Network registration method and mobile terminal

Abstract

The embodiment of the invention discloses a network registration method comprising the steps that when startup of a mobile terminal is detected, RPLMN recorded by the mobile terminal is read, and PLMN of current candidate cells is obtained through network scanning; the first time of startup of the mobile terminal in a roaming location is determined according to the recorded RPLMN and the PLMN of the current candidate cells; and when the first time of startup of the mobile terminal in the roaming location is determined, the PLMN of the current candidate cells is applied to perform network registration. The embodiment of the invention also discloses the mobile terminal. With application of the network registration method and the mobile terminal, the steps of registration of a roaming location network can be simplified in the first time of startup in the roaming location so that speed of network registration can be enhanced.

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 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 (PublicSwitchedTelephoneNetwork, Public Switched Telephone Network) to form a communication network of the entire region or country. Wherein, the PLMN includes MCC (MobileCountryCode, mobile country code) and MNC (MobileNetworkCode, mobile network number). [0003] In the prior art solution, when the mobile terminal is turned on for the first time in a roaming area, first obtain the RPLMN (RegisteredPLMN, the PLMN registered by the terminal before the last shutdown or of...

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, first obtain the RPLMN (RegisteredPLMN, the PLMN registered by the terminal before the last shutdown or off-line) recorded by the mobile terminal, determine the network standard and scanning frequency, and then The PLMN of the candidate cell is obtained through network scanning. 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 standard. Therefore, it is necessary to reselect the next network standard. Use RPLMN for network registration, 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

Images