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A single wireless voice call continuity processing method and system

A technology of call continuity and wireless voice, which is applied in the field of communication, and can solve problems such as handover failure, single wireless voice call continuity, and failure to notify the base station in time

Active Publication Date: 2016-08-17
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Embodiments of the present invention provide a single wireless voice call continuity processing method and system to solve the problem that after the SRVCC capability information of the MME or the SRVCC capability information of the UE is changed, the base station cannot be notified in time, resulting in an incorrect judgment of the base station, resulting in handover failure The problem

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  • A single wireless voice call continuity processing method and system
  • A single wireless voice call continuity processing method and system
  • A single wireless voice call continuity processing method and system

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Embodiment 1

[0059] The SRVCC solution mainly solves the problems existing in deploying voice services on the LTE network. Under the LTE network, terminals use IMS-based Voice over LTE to establish voice services; The business will face the problem of whether the voice can continue after leaving the coverage of LTE. At this time, SRVCC can switch the voice to the circuit domain, so as to ensure the uninterrupted voice call.

[0060] The SRVCC decision is made on the eNB side. When a user requests, the UE will pass its initial SRVCC capability information to the MME during the attach process, and the MME will synthesize its own SRVCC capability information and the UE's SRVCC capability information to obtain a comprehensive SRVCC capability information, and then notify the eNB of the comprehensive SRVCC capability information, and the eNB performs handover judgment. Only when both the MME and the UE support the SRVCC capability, the eNB can initiate an SRVCC handover request for the UE.

[0...

Embodiment 2

[0075] refer to figure 2 , which shows a flow chart of a single wireless voice call continuity processing method proposed in Embodiment 2 of the present invention, the method may include:

[0076] Step 200, when the MME establishes a connection with the base station, it sends an S1 establishment response message to the base station, and the initial SRVCC capability information of the MME is added to the S1 establishment response message.

[0077] In the embodiment of the present invention, when the MME establishes a connection with the base station, the MME can send an S1SETUP RESPONSE message to the base station. At this time, the MME can add its own initial SRVCC capability information to the S1SETUP RESPONSE message, so that the MME's initial SRVCC The capability information is notified to the base station.

[0078] For example, the embodiment of the present invention may add a "SRVCC operation possible (SRVCC operation possibility)" field to the S1SETUP RESPONSE message,...

Embodiment 3

[0184] refer to image 3 , shows a structural block diagram of a single wireless voice call continuity processing system proposed in Embodiment 3 of the present invention, the system may include: a sending module 300, a first notification module 302, a receiving module 304, an extracting module 306 and The second notification module 308 .

[0185] in,

[0186] The sending module 300 is configured to send an S1 establishment response message to the base station when the MME establishes a connection with the base station, and the initial SRVCC capability information of the MME is added to the S1 establishment response message;

[0187] The first notification module 302 is configured to analyze and obtain the initial SRVCC capability information of the user equipment, generate integrated SRVCC capability information from the initial SRVCC capability information of the user equipment and the initial SRVCC capability information of the MME, and notify the integrated SRVCC capabili...

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Abstract

The embodiment of the invention provides a single radio voice call continuity (SRVCC) processing method and system to solve the problem that after SRVCC capability information of an MME (Mobility Management Entity) or UE (User Equipment) is changed, a base can not be timely notified, so that wrong judgment of the base can be caused, and the handover is unsuccessful. According to the method and the system provided by the embodiment of the invention, when the SRVCC capability information of the MME and / or the UE is changed, and the base can be timely notified about the changed information, so that the base can judge whether an SRVCC handover request needs to be initiated or not currently according to the changed SRVCC capability information of the MME and the UE, thereby avoiding wrong judgment of the base and improving the success rate of the handover.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of communication, and in particular, to a method and system for processing continuity of a single wireless voice call. Background technique [0002] Based on the existing GSM / EDGE Radio Access Network (GSM EDGE Radio Access Network, GERAN) and UMTS Terrestrial Radio Access Network (UMTS Terrestrial Radio Access Network, UTRAN), 3GPP launched the Long Term Evolution (LTE ) and system architecture evolution (System Architecture Evolution, SAE) two major programs of standardization. [0003] In the initial stage of LTE network construction, its coverage is limited. When a user moves to an area with weak LTE signal but good GERAN / UTRAN network signal coverage during a voice call using the LTE network, in order to ensure the continuity of the voice call ( Voice Call Continuity, VCC), it is necessary to switch the call route from LTE to GERAN / UTRAN. Since there is currently no terminal ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/16H04W8/02H04W36/00
Inventor 王晓峰
Owner DATANG MOBILE COMM EQUIP CO LTD
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