公开(公告)号：US11343853B2

公开(公告)日：2022-05-24

申请号：US16790624

申请日：2020-02-13

Applicant: QUALCOMM Incorporated

Inventor： George Cherian ,  Maarten Menzo Wentink ,  Abhishek Pramod Patil ,  Alfred Asterjadhi

IPC: H04W74/08 ,  H04W56/00 ,  H04W84/12

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for sharing a transmission opportunity (TXOP) of a wireless channel. A first wireless local area network (WLAN) device can win a contention-based procedure to become an owner of the TXOP and determine to use the TXOP as a multi-device transmission opportunity (mTXOP). Although the first WLAN device is the owner of the mTXOP, the first WLAN device may allocate resources from the mTXOP to share with other WLAN devices. During a first portion of the mTXOP, the first WLAN device allocate subordinate transmission opportunities (sub-TXOPs) for use by other WLAN devices during a second portion of the mTXOP. The allocation of sub-TXOPs may be prepared based on fairness considerations, latency considerations, or both. In some implementations, a sub-TXOP may be allocated for a non-WLAN device, such as a wireless wide area network (WWAN) apparatus.

公开(公告)号：US11329871B2

公开(公告)日：2022-05-10

申请号：US16288037

申请日：2019-02-27

Applicant: QUALCOMM Incorporated

Inventor： Yongchun Xiao ,  Abhishek Pramod Patil ,  Sandip HomChaudhuri ,  Ravi Gidvani ,  Alfred Asterjadhi ,  George Cherian

IPC: H04L12/24 ,  H04L41/0806 ,  H04W40/24 ,  H04L12/28 ,  H04W76/15 ,  H04L45/24 ,  H04W24/02 ,  H04W48/16 ,  H04W72/04 ,  H04W88/08 ,  H04W74/00 ,  H04W48/12 ,  H04W88/16 ,  H04W84/12 ,  H04W28/06

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for implementing multi-link aggregation and conditional inheritance in a first basic service set (BSS). In one aspect, an apparatus may establish a first communication link with a first station (STA) of the first BSS using a first frequency band. The apparatus may determine a first link profile for a second communication link by customizing one or more management elements of management information associated with the first communication link. The apparatus may configure a first non-inheritance element of the first link profile associated with the second communication link to indicate usage of at least one management element of the management information by the second communication link is disabled. The apparatus may generate a management frame that comprises at least the first link profile, and may output the management frame for transmission.

公开(公告)号：US20220039086A1

公开(公告)日：2022-02-03

申请号：US17503677

申请日：2021-10-18

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  George Cherian ,  Abhishek Pramod Patil ,  Bin Tian

IPC: H04W72/04

Abstract: This disclosure provides methods, devices, and techniques to indicate operations by extremely high throughput (EHT) devices on an operating bandwidth, including devices in a basic service set (BSS) supporting the use of a 320 MHz channel. In some aspects, the supported functionality may include extensions to flexibility and support rules, structures, and signaling using legacy fields, frames, and features. In addition, the supported functionality may include channel sensing and reporting, such as per-channel network allocation vectors (NAVs) for the sub-channels of the operating bandwidth. A device may identify an operating mode for an operating bandwidth and determine a value for a bandwidth query report (BQR) or a target wake time (TWT) element. The device may check multiple NAVs for sub-channels of the operating bandwidth. The operating bandwidth may span concurrent operations on traditional Wi-Fi frequency bands including the 2.4 and 5 GHz bands as well as the 6 GHz band.

公开(公告)号：US11166244B2

公开(公告)日：2021-11-02

申请号：US16775125

申请日：2020-01-28

Applicant: QUALCOMM Incorporated

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

IPC: H04W52/34 ,  H04W52/26 ,  H04W52/36 ,  H04W60/00 ,  H04W52/20 ,  H04W52/22 ,  H04W52/24 ,  H04W52/54

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, the example method may include generating a data frame including a Medium Access Control (MAC) header or a physical layer (PHY) header. The MAC header or the PHY header of the data frame may include transmit power related information. The transmit power related information may include at least one of: a maximum transmit power, power backoff per modulation and coding scheme information, or an actual transmit power. The method may include transmitting the data frame to a second device.

公开(公告)号：US20210297865A1

公开(公告)日：2021-09-23

申请号：US17232599

申请日：2021-04-16

Applicant: QUALCOMM Incorporated

Inventor： George Cherian ,  Alfred Asterjadhi ,  Abhishek Pramod Patil

IPC: H04W16/02 ,  H04W24/10 ,  H04W74/06

Abstract: 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.

公开(公告)号：US20210203531A1

公开(公告)日：2021-07-01

申请号：US17200625

申请日：2021-03-12

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Bin Tian ,  Alfred Asterjadhi ,  George Cherian

IPC: H04L27/26 ,  H04L5/00 ,  H04L1/00

Abstract: Techniques are described herein that illustrate a feedback system to configure various format parameters of physical layer convergence procedure protocol data units (PPDUs) transmitted across a communication link. A receiving device may determine a Doppler shift or a delay spread of a signal received from a transmitting device. The receiving device may determine one or more format parameters for a future PPDU based on the Doppler shift or the delay spread. The receiving device may transmit an indication that includes the format parameters for the future PPDU to the transmitting device. The transmitting device may modify one or more format parameters of a PPDU based on the information in the indication. In some cases, the receiving device may indicate characteristics of mid-ambles, a type of PPDU, a guard interval, high efficiency long training field size for a future PPDU.

公开(公告)号：US11026172B2

公开(公告)日：2021-06-01

申请号：US16239479

申请日：2019-01-03

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  George Cherian ,  Bin Tian ,  Stephen Jay Shellhammer

IPC: H04W56/00 ,  H04W52/02 ,  H04W72/04 ,  H04L29/06 ,  H04W84/12 ,  H04L1/00

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for establishing communications with one or more devices. In one aspect, a first device generates a wake-up radio (WUR) frame, the WUR frame including a media access control (MAC) header and a frame check sequence (FCS) having a cyclic redundancy check (CRC) or a message integrity check (MIC). The first device may determine the FCS based, at least in part, on the MAC header and basic service set identifier (BSSID) information associated with the first device. The first device may output the WUR frame for transmission to one or more devices. A second device may receive the WUR frame from the first device and determine whether the WUR frame is directed to the second device based, at least in part, on comparing the FCS of the WUR frame with a calculated FCS.

公开(公告)号：US20210007113A1

公开(公告)日：2021-01-07

申请号：US17030242

申请日：2020-09-23

Applicant: QUALCOMM Incorporated

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

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

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：US20210006361A1

公开(公告)日：2021-01-07

申请号：US16917605

申请日：2020-06-30

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  George Cherian ,  Abhishek Pramod Patil ,  Lochan Verma ,  Jialing Li Chen ,  Stephen Jay Shellhammer ,  Dung Ngoc Doan ,  Bin Tian

IPC: H04L1/18 ,  H04L5/00 ,  H04L1/16 ,  H04W80/02

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for implementing a hybrid automatic repeat request (HARQ) protocol in a wireless local area network (WLAN). In some aspects, a first WLAN device may transmit a first HARQ frame to a second WLAN device. The first WLAN device may determine whether a first feedback message received from the second WLAN device includes HARQ acknowledgement information or non-HARQ acknowledgment information. The first feedback message may be a HARQ Block Acknowledgement (H-BA) message having a multi-station Block ACK (M-BA) frame format that includes HARQ acknowledgment information. The first WLAN device may transmit a second HARQ frame to the second WLAN device in response to determining the first feedback message includes the HARQ acknowledgment information. The first WLAN device may transmit a non-HARQ frame in response to determining the first feedback message includes non-HARQ acknowledgement information.

公开(公告)号：US10863431B2

公开(公告)日：2020-12-08

申请号：US14931752

申请日：2015-11-03

Applicant: QUALCOMM Incorporated

Inventor： Santosh Paul Abraham ,  Alireza Raissinia ,  George Cherian ,  Abhishek Pramod Patil

IPC: H04W52/02 ,  H04W56/00 ,  H04W72/04 ,  H04W48/12 ,  H04W84/12

Abstract: Methods, devices, and computer program products for synchronization of wireless devices in a peer-to-peer network are described herein. In one aspect, a method of wireless communication apparatus is provided. The method includes receiving, at an apparatus, at least one of: an offset parameter indicating an offset, with respect to a default time period, during which the apparatus should be in an active mode for transmitting and/or receiving data, and an interval parameter indicating a multiple of time periods, wherein the apparatus should be in the active mode for transmitting and/or receiving data during each time period. The method further includes determining at least one wakeup time period to be in the active mode based on the offset parameter or the interval parameter. The method further includes transmitting and/or receiving data during the at least one wakeup time period.