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Random access orthogonal frequency division multiplex system and method

  • US 5,909,436 A
  • Filed: 08/28/1996
  • Issued: 06/01/1999
  • Est. Priority Date: 08/28/1995
  • Status: Expired due to Term
First Claim
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1. A random access protocol method for communicating between a mobile station and a base station in a multi-access digital radio communications system comprising the steps of:

  • cyclically repeating a random access sequence; and

    transmitting each cyclically repeated random access sequence in an orthogonal frequency division multiplex format from the mobile station as an uplink transmission to the base station, which receives and combines the random access sequence that is cyclically repeated in said cyclically repeating step so as to improve a probability of detecting an access request by said mobile station.

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