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Methods and systems for frequency multiplexed communication in dense wireless environments

  • US 9,577,811 B2
  • Filed: 04/29/2014
  • Issued: 02/21/2017
  • Est. Priority Date: 05/03/2013
  • Status: Active Grant
First Claim
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1. A method of high-efficiency wireless frequency division multiplexing, comprising:

  • determining a first set of wireless devices have a higher performance characteristic than a second set of wireless devices;

    transmitting, from an access point, a message indicating the first set of wireless devices utilize a first set of wireless frequencies and the second set of wireless devices utilize a second set of wireless frequencies based on the determination, wherein the second set of wireless frequencies do not overlap with the first set of wireless frequencies;

    transmitting, from the access point, a reference signal over the second set of wireless frequencies indicating that both the first and second sets of wireless devices may initiate transmission over the first and second sets of wireless frequencies respectively;

    receiving, at the access point, communications from the first set subset of wireless devices on the first set of wireless frequencies; and

    receiving communications from the second set of wireless devices on the second set of wireless frequencies.

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