Method and device for automatic call redialing

Abstract

The invention discloses a method for automatic redialing of a call, which includes: detecting the call status, and checking the cause value of the call failure; according to the checking result, when it is determined that the preferred cell needs to be selected, the preferred cell is selected, and the mobile terminal is connected to the preferred cell and then redialed. Dial; Redial in the current cell where cell selection is not required. The invention also discloses a device for automatic redialing of calls at the same time. By adopting the invention, automatic redialing of calls without user awareness can be completed after the call fails, the success rate of voice calls is improved, and the perception of mobile terminal users is improved.

Description

technical field [0001] The invention relates to a mobile terminal wireless network access technology, in particular to a method and device for automatic call redialing based on an Android system. Background technique [0002] Android is an open source operating system based on Linux, which is mainly used in portable mobile terminals. Mobile terminals based on the Android system basically adopt the system architecture of AP+CP, in which AP is the application layer, which is related to the upper-layer application; CP is the communication layer, which is responsible for the communication of telecom service network messages. The AP layer can be divided into application program layer, application program framework layer, and radio interface layer (RIL) from top to bottom; among them, the application program layer involves the development of application programs; the application program framework layer can be referred to as the framework layer, responsible for The system provides...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, there are some solutions to improve the call success rate. For example, after the call fails, it will prompt on the call interface whether to redial, or directly display that the redial is in progress; however, the biggest defect of this solution is that it affects the user's perception. Because the user's focus is on the final result of the call, not on the redialing process

Another solution is that when a call fails, the call ends in failure, and at the same time, the CP layer performs cell selection and switches to the cell that it thinks has a stronger signal through comparison. The purpose of this solution is to improve The success rate of the next call; however, the disadvantage of this scheme is: firstly, it cannot solve the inconvenience caused by the failure of this call, and secondly, the CP layer only considers the signal strength as a cell preference scheme, which still cannot improve the call success rate. Hidden dangers

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