Qualcomm Incorporated

Sai Yiu Duncan Ho

George Cherian

Abhishek Pramod Patil

Alfred Asterjadhi

Yanjun Sun

Gaurang Naik

Abdel Karim Ajami

Lochan Verma

Peter S Gaal

Arnaud Meylan

Juan Montojo

Aleksandar Damnjanovic

Edward George Tiedemann, Jr

Ragulan Sinnarajah

Yongbin Wei

Brian Michael Buesker

Wanshi Chen

Jelena Damnjanovic

Shailesh Maheshwari

Francesco Grilli

Jouni Kalevi Malinen

Nathan Edward Tenny

Masato Kitazoe

Etienne Francois Chaponniere

Durga Prasad Malladi

Jun Wang

Peerapol Tinnakornsrisuphap

Parag Arun Agashe

Ramin Rezaiifar

Bibhu P Mohanty

Etan Gur Cohen

Peter Anthony Barany

Fatih Ulupinar

Xiaolong Huang

Madhavan Srinivasan Vajapeyam

Rashid Ahmed Akbar Attar

Sandip HomChaudhuri

Philip Michael Hawkes

Alkinoos Hector Vayanos

Vikram Phogat

Bharat Bhushan

Tushnim Bhattacharyya

Tao Luo

Gavin Bernard Horn

Rajat Prakash

Hemanth Sampath

Miguel Griot

Soo Bum Lee

Lin Yang

Valentin Alexandru Gheorghiu

Thomas Klingenbrunn

Lorenzo Casaccia

Roy Franklin Quick, Jr

Nikolai K N Leung

Vanitha Aravamudhan Kumar

Gang Xiao

Yongchun Xiao

Rajesh Kumar

Xiaoxia Zhang

Bin Tian

Maarten Menzo Wentink

Sanjiv Nanda

Aziz Gholmieh

Anand Palanigounder

Min Wang

Srinivas Katar

Qingjiang Tian

Punyaslok Purkayastha

Bao Vinh Nguyen

Gang Bao

Olivier Jean Benoit

Baaziz Achour

Rosario Cammarota

Raja Banerjea

Ashwini Raina

Srividhya Krishnamoorthy

Ramaswamy Venkateshwaran

Aram Perez

Eyal Hochdorf

Anthony James Cowan

Nitin Ravinder

Raamkumar Balamurthi

Xuetao Chen

Faith Ulupinar

Edward George Tiedemann

Bharat Bhushan Chakravarty

Jiwoong Lee

Ajay Kumar Vundyala

Qiang Fan

Venkata Savitri Pravallika Tallapragada

Varshini Rajesh

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

Aspects relate to changing at least one communication parameter. In some examples, the at least one communication parameter may include at least one of an association identifier (AID), a packet number (PN), a sequence number (SN), a traffic identifier (TID), a timing synchronization function (TSF) value, or a combination thereof. In some examples, a first apparatus provides an indication of a change associated with at least one of the AID, the PN, the SN, the TID, the TSF value, or a combination thereof to a second apparatus.

Communication security based on parameter change

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

This disclosure provides methods and devices for introducing a power save protocol (for example, a lower power mode) for a multi-link devices (MLDs). Some aspects more specifically relate to reducing power consumption in an access point (AP) MLD, and more particularly, to a power save protocol (or a lower power mode) for an AP MLD. In some aspects, an AP MLD may initiate a lower power mode to save power for as long as possible while still maintaining minimal receive (RX) and transmit (TX) functionality. When requested by an associated station (STA), the AP MLD may then transition from the lower power mode to a higher power mode with full RX and TX functionality with a minimal delay. The described techniques may also account for trade-offs and constraints which arise due to different use cases and scenarios as well as different device configurations.

Power save protocols for multi-link devices

An access point (AP) of an AP multi-link device (MLD) is associated with a first communication link, and one or more secondary APs of the AP MLD are associated with one or more respective secondary communication links of the AP MLD. The first AP of the AP MLD generates a frame including a first change sequence field, one or more secondary change sequence fields, and a critical update flag subfield. The first change sequence field carries a value of the most-recent critical update for the first AP. The one or more secondary change sequence fields carry values of the most-recent critical updates for the one or more respective secondary APs. The critical update flag subfield carries an indication of a change in value of at least one of the secondary change sequence fields. The first AP transmits the frame over the first communication link of the AP MLD.

Early critical update indications for multi-link devices

This disclosure provides methods, devices and systems for enhanced bandwidth negotiation. Some implementations more specifically relate to request-to-transmit (RTS) and clear-to-send (CTS) frame designs that support bandwidth negotiations over a range of bandwidths achievable in accordance with the IEEE 802.11be amendment, and future generations, of the IEEE 802.11 standard. In some implementations, a bandwidth negotiation frame (such as a CTS or RTS frame) may be configurable to support bandwidths greater than 160 MHz. In some aspects, the bandwidth negotiation frame may conform to a legacy control frame format. More specifically, one or more bits of a service field associated with the legacy control frame format may be repurposed to carry enhanced bandwidth information. In some aspects, a recipient of a bandwidth negotiation frame may interpret one or more bits of the service field to carry enhanced bandwidth information when the frame is transmitted by a non-legacy transmitting device.

Enhanced bandwidth negotiation

This disclosure provides systems, methods, and apparatuses for wireless communication. An example wireless communication device broadcasts a first beacon frame over a first communication link of an access point (AP) multi-link device (MLD) (AP MLD), and broadcasts a second beacon frame over a second communication link of the AP MLD. The first beacon frame indicates transmission of group data over the first communication link, and the second beacon frame indicates transmission of the group data over the second communication link. The wireless communication device transmits the group data, concurrently over the first and second communication links, to one or more wireless stations (STAs). Another example wireless communication device obtains one or more beacon frames indicating buffered group data in an AP MLD for at least the wireless communication device, selects one or more group communication links, and obtains the group data over the one or more selected group communication links.

Group data transmissions for multi-link wireless communication devices

Growing community of inventors

San Diego, CA, United States of America

Sai Yiu Duncan Ho