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    MULTI-AP CHANNEL SOUNDING PROCEDURES FOR WLAN SYSTEMS
    2.
    发明公开
    MULTI-AP CHANNEL SOUNDING PROCEDURES FOR WLAN SYSTEMS 审中-公开

    公开(公告)号：US20240243862A1

    公开(公告)日：2024-07-18

    申请号：US18558000

    申请日：2022-04-29

    申请人： INTERDIGITAL PATENT HOLDINGS, INC.

    发明人： Mahmoud Saad ,  Zinan Lin ,  Hanqing Lou ,  Xiaofei Wang ,  Rui Yang

    IPC分类号： H04L5/00

    CPC分类号： H04L5/0033

    摘要： A method performed by a station (STA) associated with a first access point (AP), wherein the first AP is part of a multi-AP (MAP) set comprising the first AP and at least a second AP, may compromise: receiving, from the second AP that the STA is not associated with, a null data packet announcement (NDPA) frame, the NDPA frame including a Special STA Info field including an association identifier (AID) relating to the association between the STA and the first AP; receiving a null data packet (NDP) frame from the second AP that the STA is not associated with; and transmitting, to the first AP, feedback based on the NDP frame.

    MULTI-AP CHANNEL SOUNDING FEEDBACK PROCEDURES FOR WLAN SYSTEMS
    3.
    发明公开
    MULTI-AP CHANNEL SOUNDING FEEDBACK PROCEDURES FOR WLAN SYSTEMS 审中-公开

    公开(公告)号：US20240223250A1

    公开(公告)日：2024-07-04

    申请号：US18556787

    申请日：2022-04-22

    申请人： INTERDIGITAL PATENT HOLDINGS, INC.

    发明人： Mahmoud Saad ,  Hanqing Lou ,  Xiaofei Wang ,  Zinan Lin ,  Rui Yang

    IPC分类号： H04B7/06

    CPC分类号： H04B7/0617 ,  H04B7/0626 ,  H04B7/0632

    摘要： A station (STA) that is associated with a first access point (AP), that is a member of a multi-AP set receives a trigger frame from a second AP that is also a member of the multi-AP set. The STA is not associated with the second AP. The trigger frame includes an association identifier (AID) relating to the association between the STA and the first AP, and an AP identifier (APID) of the first AP. The STA transmits a feedback message, to the second AP, including information indicative of a channel quality of a communication channel between the STA and the second AP. Various formats for a trigger frame to solicit feedback from an OBSS STA, are disclosed.

    Interference discovery and cancellation for WLAN with full duplex radios
    6.
    发明授权
    Interference discovery and cancellation for WLAN with full duplex radios 有权

    公开(公告)号：US11937285B2

    公开(公告)日：2024-03-19

    申请号：US17978542

    申请日：2022-11-01

    申请人： INTERDIGITAL PATENT HOLDINGS, INC.

    发明人： Hanqing Lou ,  Alphan Sahin ,  Oghenekome Oteri ,  Li-Hsiang Sun ,  Xiaofei Wang ,  Rui Yang

    IPC分类号： H04B17/309 ,  H04W72/541

    CPC分类号： H04W72/541 ,  H04B17/309

    摘要： Methods and apparatus for interference discovery for simultaneous transmission and reception are provided. In an embodiment, a station (STA) receives a STR request message from an access point (AP). The STA transmits a first STR response message to the AP based on the received STR request message. The STA receives a second STR response message transmitted from a second STA to the AP. The STA determines a received power of the received second STR response message. The STA receives a first trigger message from the AP. The first trigger message indicates a STA role field. The STA transmits interference information to the AP. The interference information is based on the determined received power. The STA role field comprises an indication of at least one or more of a primary STA and a secondary STA. The STA aggregates the interference report with a data transmission to the AP in response to the first trigger message.

    CHANNEL ACCESS SCHEMES FOR WIRELESS LOCAL AREA NETWORK (WLAN) WITH FULL-DUPLEX RADIOS
    8.
    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

    申请人： INTERDIGITAL PATENT HOLDINGS, INC.

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

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

    摘要： 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.

    SYSTEMS AND METHODS FOR COLLISION RESOLUTION IN A WIFI OFDMA SYSTEM
    9.
    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

    申请人： INTERDIGITAL PATENT HOLDINGS, INC.

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

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

    摘要： 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