Patent ID: 9479215
Filing Date: 2016-10-25
CPC Classification: H04B,H04L

Claim Text:
1. A method of processing digital samples of a signal received at a receiver via a channel in a wireless communication system, the method comprising monitoring channel conditions and generating a channel indicator comprising at least one channel parameter by performing at least one of: (a) estimating a channel parameter indicative of a degree of mobility of the channel, and comparing that estimate with at least one mobility threshold; (b) estimating a channel parameter indicative of an energy of the channel outside a predefined temporal window, and comparing that estimate with at least one out-of-window energy threshold; (c) estimating a channel parameter indicative of at least one of a temporal duration of a channel response and channel length and channel delay distribution, and establishing if the estimated temporal duration or channel length or delay distribution meets predetermined criteria; (d) estimating a channel parameter indicating a location of channel zeros in a z-plane, and establishing if the location of the channel zeros meets predetermined criteria; (e) estimating a channel parameter indicative of a signal-to-disturbance power ratio of the received signal and comparing the estimated signal-to-disturbance ratio with at least one signal-to-disturbance ratio threshold; (f) estimating a channel parameter indicative of the signal-to-disturbance power ratio of an estimated channel response; (g) estimating a channel parameter indicative of a degree of non-stationarity of disturbance at the receiver input; the method further comprising the following steps implemented by a processor at the receiver: