the service request information includes the user equipment accessing the C S domain network due to C SFB; or

其中，用户设备由于 CSFB接入电路交换 CS域网络的原因是在结束小区切换之后，由移动管理实体发送至移动交换中心的。 The reason for the user equipment accessing the CS domain network by the CSFB is that the mobile management entity sends the handover to the mobile switching center after the cell handover is ended.

本发明实施例还提供一种用户设备 05 , 如图 10所示，用户设备 05 包括第二存储器 05 1、第二处理器 052、第二接收器 053 和第二发射器 054 , 第二存储器 051、第二处理器 052、第二接收器 053和第二发射器 054通过第二总线 055连接，其中第二存储器 051 用于存储指令，第二处理器 052 用于执行该指令来指示各个单元执行本发明实施例提供的方法，其中： The embodiment of the present invention further provides a user equipment 05. As shown in FIG. 10, the user equipment 05 includes a second memory 05 1 , a second processor 052 , a second receiver 053 , and a second transmitter 054 . The second memory 051 The second processor 052, the second receiver 053, and the second transmitter 054 are connected by a second bus 055, wherein the second memory 051 is used to store instructions, and the second processor 052 is configured to execute the instructions to instruct each unit to execute The method provided by the embodiment of the present invention, wherein:

第二发射器 054 , 用于在向移动管理实体发起语音呼叫请求后，向基站子系统发送业务请求信息，业务请求信息包括用户设备由于电路域交换回落 C SFB接入电路交换 CS域网络的原因； a second transmitter 054, configured to send service request information to the base station subsystem after the voice call request is initiated to the mobility management entity, where the service request information includes the user equipment The reason why the circuit domain exchange falls back to the C SFB access circuit switched CS domain network;

第二发射器 054 还用于在语音通话结束后，向基站子系统发送语音通话结束标识，以便通知基站子系统用户设备已结束通话，使基站子系统根据用户设备由于 C SFB接入电路交换 C S域网络的原因触发向用户设备发送返回指令。 The second transmitter 054 is further configured to send a voice call end identifier to the base station subsystem after the end of the voice call, to notify the base station subsystem that the user equipment has ended the call, so that the base station subsystem exchanges the CS according to the user equipment due to the C SFB access. The reason for the domain network triggers the sending of a return instruction to the user equipment.

第二接收器 053 , 用于接收基站子系统发送的返回指令，并根据返回指令返回 LTE网络。 The second receiver 053 is configured to receive a return instruction sent by the base station subsystem, and return to the LTE network according to the return instruction.

本发明实施例提供一种用户设备，该用户设备通过向基站子系统发送该用户设备由于 CSFB而接入电路交换 C S域网络的原因，使得基站子系统在用户设备结束通话后，根据用户设备由于 C SFB 而接入电路交换 C S域网络的原因，触发向用户设备发送返回指令，使用户设备返回 LTE 网络。相比现有技术中需要用户设备执行小区重选才返回 LTE 网络而言，提高了用户设备在结束语音业务后返回 LTE 网络的速度，能够尽快享受 LTE 高速数据流量，从而改善了用户体验。 An embodiment of the present invention provides a user equipment, by sending a user equipment to a base station subsystem to access a circuit-switched CS domain network due to CSFB, so that the base station subsystem after the user equipment ends the call, according to the user equipment The reason for accessing the circuit-switched CS domain network by C SFB is to trigger the sending of a return command to the user equipment, so that the user equipment returns to the LTE network. Compared with the prior art, the user equipment is required to perform cell reselection to return to the LTE network, which improves the speed at which the user equipment returns to the LTE network after ending the voice service, and can enjoy the LTE high-speed data traffic as soon as possible, thereby improving the user experience.

本发明实施例还提供一种移动交换中心 06 , 如图 1 1 所示，移动交换中心 06 包括第三存储器 061、第三处理器 062、第三接收器 063 和第三发射器 064 , 第三存储器 061、第三处理器 062、第三接收器 063和第三发射器 064通过第三总线 065连接，其中第三存储器 061 用于存储指令，第三处理器 062 用于执行该指令来指示各个单元执行本发明实施例提供的方法，其中： The embodiment of the present invention further provides a mobile switching center 06. As shown in FIG. 11, the mobile switching center 06 includes a third memory 061, a third processor 062, a third receiver 063, and a third transmitter 064. The memory 061, the third processor 062, the third receiver 063, and the third transmitter 064 are connected by a third bus 065, wherein the third memory 061 is used to store instructions, and the third processor 062 is configured to execute the instructions to indicate each The unit performs the method provided by the embodiment of the present invention, where:

第三接收器 063 ,用于接收基站子系统转发的用户设备发送的业务请求消息； a third receiver 063, configured to receive a service request message sent by the user equipment forwarded by the base station subsystem;

第三发射器 064 ,用于向基站子系统发送用户设备由于电路域交换回落 CSFB接入电路交换 C S域网络的原因，以便在用户设备结束语音通话后，使基站子系统根据用户设备由于 C SFB 接入电路交换 CS域网络的原因触发向用户设备发送返回指令。 The third transmitter 064 is configured to send, to the base station subsystem, the user equipment due to the circuit domain exchange falling back to the CSFB access circuit switched CS domain network, so that after the user equipment ends the voice call, the base station subsystem is configured according to the user equipment due to C SFB The reason for accessing the circuit switched CS domain network triggers the sending of a return command to the user equipment.

可选的，第三接收器 063还可以用于： Optionally, the third receiver 063 can also be used to:

在向基站子系统发送用户设备由于 CSFB接入电路交换 C S域网络的原因之前，从移动管理实体接收用户设备由于 CSFB 接入电路交换 CS域网络的原因。 Sending user equipment to the base station subsystem due to CSFB access to circuit-switched CS domain network Before the cause of the network, the user equipment is received from the mobility management entity because the CSFB accesses the circuit to exchange the CS domain network.

本发明实施例提供一种移动交换中心，在接收到基站子系统转发的用户设备发送的业务请求消息后，移动交换中心向基站子系统发送用户设备接入 CS域网络的原因，使得基站子系统在用户设备结束通话后，根据用户设备由于 CSFB而接入电路交换 CS域网络的原因，触发向用户设备发送返回指令，使用户设备返回 LTE网络。相比现有技术中需要用户设备执行小区重选才返回 LTE网络而言，提高了用户设备在结束语音业务后返回 LTE 网络的速度，能够尽快享受 LTE高速数据流量，从而改善了用户体验。 An embodiment of the present invention provides a mobile switching center, after receiving a service request message sent by a user equipment forwarded by a base station subsystem, the mobile switching center sends a reason for the user equipment to access the CS domain network to the base station subsystem, so that the base station subsystem After the user equipment ends the call, according to the reason that the user equipment accesses the circuit-switched CS domain network due to CSFB, a trigger is sent to the user equipment to return the user equipment to the LTE network. Compared with the prior art, the user equipment is required to perform cell reselection to return to the LTE network, which improves the speed at which the user equipment returns to the LTE network after ending the voice service, and can enjoy the LTE high-speed data traffic as soon as possible, thereby improving the user experience.

本发明实施例还提供一种通信系统 7 , 如图 12所示，包括：如上述实施例的基站子系统 01或上述实施例的基站子系统 04；如上述实施例的用户设备 02或上述实施例的用户设备 05；如上述实施例的移动交换中心 03或上述实施例的移动交换中心 The embodiment of the present invention further provides a communication system 7, as shown in FIG. 12, comprising: the base station subsystem 01 as in the above embodiment or the base station subsystem 04 of the above embodiment; the user equipment 02 as in the above embodiment or the above implementation User equipment 05 of the example; the mobile switching center 03 of the above embodiment or the mobile switching center of the above embodiment

06。 06.

本发明实施例提供一种通信系统，通过用户设备向基站子系统发送该用户设备由于 CSFB而接入电路交换 CS域网络的原因，或者，通过移动交换中心向基站子系统发送用户设备由于 CSFB 而接入电路交换 CS域网络的原因，使得基站子系统在用户设备结束通话后，根据用户设备由于 CSFB而接入电路交换 CS域网络的原因，触发向用户设备发送返回指令，使用户设备返回 LTE 网络。相比现有技术中需要用户设备执行小区重选才返回 LTE 网络而言，提高了用户设备在结束语音业务后返回 LTE网络的速度，能够尽快享受 LTE高速数据流量，从而改善了用户体验。 An embodiment of the present invention provides a communication system, by using a user equipment, to send a user equipment to a base station subsystem to access a circuit switched CS domain network due to CSFB, or to send a user equipment to a base station subsystem through a mobile switching center due to CSFB. The reason for accessing the circuit-switched CS domain network is that the base station subsystem sends a return command to the user equipment according to the reason that the user equipment accesses the circuit-switched CS domain network due to the CSFB after the user equipment ends the call, so that the user equipment returns to the LTE. The internet. Compared with the prior art, the user equipment is required to perform cell reselection to return to the LTE network, which improves the speed at which the user equipment returns to the LTE network after ending the voice service, and can enjoy the LTE high-speed data traffic as soon as possible, thereby improving the user experience.

在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置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，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的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，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。 In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, 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, for example, 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 mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者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者全部单元来实现本实施例方案的目的。 The units described as separate components may or may not be physically separated, and the components displayed as the units may or may not be physical units, and may be located in one place or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiment of the present embodiment.

另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理包括，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釆用硬件的形式实现，也可以釆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 unit, or each unit may be physically included separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中，包括若干指令用以使得一台计算机设备（可以是个人计算机，服务器，或者网络设备等）执行本发明各个实施例所述方法的部分步骤。而前述的存储介质包括： U 盘、移动硬盘、只读存储器 ( Read-Only Memory ,简称 ROM )、随机存取存储器（ Random Access Memory , 简称 RAM )、磁碟或者光盘等各种可以存储程序代码的介以上所述，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-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The software functional unit described above is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform portions of the steps of the various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a disk or an optical disk, and the like, which can store program codes. The above is only the 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 replacements within the technical scope disclosed by the present invention. All 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.

Claims

claims

1. A method of returning to the Long Term Evolution network after a call, characterized in that the method includes:

Obtain the reason why the user equipment fell back to CSFB and connected to the circuit-switched CS domain network due to circuit domain switching;

After the voice call on the user equipment ends, receive the voice call end identification of the user equipment;

According to the reason why the user equipment accesses the CS domain network, a return instruction is sent to the user equipment, so that the user equipment returns to the Long Term Evolution LTE network according to the return instruction.

2. The method according to claim 1, wherein the reasons for obtaining the user equipment's access to the circuit-switched CS domain network due to CSFB include:

After the user equipment initiates a voice call request to the mobility management entity, the service request information sent by the user equipment is received, and the service request information includes the reason why the user equipment accesses the circuit-switched CS domain network due to CSFB.

3. The method according to claim 1, wherein the reasons for obtaining the user equipment's access to the circuit-switched CS domain network due to CSFB include:

The user equipment received from the mobile switching center is due to CSFB accessing the circuit-switched CS domain network.

4. The method according to claim 3, characterized in that, the reason why the user equipment accesses the circuit-switched CS domain network due to CSFB is that after completing the cell handover, the mobile management entity sends the message to the mobile switching center. of.

5. A method of returning to the Long Term Evolution network after a call, characterized in that the method includes:

After initiating a voice call request to the mobility management entity, send service request information to the base station subsystem, where the service request information includes the reason why the user equipment accesses the circuit-switched CS domain network due to CSFB fallback due to circuit domain switching;

After the voice call ends, a voice call end identifier is sent to the base station subsystem, so as to notify the base station subsystem that the user equipment has ended the call, so that the base station subsystem The system triggers sending a return instruction to the user equipment based on the fact that the user equipment accesses the circuit-switched CS domain network due to CSFB;

Receive the return instruction sent by the base station subsystem, and return to the LTE network according to the return instruction.

6. A method of returning to the Long Term Evolution network after a call, characterized in that the method includes:

Receive the service request message sent by the user equipment forwarded by the base station subsystem;

Send the reason why the user equipment falls back to CSFB to access the circuit-switched CS domain network due to circuit domain switching to the base station subsystem, so that after the user equipment ends the voice call, the base station subsystem can cause the user equipment to access the circuit switched CS domain network based on the fact that the user equipment falls back to CSFB. The reason for entering the circuit-switched CS domain network triggers sending a return instruction to the user equipment.

7. The method according to claim 6, characterized in that, before sending to the base station subsystem the reason why the user equipment accesses the circuit-switched CS domain network due to CSFB, the method further includes:

After completing the cell handover, it is received from the mobility management entity that the user equipment accesses the circuit-switched CS domain network due to CSFB.

8. A base station subsystem, characterized in that the base station subsystem includes: a system receiving unit, configured to obtain the reason why the user equipment fell back to CSFB to access the circuit-switched CS domain network due to circuit domain switching, and send the user equipment to the CS domain network. Sent to the system sending unit due to CSFB accessing the CS domain network;

The system receiving unit is also configured to receive the voice call end identification of the user equipment after the voice call ends, and send the voice call end identification to the system sending unit;

The system sending unit is configured to trigger sending a return instruction to the user equipment according to the reason that the user equipment accesses the CS domain network due to CSFB, so that the user equipment returns to the Long Term Evolution LTE network according to the return instruction.

9. The base station subsystem according to claim 8, characterized in that the base station subsystem is a Global System for Mobile Communications GSM/Enhanced Data Rate GSM Evolution technology wireless access network, or a global terrestrial wireless access network. Base station subsystem.

10. The subsystem according to claim 8, characterized in that the system receiving unit is specifically used for:

11. The subsystem according to claim 8, characterized in that the system receiving unit is specifically used for:

12. The subsystem according to claim 11, characterized in that, the reason why the user equipment accesses the circuit-switched CS domain network due to CSFB is that after completing the cell handover, the mobile management entity sends the exchange center.

13. A user equipment, characterized in that, the user equipment includes:

An equipment sending unit, configured to send service request information to the base station subsystem after initiating a voice call request to the mobility management entity, where the service request information includes the reason why the user equipment accesses the circuit-switched CS domain network due to circuit domain switching fallback to CSFB;

The device sending unit is also configured to send a voice call end identifier to the base station subsystem after the voice call ends, so as to notify the base station subsystem that the user equipment has ended the call, so that the base station subsystem can complete the call according to the The user equipment triggers sending a return instruction to the user equipment due to CSFB access to the circuit-switched CS domain network;

A device receiving unit, configured to receive a return instruction sent by the base station subsystem, and return to the LTE network according to the return instruction.

14. A mobile switching center, characterized in that the switching center includes: a center receiving unit configured to receive service request messages sent by user equipment forwarded by the base station subsystem;

The central sending unit is configured to send to the base station subsystem the reason why the user equipment falls back to CSFB to access the circuit switched CS domain network due to circuit domain switching, so that after the user equipment ends the voice call, the base station subsystem can cause the base station subsystem to The user equipment is triggered to send a return instruction to the user equipment due to CSFB accessing the circuit-switched CS domain network.

15. The switching center according to claim 14, characterized in that the center receiving unit is also used to:

Before sending the reason why the user equipment accesses the circuit-switched CS domain network due to CSFB to the base station subsystem, receiving the reason why the user equipment accesses the circuit-switched CS domain network due to CSFB from the mobility management entity.

16. A base station subsystem, characterized in that the subsystem includes:

The first receiver is used to obtain the reason why the user equipment falls back to CSFB access to the circuit switched CS domain network due to circuit domain switching;

The first receiver is also configured to receive a voice call end identification of the user equipment after the voice call ends with the user equipment;

The first transmitter is configured to trigger sending a return instruction to the user equipment according to the reason why the user equipment accesses the CS domain network, so that the user equipment returns to the Long Term Evolution LTE network according to the return instruction.

17. The base station subsystem according to claim 16, characterized in that the base station subsystem is a Global System for Mobile Communications GSM/Enhanced Data Rate GSM Evolution technology wireless access network, or a global terrestrial wireless access network. Base station subsystem.

18. The subsystem according to claim 16, characterized in that the first receiver is specifically used for:

19. The subsystem according to claim 16, characterized in that the first receiver is specifically used for:

20. The subsystem according to claim 19, characterized in that, the reason why the user equipment accesses the circuit-switched CS domain network due to CSFB is that after completing the cell handover, the mobile management entity sends the central.

21. A user equipment, characterized in that, the user equipment includes: The second transmitter is configured to send service request information to the base station subsystem after initiating a voice call request to the mobility management entity. The service request information includes the reason why the user equipment accesses the circuit-switched CS domain network due to circuit domain switching fallback to CSFB. ;

The second transmitter is also configured to send a voice call end identifier to the base station subsystem after the voice call ends, so as to notify the base station subsystem that the user equipment has ended the call, so that the base station subsystem can The user equipment triggers sending a return instruction to the user equipment due to CSFB access to the circuit-switched CS domain network;

The second receiver is used to receive the return instruction sent by the base station subsystem, and return to the LTE network according to the return instruction.

22. A mobile switching center, characterized in that the switching center includes: a third receiver, configured to receive the service request message sent by the user equipment forwarded by the base station subsystem;

The third transmitter is configured to send to the base station subsystem the reason why the user equipment falls back to CSFB to access the circuit switched CS domain network due to circuit domain switching, so that after the user equipment ends the voice call, the base station subsystem can The user equipment is triggered to send a return instruction to the user equipment due to CSFB accessing the circuit-switched CS domain network.

23. The switching center according to claim 22, characterized in that the third receiver is also used for:

Before sending the reason that the user equipment accesses the circuit-switched CS domain network due to CSFB to the base station subsystem, receiving the reason that the user equipment accesses the circuit-switched CS domain network due to CSFB from the mobility management entity.

24. A communication system, characterized in that the subsystem includes:

The base station subsystem as described in any one of claims 8 to 12, or the base station subsystem as described in any one of claims 16 to 20;

The user equipment as claimed in claim 13, or the user equipment as claimed in claim 21;

The mobile switching center as claimed in claim 14 or 15, or the mobile switching center as claimed in claim 22 or 23.