EP-4736557-A1 - BACK-TO-BACK TRANSMISSIONS VIA A MULTI-HOP RELAY PATH USING FLOW-SPECIFIC RESOURCE RESERVATION

Abstract

This disclosure provides methods, components, devices and systems for back-toback transmissions via a multi-hop relay path using flow-specific resource reservation. Some aspects more specifically relate to flow-specific transmission opportunity (TXOP) sharing and/or orthogonal channel reservation in combination with a flow-specific sequence of time slots. In implementations in which flow-specific TXOP sharing is employed in combination with a flow-specific sequence of time slots, one or more wireless communication devices may determine whether a shared TXOP supersedes the flow-specific sequence of time slots in accordance with whether the shared TXOP is associated with a same flow as the sequence of time slots. In implementations in which orthogonal channel reservation is employed in combination with a flow-specific sequence of time slots, each wireless communication device of a multi-hop relay path may receive an indication of or otherwise be configured with a frequency channel via which to transmit.

Inventors

• KATAR, SRINIVAS
• HUANG, XIAOLONG
• HAZARIKA, Gyanranjan
• SHUKLA, MANISH
• HOMCHAUDHURI, SANDIP

Assignees

• QUALCOMM INCORPORATED

Dates

Publication Date

20260506

Application Date

20240614

Claims (20)

1. 1. A first wireless communication device, comprising: one or more memories storing processor-executable code; and one or more processors coupled with the one or more memories and individually or collectively configured to, when executing the code, cause the first wireless communication device to: receive information associated with a sequence of time slots, wherein the sequence of time slots corresponds to a traffic flow associated with a multi-hop relay path; transmit, during a transmission opportunity of the first wireless communication device, data associated with the traffic flow; and transmit a frame indicating a sharing of the transmission opportunity with a second wireless communication device of the multi-hop relay path and indicating, in accordance with the transmission opportunity at least partially overlapping with the sequence of time slots, an identifier corresponding to the traffic flow.
2. 2. The first wireless communication device of claim 1, wherein the one or more processors are individually or collectively configured to, when executing the code, cause the first wireless communication device to: receive a channel access priority' mapping associated with the sequence of time slots, wherein the channel access priority mapping indicates that each respective wireless communication device of the multi-hop relay path has channel access priority during a respective time slot of the sequence of time slots, and wherein the sharing of the transmission opportunity supersedes the channel access priority mapping in accordance with the frame indicating the identifier corresponding to the traffic flow.
3. 3. The first wireless communication device of claim 2, wherein the one or more processors are individually or collectively configured to, when executing the code, cause the first wireless communication device to: transmit the frame to the second wireless communication device in accordance with the multi-hop relay path, wherein, in accordance with the channel access priority mapping associated with the sequence of time slots, the first wireless communication device is scheduled for a first time slot of the sequence of time slots and the second wireless communication device is scheduled for a second time slot of the sequence of time slots immediately subsequent to the first time slot.
4. 4. The first wireless communication device of claim 1, wherein the one or more processors are individually or collectively configured to, when executing the code, cause the first wireless communication device to: transmit the frame to indicate, to the second wireless communication device, that the data associated with the traffic flow is to be relayed in accordance with the multi-hop relay path during the transmission opportunity.
5. 5. The first wireless communication device of claim 1, wherein the one or more processors are individually or collectively configured to, when executing the code, cause the first wireless communication device to: receive, from the second wireless communication device during the transmission opportunity, a trigger frame soliciting the data associated with the traffic flow, wherein transmitting the data is in association with receiving the trigger frame.
6. 6. The first wireless communication device of claim 5, wherein the one or more processors are individually or collectively configured to, when executing the code, cause the first wireless communication device to: transmit, to a third wireless communication device, a second trigger frame soliciting the data associated with the traffic flow; and receive the data associated with the traffic flow from the third wireless communication device in association with transmitting the second trigger frame, wherein transmitting the frame indicating the sharing of the transmission opportunity with the second wireless communication device is in association with receiving the data from the third wireless communication device.
7. 7. The first wireless communication device of claim 1, wherein the one or more processors are individually or collectively configured to, when executing the code, cause the first wireless communication device to: receive the information associated with the sequence of time slots from a controller of the multi-hop relay path.
8. 8. The first wireless communication device of claim 1, wherein one or more channel access rules associated with the sequence of time slots are inapplicable during the transmission opportunity shared by the first wireless communication device in accordance with the frame indicating the identifier corresponding to the traffic flow and the sequence of time slots also corresponding to the traffic flow.
9. 9. The first wireless communication device of claim 1, wherein the information associated with the sequence of time slots indicates a frequency channel mapping associated with the multi-hop relay path, the frequency channel mapping indicating that each respective wireless communication device of the multi-hop relay path uses a respective frequency channel of a plurality of frequency channels.
10. 10. The first wireless communication device of claim 1, wherein the frame is an allocation request frame or a trigger frame.
11. 11. The first wireless communication device of claim 1 , wherein the frame indicates the identifier corresponding to the traffic flow via an information element.
12. 12. The first wireless communication device of claim 1, wherein the sequence of time slots is associated with a sequence of flow-specific back-to-back time domain multiple access slot reservations.
13. 13. A first wireless communication device, comprising: one or more memories storing processor-executable code; and one or more processors coupled with the one or more memories and individually or collectively configured to, when executing the code, cause the first wireless communication device to: receive information associated with a sequence of time slots, wherein the sequence of time slots corresponds to a traffic flow associated with a multi-hop relay path; receive a frame indicating a sharing of a transmission opportunity with the first wireless communication device and indicating an identifier corresponding to the traffic flow; and communicate, during the transmission opportunity, data associate with the traffic flow in accordance with the frame indicating the identifier corresponding to the traffic flow.
14. 14. The first wireless communication device of claim 13, wherein the one or more processors are individually or collectively configured to, when executing the code, cause the first wireless communication device to: receive a channel access priority' mapping associated with the sequence of time slots, wherein the channel access priority mapping indicates that each respective wireless communication device of the multi-hop relay path has channel access priority during a respective time slot of the sequence of time slots, and wherein the sharing of the transmission opportunity supersedes the channel access priority mapping in accordance with the frame indicating the identifier corresponding to the traffic flow.
15. 15. The first wireless communication device of claim 14, wherein the one or more processors are individually or collectively configured to, when executing the code, cause the first wireless communication device to: receive the frame from a second wireless communication device in accordance with the multi-hop relay path, wherein, in accordance with the channel access priority mapping associated with the sequence of time slots, the first wireless communication device is scheduled for a first time slot of the sequence of time slots and the second wireless communication device is scheduled for a second time slot of the sequence of time slots immediately prior to the first time slot.
16. 16. The first wireless communication device of claim 13, wherein the one or more processors are individually or collectively configured to, when executing the code, cause the first wireless communication device to: receive the data associated with the traffic flow from a second wireless communication device; and transmit the data during the transmission opportunity in association with a relaying of the data from the second wireless communication device to a third wireless communication device.
17. 17. The first wireless communication device of claim 13, wherein the one or more processors are individually or collectively configured to, when executing the code, cause the first wireless communication device to: transmit, in association with receiving the frame indicating the sharing of the transmission opportunity, a trigger frame soliciting the data associated with the traffic flow; and receive the data in association with transmitting the trigger frame.
18. 18. The first wireless communication device of claim 13, wherein the one or more processors are individually or collectively configured to, when executing the code, cause the first wireless communication device to: receive the information associated with the sequence of time slots from a controller of the multi-hop relay path.
19. 19. The first wireless communication device of claim 13, wherein one or more channel access rules associated with the sequence of time slots are inapplicable during the transmission opportunity in accordance with the frame indicating the identifier corresponding to the traffic flow and the sequence of time slots also corresponding to the traffic flow.
20. 20. The first wireless communication device of claim 13, wherein the information associated with the sequence of time slots indicates a frequency channel mapping associated with the multi-hop relay path, the frequency channel mapping indicating that each respective wireless communication device of the multi-hop relay path uses a respective frequency channel of a plurality of frequency channels.

Description

BACK-TO-BACK TRANSMISSIONS VIA A MULTI-HOP RELAY PATH USING FLOW-SPECIFIC RESOURCE RESERVATION CROSS REFERENCE [0001] The present Application for Patent claims the benefit of U.S. Patent Application No. 18/344,011 by KAT AR et al., entitled “BACK-TO-BACK TRANSMISSIONS VIA A MULTI-HOP RELAY PATH USING FLOW-SPECIFIC RESOURCE RESERVATION,” filed June 29, 2023, assigned to the assignee hereof, and expressly incorporated by reference herein. TECHNICAL FIELD [0002] This disclosure relates to wireless communication and, more specifically, to back-to-back transmissions via a multi-hop relay path using flow-specific resource reservation. DESCRIPTION OF THE RELATED TECHNOLOGY [0003] A wireless local area network (WLAN) may be formed by one or more wireless access points (APs) that provide a shared wireless communication medium for use by multiple client devices also referred to as wireless stations (STAs). The basic building block of a WLAN conforming to the Institute of Electrical and Electronics Engineers (IEEE) 802.11 family of standards is a Basic Service Set (BSS), which is managed by an AP. Each BSS is identified by a Basic Service Set Identifier (BSSID) that is advertised by the AP. An AP periodically broadcasts beacon frames to enable any STAs within wireless range of the AP to establish or maintain a communication link with the WLAN. SUMMARY [0004] The systems, methods, and devices of this disclosure each have several innovative aspects, no single one of which is solely responsible for the desirable attributes disclosed herein. [0005] One innovative aspect of the subject matter described in this disclosure can be implemented in a first wireless communication device. The first wireless communication device may include one or more memories storing processor-executable code, and one or more processors coupled with the one or more memories. The one or more processors may individually or collectively individually or collectively configured to, when executing the code, cause the first wireless communication device to receive information associated with a sequence of time slots, where the sequence of time slots corresponds to a traffic flow associated with a multi-hop relay path, transmit, during a transmission opportunity of the first wireless communication device, data associated with the traffic flow, and transmit a frame indicating a sharing of the transmission opportunity with a second wireless communication device of the multi-hop relay path and indicating, in accordance with the transmission opportunity at least partially overlapping with the sequence of time slots, an identifier corresponding to the traffic flow. [0006] Another innovative aspect of the subject matter described in this disclosure can be implemented in a method for wireless communication by a first wireless communication device. The method may include receiving information associated with a sequence of time slots, where the sequence of time slots corresponds to a traffic flow associated with a multi-hop relay path, transmitting, during a transmission opportunity of the first wireless communication device, data associated with the traffic flow, and transmitting a frame indicating a sharing of the transmission opportunity with a second wireless communication device of the multi-hop relay path and indicating, in accordance with the transmission opportunity at least partially overlapping with the sequence of time slots, an identifier corresponding to the traffic flow. [0007] Another innovative aspect of the subject matter described in this disclosure can be implemented in a first wireless communication device. The first wireless communication device may include means for receiving information associated with a sequence of time slots, where the sequence of time slots corresponds to a traffic flow associated with a multi-hop relay path, means for transmitting, during a transmission opportunity of the first wireless communication device, data associated with the traffic flow, and means for transmitting a frame indicating a sharing of the transmission opportunity with a second wireless communication device of the multi-hop relay path and indicating, in accordance with the transmission opportunity at least partially overlapping with the sequence of time slots, an identifier corresponding to the traffic flow. [0008] Another innovative aspect of the subject matter described in this disclosure can be implemented in a non-transitory computer-readable medium storing code for wireless communication at a first wireless communication device. The code may include instructions executable by one or more processors, individually or collectively, to receive information associated with a sequence of time slots, where the sequence of time slots corresponds to a traffic flow associated with a multi-hop relay path, transmit, during a transmission opportunity of the first wireless communication device, data associated with the traffic flow, and transmit a frame ind