H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 27/01 (2006.01) H04L 25/02 (2006.01) H04L 25/03 (2006.01)
Patent
CA 2264414
A communications receiver for detecting data symbols from signals representative of the data symbols received from a communications channel, the communications receiver comprising an equaliser (19) which operates to detect the data symbols by calculating a plurality of transition probability estimates associated with transitions from first states (m') of the communications channel to at least one subsequent state (m) of the communications channel from an estimate of an impulse response of the communications channel and the received signals, wherein the communications receiver further includes a channel impulse response adapter (42) coupled to the equaliser (19,46), which operates to adapt the channel impulse response estimate in dependence upon the plurality of transition probability estimates, whereby a likelihood of correctly detecting the data symbols is substantially improved. The communications receiver may form part of a GSM or a TD-CDMA mobile radio communications receiver.
Aktiengesellschaft Siemens
Fetherstonhaugh & Co.
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