Frequency-multiplexed cellular telephone cell site base...

H - Electricity – 04 – J

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H04J 1/00 (2006.01) H04B 7/26 (2006.01) H04L 5/06 (2006.01) H04Q 7/22 (2006.01)

Patent

CA 2100901

The present invention is directed to a cellular telephone cell site base station (10) having a single radio transmitter (40) and radio receiver (14) for transmitting and receiving, respectively, multiplexed frequency-modulated (FM) signals. A filter bank synthesizer (36), associated with the transmitter, multiplexes individual signals for transmission by the transmitter by exponentially modulating the signals to higher frequency bands followed by low-pass filtering and interpolation using discrete Fourier transform techniques. A filter bank analyzer (18), associated with the receiver, demultiplexes multiplexed FM signals received by the receiver by exponentially modulating each signal to its original spectral position followed by low-pass filtering and decimation, using discrete Fourier transform techniques.

La présente invention porte sur une station de base de site de téléphonie cellulaire (10) comportant un seul émetteur radio (40) et un seul récepteur radio (14) servant à émettre et à recevoir respectivement des signaux à modulation de fréquence (FM). Un synthétiseur à batterie de filtrage (36) associé à l'émetteur multiplexe les signaux individuels en vue de leur émission en les modulant exponentiellement à des bandes de fréquences supérieures, puis en les soumettant à un filtrage passe-bas et à une interpolation effectuées au moyen d'une transformation de Fourier discrète. Un analyseur à batterie de filtrage (18) associé au récepteur démultiplexe les signaux FM reçus par le récepteur en les modulant exponentiellement à leur position spectrale d'origine, puis en les soumettant à un filtrage passe-bas et à une décimation effectuées à l'aide d'une transformation de Fourier discrète.

LandOfFree

Say what you really think

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

Rating

Frequency-multiplexed cellular telephone cell site base... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Frequency-multiplexed cellular telephone cell site base..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency-multiplexed cellular telephone cell site base... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1520069

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