Method and apparatus for implementing voice continuity of conversation

A voice continuity and voice data technology, applied in the field of communication, can solve the problems of IMS voice service interruption, increasing the complexity of Serving/PDNSAEGateway, and IMS network services cannot be used normally, so as to simplify the switching process and ensure continuity.

Active Publication Date: 2008-10-22
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] After years of development, the 2G/3G network can be regarded as a kind of comprehensive coverage to some extent. Due to the difference in the deployment of the SAE/LTE network and the 2G/3G network, and in different networks, mobile communication The difference in the service bearing mechanism causes when UE (User Equipment, user equipment) moves out of the coverage area of ​​the base station of the SAE/LTE network and enters the coverage area of ​​the base station of the 2G/3G network, if the UE has an IMS voice service carried on the SAE/LTE network , the IMS voice service may be interrupted, thereby affecting the continuity of the user's voice service
[0058] In addition, after

Method used

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  • Method and apparatus for implementing voice continuity of conversation
  • Method and apparatus for implementing voice continuity of conversation
  • Method and apparatus for implementing voice continuity of conversation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0115] In this embodiment, the SRV handover between the IP access network supporting VoIP and the 2G / 3G network is taken as an example for illustration.

[0116] When the UE is in the process of network attachment or bearer establishment, the UE reports the SRV capability to the core network, or the SRV capability of the UE can be statically configured in the HSS.

[0117] When both the UE and the network support the process of initiating bearer establishment from the network side, the UE initiates an IMS voice session in the network and triggers the establishment of a dedicated voice bearer, the core network determines that the voice session is an SRV session according to the SRV capability of the UE, and Notify the wireless side that the wireless side may need to send a measurement control message to the UE. The measurement control message may include: a list of neighboring cells that support the PS domain and the CS domain, a list of neighboring cells that only support the P...

Embodiment 2

[0132] In this embodiment, the SRV handover between the SAE / LTE network and the 2G / 3G network is taken as an example for illustration.

[0133] When the UE attaches to the SAE / LTE network, the UE reports the SRV capability to the EPC. At the same time, configure 2G / 3G neighbor cell PS / CS capability information and VoIP voice service capability information on the eNodeB;

[0134] When the UE initiates an IMS session in the SAE / LTE network and triggers the establishment of a dedicated voice bearer, the EPC determines that the session is an SRV session according to the SRV capability of the UE, and notifies the eNodeB;

[0135] The eNodeB may need to send a corresponding measurement control message to the UE. The measurement control message may include: a list of neighbor cells that support PS / CS 2G / 3G, a list that only supports 2G / 3G PS neighbor cells, and a list that only supports 2G / 3G CS neighbor cells;

[0136] UE performs measurement and sends measurement report to eNodeB....

Embodiment 3

[0193] In this embodiment, the SRV handover between the SAE / LTE network and the 2G / 3G network is also taken as an example for illustration.

[0194] The difference from Embodiment 2 is that in this embodiment, according to the 2G / 3G network, the eNodeB is directly configured to give priority to the simulated DTM handover process, and the IMS signaling bearer is transferred to the 2G / 3G PS domain through PS handover, and the PS to the The CS handover transfers the IMS voice bearer to the 2G / 3G CS domain.

[0195] When the UE is attached to the network, the UE reports the SRV capability to the core network or the SRV capability of the UE can be statically configured in the HSS; when the UE initiates an IMS voice session in the network and triggers the establishment of a dedicated bearer, the core network capabilities, determine that the session is an SRV session, and send a message to notify the eNodeB.

[0196] For 2G / 3G networks, eNodeB can be configured to preferentially use...

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Abstract

The invention provides a method for realizing the voice continuity of a session and a device. The method comprises the following steps that: when the switching is needed between a source network and a target network, the technical proposal that the voice continuity is realized on a bearing level can be adopted; if a target network grouping domain does not support VoIP, the signaling bearer of the session is switched to the target network grouping domain, and the voice bearer of the session is switched to a target network circuit domain; a PCC framework is utilized to process a subsequent signaling which is switched from the source network to the target network circuit domain in order that the whole process of the voice continuity keeps transparent to a business network; on the basis of not needing to upgrade and reform the business network, the voice business continuity of the session and the normal use of other business in the business network are ensured; at the same time, when the target network needs to be switched to the source network subsequently, the PS switching from the target network to the source network is utilized to trigger that the voice data and the signaling of the subsequent session are switched back to the source network.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and device for realizing voice continuity of a conversation. Background technique [0002] With the development of SAE / LTE (System Architecture Evolution / Long Term Evolution, System Architecture Evolution / Long Term Evolution) network technology, the SAE / LTE network has covered some urban areas and traffic hot spots, resulting in the current communication network, SAE / LTE network and 2G / 3G (2nd Generation / 3rd Generation, second generation mobile communication technology / third generation mobile communication technology) network coexist. The user who initiated the call may cross two networks during a call. In order to ensure that the user's call is not interrupted, it is necessary to switch between the SAE / LTE network and the 2G / 3G network. [0003] According to different network bearer mechanisms, mobile communication service applications can be divided into the fo...

Claims

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Application Information

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IPC IPC(8): H04Q7/22H04Q7/38H04L12/56H04W36/00
CPCH04W36/0022H04W36/00222H04W36/00226
Inventor 吴晓波派崔斯·赫德张戬王云贵
Owner HUAWEI TECH CO LTD
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