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Diversity transmission and reception method and equipment

  • US 5,097,484 A
  • Filed: 10/05/1989
  • Issued: 03/17/1992
  • Est. Priority Date: 10/12/1988
  • Status: Expired due to Fees
First Claim
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1. In an antenna-selection diversity transmission and reception equipment which is in digital communication with a transmission and reception equipment having a single antenna, and performs transmission and reception with time division by using the same radio frequencies, said antenna-selection diversity transmission and reception equipment comprising:

  • a plurality of antennae for receiving frame signals from said transmission and reception equipment having a single antenna, each of said frame signals being constituted by at least a preamble signal, an information signal and a postamble signal;

    a receiving part having receiving means for detecting signal levels of the received frame signals and comparing means for generating antenna selection information by comparing the detected signal levels, said antenna selection information being generated at the time at least said postamble signal was received; and

    a transmitting part having memory means for storing said antenna selection information transmitted by said comparing means of said receiving part; and

    means to select an antenna for transmission from said plurality of antennae at the time of transmission in accordance with said antenna selection information of said memory means.

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