公开(公告)号：US20250106861A1

公开(公告)日：2025-03-27

申请号：US18973383

申请日：2024-12-09

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Afshin Haghighat ,  Oghenekome Oteri ,  Alphan Sahin ,  Shahrokh Nayeb Nazar ,  Moon-il Lee ,  Prasanna Herath

IPC: H04W72/23 ,  H04B7/0456 ,  H04B7/06

Abstract: Methods, apparatuses, systems, devices, and computer program products directed to phase-continuous frequency selective precoding are provided. Included among these classes are methods for use in connection with dynamic precoding resource block group (PRG) configuration and with codebook based transmission configuration. A representative of such methods may include any of receiving signaling indicating transmit precoding information; determining a candidate PRG size using any of the transmit precoding information, a rule for determining a PRG size and configured PRG sizes; and configuring or reconfiguring a wireless transmit/receive device in accordance with the candidate PRG size. Another of the representative methods may include reporting a transmission coherence capability of a wireless transmit/receive unit; receiving a codebook subset restriction (CBSR) commensurate with the transmission coherence capability; determining a transmit precoding matrix indices (TPMI) size based on the CBSR; receiving a TPMI; and detecting or decoding the TPMI based on the determined TPMI size.

公开(公告)号：US12192154B2

公开(公告)日：2025-01-07

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: H04W72/12 ,  H04L5/14 ,  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：US20240405829A1

公开(公告)日：2024-12-05

申请号：US18799163

申请日：2024-08-09

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04B7/06 ,  H04B7/0417 ,  H04W24/10 ,  H04W88/08

Abstract: An access point (AP) may transmit a null data packet announcement (NDPA) with an indication of a resource unit of a bandwidth that feedback is requested. The AP may transmit a null data packet (NDP) for measurement of a channel quality for a resource unit of a bandwidth. The AP may transmit, based on a response, another feedback request for resource units of the bandwidth.

公开(公告)号：US12137413B2

公开(公告)日：2024-11-05

申请号：US18501706

申请日：2023-11-03

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04W52/02 ,  H04W28/16 ,  H04W84/12

Abstract: Procedures and mechanisms for narrowband multi-channel transmission for wakeup radio (WUR) operation are disclosed. A station (STA) operating in WUR mode may have its a primary connectivity radio (PCR) turned off and its WUR turned and operating according to previously negotiated WUR operating parameters. The STA may monitor, for WUR beacons and frames over a first WUR channel, and determine that the first WUR channel does not support reliable transmission based on no beacons being received within a first duration. The STA may turn off the WUR, and turn on the PCR to send a first short WUR frame including a wakeup reason, and receive a second short WUR frame with a WUR channel assignment. The STA may turn off the PCR, turn on the WUR, and monitor for WUR signals on a second WUR channel according to the WUR channel assignment and the previously negotiated WUR operating parameters.

公开(公告)号：US20240314794A1

公开(公告)日：2024-09-19

申请号：US18672632

申请日：2024-05-23

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Erdem Bala ,  Afshin Haghighat ,  Mihaela C. Beluri ,  Rui Yang ,  Ananth Kini ,  Janet A. Stern-Berkowitz ,  Alphan Sahin

IPC: H04W72/23 ,  H04L1/1867 ,  H04L27/00 ,  H04W52/26 ,  H04W72/51 ,  H04W72/541

CPC classification number: H04W72/23 ,  H04L1/1893 ,  H04L27/0008 ,  H04W72/51 ,  H04W72/541 ,  H04W52/262

Abstract: A wireless transmit/receive unit (WTRU) may receive assignment information for receiving a first codeword using a first modulation and coding scheme (MCS) in a first set of resource blocks (RBs), and a second codeword using a second, different MCS in a second set of RBs. The first and second sets of RBs may be in a first time interval in a first bandwidth part using a first subcarrier spacing. The WTRU may receive, in symbols of the first time interval in the first bandwidth part, the first codeword using the first MCS in the first set of RBs and the second codeword using the second, different MCS in the second set of RBs. At least a portion of the first codeword and at least a portion of the second codeword may be received in at least a first symbol in the symbols in the first time interval.

公开(公告)号：US20240215034A1

公开(公告)日：2024-06-27

申请号：US18598570

申请日：2024-03-07

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Moon-il Lee ,  Erdem Bala ,  Janet A. Stern-Berkowitz ,  Mihaela C. Beluri ,  Alphan Sahin ,  Rui Yang

IPC: H04W72/21 ,  H04L5/00 ,  H04L27/26 ,  H04W4/70

CPC classification number: H04W72/21 ,  H04L5/001 ,  H04L5/0048 ,  H04L27/261 ,  H04W4/70

Abstract: Systems, methods, and instrumentalities are disclosed for phase noise reference signal (PNRS) transmission, comprising receiving, at a wireless transmit receive unit (WTRU), scheduling information for a Physical Uplink Shared Channel (PUSCH) transmission, wherein the scheduling information includes an indication of a set of physical resource blocks (PRBs) and a modulation coding scheme (MCS) level, determining a density for the PNRS transmission based on at least one of: the MCS level, a frequency band for the PUSCH transmission, or a subcarrier spacing of the PUSCH transmission, and transmitting the PUSCH in the scheduled set of PRBs using the determined density of PNRS.

公开(公告)号：US20240121058A1

公开(公告)日：2024-04-11

申请号：US18532739

申请日：2023-12-07

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Moon-il Lee ,  Alphan Sahin ,  Erdem Bala ,  Afshin Haghighat ,  Frank La Sita ,  Janet A. Stern-Berkowitz

IPC: H04L5/00

CPC classification number: H04L5/0051 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0048 ,  H04L27/2613

Abstract: A system, method, and device for ensuring a number of Phase Tracking Reference Signal(s) (PT-RSs) are the same for multiple slots. A wireless transmit/receive unit (WTRU) may receive control information including a number of scheduled resource blocks (RBs) then determine a PT-RS density based on the number of scheduled RBs. The WTRU may determine a RB offset value for the WTRU based on a WTRU-ID modulo the maximum RB offset value, where the maximum value for the RB offset value may be based on at least one of the number of the scheduled RBs and the PT-RS density. The WTRU may then transmit or receive a signal with PT-RS based on the RB offset value.

公开(公告)号：US20240120972A1

公开(公告)日：2024-04-11

申请号：US18537384

申请日：2023-12-12

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC: H04B7/0417 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/08 ,  H04B17/318 ,  H04B17/336 ,  H04W80/08

CPC classification number: H04B7/0417 ,  H04B7/0486 ,  H04B7/0617 ,  H04B7/0684 ,  H04B7/088 ,  H04B17/318 ,  H04B17/336 ,  H04W80/08

Abstract: Methods and apparatuses for multiple input-multiple output (MIMO) channel access are provided herein. A method performed by a station (STA) may include receiving, from an initiating STA, a frame including information indicating a broadcast address and a control trailer. The control trailer may include information indicating that a multi-user multiple input-multiple output (MU-MIMO) frame is to be received from the initiating STA, and information indicative of a plurality of STAs, the plurality of STAs including the STA. The method may include transmitting a response frame to the indicated broadcast address based on the received frame and receiving the MU-MIMO frame from the initiating STA.

公开(公告)号：US11937285B2

公开(公告)日：2024-03-19

申请号：US17978542

申请日：2022-11-01

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC: H04B17/309 ,  H04W72/541

CPC classification number: H04W72/541 ,  H04B17/309

Abstract: 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.

公开(公告)号：US20230412217A1

公开(公告)日：2023-12-21

申请号：US18236238

申请日：2023-08-21

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC: H04B7/0452 ,  H04B7/06

CPC classification number: H04B7/0452 ,  H04B7/0619 ,  H04W84/12

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.