Patent ID: 7724853
Filing Date: 2010-05-25
Classification: H04B

Abstract:
1. A method of permitting antenna switching in a wireless terminal in a wireless communication environment, comprising: performing a coherent demodulation protocol during a second transmission time period of a first superslot and estimating an SNR for a first antenna; switching to at least a second antenna at the end of the first superslot; receiving a bit-interleaved signal having information bits spread across a frequency spectrum for one or more strip symbols of a subsequent superslot, said subsequent superslot including a first transmission time period and a second transmission time period which follows said first transmission time period, said first transmission time period including said one or more strip symbols, at least some information being communicated in a strip symbol using non-coherent modulation during said first transmission time period; estimating an SNR for at least a second antenna during the first transmission time period of a subsequent super slot; performing a non-coherent detection protocol during SNR estimation for the at least second antenna; comparing the SNRs for each of the antennas; and selecting an antenna for the subsequent superslot as a function of the estimated SNRs.