Apparatus and method for effecting synchrony in a wireless communication system

Abstract

An apparatus for effecting synchrony with a received transmitted signal in a wireless communication system is disclosed. The transmitted signal is encoded according to a predetermined coding scheme and arranged in a plurality of first frames in a first succession having a first period. The apparatus comprises: (a) a timing circuit for generating a trigger signal for effecting periodic sampling of the transmitted signal at a sampling node; the trigger signal and the transmitted signal cooperate at the sampling node to generate a detection indication signal; (b) a reference signal source for generating a reference signal for the timing circuit in a plurality of second frames in a second succession having a second period; an amount by which the first period and the second period differ establishes a base offset; (c) an offset generator device; the offset generator device is coupled with the sampling node and with the timing circuit; the offset generator device receives the detection indication signal. The offset generator device determines a code offset related to elapsed time following a beginning of a respective frame of the plurality of first frames during which an expression encoded according to the predetermined coding scheme may be received. The offset generator device generates a frame offset signal by which to effect adjusting sending the trigger signal by the timing circuit from the second period to adjust synchrony with the transmitted signal. The frame offset signal involves the base offset and the code offset.