Patent ID: 7660359

Claim:
A telecommunication system comprising: a receiver configured to receive a signal including a sequence of Np pulses, each of the Np pulses is located in a separate time window, with only one of the Np pulses in each time window, and each time window includes plural time chips corresponding to plural allowed pulse locations according to a modulation scheme of the signal; a detector configured to detect the presence of an expected pulse sequence of Np pulses in the received signal that represents a known signature by examining only Np detection windows for the existence of a pulse, with only one of the Np detection windows in each time window, a location of the only one detection window in each time window corresponds to a location of a corresponding pulse in the expected pulse sequence of Np pulses that represents the known signature, and each detection window is shorter than a time window and longer than a time chip; and a processor configured to compute a correlation value between the received signal of the sequence of Np pulses and the expected pulse sequence of Np pulses, compute a detection value as a mean value over the Np detection windows of the correlation value, and compare the computed mean value to a predetermined threshold value.