Method and apparatus for beamforming training using frames

Patent metadata

Field	Value
Publication number	US-10243635-B2
Application number	US-201715643995-A
Country	US
Kind code	B2
Filing date	Jul 7, 2017
Priority date	Jul 22, 2016
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

A method and apparatus for beamforming training using frames is provided. A device generates a frame comprising header data and beamforming data. The beamforming data is organized into units of beamforming training (TRN) fields. The header data comprises numbers indicating: a first type of TRN fields in each of the units of the beamforming data, to be transmitted using same antenna settings used for the header data; a second type of TRN fields in each of the units to be transmitted using different antenna settings than used for the header data; and how the first type of TRN fields are organized into respective groups of the second type of TRN fields in each of the units that are to be consecutively transmitted using same respective antenna settings, the respective antenna settings changing with each successive group of the third number of the second type of TRN fields.

First claim

What is claimed is:

1. A method in a wireless communication assembly of a first wireless communication device configured to perform a beamforming refinement procedure with a second wireless communication device, the method comprising:
generating, at a controller of the first wireless communication device, a frame comprising: header data and beamforming data,
the beamforming data organized into one or more units of beamforming training (TRN) fields,
the header data comprising: a first number (“P”) of a first type of TRN fields in each of the one or more units of the beamforming data, the first type of TRN fields to be transmitted using same antenna settings used for the header data; a second number (“M”) of a second type of TRN fields in each of the one or more units of the beamforming data, the second type of TRN fields to be transmitted using different antenna settings than used for the header data; and a third number (“N”) of the second type of TRN fields organized into a respective group of the second type of TRN fields in each of the one or more units that are to be consecutively transmitted using same respective antenna settings, the respective antenna settings changing with each successive group of the third number (“N”) of the second type of TRN fields;
the beamforming data further comprising: the one or more units of the TRN fields as defined by the first number, the second number and the third number; and the first number of the first type of TRN fields further appended to a last unit; and

transmitting, using a radio of the first wireless communication device, the frame to the second wireless communication device.

2. The method of claim 1 , wherein the second number (“M”) of the second type of TRN fields follow the first number (“P”) of the first type of TRN fields in each of the one or more units.

3. The method of claim 1 , wherein the frame is generated according to a request received from the second wireless communication device, the request comprising the first number, the second number and the third number.

4. The method of claim 3 , wherein the request further includes a requested number of the one or more units.

5. The method of claim 1 , wherein the second number (“M”) is an integer multiple of the third number (“N”).

6. The method of claim 1 , wherein the second type of TRN fields comprise transmit TRN fields.

7. The method of claim 1 , wherein the frame further includes a third type of TRN fields, the third type of TRN fields comprising receive TRN fields.

8. The method of claim 1 , wherein respective values for each of P, M and N comprise one of: P=2, M=6, N=3; or P=2, M=8, N=1.

9. The method of claim 1 , wherein the frame comprises one of a control frame, a data frame, and a management frame.

10. The method of claim 1 , further comprising negotiating values of the first number, the second number and the third number with the second wireless communication device.

11. A wireless communication assembly of a first wireless communication device configured to perform a beamforming refinement procedure with a second wireless communication device, the wireless communication assembly comprising:
a controller and a radio, the controller configured to:
generate a frame comprising: header data and beamforming data,
the beamforming data organized into one or more units of beamforming training (TRN) fields,
the header data comprising: a first number (“P”) of a first type of TRN fields in each of the one or more units of the beamforming data, the first type of TRN fields to be transmitted using same antenna settings used for the header data; a second number (“M”) of a second type of TRN fields in each of the one or more units of the beamforming data, the second type of TRN fields to be transmitted using different antenna settings than used for the header data; and a third number (“N”) of the second type of TRN fields organized into a respective group of the second type of TRN fields in each of the one or more units that are to be consecutively transmitted using same respective antenna settings, the respective antenna settings changing with each successive group of the third number (“N”) of the second type of TRN fields;
the beamforming data further comprising: the one or more units of the TRN fields as defined by the first number, the second number and the third number; and the first number of the first type of TRN fields further appended to a last unit; and

transmit, using the radio, the frame to the second wireless communication device.

12. The wireless communication assembly of claim 11 , wherein the second number (“M”) of the second type of TRN fields follow the first number (“P”) of the first type of TRN fields in each of the one or more units.

13. The wireless communication assembly of claim 11 , wherein the frame is generated according to a request received from the second wireless communication device, the request comprising the first number, the second number and the third number.

14. The wireless communication assembly of claim 13 , wherein the request further includes a requested number of the one or more units.

15. The wireless communication assembly of claim 11 , wherein the second number (“M”) is an integer multiple of the third number (“N”).

16. The wireless communication assembly of claim 11 , wherein the second type of TRN fields comprise transmit TRN fields.

17. The wireless communication assembly of claim 11 , wherein the frame further includes a third type of TRN fields, the third type of TRN fields comprising receive TRN fields.

18. The wireless communication assembly of claim 11 , wherein respective values for each of P, M and N comprise one of: P=2, M=6, N=3; or P=2, M=8, N=1.

19. The wireless communication assembly of claim 11 , wherein the frame comprises one of a control frame, a data frame, and a management frame.

20. The wireless communication assembly of claim 11 , wherein the controller is further configured to negotiate values of the first number, the second number and the third number with the second wireless communication device.

Assignees

• Peraso Tech Inc

Inventors

• Hansen Christopher James
• Cheng Gary
• Andonieh Joseph
• Lynch Bradley Robert

Classifications

• H04B7/0417

  Feedback systems · CPC title

• H04W72/046

  the resource being in the space domain, e.g. beams · CPC title

• H04W48/12

  using downlink control channel · CPC title

• H04W74/002

  Transmission of channel access control information · CPC title

• H01Q3/26

  varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture ({H01Q3/12,} H01Q3/22, H01Q3/24 take precedence) · CPC title