CN-122003946-A - Frame exchange sequence and Network Allocation Vector (NAV) protection

Abstract

Certain aspects provide a method for wireless communication at a first wireless node. The method generally includes outputting, for transmission to a second wireless node, a first frame indicating one or more candidate nodes with which a TXOP may be shared, the one or more candidate nodes including the second wireless node, performing a frame exchange with one or more third wireless nodes sharing a first BSS with the first wireless node, outputting, for transmission to the second wireless node, a second frame indicating a portion of the TXOP to be shared with the second wireless node, the second frame being output for transmission after the frame exchange, and obtaining, from the second wireless node, a third frame indicating that the TXOP is being returned to the first wireless node.

Inventors

• A.P. Patil
• G. Cheryan
• NAIK GAAURI
• A. Astegadi
• S.Y.D.He

Assignees

• 高通股份有限公司

Dates

Publication Date

20260508

Application Date

20240919

Priority Date

20231020

Claims (20)

1. 1. An apparatus for wireless communication, the apparatus comprising: at least one processor; A memory coupled to the at least one processor, and Instructions stored in the memory and executable by the at least one processor to cause the apparatus to: Outputting, for transmission to a first wireless node, a first frame indicating one or more candidate nodes with which a transmission opportunity (TXOP) can be shared, the one or more candidate nodes including the first wireless node; performing a frame exchange with one or more second wireless nodes, the one or more second wireless nodes sharing a first Basic Service Set (BSS) with the apparatus; outputting a second frame indicating a portion of the TXOP to be shared with the first wireless node for transmission to the first wireless node, the second frame being output for transmission after the frame exchange, and A third frame is obtained from the first wireless node indicating that the TXOP is being returned to the apparatus.
2. 2. The apparatus of claim 1, wherein the first frame is configured to indicate each candidate node of the one or more candidate nodes based on one or more identifiers.
3. 3. The apparatus of claim 1, wherein the first frame indicates a length of the TXOP.
4. 4. The apparatus of claim 1, wherein the second frame indicates a duration of the portion of a TXOP shared with the first wireless node.
5. 5. The apparatus of claim 1, wherein the instructions stored in the memory and executable by the at least one processor further cause the apparatus to: obtaining a buffer status associated with the first wireless node, and The second frame is generated based on the buffer status.
6. 6. The apparatus of claim 1, wherein the first frame is configured to at least one of: causing an intra-BSS Network Allocation Vector (NAV) to be set for the one or more second wireless nodes belonging to the first BSS, or Causing a basic NAV to be set for one or more third wireless nodes belonging to at least one second BSS different from the first BSS.
7. 7. The apparatus of claim 1, wherein the second frame is configured to at least one of: Causing a first intra-BSS NAV to be set for the one or more second wireless nodes belonging to the first BSS; Causing a second intra-BSS NAV to be set for one or more third wireless nodes belonging to a second BSS associated with the first wireless node, or Causing a basic NAV to be set for one or more fourth wireless nodes belonging to at least one third BSS different from the first BSS and also different from the second BSS.
8. 8. The apparatus of claim 7, wherein the third frame is configured to reset a NAV within the second BSS.
9. 9. The apparatus of claim 7, wherein the instructions stored in the memory and executable by the at least one processor further cause the apparatus to: outputting a fourth frame for resetting the NAV in the first BSS for transmission, and A fifth frame indicating another portion of the TXOP to be shared with a third wireless node for transmission is output, the fifth frame being output for transmission after the fourth frame is output for transmission.
10. 10. The device of claim 1, wherein the first frame or the second frame indicates at least one of a communication category, a traffic priority, or a traffic type for which the portion of the TXOP is to be used.
11. 11. The apparatus of claim 1, wherein the first frame or the second frame indicates one or more third wireless nodes with which the first wireless node is to communicate using the shared portion of the TXOP.
12. 12. The apparatus of claim 1, wherein the second frame comprises a TA field set to an identifier of the apparatus and a RA field set to an identifier of the first wireless node.
13. 13. The apparatus of claim 1, wherein the third frame comprises a TA field set to an identifier of the first wireless node.
14. 14. The apparatus of claim 1, further comprising at least one transceiver configured to transmit the first frame, wherein the apparatus is configured as an access point.
15. 15. An apparatus for wireless communication, the apparatus comprising: at least one processor; A memory coupled to the at least one processor, and Instructions stored in the memory and executable by the at least one processor to cause the apparatus to: Obtaining, from a first wireless node, a first frame indicating at least one of the device or one or more candidate nodes with which a transmit opportunity (TXOP) can be shared; Preparing for frame exchange with one or more second wireless nodes in response to obtaining the first frame, the one or more second wireless nodes sharing a first Basic Service Set (BSS) with the apparatus; obtaining, from the first wireless node, a second frame indicating that a portion of the TXOP is to be shared with the device; Performing said frame exchange with said one or more second wireless nodes after obtaining said second frame, and A third frame is output indicating that the TXOP is being returned to the first wireless node for transmission to the first wireless node.
16. 16. The apparatus of claim 15, wherein the first frame is configured to indicate each candidate node of the one or more candidate nodes based on one or more identifiers.
17. 17. The apparatus of claim 15, wherein the first frame indicates a length of the TXOP, and wherein preparation for the frame exchange is based on the length of the TXOP.
18. 18. The apparatus of claim 15, wherein the second frame indicates a duration of the portion of a TXOP that is shared with the first wireless node, and wherein a duration of the frame exchange is less than or equal to the duration of the portion of the TXOP.
19. 19. The apparatus of claim 15, wherein the instructions stored in the memory and executable by the at least one processor further cause the apparatus to output a buffer status associated with the apparatus for transmission.
20. 20. The apparatus of claim 15, wherein the first frame is configured to at least one of: causing an intra-BSS Network Allocation Vector (NAV) to be set for one or more third wireless nodes belonging to a second BSS associated with the first wireless node, or Causing a basic NAV to be set for one or more fourth wireless nodes belonging to at least one third BSS different from the second BSS.

Description

Frame exchange sequence and Network Allocation Vector (NAV) protection Cross Reference to Related Applications The present application claims priority from U.S. patent application Ser. No. 18/491,621, filed 10/20 in 2023, which is hereby incorporated by reference. Technical Field The present disclosure relates generally to wireless communications, and more particularly to techniques for scheduling transmit opportunity (TXOP) sharing scenarios. Background A Wireless Local Area Network (WLAN) may be formed of one or more wireless Access Points (APs) that provide a shared wireless communication medium for use by a plurality of client devices, also referred to as wireless Stations (STAs). The basic building block of WLANs conforming to the Institute of Electrical and Electronics Engineers (IEEE) 802.11 family of standards is the Basic Service Set (BSS) managed by an AP. Each BSS is identified by a Basic Service Set Identifier (BSSID) advertised by the AP. The AP periodically broadcasts beacon frames to enable any STA within wireless range of the AP to establish or maintain a communication link with the WLAN. Disclosure of Invention The systems, methods, and devices of the present disclosure each have several innovative aspects, no single one of which is solely responsible for the desirable attributes disclosed herein. Certain aspects provide an apparatus for wireless communication. The apparatus generally includes at least one processor, memory coupled with the at least one processor, and instructions stored in the memory and executable by the at least one processor to cause the apparatus to output, for transmission to a first wireless node, a first frame indicating one or more candidate nodes with which a transmission opportunity (TXOP) may be shared, the one or more candidate nodes including the first wireless node, perform a frame exchange with one or more second wireless nodes that share a first Basic Service Set (BSS) with the apparatus, output, for transmission to the first wireless node, a second frame indicating a portion of the TXOP to be shared with the first wireless node, the second frame output for transmission after the frame exchange, and obtain, from the first wireless node, a third frame indicating that the TXOP is being returned to the apparatus. Certain aspects provide an apparatus for wireless communication. The apparatus generally includes at least one processor, memory coupled with the at least one processor, and instructions stored in the memory and executable by the at least one processor to cause the apparatus to obtain a first frame from a first wireless node indicating at least one of one or more candidate nodes with which the apparatus may share a TXOP, prepare for a frame exchange with one or more second wireless nodes sharing a first BSS with the apparatus in response to obtaining the first frame, obtain a second frame from the first wireless node indicating that a portion of the TXOP is to be shared with the apparatus, perform the frame exchange with the one or more second wireless nodes after obtaining the second frame, and output a first frame indicating that the op is being returned to the first wireless node for transmission to the first wireless node. Certain aspects provide a method for wireless communication at a first wireless node. The method generally includes outputting, for transmission to a second wireless node, a first frame indicating one or more candidate nodes with which a TXOP may be shared, the one or more candidate nodes including the second wireless node, performing a frame exchange with one or more third wireless nodes sharing a first BSS with the first wireless node, outputting, for transmission to the second wireless node, a second frame indicating a portion of the TXOP to be shared with the second wireless node, the second frame being output for transmission after the frame exchange, and obtaining, from the second wireless node, a third frame indicating that the TXOP is being returned to the first wireless node. Certain aspects provide a method for wireless communication at a first wireless node. The method generally includes obtaining a first frame from a second wireless node indicating at least one of one or more candidate nodes with which the first wireless node may share a TXOP, preparing for frame exchange with one or more third wireless nodes sharing a first Basic Service Set (BSS) with the first wireless node in response to obtaining the first frame, obtaining a second frame from the second wireless node indicating that a portion of the TXOP is to be shared with the first wireless node, performing the frame exchange with the one or more third wireless nodes after obtaining the second frame, and outputting a third frame indicating that the TXOP is being returned to the second wireless node for transmission to the second wireless node. The details of one or more implementations of the subject matter described in this disclosure are set forth in the ac