×

Sounding and steering protocols for wireless communications

  • US 9,270,431 B2
  • Filed: 08/30/2013
  • Issued: 02/23/2016
  • Est. Priority Date: 03/31/2009
  • Status: Active Grant
First Claim
Patent Images

1. A method comprising:

  • transmitting a sounding packet to wireless communication devices;

    receiving, in response to the sounding packet, feedback packets from the wireless communication devices, wherein the feedback packets are indicative of beamforming matrices, the beamforming matrices being derived from received versions of the sounding packet;

    determining steering matrices based on the beamforming matrices;

    generating spatially steered data packets for the wireless communication devices based respectively on the steering matrices and data streams intended respectively for the wireless communication devices; and

    transmitting, within a frame, the spatially steered data packets to the wireless communications devices, wherein the spatially steered data packets concurrently provide the data streams respectively within the frame to the wireless communication devices via different spatial wireless channels.

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