Patent Document ID: 20140134965
Application ID: 14139937
Patent Flag: 0

Claim One:
1. A transmit diversity communication method adapted to transmit from first and second antennas of a first device a first transmit diversity signal, wherein the first device is a mobile device, and wherein said first and second antennas transmit signals differing by first diversity parameter value, the method comprising the steps of: observing a variation in power between the first transmit diversity signal and a prior transmit signal through feedback from a second device; calculating at said first device a value of at least one mobility parameter, said mobility parameter corresponding to the variation in power between the first transmit diversity signal and the second transmit diversity signal; calculating at said first device based at least on said mobility parameter value and on said first diversity parameter value a second diversity parameter value; and transmitting from said first and second antennas of said first device a second transmit diversity signal, wherein said second transmit diversity signal is based on said second diversity parameter value; wherein said mobility parameter has two or more values, each value associated with a phase step adjustment.