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Transmit diversity and separating multiple loopback signals

  • US 6,996,375 B2
  • Filed: 02/14/2003
  • Issued: 02/07/2006
  • Est. Priority Date: 07/26/2001
  • Status: Expired due to Term
First Claim
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1. A method of generating a loop-back signal at a mobile station for use in downlink channel estimation by a wireless communication network comprising:

  • receiving a network-transmitted signal as a received signal at a mobile station;

    obtaining signal samples from the received signal;

    applying a mobile-specific modification to the signal samples; and

    transmitting the modified signal samples from the mobile station to the network in a loop-back signal.

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