Qualcomm Incorporated

Other

Alfred Asterjadhi

George Cherian

Abhishek Pramod Patil

Simone Merlin

Sai Yiu Duncan Ho

Yanjun Sun

Bin Tian

Yan Zhou

Maarten Menzo Wentink

Gwendolyn Denise Barriac

Lochan Verma

Gaurang Naik

Santosh Paul Abraham

Abdel Karim Ajami

Stephen Jay Shellhammer

Venkata Ramanan Venkatachalam Jayaraman

Sameer Vermani

Zhi Quan

Gang Ding

Jialing Li Chen

Sandip HomChaudhuri

Lin Yang

Amin Jafarian

Youhan Kim

Qingjiang Tian

Dung Ngoc Doan

Jouni Kalevi Malinen

Yongchun Xiao

James Simon Cho

Ravi H Gidvani

Hemanth Sampath

Padmanabhan Venkataraman Karthic

Raja Banerjea

Alireza Raissinia

Guido Robert Frederiks

Pradeep Kumar Yenganti

Srinivas Katar

Vikram Phogat

Tushnim Bhattacharyya

Arul Davidson Emmanuel

Rahul Malik

Rahul Tandra

Tao Tian

Eric Pierre Rebeiz

Solomon B Trainin

Vincent Knowles Jones, Iv

Arjun Bharadwaj

Xiaolong Huang

Xiaoxin Zhang

Zhanfeng Jia

Mohammad Hossein Taghavi Nasrabadi

Naveen Kumar Kakani

Geert Arnout Awater

Peyman Razaghi

Sumeet Kumar

Rahul Dangui

Nitin Ravinder

Raamkumar Balamurthi

Venkata Savitri Pravallika Tallapragada

Varshini Rajesh

Qiang Fan

Abhishek Pramod

Menzo Wentink

Mohammad H Taghavi Nasrabadi

Jason Young

Geert Awater

Kedar Durgadas Shirali

Jouni Malinen

James Cho

Certain aspects of the present disclosure provide a method for wireless communication at a first station. The method generally includes establishing at least one communication link with a second station and transmitting, to a first MLD, an indication of the communication link and a time period in which the first station will operate on the communication link.

Coordinating multi-link operation with communication links

Methods, systems, and devices for wireless communications are described. A first wireless device and a second wireless device (e.g., access points, stations) may support transmission opportunity (TXOP) sharing procedures. The second wireless device may transmit a frame indicating a capability of the second wireless device to support one or more triggered TXOP sharing modes. The second wireless device may transmit an indication (e.g., a frame) indicating to change support for the triggered TXOP sharing modes based on the capability. The change may indicate to suspend, resume, disable, or enable the triggered TXOP sharing modes. For example, the second wireless device may transmit an indication to suspend support of a first triggered TXOP sharing mode that enables the second wireless device to perform peer-to-peer transmissions. Accordingly, the first wireless device may trigger the second wireless device to communicate according to the supported triggered TXOP sharing modes.

Dynamic selection of triggered transmission opportunity sharing modes

This disclosure provides methods, devices and systems for generating enhanced trigger frames. Some implementations more specifically relate to trigger frame designs that support gains in data throughput achievable in accordance with the IEEE 802.11be amendment, and future generations, of the IEEE 802.11 standard. In some implementations, an enhanced trigger frame may be used to solicit a non-legacy trigger-based (TB) physical layer protocol convergence protocol (PLCP) protocol data unit (PPDU) from one or more wireless stations (STAs). In some implementations, the enhanced trigger frame may be configurable to support multiple versions of the IEEE 802.11 standard. For example, an enhanced trigger frame may be configured in accordance with a legacy trigger frame format or a non-legacy trigger frame format. Thus, when configured in accordance with the legacy trigger frame format, the enhanced trigger frame can also be used to a legacy TB PPDU from one or more STAs.

Enhanced trigger frame

This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for protecting latency-sensitive communications among multi-link devices (MLDs). An access point (AP) MLD may establish multiple communication links with a non-AP MLD and schedule a restricted target wake time (r-TWT) service period (SP) on one of the links (the 'r-TWT link'). In some aspects, when a transmit opportunity (TXOP) acquired on a non-r-TWT link overlaps the r-TWT SP, the TXOP may be extended to support an exchange of latency-sensitive traffic on the non-r-TWT link. In some other aspects, any TXOPs occurring on non-r-TWT links may be terminated prior to the start of the r-TWT SP so that latency-sensitive traffic can be exchanged on the r-TWT link during the SP. An AP MLD also may schedule SPs on multiple communication links. In some aspects, the AP MLD may transfer a TWT agreement between the communication links.

Low latency solutions for restricted target wake time (R-TWT) during multi-link operation (MLO)

This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for signaling between an access point (AP) multi-link device (MLD) and a non-AP MLD that support multi-link communication in a wireless local area network (WLAN). In some implementations, a multi-link association may include a first link (referred to as an anchor link) and one or more other links (referred to as auxiliary links). The signaling may include control information to activate or deactivate auxiliary links dynamically based on communication load, throughput requirements, or quality of service (QOS). The signaling also may include requests, acknowledgments, or negotiation regarding multi-link connections. Furthermore, signaling and timing information may be used to coordinate when auxiliary links are used for communication or when to promote an auxiliary link to an anchor link.

Signaling for multi-link communication in a wireless local area network (WLAN)

This disclosure provides systems, methods, and apparatuses for wireless communication performed by a wireless communication device. An example wireless communication device includes an access point (AP) multi-link device (MLD). The AP MLD transmits a beacon frame to a wireless station (STA) MLD, the beacon frame including a plurality of AP medium access control (MAC) addresses of respective APs belonging to the AP MLD. The AP MLD receives an association request from the STA MLD, the association request including a plurality of STA MAC addresses of respective STAs belonging to the STA MLD. The AP MLD generates, during a handshake operation with the STA MLD, one or more encryption keys configured to encrypt communications between the AP MLD and the STA MLD. The AP MLD verifies the plurality of STA MAC addresses based at least in part on the one or more encryption keys.

Multi-link wireless communication security

Methods, systems, and devices for wireless communication at a multi-link device are described. A first multi-link device (MLD) may communicate with a second MLD in accordance with the techniques depicted herein. For instance, the second MLD may transmit an indication of at least a portion of a beacon interval timeline for communications between the second MLD and one or more first MLDs on a first radio frequency link. In some examples, the beacon interval timeline may include at least one of a beacon transmit interval, and one or more service periods, channel access over a second radio frequency link being via the one or more service periods. A service period may be scheduled for communications on the second radio frequency link. The second MLD may then communicate in accordance with at least one of the beacon transmit interval and the one or more service periods.

Techniques for channel access in wireless communications systems

Methods, systems, and devices for wireless communications are described. A first wireless device (e.g., station (STA), access point (AP)) may transmit to a second wireless device during a service period, an initiating frame using a transmit beam that is based on a first beam training procedure performed between the devices prior to the service period. The first wireless device may perform a second beam training procedure during the service period based on an absence of a response frame from the second wireless device, based on an indication within the response frame received from the second wireless device, or based on identification of a change in a wireless channel relative to a previous beam training interval or previous service period. The first wireless device may then communicate one or more messages with the second wireless device using one or more beams that are based on the second beam training procedure.

Beam training techniques in WiFi frequency bands

Certain aspects of the present disclosure provide techniques for wireless communication at a station, generally including obtaining signaling indicating a resolution of a target wake time (TWT) field, determining a start time of a TWT service period (SP) based on the indicated resolution, and taking action based on the determined start time of the TWT SP.

Synchronization of target wakeup times

This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for high frequency multi-link support systems operation. In some aspects, an access point (AP) multi-link device (MLD) and a non-AP MLD may use a first radio frequency link to support and facilitate communications using a second radio frequency link, where such a second radio frequency link may otherwise be associated with access constraints or difficulties. For example, the first radio frequency link may be a sub-7 gigahertz (GHz) link and the second radio frequency link may be a 3.5 GHz, 45 GHz, or 60 GHz link. The AP MLD may transmit, to the non-AP MLD via the first radio frequency link, identifying and control information associated with the second radio frequency link. The non-AP MLD and the AP MLD may use the identifying and control information to communicate data via the second radio frequency link.

High frequency multi-link support systems operation

Techniques for improved spatial reuse for wireless local area network (WLAN) networks are described. An access point (AP) may win a contention to a wireless medium and obtain a transmission opportunity (TXOP). The AP may perform a procedure to identify a group of un-managed APs for participation in spatial reuse opportunities for synchronous transmission over the TXOP. The AP may perform the procedure using over-the-air signaling. The AP may transmit a spatial reuse (SR) poll frame to one or more un-managed APs of the network, either sequentially or as part of a multiple-AP procedure. The AP may receive an SR response frame, or directly measure potential interference of a station (STA) serviced by one or more un-managed APs, and select a group of APs for coordinated reuse over the TXOP. The AP may select the group of APs based on one or more criteria for coordinated reuse.

Spatial reuse for WLAN networks

An apparatus has a memory and one or more processors coupled to the memory. The processor(s) is configured to transmit a first message indicating a first machine learning capability of the first wireless device. The processor(s) is also configured to receive, from a second wireless device, a second message indicating a second machine learning capability of the second wireless device. The processor(s) is further configured to communicate information associated with a machine learning model for use between the first wireless device and the second wireless device based at least in part on the second machine learning capability and the first machine learning capability. The processor(s) is also configured to communicate with the second wireless device based at least in part on the machine learning model.

Machine learning framework for wireless local area networks (WLANs)

A wireless station (STA) operating as a non-simultaneous transmit-receive (NSTR) soft access point (AP) multi-link device (MLD) is associated with a primary link and a non-primary link. The NSTR softAP MLD transmits, on only the primary link, a frame including a complete profile of the primary link and indicating a complete profile of the non-primary link. The respective complete profiles of the primary link and the non-primary link each include capabilities, operation parameters, and other discovery information. The frame can include fields and elements that carry the complete profile of the primary link, and can include a multi-link (ML) element that indicates the complete profile of the non-primary link. The NSTR softAP MLD can receive or determine an update to the operation parameters of the non-primary link, and can transmit, on the primary link, an indication of the update to the operation parameters of the non-primary link.

Non-simultaneous transmit-receive (nSTR) soft access point (AP) multi-link device (MLD)

Methods, systems, and devices for wireless communications are described. Described techniques relate to a soft access point (AP) in a multi-link operation including a first radio frequency link for control communications and a second radio frequency link for data communications. Described techniques further relate to a transfer of an AP role in a wireless local area network operating in accordance with an multi-link operation. Described techniques further provide for assisting, at an AP (which may be a soft AP), peer to peer communications between non-AP multi-link devices (MLDs) in a WLAN operating in accordance with an MLO.

Soft access point and peer to peer operation

This disclosure provides methods, devices and systems for transmitting and receiving, between an access point (AP) and one or more stations (STAs) in a basic service set (BSS), within a 3.5 GHz bandwidth. In some examples, the AP may generate a first advertisement frame comprising information configured to enable one or more communication devices to associate with the apparatus for wireless communications via a first channel in a first operating band. In some examples, the AP may output the first advertisement frame for transmission according to a first periodic interval.

Standalone and supplemental spectrum operations

Growing community of inventors

San Diego, CA, United States of America

Alfred Asterjadhi