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.
CN1505413AInactive Publication Date: 2004-06-16BEIJING SAMSUNG TELECOM R&D CENT +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING SAMSUNG TELECOM R&D CENT
Publication Date
2004-06-16
Estimated Expiration
Not applicable · inactive patent

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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.
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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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