Method and system for providing conversation switch in multi-access mode

A technology of multiple access methods and session switching, which is applied in the field of communication to achieve the effect of increasing practicability

Inactive Publication Date: 2008-08-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0028] Embodiments of the present invention provide a method and system for providing session switching in a multi-access mode, as

Method used

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  • Method and system for providing conversation switch in multi-access mode
  • Method and system for providing conversation switch in multi-access mode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0103] Figure 5 It is a schematic flow diagram of Embodiment 1. As shown in the figure, the IMS calls, and the UE generates a session establishment sequence quantity, so that the DTF and the session identifier on the UE are the same. The implementation steps are as follows:

[0104] In steps 501-503, the UE initiates an IMS session according to user instructions. The sequence quantity for IMS session establishment is generated on the UE, and the sequence quantity for IMS session establishment is carried in the header field User-Agent of the session request INVITE. In order to identify a specific UE, a device identifier of the UE such as PMI may also be carried in the session request. When the IMS calling process of the VCC framework arrives at the DTF, the DTF confirms that the session is an IMS domain calling, and saves the sequence quantity of the IMS session establishment carried in the session request.

[0105] In steps 504-505, the DTF initiates a call to the peer end ...

Embodiment 2

[0110] Figure 6 It is a schematic flow diagram of embodiment two, as shown in the figure, the IMS caller generates the sequence quantity of IMS session establishment on the DTF, and the implementation steps of making the session identifiers on the DTF and UE the same are as follows:

[0111] In steps 601-603, the UE initiates an IMS session according to user instructions. In order for the network to identify which UE initiates the session, a device identifier of the UE, such as PMI, may be carried in the session message. When the IMS calling process according to the VCC framework arrives at the DTF, the DTF confirms that the session is an IMS domain calling, and the DTF generates and saves the sequence quantity for establishing the IMS session.

[0112] In steps 604-605, the DTF initiates a call to the peer end as the B2BUA.

[0113]Steps 606-610: The session is successfully established according to the procedure for establishing the IMS calling session, and the DTF uses th...

Embodiment 3

[0117] Figure 7 It is a schematic flow chart of Embodiment 3, as shown in the figure, when the IMS is called, the UE generates the sequence quantity for setting up the IMS session, and the implementation steps for making the session identifiers on the UE and DTF the same are as follows:

[0118] In steps 701-702, the user is called, and the Invite request reaches the home S-CSCF of the UE, and is triggered to the DTF according to the initial filtering rules, and the session is anchored on the DTF.

[0119] In the IMS, the S-CSCF needs to check each initial filtering rule in turn, but in some cases it is unnecessary or impossible to do so.

[0120] Steps 703-707, DTF triggers Invite request to S-CSCF, triggers to DSF according to filtering rules, DSF makes domain selection decision, continues session in IMS domain, and then DSF interacts with DTF to select domain as the result of IMS domain connection.

[0121] Steps 708-714, the UE receives the session request, generates and...

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PUM

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Abstract

The present invention discloses a method and system for providing conversation switch in multiple access methods, and switch entity, user equipment, which includes: marking conversation of user equipment by using first sign, marking conversation of switch entity by using second sign, establishing reflection relationship of fist sign and second sign; when conversation is switched, conversation request carrying first sign is transmitted to switch entity, and second sign corresponding to said first sign in switch entity is determined according with reflection relationship; switch entity switches conversation after conversation determined by second sign. The invention solves switch problem that present voice calling continuous technology only supports single conversation in IP multimedia sub-system, and increase practicability of voice calling continuous technology, increase competition in internet mobile operation.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and system for providing session switching in a multi-access mode, as well as a switching entity and user equipment. Background technique [0002] In the process of wireless network evolution from 2G network to 3G network, there will be a situation where 3G network and 2G network coexist for a long period of time. a subject to be studied. [0003] Since the network needs to perceive the registration status of the user on the two networks, when a call needs to be connected to the user, it can select an appropriate network for connection. The network also needs to anchor all of the user's calls so that the user can exercise secondary control when switching between the two networks. [0004] In order to solve the above problems, both 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) and 3GPP2 (3rd Generation Partnership Project 2, 3rd Generati...

Claims

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Application Information

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IPC IPC(8): H04Q7/38H04Q7/32H04W36/00H04W36/14H04W84/10
CPCH04W84/10H04L65/1016H04L65/1083H04L65/1095H04W36/00226H04W36/1443
Inventor 徐杰解晓强
Owner HUAWEI TECH CO LTD
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