CONCURRENT MIMO BEAMFORMING TRAINING IN mmW WLAN SYSTEMS
First Claim
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.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems, methods, and instrumentalities are disclosed for concurrent multiple input multiple output (MIMO) beamforming training. A first station (STA) may send a training announcement frame to a second STA. The training announcement frame may indicate a training period and/or a concurrent transmit and receive training. The first STA may send a first set of training frames via a first set of transmit beams and a second set of training frames via a second set of transmit beams to the second STA. The second STA may send feedback, associated with the first and second transmit beams, to the first STA. The first STA may perform a down selection training, for example, when the feedback includes a down selection request. The down selection training may be performed during the down selection training period. The down-selected set of transmit beams may be determined based on the received feedback.
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Citations
28 Claims
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method performed by a first station (STA), the method comprising:
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sending, to a second STA, a training announcement frame that indicates a training period and a concurrent transmit and receive training; sending, 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 in the training period, wherein each of the training frames comprises a header, a MAC body, and one or more training fields; sending, to the second STA during the training TXOP, a second set of training frames via a second set of receive beams in a second time slot in the training period; receiving, 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 of beam identifications (IDs); send, to the second STA during the training TXOP, a feedback frame that includes the feedback; and performing 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, 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. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
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13-20. -20. (canceled)
Specification