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A method and system for realizing service continuity of single-mode voice conversation

A continuity and service technology, applied in the field of communication, can solve problems such as poor user voice service quality, achieve good user voice service quality, and save network resources

Active Publication Date: 2016-11-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0044] The single-mode session service continuity method implemented by the above method often has poor voice service quality for users

Method used

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  • A method and system for realizing service continuity of single-mode voice conversation
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  • A method and system for realizing service continuity of single-mode voice conversation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] image 3 It is an optimization flowchart of Embodiment 1 of the present invention. UE-1 establishes an IMS voice session with the remote UE through the IMS network on the PS access network, and then the single-mode voice service continuity process occurs. UE-1 accesses the CS network and establishes a CS connection with the MSC Server / MGW. The IMS process is described as follows:

[0084] Step 301, MSC Server initiates a switching request to ATCF in the CS domain, such as sending an "INVITE" call setup message, and carrying the switching number;

[0085] Step 302, the ATCF processes the handover request, establishes a session with the MSC Server, and allocates the AGW, and establishes a media connection between the MGW and the AGW;

[0086] Step 303, the ATCF sends a handover notification message to the SCC AS to notify the SCC AS that a single-mode voice service continuity process has occurred, such as sending an "INVITE" message with a special identifier to indicate...

Embodiment 2

[0107] Figure 4 It is the optimization flowchart of the second embodiment of the present invention. UE-1 establishes an IMS voice session with the remote UE through the IMS network on the PS access network, and then a single-mode voice service continuity process occurs. UE-1 accesses the CS network and establishes a CS connection with the MSC Server / MGW. The IMS process is described as follows:

[0108] Step 401, the MSC Server initiates a handover request to the ATCF in the CS domain, such as sending an "INVITE" call setup message with a handover number;

[0109] Step 402, the ATCF processes the handover request, establishes a session with the MSC Server, and allocates the AGW, and establishes a media connection between the MGW and the AGW;

[0110] Step 403, ATCF sends a handover notification message to the SCC AS to notify the SCC AS that a single-mode voice service continuity process has occurred, such as sending an "INVITE" message with a special identifier to indicate...

Embodiment 3

[0122] Figure 5 It is the optimization flowchart of Embodiment 3 of the present invention. UE-1 establishes an IMS voice session with the remote UE through the IMS network on the PS access network, and then a single-mode voice service continuity process occurs. UE-1 accesses the CS network and establishes a CS connection with the MSC Server / MGW. The IMS process is described as follows:

[0123] Step 501, MSC Server initiates a switching request to ATCF in the CS domain, such as sending an "INVITE" call setup message, and carrying the switching number;

[0124] Step 502, the ATCF processes the handover request, establishes a session with the MSC Server, and allocates the AGW, and establishes a media connection between the MGW and the AGW;

[0125] Step 503, the ATCF sends a handover notification message to the SCC AS to notify the SCC AS that a single-mode voice service continuity process has occurred, such as sending an "INVITE" message with a special identifier to indicate...

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Abstract

The invention discloses a method and a system for realizing the service continuity of a single-mode voice conversation, so as to ensure the improvement of the user's voice service quality and optimize the use of network resources. The method includes: after the access branch signaling paths from the UE to the MSC Server, from the MSC Server to the ATCF, and from the ATCF to the SCC AS, and the media paths from the UE to the MGW, from the MGW to the AGW, and from the AGW to the remote UE are established, Reconstruct the part of the signaling path from MSC Server to SCC AS, and update the part of the media path from MGW to AGW and from AGW to remote UE to directly from MGW to remote UE; or, the access branch signaling path Invariably, the part of the media path from the MGW to the AGW and from the AGW to the remote UE is updated to be directly from the MGW to the remote UE.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and a system for realizing service continuity of a single-mode voice conversation. Background technique [0002] In 2 Generation (2G for short), 3G (3 Generation, 3G for short) mobile communication networks, such as Global System for Mobile Communications (GSM for short), Universal Mobile Telecommunications System (Universal Mobile Telecommunications System, UMTS for short), adopts Circuit Switch (CS for short) mode to provide voice services, and has formed a good coverage. With the development of wireless broadband technology and the development of Internet Protocol (IP) technology, the entire network is evolving towards an all-IP direction. IMS for short) evolution, on the other hand, the wireless access network develops towards packet switching, voice and other services are carried through the packet switching (Packet Switch, PS for short) network, and can directly access I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04W36/00H04W80/10
Inventor 邹常乐徐绍华李振东
Owner ZTE CORP