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1. (WO2018076922) SYSTEM AND METHOD FOR ENABLING MOBILE TERMINAL OF SINGLE IMSI MULTIPLE MSISDN TO BE CONCURRENTLY ONLINE

Pub. No.:    WO/2018/076922    International Application No.:    PCT/CN2017/099423
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Wed Aug 30 01:59:59 CEST 2017
IPC: H04W 4/16
H04W 12/06
Applicants: BEIJING WATCHSMART TECHNOLOGIES CO., LTD
北京握奇智能科技有限公司
Inventors: LU, Yong
陆勇
Title: SYSTEM AND METHOD FOR ENABLING MOBILE TERMINAL OF SINGLE IMSI MULTIPLE MSISDN TO BE CONCURRENTLY ONLINE
Abstract:
The present invention relates to the technical field of mobile communications. Disclosed are a system and method for enabling a mobile terminal of single IMSI multiple MSISDN (SIMM) to be concurrently online. In the system and method, a SIM card communicates with an operator core network by means of a mobile terminal and a background server accessing the operator core network; after receiving an authentication request sent by the operator core network, the background server first adds a card number identifier of an IMSI to the authentication request, and then sends the authentication request to the SIM card by means of the mobile terminal, so that the SIM card can call correct card number authentication data according to the card number identifier to complete network access authentication of the IMSI. The system and method of the present invention enable SIMM to be concurrently online without adding any extra device, and ensure correct transmission and processing of an instruction delivered by the core network.