Patent ID: 9467813
Filing Date: 2016-10-11
CPC Classification: H04W

Claim Text:
1. A base station connecting method for a mobile apparatus, the mobile apparatus comprising a transceiver and a processing unit, and the base station connecting method comprising: (a1) the transceiver of the mobile apparatus receiving a plurality of frequency values relative to a baseline frequency value from a plurality of second base stations; (a2) the processing unit of the mobile apparatus calculating a reference frequency value of the frequency values; (a3) the processing unit of the mobile apparatus calculating a plurality of frequency shift values of the frequency values relative to the reference frequency value; (a4) the processing unit of the mobile apparatus selecting a most appropriate frequency shift value from the frequency shift values; (a5) the processing unit of the mobile apparatus calculating a moving speed of the mobile apparatus according to the most appropriate frequency shift value and the reference frequency value by using the Doppler Effect formula; (b) the transceiver of the mobile apparatus receiving speed threshold information from a first base station, wherein the speed threshold information comprises a speed threshold upper limit value; (c) the processing unit of the mobile apparatus determining that the moving speed is lower than the speed threshold upper limit value; and (d) the processing unit of the mobile apparatus connecting with the first base station via the transceiver according to the result of the step (c).