公开(公告)号：US20250016822A1

公开(公告)日：2025-01-09

申请号：US18895127

申请日：2024-09-24

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Hussain Elkotby ,  Anantharaman Balasubramanian ,  Marian Rudolf ,  Tanbir Haque ,  Patrick Cabrol ,  Ravikumar Pragada

IPC: H04W74/00 ,  H02J50/00 ,  H02J50/20 ,  H02J50/40 ,  H04L47/26 ,  H04W28/02

Abstract: Methods and apparatus for waveform design and signaling for energy harvesting (EH) in a wireless network are disclosed. In an example, a method includes receiving a control message including a contention-based backscattering configuration, determining parameters for transmitting a feedback within a contention-based transmission window based on the contention-based backscattering configuration, detecting feedback transmissions sent by other WTRUs within the contention-based transmission window, wherein each feedback transmission includes an EH capability indication, determining whether an EH capability detected from the feedback transmissions matches the EH capability of the WTRU, if a matched EH capability is detected from the feedback transmissions within the contention-based transmission window, delaying a transmission of the feedback, and if no matched EH capability is detected from the feedback transmissions within the contention-based transmission window, transmitting the feedback using the determined parameters.

公开(公告)号：US20240106532A1

公开(公告)日：2024-03-28

申请号：US18276293

申请日：2022-02-08

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Nagi Mahalingam ,  Ravikumar Pragada ,  Tanbir Haque ,  Hussain Elkotby

IPC: H04B7/22 ,  H04W52/02 ,  H04W72/044 ,  H04W72/543

CPC classification number: H04B7/22 ,  H04W52/0216 ,  H04W72/0473 ,  H04W72/543

Abstract: Systems, methods, and devices for wireless transmissions based on backscattering. A backscatter indication message (BID) is received from an access point (AP). An interrogation signal is received. Uplink data is transmitted to the AP based on the BID and the interrogation signal. In some implementations, the interrogation signal is received from the AP. In some implementations, the BID indicates a backscatter duration, and the uplink data is transmitted to the AP for the backscatter duration. In some implementations, the uplink data is transmitted to the AP concurrently with receiving the interrogation signal. In some implementations, energy is harvested from the interrogation signal. In some implementations, the uplink data is transmitted to the AP subsequent to the interrogation signal, based on the energy harvested from the interrogation signal. In some implementations, the interrogation signal includes a compensation signal based on channel conditions and/or based on backscattering from the WTRU.

公开(公告)号：US20240064818A1

公开(公告)日：2024-02-22

申请号：US18267273

申请日：2021-12-16

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Alpaslan Demir ,  Sanjay Goyal ,  Hussain Elkotby ,  Tanbir Haque ,  Ravikumar Pragada ,  Patrick Cabrol ,  Mihaela Beluri

IPC: H04W74/08 ,  H04W56/00

CPC classification number: H04W74/0833 ,  H04W56/001

Abstract: Methods, systems, and devices for in-channel narrow-band (NB) companion air interface (CAI) assisted wideband (WB) random access channel (RACH) access. Periodic NB downlink (DL) synchronization sequences are detected. Range information is estimated by measuring the periodic NB DL synchronization sequences; and determining an NB CAI RACH occasion. The range information is transmitted to a gNode B (gNB), or other base station, in a NB CAI RACH procedure. At least one selected WB sequence based on the range information and at least one scheduled WB RACH occasion based on the NB CAI RACH occasion are received from the gNB. A contention free WB RACH procedure is performed based on the received at least one selected WB sequence and the at least one scheduled WB RACH occasion.

公开(公告)号：US20230393254A1

公开(公告)日：2023-12-07

申请号：US18032047

申请日：2021-10-14

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Sanjay Goyal ,  Mihaela Beluri ,  Ojas Kanhere ,  Ravikumar Pragada ,  Hussain Elkotby ,  Patrick Cabrol ,  Tanbir Haque ,  Alpaslan Demir

IPC: G01S13/00 ,  G01S7/00

CPC classification number: G01S13/003 ,  G01S7/003

Abstract: Systems, methods, and instrumentalities are disclosed herein associated with enabling target localization with bi/multi-static measurements in new radio (NR). Bi-static or multi-static configurations with potential targets may be formed with nodes (e.g., WTRUs, gNBs, etc.) of mobile wireless communication systems, for example, to enable target localization applications. Target localization may be enhanced based on using determined configurations to reduce target localization estimation errors.

公开(公告)号：US12216222B2

公开(公告)日：2025-02-04

申请号：US17796187

申请日：2021-01-29

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Loran Jatunov ,  Hussain Elkotby ,  Tanbir Haque ,  Patrick Cabrol ,  Ravikumar Pragada

IPC: G01S5/02 ,  G01S11/02 ,  G01S13/84 ,  H04W64/00

Abstract: A method for use in a wireless transmit/receive unit (WTRU) configured to communicate through a zero energy (ZE) interface in accordance with an embodiment disclosed herein is provided. The method includes the WTRU receiving, a first positioning reference signal (PRS) resource with parameters characterizing the first PRS and determining the suitability of the first PRS resource for use by the WTRU. The method also includes measuring the phase difference of arrival (PDOA) for available frequency pairs and generating a range estimate based on the PDOA measurement. Further, the method includes the WTRU evaluating a reliability of the PDOA measurement and an accuracy of the range estimate and, on a condition that a sufficient accuracy has been achieved, reporting the range estimate.

公开(公告)号：US20240236941A1

公开(公告)日：2024-07-11

申请号：US18279948

申请日：2022-03-07

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Ali Esswie ,  Hussain Elkotby ,  Ravikumar Pragada

IPC: H04W68/02 ,  H04L1/1829 ,  H04W74/0833

CPC classification number: H04W68/02 ,  H04L1/1864 ,  H04W74/0833

Abstract: Procedures, methods, architectures, apparatuses, systems, devices, and computer program products are disclosed that may be implemented in a wireless transmit/receive unit (WTRU), such as where the WTRU is in an inactive and/or idle (e.g., RRC) state. In one representative method, the WTRU may receive a downlink (DL) small data transmission (SDT) indication with respect to a paging occasion. The WTRU may receive the indicated DL SDT payload which may be multiplexed with a paging record for the paging occasion and/or with one or more configured DL SDT PDSCH resources. Hybrid automatic repeat request (HARQ) feedback information for the DL SDT payload may be transmitted using configured PUCCH resources and/or may be multiplexed with a random access channel (RACH) procedure. The DL SDT payload may be received by the WTRU without transitioning to a connected (e.g., RRC) state.

公开(公告)号：US20240114456A1

公开(公告)日：2024-04-04

申请号：US18276089

申请日：2022-02-08

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Nagi Mahalingam ,  Hussain Elkotby ,  Ravikumar Pragada ,  Tanbir Haque ,  Vikas Gulati

IPC: H04W52/02 ,  H04B17/318

CPC classification number: H04W52/0235 ,  H04B17/328 ,  H04W52/0229 ,  H04W52/0245

Abstract: Methods and apparatus for targeted wake-up and frame enhancement for energy harvesting are disclosed. In one embodiment, a method performed by a station (STA) may compromise: receiving, during an energy detection state, a zero energy (ZE) frame from an access point (AP) that indicates a presence of an energy harvesting (EH) window; harvesting energy for a determined time duration during the EH window; and receiving, during an information decoding state, a data portion of the ZE frame based on a current stored energy of the STA being above a first threshold and a signal strength of the received ZE frame being above a second threshold.

公开(公告)号：US20230292242A1

公开(公告)日：2023-09-14

申请号：US18198044

申请日：2023-05-16

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Hussain Elkotby ,  Ravikumar V. Pragada ,  Tanbir Haque ,  Patrick Cabrol ,  Anantharaman Balasubramanian ,  Marian Rudolf ,  William E. Lawton

IPC: H04W52/02

CPC classification number: H04W52/0229

Abstract: A method for use in a Wireless Transmit/Receive Unit (WTRU). The method comprises: receiving, using an active receiver, system information comprising a first system information set, wherein the first system information set is currently valid for the WTRU; storing the system information; deactivating the active receiver and activating a passive receiver; determining whether a difference between a first parameter in the BSSI and a first parameter in the first system information set is greater than a threshold value, wherein on a condition that the difference is greater than the threshold value, reactivating the active receiver to receive a second system information set as a currently valid system information set for the WTRU.

公开(公告)号：US20250056535A1

公开(公告)日：2025-02-13

申请号：US18913561

申请日：2024-10-11

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Anantharaman BALASUBRAMANIAN ,  Hussain Elkotby ,  Marian Rudolf ,  Tanbir Haque ,  Patrick Cabrol ,  Ravikumar Pragada

IPC: H04W72/1268

Abstract: Method and apparatus for a WTRU to harvest energy from uplink signals of other WTRUs in a wireless network are disclosed. In an example, a method includes sending WTRU location information and determining a mapping between one or more geographical areas and their respective unique geographical radio network temporary identifier (RNTI) (geo-RNTI) and determining a current geo-RNTI of the WTRU based on the WTRU location information. The method may include decoding one or more configuration parameters of a first group of one or more other WTRU in the determined geo-RNTI, switching receive circuitry of the WTRU based on the one or more configuration parameters decoded; and harvesting radio frequency (RF) energy from uplink transmissions of the one or more other WTRUs based on switching of the receive circuitry.

公开(公告)号：US20240414037A1

公开(公告)日：2024-12-12

申请号：US18810292

申请日：2024-08-20

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Tanbir Haque ,  Hussain Elkotby ,  Patrick Cabrol ,  Ravikumar Pragada

IPC: H04L27/00 ,  H04B5/77 ,  H04B5/79 ,  H04B17/327

Abstract: A wireless transmit/receive unit, WTRU, can select a constellation from a set of constellations corresponding to a symbol configuration for indirect carrier modulation, ICM, based on at least one constellation performance efficacy indicator, each constellation performance efficacy indicator respectively corresponding to a constellation of the set of constellations, and use the selected constellation and symbol configuration to simultaneously harvest energy and transmit data.