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Before-ringing single radio voice call continuity method and device

A call continuity, dual-mode and single-standby technology, applied in the field of communications, can solve problems such as inability to implement

Active Publication Date: 2017-06-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The present invention provides a dual-mode single-standby wireless voice call continuity method, device and SCC AS before ringing, so as to at least solve the problem that the bSRVCC process in the 3GPP related specifications is not implementable

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  • Before-ringing single radio voice call continuity method and device
  • Before-ringing single radio voice call continuity method and device
  • Before-ringing single radio voice call continuity method and device

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Embodiment Construction

[0054] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0055] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence.

[0056] In this embodiment, a dual-mode single-standby wireless voice call continuity method before ringing is provided, Figure 4 It is a flowchart of a dual-mode single-standby wireless voice call continuity method before ringing according to an embodiment of the present invention, as Figure 4 As shown, the process includes the following steps:

[0057] Step S410, the SCC AS receives the bSRVCC switching request from the calling terminal;

[0058] S...

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Abstract

The invention provides a before-ringing single radio voice call continuity method and device. The method comprises steps that a bSRVCC switching request of a calling terminal is received by an SCC AS; whether a first message sent by a called terminal and containing Answer SDP is received before reception of the bSRVCC switching request is determined by the SCC AS; if not, the bSRVCC switching request is cached by the SCC AS, a pre-determined message sent by the called terminal and containing no Answer SDP is ended at the SCC AS before the first message is received. The method is advantaged in that a problem of unfeasibility of a bSRVCC process in 3GPP relevant standards can be solved, and a feasible bSRVCC process is provided.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a dual-mode single-standby wireless voice call continuity method, device and SCC AS before ringing. Background technique [0002] Dual-mode single-standby wireless voice call continuity (Single Radio Voice Call Continuity, referred to as SRVCC) is a third-generation mobile communication partnership (3GPP) based on IP Multimedia Subsystem (IP Multimedia Subsystem, referred to as IMS). The business (VoLTE) continuity solution is mainly to solve the problem when a single-radio user equipment (User Equipment, referred to as UE) is in the long-term evolution (Long Time Evolution, referred to as LTE) network and the second generation mobile communication (2G) / A set of system solutions proposed to ensure the continuity of voice calls when moving between 3G Circuit Switch (CS) domain networks in the third generation of mobile communication is the core key technology of VoLTE techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/00H04L29/06
CPCH04L65/1016H04L65/1083H04W36/0066H04W36/00226H04L65/1069H04L65/1104H04L65/1095
Inventor 高扬穆凌江倪明
Owner ZTE CORP