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Wireless communication system using distributed switched antennas

  • US 5,628,052 A
  • Filed: 09/12/1994
  • Issued: 05/06/1997
  • Est. Priority Date: 09/12/1994
  • Status: Expired due to Term
First Claim
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1. A method of achieving increased coverage and macro diversity from a single base station in a wireless communication system having a base station coupled to N antennas, said method comprising the steps of:

  • (1) transmitting from said base station N control messages in N downlink control slots of a frame each via one of said antennas;

    (2) transmitting a data message addressed to a mobile unit in one of N downlink data slots of said frame via a particular one of said antennas previously assigned to said mobile unit for the duration of an active call;

    (3) receiving in said mobile unit said control messages and said data message;

    (4) analyzing in said mobile unit said control messages to identify from said antennas a best antenna;

    (5) transmitting from said mobile unit to said base station a new antenna request identifying said best antenna in one of N uplink control slots of said frame, said one of N uplink control slots being associated with said particular one of said antennas; and

    (6) using in response to said new antenna request said best antenna to transmit from said base station one or more subsequent data messages addressed to said mobile unit.

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