Patent ID: 8908587
Filing Date: 2014-12-09
Classification: H04L,H04W

Abstract:
1. A method for channel information feedback, comprising: (a) generating a plurality of frequency-domain channel estimates of a channel at a plurality of frequencies, (b) forming a frequency-domain matching error between a continuous time-domain channel model and said frequency-domain channel estimates, said continuous time-domain channel model comprising a set of continuous time-domain parameters, said set of continuous time-domain parameters comprising number of multipaths, multipath delays, and multipath amplitudes, (c) extracting said set of continuous time-domain parameters by minimizing said frequency-domain matching error with recursive minimization, (d) refining said set of continuous time-domain parameters, and (e) feeding back said set of continuous time-domain parameters, whereby said set of continuous time-domain parameters requires smaller amount of data than said channel estimates at said plurality of frequencies do.