Patent ID: 8656243

Claim:
A radio receiver, comprising: an input terminal configured to receive a first radio signal, wherein the first radio signal comprises payload data symbols; an equalizer, coupled to the input terminal, configured to equalize the first radio signal and to output an equalized signal; a first channel estimator, coupled to the input terminal and the equalizer, configured to estimate first channel parameters by using the first radio signal and a signal derived from the equalized signal, wherein the payload data symbols are ordered in a sequence of data words according to a special rule and the first channel estimator derives the channel parameters by exploiting the special rule; and a second channel estimator, coupled to the input terminal, configured to estimate second channel parameters by using a second radio signal received at the input terminal, wherein the first radio signal and the second radio signal are different signals, and wherein the first channel parameters and the second channel parameters are different, wherein the equalizer is configured to selectively use the first channel parameters or the second channel parameters to equalize the first radio signal.