Patent ID: 8805278
Filing Date: 2014-08-12
Classification: G06F,H04L,H04M,H04W

Abstract:
1. A method of implementing network/card locking for a mobile terminal, wherein a main board of the mobile terminal is connected to a user identification unit, a central processing unit and an encryption chip of the mobile terminal; a network/card locking requirement from a mobile operator is preset for the mobile terminal, the method further comprising: transmitting, by the encryption chip, a blocking request to the central processing unit when the encryption chip detects authentication-related information that is provided by the user identification unit to the central processing unit, and determines that the authentication-related information does not meet the preset network/card locking requirement from the mobile operator; blocking, by the central processing unit, the mobile terminal from normal operation when receiving the blocking request, wherein the authentication-related information comprises: an International Mobile Subscriber Identification (IMSI) and an authentication algorithm; and wherein the IMSI is composed of a Mobile Country Code (MCC), a Mobile Network Code (MNC) and a Mobile Identification Number (MIN); wherein the network locking requirement from the mobile operator comprises: the MCC in the IMSI included in the authentication-related information being consistent with an MCC of network of the mobile operator, and the MNC in the IMSI included in the authentication-related information being consistent with an MNC of network of the mobile operator; and wherein the determining that the authentication-related information does not meet the preset network locking requirement from the mobile operator comprises: