Communication method for dual-model dual-standby terminal and corresponding communication system

Abstract

The invention discloses a communication method for a dual-model dual-standby terminal and a corresponding communication system, wherein the dual-model dual-standby terminal can be simultaneously accessed to networks of different technologies by using a same card. A dual-model dual-standby terminal attaching method comprises the steps of: in an attaching process of the dual-mode dual-standby terminal capable of accessing two kinds of wireless access networks by using an international mobile subscriber identity (IMSI), after core network equipment receives an attachment request sent by the dual-model dual-standby terminal, carrying the IMSI of the terminal, the position information of the core network equipment and the access type information of the current access in a position updating request message sent to a subscription server, wherein the access type refers to the type of the wireless access network to which the terminal is accessed; and after the subscription server receives the position updating request message, updating the position information of the core network equipment corresponding to the IMSI and the access type information.

Description

technical field [0001] The present invention relates to the communication field, in particular to a communication method for a dual-mode dual-standby terminal and a corresponding communication system. Background technique [0002] Existing communication systems include 2G (2nd Generation) mobile communication systems and 3G (3rd Generation) mobile communication systems, of which 2G communication systems include Global System for Mobile Communications (GSM for short) and Code Division Multiple Access according to different standards. (Code Division Multiple Access, referred to as CDMA) mobile communication system; and 3G mobile communication system evolved from 2G mobile communication system, GSM evolved into Wideband Code Division Multiple Access (referred to as WCDMA) mobile communication system and time division synchronization Code Division Multiple Access (Time Division-Synchronous Code Division Multiple Access, referred to as TD-SCDMA) mobile communication system, CDMA ...

AI Technical Summary

Problems solved by technology

[0043] There are dual-mode single-standby terminals in the existing network, and users can only stay on one network. Such terminals may frequently select networks due to network coverage, resulting in excessive power consumption. In addition, users cannot Selecting the network corresponding to the network capacity for business results in poor user experience. For 2G and 3G networks, 2G coverage is good, and 3G is still under construction and optimization. As a result, users still prefer to use 2G networks, resulting in 2G capacity saturation, while 3G idle resources

For another dual-mode dual-standby terminal, since the user has two different cards, he can access different networks at the same time, even the networks of different operators, which will cause the user to have two different MSISDN (MobileStation international ISDN) number, the international ISDN number of the mobile station, where ISDN is the abbreviation of Integrated Services Digital Network, which means integrated service digital network of the telephone), which leads to poor user experience, and for the operator, some services may be taken away by other operators, causing the operation decrease in business income

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