WO2017080303A1 - 一种电路域回落csfb流程处理方法和装置 - Google Patents

一种电路域回落csfb流程处理方法和装置 Download PDF

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Publication number
WO2017080303A1
WO2017080303A1 PCT/CN2016/098849 CN2016098849W WO2017080303A1 WO 2017080303 A1 WO2017080303 A1 WO 2017080303A1 CN 2016098849 W CN2016098849 W CN 2016098849W WO 2017080303 A1 WO2017080303 A1 WO 2017080303A1
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user equipment
circuit domain
indication message
idle state
domain indication
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PCT/CN2016/098849
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English (en)
French (fr)
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王晓峰
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大唐移动通信设备有限公司
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Publication of WO2017080303A1 publication Critical patent/WO2017080303A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0011Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0022Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • H04W36/00224Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB]

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  • the present application relates to the field of communications technologies, and in particular, to a circuit domain fallback CSFB process processing method and a circuit domain fallback CSFB process processing apparatus.
  • the CSFB (Circuit Switched Fallback) technology is a solution for providing voice service to users attached to an EPS (Evolved Packet System) through a 2/3G circuit domain (CS domain).
  • EPS Evolved Packet System
  • CS domain 2/3G circuit domain
  • the CSFB technology that is, the UE (User Equipment) under the LTE coverage, when processing the voice service, first falls back to the CS domain and processes the voice service in the CS domain, thereby achieving reuse of the existing CS.
  • the domain device serves the purpose of providing traditional voice services for users in the LTE network.
  • the mobile switching center/Visitor Location Register MSC/VLR mobile switching center/Visitor Location Register
  • MME Mobility Management Entity
  • the MME is required to first initiate the IMSI of the user (International Mobile Subscriber Identification Number). The user identification code) de-attach flow, and then waits for the called user to re-attach the non-evolved packet system service Non-EPS.
  • LAI Location Area Identity
  • the type of detachment needs to be determined first, and then the core network and the UE need to undergo multiple interactions to complete the detach process. If other processes occur during this process, the process concurrently needs to be considered.
  • the processing of the core network and the UE are relatively complicated.
  • waiting for the called user to reattach the Non-EPS service takes a long time, which seriously affects the normal communication of the user.
  • circuit domain fallback CSFB process processing method and a corresponding circuit domain fallback CSFB process processing apparatus that overcome the above problems or at least partially solve the above problems.
  • circuit domain fallback CSFB process processing method including:
  • the user equipment comprises: a connected state user equipment, and/or an idle state user equipment.
  • the method further includes:
  • the step of establishing a wireless link connection with the idle state user equipment comprises:
  • the step of indicating that the user equipment re-attaches the non-evolved packet system service non EPS by using the update circuit domain indication message comprises:
  • circuit domain fallback CSFB process processing apparatus including:
  • circuit domain indication message update module configured to add a circuit domain service to the original circuit domain indication message when receiving an original circuit domain indication message that does not carry the location area identifier LAI information Temporarily unreachable information, forming an update circuit domain indication message;
  • the circuit domain indication message indication module is configured to instruct the user equipment to re-attach the non-evolved packet system service non EPS using the update circuit domain indication message.
  • the user equipment comprises: a connected state user equipment, and/or an idle state user equipment.
  • the device further comprises:
  • a wireless link connection establishing module is configured to establish a wireless link connection with the idle state user equipment.
  • the wireless link connection establishing module includes:
  • a paging message sending module configured to send a paging message to the idle state user equipment
  • the service request information receiving module is configured to receive service request information of the idle state user equipment.
  • the circuit domain indication message indication module comprises:
  • Updating a circuit domain indication message sending module configured to send the update circuit domain indication message to the user equipment
  • the tracking area update TAU process startup module is configured to instruct the user equipment to initiate a tracking area update TAU procedure, so that the user equipment reattaches the non-evolved packet system service non EPS.
  • a computer readable recording medium having recorded thereon a program for executing the above method.
  • the embodiments of the present application include the following advantages:
  • the circuit domain service temporary unreachable information is added in the original circuit domain indication message that does not carry the location area identifier LAI information to form an update circuit domain indication message, and then the user equipment adopts the update circuit.
  • the domain indication message can be quickly reattached to the non-EPS service, avoiding the judgment of the detachment type during the detachment process, reducing the number of interactions between the user equipment and the core network, and speeding up the processing time of the CSFB process, thereby avoiding The delay in normal user communication.
  • FIG. 1 is a flow chart showing the steps of a first embodiment of a circuit domain fallback CSFB process in the present application
  • FIG. 3 is a flow chart showing the steps of a third embodiment of a circuit domain fallback CSFB process in the present application
  • FIG. 4 is a flow chart showing the steps of a fourth embodiment of a circuit domain fallback CSFB process in the present application
  • FIG. 5 is a structural block diagram of an embodiment of a circuit domain fallback CSFB process processing apparatus of the present application.
  • FIG. 1 a flow chart of a first embodiment of a circuit domain fallback CSFB process in the present application is shown in the following.
  • Step 101 When receiving an original circuit domain indication message that does not carry the location area identifier LAI information, adding circuit domain service temporary unreachable information to the original circuit domain indication message to form an update circuit domain indication message;
  • a reason value #39 may be added to the original circuit domain indication message to form an update circuit. Domain indication message.
  • the cause value #39 is the circuit domain service temporary unreachable information CS service temporarily not available, indicating that the circuit domain service at this time is temporarily unavailable.
  • Step 102 Instruct the user equipment to re-attach the non-evolved packet system service non EPS by using the update circuit domain indication message.
  • the network node MME may instruct the user equipment to re-attach the non-evolved packet system service non EPS by using the update circuit domain indication message. After the user equipment reattaches to the non EPS service, normal voice communication can be performed.
  • the circuit domain service temporary unreachable information is added in the original circuit domain indication message that does not carry the location area identifier LAI information, and the update circuit domain indication message is formed.
  • the user equipment uses the update circuit domain indication message, the user equipment can quickly reattach to the non-EPS service, avoiding the judgment of the detach type during the detach process, and reducing the number of interactions between the user equipment and the core network.
  • the processing time of the CSFB process is accelerated, and the delay of normal communication of the user is avoided.
  • FIG. 2 a flow chart of the steps of the second embodiment of the circuit area fallback CSFB processing method of the present application is shown, which may specifically include the following steps:
  • Step 201 When receiving an original circuit domain indication message that does not carry the location area identifier LAI information, adding circuit domain service temporary unreachable information to the original circuit domain indication message to form an update circuit domain indication message;
  • the circuit domain indication message sent by the mobile switching center MSC/VLR may not carry the location area identifier LAI.
  • the network node MME receives the original circuit domain indication message that does not carry the location area identifier LAI information. Thereafter, a cause value #39 may be added to the original circuit domain indication message to form an update circuit domain indication message.
  • the cause value #39 is the circuit domain service temporary unreachable information CS service temporarily not available, indicating that the circuit domain service at this time is temporarily unavailable.
  • Step 202 Establish a wireless link connection with an idle state user equipment.
  • the user equipment may include: a connected state user equipment, and/or an idle state user equipment.
  • a connected user equipment refers to a user equipment that has a data access bearer in the current situation, that is, a user equipment that has formed a wireless link link with the core network; the idle state user equipment is opposite to the core. User equipments with wireless link links have not been established between the networks.
  • a wireless link connection with the idle state user equipment may be first established.
  • establishing a wireless link connection with the idle state user equipment may include the following sub-steps:
  • Sub-step 2021 sending a paging message to the idle state user equipment
  • the MME may search for a paging message. Calling the idle user equipment.
  • Sub-step 2022 receiving service request information of the idle state user equipment.
  • the idle state user equipment may return the service request information Extend service request/service request to the MME, thereby establishing a radio link between the idle state user equipment and the MME.
  • Step 203 Instruct the idle state user equipment to re-attach the non-evolved packet system service non EPS by using the update circuit domain indication message.
  • the MME may indicate that the idle state user equipment adopts an update that has been added with a cause value #39, that is, a circuit domain service temporary unreachable information CS service temporarily not available.
  • the circuit domain indication message reattaches the non-evolved packet system service non EPS.
  • the indicating that the idle state user equipment re-attaches the non-evolved packet system service non EPS by using the update circuit domain indication message may include the following sub-steps:
  • Sub-step 2031 sending the update circuit domain indication message to the idle state user equipment
  • the MME may send an update circuit domain indication message to the idle state user equipment.
  • the update circuit sent by the MME may include information rejecting the service request of the idle state user equipment, and sub-step 2032 is performed instead.
  • Sub-step 2032 instructing the idle state user equipment to initiate a tracking area update TAU procedure, so that the idle state user equipment reattaches the non-evolved packet system service non EPS.
  • the idle state user equipment may start the tracking area update TAU process according to the indication of the update circuit domain indication message, so that the user equipment reattaches the non-evolved packet system.
  • Service non EPS Service non EPS.
  • the LTE network is required to overlap with the network to be dropped.
  • there may be a call service initiated in the process of continuous movement so it is necessary to perform joint TAU update on its tracking area.
  • the information of the user equipment is registered in the tracking area. After the user equipment completes the tracking area update TAU process, the non-evolved packet system service non EPS can be reattached.
  • the user equipment called by the mobile switching center when the user equipment called by the mobile switching center is an idle state user equipment, by first establishing a wireless link link with the idle state user equipment, and then carrying the location area identifier LAI information
  • the circuit domain service temporary unreachable information is added to the original circuit domain indication message to form an update circuit domain indication message, and then the user equipment uses the update circuit domain indication message to start the tracking area update TAU process, so that the user equipment can quickly reattach to the message.
  • the non-EPS service avoids the impact on the normal communication of users due to the long processing time of re-attaching non-EPS services.
  • FIG. 3 a flow chart of the steps in the third embodiment of the circuit area fallback CSFB process of the present application is shown in the following steps.
  • Step 301 When receiving an original circuit domain indication message that does not carry the location area identifier LAI information, adding circuit domain service temporary unreachable information to the original circuit domain indication message to form an update circuit domain indication message;
  • the step 301 in this embodiment is similar to the step 201 in the second embodiment, and is not described in this embodiment.
  • Step 302 Send the update circuit domain indication message to the connected mode user equipment.
  • the network node MME can directly The update circuit domain indication message with the cause value #39 is sent to the connected state user equipment, and the connected state user equipment is notified that the current circuit domain service is unavailable and needs to be reattached to the non-evolved packet system service non EPS.
  • Step 303 Instruct the connected mode user equipment to start a tracking area update TAU procedure, so that the connected state user equipment reattaches the non-evolved packet system service non EPS.
  • the connected mode user equipment may start the tracking area update TAU process according to the indication of the update circuit domain indication message, so that the user equipment reattaches the non-evolved packet system.
  • Service non EPS Service non EPS.
  • the circuit domain service temporary unreachable information is added to the original circuit domain indication message that does not carry the location area identifier LAI information to form an update.
  • the circuit domain indication message directly sends the update circuit domain indication message to the connected mode user equipment, so that the connected state user equipment quickly attaches to the non EPS service after starting the tracking area update TAU process, thereby avoiding reattachment The process of the non EPS service takes too long to affect the normal communication of the user.
  • FIG. 4 a flow chart of the steps in the fourth embodiment of the CSFB flow processing method of the circuit domain is shown in the following.
  • Step 401 Determine whether the received original circuit domain indication message carries the location area identifier LAI information, and if not, add the circuit domain service temporary unreachable information in the original circuit domain indication message to form an update circuit domain indication message;
  • the circuit domain indication message sent by the mobile switching center MSC/VLR may not carry the location area identifier LAI.
  • the network node MME may first determine the received original.
  • the circuit domain indication message carries the location area identifier LAI information. If the LAI information is not carried, a cause value #39 may be added to the original circuit domain indication message to form an update circuit domain indication message.
  • the cause value #39 is the circuit domain service temporary unreachable information CS service temporarily not available, indicating that the circuit domain service at this time is temporarily unavailable.
  • Step 402 determining the user equipment type, if the user equipment is a connected state user equipment, step 404 is performed; if the user equipment is an idle state user equipment, step 403 is performed;
  • the MME may first determine whether the paged user equipment has established a radio link with the MME. If the user equipment is a connected user equipment, step 404 may be performed to send the update circuit domain indication message to the user equipment; if the user equipment is an idle state user equipment, step 403 may be performed to establish A wireless link connection with the idle state user equipment.
  • Step 403 Establish a wireless link connection with the idle state user equipment.
  • the step 403 in this embodiment is similar to the step 202 in the second embodiment, and is not described in this embodiment.
  • Step 404 Send the update circuit domain indication message to the user equipment.
  • the MME may directly send the update circuit domain indication message to the connected state user equipment.
  • the circuit domain indication message may further include information for rejecting the service request of the idle state user equipment, and then step 405 is performed.
  • Step 405 Instruct the user equipment to initiate a tracking area update TAU procedure, so that the user equipment reattaches the non-evolved packet system service non EPS.
  • the user equipment may start the tracking area update TAU process according to the indication of the update circuit domain indication message, so that the user equipment reattaches the non-evolved packet system service non EPS.
  • the update circuit domain indication message is sent to the user equipment, indicating that the user equipment re-attaches the non-evolved packet system service non-EPS, reducing the number of interactions between the user equipment and the core network, speeding up the processing time of the CSFB process, and avoiding the normal operation of the user. Communication Delay.
  • FIG. 5 a structural block diagram of an embodiment of a circuit domain fallback CSFB process processing apparatus of the present application is shown, which may specifically include the following modules:
  • the circuit domain indication message update module 501 is configured to add a circuit domain service temporary unreachable information to the original circuit domain indication message to form an update circuit when receiving the original circuit domain indication message that does not carry the location area identifier LAI information. Domain indication message;
  • the circuit domain indication message indication module 502 is configured to instruct the user equipment to reattach the non-evolved packet system service non EPS using the update circuit domain indication message.
  • the user equipment may include: a connected state user equipment, and/or an idle state user equipment.
  • the apparatus may further include the following modules:
  • the wireless link connection establishing module 503 is configured to establish a wireless link connection with the idle state user equipment.
  • the wireless link connection establishing module 503 may specifically include the following modules:
  • the paging message sending module 5031 is configured to send a paging message to the idle state user equipment
  • the service request information receiving module 5032 is configured to receive service request information of the idle state user equipment.
  • circuit domain indication message indication module 502 may specifically include the following modules:
  • An update circuit domain indication message sending module 5021 configured to display the update circuit domain indication message Sent to the user equipment;
  • the tracking area update TAU process startup module 5022 is configured to instruct the user equipment to initiate a tracking area update TAU procedure, so that the user equipment reattaches the non-evolved packet system service non EPS.
  • the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.
  • the embodiment of the present application also discloses a computer readable recording medium on which a program for executing the above method is recorded.
  • the computer readable recording medium includes any mechanism for storing or transmitting information in a form readable by a computer (eg, a computer).
  • a machine-readable medium includes read only memory (ROM), random access memory (RAM), magnetic disk storage media, optical storage.
  • embodiments of the embodiments of the present application can be provided as a method, apparatus, or computer program product. Therefore, the embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Moreover, embodiments of the present application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • Embodiments of the present application are described with reference to flowcharts and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing terminal device to produce a machine such that instructions are executed by a processor of a computer or other programmable data processing terminal device Generate a box for implementing a process or multiple processes and/or block diagrams in a flowchart or A device that has multiple functions specified in the box.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing terminal device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the instruction device implements the functions specified in one or more blocks of the flowchart or in a flow or block of the flowchart.

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Abstract

一种电路域回落CSFB流程处理方法和装置,所述方法包括:当接收到未携带位置区识别码LAI信息的原始电路域指示消息时,在所述原始电路域指示消息中添加电路域服务临时不可达信息,形成更新电路域指示消息;指示用户设备采用所述更新电路域指示消息重新附着非演进分组系统服务non EPS,使得用户设备能够快速的重新附着到non EPS服务,避免了去附着过程中对去附着类型的判断,减少了用户设备和核心网之间的交互次数,加快了CSFB流程的处理时间,避免了用户正常通信的延迟。

Description

一种电路域回落CSFB流程处理方法和装置 技术领域
本申请涉及通信技术领域,特别是涉及一种电路域回落CSFB流程处理方法和一种电路域回落CSFB流程处理装置。
背景技术
CSFB(Circuit Switched Fallback,电路域回落)技术是通过2/3G的电路域(CS域)为附着在EPS(Evolved Packet System,演进分组系统)的用户提供语音业务服务的一种解决方案。在LTE网络建设初期,出于对CS投资的保护,结合LTE网络的部署策略,运营商可以采用原有的CS域语音方案来提供语音服务,而LTE网络仅处理数据业务。这种情况下,采用CSFB技术,即LTE覆盖下的UE(User Equipment,用户设备)在处理语音业务时,先回退到CS域,在CS域处理语音业务,就达到了重用现有的CS域设备来为LTE网络中的用户提供传统的语音业务的目的。
在目前的CSFB方案中,对于语音呼叫的被叫用户,移动交换中心MSC/VLR(mobile switching center/Visitor Location Register)通过SGS接口的寻呼消息来触发网络节点MME(Mobility Management Entity),通知UE进行CSFB流程。但是,在某些情况下,由于MSC/VLR发送的电路域指示消息可能并未携带位置区识别码LAI(Location Area Identity),则需要MME首先发起该用户的IMSI(International Mobile SubscriberIdentification Number,国际移动用户识别码)去附着流程,然后,等待被叫用户重新附着非演进分组系统服务Non-EPS。
在IMSI的去附着流程中,首先需要判断去附着的类型,然后核心网和UE需要经过多次交互才能完成去附着流程,如果在此过程中,还有其他流程发生,还需要考虑流程的并发,核心网和UE的处理过程都相对复杂。此外,等待被叫用户重新附着Non-EPS服务的时间也比较长,严重影响了用户的正常通信。
发明内容
鉴于上述问题,提出了本申请实施例以便提供一种克服上述问题或者至少部分地解决上述问题的一种电路域回落CSFB流程处理方法和相应的一种电路域回落CSFB流程处理装置。
为了解决上述问题,本申请实施例公开了一种电路域回落CSFB流程处理方法,包括:
当接收到未携带位置区识别码LAI信息的原始电路域指示消息时,在所述原始电路域指示消息中添加电路域服务临时不可达信息,形成更新电路域指示消息;
指示用户设备采用所述更新电路域指示消息重新附着非演进分组系统服务non EPS。
优选地,所述用户设备包括:连接态用户设备,和/或,空闲态用户设备。
优选地,当所述用户设备为空闲态用户设备时,在接收到未携带位置区识别码LAI信息的原始电路域指示消息后,还包括:
建立与所述空闲态用户设备间的无线链路连接。
优选地,所述建立与所述空闲态用户设备间的无线链路连接的步骤包括:
发送寻呼消息至所述空闲态用户设备;
接收所述空闲态用户设备的服务请求信息。
优选地,所述指示用户设备采用所述更新电路域指示消息重新附着非演进分组系统服务non EPS的步骤包括:
将所述更新电路域指示消息发送至所述用户设备;
指示所述用户设备启动跟踪区更新TAU流程,以使所述用户设备重新附着非演进分组系统服务non EPS。
为了解决上述问题,本申请实施例还公开了一种电路域回落CSFB流程处理装置,包括:
电路域指示消息更新模块,设置为在接收到未携带位置区识别码LAI信息的原始电路域指示消息时,在所述原始电路域指示消息中添加电路域服 务临时不可达信息,形成更新电路域指示消息;
电路域指示消息指示模块,设置为指示用户设备采用所述更新电路域指示消息重新附着非演进分组系统服务non EPS。
优选地,所述用户设备包括:连接态用户设备,和/或,空闲态用户设备。
优选地,所述装置还包括:
无线链路连接建立模块,设置为建立与所述空闲态用户设备间的无线链路连接。
优选地,所述无线链路连接建立模块包括:
寻呼消息发送模块,设置为发送寻呼消息至所述空闲态用户设备;
服务请求信息接收模块,设置为接收所述空闲态用户设备的服务请求信息。
优选地,所述电路域指示消息指示模块包括:
更新电路域指示消息发送模块,设置为将所述更新电路域指示消息发送至所述用户设备;
跟踪区更新TAU流程启动模块,设置为指示所述用户设备启动跟踪区更新TAU流程,以使所述用户设备重新附着非演进分组系统服务non EPS。
一种在其上记录有用于执行上述方法的程序的计算机可读记录介质。
与背景技术相比,本申请实施例包括以下优点:
在本申请实施例中,通过在未携带位置区识别码LAI信息的原始电路域指示消息中添加电路域服务临时不可达信息,形成更新电路域指示消息,然后,用户设备通过采用所述更新电路域指示消息,能够快速的重新附着到non EPS服务,避免了去附着过程中对去附着类型的判断,减少了用户设备和核心网之间的交互次数,加快了CSFB流程的处理时间,避免了用户正常通信的延迟。
附图说明
图1是本申请的一种电路域回落CSFB流程处理方法实施例一的步骤流程图;
图2是本申请的一种电路域回落CSFB流程处理方法实施例二的步骤流 程图;
图3是本申请的一种电路域回落CSFB流程处理方法实施例三的步骤流程图;
图4是本申请的一种电路域回落CSFB流程处理方法实施例四的步骤流程图;
图5是本申请的一种电路域回落CSFB流程处理装置实施例的结构框图。
具体实施方式
为使本申请的上述目的、特征和优点能够更加明显易懂,下面结合附图和具体实施方式对本申请作进一步详细的说明。
参照图1,示出了本申请的一种电路域回落CSFB流程处理方法实施例一的步骤流程图,具体可以包括如下步骤:
步骤101,当接收到未携带位置区识别码LAI信息的原始电路域指示消息时,在所述原始电路域指示消息中添加电路域服务临时不可达信息,形成更新电路域指示消息;
在本申请实施例中,当网络节点MME接收到未携带位置区识别码LAI信息的原始电路域指示消息时,可以在所述原始电路域指示消息中添加一个原因值#39,从而形成更新电路域指示消息。该原因值#39即为电路域服务临时不可达信息CS service temporarily not available,表示此时的电路域服务临时不可用。
步骤102,指示用户设备采用所述更新电路域指示消息重新附着非演进分组系统服务non EPS。
在本申请实施例中,针对所述更新电路域指示消息,网络节点MME可以指示用户设备采用所述更新电路域指示消息重新附着非演进分组系统服务non EPS。当用户设备重新附着到non EPS服务后,可以进行正常的语音通信。
在本申请实施例中,通过在未携带位置区识别码LAI信息的原始电路域指示消息中添加电路域服务临时不可达信息,形成更新电路域指示消息,然 后,用户设备通过采用所述更新电路域指示消息,能够快速的重新附着到non EPS服务,避免了去附着过程中对去附着类型的判断,减少了用户设备和核心网之间的交互次数,加快了CSFB流程的处理时间,避免了用户正常通信的延迟。
参照图2,示出了本申请的一种电路域回落CSFB流程处理方法实施例二的步骤流程图,具体可以包括如下步骤:
步骤201,当接收到未携带位置区识别码LAI信息的原始电路域指示消息时,在所述原始电路域指示消息中添加电路域服务临时不可达信息,形成更新电路域指示消息;
在具体实现中,移动交换中心MSC/VLR发送的电路域指示消息可能并未携带位置区识别码LAI,此时,网络节点MME在接收到未携带位置区识别码LAI信息的原始电路域指示消息后,可以在所述原始电路域指示消息中添加一个原因值#39,从而形成更新电路域指示消息。该原因值#39即为电路域服务临时不可达信息CS service temporarily not available,表示此时的电路域服务临时不可用。
步骤202,建立与空闲态用户设备间的无线链路连接;
在本申请实施例中,所述用户设备可以包括:连接态用户设备,和/或,空闲态用户设备。
连接态用户设备是指在当前情况下,有数据接入承载的用户设备,即,与核心网之间已经形成无线链路链接的用户设备;空闲态用户设备则与之相反,是指与核心网之间还未建立无线链路链接的用户设备。
因此,在本申请的一种实施例中,当移动交换中心MSC/VLR寻呼的用户设备是空闲态用户设备时,首先可以建立与所述空闲态用户设备间的无线链路连接。
在具体实现中,建立与所述空闲态用户设备间的无线链路连接可以包括如下子步骤:
子步骤2021,发送寻呼消息至所述空闲态用户设备;
当移动交换中心MSC/VLR通过网络节点MME寻呼的用户设备是空闲态用户设备时,为了建立与所述空闲态用户设备间的无线链路连接,MME可以通过发送寻呼消息的方式来寻呼所述空闲态用户设备。
子步骤2022,接收所述空闲态用户设备的服务请求信息。
在收到MME发送的寻呼消息后,所述空闲态用户设备可以向MME返回服务请求信息Extend service request/service request,从而建立起空闲态用户设备与MME之间的无线链路链接。
步骤203,指示所述空闲态用户设备采用所述更新电路域指示消息重新附着非演进分组系统服务non EPS。
在与空闲态用户设备建立起无线链路链接后,MME可以指示所述空闲态用户设备采用已添加有原因值#39,即已添加有电路域服务临时不可达信息CS service temporarily not available的更新电路域指示消息重新附着非演进分组系统服务non EPS。
在本申请的一种优选实施例中,所述指示所述空闲态用户设备采用所述更新电路域指示消息重新附着非演进分组系统服务non EPS可以包括如下子步骤:
子步骤2031,将所述更新电路域指示消息发送至所述空闲态用户设备;
在与空闲态用户设备建立起无线链路链接后,MME可以将更新电路域指示消息发送至所述空闲态用户设备。
在具体实现中,对于空闲态用户设备而言,由于所述空闲态用户设备向MME返回了服务请求信息Extend service request/service request,但此时,因为电路域服务不可用,MME发送的更新电路域指示消息中可以包括拒绝所述空闲态用户设备的服务请求的信息,转而执行子步骤2032。
子步骤2032,指示所述空闲态用户设备启动跟踪区更新TAU流程,以使所述空闲态用户设备重新附着非演进分组系统服务non EPS。
所述空闲态用户设备在收到MME发送的更新电路域指示消息后,根据所述更新电路域指示消息的指示,可以启动跟踪区更新TAU流程,以使所述用户设备重新附着非演进分组系统服务non EPS。
在CSFB的移动性管理过程中,要求LTE网络与要回落的网络重叠覆盖,此时有可能是在不断移动的过程中发起的呼叫业务,因此必须对其跟踪区进行联合TAU更新,在新的跟踪区中注册该用户设备的信息。当用户设备完成所述跟踪区更新TAU流程后,便可以重新附着非演进分组系统服务non EPS。
当所述空闲态用户设备重新附着到non EPS服务后,可以进行正常的语音通信。
在本申请实施例中,当移动交换中心呼叫的用户设备为空闲态用户设备时,通过首先建立与所述空闲态用户设备间的无线链路链接,然后在未携带位置区识别码LAI信息的原始电路域指示消息中添加电路域服务临时不可达信息,形成更新电路域指示消息,进而由用户设备采用所述更新电路域指示消息启动跟踪区更新TAU流程,使用户设备能够快速的重新附着到non EPS服务,避免了因重新附着non EPS服务的流程处理时间过长而对用户正常通信造成的影响。
参照图3,示出了本申请的一种电路域回落CSFB流程处理方法实施例三的步骤流程图,具体可以包括如下步骤:
步骤301,当接收到未携带位置区识别码LAI信息的原始电路域指示消息时,在所述原始电路域指示消息中添加电路域服务临时不可达信息,形成更新电路域指示消息;
由于本实施例中步骤301与实施例二中步骤201类似,本实施例对此不再赘述。
步骤302,将所述更新电路域指示消息发送至连接态用户设备;
在具体实现中,当移动交换中心MSC/VLR寻呼的用户设备是连接态用户设备时,表明被寻呼的用户设备此时与核心网之间已经存在无线链路连接,网络节点MME可以直接将添加有原因值#39的更新电路域指示消息发送至连接态用户设备,通知所述连接态用户设备,当前电路域服务不可用,需要重新附着到非演进分组系统服务non EPS。
步骤303,指示所述连接态用户设备启动跟踪区更新TAU流程,以使所述连接态用户设备重新附着非演进分组系统服务non EPS。
所述连接态用户设备在收到MME发送的更新电路域指示消息后,根据所述更新电路域指示消息的指示,可以启动跟踪区更新TAU流程,以使所述用户设备重新附着非演进分组系统服务non EPS。
当所述连接态用户设备重新附着到non EPS服务后,可以进行正常的语音通信。
在本申请实施例中,当移动交换中心呼叫的用户设备为连接态用户设备时,通过在未携带位置区识别码LAI信息的原始电路域指示消息中添加电路域服务临时不可达信息,形成更新电路域指示消息,直接将所述更新电路域指示消息发送至所述连接态用户设备,使所述连接态用户设备在启动跟踪区更新TAU流程后快速附着到non EPS服务,避免了因重新附着non EPS服务的流程处理时间过长而对用户正常通信造成的影响。
参照图4,示出了本申请的一种电路域回落CSFB流程处理方法实施例四的步骤流程图,具体可以包括如下步骤:
步骤401,判断接收到的原始电路域指示消息是否携带位置区识别码LAI信息,若否,则在所述原始电路域指示消息中添加电路域服务临时不可达信息,形成更新电路域指示消息;
在具体实现中,移动交换中心MSC/VLR发送的电路域指示消息可能并未携带位置区识别码LAI,此时,网络节点MME在接收到原始电路域指示消息后,可以首先判断接收到的原始电路域指示消息是否携带位置区识别码LAI信息,如果未携带LAI信息,则可以在所述原始电路域指示消息中添加一个原因值#39,从而形成更新电路域指示消息。该原因值#39即为电路域服务临时不可达信息CS service temporarily not available,表示此时的电路域服务临时不可用。
步骤402,判断用户设备类型,若所述用户设备为连接态用户设备,则执行步骤404;若所述用户设备为空闲态用户设备,则执行步骤403;
在本申请实施例中,MME在接收到移动交换中心MSC/VLR发送的寻呼用户设备的消息后,可以首选判断被寻呼的用户设备是否已与MME建立无线链路链接。若所述用户设备为连接态用户设备,则可以执行步骤404,将所述更新电路域指示消息发送至所述用户设备;若所述用户设备为空闲态用户设备,则可以执行步骤403,建立与所述空闲态用户设备间的无线链路连接。
步骤403,建立与所述空闲态用户设备间的无线链路连接;
由于本实施例中步骤403与实施例二中步骤202类似,本实施例对此不再赘述。
步骤404,将所述更新电路域指示消息发送至所述用户设备;
对于连接态用户设备而言,MME可以直接将所述更新电路域指示消息发送至所述连接态用户设备。
对于空闲态用户设备而言,由于所述空闲态用户设备在与MME建立无线链路链接时返回了服务请求信息Extend service request/service request,但此时的电路域服务不可用,MME发送的更新电路域指示消息中还可以包括拒绝所述空闲态用户设备的服务请求的信息,转而执行步骤405。
步骤405,指示所述用户设备启动跟踪区更新TAU流程,以使所述用户设备重新附着非演进分组系统服务non EPS。
所述用户设备在收到MME发送的更新电路域指示消息后,根据所述更新电路域指示消息的指示,可以启动跟踪区更新TAU流程,以使所述用户设备重新附着非演进分组系统服务non EPS。
当所述空闲态用户设备重新附着到non EPS服务后,可以进行正常的语音通信。
在本申请实施例中,首先通过判断接收到的原始电路域指示消息是否携带位置区识别码LAI信息,以及判断是否已与被寻呼的用户设备建立无线链路链接,然后根据相应的结果将更新电路域指示消息发送至用户设备,指示所述用户设备重新附着非演进分组系统服务non EPS,减少了用户设备和核心网之间的交互次数,加快了CSFB流程的处理时间,避免了用户正常通信 的延迟。
需要说明的是,对于方法实施例,为了简单描述,故将其都表述为一系列的动作组合,但是本领域技术人员应该知悉,本申请实施例并不受所描述的动作顺序的限制,因为依据本申请实施例,某些步骤可以采用其他顺序或者同时进行。其次,本领域技术人员也应该知悉,说明书中所描述的实施例均属于优选实施例,所涉及的动作并不一定是本申请实施例所必须的。
参照图5,示出了本申请的一种电路域回落CSFB流程处理装置实施例的结构框图,具体可以包括如下模块:
电路域指示消息更新模块501,设置为在接收到未携带位置区识别码LAI信息的原始电路域指示消息时,在所述原始电路域指示消息中添加电路域服务临时不可达信息,形成更新电路域指示消息;
电路域指示消息指示模块502,设置为指示用户设备采用所述更新电路域指示消息重新附着非演进分组系统服务non EPS。
在本申请实施例中,所述用户设备可以包括:连接态用户设备,和/或,空闲态用户设备。
在本申请的一种优选实施例中,所述装置还可以包括如下模块:
无线链路连接建立模块503,设置为建立与所述空闲态用户设备间的无线链路连接。
在本申请实施例中,所述无线链路连接建立模块503具体可以包括如下模块:
寻呼消息发送模块5031,设置为发送寻呼消息至所述空闲态用户设备;
服务请求信息接收模块5032,设置为接收所述空闲态用户设备的服务请求信息。
在本申请实施例中,所述电路域指示消息指示模块502具体可以包括如下模块:
更新电路域指示消息发送模块5021,设置为将所述更新电路域指示消息 发送至所述用户设备;
跟踪区更新TAU流程启动模块5022,设置为指示所述用户设备启动跟踪区更新TAU流程,以使所述用户设备重新附着非演进分组系统服务non EPS。
对于装置实施例而言,由于其与方法实施例基本相似,所以描述的比较简单,相关之处参见方法实施例的部分说明即可。
本申请实施例还公开了一种在其上记录有用于执行上述方法的程序的计算机可读记录介质。
所述计算机可读记录介质包括用于以计算机(例如计算机)可读的形式存储或传送信息的任何机制。例如,机器可读介质包括只读存储器(ROM)、随机存取存储器(RAM)、磁盘存储介质、光存储。
本说明书中的各个实施例均采用递进的方式描述,每个实施例重点说明的都是与其他实施例的不同之处,各个实施例之间相同相似的部分互相参见即可。
本领域内的技术人员应明白,本申请实施例的实施例可提供为方法、装置、或计算机程序产品。因此,本申请实施例可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请实施例是参照根据本申请实施例的方法、终端设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理终端设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理终端设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或 多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理终端设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理终端设备上,使得在计算机或其他可编程终端设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程终端设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本申请实施例的优选实施例,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例做出另外的变更和修改。所以,所附权利要求意欲解释为包括优选实施例以及落入本申请实施例范围的所有变更和修改。
最后,还需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者终端设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者终端设备所固有的要素。在没有更多限制的情况下,由语句“包括一个......”限定的要素,并不排除在包括所述要素的过程、方法、物品或者终端设备中还存在另外的相同要素。以上对本申请所提供的一种电路域回落CSFB流程处理方法和一种电路域回落CSFB流程处理装置,进行了详细介绍,本文中应用了具体个例对本申请的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本申请的方法及其核心思想;同时,对于本领域的一般技术人员,依据本申请的思想,在具体实施方式及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本申请的限制。

Claims (11)

  1. 一种电路域回落CSFB流程处理方法,其特征在于,包括:
    当接收到未携带位置区识别码LAI信息的原始电路域指示消息时,在所述原始电路域指示消息中添加电路域服务临时不可达信息,形成更新电路域指示消息;
    指示用户设备采用所述更新电路域指示消息重新附着非演进分组系统服务non EPS。
  2. 根据权利要求1所述的方法,其特征在于,所述用户设备包括:连接态用户设备,和/或,空闲态用户设备。
  3. 根据权利要求2所述的方法,其特征在于,当所述用户设备为空闲态用户设备时,在接收到未携带位置区识别码LAI信息的原始电路域指示消息后,还包括:
    建立与所述空闲态用户设备间的无线链路连接。
  4. 根据权利要求3所述的方法,其特征在于,所述建立与所述空闲态用户设备间的无线链路连接的步骤包括:
    发送寻呼消息至所述空闲态用户设备;
    接收所述空闲态用户设备的服务请求信息。
  5. 根据权利要求1或4所述的方法,其特征在于,所述指示用户设备采用所述更新电路域指示消息重新附着非演进分组系统服务non EPS的步骤包括:
    将所述更新电路域指示消息发送至所述用户设备;
    指示所述用户设备启动跟踪区更新TAU流程,以使所述用户设备重新附着非演进分组系统服务non EPS。
  6. 一种电路域回落CSFB流程处理装置,其特征在于,包括:
    电路域指示消息更新模块,设置为在接收到未携带位置区识别码LAI信息的原始电路域指示消息时,在所述原始电路域指示消息中添加电路域服务临时不可达信息,形成更新电路域指示消息;
    电路域指示消息指示模块,设置为指示用户设备采用所述更新电路域指 示消息重新附着非演进分组系统服务non EPS。
  7. 根据权利要求6所述的装置,其特征在于,所述用户设备包括:连接态用户设备,和/或,空闲态用户设备。
  8. 根据权利要求7所述的装置,其特征在于,所述装置还包括:
    无线链路连接建立模块,设置为建立与所述空闲态用户设备间的无线链路连接。
  9. 根据权利要求8所述的装置,其特征在于,所述无线链路连接建立模块包括:
    寻呼消息发送模块,设置为发送寻呼消息至所述空闲态用户设备;
    服务请求信息接收模块,设置为接收所述空闲态用户设备的服务请求信息。
  10. 根据权利要求6或9所述的装置,其特征在于,所述电路域指示消息指示模块包括:
    更新电路域指示消息发送模块,设置为将所述更新电路域指示消息发送至所述用户设备;
    跟踪区更新TAU流程启动模块,设置为指示所述用户设备启动跟踪区更新TAU流程,以使所述用户设备重新附着非演进分组系统服务non EPS。
  11. 一种在其上记录有用于执行权利要求1所述方法的程序的计算机可读记录介质。
PCT/CN2016/098849 2015-11-12 2016-09-13 一种电路域回落csfb流程处理方法和装置 WO2017080303A1 (zh)

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