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Mobile communication method and mobile communication system

A mobile communication system and mobile communication technology, applied in the field of mobile communication methods and mobile communication systems, can solve problems such as wasting MGW#1 resources, and achieve the effect of preventing waste

Active Publication Date: 2013-03-27
NEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] However, due to the image 3 In the procedure shown, MGW#1 is allocated even when the SRVCC improved method cannot be used, such as when UE#1 does not support the SRVCC method, so there is a problem that the resources of MGW#1 are wasted.

Method used

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  • Mobile communication method and mobile communication system
  • Mobile communication method and mobile communication system
  • Mobile communication method and mobile communication system

Examples

Experimental program
Comparison scheme
Effect test

Deformed example 1

[0052] Below, refer to image 3 with Figure 4 , with regard to the mobile communication system according to Modified Example 1 of the first embodiment described above, differences from the mobile communication system of the first embodiment described above will be mainly described.

[0053] First, refer to image 3 , the procedure of IMS registration (Registration) of UE#1 in the mobile communication system according to Modification 1 will be described.

[0054] Such as image 3 As shown, in step S3001, UE#1 sends an IMS registration request signal including SRVCC capability to P-CSCF / VATF, and the SRVCC capability indicates whether UE#1 supports the SVRCC mode.

[0055] In step S3002, the P-CSCF / VATF saves the SRVCC capability, and in step S3003, sends an IMS registration request signal including the SRVCC capability to the I / S-CSCF.

[0056] In step S3004, the I / S-CSCF sends an IMS registration request signal including the SRVCC capability to the SCC AS, and in step S30...

Deformed example 2

[0067] Below, refer to Figure 5 as well as Image 6 , Regarding the mobile communication system according to Modified Example 2 of the first embodiment described above, differences from the mobile communication system according to the first embodiment described above will be described emphatically.

[0068] First, refer to Figure 5 , the IMS registration procedure of UE#1 in the mobile communication system according to Modification 2 will be described.

[0069] Such as Figure 5 As shown, in step S5001, UE#1 sends an IMS registration request signal including SRVCC capability to P-CSCF / VATF, and the SRVCC capability indicates whether UE#1 supports SRVCC mode.

[0070] In step S5002, the P-CSCF / VATF sends an IMS registration request signal including the SRVCC capability to the I / S-CSCF.

[0071]In step S5003, the I / S-CSCF saves the SRVCC capability, in step S5004, sends an IMS registration request signal including the SRVCC capability to the SCC AS, in step S5005, the SCC ...

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Abstract

A mobile communication method comprises: a step in which UE #1 transmits an "INVITE" to a P-CSCF / VATF in a network where the UE #1 is existent; a step in which the P-CSCF / VATF transmits the "INVITE" to an IMS; and a step in which the P-CSCF / VATF allocates, based on an allocation request signal received from the IMS, an MGW #1 to the audio communication path.

Description

technical field [0001] The present invention relates to a mobile communication method and a mobile communication system. Background technique [0002] Conventionally, radio access networks (UTRAN: Universal Terrestrial Radio Access Network (UTRAN: Universal Terrestrial Radio Access Network) or GERAN: GSM EDGE Radio Access Network) and LTE (Long Term Evolution) radio access networks capable of accommodating 2G / 3G are known. Access network (EUTRAN: Evolved Universal Terrestrial Radio Access Network (Evolved Universal Terrestrial Radio Access Network)) mobile communication system. [0003] In 3GPP TS23.216, it is stipulated that the path for voice communication between UE (User Equipment) #1 and UE#2 should be switched from a path via E-UTRAN or UTRAN (path for VoIP communication) to via "SRVCC (Single Radio Voice Call Continuity) method" for UTRAN / GERAN paths (paths for CS: Circuit Switch communication) (see Non-Patent Document 1). [0004] In addition, in Alt.4 and Alt.11 o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/14H04M3/00H04W8/22H04W88/06
CPCH04L65/1086H04L29/06217H04L29/0636H04W36/0066H04L65/104H04M7/1205H04L29/06265H04W40/02H04M2207/187H04L65/1016H04W36/1443H04W36/00226H04W72/20H04W76/20H04W88/16
Inventor 西田克利田村利之
Owner NEC CORP