公开(公告)号：US20240356659A1

公开(公告)日：2024-10-24

申请号：US18758988

申请日：2024-06-28

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Robert L. Olesen ,  Rui Yang ,  Moon-il Lee ,  Alphan Sahin ,  Hanqing Lou ,  Fengjun Xi ,  Frank La Sita ,  Byung K. Yi ,  Janet A. Stern-Berkowitz

IPC: H04B15/02 ,  H04B1/10 ,  H04B1/403 ,  H04B7/0413 ,  H04B15/00 ,  H04B17/318 ,  H04W16/14 ,  H04W88/06

CPC classification number: H04B15/02 ,  H04B1/10 ,  H04B1/1027 ,  H04B1/406 ,  H04B7/0413 ,  H04B15/00 ,  H04B17/318 ,  H04W16/14 ,  H04W88/06

Abstract: Systems, methods, and instrumentalities are disclosed for transmitting a message. For example, a first radio access technology (RAT) and/or a second RAT may be determined. The first RAT may be determined for reception of data. The second RAT may be determined for the reception of the data, perhaps for example based on an indication received via the first RAT. The data may be received via a first node associated with the first RAT and a second node associated with the second RAT.

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：US20240214039A1

公开(公告)日：2024-06-27

申请号：US18596413

申请日：2024-03-05

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Hanqing Lou ,  Oghenekome Oteri ,  Pengfei Xia ,  Robert Olesen

IPC: H04B7/0452 ,  H04B7/024 ,  H04B7/06 ,  H04L1/06 ,  H04L5/00 ,  H04L27/26 ,  H04W84/12

CPC classification number: H04B7/0452 ,  H04B7/0617 ,  H04L1/0612 ,  H04L1/0681 ,  H04L5/0094 ,  H04L27/26025 ,  H04L27/2666 ,  H04B7/024 ,  H04L5/0048 ,  H04W84/12

Abstract: A method performed by a STA may comprise transmitting an HE LTF of a data unit. The HE LTF may have a number of symbols based on a number of space-time streams utilized for the data unit. The HE LTF may be transmitted on a subset of subcarriers of a 20 MHz channel, a 40 MHZ channel or an 80 MHz channel.

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.

公开(公告)号：US20240121071A1

公开(公告)日：2024-04-11

申请号：US18545998

申请日：2023-12-19

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

CPC classification number: H04L5/14 ,  H04W72/12 ,  H04W74/0816 ,  H04W84/12

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.

公开(公告)号：US11949471B2

公开(公告)日：2024-04-02

申请号：US17568367

申请日：2022-01-04

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Hanqing Lou ,  Oghenekome Oteri ,  Pengfei Xia ,  Robert Olesen

IPC: H04L27/26 ,  H04B7/0452 ,  H04B7/06 ,  H04L1/06 ,  H04L5/00 ,  H04B7/024 ,  H04W84/12

CPC classification number: H04B7/0452 ,  H04B7/0617 ,  H04L1/0612 ,  H04L1/0681 ,  H04L5/0094 ,  H04L27/26025 ,  H04L27/2666 ,  H04B7/024 ,  H04L5/0048 ,  H04W84/12

Abstract: A method performed by a STA may comprise transmitting an HE LTF of a data unit. The HE LTF may have a number of symbols based on a number of space-time streams utilized for the data unit. The HE LTF may be transmitted on a subset of subcarriers of a 20 MHz channel, a 40 MHz channel or an 80 MHz channel.

公开(公告)号：US20240107537A1

公开(公告)日：2024-03-28

申请号：US18523370

申请日：2023-11-29

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04W72/20

CPC classification number: H04W72/20 ,  H04W84/12

Abstract: A method of multi-access point (multi-AP) communication performed by a wireless transmit/receive unit (WTRU) comprises: receiving a first trigger frame from a first access point (AP) of a plurality of APs, the first trigger frame comprising first information; receiving a second trigger frame from a second AP of the plurality of APs at a predetermined time duration after receiving the first trigger frame, the second trigger frame also comprising the first information of the first trigger frame; generating a synchronization frame based on the first trigger frame and the second trigger frame, the synchronization frame comprising synchronization information; transmitting the synchronization frame to at least the first AP and the second AP; and receiving a data transmission based on the synchronization information from each of the first AP and the second AP.

公开(公告)号：US11943039B2

公开(公告)日：2024-03-26

申请号：US18092624

申请日：2023-01-03

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04B7/15 ,  H04B7/155 ,  H04W40/24 ,  H04W52/02 ,  H04W84/04 ,  H04W36/08 ,  H04W84/12

CPC classification number: H04B7/15507 ,  H04W40/244 ,  H04W52/0216 ,  H04W52/0229 ,  H04W84/047 ,  H04W36/08 ,  H04W84/12 ,  Y02D30/70

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.