Automatic switching control method and system of AGPS servers based on mobile terminal

Abstract

The invention discloses an automatic switching control method and system of AGPS servers based on a mobile terminal. The method comprises a step A of pre-storing a plurality of access operators or third-party AGPS providers corresponding to the access operators, as well as an AGPS server provided by each access operator or each third-party AGPS provider; a step B of detecting whether the network accessed by a mobile terminal has changed; and a step F of, according to an access operator newly accessing the network, finding out and accessing an AGPS server provided by the access operator, or finding out a third-party AGPS provider corresponding to the access operator and accessing an AGPS server provided by the third-party AGPS provider. The method provided by the invention improves the intelligent degree of the mobile terminal, eliminates the geographical limitations and network limitations in the use of existing AGPS functions, and ensures that the mobile terminal can always connect to a currently available AGPS server.

Description

technical field [0001] The present invention relates to the technical field of mobile terminals, in particular to a mobile terminal-based AGPS server automatic switching control method and system. Background technique [0002] Assisted Global Positioning System (English: Assisted Global Positioning System, referred to as: AGPS) is a GPS operation mode, it can use the information of the mobile terminal base station, with traditional GPS satellites, so that the positioning speed is faster, and it can also be used in Determine the location of the mobile terminal for rescue in an emergency. [0003] The use of AGPS makes good use of the network function of the mobile terminal, which can help the mobile terminal download the ephemeris data corresponding to the current position from the AGPS server, reduce the GPS satellite search process, and greatly improve the speed of GPS positioning and effects. [0004] However, the use of the existing AGPS still has certain defects, which...

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Problems solved by technology

[0004] However, the use of the existing AGPS still has certain defects, which are mainly reflected in the following two aspects. The first defect is geographical restrictions. It is very poor. If you use supl.nokia.com or mobile operators themselves, the effect will be much better;

[0005] Defect 2: Network restrictions. Some mobile terminals are customized by operators, so operators require to use their own AGPS servers. When using other operator networks, this design often causes link failures, which affects GPS positioning. Effect

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