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Method of switching between CDMA system and GSM system for dual mode mobile station

A technology of GSM system, mobile station, applied in the direction of electrical components, radio/inductive link selection arrangements, selection devices, etc.

Inactive Publication Date: 2004-06-16
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no relevant signaling protocol mechanism to enable the CDMA / GSM dual-mode mobile station to switch between the CDMA system and the GSM system in the call state

Method used

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  • Method of switching between CDMA system and GSM system for dual mode mobile station
  • Method of switching between CDMA system and GSM system for dual mode mobile station
  • Method of switching between CDMA system and GSM system for dual mode mobile station

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Embodiment Construction

[0098] The present invention is on the basis of switching signaling process and message between existing CDMA system and GSM system MSC, through to CDMA part air interface signaling message, A interface signaling message and IS-41 (North American TIA-EIA standard) core Modification and enhancement of network signaling messages, so as to realize the business continuity handover of CDMA / GSM dual-mode mobile station from CDMA system to GSM system. Listed below are the specific technical design details for enhancing the existing CDMA handover signaling involved in the present invention.

[0099] (1) Enhancements to air interface registration, origination and paging response messages

[0100] When the mobile station supports CDMA / GSM dual-mode operation, the dual-mode mobile terminal GSM should be added to the registration message (RegistrationMessage), origination message (Origination Message), paging response message (Page ResponseMessage) and CDMA reverse air interface message. ...

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Abstract

The invention is a switch method between CDMA system and GSM system which supporting CDMA / GSM double model mobile station, the invention uses the interconnecting function entity (IIF) in the core network of CDMA system and GSM system, masks the core networks of the two basic different protocol standard, each MSC of each system uses the IIF as the MSC belonging to the same system, the parameter of measurement and service needed by the core network MSC and the wireless chain resources information of target network needed by the service core network are added into the switch instruction information correspondent to the service core network E interface, and they are transmitted to the correspondent target MSC through IIF entity by service MSC, realizes the E interface instruction chain and instruction message translation converting function between the CDMA system core network instruction and the GSM system core network, it provides voice service chain relay function between CDMA service MSC and GSM target MSC.

Description

technical field [0001] The invention relates to a method for a mobile terminal in a mobile communication system to switch from a communication state in a current cell to a communication state with an adjacent cell, in particular to a method for supporting a CDMA / GSM dual-mode mobile station in a code division multiple access (hereinafter referred to as CDMA) communication state in a call state. A method for switching between a CDMA) system and a Global Mobile Communication (hereinafter referred to as GSM) system. Background technique [0002] A very important feature of mobile communication is that the terminal can maintain the continuity of communication with the network system when it is moving. This continuity is realized through the unique switching technology in the cellular mobile communication system, which is an important part of radio resource management. That is, in order to maintain the continuity of the business, when the quality of the radio link drops to a cer...

Claims

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Application Information

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IPC IPC(8): H04W36/00H04W88/06
Inventor 傅鹏曹华俊李小强李崑刘卫民
Owner BEIJING SAMSUNG TELECOM R&D CENT
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