公开(公告)号：US12219464B2

公开(公告)日：2025-02-04

申请号：US17942988

申请日：2022-09-12

Applicant: QUALCOMM Incorporated

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

IPC: H04W48/08 ,  H04L1/1607 ,  H04W4/23 ,  H04W8/24 ,  H04W12/73 ,  H04W48/16 ,  H04W72/0446 ,  H04W74/0808 ,  H04W76/11 ,  H04W76/15 ,  H04W80/02 ,  H04W84/12 ,  H04W88/02 ,  H04W88/10 ,  H04W92/02 ,  H04W92/10

Abstract: This disclosure provides systems, methods, and apparatuses for associating a wireless communication device such as a wireless station (STA) of a STA multi-link device (MLD) with an access point (AP) MLD that includes a first AP associated with a first communication link of the AP MLD and includes one or more secondary APs associated with one or more respective secondary communication links of the first AP MLD. The first AP includes one or more virtual APs, and the first AP and the one or more virtual APs of the first AP belong to a first multiple basic service set identifier (BSSID) set associated with the first communication link. The AP MLD transmits a frame including a first element carrying discovery information for the first AP and the one or more virtual APs belonging to the first multiple BSSID set, and including a second element carrying discovery information for the one or more secondary APs of the first AP MLD associated with the one or more respective secondary communication links of the first AP MLD.

公开(公告)号：US12156200B2

公开(公告)日：2024-11-26

申请号：US18183787

申请日：2023-03-14

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/1268 ,  H04W28/02 ,  H04W72/0446 ,  H04W72/52 ,  H04W72/543 ,  H04W84/12

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for managing uplink access in a wireless local area network. A station (STA) may inform an access point (AP) of uplink quality of service (QoS) parameters for a traffic flow from the STA. The AP may control uplink resources to satisfy the QoS parameters. For example, the AP may select from among different access modes (including a single user (SU) access mode, an uplink multi-user (UL-MU) scheduled access mode, a multi-user enhanced distributed controlled access (MU EDCA) access mode, or a low latency (LL) access mode). The AP may cause the STA to use a SU access mode or the LL access mode if the UL-MU scheduled access mode and the MU EDCA access mode are not sufficient to satisfy the uplink QoS parameters for the traffic flow.

公开(公告)号：US12082251B2

公开(公告)日：2024-09-03

申请号：US17181987

申请日：2021-02-22

Applicant: QUALCOMM Incorporated

Inventor： Sai Yiu Duncan Ho ,  George Cherian ,  Abhishek Pramod Patil ,  Alfred Asterjadhi ,  Raja Banerjea ,  Bin Tian ,  Yanjun Sun

IPC: H04W74/08 ,  H04L1/1607 ,  H04W56/00 ,  H04W72/541 ,  H04W74/0816

CPC classification number: H04W74/0816 ,  H04L1/1621 ,  H04W56/0045 ,  H04W72/541 ,  H04W74/0891

Abstract: This disclosure provides methods, devices and systems for non-simultaneous transmit and receive (STR) station (STA) transmissions using multiple links. In one aspect, a medium synchronization delay timer associated with a second link of the non-STR STA can be initiated in response to completing transmission of the data on the first link to delay triggering of a clear channel assessment (CCA) associated with the second link. Data can be transmitted on the second link in response to expiration of the medium synchronization delay timer. In another aspect, an energy detect (ED) threshold level on a second link may be decreased from a first ED threshold level to a second ED threshold level after transmitting the data on the first link. In a further aspect, a block acknowledgment (BA) frame including a network allocation vector (NAV) synchronization of a second access point may be transmitted to the first link of the station.

公开(公告)号：US12082020B2

公开(公告)日：2024-09-03

申请号：US16926479

申请日：2020-07-10

Applicant: QUALCOMM Incorporated

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

IPC: H04W24/10 ,  H04B7/024 ,  H04B7/0413 ,  H04B7/06 ,  H04B17/318 ,  H04B17/336 ,  H04B17/373 ,  H04J11/00 ,  H04B17/21

CPC classification number: H04W24/10 ,  H04B7/024 ,  H04B7/0413 ,  H04B7/0632 ,  H04B17/318 ,  H04B17/336 ,  H04B17/373 ,  H04J11/0053 ,  H04B7/0617 ,  H04B17/21

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 determine each wireless node (e.g., station) in the cluster that needs to be nulled by another wireless node (e.g., an access point). For example, one of the wireless nodes may obtain signal measurement information from the other wireless nodes and thereby generate a list of wireless nodes (e.g., access points) that need to null one or more wireless nodes (e.g., stations).

公开(公告)号：US12069723B2

公开(公告)日：2024-08-20

申请号：US17461670

申请日：2021-08-30

Applicant: QUALCOMM Incorporated

Inventor： George Cherian ,  Alfred Asterjadhi ,  Yanjun Sun ,  Sai Yiu Duncan Ho ,  Abhishek Pramod Patil

IPC: H04W74/0808

CPC classification number: H04W74/0808

Abstract: In some implementations, an access point (AP) establishes a restricted target wake time (TWT) session including at least one restricted TWT service period (SP) for peer-to-peer (P2P) communications. The AP admits a group of wireless stations (STAs) associated with P2P communications as members of the restricted TWT session, obtains a transmission opportunity (TXOP) on the wireless channel during the at least one restricted TWT SP, and transmits, on the wireless channel, a protection frame identifying one or more STAs of the group of STAs belonging to the restricted TWT session that are permitted to transmit or receive P2P communications on the wireless channel during the TXOP. The protection frame may also indicate to receiving devices other than the one or more identified STAs that the wireless channel is unavailable for at least a portion of the TXOP.

公开(公告)号：US12047873B2

公开(公告)日：2024-07-23

申请号：US17560203

申请日：2021-12-22

Applicant: QUALCOMM Incorporated

Inventor： Gaurang Naik ,  Abdel Karim Ajami ,  Alfred Asterjadhi ,  George Cherian ,  Abhishek Pramod Patil ,  Sai Yiu Duncan Ho ,  Yanjun Sun

IPC: H04W52/02 ,  H04W76/15 ,  H04W92/20

CPC classification number: H04W52/0206 ,  H04W76/15 ,  H04W92/20

Abstract: 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.

公开(公告)号：US20240236880A1

公开(公告)日：2024-07-11

申请号：US18388928

申请日：2023-11-13

Applicant: Qualcomm Incorporated

Inventor： Abhishek Pramod Patil ,  Yongchun Xiao ,  Ravi Gidvani ,  Sandip HomChaudhuri ,  Pradeep Kumar Yenganti ,  Arul Davidson Emmanuel ,  James Simon Cho ,  Padmanabhan Venkataraman Karthic ,  George Cherian ,  Alfred Asterjadhi ,  Jouni Kalevi Malinen

IPC: H04W56/00 ,  H04L5/00 ,  H04W84/12

CPC classification number: H04W56/0005 ,  H04L5/0096 ,  H04W56/0015 ,  H04W84/12

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for analyzing management frames for multiple basic service sets (BSSs). In one aspect, a wireless node may obtain a first management frame from a wireless local area network (WLAN) apparatus, the WLAN apparatus operating multiple virtual access points (VAPs) respectively corresponding to multiple BSSs. The wireless node may determine whether the first management frame includes a BSS profile of a BSS associated with the wireless node based, at least in part, on an arrangement of a plurality of BSS profiles within one or more management frames. The wireless node may determine to further process the first management frame based, at least in part, on a determination that the first management frame includes the BSS profile of the BSS associated with the wireless node.

公开(公告)号：US20240236844A9

公开(公告)日：2024-07-11

申请号：US18047956

申请日：2022-10-19

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  George Cherian ,  Abhishek Pramod Patil ,  Abdel Karim Ajami ,  Gaurang Naik ,  Yanjun Sun ,  Sai Yiu Duncan Ho

IPC: H04W52/02

CPC classification number: H04W52/0206 ,  H04W88/08

Abstract: 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.

公开(公告)号：US20240214906A1

公开(公告)日：2024-06-27

申请号：US18392216

申请日：2023-12-21

Applicant: Qualcomm Incorporated

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

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

CPC classification number: H04W40/244 ,  H04W8/005 ,  H04W8/245 ,  H04W28/0263 ,  H04W80/02 ,  H04W80/08

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：US11996920B2

公开(公告)日：2024-05-28

申请号：US17942006

申请日：2022-09-09

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod Patil ,  George Cherian ,  Yanjun Sun ,  Lin Yang ,  Gaurang Naik ,  Abdel Karim Ajami ,  Alfred Asterjadhi ,  Sai Yiu Duncan Ho

IPC: H04B7/06 ,  H04W24/02 ,  H04W28/02

CPC classification number: H04B7/0617 ,  H04B7/0695 ,  H04W24/02 ,  H04W28/0278

Abstract: 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.