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A method and device for releasing resources after a network switch occurs in a terminal in volte

A network switching and post-release technology, applied in connection management, wireless communication, electrical components, etc., can solve problems such as increasing network burden and increasing VoLTE network element resource occupation time.

Active Publication Date: 2021-02-23
ZTE CORP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0008] The technical problem to be solved according to the technical solution provided by the embodiment of the present invention is to solve the problem that in the VoLTE network, when the terminal switches over the network during a voice call or a voice call, the terminal does not process the SIP signaling message from the original network and the VoLTE network is added. The resource occupation time of the network element, and the retransmission of SIP signaling by the IMS network element according to the SIP protocol, which increases the burden on the entire network

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  • A method and device for releasing resources after a network switch occurs in a terminal in volte
  • A method and device for releasing resources after a network switch occurs in a terminal in volte
  • A method and device for releasing resources after a network switch occurs in a terminal in volte

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Embodiment Construction

[0038] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described below are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0039] figure 2 It is a block diagram of a method for releasing resources after a network switch occurs in a terminal in VoLTE provided by an embodiment of the present invention, as shown in figure 2 As shown, the steps include:

[0040] Step S201: After the VoLTE voice service of the terminal is switched from the original network to the current network, the IMS network detects whether the terminal has the ability to tear down the original network voice call.

[0041] Specifically, the IMS network sends a detection message to the terminal through the original network. If the IMS network receives a response message from the terminal to reply to the dete...

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Abstract

The present invention discloses a method and device for releasing resources after network switching of a terminal in VoLTE, and relates to the field of VoLTE. Whether the user terminal has the ability to tear down the original network voice call; if the IMS network detects that the user terminal has the ability to tear down the original network voice call, the IMS network will release the original network voice call by sending SIP signaling. Call resources; if the IMS network detects that the user terminal does not have the ability to tear down the original network voice call, the IMS network releases the voice call resources of the original network by not sending or retransmitting SIP signaling. By detecting the ability of the user terminal to tear down the original network voice call, the resource occupation time of the original network voice call on the IMS network element is reduced.

Description

technical field [0001] The present invention relates to the field of voice service (Voice over Long Term Evolution, VoLTE) network based on long-term evolution, and in particular to a method and a device for releasing resources after network switching of a terminal in VoLTE. Background technique [0002] In the VoLTE network, when the fourth generation communication technology (The 4th Generation Mobile Communication Technology, 4G) terminal makes a voice call with the IP Multimedia Subsystem (IP Multimedia Subsystem, IMS) network through the Packet Switching Domain (PS) network , if the terminal undergoes a network switchover, and a voice call occurs with the IMS network through the Circuit Switched Domain (CS) network, the network elements of the IMS network will follow the Session Initiation Protocol (Session Initiation Protocol, SIP). The call is torn down, and SIP signaling messages such as a call release request (ie BYE request) or a failure response are sent to ensure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/06H04W36/14H04W76/32
CPCH04W36/06H04W36/14H04W76/32
Inventor 张朋
Owner ZTE CORP
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