Information transmission method, network device, and user equipment

Patent metadata

Field	Value
Publication number	US-12225448-B2
Application number	US-202318460356-A
Country	US
Kind code	B2
Filing date	Sep 1, 2023
Priority date	Jun 3, 2016
Publication date	Feb 11, 2025
Grant date	Feb 11, 2025

Abstract

Embodiments of this application provide an information transmission method, a network device, and a user equipment. The method provided in this application includes: sending, by a network device, a broadcast frame that includes first duration information and second duration information that are of A-BFT (Association Beamforming Training); receiving a frame sent by a first user equipment in a timeslot randomly selected from a first time range; and receiving a frame sent by a second user equipment in a timeslot randomly selected from a second time range. According to the embodiments of this application, beamforming training efficiency can be improved.

First claim

What is claimed is:

1. A network apparatus, comprising:
a processor; and
a storage medium storing instructions that, when executed by the processor, cause the network apparatus to:
send a broadcast frame, wherein the broadcast frame comprises first duration information and second duration information, wherein the first duration information is configured to indicate a first time range of association beamforming training (A-BFT) for a first user apparatus corresponding to the 802.11ad standard, wherein the second duration information is configured to indicate a second time range of A-BFT for a second user apparatus corresponding to the 802.11ay standard, and wherein a duration of the second time range is equal to or greater than a duration of the first time range;
receive a first-type frame from the first user apparatus in a first timeslot randomly selected from the first time range; and
receive a second-type frame from the second user apparatus in a second timeslot randomly selected from the second time range, wherein a transmission duration of the first-type frame is equal to or greater than a transmission duration of the second-type frame;
wherein the first duration information is located in an A-BFT length field of a beacon interval (BI) control field in the broadcast frame, and the second duration information is located in at least one bit in the BI control field other than the A-BFT length field.

2. The network apparatus according to claim 1 , wherein the second-type frame is a short sector sweep (SSSW) frame.

3. The network apparatus according to claim 1 , wherein the broadcast frame further comprises frame quantity indication information, wherein the frame quantity indication information is located in a frame of sector sweep (FSS) field of a beacon interval (BI) control field in the broadcast frame.

4. The network apparatus according to claim 3 , wherein the frame quantity indication information is configured to indicate a frame quantity of the second-type frame.

5. The network apparatus according to claim 3 , wherein the frame quantity indication information is further configured to indicate a frame quantity of the first-type frame.

6. A second user equipment, comprising:
a processor; and
a storage medium storing instructions that, when executed by the processor, cause the second user equipment to:
receive a broadcast frame from a network apparatus, wherein the broadcast frame comprises first duration information and second duration information, wherein the first duration information is configured to indicate a first time range of association beamforming training (A-BFT) for a first user equipment corresponding to the 802.11ad standard, wherein the second duration information is configured to indicate a second time range of A-BFT for the second user equipment corresponding to the 802.11ay standard, and wherein a duration of the second time range is equal to or greater than a duration of the first time range;
determine the second time range and randomly select a second timeslot from the second time range; and
send a second-type frame to the network apparatus in the second timeslot, wherein a transmission duration of a first-type frame transmitted in a first timeslot randomly selected from the first time range is equal to or greater than a transmission duration of the second-type frame;
wherein the first duration information is located in an A-BFT length field of a beacon interval (BI) control field in the broadcast frame, and the second duration information is located in at least one bit in the BI control field other than the A-BFT length field.

7. The second user equipment according to claim 6 , wherein the second-type frame is a short sector sweep (SSSW) frame.

8. The second user equipment according to claim 6 , wherein the broadcast frame further comprises frame quantity indication information, wherein the frame quantity indication information is located in a frame of sector sweep (FSS) field of a beacon interval (BI) control field in the broadcast frame.

9. The second user equipment according to claim 8 , wherein the frame quantity indication information is configured to indicate a frame quantity of the second-type frame.

10. A non-transitory computer-readable storage medium storing instructions that, when executed, cause a network apparatus to:
send a broadcast frame, wherein the broadcast frame comprises first duration information and second duration information, wherein the first duration information is configured to indicate a first time range of association beamforming training (A-BFT) for a first user apparatus corresponding to the 802.11ad standard, wherein the second duration information is configured to indicate a second time range of A-BFT for a second user apparatus corresponding to the 802.11ay standard, and wherein a duration of the second time range is equal to or greater than a duration of the first time range;
receive a first-type frame from the first user apparatus in a first timeslot randomly selected from the first time range; and
receive a second-type frame from the second user apparatus in a second timeslot randomly selected from the second time range, wherein a transmission duration of the first-type frame is equal to or greater than a transmission duration of the second-type frame;
wherein the first duration information is located in an A-BFT length field of a beacon interval (BI) control field in the broadcast frame, and the second duration information is located in at least one bit in the BI control field other than the A-BFT length field.

11. The non-transitory computer-readable storage medium according to claim 10 , wherein the second-type frame is a short sector sweep (SSSW) frame.

12. The non-transitory computer-readable storage medium according to claim 10 , wherein the broadcast frame further comprises frame quantity indication information, wherein the frame quantity indication information is located in a frame of sector sweep (FSS) field of a beacon interval (BI) control field in the broadcast frame.

13. The non-transitory computer-readable storage medium according to claim 12 , wherein the frame quantity indication information is configured to indicate a frame quantity of the second-type frame.

14. The non-transitory computer-readable storage medium according to claim 12 , wherein the frame quantity indication information is further configured to indicate a frame quantity of the first-type frame.

Assignees

• Huawei Tech Co Ltd

Inventors

• Zhou Pei
• Long Yan
• Han Xiao
• Lin Yingpei

Classifications

• H04W72/0446 Primary

  Resources in time domain, e.g. slots or frames · CPC title

• H04W16/28

  using beam steering · CPC title

• H04L5/005

  of common pilots, i.e. pilots destined for multiple users or terminals · CPC title

• H04B7/0617 Primary

  for beam forming · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title