H - Electricity – 04 – J
Patent
H - Electricity
04
J
H04J 3/12 (2006.01) H04B 7/26 (2006.01) H04Q 7/38 (2006.01)
Patent
CA 2076296
A method of detecting the identity of a radio channel and to ascertain whether the channel is a control channel or a traffic channel, in conjunction with convolution decoding in a mobile radio receiver. Channel identification is effected without such complete decoding. Part of a data block is decoded in accordance with the Viterbi algorithm as though the block represented a control channel. If the metric obtained after a given number of nodes is smaller than a given number of threshold values, the channel is considered to be a control channel and is thereafter decoded as such a channel. If the metric is greater than the threshold value, the channel is decoded as a speech channel.
Farjh Jan Fredrik
Ugland Jon Kristen
Marks & Clerk
Telefonaktiebolaget Lm Ericsson
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