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Method for cancelling terminal in IP multi-medium sub-system

A multimedia subsystem and subsystem technology, applied in transmission systems, electrical components, wireless communications, etc., can solve problems such as call failures

Active Publication Date: 2010-09-08
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, if there is an incoming call from the outside world, and the network decides to initiate a call from the IMS domain according to various judgment conditions, the call will fail; The CS domain re-initiates the call. For example, if the call cannot be connected within 15 seconds, the call will be unconditionally transferred to the CS domain. However, the calling user may not be able to wait and hang up the phone before connecting to the CS domain.

Method used

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  • Method for cancelling terminal in IP multi-medium sub-system
  • Method for cancelling terminal in IP multi-medium sub-system
  • Method for cancelling terminal in IP multi-medium sub-system

Examples

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Embodiment Construction

[0047] In the present invention, the terminal reports the connection state of itself and the IMS domain to the home network subscriber server / home location register (HSS / HLR) in the CS domain, and the HSS / HLR, after receiving the connection state information of the terminal, performs a communication between the terminal and the IMS domain. When the connection of the IMS subsystem is interrupted, the IMS domain initiates a process of deregistering the terminal, which is the same as that of the existing protocol.

[0048] Fig. 2 is the flow chart of the method that the terminal of the present invention logs off in the IP multimedia subsystem, specifically perform the following steps:

[0049] Step 101, the terminal sends a Location Update Request (Location Update Request) message to the new visited mobile switching center / visitor location register (New VMSC / VLR) where it is currently located, requesting to update the location, and the message carries the previous information of t...

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Abstract

The method comprises: at circuit domain the terminal reports the connection status information between itself and IP multimedia sub-system to the home subscriber server (HSS) / home location register (HLR); after receiving the connection status information, in case of interruption of the connection between the terminal and the IP multimedia sub-system, the home subscriber server (HSS) / home locationregister (HLR) initiates the process for cancelling the terminal.

Description

technical field [0001] The invention relates to wireless communication technology, in particular to a method for logging out of a terminal in an IP multimedia subsystem. Background technique [0002] Fixed network and cellular network convergence (FMC) represents the development direction of future networks, which is a hybrid network that integrates multiple communication network topologies and communication protocols, such as the circuit domain (CS) and IMS of existing 2G or 3G networks The combination of (IP Multimedia Subsystem) domains, as shown in Figure 1, wherein the CS domain is part of the cellular network, and the access to the IMS domain through WLAN (Wireless Local Area Network) is part of the fixed network, and the IMS domain includes proxy-call server control functions (P-CSCF), Inquiry-Call Server Control Function (I-CSCF), Serving-Call Server Control Function (S-CSCF) and Home Network Subscriber Server (HSS), P-CSCF is the ultimate link from the access networ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/04H04W8/06H04W60/06H04W60/00H04L29/06
Inventor 张翼
Owner HUAWEI TECH CO LTD