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EP-4742570-A1 - PHYSICAL LAYER PROTOCOL DATA UNIT FORMAT ADAPTATION FOR ENHANCED LONG RANGE TRANSMISSION

EP4742570A1EP 4742570 A1EP4742570 A1EP 4742570A1EP-4742570-A1

Abstract

A station may send a data unit to an access point using an enhanced long-range format. After using an enhanced long-range format, the access point may determine that channel conditions have improved, for example, based on a signal strength measurement of the data unit. Subsequent data units may be sent without the enhanced long-range format, for example, based on the access point indicating the channel condition improvement.

Inventors

  • LANANTE, Leonardo Alisasis
  • KIM, JEONGKI
  • Dinan, Esmael Hejazi
  • BAYKAS, TUNCER
  • ERKUCUK, SERHAT

Assignees

  • Ofinno, LLC

Dates

Publication Date
20260513
Application Date
20251107

Claims (15)

  1. A method comprising: receiving, by an access point, a first frame indicating enablement of transmission using an enhanced long range (ELR) format; receiving a physical layer protocol data unit (PPDU) that is configured with the ELR format; and based on a signal measurement of the PPDU satisfying a threshold, sending a second frame indicating disablement of transmission using the ELR format.
  2. The method of claim 1, further comprising receiving, after sending the second frame, a second PPDU that is configured with a non-ELR format, wherein: the second frame comprises a high throughput (HT) control field comprising an indication of the disablement of transmission using the ELR format.
  3. The method of claim 1 or claim 2, wherein the signal measurement comprises at least one of: a receive signal strength indicator (RSSI); a signal to noise ratio (SNR); a signal to interference plus noise ratio (SINR); a received channel power indicator (RCPI); or an error vector magnitude (EVM).
  4. The method of any one of claims 1 to 3, wherein the ELR format comprises at least one mark symbol indicating at least one of: a basic service set (BSS) color of the PPDU; or a format of the PPDU.
  5. The method of any one of claims 1 to 4, wherein the first frame comprises at least one of: a quality of service (QoS) Data frame; a QoS Null frame; an action frame; or an (re)association request frame.
  6. The method of any one of claims 1 to 5, wherein the second frame comprises a quality of service (QoS) Data frame or a QoS Null frame.
  7. The method of any one of claims 1 to 6, wherein the PPDU comprises an initial control frame and the second frame comprises an initial control response frame.
  8. The method of any one of claims 1 to 7, wherein the indication indicates to use the non-ELR format for transmission to the access point.
  9. The method of any one of claims 1 to 8, wherein the non-ELR format comprises one of: a non-high throughput (HT) PPDU; an HT PPDU; a high efficiency (HE) single user (SU) PPDU; an HE multi-user (MU) PPDU; an extremely high throughput (EHT) MU PPDU; or a non-ELR ultra high throughput (UHR) PPDU.
  10. The method of any one of claims 1 to 9, further comprising: determining the signal measurement of the PPDU; and determining that the signal measurement of the PPDU satisfies the threshold by being greater than the threshold.
  11. The method of any one of claims 1 to 10, wherein the indicating disablement of transmission using the ELR format is active for a time duration after sending the second frame.
  12. The method of any one of claims 1 to 11, wherein the indicating disablement of transmission using the ELR format further indicates a modulation and coding scheme (MCS) feedback (MFB) and at least one of: the indicating disablement of transmission using the ELR format further indicates that the MFB comprises an unsolicited MFB based on the PPDU; or the MFB comprises an MCS indicating a data rate that is greater than or equal to a data rate of a second PPDU that is configured with a non-ELR format.
  13. A computing device comprising: one or more processors; and memory storing instructions that, when executed by the one or more processors, cause the computing device to perform the method of any one of claims 1 to 12.
  14. A system comprising: an access point configured to perform the method of any one of claims 1 to 12; and a station configured to send the first frame and receive the second frame.
  15. A computer-readable medium storing instructions that, when executed, cause performance of the method of any one of claims 1-12.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application claims the benefit of U.S. Provisional Application No. 63/717,996, filed on November 8, 2024. The above referenced application is hereby incorporated by reference in its entirety. BACKGROUND An access point communicates with stations. Data units are communicated between the access point and stations. SUMMARY The following summary presents a simplified summary of certain features. The summary is not an extensive overview and is not intended to identify key or critical elements. Access points may communicate with computing devices, such as stations, by sending data, such as a physical layer protocol data unit. For at least some transmissions, a station may send an extended long-range physical layer protocol data unit which may increase a likelihood of a successful transmission to an access point, for example, if channel conditions are insufficient for a non-extended long-range format and/or if a distance between the station and the access point is greater than or equal to a threshold distance. After sending data using an extended long-range format, the access point may determine that transmission may use a non-extended long-range format, for example, based on improved channel conditions indicated by a signal strength measurement of received data. Subsequent data may be sent without an extended long-range format, for example, based on the access point indicating, to the station, a channel condition improvement. Such an indication may help the station to determine when data may be transmitted without an extended long-range format, which may provide advantages such as increased spatial reuse by stations, reduced channel blocking due to unnecessary use of extended long-range data, and/or improved network performance such as in overlapping basic service set networks. These and other features and advantages are described in greater detail below. BRIEF DESCRIPTION OF THE DRAWINGS Examples of several of the various embodiments of the present disclosure are described herein with reference to the drawings. FIG. 1 shows example wireless communication networks.FIG. 2 shows a block diagram showing example implementations of a station (STA) and an access point (AP).FIG. 3 shows examples of a Physical Layer Protocol Data Unit (PPDU), such as a non-High Throughput (non-HT) PPDU.FIG. 4 shows examples of a PPDU, such as a High Efficiency (HE) Single User (SU) PPDU.FIG. 5 shows an example of a PPDU, such as an Extremely High Throughput (EHT) Multi-user (MU) PPDU.FIG. 6 shows an example universal signal (U-SIG) field.FIG. 7 shows an example extended/enhanced long range (ELR) PPDU.FIG. 8 shows an example of a link adaptation operation.FIG. 9 shows an example high efficiency (HE) link adaptation control subfield.FIG. 10 shows an example operating mode (OM) control subfield.FIG. 11 shows an example channel blocking effect of ELR transmissions.FIG. 12 shows an example application of ELR transmissions.FIG. 13 shows an example of a PPDU format adaptation operation.FIG. 14 shows an example of a PPDU format adaptation operation.FIG. 15 shows an example of a PPDU format adaptation operation.FIG. 16 shows an example of a PPDU format adaptation operation.FIG. 17 shows an example of sending an indication of ELR PPDU disablement.FIG. 18 shows an example of receiving an indication of ELR PPDU disablement.FIG. 19 shows an example of a PPDU format operation.FIG. 20 shows example elements of a computing device that may be used to implement any of the various devices described herein. DETAILED DESCRIPTION The accompanying drawings and descriptions provide examples. It is to be understood that the examples shown in the drawings and/or described are non-exclusive, and that features shown and described may be practiced in other examples. Examples are provided for operation of wireless communication systems. FIG. 1 shows example wireless communication network 100. The example wireless communication networks may be a wireless local area network (WLAN) 102. The WLAN 102 may comprise an Institute of Electrical and Electronic Engineers (IEEE) 802.11 infra-structure network, or any other type of communication network. The WLAN 102 may comprise one or more basic service sets (BSSs) 110-1 and 110-2. BSSs 110-1 and 110-2 may each include a set of an access point (AP or AP station (STA)) and at least one station (STA or non-AP STA). For example, BSS 110-1 includes an AP 104-1 and a STA 106-1, and BSS 110-2 includes an AP 104-2 and STAs 106-2 and 106-3. The AP and the at least one STA in a BSS may be configured to perform an association procedure to communicate with each other. The WLAN 102 may comprise a distribution system (DS) 130. DS 130 may be configured to connect BSS 110-1 and BSS 110-2. DS 130 may enable an extended service set (ESS) 150 by being configured to connect BSS 110-1 and BSS 110-2. The ESS 150 may be a network comprising one or more Aps (e.g., Aps 104-1 and AP 104-2) that may be connec