CN-122002258-A - Method for enhanced low latency transmission in 802.11

Abstract

The present disclosure relates to methods for enhanced low latency transmission in 802.11. Methods, systems, and apparatus for enhanced low latency transmissions between an Access Point (AP) and a non-access point (non-AP). A method performed by a first Station (STA) may include transmitting first signaling to a second STA including a first indication associated with Low Latency (LL) capability. The method may also include receiving second signaling including a second indication from the second STA, and after receiving the second indication, transmitting third signaling to the second STA according to the LL capability. The method may also include receiving an acknowledgement associated with the third signaling from the second STA.

Inventors

• A. R. Hedayat
• M. abeoerstead
• M. Melnush
• SHI YONGHAO
• LIU YONG
• A. Bartra

Assignees

• 苹果公司

Dates

Publication Date

20260508

Application Date

20251104

Priority Date

20251015

Claims (20)

1. 1. A method for wireless communication, the method comprising: by a first Station (STA): transmitting first signaling including a first indication associated with Low Latency (LL) capability to a second STA; Receiving second signaling including a second indication from the second STA; Transmitting third signaling to the second STA according to the LL capability after receiving the second indication, and An acknowledgement associated with the third signaling is received from the second STA.
2. 2. The method of claim 1, wherein the first indication comprises an LL indicator set to a non-zero value.
3. 3. The method of claim 1, wherein the second indication comprises a Reverse Direction (RD) indicator set to a non-zero value.
4. 4. The method of claim 3, wherein the third signaling comprises the RD indicator set to the non-zero value.
5. 5. A method according to claim 3, the method further comprising: additional signaling including additional indications is sent to the second STA.
6. 6. The method of claim 5, wherein the additional indication comprises another RD indicator set to a value of zero.
7. 7. The method of claim 1, wherein the second signaling is received in one of: A data frame; Quality of service (QoS) null frames; clear To Send (CTS) frame, or A shared (TXS) frame is transmitted.
8. 8. The method of claim 1, the method further comprising: Exchanging one or more parameters associated with the LL session with the second STA, and The LL session is disabled at a time associated with one of the one or more parameters.
9. 9. The method of claim 1, wherein the first signaling is indicated in one of: Control Response Frame (CRF); a Block Acknowledgement (BA) frame; An Initial Control Response (ICR) frame, or Multi-STA BA (M-BA) frames.
10. 10. The method of claim 1, the method further comprising: initial signaling including an Initial Control Frame (ICF) is received prior to the first signaling.
11. 11. A method for wireless communication, the method comprising: by a first Station (STA): Transmitting an initial signaling to the second STA; Receive, from the second STA, first signaling comprising a first indication associated with Low Latency (LL) capability; Transmitting second signaling including a second indication to the second STA; receiving third signaling from the second STA according to the LL capability after transmitting the second indication, and Acknowledgement signaling is sent to the second STA in response to the third signaling.
12. 12. The method of claim 11, the method further comprising: Exchanging one or more parameters associated with the LL session with the second STA, and The LL session is disabled at a time associated with one of the one or more parameters.
13. 13. The method of claim 11, wherein the first indication comprises an LL indicator set to a non-zero value.
14. 14. The method of claim 11, wherein the second indication comprises a Reverse Direction (RD) indicator set to a non-zero value.
15. 15. The method of claim 14, wherein the third signaling comprises the RD indicator set to the non-zero value.
16. 16. A method for wireless communication, the method comprising: By an Access Point (AP): Receive respective first signaling from one or more respective Stations (STAs), the respective first signaling including one or more first indications associated with Low Latency (LL) capabilities; transmitting respective second signaling including one or more second indications to the one or more respective STAs; Receiving respective third signaling from the one or more respective STAs according to the LL capability, and And transmitting acknowledgement signaling to the one or more respective STAs in response to the respective third signaling.
17. 17. The method of claim 16, wherein the one or more respective STAs comprise non-enhanced multi-link single-radio (non EMLSR) STAs.
18. 18. The method of claim 17, wherein the respective second signaling is sent in: one or more Clear To Send (CTS) frames, the one or more CTS frames being successively transmitted to the one or more respective STAs in an order corresponding to the order in which the one or more first indications were received, or A Trigger Frame (TF), the Trigger Frame (TF) being transmitted to the one or more corresponding STAs.
19. 19. An apparatus for wireless communication, the apparatus comprising: A processor configured to perform the operations of the method according to any one of claims 1 to 18 when executing instructions stored in a memory.
20. 20. A non-transitory computer readable medium storing program instructions executable by one or more processors to perform the operations of the method of any one of claims 1 to 18.

Description

Method for enhanced low latency transmission in 802.11 Technical Field The present application relates to wireless communications, including techniques for wireless communications between wireless stations and/or access points in a wireless networking system. Description of related Art The use of wireless communication systems is rapidly growing. In addition, wireless communication technologies have evolved from voice-only communication to also include the transmission of data such as the internet and multimedia content. A common short-range/medium-range wireless communication standard is Wireless Local Area Networks (WLANs). Most modern WLANs are based on the IEEE 802.11 standard (and/or 802.11 for short) and sold under Wi-Fi brand name. The WLAN network links one or more devices to a wireless access point, which in turn provides connectivity to the wider area internet. In 802.11 systems, devices that are wirelessly connected to each other are referred to as "stations," "mobile stations," "user equipment," or simply STAs or UEs. The wireless station may be a wireless access point or a wireless client (and/or mobile station). An Access Point (AP), also known as a wireless router, acts as a base station for a wireless network. The AP transmits and receives radio frequency signals for communication with the wireless client device. The AP may also be coupled to the internet in a wired and/or wireless manner. The wireless client operating on the 802.11 network may be any of a variety of devices, such as a laptop, tablet, smart phone, smart watch, or stationary device (such as a desktop computer). The wireless client device is referred to herein as a user equipment (and/or UE for short). Some wireless client devices are also referred to herein collectively as mobile devices or mobile stations (although as noted above, the wireless client devices may also be stationary devices in general). The mobile electronic device may take the form of a smart phone, laptop or tablet computer that is typically carried by a user. Wearable devices (also referred to as accessory devices) are a newer form of mobile electronic device, examples including smart watches, earplugs, and smart glasses. Additionally, low cost, low complexity wireless devices intended for static or dynamic deployment are also rapidly increasing as part of developing "internet of things". In other words, the complexity, capabilities, traffic patterns, and other characteristics of the required devices are becoming more and more extensive. Some WLANs may utilize multi-link operation (MLO), for example, that uses multiple channels (e.g., links) concurrently. An MLO capable AP and/or STA may be referred to as a multi-link device (MLD). For example, an MLO capable AP may be referred to as an AP-MLD, and an MLO capable STA that does not act as an AP may be referred to as a non-AP MLD. Improvements in the art are desired. Disclosure of Invention Embodiments described herein relate to methods, systems, and apparatuses for enhanced low latency transmission between an Access Point (AP) and a non-access point (non-AP). In some embodiments, a method performed by a first Station (STA) may include transmitting first signaling to a second STA including a first indication associated with Low Latency (LL) capability. The method may also include receiving second signaling including a second indication from the second STA, and after receiving the second indication, transmitting third signaling to the second STA according to the LL capability. The method may also include receiving an acknowledgement associated with the third signaling from the second STA. According to some embodiments, the first indication may comprise a LL indicator set to a non-zero value. Additionally or alternatively, the second indication may include a Reverse Direction (RD) indicator set to a non-zero value, and the third signaling may include a RD indicator set to a non-zero value. In some embodiments, the method may further include transmitting additional signaling including additional indications to the second STA. Additionally or alternatively, according to some embodiments, the additional indication may include other RD indicators set to a value of zero. According to some embodiments, the second signaling may be received in one of a data frame, a quality of service (QoS) null frame, a Clear To Send (CTS) frame, or a transmit shared (TXS) frame. Additionally, according to some embodiments, the method may include exchanging, with the second STA, one or more parameters associated with the LL session. Further, the method may include disabling the LL session at a time associated with one of the one or more parameters. In some embodiments, the first signaling may be indicated in one of a Control Response Frame (CRF), a Block Acknowledgement (BA) frame, an Initial Control Response (ICR) frame, or a multi-STA BA (M-BA) frame. According to some embodiments, the method may include receiving initial signaling