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Radio communication apparatus and method

  • US 5,845,196 A
  • Filed: 07/01/1996
  • Issued: 12/01/1998
  • Est. Priority Date: 06/30/1995
  • Status: Expired due to Fees
First Claim
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1. A method for receiving a data signal which has been transmitted at a predetermined frequency by a repeater station, comprising the steps of:

  • a) receiving a check signal from the repeater station, the check signal comprising a first preamble code pattern followed by a predetermined code pattern, wherein the repeater station transmits the check signal at the predetermined frequency;

    b) determining a reception frequency of the check signal received from the repeater station when the predetermined code pattern is detected from the check signal;

    c) storing frequency control data corresponding to the reception frequency of the check signal when the predetermined code pattern is detected from the check signal; and

    d) receiving the data signal from the repeater station based on the stored frequency control data, the data signal comprising a second preamble code pattern followed by the predetermined code pattern, wherein a length of the first preamble code pattern of the check signal is longer than that of the second preamble code pattern of the data signal.

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