公开(公告)号：US10959153B2

公开(公告)日：2021-03-23

申请号：US16111960

申请日：2018-08-24

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod Patil ,  George Cherian ,  Alfred Asterjadhi ,  Yan Zhou ,  Venkata Ramanan Venkatachalam Jayaraman

IPC: H04W40/04 ,  H04L1/16 ,  H04W76/15 ,  H04W40/24

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may identify a multi-link aggregation capability (e.g., a capability to transmit in parallel over multiple wireless links), and may transmit an indication of such capability to another wireless device. The indication may be included in an information element (e.g., a multi-band element) of a transmission frame. For example, the indication may be included in a multi-band element of a beacon, of association signaling, of probe signaling, of an add block acknowledgement (ADDBA) request, etc. The indication sent over one of the wireless links may include information for some or all the multiple links supported for multi-link aggregation. This information may include media access control (MAC) address, channel information, operating class, security information, etc. for each link. Such multi-link aggregation information may be used, for example, for establishment of improved block acknowledgment (BA) sessions between wireless devices.

公开(公告)号：US20210058981A1

公开(公告)日：2021-02-25

申请号：US16991943

申请日：2020-08-12

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  Lochan Verma ,  George Cherian ,  Abhishek Pramod Patil ,  Sai Yiu Duncan Ho

IPC: H04W74/08 ,  H04W74/00 ,  H04W52/02

Abstract: This disclosure provides methods, devices and systems for synchronized channel access. Some implementations more specifically relate to facilitating coexistence among wireless communication devices that support synchronized channel access and those that do not. A group of access points may schedule periodically recurring, synchronized channel access periods by periodically transmitting quiet elements. The quiet elements establish recurring quiet periods during which legacy devices are not permitted to transmit. In some implementations, an access point may transmit one or more quiet override elements each associated with a respective quiet element and indicating to other access points supporting synchronized channel access that they are permitted to contend for access during the respective quiet period. In some other implementations of synchronized channel access, an access point supporting synchronized channel access that wins contention after one or more consecutive synchronized channel access periods during which no other synchronized access points won contention, may be entitled to an extended TXOP.

公开(公告)号：US20210045134A1

公开(公告)日：2021-02-11

申请号：US17077830

申请日：2020-10-22

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Abhishek Pramod Patil ,  George Cherian ,  Venkata Ramanan Venkatachalam Jayaraman ,  Alfred Asterjadhi

IPC: H04W72/12 ,  H04B7/06 ,  H04B7/0413 ,  H04L5/00 ,  H04B7/024

Abstract: Various aspects of the disclosure relate to distributed multiple-input multiple-output (MIMO) communication such as coordinated beamforming or Joint MIMO. In some aspects, distributed MIMO is used to support communication in a cluster of wireless nodes (e.g., access points). A distributed MIMO scheduling scheme as taught herein is used to schedule the wireless nodes (e.g., access points and/or stations) operating within the cluster. For example, stations may be scheduled across basis services sets of the access points for a downlink transmission and/or an uplink transmission.

公开(公告)号：US20210007168A1

公开(公告)日：2021-01-07

申请号：US16915983

申请日：2020-06-29

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  Abhishek Pramod Patil ,  George Cherian ,  Sai Yiu Duncan Ho ,  Lochan Verma

IPC: H04W76/20 ,  H04W76/15 ,  H04B7/0413 ,  H04W52/02

Abstract: 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.

公开(公告)号：US10827425B2

公开(公告)日：2020-11-03

申请号：US15008404

申请日：2016-01-27

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  Simone Merlin ,  Bin Tian ,  George Cherian ,  Gwendolyn Denise Barriac

IPC: H04W52/02 ,  H04L5/00 ,  H04W28/02 ,  H04W72/00

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, an apparatus may be configured to determining a TWT schedule. The apparatus may be configured to broadcast a message that includes the TWT schedule to a number of wireless devices. The message may include a broadcast indicator that indicates the TWT schedule is a broadcast TWT schedule. In another aspect, an apparatus may be configured to receive from a second wireless device a message that includes a TWT schedule. The message may include a broadcast indicator that indicates the TWT schedule is a broadcast TWT schedule. The apparatus may be configured to determine one or more TWTs for the apparatus based on the TWT schedule.

公开(公告)号：US10820333B2

公开(公告)日：2020-10-27

申请号：US15916181

申请日：2018-03-08

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Abhishek Pramod ,  George Cherian ,  Venkata Ramanan Venkatachalam Jayaraman ,  Alfred Asterjadhi

IPC: H04W56/00 ,  H04W72/12 ,  H04B7/06 ,  H04B7/0413 ,  H04L5/00 ,  H04B7/024 ,  H04W72/04

Abstract: Various aspects of the disclosure relate to distributed multiple-input multiple-output (MIMO) communication such as coordinated beamforming or Joint MIMO. In some aspects, distributed MIMO is used to support communication in a cluster of wireless nodes (e.g., access points). A distributed MIMO scheduling scheme as taught herein is used to schedule the wireless nodes (e.g., access points and/or stations) operating within the cluster. For example, stations may be scheduled across basis services sets of the access points for a downlink transmission and/or an uplink transmission.

公开(公告)号：US10805940B2

公开(公告)日：2020-10-13

申请号：US15916195

申请日：2018-03-08

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  George Cherian ,  Abhishek Pramod Patil ,  Alfred Asterjadhi ,  Venkata Ramanan Venkatachalam Jayaraman

IPC: H04W28/04 ,  H04W72/12 ,  H04B7/0413 ,  H04B7/026 ,  H04B7/06 ,  H04W72/04

Abstract: Various aspects of the disclosure relate to distributed multiple-input multiple-output (MIMO) communication such as coordinated beamforming or Joint MIMO. In some aspects, distributed MIMO is used to support communication in a cluster of wireless nodes (e.g., access points). A distributed MIMO scheduling scheme as taught herein is used to schedule the wireless nodes (e.g., access points and/or stations) operating within the cluster. For example, selected stations may be triggered to communicate with respective access points.

公开(公告)号：US20200288523A1

公开(公告)日：2020-09-10

申请号：US16809456

申请日：2020-03-04

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod Patil ,  George Cherian ,  Alfred Asterjadhi ,  Lochan Verma

IPC: H04W76/15 ,  H04L1/16 ,  H04L5/00 ,  H04W74/08 ,  H04W80/02

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for improved handling of adjacent channel interference in multi-link aggregation scenarios. In accordance with the described techniques, a device may establish a set of wireless links for communication with a second device, the set of wireless links supporting parallel transmission during at least a first duration of a multi-link session, the set of wireless links including at least a first wireless link and a second wireless link. The device may modify a transmission parameter for the first wireless link or a clear channel assessment (CCA) parameter for the second wireless link, or a combination thereof. The device may then perform the CCA procedure on the second wireless link and transmit at least a first portion of the message on the first wireless link based on the modified transmission parameter or modified CCA parameter.

公开(公告)号：US20200213933A1

公开(公告)日：2020-07-02

申请号：US16707825

申请日：2019-12-09

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod Patil ,  George Cherian ,  Alfred Asterjadhi ,  Sandip Hom Chaudhuri ,  Maarten Menzo Wentink ,  Alireza Raissinia ,  Lochan Verma ,  Padmanabhan Venkataraman Karthic

IPC: H04W40/24 ,  H04W8/00 ,  H04W8/24 ,  H04W80/08 ,  H04W28/02 ,  H04W80/02

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for high efficiency (HE) beacons. HE supported access points (APs) and stations (STAs) may operate on resource deployments used for Wi-Fi technology and without support for legacy devices, also referred to as a greenfield deployment. An AP may identify updated capability information and transmit a HE physical layer convergence protocol (PLCP) protocol data unit (PPDU) including a beacon frame. A STA may receive, from the AP, the HE or EHT PPDU and identify an indication of change to a content or format of the beacon frame relative to a reference beacon frame. Based on the identified indication, the STA may then determine an updated content or format for the beacon frame and process the beacon frame or skip processing for one or more portions of the beacon frame.

公开(公告)号：US10666368B2

公开(公告)日：2020-05-26

申请号：US16516495

申请日：2019-07-19

Applicant: QUALCOMM Incorporated

Inventor： Gwendolyn Denise Barriac ,  George Cherian ,  Simone Merlin ,  Alfred Asterjadhi ,  Yan Zhou ,  Gang Ding ,  Qingjiang Tian

IPC: H04B17/318 ,  H04W72/08 ,  H04W16/10 ,  H04W72/04 ,  H04W16/14 ,  H04W84/12 ,  H04W74/00 ,  H04W88/08

Abstract: Methods and apparatus for managing reuse of a wireless medium are provided. One method of managing reuse of a wireless medium includes determining, at an access point, whether to allow reuse of the wireless medium by one or more stations in a basic service set (BSS). The method further includes transmitting, upon determining to allow reuse, an indication that reuse of the wireless medium can be permitted for stations meeting a criteria. The method further includes determining one or more reuse parameters. The method further includes transmitting the one or more reuse parameters.