Specific scheduling request

Patent metadata

Field	Value
Publication number	US-11785593-B2
Application number	US-202017032292-A
Country	US
Kind code	B2
Filing date	Sep 25, 2020
Priority date	Sep 27, 2019
Publication date	Oct 10, 2023
Grant date	Oct 10, 2023

Abstract

Methods, systems, and apparatus are presented for providing enhanced scheduling requests, e.g., in an IEEE 802.11 network. A client station (STA) may determine one or more minimum quality of service (QoS) metrics for supporting an application being implemented by the STA, and may determine minimum scheduling parameters to be implemented by an access point (AP) to achieve the minimum QoS. The STA may transmit to the AP a specific scheduling request indicating the minimum scheduling parameters. In response, the AP may schedule communication resources for the STA in accordance with the minimum scheduling resources.

First claim

What is claimed is:

1. A client station (STA) comprising:
wireless communication circuitry and
processor circuitry communicatively coupled to the wireless communication circuitry, the processor circuitry configured to cause the STA to:
determine a minimum quality of service metric for supporting a software application being implemented by the STA;
determine minimum scheduling parameters to be implemented by an access point (AP) in wireless communication with the STA to achieve the minimum quality of service metric;
transmit to the AP, via the wireless communication circuitry, a specific scheduling request indicating the minimum scheduling parameters;
receive from the AP, via the wireless communication circuitry, a resource allocation message, allocating communication resources to the STA based at least in part on the specific scheduling request; and
communicate with the AP, via the wireless communication circuitry, using the allocated communication resources.

2. The STA of claim 1 , wherein the specific scheduling request is included in an A-Control field of a medium-access control (MAC) header of a communication packet.

3. The STA of claim 2 , wherein the MAC header further includes an indication that the A-Control field includes the specific scheduling request.

4. The STA of claim 1 , wherein the specific scheduling request is included in an information element of a management frame.

5. The STA of claim 1 , wherein the specific scheduling request is transmitted in response to initiation of the software application by the STA.

6. The STA of claim 1 , wherein the minimum scheduling parameters include at least one of a minimum interval between trigger frames transmitted by the AP or a maximum interval between trigger frames transmitted by the AP, wherein the trigger frames carry resource allocation information for the STA.

7. The STA of claim 1 , wherein the minimum scheduling parameters include a minimum data throughput to be accommodated by the allocated communication resources.

8. The STA of claim 1 , wherein the specific scheduling request further indicates feedback regarding current allocation of communication resources to the STA.

9. The STA of claim 8 , wherein the feedback regarding current allocation of communication resources to the STA includes at least one of a request that the AP transmit trigger frames more frequently than currently scheduled, or a request that the AP set up a block-acknowledge agreement with the STA.

10. A method of performing communication resource scheduling, the method comprising:
by a client station (STA):
determining a minimum desired quality of service metric for wireless communication between the STA and an access point (AP);
determining minimum scheduling parameters to be implemented by the AP to achieve the minimum desired quality of service metric;
transmitting, to the AP, a specific scheduling request indicating the minimum scheduling parameters;
receiving, from the AP, a resource allocation message, allocating communication resources to the STA based at least in part on the specific scheduling request; and
communicating with the AP via the allocated communication resources.

11. The method of claim 10 , wherein the specific scheduling request further indicates feedback regarding current allocation of communication resources to the STA.

12. The method of claim 10 , wherein the specific scheduling request is included in an A-Control field of a MAC header of a communication packet.

13. The method of claim 12 , wherein the MAC header further includes an indication that the A-Control field includes the specific scheduling request.

14. The method of claim 10 , wherein the specific scheduling request is included in an information element of a management frame.

15. The method of claim 10 , wherein the minimum desired quality of service metric is a minimum acceptable quality of service metric needed to accommodate expected traffic parameters for an application being supported by the STA, wherein the specific scheduling request is transmitted in response to initiation of the application.

16. A non-transitory computer-readable memory medium storing software instructions executable by a processor of a client station (STA), wherein when executed the software instructions cause the STA to:
determine a minimum quality of service metric for supporting a software application being implemented by the STA;
determine minimum scheduling parameters to be implemented by an access point (AP) in wireless communication with the STA to achieve the minimum quality of service metric;
transmit, to the AP, a specific scheduling request indicating the minimum scheduling parameters;
receive, from the AP, a resource allocation message, allocating communication resources to the STA based at least in part on the specific scheduling request; and
communicate with the AP, using the allocated communication resources.

17. The non-transitory computer-readable memory medium of claim 16 , wherein the minimum scheduling parameters include at least one of a minimum interval between trigger frames transmitted by the AP or a maximum interval between trigger frames transmitted by the AP, wherein the trigger frames carry resource allocation information for the STA.

18. The non-transitory computer-readable memory medium of claim 16 , wherein the minimum scheduling parameters include a minimum data throughput to be accommodated by the allocated communication resources.

19. The non-transitory computer-readable memory medium of claim 16 , wherein the specific scheduling request further includes at least one of a request that the AP transmit trigger frames more frequently than currently scheduled, or a request that the AP set up a block-acknowledge agreement with the STA.

20. The non-transitory computer-readable memory medium of claim 16 , wherein the specific scheduling request further includes a request that the AP reduce a rate at which it performs link adaptation in response to failure to receive an acknowledgment message from the STA.

Assignees

• Apple Inc

Inventors

• Li Guoqing
• Dave Brajesh K
• Rana Shehla S
• Yu Yang
• Kumar Rajneesh

Classifications

• H04W72/1268 Primary

  of uplink data flows · CPC title

• H04L69/22

  Parsing or analysis of headers · CPC title

• H04W28/24

  Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service] · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title

• H04W72/21 Primary

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