公开(公告)号：US12170971B2

公开(公告)日：2024-12-17

申请号：US17533092

申请日：2021-11-22

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for coordinated scheduling of service periods (SPs). In some aspects, an access point (AP) may receive timing information indicating an SP associated with an overlapping basic service set (OBSS) and may transmit, to its associated STAs, coordinated timing information indicating the timing of the SP in relation to its timing synchronization function (TSF) timer. In some aspects, the AP may adjust the timing information to account for an offset between its TSF timer and a TSF timer associated with the OBSS. In some other aspects, the AP may synchronize its TSF timer with the TSF timer associated with the OBSS. The AP may further communicate with the STAs based on the coordinated timing information. For example, the AP may schedule communications with the STAs to be orthogonal to communications in the OBSS during the SP.

公开(公告)号：US12058750B2

公开(公告)日：2024-08-06

申请号：US17197747

申请日：2021-03-10

Applicant: QUALCOMM Incorporated

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

IPC: H04W76/15 ,  H04W74/0808

CPC classification number: H04W76/15 ,  H04W74/0808

Abstract: Aspects of the present disclosure generally relate to wireless communications and, more particularly, to techniques for managing multi-link communications. Some aspects of the present disclosure provide techniques for configuring data unit and control response transmissions on multiple links. The data unit and control responses may be configured such that a control response transmission does not overlap with a data unit reception at a station that is without simultaneous transmission and reception capability.

公开(公告)号：US20240163792A1

公开(公告)日：2024-05-16

申请号：US18504979

申请日：2023-11-08

Applicant: Qualcomm Incorporated

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

IPC: H04W52/02

CPC classification number: H04W52/0216

Abstract: This disclosure provides methods, components, devices and systems for extending target wake time (TWT) frame functionality. Some aspects more specifically relate to accommodating TWT wake intervals that do not satisfy threshold TWT wake intervals. In some examples, a first wireless communication device configures at least one of: one or more subfields of a field or one or more fields of an element that include TWT information in a TWT frame, where the subfield(s) or field(s) indicate a presence or absence of at least one optional field in the TWT frame, or an optional element in the TWT frame. The device then transmits the TWT frame to a second wireless communication device. After the second device receives this TWT frame, this device executes one or more operations associated with a TWT schedule or service period based at least in part on the configured subfield(s) or field(s) or the configured optional element.

公开(公告)号：US20240163059A1

公开(公告)日：2024-05-16

申请号：US18054531

申请日：2022-11-10

Applicant: QUALCOMM Incorporated

Inventor： Stephen Jay Shellhammer ,  Bin Tian ,  Alireza Raissinia ,  Yanjun Sun

IPC: H04L5/00 ,  H03M13/00 ,  H04L69/22

CPC classification number: H04L5/0053 ,  H03M13/6312 ,  H04L5/0064 ,  H04L69/22

Abstract: This disclosure provides methods, components, devices and systems for ranging measurement procedures between two wireless devices that communicate in wide bandwidth networks. Some aspects more specifically relate to null data packet (NDP) transmissions via a 320 megahertz (MHz) bandwidth. In some examples, a first wireless device and a second wireless device may participate in a ranging measurement procedure and may exchange one or more NDPs to facilitate distance measurements and one or both of the first wireless device and the second wireless device may indicate that an associated protocol data unit (PDU) is a 320 MHz ranging NDP (e.g., an NDP of a ranging variant associated with a bandwidth of 320 MHz) via one or more bits of the preamble of the PDU. The one or more bits may be included in a universal signal (U-SIG) field of the preamble of the PDU.

公开(公告)号：US11963155B2

公开(公告)日：2024-04-16

申请号：US17249070

申请日：2021-02-18

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04W72/20 ,  H04W88/08

CPC classification number: H04W72/12 ,  H04W72/20 ,  H04W88/08

Abstract: This disclosure provides methods, devices and systems for sharing resources of a wireless medium. Particular implementations relate more specifically to coordinated AP (CAP) time-division-multiple-access (TDMA) and orthogonal-frequency-division-multiple access (OFDMA) techniques for sharing the time or frequency resources of a transmission opportunity (TXOP). According to such techniques, an AP that wins contention and gains access to the wireless medium for the duration of a TXOP may share its time or frequency resources with other selected APs. To share its resources, the winning AP may partition the TXOP into multiple time or frequency segments each including respective time or frequency resources representing a portion of the TXOP, and allocate each of the time or frequency segments to itself or to one of the selected APs.

公开(公告)号：US20240007154A1

公开(公告)日：2024-01-04

申请号：US17855427

申请日：2022-06-30

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04B7/08

CPC classification number: H04B7/0617 ,  H04B7/0695 ,  H04B7/088

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may communicate signaling with a second wireless device based on establishing a radio frequency link, the signaling indicating the first wireless device and the second wireless device are to skip performance of a beam training procedure, or indicating a selection between a first beam training procedure associated with the radio frequency link and a second beam training procedure associated with the radio frequency link. The first wireless device may then communicate one or more messages with the second wireless device via the radio frequency link using a beam, where the beam is based on whether the signaling indicates the first wireless device and the second wireless device are to skip performance of the beam training procedure, or indicates the selection between the first beam training procedure and the second beam training procedure.

公开(公告)号：US11805438B2

公开(公告)日：2023-10-31

申请号：US17746695

申请日：2022-05-17

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Yanjun Sun ,  Hemanth Sampath ,  Bibhu Mohanty ,  Brian Michael Buesker ,  Yuan Zhou ,  Eric Vanbuhler ,  Danyang Cong ,  Raamkumar Balamurthi ,  Harshit Joshi ,  Vamsi Vegunta ,  Danny Jen ,  Nitin Ravinder

IPC: H04W28/02 ,  H04W8/24 ,  H04L5/00 ,  H04W74/08

CPC classification number: H04W28/0268 ,  H04L5/0082 ,  H04W8/245 ,  H04W74/0808

Abstract: This disclosure describes systems, devices, apparatus, and methods, including computer programs encoded on storage media, for controlling a network with one or more access points (APs). A controller may be configured to schedule at least some resources of the one or more APs to improve network efficiency. The APs may measure and report a variety of information and statistics to the controller. The controller may determine one or more transmission parameters and one or more operations a given AP is permitted to perform during a respective time interval. The controller may communicate the one or more transmission parameters using an indication, such as a message. At least one AP associated with the controller may communicate with stations (STAs) using the one or more transmission parameters.

公开(公告)号：US11778666B2

公开(公告)日：2023-10-03

申请号：US17651401

申请日：2022-02-16

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04W74/08 ,  H04W16/10 ,  H04W72/54 ,  H04L5/00

CPC classification number: H04W74/0816 ,  H04W16/10 ,  H04W72/54 ,  H04L5/0055

Abstract: In some implementations, a first access point (AP) selects one or more other APs for participation with the first AP in a coordinated access point transmission session. The first AP obtains a transmission opportunity (TXOP), and transmits a frame indicating scheduling information for uplink (UL) or downlink (DL) transmissions to or from the selected APs, the scheduling information indicating a respective start time for the UL or DL transmissions to or from the selected APs, at least two of the start times being offset from one another by a time period associated with decoding a preamble of a wireless packet. The first AP transmits or receives wireless packets to or from one or more associated stations (STAs) at least partially concurrently with the transmission or reception of wireless packets by the selected APs to or from their respective associated STAs based on the scheduling information.

公开(公告)号：US11737021B2

公开(公告)日：2023-08-22

申请号：US17446085

申请日：2021-08-26

Applicant: QUALCOMM Incorporated

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

IPC: H04W52/02 ,  H04W28/02 ,  H04W74/08

CPC classification number: H04W52/0216 ,  H04W28/0236 ,  H04W28/0268 ,  H04W52/0229 ,  H04W74/0816

Abstract: This disclosure provides systems, methods, and apparatuses for wireless communication that can be used to establish a restricted target wake time (TWT) session on a wireless medium. In some implementations, an access point (AP) establishes a restricted TWT session for one or more wireless stations (STAs) associated with latency sensitive traffic, the restricted TWT session including restricted TWT service periods (SPs) during which the AP reserves access to the wireless medium for only the one or more STAs associated with the latency sensitive traffic. The AP transmits a clear-to-send (CTS) frame at a start of each restricted TWT SP, the CTS frame indicating to other STAs that the wireless medium is unavailable for a duration of the respective restricted TWT SP. The AP transmits latency sensitive data to or receives latency sensitive data from the one or more STAs during at least one of the restricted TWT SPs.

公开(公告)号：US20230224939A1

公开(公告)日：2023-07-13

申请号：US18188307

申请日：2023-03-22

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/20 ,  H04W40/24 ,  H04W92/20

CPC classification number: H04W72/53 ,  H04W72/0446 ,  H04W72/27 ,  H04W40/244 ,  H04W92/20

Abstract: 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.