DETECTION OF SYMBOLS OF A SIGNALLING PARAMETERS CHANNEL IN A MULTICARRIER RECEIVER

摘要

Signal parameter information is derived by: a) collecting time-domain samples (y(n)) of a signal parameter channel; b) performing an FFT to obtain corresponding frequency domain samples (Y (k)); c) selecting one possible parameter (i) and descrambling the frequency domain samples; d) extrapolating to extendthe result to 512 samples; e) performing a 512 point FFT to obtain a time domain channel estimation (hi (n) ) corresponding to the selected parameter f) computing the sum of energies (Ei) of the channel taps which exceed a selected threshold; g) repeating c) to f) for the other possible parameters; h) determining the parameter which has the maximum value of Ei.