公开(公告)号：US20230361822A1

公开(公告)日：2023-11-09

申请号：US17738892

申请日：2022-05-06

Applicant: QUALCOMM Incorporated

Inventor： Lin YANG ,  Bin Tian ,  Alfred Asterjadhi ,  Youhan Kim

IPC: H04B7/06

CPC classification number: H04B7/0617 ,  H04B7/0619 ,  H04W84/12

Abstract: This disclosure provides methods, devices and systems for increasing carrier frequencies for wireless communications in wireless local area networks (WLANs). Some implementations more specifically relate to BSS discovery and association techniques that support wireless communications on carrier frequencies above 7 GHz. In some aspects, an access point (AP) may communicate using beamforming on a wireless communication link operating at a carrier frequency above 7 GHz (the “directional link”) while offloading the BSS discovery and association procedures needed to support such communications onto a wireless communication link operating at a carrier frequency below 7 GHz (the “anchor link”). In some implementations, the AP may perform a beamforming training operation with a STA over the directional link upon associating with the STA over the anchor link. In such implementations, the AP may communicate with the STA over the directional link using a beam derived from the beamforming training operation.

公开(公告)号：US11812472B2

公开(公告)日：2023-11-07

申请号：US17061120

申请日：2020-10-01

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod Patil ,  Alfred Asterjadhi ,  George Cherian ,  Guido Robert Frederiks

IPC: H04W4/00 ,  H04W74/08 ,  H04W74/00 ,  H04W84/12 ,  H04B17/318 ,  H04W74/02 ,  H04W48/12

CPC classification number: H04W74/0833 ,  H04W74/006 ,  H04W74/0825 ,  H04B17/318 ,  H04W48/12 ,  H04W74/02 ,  H04W84/12

Abstract: Disclosed are methods and systems for wireless communication. In one aspect, a method includes generating, by an access point, a frame, the frame assigning first resource units to first devices participating in a multi-user transmission with the access point during a transmission opportunity, and further indicating second resource units available during the transmission opportunity for transmissions to other devices, transmitting the frame; and receiving the multi-user transmission from the first devices according to the resource unit assignments.

公开(公告)号：US20230269805A1

公开(公告)日：2023-08-24

申请号：US18145777

申请日：2022-12-22

Applicant: QUALCOMM Incorporated

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

IPC: H04W76/15 ,  H04L1/1607 ,  H04W80/02 ,  H04W74/08 ,  H04L5/00

CPC classification number: H04W76/15 ,  H04L1/1621 ,  H04W80/02 ,  H04W74/0808 ,  H04L5/0055

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：US20230140312A1

公开(公告)日：2023-05-04

申请号：US17516375

申请日：2021-11-01

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/04 ,  H04W74/08 ,  H04W72/04

Abstract: This disclosure provides methods, devices and systems for protecting latency-sensitive communications during restricted target wake time (r-TWT) service periods (SPs). Some implementations more specifically relate to coordinated scheduling of r-TWT SPs between OBSSs. In some aspects, a first AP may coordinate with a second AP in scheduling r-TWT SPs so that latency-sensitive traffic in a first BSS does not interfere or collide with latency-sensitive traffic in a second BSS overlapping the first BSS. In some implementations, the first and second APs may schedule their respective r-TWT SPs to be orthogonal in time. In some other implementations, the first and second APs may schedule their r-TWT SPs to overlap in time, while allocating coordinated resources to concurrent or overlapping latency-sensitive traffic in the first and second BSSs (such as in accordance with one or more multi-AP coordination techniques).

公开(公告)号：US11638280B2

公开(公告)日：2023-04-25

申请号：US16514878

申请日：2019-07-17

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04W72/1268 ,  H04W28/02 ,  H04W72/0446 ,  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：US20230079928A1

公开(公告)日：2023-03-16

申请号：US18049587

申请日：2022-10-25

Applicant: QUALCOMM Incorporated

Inventor： Bin Tian ,  Stephen Jay Shellhammer ,  Yanjun Sun ,  Alfred Asterjadhi

IPC: H04L5/00 ,  H04W72/04 ,  H04W28/06

Abstract: This disclosure provides methods, devices and systems for soliciting trigger-based (TB) physical layer protocol convergence protocol (PLCP) protocol data units (PPDUs). Some implementations more specifically relate to trigger frame designs that support non-legacy TB PPDU formats. In some aspects, a trigger frame may carry information to be included in a physical layer (PHY) preamble of a TB PPDU solicited by the trigger frame. For example, the information may indicate values of one or more subfields of a universal signal field (U-SIG) associated with the non-legacy TB PPDU format. In some aspects, the information may be carried in a special user information field of the trigger frame. For example, the special user information field may be identified by a special association identifier (AID) value. The special AID value may be different than any AID values assigned to wireless communication devices in a basic service set (BSS) associated with the TB PPDU.

公开(公告)号：US20230020559A1

公开(公告)日：2023-01-19

申请号：US17946666

申请日：2022-09-16

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 ,  H04W74/08 ,  H04L1/16 ,  H04L5/00 ,  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：US11553405B2

公开(公告)日：2023-01-10

申请号：US16995583

申请日：2020-08-17

Applicant: QUALCOMM Incorporated

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

IPC: H04W48/08 ,  H04W48/16 ,  H04W16/14 ,  H04W48/10 ,  H04W8/00 ,  H04W48/12 ,  H04W48/20

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for advertising operating channels that are being operated in an unlicensed frequency band. One or more access points (APs) may transmit discovery information on a dedicated discovery channel for the unlicensed frequency band. The discovery information may indicate at least one operating channel that is being used by an AP for providing wireless access. The discovery information also may include other information useful for a station (STA) to discover APs, operating channels, and operating parameters. The STA may monitor the dedicated discovery channel to obtain the discovery information without conducting an active scanning or passive scanning procedure.

公开(公告)号：US11528093B1

公开(公告)日：2022-12-13

申请号：US17328464

申请日：2021-05-24

Applicant: QUALCOMM Incorporated

Inventor： Yanjun Sun ,  Bin Tian ,  Alfred Asterjadhi ,  George Cherian ,  Youhan Kim

IPC: H04L1/00 ,  H04L1/16 ,  H04W76/30

Abstract: This disclosure provides systems, methods, and apparatuses for wireless communication that can be used for channel puncturing. A wireless station (STA) may receive an indication of a first puncturing pattern to be used for transmitting or receiving data over a wireless channel, where the first puncturing pattern is defined by a first wireless communication protocol release and the STA is configured to operate according to a second wireless communication protocol release. The STA may select, from a set of puncturing patterns defined by the second wireless communication protocol release, a second puncturing pattern that includes one or more non-punctured subchannels that are subsets of one or more corresponding non-punctured subchannels of the first puncturing pattern. The STA may use the second puncturing pattern to transmit or receive one or more packets over the wireless channel.

公开(公告)号：US11510269B2

公开(公告)日：2022-11-22

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 ,  H04W52/02 ,  H04B7/0413 ,  H04W76/15

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.