Short-distance pairing method of wifi (wireless fidelity) mobile terminal

Abstract

The invention discloses a short-distance pairing method of a wifi (wireless fidelity) mobile terminal, which has the advantages that the pairing precision is high, the time is short, and the LBS (location based service) dependence is avoided. The method comprises the following processes that a mobile terminal A periodically makes broadcast, and the broadcast message contains the unique identification ID of the mobile terminal A; a mobile terminal B starts the scanning mode of a wifi module, if the mobile terminal B is in the wireless signal coverage range of the terminal A, whether the pairing requirement is met or not is judged, and if the pairing requirement is met, the terminal B sends out requests to a service for realizing the pairing with the terminal A; the server receives the pairing request sent by the terminal B and returns the pairing results to the terminal B according to the pairing relationship, and the terminal B builds the pairing relationship with the terminal A according to the results; and the terminal A periodically polls the server, the server checks the successful pairing list according to the ID, and if the list contains ID, the terminal A builds the pairing relationship with the terminal B according to returned results.

Description

[0001] technical field [0002] The invention belongs to the field of wireless communication, and in particular relates to a short-distance pairing method of a wifi mobile terminal. Background technique [0003] Location Based Service (Location Based Service, LBS) is a mobile terminal user's location information (geographical coordinates, Or geodetic coordinates) services, with the support of the GIS (Geographic Information System, geographic information system) platform, a value-added service that provides users with corresponding services. [0004] LBS includes two meanings: the first is to determine the geographical location of the mobile device or the user; the second is to provide various information services related to the location. The main application modes include check-in, surrounding life service information, making friends nearby, group buying, promotion information push, etc. [0005] The implementation of the above applications mainly depends on the acquisiti...

AI Technical Summary

Problems solved by technology

[0010] 3. Effective distance calculation error: such as figure 1 As shown, assuming that the effective distance for successful pairing is 100 meters, the actual distance between terminals A and B is 50 meters, which meets the pairing requirements; however, due to the error in obtaining the location information of A and B, the calculated distance of the server may be 200 meters, which exceeds the effective distance , causing the pairing to fail;

[0011] 4. Leakage of user information: The location information belongs to the user's private information, and if it is uploaded to the server, there will be hidden dangers of information leakage

[0012] The above problems will reduce the service quality and affect the user experience

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