Pilotless, wireless, telecommunications apparatus, systems and methods having equalization
AssigneePCTEL, Inc.
InventorsYuri Goldstein, Yuri Okunev
Life of this patent
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Abstract
Systems, methods and apparatus are provided for equalizing a received multicarrier wireless telecommunications data signal. The wireless signal includes data without accompanying pilot signals, and equalization is accomplished by extracting information from the data, by processing the information in order to obtain equalization indications, and by equalizing the multicarrier wireless telecommunications data signal by modifying indications of the wireless telecommunications data signal using the equalization indications.
Claims11
A method for equalizing a multicarrier wireless telecommunications data signal, comprising:
- a) receiving the multicarrier wireless telecommunications data signal without accompanying pilot signals;
- b) extracting per-carrier phase and amplitude adjustment information from the multicarrier wireless telecommunications data signal by reducing and averaging differential quadrature components of said multicarrier wireless telecommunications data signal;
- c) processing said per-carrier phase and amplitude adjustment information in order to obtain equalization indications;
- and
- d) equalizing said multicarrier wireless telecommunications data signal by modifying indications of said wireless telecommunications data signal using said equalization indications.
A telecommunications apparatus, comprising:
- a receiver which receives a multicarrier wireless telecommunications data signal without accompanying pilot signals, said receiver including an equalizer, said equalizer including means for extracting per-carrier phase and amplitude adjustment information from the multicarrier wireless telecommunications data signal by reducing and averaging differential quadrature components of the received multicarrier wireless telecommunications data signal, for processing said per-carrier phase and amplitude adjustment information in order to obtain equalization indications, and for equalizing said multicarrier wireless telecommunications data signal by modifying indications of said wireless telecommunications data signal using said equalization indications.
A telecommunications system, comprising:
- a first telecommunications apparatus including a transmitter which transmits a wireless telecommunications data signal without accompanying pilot signals;
- and
- a second telecommunications apparatus including a receiver which receives said wireless telecommunications data signal, said receiver including an equalizer, said equalizer including means for extracting per-carrier phase and amplitude adjustment information from the multicarrier wireless telecommunications data signal by reducing and averaging differential quadrature components of the received multicarrier wireless telecommunications data signal, for processing said per-carrier phase and amplitude adjustment information in order to obtain equalization indications, and for equalizing said multicarrier wireless telecommunications data signal by modifying indications of said wireless telecommunications data signal using said equalization indications.
Dependencies are inferred from the claim text.