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Registration method and device of subscriber identity module card, storage medium and terminal

A technology of user identification card and identification card, which is applied in the field of communication, can solve the problems affecting the efficiency of terminal startup to find the network, and achieve the effect of improving the efficiency of startup to find the network

Active Publication Date: 2020-07-14
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, after the mobile terminal is turned on, it traverses the files corresponding to each network standard in the SIM card or USIM card, and reads the corresponding registration information from it to register, which directly affects the efficiency of the terminal to find the network when it is turned on.

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  • Registration method and device of subscriber identity module card, storage medium and terminal
  • Registration method and device of subscriber identity module card, storage medium and terminal
  • Registration method and device of subscriber identity module card, storage medium and terminal

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Embodiment Construction

[0029] As mentioned in the background technology, in the prior art, after the mobile terminal is turned on, it traverses the files corresponding to each network standard in the SIM card or USIM card, and reads the corresponding registration information from it to register, which directly affects the efficiency of the terminal to find the network when it is turned on. Nets are less efficient. Moreover, since registration information of multiple formats may exist at the same time, there is a risk that the registration information of the last successful registration cannot be used correctly.

[0030] In order to solve this problem, in another existing solution, the terminal can store the network standard registered before the last shutdown in the internal memory of the terminal, such as non-volatile random access memory (Non-Volatile Random Access Memory, referred to as NVRAM or In NV), however, if the USIM card is kept unchanged before and after power-on, then the last registere...

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Abstract

The invention discloses a registration method and device for a subscriber identity module card, a storage medium and a terminal. The method comprises the steps: reading a network type identification registered last time from the subscriber identity module card when the terminal connected to the subscriber identity module card is detected to be switched on; identifying a corresponding network typeaccording to the acquired network type identifier; acquiring registration information corresponding to the identified network type from the user identification card; executing a network registration process according to the acquired registration information. Through the method, the efficiency of switching on the terminal to find the network can be effectively improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for registering a user identification card, a storage medium, and a terminal. Background technique [0002] At present, after the mobile terminal is turned on, it will first reside in the subscriber identity card according to the protocol specification, which can refer to the registered public land mobile network stored in the Subscriber Identity Module (SIM card for short) or the Universal Subscriber Identity Module (USIM card for short)). (Registered Public Land Mobile Network, RPLMN for short). However, for a multi-mode terminal supporting multiple network standards (2G, 3G, 4G, 5G, etc.), the mobile terminal needs to obtain the radio access type (Radio Access Type, RAT for short) of the RPLMN from multiple network standards, and Accurately obtain the registration information of the last successful registration. [0003] In the prior art, after the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/18H04W48/16H04W60/00
CPCH04W8/183H04W48/16H04W60/00
Inventor 倪金金
Owner SPREADTRUM COMM (SHANGHAI) CO LTD