Adaptive channel estimation using continuous pilot signal...

H - Electricity – 04 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H04B 1/76 (2006.01) H04B 1/707 (2006.01) H04B 7/01 (2006.01) H04L 1/00 (2006.01) H04L 25/02 (2006.01) H04Q 7/36 (2006.01)

Patent

CA 2439908

A method and apparatus to estimate the channel fade (both the amplitude gain/loss and the phase rotation) to assist the receiver (104) to detect and recover the transmitted signal (112) employs a continuous pilot signal such as the pilot code channel or pilot symbols. The channel estimator uses the same scrambling pattern of pilot channel and coherently integrates the continuous pilot signal to yield a channel estimate. The present invention employs adaptive integration duration to yield a channel estimate. The integration duration of the pilot signal for channel estimation is adaptive and proportional to the Doppler period. The Doppler period is proportional to the inverse of Doppler frequency and is an indicator of how fast the channel changes.

L'invention concerne un procédé et un appareil permettant d'estimer l'évanouissement d'une voie (gain/perte d'amplitude et rotation de phase) afin d'aider le récepteur (104) à détecter et à récupérer le signal transmis (112), à l'aide d'un signal pilote continu comme, par exemple, la voie de codage du pilote ou les symboles du pilote. L'estimateur de voie utilise le même modèle de brouillage que la voie du pilote et intègre de manière cohérente le signal pilote continu afin de générer une estimation de voie. La présente invention utilise la durée d'intégration adaptative pour générer une estimation de voie. La durée d'intégration du signal pilote pour l'estimation de voie est adaptative et proportionnelle à la période Doppler. La période Doppler est proportionnelle à l'inverse de la fréquence Doppler et constitue un indicateur de la rapidité avec laquelle la voie change.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Adaptive channel estimation using continuous pilot signal... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adaptive channel estimation using continuous pilot signal..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive channel estimation using continuous pilot signal... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1483917

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.