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CONCURRENT MIMO BEAMFORMING TRAINING IN mmW WLAN SYSTEMS

  • US 20190123798A1
  • Filed: 03/08/2017
  • Published: 04/25/2019
  • Est. Priority Date: 03/10/2016
  • Status: Active Application
First Claim
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1. A first station (STA) comprising:

  • a processor configured to;

    send, to a second STA, a training announcement frame that indicates a training period and a concurrent transmit and receive training;

    send, to the second STA during a training transmit opportunity (TXOP), a first set of training frames via a first set of transmit beams in a first time slot of the training period, wherein each of the training frames comprises a header, a MAC body, and one or more training fields;

    send, to the second STA during the training TXOP, a second set of training frames via a second set of transmit beams in a second time slot of the training period;

    receive, from the second STA during the training TXOP, feedback associated with one or more transmit beams of the first and second set of transmit beams, wherein the feedback includes one or more of channel state information (CSI) or one or more beam identifications (IDs); and

    perform a down selection training during the training TXOP, wherein the down selection training comprises sending a set of down selection training frames via a down-selected set of transmit beams, and wherein the down-selected set of transmit beams are a subset of the first set and second set of transmit beams and are determined based on the received feedback.

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