Network searching method and mobile terminal after coverage loss

Abstract

The invention provides a network searching method and a system after a coverage loss. The network searching method comprises the following steps of: after the coverage of a mobile terminal is lost, determining a frequency point to be scanned preferentially according to the probability of an occurrence scene of the coverage loss; and starting scanning and network searching from the frequency point to be scanned preferentially. In the method, the frequency point with a high probability of the occurrence scene of the coverage loss is scanned after the coverage loss to ensure that the mobile terminal can find a network as quick as possible and returns to a coverage area, so frequent meaningless frequency sweeps are not needed, and the mobile terminal not only can access to the network more quickly but also can save electric quantity and prolong the standby time.

Description

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AI Technical Summary

Problems solved by technology

[0003] In the daily use of UE (User Equipment), the coverage loss that occurs most frequently is short-lived, such as entering an elevator, driving into a tunnel, etc., and after getting out of the elevator or tunnel, it is still the same cell; The blind area under the same RPLMN, that is, the area where there is no signal coverage at the junc

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