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TDMA communicating method and TDMA receiving apparatus

  • US 6,160,800 A
  • Filed: 09/09/1996
  • Issued: 12/12/2000
  • Est. Priority Date: 09/12/1995
  • Status: Expired due to Fees
First Claim
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1. A time division multiple access (TDMA) communicating method comprising the steps of:

  • performing a time division multiple access for a one-point-to-multi-point communication between a base station and a plurality of subscriber stations as outdoor units with radio frequencies corresponding to zones;

    transmitting, from the subscriber stations, TDMA signals with time slots of a common TDMA synchronous frame by each of the subscriber stations in the outdoor units in such a manner that the TDMA signals of the subscriber stations do not overlap;

    receiving a plurality of TDMA signals with different radio frequencies transmitted by each of the subscriber stations in the outdoor units said receiving step being performed by a plurality of reception units;

    converting, in the base station, the TDMA signals of the subscriber stations into signals with a same frequency, said converting step being performed by a plurality of converters;

    combining the converted signals so as not to overlap the TDMA signals, said combining step being performed by a combining unit in the base station;

    demodulating the combined signal, said demodulating step performed by a demodulating circuit in the base station; and

    obtaining information signals of the subscriber stations from the demodulating signal by a TDMA control circuit on the base station.

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