A mobile device configured to estimate the speed at which it is moving. The mobile device includes a timing component configured to perform a plurality of Doppler shift measurements on a timing signal received by the mobile device. The mobile device also includes a processing component configured to correlate the size of the range of the plurality of Doppler shift measurements to the speed at which the mobile device is moving.
申请公布号
CA2658423(C)
申请公布日期
2014.06.17
申请号
CA20092658423
申请日期
2009.03.16
申请人
RESEARCH IN MOTION LIMITED
发明人
DIETZ, DAVID BLAINE;SANGARY, NAGULA THARMA;SIMMONS, SEAN BARTHOLOMEW