Apparatus, system, and method of wireless communication during a short-inter-frame-space (SIFS)

Patent metadata

Field	Value
Publication number	US-12355688-B2
Application number	US-202117561528-A
Country	US
Kind code	B2
Filing date	Dec 23, 2021
Priority date	Dec 23, 2021
Publication date	Jul 8, 2025
Grant date	Jul 8, 2025

Abstract

In one example, a first wireless communication station (STA) may be configured to identify an estimated end of a frame transmitted from a second STA to an Access point (AP); and to transmit a transmission to the AP within a Short-Inter-Frame-Space (SIFS) beginning at the estimated end of the frame from the second STA. For example, a duration of the transmission may be no longer than the SIFS. For example, the transmission to the AP may be on a same wireless communication channel as the frame from the second STA. In another example, an AP may be configured to process a frame from a first STA; and to process a transmission from a second STA, the transmission from the second STA received within a SIFS beginning at an end of the frame from the first STA.

First claim

What is claimed is:

1. An apparatus comprising circuitry configured to cause a first wireless communication station (STA) to:
identify an estimated end of a frame transmitted from a second STA to an Access point (AP); and
transmit a transmission to the AP within a Short-Inter-Frame-Space (SIFS) beginning at the estimated end of the frame from the second STA, wherein a duration of the transmission is no longer than the SIFS, the transmission to the AP is on a same wireless communication channel as the frame from the second STA.

2. The apparatus of claim 1 , wherein the transmission to the AP is configured to indicate a request to transmit data from the first STA to the AP.

3. The apparatus of claim 2 configured to cause the first STA to attempt to receive from the AP a response to the request to transmit data from the first STA to the AP.

4. The apparatus of claim 3 , wherein the response comprises a trigger frame from the AP, the trigger frame to trigger an Uplink (UL) transmission from the first STA.

5. The apparatus of claim 3 , wherein the response comprises an acknowledgment (ACK) from the AP to acknowledge the request to transmit data from the first STA to the AP.

6. The apparatus of claim 5 configured to cause the first STA to attempt to receive the ACK from the AP within an other SIFS, the other SIFS following an ACK from the AP to the second STA.

7. The apparatus of claim 2 , wherein the transmission to the AP comprises a predefined signaling sequence to indicate the request to transmit data from the first STA to the AP.

8. The apparatus of claim 2 , wherein the transmission to the AP comprises an indication of at least one parameter corresponding to the data from the first STA.

9. The apparatus of claim 8 , wherein the indication of at least one parameter corresponding to the data from the first STA comprises an indication of at least one of a data size of the data from the first STA, or a Quality of Service (QoS) requirement.

10. The apparatus of claim 1 , wherein the transmission to the AP comprises a data frame from the first STA.

11. The apparatus of claim 1 configured to cause the first STA to identify the estimated end of the frame from the second STA based on a header of the frame from the second STA.

12. The apparatus of claim 1 configured to cause the first STA to identify the estimated end of the frame from the second STA based on a detected signal level of the frame from the second STA.

13. The apparatus of claim 1 , wherein a difference between the SIFS and the duration of the transmission is at least a predefined time duration.

14. The apparatus of claim 1 , wherein the duration of the transmission is at least 2 microseconds shorter than the SIFS.

15. The apparatus of claim 1 , wherein the SIFS is less than 20 microseconds.

16. The apparatus of claim 1 , wherein the SIFS is 16 microseconds.

17. The apparatus of claim 1 comprising a radio to transmit the transmission to the AP.

18. The apparatus of claim 17 comprising one or more antennas connected to the radio, and a processor to execute instructions of an operating system of the first STA.

19. A product comprising one or more tangible computer-readable non-transitory storage media comprising computer-executable instructions operable to, when executed by at least one processor, enable the at least one processor to cause a first wireless communication station (STA) to:
identify an estimated end of a frame transmitted from a second STA to an Access point (AP); and
transmit a transmission to the AP within a Short-Inter-Frame-Space (SIFS) beginning at the estimated end of the frame from the second STA, wherein a duration of the transmission is no longer than the SIFS, the transmission to the AP is on a same wireless communication channel as the frame from the second STA.

20. The product of claim 19 , wherein the transmission to the AP is configured to indicate a request to transmit data from the first STA to the AP.

21. The product of claim 19 , wherein the transmission to the AP comprises a data frame from the first STA.

22. An apparatus comprising circuitry configured to cause an Access Point (AP) to:
process a frame from a first wireless communication station (STA); and
process a transmission from a second STA, the transmission from the second STA received within a Short-Inter-Frame-Space (SIFS) beginning at an end of the frame from the first STA, wherein a duration of the transmission from the second STA is no longer than the SIFS, the transmission from the second STA is on a same wireless communication channel as the frame from the first STA.

23. The apparatus of claim 22 configured to cause the AP to identify based on the transmission from the second STA a request from the second STA to transmit data to the AP.

24. The apparatus of claim 23 configured to cause the AP to transmit to the second STA a response to the request from the second STA.

25. The apparatus of claim 22 , wherein the transmission from the second STA comprises a data frame from the second STA.

Assignees

• Intel Corp

Inventors

• Azizi Shahrnaz
• Stacey Robert

Classifications

• H04L5/0055

  Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861) · CPC title

• H04L5/0064

  Rate requirement of the data, e.g. scalable bandwidth, data priority · CPC title

• H04L5/0037 Primary

  Inter-user or inter-terminal allocation · CPC title

• H04L5/0091

  Signalling for the administration of the divided path, e.g. signalling of configuration information · CPC title

• H04L1/0023

  characterised by the signalling · CPC title