×

Diversity antenna selection

  • US 6,002,672 A
  • Filed: 12/20/1996
  • Issued: 12/14/1999
  • Est. Priority Date: 10/25/1996
  • Status: Expired due to Term
First Claim
Patent Images

1. A diversity antenna selection method for a terminal operating in a wireless communication system, said terminal including a single receiver, said method comprising the steps of:

  • a) receiving on a previously selected current antenna during a receive timeslot associated with a current channel by said receiver;

    b) testing reception of a different channel received by said receiver;

    c) testing reception of the current channel received by said receiver using said current antenna;

    d) testing reception of the current channel received by said receiver using an alternative antenna; and

    e) selecting the antenna with the best test results as the current antenna for a subsequent receive timeslot; and

    wherein said step (c) comprises the step of testing for indications of signal and co-channel interference of the received signal and wherein step (e) further comprises the steps of;

    A) determining whether the testing of the current antenna indicated the presence either of fading beyond a first threshold or co-channel interference beyond a second threshold, or both;

    B) responsive to the presence of said indication of co-channel interference beyond said second threshold, selecting the other antenna for reception provided said other antenna satisfies a condition and establishing a hold condition preventing subsequent switching of the selected antenna for a specified number of frames;

    C) responsive to the presence of said indication of fading beyond said first threshold, selecting the other antenna provided said other antenna has a greater signal strength and provided no hold condition is in place preventing said selection.

View all claims
  • 8 Assignments
Timeline View
Assignment View
    ×
    ×