Patent ID: 7403555
Filing Date: 2008-07-22
Classification: H04B

Abstract:
1. A User Equipment (UE) for use in wireless telecommunications comprising: a receiver configured to receive and sample communication signals, where the communication signals have a time frame format, a transmission rate and a synchronization code selected from a set of a plurality of downlink synchronization codes which have a predetermined number of elements, where the communication signals include data of a specified channel (BCH) which is carried on a primary common control physical channel (P-CCPCH) in selected timeslots of the time frame format, where each downlink synchronization code has a modulation which is indicated by a midamble, and where a specified modulation sequence of consecutive downlink synchronization codes identifies the location of the BCH data; a synchronization code determination circuit which processes sets of sequential communication signal samples, where each sequential sample set also has the predetermined number of elements, within an input period which is based on an input rate that is at least as fast as the transmission rate including a correlator component and a detection circuit; said correlator component configured to correlate a sequential sample set with each of the synchronization codes of the set of downlink synchronization codes and to output to said detection circuit correlation data for all of the synchronization codes within one input period; a detection circuit operatively associated with said correlator component to detect and track positive correlations of downlink synchronization codes with sequential sample sets; a midamble determination circuit operatively associated with the synchronization code determination circuit to determine the respective midamble based on the relative location and identity of a detected downlink synchronization code; and a phase modulation sequence detection circuit operatively associated with the midamble determination circuit and the synchronization code determination circuit to determine sequences of phase modulation of consecutive detected downlink synchronization codes based on downlink synchronization codes detected by the synchronization code determination circuit and the midamble determined by the midamble determination circuit.