Patent ID: 7769115
Filing Date: 2010-08-03
Classification: H04B

Abstract:
1. A method comprising: receiving a waveform through a wireless communication channel, wherein the received waveform comprises a stream of information-bearing symbols; correlating symbol-long segments of the received waveform to form a plurality of symbol rate samples, wherein correlating the symbol-long segments comprises, for each of the symbol rate samples, correlating a first template with a second template to form the respective symbol rate sample, and wherein the first template and the second template are adjacent symbol-long segments of the received waveform; forming, with a receiver device, estimates of partial energies of the wireless communication channel based on the symbol rate samples, wherein the partial energies of the wireless communication channel are dependent upon a timing offset and independent of the information-bearing symbols, and wherein forming the estimates of partial energies of the wireless communication channel comprises forming the estimates of the partial energies without knowledge of the timing offset; estimating the information-bearing symbols of the received waveform based on the estimates of the partial energies to produce a stream of symbol estimates; and outputting the stream of symbol estimates.