Multi-link beamforming training techniques for 60 GHz wireless networks

Patent metadata

Field	Value
Publication number	US-9893786-B2
Application number	US-201514977542-A
Country	US
Kind code	B2
Filing date	Dec 21, 2015
Priority date	Aug 1, 2015
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

Abstract

Various embodiments may be generally directed to multi-link beamforming training techniques for 60 GHz wireless networks. In some embodiments, a 60 GHz-capable device in a 60 GHz wireless network may train wireless links with multiple other 60 GHz-capable devices simultaneously. In various embodiments, the multiple wireless links may be trained simultaneously using a multi-link beamforming training packet that comprises a format designed for simultaneous training of multiple wireless links. Other embodiments are described and claimed.

First claim

What is claimed is:

1. An apparatus, comprising:
a memory; and
logic for a wireless communication device, at least a portion of the logic comprised in circuitry coupled to the memory, the logic to:
identify a feedback order for a multi-link beamforming training packet, the multi-link beamforming training packet to comprise an extended control physical layer (PHY) header containing an information element to indicate a number of preambles comprised in a preamble sequence of the multi-link beamforming training packet;
determine a feedback transmission time for the wireless communication device based on the feedback order;
train a wireless link with a remote device based on one or more training fields comprised in the multi-link beamforming training packet; and
generate beamforming training feedback for transmission to the remote device at the feedback transmission time.

2. The apparatus of claim 1 , the multi-link beamforming training packet to comprise the preamble sequence and a header sequence, the header sequence to comprise a respective corresponding header for each preamble of the preamble sequence.

3. The apparatus of claim 2 , the logic to determine the feedback order based on an order of a plurality of headers comprised in the header sequence.

4. The apparatus of claim 2 , the preamble sequence to precede the header sequence within the multi-link beamforming training packet.

5. The apparatus of claim 2 , the preamble sequence interleaved with the header sequence within the multi-link beamforming training packet.

6. A system, comprising:
the apparatus of claim 1 ; and
at least one radio frequency (RF) transceiver.

7. An apparatus, comprising:
a memory; and
logic for a wireless communication device, at least a portion of the logic comprised in circuitry coupled to the memory, the logic to:
identify a plurality of links to be trained via a multi-link beamforming training procedure, each of the plurality of links to comprise a wireless link with a respective one of a plurality of remote devices;
generate a multi-link beamforming training packet for transmission during the multi-link beamforming training procedure, the multi-link beamforming training packet to comprise an extended control physical layer (PHY) header containing an information element to indicate a number of preambles comprised in a preamble sequence of the multi-link beamforming training packet; and
process beamforming training feedback received in response to the multi-link beamforming training packet according to a feedback order for the multi-link beamforming training packet.

8. The apparatus of claim 7 , the multi-link beamforming training packet to comprise the preamble sequence and a header sequence, the header sequence to comprise a respective corresponding header for each preamble of the preamble sequence.

9. The apparatus of claim 8 , an order of a plurality of headers within the header sequence to indicate the feedback order.

10. The apparatus of claim 8 , the preamble sequence to precede the header sequence within the multi-link beamforming training packet.

11. The apparatus of claim 8 , the preamble sequence interleaved with the header sequence within the multi-link beamforming training packet.

12. At least one non-transitory computer-readable storage medium comprising a set of instructions that, in response to being executed at a wireless communication device, cause the wireless communication device to:
identify a feedback order for a multi-link beamforming training packet, the multi-link beamforming training packet to comprise an extended control physical layer (PHY) header containing an information element to indicate a number of preambles comprised in a preamble sequence of the multi-link beamforming training packet;
determine a feedback transmission time for the wireless communication device based on the feedback order;
train a wireless link with a remote device based on one or more training fields comprised in the multi-link beamforming training packet; and
generate beamforming training feedback for transmission to the remote device at the feedback transmission time.

13. The at least one non-transitory computer-readable storage medium of claim 12 , the multi-link beamforming training packet to comprise the preamble sequence and a header sequence, the header sequence to comprise a respective corresponding header for each preamble of the preamble sequence.

14. The at least one non-transitory computer-readable storage medium of claim 13 , comprising instructions that, in response to being executed on the computing device, cause the computing device to determine the feedback order based on an order of a plurality of headers comprised in the header sequence.

15. The at least one non-transitory computer-readable storage medium of claim 13 , the preamble sequence to precede the header sequence within the multi-link beamforming training packet.

16. The at least one non-transitory computer-readable storage medium of claim 13 , the preamble sequence interleaved with the header sequence within the multi-link beamforming training packet.

17. At least one non-transitory computer-readable storage medium comprising a set of instructions that, in response to being executed at a wireless communication device, cause the wireless communication device to:
identify a plurality of links to be trained via a multi-link beamforming training procedure, each of the plurality of links to comprise a wireless link with a respective one of a plurality of remote devices;
generate a multi-link beamforming training packet for transmission during the multi-link beamforming training procedure, the multi-link beamforming training packet to comprise an extended control physical layer (PHY) header containing an information element to indicate a number of preambles comprised in a preamble sequence of the multi-link beamforming training packet; and
process beamforming training feedback received in response to the multi-link beamforming training packet according to a feedback order for the multi-link beamforming training packet.

18. The at least one non-transitory computer-readable storage medium of claim 17 , the multi-link beamforming training packet to comprise the preamble sequence and a header sequence, the header sequence to comprise a respective corresponding header for each preamble of the preamble sequence.

19. The at least one non-transitory computer-readable storage medium of claim 18 , an order of a plurality of headers within the header sequence to indicate the feedback order.

20. The at least one non-transitory computer-readable storage medium of claim 18 , the preamble sequence to precede the header sequence within the multi-link beamforming training packet.

21. The at least one non-transitory computer-readable storage medium of claim 18 , the preamble sequence interleaved with the header sequence within the multi-link beamforming training packet.

Assignees

• Intel Ip Corp

Inventors

• Kasher Assaf
• Trainin Solomon
• Maltsev Alexander

Classifications

• H04B7/0617 Primary

  for beam forming · CPC title

• H04B7/0452

  Multi-user MIMO systems · CPC title

• H04L69/22

  Parsing or analysis of headers · CPC title

• H04L69/323

  in the physical layer [OSI layer 1] · CPC title