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User terminal conversation state control method and device and user terminal

A technology of call state and user terminal, applied in the field of communication, can solve the problems of loss of signaling, asynchronous state of user terminal and network terminal, abnormal call, etc., to save wireless resources, reduce the frequency of inquiry, and reduce signaling overhead. Effect

Active Publication Date: 2018-07-10
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, if the SRVCC handover occurs during the signaling interaction between the user terminal and the network end, it may easily lead to the loss of the interacting signaling. At this time, the state of the user terminal and the network end may not be synchronized, and call abnormalities may occur.

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  • User terminal conversation state control method and device and user terminal
  • User terminal conversation state control method and device and user terminal
  • User terminal conversation state control method and device and user terminal

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Embodiment Construction

[0027] In the existing LTE network, audio and video calls are provided through VoLTE technology. However, due to problems such as incomplete coverage or poor signal in the LTE network, if you move to an LTE coverage blind spot during a VoLTE call, you usually need to switch to 2G / 3G through SRVCC. network.

[0028] However, if the SRVCC handover occurs during signaling interaction between the user terminal and the network end, it is easy to cause loss of the interacting signaling, and thus a problem that the state of the user terminal and the network end may not be synchronized may occur.

[0029] The following takes the signaling interaction between the user terminal and the network as an example of a call hold (HOLD) state change application, combined with figure 1 and figure 2 for further clarification.

[0030] refer to figure 1 , figure 1 It is a data flow diagram in the prior art for implementing a call hold state change application.

[0031] In step S101 , the fir...

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Abstract

The invention provides a user terminal conversation state control method and device and a user terminal. The method comprises the following steps that a state information inquiring application is transmitted to a network terminal after completion of SRVCC switching so as to inquire the network terminal state of each path of conversation on the network terminal; the feedback transmitted by the network terminal for responding to the state information inquiring application is received, wherein the feedback includes the network terminal state of each path of conversation; and the terminal state ofeach path of conversation on the user terminal is controlled so that the terminal state and the network terminal state are enabled to be synchronized. According to the scheme, the terminal state andthe network terminal state of the user terminal can be synchronized so that the influence caused by SRVCC switching can be eliminated and the conversation abnormity can be effectively avoided.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method and device for controlling a call state of a user terminal, and a user terminal. Background technique [0002] In the existing Long Term Evolution (Long Term Evolution, LTE) network, not only high-speed data services are provided, but also high-quality audio and video calls are provided, and the latter is realized through a voice call (Voice over LTE, VoLTE) technology. [0003] Due to problems such as incomplete coverage or poor signal of the LTE network, if you move to a blind area of ​​LTE coverage during a VoLTE call, only 2G / 3G network coverage is available at this time. In order to maintain the continuity of the call and avoid abnormal interruption of the call, it is usually necessary The business continuity (Single Radio Voice Call Continuity, SRVCC) solution switches the call to the 2G / 3G network. [0004] However, if the SRVCC handover occurs d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/00H04W56/00
CPCH04W36/0011H04W56/00
Inventor 祝定静金逸
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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