Enhanced beamforming training in a wireless local area networks

Patent metadata

Field	Value
Publication number	US-11050472-B2
Application number	US-201916563773-A
Country	US
Kind code	B2
Filing date	Sep 6, 2019
Priority date	Sep 11, 2015
Publication date	Jun 29, 2021
Grant date	Jun 29, 2021

Abstract

Apparatus, computer readable media, and methods for enhanced beamforming training in a wireless local area network are disclosed. An apparatus of a access point or station is disclosed. The apparatus including processing circuitry where the processing circuitry is configured to encode an EBRP packet comprising a first portion comprising an indication of a first number of transmit antenna training settings (N-TX), and an indication of a second number of receive training subfields per N-TX settings (N-RX), and a second portion comprising a third number of training subfields. The third number may be less than or equal to N-TX times N-RX. The processing circuitry may be configured to cause the first portion of the EBRP packet to be transmitted and cause the second portion to be transmitted, where two or more of the third number of training subfields are to be transmitted simultaneously using different antennas and orthogonal sequences.

First claim

What is claimed is:

1. An apparatus of an access point or station, the apparatus comprising: memory; and processing circuitry coupled to the memory, the processing circuitry configured to:
encode an enhanced beam refining protocol (EBRP) packet comprising a first portion comprising an indication of a first number of transmit antenna training settings (N-TX), and an indication of a second number of receive training subfields per N-TX settings (N-RX), and a second portion comprising a third number of training subfields, wherein the third number is less than or equal to N-TX times N-RX;
generate signalling to configure transceiver circuitry of the access point or station to transmit the first portion of the EBRP packet; and
generate signalling to configure the transceiver circuitry of the access point or station to transmit the second portion comprising the third number of training subfields, wherein the third number of training subfields are to be transmitted simultaneously using different antennas of a plurality of antennas and orthogonal sequences.

2. The apparatus of claim 1 , wherein the processing circuitry is configured to encode the EBRP packet as a physical layer convergence procedure (PLCP) protocol data unit (PPDU) comprising, in a first portion: a legacy short training field (L-STF); a legacy channel training field (L-CEF); a legacy header (L-Header) field; and an EDMG-Header-A field.

3. A non-transitory computer-readable storage medium that stores instructions for execution by processing circuitry of an access point or station, the processing circuitry to:
encode an enhanced beam refining protocol (EBRP) packet comprising a first portion comprising an indication of a first number of transmit antenna training settings (N-TX), and an indication of a second number of receive training subfields per N-TX settings (N-RX), and a second portion comprising a third number of training subfields, wherein the third number is less than or equal to N-TX times N-RX;
generate signalling to configure transceiver circuitry of the access point or station to transmit the first portion of the EBRP packet; and
generate signalling to configure the transceiver circuitry of the access point or station to transmit the second portion comprising the third number of training subfields, wherein the third number of training subfields are to be transmitted simultaneously using different antennas of a plurality of antennas and orthogonal sequences.

4. The non-transitory computer-readable storage medium of claim 3 , wherein the processing circuitry is configured to encode the EBRP packet as a physical layer convergence procedure (PLCP) protocol data unit (PPDU) comprising, in a first portion: a legacy short training field (L-STF); a legacy channel training field (L-CEF); a legacy header (L-Header) field; and an EDMG-Header-A field.

5. A wireless communication device configured to operate as an access point or station, the wireless communication device comprising:
transceiver circuitry coupled to a plurality of antennas; and
the processing circuitry to:
encode an enhanced beam refining protocol (EBRP) packet comprising a first portion comprising an indication of a first number of transmit antenna training settings (N-TX), and an indication of a second number of receive training subfields per N-TX settings (N-RX), and a second portion comprising a third number of training subfields, wherein the third number is less than or equal to N-TX times N-RX;
generate signalling to configure the transceiver circuitry to transmit the first portion of the EBRP packet; and
generate signalling to configure the transceiver circuitry to transmit the second portion comprising the third number of training subfields, wherein the third number of training subfields are to he transmitted simultaneously using different antennas of the plurality and orthogonal sequences.

6. The wireless communication device of claim 5 , wherein the processing circuitry is configured to encode the EBRP packet as a physical layer convergence procedure (PLCP) protocol data unit (PPM) comprising, in a first portion: a legacy short training field (L-STF); a legacy channel training field (L-CEF); a legacy header (L-Header) field; and an EDMG-Header-A field.

Assignees

• Intel Ip Corp

Inventors

• Kasher Assaf
• Cordeiro Carlos
• Maltsev Alexander
• Lomayev Artyom

Classifications

• H04B7/06958 Primary

  Multistage beam selection, e.g. beam refinement · CPC title

• H04B7/0617 Primary

  for beam forming · CPC title

• H04L69/22

  Parsing or analysis of headers · CPC title

• H04B7/0413

  MIMO systems · CPC title

• H04B7/0639

  Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection · CPC title