Frequency-multiplexed cellular telephone cell site base station

Details Frequency-multiplexed cellular telephone cell site base station Frequency-multiplexed cellular telephone cell site base station

1992-09-21

1994-02-22

Safourek, Benedict V.

Multiplex communications

Wide area network

Packet switching

370 76, 375 38, H04J 114

Patent

active

052894649

ABSTRACT:
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.

REFERENCES:
patent: 4513412 (1985-04-01), Cox
patent: 4670899 (1987-06-01), Brody et al.
patent: 4675863 (1987-06-01), Paneth et al.
patent: 4903125 (1990-02-01), Parker
patent: 5001742 (1991-03-01), Wang
patent: 5084903 (1992-01-01), McNamara et al.
patent: 5134633 (1992-07-01), Werner
patent: 5170413 (1992-12-01), Hess et al.
J. Decaluwe, J. M. Rabaey, J. L. Van Meerbergen, and H. J. De Man, "Interprocessor Communication in Synchronous Multiprocessor Digital Signal Processing Chips," IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. 37, No. 12, Dec. 1989, pp. 1816-1828.
J. G. Proakis and D. G. Manolakis, Introduction to Digital Signal Processing, Macmillan, New York 1988, pp. 395-400 and 795-848.
IEEE Standard Dictionary of Electrical and Electronics Terms, 1984, p. 82.
R. E. Crochiere and L. E. Rabiner, Multirate Digital Signal Processing, Prentice-Hall, 1983, Ch. 7, pp. 289-310.
G. A. Arredondo, J. C. Feggeler, and J. I. Smith, The Bell System Technical Journal, vol. 58, pp. 97-122 (Jan. 1979).
N. Ehrlich, R. E. Fisher, and T. K. Wingard, The Bell System Technical Journal, vol. 58, pp. 153-199 (Jan. 1979).
W. C. Jakes, Microwave Mobile Communications, Wiley, New York, 1974, pp. 172-173.
"Multirate Techniques in Filter Bank and Spectrum Analyzers and Synthesizers" in Multirate Digital Signal Processing by R. Grochiere et al. Prenctice Hall, Inc. 1983.

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