公开(公告)号：US12207294B2

公开(公告)日：2025-01-21

申请号：US18323061

申请日：2023-05-24

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Hanqing Lou ,  Guodong Zhang ,  Robert Olesen ,  Xiaofei Wang

IPC: H04W4/00 ,  H04B7/0452 ,  H04W74/00 ,  H04W80/00

Abstract: Methods, devices and systems are provided for performing for multi-user (MU) transmission. A wireless transmit/receive unit (WTRU) may be configured to receive a frame, decode the received frame and determine whether the received frame is a null data packet (NDP) multi-user (MU) media access control (MAC) physical layer convergence protocol (PLCP) protocol data unit (PPDU) (NDP MU MAC PPDU) based on meeting an NDP condition. The NDP MU MAC PPDU may correspond to an MU transmission and may include a PLCP header which includes an NDP signal (SIG) field having MU control information. Based on the received frame meeting the NDP condition, the WTRU may be further configured to process the NDP SIG field, generate a response based on the NDP SIG field and the MU control information, and transmit the response.

公开(公告)号：US12170631B2

公开(公告)日：2024-12-17

申请号：US17392933

申请日：2021-08-03

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Xiaofei Wang ,  Hanging Lou ,  Monisha Ghosh ,  Sudheer A. Grandhi

IPC: H04L5/00 ,  H04L1/00 ,  H04L1/1607 ,  H04L1/1829

Abstract: A method performed by a STA may comprise transmitting a first negotiation message to an AP and receiving a second negotiation message from the AP. The first negotiation message and the second negotiation message may negotiate a block acknowledgement agreement. The method may further comprise receiving a data unit, from the AP, the data unit having a duration field indicating a duration of a block-ACK frame. The duration of the block-ACK frame may be determined based on the negotiated block ACK agreement. A block-ACK frame may be transmitted within the duration indicated by the duration field.

公开(公告)号：US12155489B2

公开(公告)日：2024-11-26

申请号：US18217285

申请日：2023-06-30

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Xiaofei Wang ,  Guodong Zhang ,  Joseph S. Levy

IPC: H04L1/1829 ,  H04L1/1607 ,  H04W52/02 ,  H04L1/00

Abstract: A method performed by a station (STA) for operating in a wireless local area network (WLAN) is provided. The method includes communicating, in an operation mode, with devices in the WLAN including another STA and transmitting, to the another STA, one or more of a data frame or a management frame including a medium access control (MAC) header. The MAC header includes an operation mode field indicating a change in one or more parameters of the operation mode. The method includes transmitting or receiving, based on a determination that the indicated change in the one or more parameters of the operation mode has taken effect, a frame to or from the another STA in accordance with the indicated change in the one or more parameters of the operation mode.

公开(公告)号：US20240381465A1

公开(公告)日：2024-11-14

申请号：US18689640

申请日：2022-10-06

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Xiaofei Wang ,  Hanqing Lou ,  Zinan Lin ,  Joseph Levy

IPC: H04W76/15 ,  H04W48/08

Abstract: A method performed by a multi-multi-link device (MMLD) architecture comprising a plurality of access points (APs) may comprise transmitting a frame, by an AP of the MMLD, wherein the frame may include a multi-multi-link device (MMLD) frame element which indicates that the AP is part of a multi-link device (MLD) that is a MMLD. The frame may comprise a beacon, short beacon, probe response, fast initial link setup (FILS) discovery frame, association response frame, or the like, or any appropriate combination thereof. The MMLD element may comprise one or more of an element identifier, length, MMLD identifier, MMLD media access control (MAC) address, partial reporting field, number of reported MLDs field and/or an MLD info field. The MLD may communicate with other MLDs of the multiple MLDs during a transmit wake time (TWT) service period (SP). The MLD may be in a doze state during non-TWT SPs.

公开(公告)号：US20240364397A1

公开(公告)日：2024-10-31

申请号：US18763156

申请日：2024-07-03

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Guodong Zhang ,  Hanqing Lou ,  Xiaofei Wang

IPC: H04B7/06 ,  H04J11/00 ,  H04W52/46 ,  H04W74/0808 ,  H04W74/0816

CPC classification number: H04B7/0617 ,  H04J11/0023 ,  H04W52/46 ,  H04W74/0808 ,  H04W74/0816

Abstract: A station (STA) may receive a first wireless signal including a preamble of a packet from a first access point (AP). An energy level of the signal received may exceed a clear channel assessment (CCA) threshold. The STA may issue a primitive to stop reception of the packet. Further, the STA may return to a receive state based on the primitive. Additionally, the STA may determine, using a carrier sense multiple access (CSMA) protocol, to ignore a payload portion of the packet based on information contained in the preamble and adjust the CCA threshold to account for the payload portion of the packet. The STA may then access a wireless medium using the CSMA protocol during the payload portion of the packet using the adjusted CCA threshold. Using the adjusted CCA threshold, the STA may receive a second wireless signal from a second AP.

公开(公告)号：US12082112B2

公开(公告)日：2024-09-03

申请号：US17434571

申请日：2020-02-28

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Xiaofei Wang ,  Oghenekome Oteri ,  Joseph S. Levy ,  Hanqing Lou ,  Li-Hsiang Sun

IPC: H04W52/00 ,  H04W48/08 ,  H04W48/16 ,  H04W52/02 ,  H04W84/12

CPC classification number: H04W52/0229 ,  H04W48/08 ,  H04W48/16 ,  H04W52/0219 ,  H04W84/12

Abstract: A method for use in a wireless transmit/receive unit (WTRU) is disclosed. The method comprises: generating, by a Station Management Entity (SME), a request primitive enabling a wake-up radio (WUR) scanning process for WUR discovery frames transmitted by one or more access points (APs), the request primitive comprising a plurality of first parameters; conducting the WUR scanning process using WUR based on the plurality of the first parameters; generating, at a MAC layer, at least one confirm primitive based on a result of the WUR scanning process and at least a part of the plurality of first parameters; and communicating, from the MAC layer to the SME, the at least one confirm primitive.

公开(公告)号：US12081383B2

公开(公告)日：2024-09-03

申请号：US17499563

申请日：2021-10-12

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2697 ,  H04L5/0007 ,  H04L5/0053 ,  H04L27/26035 ,  H04L27/2613 ,  H04L27/2636 ,  H04L27/2666

Abstract: A wireless transmit/receive unit (WTRU) or access point (AP) may transmit a protocol data unit (PDU) of a first 802.11 protocol and a preamble and data of a second 802.11 protocol. The preamble and data of the second 802.11 protocol may be transmitted on resources of the PDU of the first 802.11 protocol with shaping sequences for concurrent transmission.

公开(公告)号：US20240267942A1

公开(公告)日：2024-08-08

申请号：US18439286

申请日：2024-02-12

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04W72/541 ,  H04B17/309

CPC classification number: H04W72/541 ,  H04B17/309

Abstract: In an embodiment for interference discovery for simultaneous transmission and reception, 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.

公开(公告)号：US20240147274A1

公开(公告)日：2024-05-02

申请号：US18407067

申请日：2024-01-08

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Oghenekome Oteri ,  Hanqing Lou ,  Nirav B. Shah ,  Xiaofei Wang ,  Rui Yang ,  Guodong Zhang ,  Frank La Sita ,  Robert L. Olessen

IPC: H04W24/08 ,  H04J11/00 ,  H04W52/34 ,  H04W74/00 ,  H04W74/0808 ,  H04W84/12

CPC classification number: H04W24/08 ,  H04J11/00 ,  H04W52/34 ,  H04W74/006 ,  H04W74/0808 ,  H04W84/12

Abstract: Device, systems, and/or techniques for using sub-channel signaling information between an access point and a first station are disclosed. In one aspect, a method performed by a station (STA) includes: receiving, from a neighboring STA in an overlapping basic service set (OBSS), a physical (PHY) layer preamble that includes a signal field indicating a plurality of sub-bands and associated power thresholds for Uplink Orthogonal Frequency-Divisional Multiple Access (UL OFDMA) transmission, that are available for OBSS spatial reuse (SR) by the STA; and sending, to an AP with which the STA is associated, an UL OFDMA transmission using a sub-band of the plurality of sub-bands and an associated power threshold indicated in the signal field. Additional embodiments are disclosed.

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.