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    PER STREAM AND PER ANTENNA CYCLIC SHIFT DELAY IN WIRELESS COMMUNICATIONS AND UPLINK MULTI-USER MIMO
    72.
    发明申请
    PER STREAM AND PER ANTENNA CYCLIC SHIFT DELAY IN WIRELESS COMMUNICATIONS AND UPLINK MULTI-USER MIMO 审中-公开

    公开(公告)号：US20170201975A1

    公开(公告)日：2017-07-13

    申请号：US15400649

    申请日：2017-01-06

    Applicant: QUALCOMM Incorporated

    Inventor： Lin YANG ,  Bin TIAN

    IPC: H04W72/04 ,  H04L29/06 ,  H04L29/08 ,  H04B7/0452

    CPC classification number: H04W72/046 ,  H04B7/0452 ,  H04B7/0671 ,  H04L69/22 ,  H04L69/324 ,  H04W88/08

    Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, the apparatus may determine whether to transmit a frame with CSDs based on a number of antennas, a number of streams, or both. In another aspect, the apparatus may determine a first set of CSD values for transmitting a first set of information associated with a first portion of the frame. In a further aspect, the apparatus may determine a second set of CSD values for transmitting a second set of information associated with a second portion of the frame. In yet another aspect, the apparatus may transmit the first set of information based on the first set of CSD values and the second set of information based on the second set of CSD values using the number of antennas, the number of streams, or both.

    60 GHZ BEAM MANAGEMENT FOR WIRELESS LOCAL AREA NETWORKS (WLANS)
    73.
    发明申请
    60 GHZ BEAM MANAGEMENT FOR WIRELESS LOCAL AREA NETWORKS (WLANS) 有权

    公开(公告)号：US20250063382A1

    公开(公告)日：2025-02-20

    申请号：US18936953

    申请日：2024-11-04

    Applicant: QUALCOMM Incorporated

    Inventor： Lin YANG ,  Bin TIAN ,  Alecsander Petru EITAN ,  Youhan KIM

    IPC: H04W16/28 ,  H04B7/0417 ,  H04B7/06

    Abstract: This disclosure provides methods, devices and systems for increasing carrier frequencies for wireless communications in wireless local area networks. Some implementations more specifically relate to beamforming training operations that support wireless communications on carrier frequencies above 7 GHz. In some aspects, a beamforming initiator may initiate a beamforming training operation by transmitting a number (N) of beamforming training (BFT) packets in N TX beam directions, respectively, on a carrier frequency above 7 GHz. The beamforming responder receives one or more of the BFT packets and provides feedback to the beamforming initiator indicating the TX beam direction associated with the BFT packet having the highest received signal power. In some aspects, the beamforming responder may train its RX antennas for RX beamforming concurrently while the beamforming initiator trains its TX antennas. In some other aspects, the beamforming responder may train its RX antennas after the beamforming initiator trains its TX antennas.

    PARTIAL BANDWIDTH FEEDBACK FOR 480/640 MHZ TRANSMISSION IN WI-FI
    74.
    发明申请
    PARTIAL BANDWIDTH FEEDBACK FOR 480/640 MHZ TRANSMISSION IN WI-FI 有权

    公开(公告)号：US20250030503A1

    公开(公告)日：2025-01-23

    申请号：US18356141

    申请日：2023-07-20

    Applicant: QUALCOMM Incorporated

    Inventor： Jialing Li CHEN ,  Lin YANG ,  Bin TIAN

    IPC: H04L1/1607 ,  H04L5/00 ,  H04W72/12

    Abstract: This disclosure provides methods, components, devices and systems for partial bandwidth feedback for 480 and 640 MHz transmission in Wi-Fi. Some aspects more specifically relate to the inclusion of a partial bandwidth information field in a null data packet (NDP) announcement frame that indicates for which frequency portions of the 480 or 640 MHz channel bandwidth to generate channel information feedback. In some examples, a receiving device (for example, a station (STA)) may perform channel estimation on an NDP and transmit a beamforming report to the transmitting device (for example, an access point (AP)) based on the NDP. The transmitting device schedules the NDP using an NDP announcement frame, which includes the partial bandwidth information field. The partial bandwidth information field in the NDP announcement frame may include a frequency resolution field and a bitmap with values and lengths based on the channel bandwidth being 480 or 640 MHz.

    TECHNIQUES FOR REDUCING FEEDBACK INFORMATION
    75.
    发明公开
    TECHNIQUES FOR REDUCING FEEDBACK INFORMATION 审中-公开

    公开(公告)号：US20240297703A1

    公开(公告)日：2024-09-05

    申请号：US18434611

    申请日：2024-02-06

    Applicant: QUALCOMM Incorporated

    Inventor： Lin YANG ,  Bin TIAN ,  Jialing Li CHEN ,  Sameer VERMANI

    IPC: H04B7/06 ,  H04B7/0417 ,  H04L25/02

    CPC classification number: H04B7/066 ,  H04B7/0417 ,  H04L25/0204 ,  H04L25/0228

    Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for techniques for reducing feedback information in an extremely high throughput (EHT) wireless local area network (WLAN). A receiving device (beamformee), such as a station (STA), may receive a sounding signal from a transmitting device (beamformer), such as an access point (AP), and transmit channel feedback. The receiving device may transmit the channel feedback as part of a reduced compressed beamforming feedback (CBF) operation that includes determining a first set of channel characteristics. The receiving device may select a subset of the first set of channel characteristics and determine a set of differential characteristics based on the subset. The transmitting device may then transmit the sets of characteristics as reduced CBF to the transmitting device. The transmitting device may determine a channel estimation for beamformed signaling based on the reduced CBF.

    DISTRIBUTED RESOURCE UNIT CONFIGURATIONS
    76.
    发明公开
    DISTRIBUTED RESOURCE UNIT CONFIGURATIONS 审中-公开

    公开(公告)号：US20240171339A1

    公开(公告)日：2024-05-23

    申请号：US18531411

    申请日：2023-12-06

    Applicant: QUALCOMM Incorporated

    Inventor： Lin YANG ,  Bin TIAN

    IPC: H04L5/00 ,  H04W72/0453 ,  H04W72/1263

    CPC classification number: H04L5/0048 ,  H04W72/0453 ,  H04W72/1263

    Abstract: This disclosure provides methods, devices and systems for configuring tones for a distributed resource unit (RU) across a channel bandwidth to improve frequency diversity and available transmit power. A distributed RU may include a set of tones that may be allocated across a bandwidth that is greater than a bandwidth of the aggregate quantity of tones. The set of tones may include a set of data tones grouped into contiguous groups of one or more data tones and a set of non-contiguous pilot tones. The data tones may be mapped to useful tones over a center portion of a half-bandwidth of the channel. The pilot tones may be mapped near edge tones at edges of the channel bandwidth or near direct current tones at a center of the channel bandwidth. A system bandwidth may include one or more channel bandwidths associated with distributed RUs.

    NOMINAL AND SUBBAND PREAMBLE USAGE FOR EXTENDED RANGE
    77.
    发明公开
    NOMINAL AND SUBBAND PREAMBLE USAGE FOR EXTENDED RANGE 审中-公开

    公开(公告)号：US20240080820A1

    公开(公告)日：2024-03-07

    申请号：US18260900

    申请日：2021-03-12

    Applicant: QUALCOMM Incorporated

    Inventor： Yangjun ZHANG ,  Lin YANG ,  Yusheng YANG ,  Sandip HOMCHAUDHURI ,  James Simon CHO ,  Alireza RAISSINIA

    IPC: H04W72/0453 ,  H04W72/20

    CPC classification number: H04W72/0453 ,  H04W72/20 ,  H04W84/12

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter may detect at least one distance between the transmitter and a receiver. The transmitter may transmit, to the receiver, information using a selected band of a wide band or a narrow band, where the selected band is based at least in part on the at least one distance. Similarly, in some aspects, a receiver may detect at least one distance between the receiver and a transmitter. The receiver may receive, from the transmitter, information using a selected band of a wide band or a narrow band, where the selected band is based at least in part on the at least one distance. Numerous other aspects are described.

    PHYSICAL LAYER PREAMBLE DESIGN FOR SPECIAL PACKET TYPES
    78.
    发明公开
    PHYSICAL LAYER PREAMBLE DESIGN FOR SPECIAL PACKET TYPES 审中-公开

    公开(公告)号：US20230422078A1

    公开(公告)日：2023-12-28

    申请号：US18463197

    申请日：2023-09-07

    Applicant: QUALCOMM Incorporated

    Inventor： Jialing Li CHEN ,  Sameer VERMANI ,  Bin TIAN ,  Lin YANG

    IPC: H04W28/02 ,  H04W28/06

    CPC classification number: H04W28/0231 ,  H04W28/06

    Abstract: This disclosure provides methods, devices and systems for generating packet preambles. Some implementations more specifically relate to preamble designs for special cases such as, for example, full-bandwidth multi-user multiple-input multiple-output (MU-MIMO), single-user (SU) preamble puncturing, hybrid automatic repeat request (HARQ), and multi-AP coordination. Multi-AP coordination may refer to coordinated beamforming (CoBF), joint transmission (JT), or coordinated orthogonal frequency division multiple access (C-OFDMA). Additionally, or alternatively, some implementations more specifically relate to preamble designs that accommodate signal fields of different cases.

    60 GHZ OPERATING MODE FOR WIRELESS LOCAL AREA NETWORKS (WLANS)
    79.
    发明公开
    60 GHZ OPERATING MODE FOR WIRELESS LOCAL AREA NETWORKS (WLANS) 审中-公开

    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.

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