Methods of using aggregated control subfield for traffic indication signaling

Patent metadata

Field	Value
Publication number	US-12177713-B2
Application number	US-202117326295-A
Country	US
Kind code	B2
Filing date	May 20, 2021
Priority date	May 26, 2020
Publication date	Dec 24, 2024
Grant date	Dec 24, 2024

Abstract

A traffic indication signaling method includes: setting a control information subfield in an aggregated control (A-Control) subfield by traffic indication information, wherein the traffic indication information contains timing information of uplink (UL) traffic; and transmitting a frame that includes the A-Control subfield to an access point (AP). For example, the UL traffic is required by a latency sensitive traffic application.

First claim

What is claimed is:

1. A traffic indication signaling method comprising:
setting a control information subfield in an aggregated control (A-Control) subfield by traffic indication information, wherein the traffic indication information contains timing information of uplink (UL) traffic; and
transmitting a frame that includes the A-Control subfield to an access point (AP);
wherein the traffic indication information is set and signaled by a non-AP station and comprises:
a parameter indicating a delta time from a time instant of the frame carrying the A-Control subfield to a later time instant at which the UL traffic is to be transmitted;
the traffic indication signaling method further comprises:
according to the traffic indication information signaled by the non-AP station, allocating resources, by the AP, to trigger UL transmission in time to meet latency requirements of the UL traffic.

2. The traffic indication signaling method of claim 1 , wherein the traffic indication information carried by the A-Control subfield is informative only.

3. The traffic indication signaling method of claim 1 , wherein the UL traffic is required by a latency sensitive traffic application.

4. The traffic indication signaling method of claim 1 , wherein the UL traffic is periodic UL traffic.

5. The traffic indication signaling method of claim 4 , wherein the periodic UL traffic is UL non-burst traffic.

6. The traffic indication signaling method of claim 5 , wherein the traffic indication information further comprises:
a parameter indicating a traffic identifier (ID) of the UL traffic;
a parameter indicating whether to activate or deactivate the UL traffic corresponding to the traffic ID;
a parameter indicating an access category (AC) of the UL traffic;
a parameter indicating a period of the UL traffic;
a parameter indicating a traffic size of the UL traffic;
a parameter indicating a period scaling factor; and
a parameter indicating a traffic size scaling factor.

7. The traffic indication signaling method of claim 4 , wherein the periodic UL traffic is UL burst traffic.

8. The traffic indication signaling method of claim 7 , wherein the traffic indication information further comprises:
a parameter indicating a traffic identifier (ID) of the UL traffic;
a parameter indicating a traffic size of the UL traffic;
a parameter indicating a period of the UL traffic; and
a parameter indicating repetitions of the UL traffic.

9. The traffic indication signaling method of claim 8 , wherein the traffic indication information further comprises:
a parameter indicating a traffic size scaling factor.

10. The traffic indication signaling method of claim 1 , wherein the UL traffic is UL one-time burst traffic.

11. The traffic indication signaling method of claim 10 , wherein the traffic indication information further comprises:
a parameter indicating a traffic identifier (ID) of the UL traffic; and
a parameter indicating a traffic size of the UL traffic.

12. The traffic indication signaling method of claim 11 , wherein the traffic indication information further comprises:
a parameter indicating a traffic size scaling factor.

13. The traffic indication signaling method of claim 1 , wherein the traffic indication information is transmitted to the AP through unsolicited transmission.

14. The traffic indication signaling method of claim 1 , wherein the traffic indication information is transmitted to the AP in response to a polling frame sent by the AP.

15. The traffic indication signaling method of claim 14 , wherein the polling frame is a buffer status report polling (BSRP) frame.

16. The traffic indication signaling method of claim 15 , wherein the non-AP station reports the traffic indication information and a buffer status report (BSR) in response to receiving the BSRP frame.

17. A traffic indication signaling method comprising:
receiving a frame that includes an aggregated control (A-Control) subfield from a non-access-point (non-AP) station; and
decoding a control information subfield in the A-Control subfield to obtain traffic indication information, wherein the traffic indication information contains timing information of uplink (UL) traffic;
wherein the traffic indication information is set and signaled by the non-AP station and comprises:
a parameter indicating a delta time from a time instant of the frame carrying the A-Control subfield to a later time instant at which the UL traffic is to be transmitted;
the traffic indication signaling method further comprises:
according to the traffic indication information signaled by the non-AP station, allocating resources, by the AP, to trigger UL transmission in time to meet latency requirements of the UL traffic.

18. The traffic indication signaling method of claim 17 , wherein the UL traffic is UL non-burst traffic, and the traffic indication information further comprises:
a parameter indicating a traffic identifier (ID) of the UL traffic;
a parameter indicating whether to activate or deactivate of the UL traffic corresponding to the traffic ID;
a parameter indicating an access category (AC) the UL traffic;
a parameter indicating a period of the UL traffic;
a parameter indicating a traffic size of the UL traffic;
a parameter indicating a period scaling factor; and
a parameter indicating a traffic size scaling factor.

19. The traffic indication signaling method of claim 17 , wherein the UL traffic is UL burst traffic, and the traffic indication information further comprises:
a parameter indicating a traffic identifier (ID) of the UL traffic; and
a parameter indicating a traffic size of the UL traffic.

20. A traffic indication signaling method comprising:
setting a control information subfield in an aggregated control (A-Control) subfield by traffic indication information, wherein the traffic indication information contains timing information of uplink (UL) traffic; and
transmitting a frame that includes the A-Control subfield to an access point (AP);
wherein the UL traffic needs to be transmitted before a time instant, and the traffic indication information is set and signaled by a non-AP station and comprises a parameter that is set based at least partly on the time instant;
the traffic indication signaling method further comprises:
according to the traffic indication information signaled by the non-AP station, allocating resources, by the AP, to trigger UL transmission in time to meet latency requirements of the UL traffic.

Assignees

• Mediatek Inc

Inventors

• Hsu Chien-Fang
• Lu Kai Ying
• Seok Yongho
• Yee James Chih-Shi

Classifications

• H04W28/0278

  using buffer status reports (dynamic wireless traffic scheduling definition H04W72/12) · CPC title

• H04W28/0268

  using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR] (negotiating SLA or negotiating QoS H04W28/24) · CPC title

• H04W28/0236 Primary

  radio quality, e.g. interference, losses or delay · CPC title

• H04W72/21 Primary

  in the uplink direction of a wireless link, i.e. towards the network · CPC title