A network registration method and mobile terminal

Abstract

An embodiment of the present invention discloses a network registration method, which includes: when it is detected that a mobile terminal is powered on, reading the RPLMN recorded by the mobile terminal, and scanning the network to obtain the PLMN of the current candidate cell; according to the recorded RPLMN and the The PLMN of the current candidate cell is used to determine whether the mobile terminal is powered on for the first time in a roaming location; when it is determined that the mobile terminal is powered on for the first time in a roaming location, the PLMN of the current candidate cell is used for network registration. An embodiment of the invention also discloses a mobile terminal. By adopting the embodiments of the present invention, it is possible to simplify the steps of registering the network in the roaming location when the roaming location is first powered on, thereby increasing the speed of network registration.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a network registration method and a mobile terminal. Background technique [0002] When the mobile terminal is turned on, it needs to re-register with the PLMN (Public Land Mobile Network, public land mobile network). PLMN is a network established and operated by the government or its approved operators to provide land mobile communication services for the public. The network must be interconnected with PSTN (Public Switched Telephone Network, Public Switched Telephone Network) to form a communication network of the entire region or country. Wherein, the PLMN includes MCC (Mobile Country Code, mobile country code) and MNC (Mobile Network Code, mobile network number). [0003] In the prior art solution, when the mobile terminal is turned on for the first time in a roaming area, the RPLMN (Registered PLMN, the PLMN registered by the terminal before the last shutdown ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art solution, when the mobile terminal is turned on for the first time in a roaming area, the RPLMN (Registered PLMN, the PLMN registered by the terminal before the last shutdown or offline) recorded by the mobile terminal is first obtained, and the network standard and scanning frequency are determined. Then scan the network to get the PLMN of the candidate cell. Since the mobile terminal is powered on while roaming, the RPLMN recorded by the mobile terminal does not match the PLMN of the candidate cell, resulting in network registration failure under this network system. Therefore, it is necessary to reselect the next network system. Use RPLMN for network registration under all network standards, until the use of RPLMN for network registration under all network standards will eventually fail, and finally choose other methods for registration, resulting in a long time for network registration

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