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Handover method for mobile radio system

  • US RE36,078 E
  • Filed: 09/26/1997
  • Issued: 02/02/1999
  • Est. Priority Date: 06/14/1988
  • Status: Expired due to Term
First Claim
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1. A method of communication in a cellular mobile radio system having a plurality of base station transmitters and mobile stations comprising the steps of:

  • transmitting, from a first base station transmitter, radio signals digitally modulated with message information to a mobile station;

    while transmitting the radio signals from the first base station transmitter to the mobile station, beginning to transmit from a second base station transmitter to the mobile station radio signals digitally modulated with substantially the same message information;

    .Iadd.combining, in said mobile station, information transmitted by said first base station transmitter and information transmitted by said second base station transmitter to reconstruct said message information;

    .Iaddend.andterminating the transmission from the first base station transmitter to the mobile station while continuing to transmit from the second base station transmitter radio signals digitally modulated with message information to the mobile station.

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