公开(公告)号：US12273157B2

公开(公告)日：2025-04-08

申请号：US17437265

申请日：2020-03-06

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Hanqing Lou ,  Xiaofei Wang ,  Li-Hsiang Sun ,  Oghenekome Oteri ,  Rui Yang ,  Joseph S. Levy ,  Frank La Sita

IPC: H04B7/024 ,  H04B7/06 ,  H04B17/336

Abstract: A method for multiple access point (AP) transmission is disclosed. The method comprises receiving a repetition beacon from each of a plurality of APs, each received repetition beacon comprising a common information part and an AP-specific information part; decoding at least a subset of the received common information parts to obtain a first parameter; decoding the received AP-specific information parts to obtain a second parameter for each of the plurality of APs; performing a calculation based on the first parameter, the obtained second parameters and a number of the plurality of APs to obtain a calculation result; and transmitting a feedback based on the calculation result to the plurality of AP.

公开(公告)号：US12256392B2

公开(公告)日：2025-03-18

申请号：US17610342

申请日：2020-05-01

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Xiaofei Wang ,  Hanqing Lou ,  Alphan Sahin ,  Li-Hsiang Sun ,  Joseph S. Levy ,  Rui Yang

IPC: H04W72/21 ,  H04W72/543 ,  H04W72/56 ,  H04W74/00 ,  H04W74/06 ,  H04W84/12

Abstract: Techniques, devices and systems are disclosed for generating a resource request poll comprising at least one response criteria, transmitting the resource request poll, receiving a resource request report from STAs that meet at least one response criteria. A trigger frame may be transmitted to the at least one STA based on the resource request report from the at least one STA. The response criteria may include at least one of a NFRP, a UL access type, a delay bound, an NDP feedback report AC, a number of indicated AID bits, an AID range, an information requested, a number of bits to be included in NDP feedback report or preamble, number of LTFs to be included in the NDP feedback report or preamble, and a number of bits to be included in NDP feedback report or preamble per LTF or per N LTF symbol.

公开(公告)号：US12255850B2

公开(公告)日：2025-03-18

申请号：US15542140

申请日：2016-01-08

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Oghenekome Oteri ,  Yuan Sheng Jin ,  Hanqing Lou ,  Xiaofei Wang ,  Robert L. Olesen

IPC: H04L5/00 ,  H04W24/02 ,  H04W72/12 ,  H04W72/541 ,  H04W84/12 ,  H04W88/06

Abstract: An access point (AP) may determine that a basic service set (BSS) color of an overlapping BSS (OBSS) associated with a neighboring AP is a same color as a BSS color of the AP. A BSS color change announcement message may be generated having BSS color information and a color switching time. The BSS color information may indicate a BSS color for the AP and the color switching time may indicate a time until the AP switches to the BSS color.

公开(公告)号：US20250015959A1

公开(公告)日：2025-01-09

申请号：US18888944

申请日：2024-09-18

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Xiaofei Wang ,  Hanqing 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 between the STA and the AP. 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：US20240430802A1

公开(公告)日：2024-12-26

申请号：US18823088

申请日：2024-09-03

Applicant: InterDigital Patent Holdings, Inc.

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

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

Abstract: Methods for transmitting and receiving enhanced broadcast transmissions are provided herein. A method performed by a receiving station (STA) may include receiving, from a transmitting STA, a frame including a broadcast service element The broadcast service element includes one or more fields associated with enhanced broadcast service (eBCS) traffic streams that may be provided by the STA. At least one of the fields comprises an identifier associated with eBCS traffic streams, a field indicating whether negotiation with the transmitting STA is required to receive data of the eBCS traffic streams, and scheduling information for receiving a broadcast transmission including the data of the eBCS traffic streams. The method includes receiving, based on the scheduling information, the broadcast transmission including the identifier associated with the eBCS traffic streams and data of the eBCS traffic streams.

公开(公告)号：US20240414043A1

公开(公告)日：2024-12-12

申请号：US18812630

申请日：2024-08-22

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

Abstract: Methods and apparatuses for coexistence of signaling of different 802.11 protocols are provided herein. A station (STA) or access point (AP) may transmit a protocol data unit (PDU) of a first 802.11 protocol and a PDU of a second 802.11 protocol. The transmission of the PDU of the first 802.11 protocol and the transmission of the PDU of the second 802.11 protocol may be at least quasi-orthogonal.

公开(公告)号：US12120742B2

公开(公告)日：2024-10-15

申请号：US18092684

申请日：2023-01-03

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Ahmad Reza Hedayat ,  Oghenekome Oteri ,  Hanqing Lou ,  Mahmoud Taherzadeh Boroujeni ,  Xiaofei Wang ,  Rui Yang ,  Shahrokh Nayeb Nazar

IPC: H04W74/0816 ,  H04L5/00 ,  H04W16/14 ,  H04W52/34 ,  H04W72/0446 ,  H04W72/23

CPC classification number: H04W74/0816 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0082 ,  H04L5/0091 ,  H04W52/34 ,  H04W72/0446 ,  H04W72/23 ,  H04W16/14

Abstract: Methods, systems, and devices for channel access and listen-before-talk approaches for new radio operation in unlicensed bands and/or licensed bands. A gNB and a wireless transmit/receive unit (WTRU) may operate in unlicensed spectrum. The gNB may perform listen-before-talk operation, and when successful, may send a downlink control channel with a slot format indication (SFI) to the WTRU. There may also be a handshaking procedure with an exchange of a request to transmit (RTT) and a request to receive (RTR). Prior to receiving the downlink channel, the WTRU may monitor search spaces at a first level, and once the downlink channel is received the WTRU may monitor search spaces at a second level. At the end of transmission, the WTRU may revert back to monitoring search spaces at the first level. In one example, the first level may be a mini-slot level and the second level may be a slot level.

公开(公告)号：US20240322962A1

公开(公告)日：2024-09-26

申请号：US18732364

申请日：2024-06-03

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Hanqing Lou ,  Li-Hsiang Sun ,  Rui Yang ,  Joseph S. Levy ,  Xiaofei Wang

IPC: H04L5/00 ,  H04W24/10

CPC classification number: H04L5/0046 ,  H04L5/006 ,  H04W24/10

Abstract: Methods and apparatuses are described herein for feedback based midamble adaptation. For example, a first station (STA) may transmit, to a second STA, a request frame that includes an indicator indicating a request for midamble information. The first STA may receive, from the second STA, a response frame that includes the midamble information determined by the second STA based on one or more channel measurements associated with the second STA. The midamble information may include a midamble report, a Doppler measurement report, or the like. The midamble report or the Doppler measurement report may include at least one of a midamble periodicity, a mobility/Doppler level, or the like. Based on the midamble information, the first STA may generate a physical layer convergence procedure (PLCP) protocol data unit (PPDU) that includes at least one midamble within a data portion of the PPDU.

公开(公告)号：US20240275445A1

公开(公告)日：2024-08-15

申请号：US18571336

申请日：2022-06-20

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC: H04B7/06 ,  H04W84/12

CPC classification number: H04B7/0617 ,  H04B7/0634 ,  H04W84/12

Abstract: Methods and apparatuses for Multi-AP channel sounding for Wireless Area Networks (WLAN) are disclosed. A method performed by a beamformee may compromise: receiving, from a beamformer, a null data packed (NDP) announcement frame (NDPA); receiving, from the beamformer, an NDP frame; receiving, from the beamformer, an enhanced beamforming request poll (BFRP) trigger frame including an indication of a feedback format; and transmitting, to the beamformer based on the NDP and NDPA, using a format indicated by the feedback format of the BFRP trigger frame, a feedback frame including a feedback report. The trigger frame may be an enhanced beamforming report poll (BFRP) trigger frame. The feedback report may be a beamforming report or a vector index (VI) feedback report. The beamformer may be an access point (AP) and the beamformee may be a station (STA).

公开(公告)号：US12003441B2

公开(公告)日：2024-06-04

申请号：US17626543

申请日：2020-07-10

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Hanqing Lou ,  Li-Hsiang Sun ,  Rui Yang ,  Joseph S. Levy ,  Xiaofei Wang

IPC: H04L5/00 ,  H04W24/10

CPC classification number: H04L5/0046 ,  H04L5/006 ,  H04W24/10

Abstract: Methods and apparatuses are described herein for feedback based midamble adaptation. For example, a first station (STA) may transmit, to a second STA, a request frame that includes an indicator indicating a request for midamble information. The first STA may receive, from the second STA, a response frame that includes the midamble information determined by the second STA based on one or more channel measurements associated with the second STA. The midamble information may include a midamble report, a Doppler measurement report, or the like. The midamble report or the Doppler measurement report may include at least one of a midamble periodicity, a mobility/Doppler level, or the like. Based on the midamble information, the first STA may generate a physical layer convergence procedure (PLCP) protocol data unit (PPDU) that includes at least one midamble within a data portion of the PPDU.