WO2017156917A1 - 一种VoLTE业务的处理方法、处理装置及终端 - Google Patents

一种VoLTE业务的处理方法、处理装置及终端 Download PDF

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Publication number
WO2017156917A1
WO2017156917A1 PCT/CN2016/087600 CN2016087600W WO2017156917A1 WO 2017156917 A1 WO2017156917 A1 WO 2017156917A1 CN 2016087600 W CN2016087600 W CN 2016087600W WO 2017156917 A1 WO2017156917 A1 WO 2017156917A1
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network
rrc connection
network side
signal strength
measurement result
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PCT/CN2016/087600
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English (en)
French (fr)
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刘建峰
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宇龙计算机通信科技(深圳)有限公司
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Publication of WO2017156917A1 publication Critical patent/WO2017156917A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method, a processing device, and a terminal for processing a VoLTE service.
  • the existing VoLTE (IP Multimedia Subsystem (IP Multimedia Subsystem)-based voice service) technology solution when the terminal performs the VoLTE voice service on the LTE (Long Term Evolution) network, the terminal periodically reports the current station.
  • the signal strength of the reserved LTE serving cell to the network side the network evaluates whether the call needs to be switched to the CS domain (ie, the circuit switched domain) according to the measurement quality of the serving cell reported by the terminal, and if it needs to switch to the CS domain, the SRVCC (Single) is triggered.
  • the CS domain ie, the circuit switched domain
  • Radio Voice Call Continuity which is a process in which a single wireless mode terminal switches from a LTE network to a 2G/3G CS network, and the voice call maintains service continuity), so that the voice call is from the E-UTRAN (Evolved UMTS Terrestrial Radio Access Network, The evolved UMTS terrestrial radio access network) is transferred to the 3GPP UTRAN/GERAN network, ie the session is switched from VoLTE to normal CS voice service to maintain the continuity of the call.
  • E-UTRAN Evolved UMTS Terrestrial Radio Access Network
  • the network configuration in many places is still not perfect.
  • the VoLTE service does not promptly switch to the CS domain through the SRVCC and causes the call drop.
  • the embodiment of the present invention provides a method, a processing device, and a terminal for processing a VoLTE service, and can prevent abnormal call drop of the VoLTE service on the premise that the network configuration is imperfect.
  • a first aspect of the present invention provides a method for processing a VoLTE service, including:
  • the signal strength of the LTE network of the current serving cell is measured; if the measurement result satisfies the measurement reporting condition, it is detected whether there is an RRC connection with the network side; if there is no RRC connection with the network side, then The network side sends an RRC connection request message, and establishes an RRC connection with the network side; and sends the measurement result to the network side by using the RRC connection, The measurement result is used to indicate that the network side triggers an SRVCC process.
  • the method before the measuring the signal strength of the LTE network of the current serving cell, the method further includes: monitoring whether an RRC connection release message sent by the network side is received; if the RRC connection release message is received, releasing RRC connection.
  • the method further includes: receiving an SRVCC command sent by the network side; and switching the current camping network from the first network according to the SRVCC command. And to the second network; wherein the first network is an LTE network, and the second network is a non-LTE network.
  • the non-LTE network comprises a second generation mobile communication network or a third generation mobile communication network.
  • the measurement reporting condition includes that the signal strength of the current server cell is less than a preset signal strength threshold.
  • the second aspect of the present invention provides a processing apparatus for a VoLTE service, including:
  • a signal strength measuring module configured to measure a signal strength of an LTE network of a current serving cell during a VoLTE service call, and a detecting module, configured to detect whether an RRC connection exists between the current network side and the network side if the measurement result satisfies the measurement reporting condition; And a module, configured to send an RRC connection request message to the network side to establish an RRC connection with the network side, and a sending module, configured to use the RRC connection to the network side And transmitting the measurement result, where the measurement result is used to indicate that the network side triggers an SRVCC process.
  • the device further includes:
  • the monitoring module is configured to monitor whether the RRC connection release message sent by the network side is received, and the connection control module is configured to release the RRC connection if the RRC connection release message is received.
  • the device further includes:
  • a receiving module configured to receive an SRVCC command sent by the network side, where the processing module is configured to switch the current camping network from the first network to the second network according to the SRVCC command, where the first network is an LTE The network, the second network is a non-LTE network.
  • the measurement reporting condition includes that the signal strength of the current server cell is less than a preset signal strength threshold.
  • a third aspect of the present invention provides a terminal comprising some or all of the processing means of the second aspect.
  • the terminal continuously measures the signal strength of the LTE network of the current serving cell. If the measurement result satisfies the measurement reporting condition, the terminal actively sends an RRC connection request, establishes an RRC connection path with the network side, and reports the current cell signal measurement. As a result, the SRVCC process on the network side is triggered to enable the voice service to continue with the normal CS voice service, which solves the problem that the VoLTE service fails to switch to the CS domain through the SRVCC in time, thereby causing the call drop, thereby improving the call success rate.
  • FIG. 1 is a schematic flowchart of a method for processing a VoLTE service according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of another method for processing a VoLTE service according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a processing apparatus for a VoLTE service according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • the terminal in the embodiment of the present invention refers to a terminal that can support both the LTE network service and the second generation mobile communication network (2G, 2nd generation) or the third generation mobile communication network (3G, 3nd generation).
  • the terminal includes communication electronic devices such as a personal computer, a tablet computer or a smart phone.
  • the network side determines that the terminal is not synchronized with the normal LTE PS service and the VoLTE dedicated service. If there is no service on the LTE, the RRC connection release message is sent, indicating that the terminal enters the IDLE state (ie, the idle state). Although the terminal is still performing the VoLTE dedicated service, the terminal cannot report the cell signal because the RRC connection is released. As a result of the measurement, when the terminal moves to an area with a poor signal, the network side cannot know that the LTE cell signal of the area where the terminal is located is insufficient to support the VoLTE service.
  • the network side does not trigger the SRVCC process of the terminal, which causes the VoLTE service to be dropped.
  • the present application proposes an improved VoLTE service processing method, which can avoid abnormal call drop of the VoLTE service on the premise that the network configuration is not perfect, and is described in detail below with reference to the embodiments corresponding to FIG. 1 to FIG. .
  • FIG. 1 is a schematic flowchart of a method for processing a VoLTE service according to an embodiment of the present invention. As shown in FIG. 1, the method includes:
  • S110 Measure a signal strength of an LTE network of a current serving cell during a VoLTE service call.
  • the terminal may register the LTE network and the IMS service when the system is initialized (such as booting).
  • the terminal continuously measures the signal strength of the LTE network of the current serving cell. If the measurement result satisfies the measurement reporting condition, step S120 is performed. It is to be noted that the call connection between the terminal and the network side to establish the VoLTE service is the prior art. For details, refer to the related description, and details are not described herein.
  • the terminal may further monitor whether the RRC connection release message sent by the network side is received, and if the RRC connection release message is received, release the RRC connection, and notify The network side RRC connection is successfully released.
  • the measurement reporting condition includes that the signal strength of the current server cell is less than a preset signal strength threshold.
  • the terminal may use Scur to indicate the signal strength of the LTE network of the current serving cell, and Svolte to indicate the signal strength threshold of the VoLTE service. When the Scur is smaller than the Svolte, the terminal may determine that the measurement result satisfies the measurement reporting condition.
  • the measurement result is sent to the network side by using the RRC connection, where the measurement result is used to indicate that the network side triggers an SRVCC process.
  • the SRVCC process that is, the voice call maintains service continuity when the single wireless mode terminal switches from the LTE network to the 2G/3G CS network.
  • the network side triggers the SRVCC process, and sends an SRVCC command to the terminal. After receiving the SRVCC command, the terminal switches the current camping network from the first network to the second network.
  • the first network is an LTE network
  • the second network is a non-LTE network.
  • the non-LTE network includes a second generation mobile communication network or a third generation mobile communication network.
  • the terminal reserves the CS path resource in the second network (such as the GSM network or the UTRAN network). After the terminal switches from the first network to the second network, the terminal may reserve through the network side.
  • the path resources continue with the normal CS voice service.
  • the terminal continuously measures the signal strength of the LTE network of the current serving cell. If the measurement result satisfies the measurement reporting condition, the terminal actively sends an RRC connection request, and establishes an RRC connection path with the network side. The current cell signal measurement result is reported to trigger the SRVCC process on the network side, so that the voice service can continue with the normal CS voice service, and the problem that the VoLTE service fails to switch to the CS domain through the SRVCC in time to solve the call drop is solved, thereby improving the problem. Call success rate.
  • FIG. 2 is a schematic flowchart diagram of another method for processing a VoLTE service according to an embodiment of the present invention. As shown in FIG. 2, the method may include:
  • S201 During the VoLTE service call, the terminal monitors whether the RRC connection release message sent by the network side is received. If the RRC connection release message is received, S202 is performed; otherwise, S203 is performed.
  • the terminal may register the LTE network and the IMS service when the system is initialized (such as booting).
  • the terminal is in the VoLTE service call, and monitors whether the RRC connection release message sent by the network side is received.
  • the terminal may notify the network side that the RRC connection is successfully released (this step is omitted in FIG. 2).
  • the terminal measures a signal strength of an LTE network of a current serving cell.
  • the terminal During the VoLTE service call, the terminal always measures the signal strength of the LTE network of the current serving cell until the VoLTE service call ends.
  • the terminal determines whether the measurement result meets the measurement reporting condition. If the measurement result satisfies the measurement reporting condition, then S205 is performed; otherwise, the process returns to S203 until the VoLTE service call ends.
  • the measurement reporting condition includes that the signal strength of the current server cell is less than a preset signal strength threshold.
  • the terminal may use Scur to indicate the signal strength of the LTE network of the current serving cell, and Svolte to indicate the signal strength threshold of the VoLTE service. When the Scur is smaller than the Svolte, the terminal may determine that the measurement result satisfies the measurement reporting condition.
  • the terminal detects whether there is an RRC connection currently with the network side. If there is an RRC connection with the network side, S207 is performed; otherwise, S206 is performed.
  • the first network is an LTE network
  • the second network is a non-LTE network
  • the non-LTE network includes a second generation mobile communication network or a third generation mobile communication network.
  • the terminal reserves the CS path resource in the second network (such as the GSM network or the UTRAN network). After the terminal switches from the first network to the second network, the terminal may reserve through the network side.
  • the path resources continue with the normal CS voice service.
  • the terminal continuously measures the signal strength of the LTE network of the current serving cell. If the measurement result satisfies the measurement reporting condition, the terminal actively sends an RRC connection request, and establishes an RRC connection path with the network side. The current cell signal measurement result is reported to trigger the SRVCC process on the network side, so that the voice service can continue with the normal CS voice service, and the problem that the VoLTE service fails to switch to the CS domain through the SRVCC in time to solve the call drop is solved, thereby improving the problem. Call success rate.
  • FIG. 3 is a schematic structural diagram of a processing apparatus for a VoLTE service according to an embodiment of the present invention.
  • the processing apparatus 3 of the VoLTE service may include at least: a strong signal
  • the signal strength measurement module 31 is configured to measure the signal strength of the LTE network of the current serving cell during the VoLTE service call, and the detecting module 32 is configured to detect whether the RRC connection exists between the current network and the network side if the measurement result meets the measurement reporting condition.
  • the connection module 33 is configured to send an RRC connection request message to the network side, and establish an RRC connection with the network side, if the RRC connection does not exist with the network side, and the sending module 34 is configured to use the RRC connection to The network side sends the measurement result, where the measurement result is used to indicate that the network side triggers an SRVCC process.
  • the sending module 34 may directly trigger the sending of the measurement result to the network side by using the RRC connection.
  • the measurement reporting condition includes that the signal strength of the current server cell is less than a preset signal strength threshold.
  • signal strength measurement module 31 may use Scur to indicate the signal strength of the LTE network of the current serving cell, and Svolte to represent the signal strength threshold of the VoLTE traffic. When the Scur is smaller than the Svolte, it may be determined that the measurement result satisfies the measurement reporting condition.
  • the processing device 3 further includes: a monitoring module 35 and a connection control module 36, wherein:
  • the monitoring module 35 is configured to monitor whether the RRC connection release message sent by the network side is received.
  • the connection control module 36 is configured to release the RRC connection if the RRC connection release message is received.
  • the processing device 3 further includes: a receiving module 37 and a processing module 38, wherein:
  • the receiving module 37 is configured to receive the SRVCC command sent by the network side, and the processing module 38 is configured to switch the current camping network from the first network to the second network according to the SRVCC command, where the first network For an LTE network, the second network is a non-LTE network.
  • the network side triggers the SRVCC process and issues an SRVCC command.
  • the receiving module 37 switches the current camping network from the first network to the second network.
  • the first network is an LTE network
  • the second network is a non-LTE network.
  • the non-LTE network includes a second generation mobile communication network or a third generation mobile communication network.
  • the terminal reserves the CS path resource in the second network (such as the GSM network or the UTRAN network), and after the processing module 38 switches the current camping network from the first network to the second network, The channel resources reserved by the network side can be continued in the normal CS voice service.
  • the second network such as the GSM network or the UTRAN network
  • the signal strength measurement module continuously measures the signal strength of the LTE network of the current serving cell, and if the measurement result satisfies the measurement reporting condition, the sending mode The block actively sends an RRC connection request, establishes an RRC connection path with the network side, and reports the current cell signal measurement result to trigger the SRVCC process on the network side, so that the voice service can continue with the normal CS voice service, and the VoLTE service is not timely.
  • the problem of dropped calls is caused by the SRVCC switching to the CS domain, thereby improving the call success rate.
  • an embodiment of the present invention provides a schematic structural diagram of a terminal.
  • the terminal 4 includes the processing device of the VoLTE service described in FIG. 3, and the terminal 4 can be used to implement the processing method of the VoLTE service provided in the embodiments of FIG. 1 to FIG. Specifically:
  • the terminal 4 may include a housing 41, a processor 42, a memory 43, a circuit board 44, and a power supply circuit 45, wherein the circuit board 44 is disposed inside a space surrounded by the housing 41, and the processor 42 and the memory 43 are disposed on the circuit board 44.
  • the power supply circuit 45 is configured to supply power to the respective circuits or devices of the terminal; the memory 43 is configured to store executable program code; and the processor 42 operates to read the executable program code by reading the executable program code stored in the memory 43.
  • the program is used to perform the following steps:
  • If there is no RRC connection with the network side send an RRC connection request message to the network side, and establish an RRC connection with the network side;
  • the processor 41 may also read the executable program code stored in the memory 43 and perform the following operations:
  • the executable program code stored in the memory 43 may also be read, and the following operations are performed:
  • the first network is an LTE network
  • the second network is a non-LTE network.
  • the non-LTE network includes a second generation mobile communication network or a third generation mobile communication network.
  • the measurement reporting condition includes that the signal strength of the current server cell is less than a preset signal strength threshold.
  • the processor continuously measures the signal strength of the LTE network of the current serving cell, and if the measurement result satisfies the measurement reporting condition, the RRC connection request is actively sent, and the RRC connection path is established with the network side.
  • the current cell signal measurement result is reported to trigger the SRVCC process on the network side, so that the voice service can continue with the normal CS voice service, and the problem that the VoLTE service fails to switch to the CS domain through the SRVCC in time to solve the call drop is solved, thereby improving the problem. Call success rate.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • a "computer-readable medium” can be any apparatus that can contain, store, communicate, propagate, or transport a program for use in an instruction execution system, apparatus, or device, or in conjunction with the instruction execution system, apparatus, or device.
  • computer readable media include the following: electrical connections (electronic devices) having one or more wires, portable computer disk cartridges (magnetic devices), random access memory (RAM), Read only memory (ROM), erasable editable read only memory (EPROM or flash memory), fiber optic devices, and portable compact disk read only memory (CDROM).
  • the computer readable medium may even be a paper or other suitable medium on which the program can be printed, as it may be optically scanned, for example by paper or other medium, followed by editing, interpretation or, if appropriate, other suitable The method is processed to obtain the program electronically and then stored in computer memory.
  • portions of the invention may be implemented in hardware, software, firmware or a combination thereof.
  • multiple steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system.
  • a suitable instruction execution system For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques well known in the art: having logic gates for implementing logic functions on data signals. Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.
  • each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules.
  • the integrated modules, if implemented in the form of software functional modules and sold or used as stand-alone products, may also be stored in a computer readable storage medium.
  • the above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

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Abstract

本发明实施例公开了一种VoLTE业务的处理方法，包括：在VoLTE业务通话过程中，测量当前服务小区的LTE网络的信号强度；若测量结果满足测量上报条件，则检测当前与网络侧是否存在RRC连接；若当前与网络侧不存在RRC连接，则向所述网络侧发送RRC连接请求消息，与所述网络侧建立RRC连接；通过所述RRC连接向所述网络侧发送所述测量结果，所述测量结果用于指示所述网络侧触发SRVCC流程。相应地，本发明实施例还公开了一种VoLTE业务的处理装置以及终端。采用本发明实施例，在网络配置不完善的前提下，可以避免VoLTE业务异常掉话。

Description

一种VoLTE业务的处理方法、处理装置及终端 技术领域
本发明涉及通信技术领域，尤其涉及一种VoLTE业务的处理方法、处理装置及终端。
背景技术
现有的VoLTE(即基于IMS(IP Multimedia Subsystem，IP多媒体子系统)的语音业务)技术方案，当终端在LTE(Long Term Evolution，长期演进)网络进行VoLTE语音业务时，终端会周期上报当前驻留的LTE服务小区的信号强度到网络侧，网络根据终端上报的服务小区测量质量评估是否需要将呼叫切换到CS域(即电路交换域)，如果需要切换到CS域，则会触发SRVCC(Single Radio Voice Call Continuity，即单无线模式终端从LTE网络切换到2G/3G的CS网络时语音呼叫保持业务连续性)流程进行会话转移，这样语音呼叫就从E-UTRAN(Evolved UMTS Terrestrial Radio Access Network，演进的UMTS陆地无线接入网)转移到3GPP的UTRAN/GERAN网络，即会话会从VoLTE切换为普通的CS语音业务，以保持通话的连续性。
现有的VoLTE网络，很多地方的网络配置还不完善，在使用过程中经常出现VoLTE业务没有及时通过SRVCC切换到CS域而导致掉话的问题。
发明内容
本发明实施例提供一种VoLTE业务的处理方法、处理装置及终端，在网络配置不完善的前提下，可以避免VoLTE业务异常掉话。
本发明第一方面提供了一种VoLTE业务的处理方法，包括：
在VoLTE业务通话过程中，测量当前服务小区的LTE网络的信号强度；若测量结果满足测量上报条件，则检测当前与网络侧是否存在RRC连接；若当前与网络侧不存在RRC连接，则向所述网络侧发送RRC连接请求消息，与所述网络侧建立RRC连接；通过所述RRC连接向所述网络侧发送所述测量结果， 所述测量结果用于指示所述网络侧触发SRVCC流程。
可选的，所述测量当前服务小区的LTE网络的信号强度之前，所述方法还包括：监测是否接收到网络侧下发的RRC连接释放消息；若接收到所述RRC连接释放消息，则释放RRC连接。
可选的，所述向所述网络侧发送所述测量结果之后，所述方法还包括：接收所述网络侧下发的SRVCC指令；根据所述SRVCC指令将当前驻留网络从第一网络切换到第二网络；其中，所述第一网络为LTE网络，所述第二网络为非LTE网络。
可选的，所述非LTE网络包括第二代移动通信网络或第三代移动通信网络。
可选的，所述测量上报条件包括当前服务器小区的信号强度小于预设信号强度门限值。
相应地，本发明第二方面提供了一种VoLTE业务的处理装置，包括：
信号强度测量模块，用于在VoLTE业务通话过程中，测量当前服务小区的LTE网络的信号强度；检测模块，用于若测量结果满足测量上报条件，则检测当前与网络侧是否存在RRC连接；连接模块，用于若当前与网络侧不存在RRC连接，则向所述网络侧发送RRC连接请求消息，与所述网络侧建立RRC连接；发送模块，用于通过所述RRC连接向所述网络侧发送所述测量结果，所述测量结果用于指示所述网络侧触发SRVCC流程。
可选的，所述装置还包括：
监测模块，用于监测是否接收到网络侧下发的RRC连接释放消息；连接控制模块，用于若接收到所述RRC连接释放消息，则释放RRC连接。
可选的，所述装置还包括：
接收模块，用于接收所述网络侧下发的SRVCC指令；处理模块，用于根据所述SRVCC指令将当前驻留网络从第一网络切换到第二网络，其中，所述第一网络为LTE网络，所述第二网络为非LTE网络。
可选的，所述测量上报条件包括当前服务器小区的信号强度小于预设信号强度门限值。
相应地，本发明第三方面提供了一种终端，包括第二方面部分或全部的处理装置。
实施本发明实施例，具有以下有益效果：
在VoLTE业务通话过程中，终端持续测量当前服务小区的LTE网络的信号强度，若测量结果满足测量上报条件，终端则主动发送RRC连接请求，与网络侧建立RRC连接通路，并上报当前小区信号测量结果，以触发网络侧的SRVCC流程，使得语音业务可以以普通的CS语音业务继续，解决了VoLTE业务没有及时通过SRVCC切换到CS域而导致掉话的问题，从而提高了通话成功率。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例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。
图1是本发明实施例提供的一种VoLTE业务的处理方法的流程示意图；
图2是本发明实施例提供的另一种VoLTE业务的处理方法的流程示意图；
图3是本发明实施例提供的一种VoLTE业务的处理装置的结构示意图；
图4是本发明实施例提供的一种终端的结构示意图。
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做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。
在此部分，首先对本发明各个实施例均涉及到的概念进行说明。
本发明实施例所述的终端指的是既能支持LTE网络业务，又能支持第二代移动通信网络(2G，2nd generation)或第三代移动通信网络(3G，3nd generation)的终端。所述终端包括个人电脑、平板电脑或智能手机等通信电子设备。
当终端在LTE网络发起VoLTE语音业务时，在通话一段时间后，因网络侧对于普通的LTE PS业务和VoLTE专用业务处理不同步，网络侧判断终端在普 通LTE上没有业务，就会下发RRC连接释放消息，指示终端进入IDLE态(即空闲态)，虽然此时终端还在进行VoLTE专用业务，但由于RRC连接被释放，导致终端无法上报小区信号的测量结果，当终端移动到信号较差的区域时，网络侧无法获知终端所处区域的LTE小区信号已经不足以支持VoLTE业务。因此，网络侧不会触发终端的SRVCC流程，从而导致VoLTE业务异常掉话。针对于此，本申请提出了一种改进的VoLTE业务的处理方法，在网络配置不完善的前提下，可以避免VoLTE业务的异常掉话，以下结合图1～图2对应的实施例进行详细说明。
请参阅图1，图1是本发明实施例提供的一种VoLTE业务的处理方法的流程示意图。如图1所示，所述方法包括：
S110，在VoLTE业务通话过程中，测量当前服务小区的LTE网络的信号强度。
具体的，终端可以在系统初始化(如开机)时注册LTE网络及IMS业务。在用户进行IMS业务语音呼叫过程中，即终端处于VoLTE业务通话过程中，终端持续测量当前服务小区的LTE网络的信号强度。若测量结果满足测量上报条件，则执行步骤S120。需要说明的是，终端如何与网络侧建立VoLTE业务的呼叫连接为现有技术，可以参见现有相关描述，在此不再赘述。
进一步的，终端在测量当前服务小区的LTE网络的信号强度之前，还可以监测是否接收到网络侧下发的RRC连接释放消息，若接收到所述RRC连接释放消息，则释放RRC连接，并通知网络侧RRC连接释放成功。
需要说明的是，终端如何释放RRC连接是现有技术，在此不再赘述。
S120，若测量结果满足测量上报条件，则检测当前与网络侧是否存在RRC连接。若当前与网络侧不存在RRC连接，则执行S130；否则，直接通过当前的RRC连接向网络侧上报测量结果。
所述测量上报条件包括当前服务器小区的信号强度小于预设信号强度门限值。在一些示例中，所述终端可以使用Scur表示当前服务小区的LTE网络的信号强度，使用Svolte表示所述VoLTE业务的信号强度门限值。当所述Scur小于所述Svolte时，终端可以确定测量结果满足测量上报条件。
S130，向所述网络侧发送RRC连接请求消息，与所述网络侧建立RRC连 接。需要说明的是，终端如何与网络侧检测RRC连接是现有技术，可以参见现有相关描述，在此不再赘述。
S140，通过所述RRC连接向所述网络侧发送所述测量结果，所述测量结果用于指示所述网络侧触发SRVCC流程。SRVCC流程，即单无线模式终端从LTE网络切换到2G/3G的CS网络时语音呼叫保持业务连续性。
网络侧触发SRVCC流程，并下发SRVCC指令给所述终端，终端在接收到该SRVCC指令后，将当前驻留网络从第一网络切换到第二网络。其中，所述第一网络为LTE网络，所述第二网络为非LTE网络。进一步的，所述非LTE网络包括第二代移动通信网络或第三代移动通信网络。
具体的，网络侧触发SRVCC流程时，为终端在第二网络(如GSM网络或UTRAN网络)预留CS通路资源，当终端从第一网络切换到第二网络后，可以通过网络侧预留的通路资源以普通的CS语音业务继续。
在该技术方案中，在VoLTE业务通话过程中，终端持续测量当前服务小区的LTE网络的信号强度，若测量结果满足测量上报条件，终端则主动发送RRC连接请求，与网络侧建立RRC连接通路，并上报当前小区信号测量结果，以触发网络侧的SRVCC流程，使得语音业务可以以普通的CS语音业务继续，解决了VoLTE业务没有及时通过SRVCC切换到CS域而导致掉话的问题，从而提高了通话成功率。
请参阅图2，图2是本发明实施例提供的另一种VoLTE业务的处理方法的流程示意图。如图2所示，所述方法可以包括：
S201，在VoLTE业务通话过程中，终端监测是否接收到网络侧下发的RRC连接释放消息。若接收到RRC连接释放消息，则执行S202；否则，执行S203。
具体的，终端可以在系统初始化(如开机)时注册LTE网络及IMS业务。在用户进行IMS业务语音呼叫过程中，即终端处于VoLTE业务通话过程中，监测是否接收到网络侧下发的RRC连接释放消息。
S202，终端释放RRC连接。
终端可以通知网络侧RRC连接释放成功(图2中省略此步骤)。
S203，终端测量当前服务小区的LTE网络的信号强度。
终端在VoLTE业务通话过程中，一直测量当前服务小区的LTE网络的信号强度，直到VoLTE业务通话结束。
S204，终端判断测量结果是否满足测量上报条件。若测量结果满足测量上报条件，则执行S205；否则，返回执行S203，直到VoLTE业务通话结束。
所述测量上报条件包括当前服务器小区的信号强度小于预设信号强度门限值。在一些示例中，所述终端可以使用Scur表示当前服务小区的LTE网络的信号强度，使用Svolte表示所述VoLTE业务的信号强度门限值。当所述Scur小于所述Svolte时，终端可以确定测量结果满足测量上报条件。
S205，终端检测当前与网络侧是否存在RRC连接。若当前与网络侧存在RRC连接，则执行S207，否则，执行S206。
S206，向网络侧发送RRC连接请求消息，与网络侧建立RRC连接。
S207，上报当前服务小区的LTE网络的信号强度的测量结果，以使网络侧触发SRVCC流程。
S208，接收网络侧下发的SRVCC指令。
S209，将当前驻留网络从第一网络切换到第二网络。
其中，所述第一网络为LTE网络，所述第二网络为非LTE网络。进一步的，所述非LTE网络包括第二代移动通信网络或第三代移动通信网络。
具体的，网络侧触发SRVCC流程时，为终端在第二网络(如GSM网络或UTRAN网络)预留CS通路资源，当终端从第一网络切换到第二网络后，可以通过网络侧预留的通路资源以普通的CS语音业务继续。
在该技术方案中，在VoLTE业务通话过程中，终端持续测量当前服务小区的LTE网络的信号强度，若测量结果满足测量上报条件，终端则主动发送RRC连接请求，与网络侧建立RRC连接通路，并上报当前小区信号测量结果，以触发网络侧的SRVCC流程，使得语音业务可以以普通的CS语音业务继续，解决了VoLTE业务没有及时通过SRVCC切换到CS域而导致掉话的问题，从而提高了通话成功率。
请参阅图3，图3是本发明实施例提供的一种VoLTE业务的处理装置的结构示意图。如图3所示，所述VoLTE业务的处理装置3至少可以包括：信号强 度测量模块31、检测模块32、连接模块33以及发送模块34，其中：
信号强度测量模块31，用于在VoLTE业务通话过程中，测量当前服务小区的LTE网络的信号强度；检测模块32，用于若测量结果满足测量上报条件，则检测当前与网络侧是否存在RRC连接；连接模块33，用于若当前与网络侧不存在RRC连接，则向所述网络侧发送RRC连接请求消息，与所述网络侧建立RRC连接；发送模块34，用于通过所述RRC连接向所述网络侧发送所述测量结果，所述测量结果用于指示所述网络侧触发SRVCC流程。
进一步的，若所述检测模块32检测到当前与网络侧存在RRC连接，可直接触发所述发送模块34通过所述RRC连接向所述网络侧发送所述测量结果。
其中，所述测量上报条件包括当前服务器小区的信号强度小于预设信号强度门限值。在一些示例中，信号强度测量模块31可以使用Scur表示当前服务小区的LTE网络的信号强度，使用Svolte表示所述VoLTE业务的信号强度门限值。当所述Scur小于所述Svolte时，可以确定测量结果满足测量上报条件。
可选的，处理装置3还包括：监测模块35以及连接控制模块36，其中：
监测模块35，用于监测是否接收到网络侧下发的RRC连接释放消息；连接控制模块36，用于若接收到所述RRC连接释放消息，则释放RRC连接。
可选的，处理装置3还包括：接收模块37以及处理模块38，其中：
接收模块37，用于接收所述网络侧下发的SRVCC指令；处理模块38，用于根据所述SRVCC指令将当前驻留网络从第一网络切换到第二网络，其中，所述第一网络为LTE网络，所述第二网络为非LTE网络。
网络侧触发SRVCC流程，并下发SRVCC指令，接收模块37在接收到该SRVCC指令后，处理模块38将当前驻留网络从第一网络切换到第二网络。其中，所述第一网络为LTE网络，所述第二网络为非LTE网络。进一步的，所述非LTE网络包括第二代移动通信网络或第三代移动通信网络。
具体的，网络侧触发SRVCC流程时，为终端在第二网络(如GSM网络或UTRAN网络)预留CS通路资源，当处理模块38将当前驻留网络从第一网络切换到第二网络后，可以通过网络侧预留的通路资源以普通的CS语音业务继续。
在该技术方案中，在VoLTE业务通话过程中，信号强度测量模块持续测量当前服务小区的LTE网络的信号强度，若测量结果满足测量上报条件，发送模 块则主动发送RRC连接请求，与网络侧建立RRC连接通路，并上报当前小区信号测量结果，以触发网络侧的SRVCC流程，使得语音业务可以以普通的CS语音业务继续，解决了VoLTE业务没有及时通过SRVCC切换到CS域而导致掉话的问题，从而提高了通话成功率。
请参阅图4，本发明实施例提供了一种终端的结构示意图。该终端4包含图3所述的VoLTE业务的处理装置，且终端4可以用于实施图1～图2实施例中提供的VoLTE业务的处理方法。具体来讲：
终端4可以包括壳体41、处理器42、存储器43、电路板44和电源电路45，其中，电路板44安置在壳体41围成的空间内部，处理器42和存储器43设置在电路板44上；电源电路45，用于为终端的各个电路或器件供电；存储器43用于存储可执行程序代码；处理器42通过读取存储器43中存储的可执行程序代码来运行与可执行程序代码对应的程序，以用于执行以下步骤：
在VoLTE业务通话过程中，测量当前服务小区的LTE网络的信号强度；
若测量结果满足测量上报条件，则检测当前与网络侧是否存在RRC连接；
若当前与网络侧不存在RRC连接，则向所述网络侧发送RRC连接请求消息，与所述网络侧建立RRC连接；
通过所述RRC连接向所述网络侧发送所述测量结果，所述测量结果用于指示所述网络侧触发SRVCC流程。
可选的，处理器41在测量当前服务小区的LTE网络的信号强度之前，还可以读取存储器43中存储的可执行程序代码，执行以下操作：
监测是否接收到网络侧下发的RRC连接释放消息；
若接收到所述RRC连接释放消息，则释放RRC连接。
可选的，处理器41向所述网络侧发送所述测量结果之后，还可以读取存储器43中存储的可执行程序代码，执行以下操作：
接收所述网络侧下发的SRVCC指令；
根据所述SRVCC指令将当前驻留网络从第一网络切换到第二网络；
其中，所述第一网络为LTE网络，所述第二网络为非LTE网络。
其中，所述非LTE网络包括第二代移动通信网络或第三代移动通信网络。
其中，所述测量上报条件包括当前服务器小区的信号强度小于预设信号强度门限值。
在该技术方案中，在VoLTE业务通话过程中，处理器持续测量当前服务小区的LTE网络的信号强度，若测量结果满足测量上报条件，则主动发送RRC连接请求，与网络侧建立RRC连接通路，并上报当前小区信号测量结果，以触发网络侧的SRVCC流程，使得语音业务可以以普通的CS语音业务继续，解决了VoLTE业务没有及时通过SRVCC切换到CS域而导致掉话的问题，从而提高了通话成功率。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
流程图中或在此以其他方式描述的任何过程或方法描述可以被理解为，表示包括一个或更多个用于实现特定逻辑功能或过程的步骤的可执行指令的代码的模块、片段或部分，并且本发明的优选实施方式的范围包括另外的实现，其中可以不按所示出或讨论的顺序，包括根据所涉及的功能按基本同时的方式或按相反的顺序，来执行功能，这应被本发明的实施例所属技术领域的技术人员所理解。
在流程图中表示或在此以其他方式描述的逻辑和/或步骤，例如，可以被认为是用于实现逻辑功能的可执行指令的定序列表，可以具体实现在任何计算机可读介质中，以供指令执行系统、装置或设备(如基于计算机的系统、包括处理器的系统或其他可以从指令执行系统、装置或设备取指令并执行指令的系统) 使用，或结合这些指令执行系统、装置或设备而使用。就本说明书而言，"计算机可读介质"可以是任何可以包含、存储、通信、传播或传输程序以供指令执行系统、装置或设备或结合这些指令执行系统、装置或设备而使用的装置。计算机可读介质的更具体的示例(非穷尽性列表)包括以下：具有一个或多个布线的电连接部(电子装置)，便携式计算机盘盒(磁装置)，随机存取存储器(RAM)，只读存储器(ROM)，可擦除可编辑只读存储器(EPROM或闪速存储器)，光纤装置，以及便携式光盘只读存储器(CDROM)。另外，计算机可读介质甚至可以是可在其上打印所述程序的纸或其他合适的介质，因为可以例如通过对纸或其他介质进行光学扫描，接着进行编辑、解译或必要时以其他合适方式进行处理来以电子方式获得所述程序，然后将其存储在计算机存储器中。
应当理解，本发明的各部分可以用硬件、软件、固件或它们的组合来实现。在上述实施方式中，多个步骤或方法可以用存储在存储器中且由合适的指令执行系统执行的软件或固件来实现。例如，如果用硬件来实现，和在另一实施方式中一样，可用本领域公知的下列技术中的任一项或他们的组合来实现：具有用于对数据信号实现逻辑功能的逻辑门电路的离散逻辑电路，具有合适的组合逻辑门电路的专用集成电路，可编程门阵列(PGA)，现场可编程门阵列(FPGA)等。
本技术领域的普通技术人员可以理解实现上述实施例方法携带的全部或部分步骤是可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，该程序在执行时，包括方法实施例的步骤之一或其组合。此外，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模块中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。所述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。
上述提到的存储介质可以是只读存储器，磁盘或光盘等。尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。

Claims (10)

  1. 一种VoLTE业务的处理方法，其特征在于，包括：
    在VoLTE业务通话过程中，测量当前服务小区的LTE网络的信号强度；
    若测量结果满足测量上报条件，则检测当前与网络侧是否存在RRC连接；
    若当前与网络侧不存在RRC连接，则向所述网络侧发送RRC连接请求消息，与所述网络侧建立RRC连接；
    通过所述RRC连接向所述网络侧发送所述测量结果，所述测量结果用于指示所述网络侧触发SRVCC流程。
  2. 权利要求1所述的方法，其特征在于，
    所述测量当前服务小区的LTE网络的信号强度之前，所述方法还包括：
    监测是否接收到网络侧下发的RRC连接释放消息；
    若接收到所述RRC连接释放消息，则释放RRC连接。
  3. 如权利要求1所述的方法，其特征在于，
    所述向所述网络侧发送所述测量结果之后，所述方法还包括：
    接收所述网络侧下发的SRVCC指令；
    根据所述SRVCC指令将当前驻留网络从第一网络切换到第二网络；
    其中，所述第一网络为LTE网络，所述第二网络为非LTE网络。
  4. 如权利要求3所述的方法，其特征在于，所述非LTE网络包括第二代移动通信网络或第三代移动通信网络。
  5. 如权利要求1-4中任一项所述的方法，其特征在于，所述测量上报条件包括当前服务器小区的信号强度小于预设信号强度门限值。
  6. 一种VoLTE业务的处理装置，其特征在于，包括：
    信号强度测量模块，用于在VoLTE业务通话过程中，测量当前服务小区的 LTE网络的信号强度；
    检测模块，用于若测量结果满足测量上报条件，则检测当前与网络侧是否存在RRC连接；
    连接模块，用于若当前与网络侧不存在RRC连接，则向所述网络侧发送RRC连接请求消息，与所述网络侧建立RRC连接；
    发送模块，用于通过所述RRC连接向所述网络侧发送所述测量结果，所述测量结果用于指示所述网络侧触发SRVCC流程。
  7. 如权利要求6所述的装置，其特征在于，所述装置还包括：
    监测模块，用于监测是否接收到网络侧下发的RRC连接释放消息；
    连接控制模块，用于若接收到所述RRC连接释放消息，则释放RRC连接。
  8. 如权利要求6所述的装置，其特征在于，所述装置还包括：
    接收模块，用于接收所述网络侧下发的SRVCC指令；
    处理模块，用于根据所述SRVCC指令将当前驻留网络从第一网络切换到第二网络，其中，所述第一网络为LTE网络，所述第二网络为非LTE网络。
  9. 如权利要求6-8中任一项所述的方法，其特征在于，所述测量上报条件包括当前服务器小区的信号强度小于预设信号强度门限值。
  10. 一种终端，其特征在于，包括如权利要求书6-9中任一项所述的VoLTE业务的处理装置。
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