WO2016201772A1 - 网络制式的控制方法、***和终端 - Google Patents

网络制式的控制方法、***和终端 Download PDF

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Publication number
WO2016201772A1
WO2016201772A1 PCT/CN2015/085875 CN2015085875W WO2016201772A1 WO 2016201772 A1 WO2016201772 A1 WO 2016201772A1 CN 2015085875 W CN2015085875 W CN 2015085875W WO 2016201772 A1 WO2016201772 A1 WO 2016201772A1
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network
signaling
handover
abnormality
virtual private
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PCT/CN2015/085875
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English (en)
French (fr)
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成厚富
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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 WO2016201772A1 publication Critical patent/WO2016201772A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface

Definitions

  • the present invention relates to the field of terminal technologies, and in particular, to a network system control method, a network standard control system, and a terminal.
  • VPDN virtual private dial-up network
  • 3G/4G a virtual private dial-up network
  • the terminal never A city that supports 4G channel VPDN roams to a city that supports 4G channel VPDN.
  • the preferred switching of the VPDN channel cannot be achieved. Since the customized version of the terminal will completely disable the 4G channel, if the user wants to use the non-VPDN service, the high-speed 4G channel will not be used. , seriously affecting the user experience.
  • the present invention is based on at least one of the above technical problems, and proposes a new control scheme capable of determining a network standard according to a connection abnormality of a VPDN service, and determining whether to switch to a virtual private dial-up network under a 4G network by a judgment. Abnormal signaling and switching to a matching network standard based on handover exception signaling.
  • a network system control method including: transmitting a first handover signaling to a base station to request handover to a virtual private dial-up network under a 4G network; Determining whether to obtain the handover abnormality signaling within a specified time after the first handover signaling is sent; after determining to obtain the handover abnormality signaling, determining whether there is a matching with the handover abnormal signaling The network system; when it is determined that there is a network system matching the handover abnormality signaling, switching to the matching network standard.
  • whether the handover abnormal signaling is generated by determining whether to request to switch to the virtual private dial-up network under the 4G network, and switching to the matching network standard according to the handover abnormal signaling.
  • the handover abnormality signaling fed back by the base station is acquired within a specified time when the terminal requests to switch to the virtual private dial-up network, it is determined that the core network where the base station is located does not support the network standard corresponding to the virtual private dial-up network, and therefore, the fast The abnormal signaling is switched to perform matching processing to determine a network standard corresponding to different handover abnormal signaling.
  • the network standard corresponding to the handover abnormal signaling includes: an LTE (Long Term Evolution) network standard, an EHRPD (Evoluted High Rate Packet Date) network standard, and an EVDO (Evolution Data Only).
  • LTE Long Term Evolution
  • EHRPD Evoluted High Rate Packet Date
  • EVDO Evolution Data Only
  • Network standard and CDMA Code Division Multiple Access 20001X network standard.
  • the method before transmitting the first handover signaling requesting to switch to the virtual private dial-up network of the 4G network, the method includes: sending, to the base station, second handover signaling requesting connection to the 4G network; After the acknowledgement corresponding to the second handover signaling is connected to the feedback signaling of the 4G network, the second handover signaling is connected to the 4G network.
  • the method before sending the first handover signaling requesting the handover to the virtual private dial-up network of the 4G network, the method further includes: creating and storing a mapping including the correspondence between the handover abnormality signaling and the network standard a table to determine, according to the mapping table, whether there is a network standard that matches the handover abnormality signaling.
  • mapping table including the correspondence between the switching abnormal signaling and the network standard
  • the efficiency of processing the abnormal situation when accessing the virtual private dialing network is improved, that is, the mapping table is quickly determined according to the mapping table. Access the network standard corresponding to the exception command.
  • the handover abnormal signaling includes a first type of reject signaling generated in a link control protocol negotiation phase; or a second type of reject signaling generated in an EAP-AKA authentication phase; or The third type of reject signaling generated during the VSNCP (Vendor Specific Network Control Protocol) protocol phase.
  • VSNCP Vendor Specific Network Control Protocol
  • the first type of reject signaling generated in the link control protocol negotiation phase or the second type of reject signaling generated in the EAP-AKA authentication phase, or in the VSNCP is set by setting the handover abnormality signaling.
  • the third type of refusal signaling generated during the protocol phase provides a specific basis for determining the access anomaly, and thus prompts the accuracy of the network standard handover.
  • determining whether there is a network standard that matches the handover abnormality signaling includes: switching when determining that the handover abnormality signaling is not acquired, a network system corresponding to the virtual private dial-up network under the 4G network.
  • a network system control system including: a sending unit, configured to send a first handover signaling to a base station to request to switch to a virtual private dial-up network under a 4G network; a determining unit, configured to determine whether to acquire the switching abnormality signaling within a specified time after the sending the first switching signaling, where the determining unit is further configured to: after determining to obtain the switching abnormal signaling, determine whether the a network system matching the handover abnormality signaling; the network system control system further includes: a handover unit, configured to switch to the matched network when determining that there is a network standard matching the handover abnormality signaling System.
  • whether the handover abnormal signaling is generated by determining whether to request to switch to the virtual private dial-up network under the 4G network, and switching to the matching network standard according to the handover abnormal signaling.
  • the handover abnormality signaling fed back by the base station is acquired within a specified time when the terminal requests to switch to the virtual private dial-up network, it is determined that the core network where the base station is located does not support the network standard corresponding to the virtual private dial-up network, and therefore, the fast The abnormal signaling is switched to perform matching processing to determine a network standard corresponding to different handover abnormal signaling.
  • the network standard corresponding to the handover abnormal signaling includes: an LTE (Long Term Evolution) network standard, an EHRPD (Evoluted High Rate Packet Date) network standard, and an EVDO (Evolution Data Only).
  • LTE Long Term Evolution
  • EHRPD Evoluted High Rate Packet Date
  • EVDO Evolution Data Only
  • Network standard and CDMA Code Division Multiple Access 20001X network standard.
  • the sending unit is further configured to: send, to the base station, second handover signaling that is requested to connect to the 4G network; the switching unit is further configured to: acquire the second switching After the corresponding acknowledgment is connected to the feedback signaling of the 4G network, it is connected to the 4G network.
  • the method further includes: a creating unit, configured to create and store a mapping table including a correspondence between the switching abnormality signaling and a network standard, to determine whether the presence and the switching are performed according to the mapping table.
  • the network standard for abnormal signaling matching is a mapping table including a correspondence between the switching abnormality signaling and a network standard.
  • mapping table including the correspondence between the switching abnormal signaling and the network standard
  • the efficiency of processing the abnormal situation when accessing the virtual private dialing network is improved, that is, the mapping table is quickly determined according to the mapping table. Access the network standard corresponding to the exception command.
  • the handover abnormal signaling includes a first type of reject signaling generated in a link control protocol negotiation phase; or a second type of reject signaling generated in an EAP-AKA authentication phase; or The third type of reject signaling generated during the VSNCP protocol phase.
  • the first type of reject signaling generated in the link control protocol negotiation phase or the second type of reject signaling generated in the EAP-AKA authentication phase, or in the VSNCP is set by setting the handover abnormality signaling.
  • the third type of refusal signaling generated during the protocol phase provides a specific basis for determining the access anomaly, and thus prompts the accuracy of the network standard handover.
  • the switching unit is further configured to: when it is determined that the handover abnormality signaling is not acquired, switch to a network standard corresponding to the virtual private dialing network under the 4G network.
  • a terminal comprising a processor and a memory, wherein the memory stores a set of program codes, and the processor is configured to call the program code stored in the memory Used to do the following:
  • the processor before sending the request to switch to the first handover signaling of the virtual private dial-up network of the 4G network, further includes: sending a request to the base station to connect to the 4G network The second switching signaling of the network is connected to the 4G network after obtaining the feedback signaling corresponding to the second handover signaling and confirming the connection to the 4G network.
  • the method before the sending, by the processor, the first handover signaling of the virtual private dial-up network that is requested to be switched to the 4G network, the method further includes: creating and storing the handover abnormality signaling and the network standard. Corresponding relationship mapping table, according to the mapping table, determining whether there is a network standard matching the handover abnormality signaling.
  • the handover abnormal signaling includes a first type of reject signaling generated in a link control protocol negotiation phase; or a second type of reject signaling generated in an EAP-AKA authentication phase; or The third type of reject signaling generated during the VSNCP protocol phase.
  • the processor determines whether there is a network standard that matches the handover abnormality signaling, and includes: determining that the handover abnormality message is not acquired. In response to the time, the network system corresponding to the virtual private dialing network under the 4G network is switched.
  • FIG. 1 is a flow chart showing a control method of a network system according to an embodiment of the present invention
  • FIG. 2 shows a schematic block diagram of a network system control system in accordance with an embodiment of the present invention
  • Figure 3 shows a schematic block diagram of a terminal in accordance with an embodiment of the present invention
  • FIG. 4 shows a schematic block diagram of a terminal in accordance with another embodiment of the present invention.
  • FIG. 1 is a flow chart showing a control method of a network system according to an embodiment of the present invention.
  • a method for controlling a network standard includes: Step 102: Send a first handover signaling to a base station to request handover to a virtual private dial-up network under a 4G network; Step 104, Determining whether to obtain the handover abnormality signaling within a specified time after the first handover signaling is sent; Step 106, after determining to obtain the handover abnormality signaling, determining whether there is a network standard matching the handover abnormality signaling Step 108: When it is determined that there is a network system matching the handover abnormality signaling, switching to the matched network standard.
  • whether the handover abnormal signaling is generated by determining whether to request to switch to the virtual private dial-up network under the 4G network, and switching to the matching network standard according to the handover abnormal signaling.
  • the handover abnormality signaling fed back by the base station is acquired within a specified time when the terminal requests to switch to the virtual private dial-up network, it is determined that the core network where the base station is located does not support the network standard corresponding to the virtual private dial-up network, and therefore, the fast The abnormal signaling is switched to perform matching processing to determine a network standard corresponding to different handover abnormal signaling.
  • the network standard corresponding to the handover abnormal signaling includes: an LTE (Long Term Evolution) network standard, an EHRPD (Evoluted High Rate Packet Date) network standard, and an EVDO (Evolution Data Only).
  • LTE Long Term Evolution
  • EHRPD Evoluted High Rate Packet Date
  • EVDO Evolution Data Only
  • Network standard and CDMA Code Division Multiple Access 20001X network standard.
  • the method before transmitting the first handover signaling requesting to switch to the virtual private dial-up network of the 4G network, the method includes: sending, to the base station, second handover signaling requesting connection to the 4G network; After the acknowledgement corresponding to the second handover signaling is connected to the feedback signaling of the 4G network, the second handover signaling is connected to the 4G network.
  • the method before sending the first handover signaling requesting the handover to the virtual private dial-up network of the 4G network, the method further includes: creating and storing a mapping including the correspondence between the handover abnormality signaling and the network standard a table to determine, according to the mapping table, whether there is a network standard that matches the handover abnormality signaling.
  • mapping table of the system improves the efficiency of processing abnormal conditions when accessing the virtual private dial-up network, that is, quickly determines the network standard corresponding to the access abnormality command according to the mapping table.
  • the handover abnormal signaling includes a first type of reject signaling generated in a link control protocol negotiation phase; or a second type of reject signaling generated in an EAP-AKA authentication phase; or The third type of reject signaling generated during the VSNCP (Vendor Specific Network Control Protocol) protocol phase.
  • VSNCP Vendor Specific Network Control Protocol
  • the first type of reject signaling generated in the link control protocol negotiation phase or the second type of reject signaling generated in the EAP-AKA authentication phase, or in the VSNCP is set by setting the handover abnormality signaling.
  • the third type of refusal signaling generated during the protocol phase provides a specific basis for determining the access anomaly, and thus prompts the accuracy of the network standard handover.
  • determining whether there is a network standard that matches the handover abnormality signaling includes: switching when determining that the handover abnormality signaling is not acquired, a network system corresponding to the virtual private dial-up network under the 4G network.
  • FIG. 2 shows a schematic block diagram of a control system of a network system in accordance with an embodiment of the present invention.
  • the control system 200 of the network system includes: a sending unit 202, configured to send a first handover signaling to a base station to request to switch to a virtual private dial-up network under a 4G network;
  • the determining unit 204 is configured to determine whether to acquire the handover abnormality signaling within a specified time after the sending the first handover signaling, and the determining unit 204 is further configured to: after determining to obtain the handover abnormality signaling, determine Whether there is a network system matching the handover abnormality signaling; the control system 200 of the network system further includes: a switching unit 206, configured to switch to the network when determining that there is a network standard matching the handover abnormality signaling The matching network standard.
  • whether the handover abnormal signaling is generated by determining whether to request to switch to the virtual private dial-up network under the 4G network, and switching to the matching network standard according to the handover abnormal signaling.
  • the handover abnormality signaling fed back by the base station is acquired within a specified time when the terminal requests to switch to the virtual private dial-up network, it is determined that the core network where the base station is located does not support the network standard corresponding to the virtual private dial-up network, and therefore, the fast The abnormal signaling is switched to perform matching processing to determine a network standard corresponding to different handover abnormal signaling.
  • the network standard corresponding to the handover abnormal signaling includes: an LTE (Long Term Evolution) network standard, an EHRPD (Evoluted High Rate Packet Date) network standard, and an EVDO (Evolution Data Only).
  • LTE Long Term Evolution
  • EHRPD Evoluted High Rate Packet Date
  • EVDO Evolution Data Only
  • Network standard and CDMA Code Division Multiple Access 20001X network standard.
  • the sending unit 202 is further configured to: send, to the base station, a second handover signaling that is requested to connect to the 4G network; the switching unit 206 is further configured to: acquire the second After the acknowledgment corresponding to the handover signaling is connected to the feedback signaling of the 4G network, it is connected to the 4G network.
  • the method further includes: a creating unit 208, configured to create and store a mapping table including a correspondence between the switching abnormality signaling and a network standard, to determine whether the presence and the Switch the network format of the abnormal signaling matching.
  • mapping table including the correspondence between the switching abnormal signaling and the network standard
  • the efficiency of processing the abnormal situation when accessing the virtual private dialing network is improved, that is, the mapping table is quickly determined according to the mapping table. Access the network standard corresponding to the exception command.
  • the handover abnormal signaling includes a first type of reject signaling generated in a link control protocol negotiation phase; or a second type of reject signaling generated in an EAP-AKA authentication phase; or The third type of reject signaling generated during the VSNCP protocol phase.
  • the first type of reject signaling generated in the link control protocol negotiation phase or the second type of reject signaling generated in the EAP-AKA authentication phase, or in the VSNCP is set by setting the handover abnormality signaling.
  • the third type of refusal signaling generated during the protocol phase provides a specific basis for determining the access anomaly, and thus prompts the accuracy of the network standard handover.
  • Table 1 describes the access exception signaling in the EHRPD network standard creation process, where the exception type corresponds to the specified access exception signaling, and the network format corresponding to different abnormal types is determined according to the pre-stored mapping table, and is controlled. The terminal quickly switches to the network standard.
  • the switching unit 206 is further configured to: when it is determined that the handover abnormality signaling is not acquired, switch to a network standard corresponding to the virtual private dialing network under the 4G network.
  • FIG. 3 shows a schematic block diagram of a terminal in accordance with an embodiment of the present invention.
  • a terminal 300 includes: a control system 200 of a network system according to any one of the above aspects.
  • FIG. 4 shows a schematic block diagram of a terminal in accordance with another embodiment of the present invention.
  • the terminal may include: at least one processor 41, such as a CPU, at least one communication bus 42 and a memory 43; a communication bus 42 for implementing connection communication between these components; and the memory 43 may be a high speed RAM
  • the memory may also be a non-volatile memory such as at least one disk storage.
  • a set of program codes is stored in the memory 43, and the processor 41 is configured to call the program code stored in the memory 43 to perform the following operations:
  • the network system is switched to the matching.
  • the processor 41 Before the processor 41 sends a request to switch to the first handover signaling of the virtual private dial-up network of the 4G network, the processor 41 further includes:
  • the processor 41 Before the processor 41 sends a request to switch to the first handover signaling of the virtual private dial-up network of the 4G network, the processor 41 further includes:
  • a mapping table including a correspondence between the handover abnormality signaling and a network standard is created and stored to determine, according to the mapping table, whether there is a network standard that matches the handover abnormality signaling.
  • the handover abnormality signaling includes a first type of reject signaling generated in a link control protocol negotiation phase; or a second type of reject signaling generated in an EAP-AKA authentication phase; or a first generated in a VSNCP protocol phase Three types of rejection signaling.
  • the processor 41 determines whether there is a The network standard for switching abnormal signaling is included, including:
  • the network system corresponding to the virtual private dial-up network under the 4G network is switched.
  • the present invention proposes a new convenient and more secure network system control scheme and a terminal, which can generate handover abnormality signaling by judging whether a request to switch to a virtual private dial-up network under a 4G network is generated, and Switch to the matching network standard according to the handover abnormality signaling.

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Abstract

本发明提供了一种网络制式的控制方法、***和终端，其中，所述网络制式的控制方法，包括：向基站发送第一切换信令，以请求切换至4G网络制式下的虚拟专用拨号网；在发送所述第一切换信令后的指定时间内，判断是否获取切换异常信令；在判定获取所述切换异常信令后，判断是否存在与所述切换异常信令匹配的网络制式；在判定存在与所述切换异常信令匹配的网络制式时，切换至所述匹配的网络制式。通过本发明的技术方案，在保证终端侧始终具有虚拟专用拨号网的功能的同时，在不能介入虚拟专用拨号网时，仍然可以采用其他网络制式进行业务数据的交互。

Description

网络制式的控制方法、***和终端
本申请要求于2015年06月19日提交中国专利局，申请号为201510345420.8、发明名称为“网络制式的控制方法、***和终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及终端技术领域，具体而言，涉及一种网络制式的控制方法、一种网络制式的控制***和一种终端。
背景技术
在相关技术中，为了保护终端用户的数据安全，通信工程师们在终端开发了支持3G/4G等高速移动数据网络的虚拟专用拨号网(Virtual Private Dial-Up Networks，简称VPDN)，但是终端从不支持4G通道VPDN的城市漫游到支持4G通道VPDN的城市，无法实现VPDN通道的优选切换；由于定制版的终端将完全禁用4G通道，如果用户想使用非VPDN业务，也将无法使用高速的4G通道，严重影响用户体验。
因此，如何设计一种能够根据VPDN业务的连接异常确定网络制式的控制方案成为亟待解决的技术问题。
发明内容
本发明正是基于上述技术问题至少之一，提出了一种新的能够根据VPDN业务的连接异常确定网络制式的控制方案，通过判断请求切换至4G网络下的虚拟专用拨号网的过程是否产生切换异常信令，并根据切换异常信令切换至匹配的网络制式。
有鉴于此，根据本发明的第一方面的实施例，提出了一种网络制式的控制方法，包括：向基站发送第一切换信令，以请求切换至4G网络下的虚拟专用拨号网；在发送所述第一切换信令后的指定时间内，判断是否获取切换异常信令；在判定获取所述切换异常信令后，判断是否存在与所述切换异常信令匹配 的网络制式；在判定存在与所述切换异常信令匹配的网络制式时，切换至所述匹配的网络制式。
在该技术方案中，通过判断请求切换至4G网络下的虚拟专用拨号网的过程是否产生切换异常信令，并根据切换异常信令切换至匹配的网络制式。
具体地，在终端请求切换至虚拟专用拨号网的指定时间内，如果获取基站反馈的切换异常信令，则确定上述基站所在的核心网络不支持虚拟专用拨号网对应的网络制式，因此，快速对切换异常信令进行匹配处理，以确定不同切换异常信令对应的网络制式。
其中，切换异常信令对应的网络制式包括：如LTE(Long Term Evolution，长期演进)网络制式、EHRPD(Evoluted High Rate Packet Date，演进的高速分组)网络制式、EVDO(Evolution Data Only，演进数据)网络制式和CDMA(Code Division Multiple Access，码分多址)20001X网络制式等。
在上述技术方案中，优选地，在发送请求切换至4G网络的虚拟专用拨号网的第一切换信令前，包括：向基站发送请求连接至所述4G网络的第二切换信令；在获取所述第二切换信令对应的确认连接至所述4G网络的反馈信令后，连接至所述4G网络。
在该技术方案中，通过创建4G网络连接，奠定了接入虚拟专用拨号网的通信信道，提高了本申请技术方案的可靠性。
在上述技术方案中，优选地，在发送请求切换至4G网络的虚拟专用拨号网的第一切换信令前，还包括：创建并存储包括所述切换异常信令与网络制式的对应关系的映射表，以根据所述映射表判断是否存在与所述切换异常信令匹配的网络制式。
在该技术方案中，通过创建并存储包括切换异常信令与网络制式的对应关系的映射表，提高了对接入虚拟专用拨号网时的异常情况进行处理的效率，也即根据映射表快速确定接入异常指令对应的网络制式。
在上述技术方案中，优选地，所述切换异常信令包括在链路控制协议协商阶段产生的第一类拒绝信令；或在EAP-AKA鉴权阶段产生的第二类拒绝信令；或在VSNCP(Vendor Specific Network Control Protocol，设备商设定网络控制协议)协议阶段产生的第三类拒绝信令。
在该技术方案中，通过设定切换异常信令包括在链路控制协议协商阶段产生的第一类拒绝信令，或在EAP-AKA鉴权阶段产生的第二类拒绝信令，或在VSNCP协议阶段产生的第三类拒绝信令，提供了对接入异常的具体判定依据，进而提示了网络制式切换的准确性。
在上述技术方案中，优选地，在判定获取所述切换异常信令后，判断是否存在与所述切换异常信令匹配的网络制式，包括：在判定未获取所述切换异常信令时，切换至所述4G网络下的所述虚拟专用拨号网对应的网络制式。
在该技术方案中，通过在判定未获取切换异常指令时，切换至虚拟专用拨号网对应的网络制式，提高了数据交互的安全性和效率。
根据本发明的第二方面的实施例，提出了一种网络制式的控制***，包括：发送单元，用于向基站发送第一切换信令，以请求切换至4G网络下的虚拟专用拨号网；判断单元，用于在发送所述第一切换信令后的指定时间内，判断是否获取切换异常信令；所述判断单元还用于，在判定获取所述切换异常信令后，判断是否存在与所述切换异常信令匹配的网络制式；所述网络制式的控制***还包括：切换单元，用于在判定存在与所述切换异常信令匹配的网络制式时，切换至所述匹配的网络制式。
在该技术方案中，通过判断请求切换至4G网络下的虚拟专用拨号网的过程是否产生切换异常信令，并根据切换异常信令切换至匹配的网络制式。
具体地，在终端请求切换至虚拟专用拨号网的指定时间内，如果获取基站反馈的切换异常信令，则确定上述基站所在的核心网络不支持虚拟专用拨号网对应的网络制式，因此，快速对切换异常信令进行匹配处理，以确定不同切换异常信令对应的网络制式。
其中，切换异常信令对应的网络制式包括：如LTE(Long Term Evolution，长期演进)网络制式、EHRPD(Evoluted High Rate Packet Date，演进的高速分组)网络制式、EVDO(Evolution Data Only，演进数据)网络制式和CDMA(Code Division Multiple Access，码分多址)20001X网络制式等。
在上述技术方案中，优选地，所述发送单元还用于：向基站发送请求连接至所述4G网络的第二切换信令；所述切换单元还用于：在获取所述第二切换信令对应的确认连接至所述4G网络的反馈信令后，连接至所述4G网络。
在该技术方案中，通过创建4G网络连接，奠定了接入虚拟专用拨号网的通信信道，提高了本申请技术方案的可靠性。
在上述技术方案中，优选地，还包括：创建单元，用于创建并存储包括所述切换异常信令与网络制式的对应关系的映射表，以根据所述映射表判断是否存在与所述切换异常信令匹配的网络制式。
在该技术方案中，通过创建并存储包括切换异常信令与网络制式的对应关系的映射表，提高了对接入虚拟专用拨号网时的异常情况进行处理的效率，也即根据映射表快速确定接入异常指令对应的网络制式。
在上述技术方案中，优选地，所述切换异常信令包括在链路控制协议协商阶段产生的第一类拒绝信令；或在EAP-AKA鉴权阶段产生的第二类拒绝信令；或在VSNCP协议阶段产生的第三类拒绝信令。
在该技术方案中，通过设定切换异常信令包括在链路控制协议协商阶段产生的第一类拒绝信令，或在EAP-AKA鉴权阶段产生的第二类拒绝信令，或在VSNCP协议阶段产生的第三类拒绝信令，提供了对接入异常的具体判定依据，进而提示了网络制式切换的准确性。
在上述技术方案中，优选地，所述切换单元还用于：在判定未获取所述切换异常信令时，切换至所述4G网络下的所述虚拟专用拨号网对应的网络制式。
在该技术方案中，通过在判定未获取切换异常指令时，切换至虚拟专用拨号网对应的网络制式，提高了数据交互的安全性和效率。
根据本发明的第三发明的实施例，还提出一种终端，包括处理器和存储器，其中，所述存储器中存储一组程序代码，且所述处理器用于调用所述存储器中存储的程序代码，用于执行以下操作：
向基站发送第一切换信令，以请求切换至4G网络下的虚拟专用拨号网；在发送所述第一切换信令后的指定时间内，判断是否获取切换异常信令；在判定获取所述切换异常信令后，判断是否存在与所述切换异常信令匹配的网络制式；在判定存在与所述切换异常信令匹配的网络制式时，切换至所述匹配的网络制式。
在上述技术方案中，优选地，所述处理器在发送请求切换至4G网络的虚拟专用拨号网的第一切换信令前，还包括：向基站发送请求连接至所述4G网 络的第二切换信令；在获取所述第二切换信令对应的确认连接至所述4G网络的反馈信令后，连接至所述4G网络。
在上述技术方案中，优选地，所述处理器在发送请求切换至4G网络的虚拟专用拨号网的第一切换信令前，还包括：创建并存储包括所述切换异常信令与网络制式的对应关系的映射表，以根据所述映射表判断是否存在与所述切换异常信令匹配的网络制式。
在上述技术方案中，优选地，所述切换异常信令包括在链路控制协议协商阶段产生的第一类拒绝信令；或在EAP-AKA鉴权阶段产生的第二类拒绝信令；或在VSNCP协议阶段产生的第三类拒绝信令。
在上述技术方案中，优选地，所述处理器在判定获取所述切换异常信令后，判断是否存在与所述切换异常信令匹配的网络制式，包括：在判定未获取所述切换异常信令时，切换至所述4G网络下的所述虚拟专用拨号网对应的网络制式。
通过以上技术方案，通过判断请求切换至4G网络下的虚拟专用拨号网的过程是否产生切换异常信令，并根据切换异常信令切换至匹配的网络制式。
附图说明
图1示出了根据本发明的实施例的网络制式的控制方法的流程示意图；
图2示出了根据本发明的实施例的网络制式的控制***的示意框图；
图3示出了根据本发明的实施例的终端的示意框图；
图4示出了根据本发明的另一实施例的终端的示意框图。
具体实施方式
为了能够更清楚地理解本发明的上述目的、特征和优点，下面结合附图和具体实施方式对本发明进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是，本发明还可以采用其他不同于在此描述的其他方式来实施，因此，本发明的保护范 围并不受下面公开的具体实施例的限制。
图1示出了根据本发明的实施例的网络制式的控制方法的流程示意图。
如图1所示，根据本发明的实施例的网络制式的控制方法，包括：步骤102，向基站发送第一切换信令，以请求切换至4G网络下的虚拟专用拨号网；步骤104，在发送所述第一切换信令后的指定时间内，判断是否获取切换异常信令；步骤106，在判定获取所述切换异常信令后，判断是否存在与所述切换异常信令匹配的网络制式；步骤108，在判定存在与所述切换异常信令匹配的网络制式时，切换至所述匹配的网络制式。
在该技术方案中，通过判断请求切换至4G网络下的虚拟专用拨号网的过程是否产生切换异常信令，并根据切换异常信令切换至匹配的网络制式。
具体地，在终端请求切换至虚拟专用拨号网的指定时间内，如果获取基站反馈的切换异常信令，则确定上述基站所在的核心网络不支持虚拟专用拨号网对应的网络制式，因此，快速对切换异常信令进行匹配处理，以确定不同切换异常信令对应的网络制式。
其中，切换异常信令对应的网络制式包括：如LTE(Long Term Evolution，长期演进)网络制式、EHRPD(Evoluted High Rate Packet Date，演进的高速分组)网络制式、EVDO(Evolution Data Only，演进数据)网络制式和CDMA(Code Division Multiple Access，码分多址)20001X网络制式等。
在上述技术方案中，优选地，在发送请求切换至4G网络的虚拟专用拨号网的第一切换信令前，包括：向基站发送请求连接至所述4G网络的第二切换信令；在获取所述第二切换信令对应的确认连接至所述4G网络的反馈信令后，连接至所述4G网络。
在该技术方案中，通过创建4G网络连接，奠定了接入虚拟专用拨号网的通信信道，提高了本申请技术方案的可靠性。
在上述技术方案中，优选地，在发送请求切换至4G网络的虚拟专用拨号网的第一切换信令前，还包括：创建并存储包括所述切换异常信令与网络制式的对应关系的映射表，以根据所述映射表判断是否存在与所述切换异常信令匹配的网络制式。
在该技术方案中，通过创建并存储包括切换异常信令与网络制式的对应关 系的映射表，提高了对接入虚拟专用拨号网时的异常情况进行处理的效率，也即根据映射表快速确定接入异常指令对应的网络制式。
在上述技术方案中，优选地，所述切换异常信令包括在链路控制协议协商阶段产生的第一类拒绝信令；或在EAP-AKA鉴权阶段产生的第二类拒绝信令；或在VSNCP(Vendor Specific Network Control Protocol，设备商设定网络控制协议)协议阶段产生的第三类拒绝信令。
在该技术方案中，通过设定切换异常信令包括在链路控制协议协商阶段产生的第一类拒绝信令，或在EAP-AKA鉴权阶段产生的第二类拒绝信令，或在VSNCP协议阶段产生的第三类拒绝信令，提供了对接入异常的具体判定依据，进而提示了网络制式切换的准确性。
在上述技术方案中，优选地，在判定获取所述切换异常信令后，判断是否存在与所述切换异常信令匹配的网络制式，包括：在判定未获取所述切换异常信令时，切换至所述4G网络下的所述虚拟专用拨号网对应的网络制式。
在该技术方案中，通过在判定未获取切换异常指令时，切换至虚拟专用拨号网对应的网络制式，提高了数据交互的安全性和效率。
图2示出了根据本发明的实施例的网络制式的控制***的示意框图。
如图2所示，根据本发明的实施例的网络制式的控制***200，包括：发送单元202，用于向基站发送第一切换信令，以请求切换至4G网络下的虚拟专用拨号网；判断单元204，用于在发送所述第一切换信令后的指定时间内，判断是否获取切换异常信令；所述判断单元204还用于，在判定获取所述切换异常信令后，判断是否存在与所述切换异常信令匹配的网络制式；所述网络制式的控制***200还包括：切换单元206，用于在判定存在与所述切换异常信令匹配的网络制式时，切换至所述匹配的网络制式。
在该技术方案中，通过判断请求切换至4G网络下的虚拟专用拨号网的过程是否产生切换异常信令，并根据切换异常信令切换至匹配的网络制式。
具体地，在终端请求切换至虚拟专用拨号网的指定时间内，如果获取基站反馈的切换异常信令，则确定上述基站所在的核心网络不支持虚拟专用拨号网对应的网络制式，因此，快速对切换异常信令进行匹配处理，以确定不同切换异常信令对应的网络制式。
其中，切换异常信令对应的网络制式包括：如LTE(Long Term Evolution，长期演进)网络制式、EHRPD(Evoluted High Rate Packet Date，演进的高速分组)网络制式、EVDO(Evolution Data Only，演进数据)网络制式和CDMA(Code Division Multiple Access，码分多址)20001X网络制式等。
在上述技术方案中，优选地，所述发送单元202还用于：向基站发送请求连接至所述4G网络的第二切换信令；所述切换单元206还用于：在获取所述第二切换信令对应的确认连接至所述4G网络的反馈信令后，连接至所述4G网络。
在该技术方案中，通过创建4G网络连接，奠定了接入虚拟专用拨号网的通信信道，提高了本申请技术方案的可靠性。
在上述技术方案中，优选地，还包括：创建单元208，用于创建并存储包括所述切换异常信令与网络制式的对应关系的映射表，以根据所述映射表判断是否存在与所述切换异常信令匹配的网络制式。
在该技术方案中，通过创建并存储包括切换异常信令与网络制式的对应关系的映射表，提高了对接入虚拟专用拨号网时的异常情况进行处理的效率，也即根据映射表快速确定接入异常指令对应的网络制式。
在上述技术方案中，优选地，所述切换异常信令包括在链路控制协议协商阶段产生的第一类拒绝信令；或在EAP-AKA鉴权阶段产生的第二类拒绝信令；或在VSNCP协议阶段产生的第三类拒绝信令。
在该技术方案中，通过设定切换异常信令包括在链路控制协议协商阶段产生的第一类拒绝信令，或在EAP-AKA鉴权阶段产生的第二类拒绝信令，或在VSNCP协议阶段产生的第三类拒绝信令，提供了对接入异常的具体判定依据，进而提示了网络制式切换的准确性。表1以EHRPD网络制式创建过程中的接入异常信令进行说明，其中，异常类型对应于指定的接入异常信令，而根据预存储的映射表确定不同异常类型对应的网络制式，并控制终端快速切换至所述网络制式。
表1
Figure PCTCN2015085875-appb-000001
在上述技术方案中，优选地，所述切换单元206还用于：在判定未获取所述切换异常信令时，切换至所述4G网络下的所述虚拟专用拨号网对应的网络制式。
在该技术方案中，通过在判定未获取切换异常指令时，切换至虚拟专用拨 号网对应的网络制式，提高了数据交互的安全性和效率。
图3示出了根据本发明的实施例的终端的示意框图。
如图3所示，根据本发明的实施例的终端300包括：如上述任一项技术方案所述的网络制式的控制***200。
图4示出了根据本发明的另一实施例的终端的示意框图。
如图4所示，所述终端可以包括：至少一个处理器41，例如CPU，至少一个通信总线42以及存储器43；通信总线42用于实现这些组件之间的连接通信；存储器43可以是高速RAM存储器，也可以是非易失性存储器(non-volatile memory)，例如至少一个磁盘存储器。存储器43中存储一组程序代码，且处理器41用于调用存储器43中存储的程序代码，执行以下操作：
向基站发送第一切换信令，以请求切换至4G网络下的虚拟专用拨号网；
在发送所述第一切换信令后的指定时间内，判断是否获取切换异常信令；
在判定获取所述切换异常信令后，判断是否存在与所述切换异常信令匹配的网络制式；
在判定存在与所述切换异常信令匹配的网络制式时，切换至所述匹配的网络制式。
其中，所述处理器41在发送请求切换至4G网络的虚拟专用拨号网的第一切换信令前，还包括：
向基站发送请求连接至所述4G网络的第二切换信令；
在获取所述第二切换信令对应的确认连接至所述4G网络的反馈信令后，连接至所述4G网络。
其中，所述处理器41在发送请求切换至4G网络的虚拟专用拨号网的第一切换信令前，还包括：
创建并存储包括所述切换异常信令与网络制式的对应关系的映射表，以根据所述映射表判断是否存在与所述切换异常信令匹配的网络制式。
其中，所述切换异常信令包括在链路控制协议协商阶段产生的第一类拒绝信令；或在EAP-AKA鉴权阶段产生的第二类拒绝信令；或在VSNCP协议阶段产生的第三类拒绝信令。
其中，所述处理器41在判定获取所述切换异常信令后，判断是否存在与 所述切换异常信令匹配的网络制式，包括：
在判定未获取所述切换异常信令时，切换至所述4G网络下的所述虚拟专用拨号网对应的网络制式。
以上结合附图详细说明了本发明的技术方案，考虑到如何设计一种能够根据VPDN业务的连接异常确定网络制式的控制方案的技术问题。因此，本发明提出了一种新的便捷地、更为安全的网络制式的控制方案和一种终端，通过判断请求切换至4G网络下的虚拟专用拨号网的过程是否产生切换异常信令，并根据切换异常信令切换至匹配的网络制式。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (15)

  1. 一种网络制式的控制方法，用于终端侧，其特征在于，包括：
    向基站发送第一切换信令，以请求切换至4G网络下的虚拟专用拨号网；
    在发送所述第一切换信令后的指定时间内，判断是否获取切换异常信令；
    在判定获取所述切换异常信令后，判断是否存在与所述切换异常信令匹配的网络制式；
    在判定存在与所述切换异常信令匹配的网络制式时，切换至所述匹配的网络制式。
  2. 根据权利要求1所述的网络制式的控制方法，其特征在于，在发送请求切换至4G网络的虚拟专用拨号网的第一切换信令前，包括：
    向基站发送请求连接至所述4G网络的第二切换信令；
    在获取所述第二切换信令对应的确认连接至所述4G网络的反馈信令后，连接至所述4G网络。
  3. 根据权利要求2所述的网络制式的控制方法，其特征在于，在发送请求切换至4G网络的虚拟专用拨号网的第一切换信令前，还包括：
    创建并存储包括所述切换异常信令与网络制式的对应关系的映射表，以根据所述映射表判断是否存在与所述切换异常信令匹配的网络制式。
  4. 根据权利要求1至3中任一项所述的网络制式的控制方法，其特征在于，所述切换异常信令包括在链路控制协议协商阶段产生的第一类拒绝信令；
    或在EAP-AKA鉴权阶段产生的第二类拒绝信令；
    或在VSNCP协议阶段产生的第三类拒绝信令。
  5. 根据权利要求1至3中任一项所述的网络制式的控制方法，其特征在于，在判定获取所述切换异常信令后，判断是否存在与所述切换异常信令匹配的网络制式，包括：
    在判定未获取所述切换异常信令时，切换至所述4G网络下的所述虚拟专用拨号网对应的网络制式。
  6. 一种网络制式的控制***，用于终端侧，其特征在于，包括：
    发送单元，用于向基站发送第一切换信令，以请求切换至4G网络下的虚 拟专用拨号网；
    判断单元，用于在发送所述第一切换信令后的指定时间内，判断是否获取切换异常信令；
    所述判断单元还用于，在判定获取所述切换异常信令后，判断是否存在与所述切换异常信令匹配的网络制式；
    所述网络制式的控制***还包括：
    切换单元，用于在判定存在与所述切换异常信令匹配的网络制式时，切换至所述匹配的网络制式。
  7. 根据权利要求6所述的网络制式的控制***，其特征在于，所述发送单元还用于：
    向基站发送请求连接至所述4G网络的第二切换信令；
    所述切换单元还用于：
    在获取所述第二切换信令对应的确认连接至所述4G网络的反馈信令后，连接至所述4G网络。
  8. 根据权利要求7所述的网络制式的控制***，其特征在于，还包括：
    创建单元，用于创建并存储包括所述切换异常信令与网络制式的对应关系的映射表，以根据所述映射表判断是否存在与所述切换异常信令匹配的网络制式。
  9. 根据权利要求6至8中任一项所述的网络制式的控制***，其特征在于，所述切换异常信令包括在链路控制协议协商阶段产生的第一类拒绝信令；
    或在EAP-AKA鉴权阶段产生的第二类拒绝信令；
    或在VSNCP协议阶段产生的第三类拒绝信令。
  10. 根据权利要求6至8中任一项所述的网络制式的控制***，其特征在于，所述切换单元还用于：
    在判定未获取所述切换异常信令时，切换至所述4G网络下的所述虚拟专用拨号网对应的网络制式。
  11. 一种终端，其特征在于，包括处理器和存储器，其中，所述存储器中存储一组程序代码，且所述处理器用于调用所述存储器中存储的程序代码，用于执行以下操作：
    向基站发送第一切换信令，以请求切换至4G网络下的虚拟专用拨号网；
    在发送所述第一切换信令后的指定时间内，判断是否获取切换异常信令；
    在判定获取所述切换异常信令后，判断是否存在与所述切换异常信令匹配的网络制式；
    在判定存在与所述切换异常信令匹配的网络制式时，切换至所述匹配的网络制式。
  12. 根据权利要求11所述的终端，其特征在于，所述处理器在发送请求切换至4G网络的虚拟专用拨号网的第一切换信令前，还包括：
    向基站发送请求连接至所述4G网络的第二切换信令；
    在获取所述第二切换信令对应的确认连接至所述4G网络的反馈信令后，连接至所述4G网络。
  13. 根据权利要求12所述的终端，其特征在于，所述处理器在发送请求切换至4G网络的虚拟专用拨号网的第一切换信令前，还包括：
    创建并存储包括所述切换异常信令与网络制式的对应关系的映射表，以根据所述映射表判断是否存在与所述切换异常信令匹配的网络制式。
  14. 根据权利要求11至13中任一项所述的终端，其特征在于，所述切换异常信令包括在链路控制协议协商阶段产生的第一类拒绝信令；
    或在EAP-AKA鉴权阶段产生的第二类拒绝信令；
    或在VSNCP协议阶段产生的第三类拒绝信令。
  15. 根据权利要求11至13中任一项所述的终端，其特征在于，所述处理器在判定获取所述切换异常信令后，判断是否存在与所述切换异常信令匹配的网络制式，包括：
    在判定未获取所述切换异常信令时，切换至所述4G网络下的所述虚拟专用拨号网对应的网络制式。
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