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    MULTI-LINK STEERING AND CONTROL IN WLAN
    14.
    发明公开
    MULTI-LINK STEERING AND CONTROL IN WLAN 审中-公开

    公开(公告)号：US20230308938A1

    公开(公告)日：2023-09-28

    申请号：US18019330

    申请日：2021-08-06

    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

    Inventor： Li Hsiang Sun ,  Hanqing Lou ,  Xiaofei Wang

    IPC: H04W28/02 ,  H04W76/20

    CPC classification number: H04W28/0278 ,  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.

    CHANNEL ACCESS SCHEMES FOR WIRELESS LOCAL AREA NETWORK (WLAN) WITH FULL-DUPLEX RADIOS
    17.
    发明申请
    CHANNEL ACCESS SCHEMES FOR WIRELESS LOCAL AREA NETWORK (WLAN) WITH FULL-DUPLEX RADIOS 有权

    公开(公告)号：US20230095822A1

    公开(公告)日：2023-03-30

    申请号：US18075978

    申请日：2022-12-06

    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

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

    IPC: H04L5/14 ,  H04W72/12 ,  H04W74/08

    Abstract: Methods and apparatuses are described herein for multiple access schemes for Wireless Local Area Network (WLAN) with full-duplex radios. For example, an access point (AP), in response to receiving a request to send (RTS) from a first station (STA), may transmit a full-duplex clear to send (FD CTS) to the first STA and a full-duplex request to send (FD RTS) to a second STA. In response to transmitting the FD RTS to the second STA, the AP may receive a clear to send (CTS) from the second STA. The AP may transmit, to both the first STA and the second STA, a FD trigger frame that includes scheduling information to enables FD communication with the first STA for uplink (UL) data and the second STA for downlink (DL) data at a same time. The scheduling information may include timing information and channel information for the FD communication.

    Range extension in wireless local area networks
    19.
    发明授权
    Range extension in wireless local area networks 有权

    公开(公告)号：US11575428B2

    公开(公告)日：2023-02-07

    申请号：US16934320

    申请日：2020-07-21

    Applicant: InterDigital Patent Holdings, Inc.

    Inventor： Guodong Zhang ,  Xiaofei Wang ,  Hanging Lou ,  Sudheer A. Grandhi

    IPC: H04B7/155 ,  H04W84/04 ,  H04W52/02 ,  H04W40/24 ,  H04W36/08 ,  H04W84/12

    Abstract: A method performed by STA may comprise receiving, from a first AP, a first beacon frame comprising a first relay information element including a first field that indicates whether a root AP BSSID field is included in the first relay information element, determining that a first root AP BSSID field is included in the first relay information element and determining that the first AP is a relay AP of a root AP identified by the first root AP BSSID field. The method may further comprise receiving, from a second AP, a second beacon frame comprising a second relay information element including a second field that indicates whether a root AP BSSID is included in the second relay information element and determining that a root AP BSSID field is not included in the second information element and determining that the second AP is a root AP.

    SYSTEMS AND METHODS FOR COLLISION RESOLUTION IN A WIFI OFDMA SYSTEM
    20.
    发明申请
    SYSTEMS AND METHODS FOR COLLISION RESOLUTION IN A WIFI OFDMA SYSTEM 有权

    公开(公告)号：US20220330344A1

    公开(公告)日：2022-10-13

    申请号：US17608789

    申请日：2020-05-04

    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

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

    IPC: H04W74/08 ,  H04L5/00 ,  H04L27/26 ,  H04L1/18

    Abstract: Methods and system may be used for collision detection for orthogonal frequency division multiple access (OFDMA)-based random access. A wireless transmit/receive unit (WTRU) may receive, from an access point (AP), a first trigger frame triggering random access using OFDMA. The WTRU may transmit, to the AP, in response to the first trigger frame a trigger-based frame including user specific control information in a signal (SIG) field. The WTRU may receive an acknowledgment/negative acknowledgment (ACK/NAK) message indicating that the trigger-based frame was successfully detected at the AP or that the trigger-based frame was not successfully detected at the AP. The WTRU receive, from the AP, a scheduling retransmission frame including rescheduling information for STAs with corrupted UL transmissions. On a condition that the scheduling retransmission frame indicates that a collision of the trigger-based frame was detected, the WTRU may retransmit the trigger-based frame

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