中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

44 records (took 0.021 seconds)

    METHODS FOR SUPPORTING BSS EDGE USER TRANSMISSIONS
    21.
    发明申请
    METHODS FOR SUPPORTING BSS EDGE USER TRANSMISSIONS 有权

    公开(公告)号：US20220217770A1

    公开(公告)日：2022-07-07

    申请号：US17610343

    申请日：2020-05-08

    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

    Inventor： Li Hsiang Sun ,  Hanqing Lou ,  Alphan Sahin ,  Xiaofei Wang ,  Rui Yang ,  Frank La Sita

    IPC: H04W74/00 ,  H04W74/08 ,  H04W72/04 ,  H04W72/10 ,  H04B17/318

    Abstract: Methods and apparatuses for enhancing random access procedures are described herein. A method performed by an access point (AP) may comprise allocating a plurality of random access (RA) resource units (RA-RUs) for transmitting a message from a station (STA) to the AP over an upper or lower frequency band. The method may comprise transmitting, to a station (STA), one or more physical layer convergence procedure (PLCP) protocol data unit (PPDU) over the upper or lower frequency bands. Each of the one or more PPDUs may include a trigger frame, and the trigger frame may include an indication of the plurality of RA-RUs and a target received signal strength indicator (TRSSI) associated with at least one of the upper or lower frequency bands. The method may comprise receiving, in response to the trigger frame, the message from the STA in one of the plurality of RA-RUs.

    MULTIDIMENSIONAL BEAM REFINEMENT PROCEDURES AND SIGNALING FOR MMWAVE WLANS
    23.
    发明申请
    MULTIDIMENSIONAL BEAM REFINEMENT PROCEDURES AND SIGNALING FOR MMWAVE WLANS 有权

    公开(公告)号：US20210234603A1

    公开(公告)日：2021-07-29

    申请号：US17230473

    申请日：2021-04-14

    Applicant: InterDigital Patent Holdings, Inc.

    Inventor： Oghenekome Oteri ,  Hanqing Lou ,  Alphan Sahin ,  Rui Yang ,  Cen Lin ,  Xiaofei Wang ,  Li Hsiang Sun

    IPC: H04B7/06

    Abstract: Systems and methods for multidimensional beam refinement procedures and signaling for millimeter wave WLANs. In some embodiments, there are multi-dimensional enhanced beam refinement protocol MAC and PHY frame designs that extend the MAC packet and the PPDU format with or without backwards compatibility. The multiple dimensions may be supported jointly or separately. In other embodiments, the increased data signaled in the eBRP frame designs may be more efficiently signaled with reduced BRP frame sizes, such as through a training type dependent BRP minimum duration selection procedure or use of null data packet BRP frames. In further embodiments, the maximum duration of the interframe spacing between BPR packets may be varied to improve the efficiency of BRP operation.

    Waveform coding with modulation for single-user and multiple-user transmissions
    24.
    发明授权
    Waveform coding with modulation for single-user and multiple-user transmissions 有权

    公开(公告)号：US10911203B2

    公开(公告)日：2021-02-02

    申请号：US16609976

    申请日：2018-04-30

    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

    Inventor： Alphan Sahin ,  Oghenekome Oteri ,  Hanqing Lou ,  Xiaofei Wang ,  Li Hsiang Sun ,  Rui Yang

    IPC: H04L5/00 ,  H04L27/26

    Abstract: A wireless transmit/receive unit (WTRU) may be configured to perform wake up radio (WUR) for one or more WUR receivers. For example, the WTRU may transmit a common preamble to a first WUR receiver using a first frequency range. The WTRU may transmit a first WUR packet to the WUR receiver, after the common preamble. The WTRU may transmit the common preamble to a second WUR receiver using a second frequency range. The WTRU may transmit a second WUR packet after the common preamble, The bandwidth associated with the second WUR packet and the bandwidth associated with the first WUR packet may be smaller than the bandwidth associated with the common preamble, which may avoid interference from other transmitters {e.g., 802.11 transmitters, 802.11 stations, and 802.11 radios). The bandwidth associated with the first WUR packet and the bandwidth associated with the second WUR packet may not be coextensive with one another.

    MULTI-LINK STEERING AND CONTROL IN WLAN
    25.
    发明申请
    MULTI-LINK STEERING AND CONTROL IN WLAN 有权

    公开(公告)号：US20250048174A1

    公开(公告)日：2025-02-06

    申请号：US18921961

    申请日：2024-10-21

    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

    Inventor： Li Hsiang Sun ,  Hanqing Lou ,  Xiaofei Wang

    IPC: H04W28/02 ,  H04W76/20 ,  H04W84/12

    Abstract: Methods and apparatus for multi-link (ML) steering and control in wireless local area network (WLAN) are disclosed. A station (STA) multi-link device (MLD) may communicate over a plurality of links. The STA MLD may receive, from an access point (AP) MLD, on a first link of the plurality of links, a first frame comprising a ML element, where the ML element includes pausing information indicating a period of time during which the STA MLD will pause transmission and reception on the first link. The STA MLD may send, to the AP MLD, on a second link of the plurality of links and during the indicated period of time, uplink (UL) traffic, wherein the first link and the second link are multi-directional links. The STA MLD may be non-simultaneous transmit and receive (non-STR), and the AP MLD may be capable of STR.

    MULTI CHANNEL MULTIPLE INPUT MULTIPLE OUTPUT BEAMFORMING TRAINING IN MILLIMETER WAVE SYSTEMS
    27.
    发明公开
    MULTI CHANNEL MULTIPLE INPUT MULTIPLE OUTPUT BEAMFORMING TRAINING IN MILLIMETER WAVE SYSTEMS 审中-公开

    公开(公告)号：US20240120970A1

    公开(公告)日：2024-04-11

    申请号：US18390801

    申请日：2023-12-20

    Applicant: InterDigital Patent Holdings, Inc.

    Inventor： Hanqing Lou ,  Li Hsiang Sun ,  Oghenekome Oteri ,  Xiaofei Wang ,  Rui Yang

    IPC: H04B7/0417 ,  H04B7/0452

    CPC classification number: H04B7/0417 ,  H04B7/0452

    Abstract: Systems, methods, and devices for beamforming (BF) training are disclosed. In some examples, a receiver is configured to receive sector sweep (SSW) training frames from an initiator device that each indicate an antenna sector of the initiator device. A transmitter is configured to transmit sector sweep (SSW) training frames to the initiator device that indicate a best received antenna sector of the initiator device. The receiver receives a sector sweep feedback (SSW FB) frame from the initiator device, and the transmitter transmits transmit a sector sweep acknowledgement (SSW ACK) frame to the initiator device that indicates an antenna sector of the initiator device that is different from the antenna sector indicated by the SSW FB frame, if the SSW FB frame was best received by an antenna not corresponding to the best received antenna sector of the initiator device.

    METHODS FOR POWER EFFICIENT BROADCASTING IN WLAN
    28.
    发明公开
    METHODS FOR POWER EFFICIENT BROADCASTING IN WLAN 审中-公开

    公开(公告)号：US20230388753A1

    公开(公告)日：2023-11-30

    申请号：US18032383

    申请日：2021-10-19

    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

    Inventor： Xiaofei Wang ,  Hanqing Lou ,  Li Hsiang Sun ,  Joseph Levy

    IPC: H04W4/06 ,  H04W72/12

    CPC classification number: H04W4/06 ,  H04W72/12

    Abstract: Systems, methods, and devices for broadcast service negotiation and non-simultaneous transmit-receive (STR) channel blindness recovery are provided herein. Some methods performed by a Wireless Transmit/Receive Unit (WTRU), may comprise operating over a first link; operating over a second link; receiving a frame including a Network Allocation Vector (NAV) setting associated with the second link, the NAV setting indicating a time duration; and sending a transmission over the first link, wherein a duration of the transmission over the first link is shorter than or equal to the time duration indicated by the NAV setting. The frame including the NAV setting indicates that the time duration may not be extended or modified. The method may further comprise sending, by the WTRU, an indication that it the WTRU is capable of performing a multi-link restricted transmission. The WTRU may enter a sleep mode on the first link after sending the transmission over the first link.

    MULTI-AP SETUP AND TRANSMISSION PROCEDURES FOR WLAN SYSTEMS
    29.
    发明公开
    MULTI-AP SETUP AND TRANSMISSION PROCEDURES FOR WLAN SYSTEMS 审中-公开

    公开(公告)号：US20230319886A1

    公开(公告)日：2023-10-05

    申请号：US18023515

    申请日：2021-09-01

    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

    Inventor： Xiaofei Wang ,  Hanqing Lou ,  Li Hsiang Sun ,  Mahmoud Saad ,  Rui Yang ,  Ushasi Ghosh

    IPC: H04W74/08 ,  H04L5/00

    CPC classification number: H04W74/0816 ,  H04L5/0035

    Abstract: Methods and apparatuses are described herein for multiple-access point (multi-AP) sounding procedures in a wireless local area network (WLAN). A coordinating AP (CAP) may receive, from one or more member APs in a multi-AP set (MAPS), one or more indications indicating that the one or more member APs are capable of multi-AP sounding during a transmission opportunity (TXOP). The CAP may transmit a CAP TXOP indication (CTI) frame indicating that the multi-AP sounding is to be performed during a TXOP acquired by the CAP. The CAP may receive a CAP TXOP request (CTR) frame indicating that the one or more member APs of the MAP are willing to perform multi-AP sounding during the TXOP. The CAP may transmit a CAP TXOP AP schedule (CTAS) frame indicating a transmission schedule for one or more sounding frames to be transmitted by the one or more member APs during the TXOP.

    "> METHODS, ARCHITECTURES, APPARATUSES AND SYSTEMS DIRECTED TO PHYSICAL LAYER SIGNALING IN A WIRELESS LOCAL AREA NETWORK (
    30.
    发明申请
    METHODS, ARCHITECTURES, APPARATUSES AND SYSTEMS DIRECTED TO PHYSICAL LAYER SIGNALING IN A WIRELESS LOCAL AREA NETWORK ("WLAN") SYSTEM 有权

    公开(公告)号：US20230114857A1

    公开(公告)日：2023-04-13

    申请号：US17911310

    申请日：2021-03-15

    Applicant: InterDigital Patent Holdings, Inc.

    Inventor： Hanqing Lou ,  Li Hsiang Sun ,  Rui Yang ,  Xiaofei Wang

    IPC: H04W28/06 ,  H04L5/00 ,  H04L27/26

    Abstract: Procedures, methods, architectures, apparatuses, systems, devices, and computer program products directed physical layer signaling in a wireless local area network system are provided. Among the methods is a method that may include any of generating an extremely high throughput (EHT) physical (PHY) layer protocol data unit (PDU) (PPDU) based on a PPDU format defining a preamble comprising (i) a fixed duration universal signaling (U-SIG) field, (ii) an EHT signaling (EHT-SIG) field, and (iii) an EHT short training field (EHT-STF), wherein the U-SIG and EHT-SIG fields respectively comprise an extra signaling indicator and extra signaling to support a third feature; and transmitting the U-SIG and EHT-SIG fields on a first bandwidth segment, followed by the EHT-STF on any of the first bandwidth segment and a second bandwidth segment, followed by (iii) an EHT data field on any of the first and second bandwidth segments.

Patent Agency Ranking