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Method and apparatus employing a remote wireless repeater for calibrating a wireless base station having an adaptive antenna array

  • US 20020042290A1
  • Filed: 10/11/2001
  • Published: 04/11/2002
  • Est. Priority Date: 10/11/2000
  • Status: Abandoned Application
First Claim
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1. In a wireless communication system having at least one remote device for communicating with a base transceiver station (BTS) and a plurality of mobile stations, said BTS having an adaptive antenna array including a plurality of antenna elements, a method for determining calibration factors for respective transmit and receive paths associated with each of said antenna elements, comprising the steps of:

  • transmitting a downlink signal from said BTS to said remote device from each of said antenna elements;

    retransmitting from said remote device said downlink signals back to said BTS as at least one uplink signal;

    receiving said uplink signal at said BTS, and determining calibration factors for said respective antenna transmit and receive paths.

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