公开(公告)号：US20210297921A1

公开(公告)日：2021-09-23

申请号：US16482887

申请日：2018-02-01

申请人： InterDigital Patent Holdings, Inc.

发明人： Ravikumar V. Pragada ,  Anantharaman Balasubramanian ,  Tanbir Haque

IPC分类号： H04W36/32 ,  H04W36/00 ,  H04W72/04

摘要： Systems, methods, and instrumentalities are disclosed for a wireless transmit/receive unit (WTRU) configured to receive a configuration defining a dedicated radio resource assignment for a travel path, wherein the dedicated radio resource assignment comprises dedicated resources assigned to the WTRU in a plurality of cells and specifies a time interval when the resources will be dedicated to the WTRU in each of the plurality of cells; determine a first time has been reached and utilize dedicated resources in a first cell based on reaching the first time; and determine a second time has been reached and utilize dedicated resources in a second cell based on reaching the second time.

公开(公告)号：US09014124B2

公开(公告)日：2015-04-21

申请号：US14021086

申请日：2013-09-09

申请人： InterDigital Patent Holdings, Inc.

发明人： Tanbir Haque ,  Leonid Kazakevich ,  Scott M. Newton

IPC分类号： H04L12/50 ,  H04W72/08 ,  H03M1/12 ,  H04B1/28

CPC分类号： H04W72/085 ,  H03M1/1215 ,  H04B1/28

摘要： A wireless transmit/receive unit (WTRU) is described. The WTRU includes a front-end unit (FEU), a signal processing unit (SPU), and a resource management unit (RMU). The FEU receives a radio frequency (RF) signal, generates time-interleaved samples, an includes: a first array of first time-interleaved samplers, a second array of second time-interleaved samplers, and a third array of third time-interleaved samplers. The SPU receives and combines the plurality of time-interleaved samples and generates a signal quality measurement and in-phase and quadrature-phase (IQ) complex samples. The RMU receives the signal quality measurement and allocates FEU resources in conjunction with a front-end unit controller (FEUC) based on the signal quality measurement. The FEUC generates control signals based on the received signal quality measurement from the RMU.

摘要翻译： 描述了无线发射/接收单元（WTRU）。 WTRU包括前端单元（FEU），信号处理单元（SPU）和资源管理单元（RMU）。 FEU接收射频（RF）信号，产生时间交织的样本，包括：第一时间交替取样器的第一阵列，第二时间交替取样器的第二阵列和第三时间交替取样器的第三阵列 。 SPU接收并组合多个时间交织样本，并产生信号质量测量和同相和正交相（IQ）复数样本。 RMU接收信号质量测量，并根据信号质量测量结合前端单元控制器（FEUC）分配FEU资源。 FEUC基于来自RMU的接收信号质量测量产生控制信号。

公开(公告)号：US20240284332A1

公开(公告)日：2024-08-22

申请号：US18591536

申请日：2024-02-29

申请人： InterDigital Patent Holdings, Inc.

发明人： Tanbir Haque ,  Ravikumar V. Pragada ,  Anantharaman Balasubramanian ,  Alpaslan Demir

IPC分类号： H04W52/02 ,  H04W76/28

CPC分类号： H04W52/0229 ,  H04W52/0216 ,  H04W52/0235 ,  H04W76/28

摘要： A wireless transmit/receive unit (WTRU) may include one or more antennas and a first transceiver operatively coupled to the antennas. The one or more antennas and the first transceiver may be configured to receive a first signal from a network using zero energy from the WTRU. The one or more antennas and the first transceiver may be further configured to extract energy from the first signal. The first transceiver may be further configured to examine a separation between energy threshold events to decode an energy signature of the first signal. The first transceiver may be further configured to activate a second transceiver operatively coupled to the one or more antennas if the decoded energy signature matches a stored energy signature, wherein the second transceiver is powered by the WTRU. The one or more antennas and the second transceiver may be configured to receive a second signal from the network.

公开(公告)号：US20240106532A1

公开(公告)日：2024-03-28

申请号：US18276293

申请日：2022-02-08

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

发明人： Nagi Mahalingam ,  Ravikumar Pragada ,  Tanbir Haque ,  Hussain Elkotby

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

CPC分类号： H04B7/22 ,  H04W52/0216 ,  H04W72/0473 ,  H04W72/543

摘要： 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

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC分类号： H04W74/08 ,  H04W56/00

CPC分类号： H04W74/0833 ,  H04W56/001

摘要： 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

申请人： InterDigital Patent Holdings, Inc.

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

IPC分类号： G01S13/00 ,  G01S7/00

CPC分类号： G01S13/003 ,  G01S7/003

摘要： 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：US20160345322A1

公开(公告)日：2016-11-24

申请号：US15231143

申请日：2016-08-08

申请人： InterDigital Patent Holdings, Inc.

发明人： Amith V. Chincholi ,  Alpaslan Demir ,  Tanbir Haque

IPC分类号： H04W72/04 ,  H04L12/26 ,  H04L5/14

CPC分类号： H04W72/0446 ,  H04B7/00 ,  H04J1/00 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0044 ,  H04L5/0064 ,  H04L5/0071 ,  H04L5/14 ,  H04L5/143 ,  H04L27/0006 ,  H04L43/16 ,  H04W72/0413 ,  H04W72/042

摘要： A method and apparatus are described that provides flexible spectrum usage by using a paired frequency division duplex (FDD) spectrum to enable dynamic access in television white space (TVWS), sub-leased spectrum or unlicensed spectrum, (e.g., industrial, scientific and medical (ISM) bands), in a femto cell environment or the like. Elastic FDD (E-FDD) enables femto cell operation in TVWS, sub-leased spectrum and/or unlicensed spectrum, either simultaneously with licensed spectrum or as an alternate channel to licensed spectrum. E-FDD enables dynamic asymmetric bandwidth allocation for uplink (UL) and downlink (DL) in FDD, and enables variable duplex spacing, (i.e., using FDD with minimum duplex spacing between DL and UL spectrum, or, using hybrid-FDD, (FDD in a time duplexed fashion), when a spectrum gap between the UL and DL spectrum is below a certain minimum threshold. Additionally, the signaling enhancements to implement E-FDD are also provided.

摘要翻译： 描述了一种方法和装置，其通过使用成对的频分双工（FDD）频谱来实现灵活的频谱使用，以实现电视空白（TVWS），次租用频谱或非许可频谱（例如工业，科学和医学） （ISM）频带），在毫微微小区环境等中。 弹性FDD（E-FDD）使得能够在TVWS，子租用频谱和/或非许可频谱中的毫微微小区操作，或者与许可频谱同时或作为许可频谱的备用信道。 E-FDD实现了FDD中的上行链路（UL）和下行链路（DL）的动态非对称带宽分配，并且实现了可变双工间隔（即，使用DL和UL频谱之间具有最小双工间隔的FDD，或者使用混合FDD， FDD以时间双工方式），当UL和DL频谱之间的频谱间隔低于某个最小阈值时，还提供了实现E-FDD的信令增强。

公开(公告)号：US20240259159A1

公开(公告)日：2024-08-01

申请号：US18560778

申请日：2022-05-19

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

发明人： Alpaslan Demir ,  Sanjay Goyal ,  Patrick Cabrol ,  Muhammad Fazili ,  Tanbir Haque ,  Ravikumar Pragada

IPC分类号： H04L5/00

CPC分类号： H04L5/0051 ,  H04L5/0055

摘要： A method and WTRU to support an in-channel narrowband companion air interface (NB-CAI) assisted wideband (WB) frequency error correction procedure is disclosed. The method may comprise a WTRU sending, via the NB-CAI, a frequency convergence reference signal (FCRS) scheduling request to a network node and receiving, via the NB-CAI, a FCRS scheduling response from the network node. The method may comprise receiving, via a wideband air interface (WB-AI), periodic FCRSs from the network node based on the received FCRS scheduling response and sending, via the NB-CAI, a request to the network node to change a rate of FCRS transmissions. The FCRS scheduling request may comprise range information. The request to change a rate of FCRS transmissions may be based on a convergence indication. The request to change a rate of FCRS transmissions may comprise a configuration identification of a selected FCRS configuration from a set of FCRS configurations.

公开(公告)号：US11956725B2

公开(公告)日：2024-04-09

申请号：US17962863

申请日：2022-10-10

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

发明人： Tanbir Haque ,  Ravikumar V. Pragada ,  Anantharaman Balasubramanian ,  Alpaslan Demir

IPC分类号： H04W52/02 ,  H04W76/28

CPC分类号： H04W52/0229 ,  H04W52/0216 ,  H04W52/0235 ,  H04W76/28

摘要： A wireless transmit/receive unit (WTRU) may include one or more antennas and a first transceiver operatively coupled to the antennas. The one or more antennas and the first transceiver may be configured to receive a first signal from a network using zero energy from the WTRU. The one or more antennas and the first transceiver may be further configured to extract energy from the first signal. The first transceiver may be further configured to examine a separation between energy threshold events to decode an energy signature of the first signal. The first transceiver may be further configured to activate a second transceiver operatively coupled to the one or more antennas if the decoded energy signature matches a stored energy signature, wherein the second transceiver is powered by the WTRU. The one or more antennas and the second transceiver may be configured to receive a second signal from the network.

公开(公告)号：US20240114456A1

公开(公告)日：2024-04-04

申请号：US18276089

申请日：2022-02-08

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC分类号： H04W52/02 ,  H04B17/318

CPC分类号： H04W52/0235 ,  H04B17/328 ,  H04W52/0229 ,  H04W52/0245

摘要： 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.