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Method and apparatus for logoff of wireless IP access network association address

A technology of access network and network side equipment, applied in wireless network protocol, wireless communication, transmission system and other directions, which can solve the problems of call delivery failure and prolonging call establishment time, etc.

Active Publication Date: 2008-11-05
NOKIA TECHNOLOGLES OY
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  • Claims
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Problems solved by technology

[0013] However, the inventors of the present invention found that when the terminal leaves the IP access network in an abnormal manner, such as the terminal loses the signal of the currently connected IP access network and cannot log out the contact address to the IMS network in time, the subsequent received When a call is made to the user's public identity, the call may still be delivered through the IP access network. At this time, problems such as call delivery failure or prolonged call establishment time may easily occur

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  • Method and apparatus for logoff of wireless IP access network association address
  • Method and apparatus for logoff of wireless IP access network association address
  • Method and apparatus for logoff of wireless IP access network association address

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Embodiment Construction

[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.

[0033] The first embodiment of the present invention relates to a method for canceling a contact address of a wireless IP access network. In this embodiment, the first wireless IP access network is a WLAN network, and the other access networks are HRPD networks. That is to say, the terminal leaves the WLAN network in an abnormal manner, and does not cancel the contact address of the WLAN network to the IMS network, but the current HRPD network is available, and the terminal cancels the contact address of the WLAN network to the IMS network through the HRPD network. Wherein, the IP address allocated by the HRPD network is 5555::1:2:3:4; the IP address allocated by the WLAN network is 5555::5:6:7:8. The specific cancellation process is as...

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Abstract

The invention relates to the wireless communication field, specifically discloses a method and apparatus for logoff of wireless IP access network association address, which, after the terminal leaves the IP access network in an abnormal mode, can avoid the problem that when the terminal receives the call of the user common identification corresponding to the terminal, the call can also be distributed from the IP access network according to the IP access network association address associated to the user identification. In the invention, when the terminal leaves a first wireless IP access network, if the association address of the terminal at the first wireless IP access network is not logoff to the IMS network, the other currently available access networks are used to inform the IMS network to logoff the association address of the terminal at the first wireless IP access network. When the available wireless IP access network exists, the terminal initiates a re-registration process to the wireless IP access network, and transmits the information for logoff of the first wireless IP access network to the S-CSCF; and the S-CSCF logs off the association address of the terminal at the first wireless IP access network.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a terminal cancellation technology of a wireless IP access network. Background technique [0002] With the rapid development of communication technology, in the future 3G network architecture, the mobile network is no longer limited to the circuit switching mode, and gradually evolves to the Internet Protocol (Internet Protocol, referred to as "IP") network. Starting from the R5 stage of the 3rd Generation Partnership Project (3GPP for short), the core network of the Universal Mobile Telecommunications System (UMTS for short) is divided into a circuit switched domain (Circuit Switched Domain). Switched, referred to as "CS"), Packet Switched domain (Packet Switched, referred to as "PS") and IP Multimedia Subsystem (IP Multimedia Subsystem, referred to as "IMS") three subsystems. [0003] The IMS is a subsystem superimposed on the existing packet domain in the Wideband Code D...

Claims

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Application Information

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IPC IPC(8): H04L12/28H04L29/06H04L12/24
CPCH04L29/12301H04L29/12188H04L29/06217H04L29/06333H04L61/2076H04L61/1588H04W60/06H04L65/1073H04L65/1016H04W80/10H04L61/4588H04L61/5076H04L65/1095
Inventor 龙水平
Owner NOKIA TECHNOLOGLES OY
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