公开(公告)号：US11855931B2

公开(公告)日：2023-12-26

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: H04W72/12 ,  H04W84/12 ,  H04W74/08 ,  H04L5/14 ,  H04L5/04

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：US11838938B2

公开(公告)日：2023-12-05

申请号：US17108642

申请日：2020-12-01

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Hanqing Lou ,  Xiaofei Wang ,  Rui Yang ,  Mihaela C. Beluri ,  Janet A. Stern-Berkowitz

IPC: H04W72/08 ,  H04W72/541 ,  H04W4/70 ,  H04L5/00 ,  H04W74/08

CPC classification number: H04W72/541 ,  H04L5/0055 ,  H04W4/70 ,  H04W74/085

Abstract: A wireless transmit/receive unit (WTRU) may receive configuration information for a first set of resources and a second set of resources for a grantless physical uplink shared channel (PUSCH) transmission. The WTRU may determine data for transmission using the grantless PUSCH transmission. Based on the data, the WTRU may select resources from the first set or the second set for the grantless PUSCH transmission. Further, the WTRU may send the grantless PUSCH transmission including the data using the selected resources. In an example, the sending of the grantless PUSCH transmission may be part of a random access procedure. The random access procedure may be a two-step random access procedure. The random access procedure may be a random access channel (RACH) procedure. The random access procedure may depend upon a double contention pool setting, and the setting may address at least one of a data pool or a control pool.

公开(公告)号：US11838161B2

公开(公告)日：2023-12-05

申请号：US17346616

申请日：2021-06-14

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Alphan Sahin ,  Rui Yang ,  Hanqing Lou ,  Oghenekome Oteri ,  Robert Olesen ,  Fengjun Xi

IPC: H04L27/26 ,  H04B7/06 ,  H04L5/00 ,  H04B7/0452 ,  H04L25/02 ,  H04B7/0413

CPC classification number: H04L27/2613 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0626 ,  H04L5/0023 ,  H04L5/0053 ,  H04L25/024 ,  H04L25/0204

Abstract: Methods, apparatuses, and systems to enable a channel estimation of more than one channel for Multi-Input Multi-Output (MIMO) communications in a wireless network is provided. The method includes determining a first set of complex numbers comprising first channel estimation signal associated with a first channel, determining a second set of complex numbers comprising second channel estimation signal associated with a second channel, and transmitting the first set of complex numbers and the second set of complex numbers via a physical layer (PHY) frame, wherein the second set of complex numbers are complex conjugates of the first set of complex numbers.

公开(公告)号：US20230371075A1

公开(公告)日：2023-11-16

申请号：US18227177

申请日：2023-07-27

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC: H04W74/08 ,  H04W72/541 ,  H04W74/00

CPC classification number: H04W74/0816 ,  H04W72/541 ,  H04W74/006 ,  H04W84/12

Abstract: Methods and apparatus for protection of multi-user (MU) transmission are described herein. An apparatus includes a receiver, a transmitter and a processor. The receiver and the processor detect a trigger frame for an uplink (UL) multi-user (MU) transmission. The processor and the transmitter generate and send a frame in response to the trigger frame and transmit channel availability information for a plurality of channels in response to the trigger frame. The receiver and the processor detect data in a resource unit (RU) of a downlink (DL) MU physical layer (PHY) protocol data unit (PPDU) on one of the plurality of channels. The one of the plurality of channels is based on the transmitted channel availability information.

公开(公告)号：US11792846B2

公开(公告)日：2023-10-17

申请号：US17550789

申请日：2021-12-14

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Hanqing Lou ,  Guodong Zhang ,  Li-Hsiang Sun ,  Oghenekome Oteri ,  Robert L. Olesen ,  Fengjun Xi ,  Rui Yang ,  Xiaofei Wang

IPC: H04W74/08 ,  H04W72/121 ,  H04L27/26 ,  H04W84/12

CPC classification number: H04W74/08 ,  H04W72/121 ,  H04L27/26 ,  H04W84/12

Abstract: Methods and apparatus are described. A station includes a transceiver and a processor, which detect a trigger frame for an uplink (UL) multi-user (MU) transmission. The trigger frame includes a user information field with an allocation of one or more random access resource units (RUs) and a common information field with information to set high efficiency (HE) SIGNAL-A (HE-SIG-A) fields in the UL MU transmission. The transceiver and the processor generate an HE trigger-based (TB) physical layer protocol data unit (PPDU) and set an HE-SIG-A field in the HE TB PPDU using the information in the trigger frame. The transceiver and the processor select one of the one or more random access RUs and transmit the HE TB PPDU, using the selected one of the one or more random access RUs, a short inter-frame space after the trigger frame.

公开(公告)号：US11792744B2

公开(公告)日：2023-10-17

申请号：US17567614

申请日：2022-01-03

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Philip J. Pietraski ,  Rui Yang ,  Kai Li ,  Carl Wang ,  Tao Deng ,  Samian Kaur ,  Erdem Bala ,  Ravikumar V. Pragada

IPC: H04W52/34 ,  H04W52/14 ,  H04W52/32 ,  H04W52/30 ,  H04L5/00 ,  H04W16/08 ,  H04W52/28 ,  H04W52/40 ,  H04W36/00 ,  H04W52/36 ,  H04W72/21 ,  H04W24/08 ,  H04W52/24

CPC classification number: H04W52/346 ,  H04W52/146 ,  H04W52/325 ,  H04L5/001 ,  H04L5/0035 ,  H04L5/0062 ,  H04L5/0073 ,  H04W16/08 ,  H04W24/08 ,  H04W36/0069 ,  H04W36/0085 ,  H04W52/143 ,  H04W52/242 ,  H04W52/281 ,  H04W52/283 ,  H04W52/30 ,  H04W52/34 ,  H04W52/343 ,  H04W52/367 ,  H04W52/40 ,  H04W72/21 ,  Y02D30/70

Abstract: A wireless transmit/receive unit (WTRU) receives first timing advances and first power control commands from a first eNodeB and second timing advances and second power control commands from a second eNodeB and transmits, to the first eNodeB, a first physical uplink control channel using a first uplink component carrier. The first physical uplink control channel has a first timing adjusted by the first timing advances but not by the second timing advances and a first power level adjusted by the first power control commands but not by the second power control commands. The WTRU transmits a second physical uplink control channel using a second uplink component carrier. The second physical uplink control channel has a second timing adjusted by the second timing advances but not by the first timing advances and a second power level adjusted by the second power control commands but not by the first power control commands.

公开(公告)号：US20230308248A1

公开(公告)日：2023-09-28

申请号：US18023206

申请日：2021-08-25

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Satyanarayana Katla ,  Onur Sahin ,  Rui Yang

IPC: H04L5/00

CPC classification number: H04L5/006 ,  H04L5/0094

Abstract: Methods and apparatuses for orthogonal radar communication are described herein. A method performed by an Access Point (AP) may include estimating, at a first time instance, a channel frequency response (CFR) for a set of subcarriers; allocating, from the set of subcarriers, based on the estimated CFR, a subset of subcarriers for sensing and a subset of subcarriers for data transmission; and transmitting, to a station (STA), data using the subset of subcarriers for data transmission and information indicating the allocated subset of subcarriers for sensing. The method may further comprise receiving feedback from the STA and allocating, from the set of subcarriers, based on the received feedback, another subset of subcarriers for sensing and another subset of subcarriers for data transmission.

公开(公告)号：US11750323B2

公开(公告)日：2023-09-05

申请号：US17474971

申请日：2021-09-14

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Hanging Lou ,  Oghenekome Oteri ,  Rui Yang ,  Robert Olesen ,  Guodong Zhang

IPC: H04L1/00 ,  H04L1/18 ,  H04L29/12 ,  H04W84/12 ,  H04L101/622

CPC classification number: H04L1/0072 ,  H04L1/0079 ,  H04L1/18 ,  H04L2101/622 ,  H04W84/12

Abstract: A method performed by a STA may comprise receiving data of a MU-HE-PPDU, from an AP. The MU-HE-PPDU may comprise a HE-SIG-A field, a first HE-SIG-B portion and a second HE-SIG-B portion. The first HE-SIG-B portion may be received on a first channel and the second HE-SIG-B portion may be received on a second channel which is different than the first channel. The first HE-SIG-B portion may include one or more STA identifiers.

公开(公告)号：US20230019079A1

公开(公告)日：2023-01-19

申请号：US17953004

申请日：2022-09-26

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC: H04B7/0452 ,  H04B7/06

Abstract: An AP/PCP may perform user selection/pairing/grouping based on a measurement of an analog transmission (e.g., signal to noise ratio (SNR) or signal to interference plus noise ratio (SINR)). The SNRs may be used, for example by the station, to determine best beams and/or beam pairs and/or worst beams and/or beam pairs. A station may feed back the best few beams and/or beam pairs for a Tx and Rx virtual antenna pair. A station may feed back the worst few beams for the Tx and Rx virtual antenna pair. The AP/PCP may receive the indication(s) and/or use the indication(s) to group the stations.

公开(公告)号：US11522667B2

公开(公告)日：2022-12-06

申请号：US17052315

申请日：2019-05-02

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC: H04W72/12 ,  H04W84/12 ,  H04L5/14 ,  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.