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Method and device for session transfer between access networks

A technology for session transfer and network access. It is applied in network data management, electrical components, wireless communication, etc., and can solve problems such as poor end-user perception.

Active Publication Date: 2015-12-16
NOKIA TECH OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of business interruption is very bad for the end user perception

Method used

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  • Method and device for session transfer between access networks
  • Method and device for session transfer between access networks
  • Method and device for session transfer between access networks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] figure 1 Provides an overview of SRVCC procedures, eg from E-UTRAN to GERAN.

[0020] figure 1 The components shown include in particular the following:

[0021] - UE-A (hereinafter also referred to as UE): a user equipment UE supporting SRVCC;

[0022] - Source MME: Mobility Management Equipment MME supporting SRVCC (in Evolved Packet Core EPC),

[0023] -MSC server / MGW: mobile switching center server / media gateway, wherein the MSC server corresponds to the MSC server enhanced by SRVCC, especially the MSC server that calls the session transfer procedure and coordinates the HO procedure and the session transfer procedure,

[0024] - Target MSC: MSC controlling the target BSS (if the MSC server controls the target BSS, the functions of the MSC server are integrated with those of the target MSC),

[0025] - Target BSS: Target GERAN Base Station Subsystem,

[0026] -MGCF: IMS equipment, corresponding to the media gateway control function,

[0027] -I-CSCF: IMS equipm...

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PUM

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Abstract

An object of the present invention is a method for session transfer of a user equipment UE between access networks, said method comprising inserting in a signaling path a business continuity application server anchoring said session in IMS, said The methods include: - inserting the UE located in the visited PLMN? The service continuity application server V-SCC-AS in the V-PLMN, the UE roams in the V-PLMN.

Description

technical field [0001] The present invention generally relates to mobile communication networks and systems. Background technique [0002] Detailed descriptions of mobile communication networks and systems can be found in the literature, especially in technical specifications published by standardization organizations such as 3GPP (Third Generation Partnership Project). [0003] Single Radio Voice Call Continuity (SingleRadioVoiceCallContinuity) SRVCC is specified in the 3GPPTS23.216 specification. For calls anchored at IP Multimedia Subsystem IMS across packet-switched PS access and circuit-switched CS access, SRVCC provides voice call continuity between into the network during a send / receive. [0004] For CS calls anchored in IP Multimedia Subsystem IMS, 3GPPTS23.216 specifies SRVCC between E-UTRAN access and 3GPP2 1xCS, and between E-UTRAN access and 3GPP UTRAN / GERAN access SRVCC, and SRVCC between UTRAN (HSPA) access and 3GPP UTRAN / GERAN access. [0005] The VCC (or ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/14
CPCH04W8/26H04W36/00226H04W8/08
Inventor 尼古拉斯·德冯劳伦·蒂博
Owner NOKIA TECH OY