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    Methods and apparatus for uplink energy harvesting and signaling
    1.
    发明授权
    Methods and apparatus for uplink energy harvesting and signaling 有权

    公开(公告)号：US12219554B2

    公开(公告)日：2025-02-04

    申请号：US17610396

    申请日：2020-05-16

    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 a message indicating resources and capability of energy harvesting (EH) from sets of resources of the plurality of resources; receiving one or more SRS super-sets, each SRS super-set being associated with a group of other WTRUs and at least one set of resources of the plurality of resources; determining a mapping between a receive beam and an SRS super-set; receiving uplink transmission patterns each being associated with an SRS super-set; selecting a receive beam from a set of receive beams based on the received uplink transmission patterns; and harvesting RF energy from uplink transmissions of one or more groups of other WTRUs using at least the selected receive beam and the received uplink transmission patterns.

    Active interference management
    5.
    发明授权
    Active interference management 有权

    公开(公告)号：US11178651B2

    公开(公告)日：2021-11-16

    申请号：US16495950

    申请日：2018-03-23

    Applicant: InterDigital Patent Holdings, Inc.

    Inventor： Anantharaman Balasubramanian ,  Ravikumar V. Pragada

    IPC: H04W72/04 ,  H04L5/00 ,  H04W72/08 ,  G08G5/00

    Abstract: Systems, methods, and instrumentalities are disclosed for active interference management. Active interference management may be provided for designated data regions and/or superzones. UAV-specific or other designated data regions (e.g., with data zones) may enable dynamic inter-cell interference management and high reliability command & control for UAVs in interference prone in environments. Data zone/region specific control channel search space may support inter-cell interference cancellation. Aggregation N levels (e.g., during EPDCCH encoding) may be dependent on an interference level of a zone. Data zone specific reference signals (DS-RS) may enable UAVs connected to neighboring cells to estimate an interference channel per zone. Interference management may be provided during semi-persistent scheduling (SPS) transmissions. Reliability of Physical Downlink Control Channel (PDCCH) may be enhanced (EPDCCH), e.g., with interference assistance signaling. Uplink interference management may operate with dedicated data region/zones. A downlink control information (DCI) format may be provided for UAVs.

    CARRIER AGGREGATION FOR WIRELESS TRANSMIT/RECEIVE UNIT
    6.
    发明申请
    CARRIER AGGREGATION FOR WIRELESS TRANSMIT/RECEIVE UNIT 有权

    公开(公告)号：US20210314112A1

    公开(公告)日：2021-10-07

    申请号：US17266298

    申请日：2019-08-07

    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

    Inventor： Anantharaman Balasubramanian ,  Nagi Mahalingam ,  Ravikumar V. Pragada ,  Benoit Pelletier

    IPC: H04L5/00

    Abstract: Wireless transmit/receive units (WTRUs) may include unmanned aerial vehicles (UAVs). The WTRUs/UAVs may cooperate to exchange channel busy ratio (CBR) and/or CBR statistics of one or more (e.g., all) the carriers that the WTRUs/UAVs monitors with each other for carrier selection/carrier reselection. A network may provide one or more inputs on carrier selection. For example, a network may provide one or more inputs on carrier selection based on the congestion that the network infers (e.g., through the CBR measurements reported by the WTRUs/UAVs and/or through its own measurements). MAC/PHY layers may be configured to perform transmit adaptation during PDCP packet duplication. For example, the carrier aggregation capability of receivers may be considered to adapt the number of transmissions per carrier. Based on the carrier aggregation capability of the receivers, the number of transmissions at one or more (e.g., every) carriers may be optimized jointly across carriers.

    METHODS AND APPARATUS FOR WAVEFORM DESIGN AND SIGNALING FOR ENERGY HARVESTING
    8.
    发明申请
    METHODS AND APPARATUS FOR WAVEFORM DESIGN AND SIGNALING FOR ENERGY HARVESTING 有权

    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.

    NETWORK INITIATED ON-DEMAND ZERO-ENERGY PAGING METHOD AND APPARATUS
    9.
    发明公开
    NETWORK INITIATED ON-DEMAND ZERO-ENERGY PAGING METHOD AND APPARATUS 审中-公开

    公开(公告)号：US20240284332A1

    公开(公告)日：2024-08-22

    申请号：US18591536

    申请日：2024-02-29

    Applicant: InterDigital Patent Holdings, Inc.

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

    IPC: H04W52/02 ,  H04W76/28

    CPC classification number: H04W52/0229 ,  H04W52/0216 ,  H04W52/0235 ,  H04W76/28

    Abstract: 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.

    Concurrent multi-level broadcast and unicast for small unmanned aerial vehicles and V2X systems
    10.
    发明授权
    Concurrent multi-level broadcast and unicast for small unmanned aerial vehicles and V2X systems 有权

    公开(公告)号：US10785607B2

    公开(公告)日：2020-09-22

    申请号：US16300307

    申请日：2017-05-12

    Applicant: InterDigital Patent Holdings, Inc.

    Inventor： Anantharaman Balasubramanian ,  Ravikumar V. Pragada

    IPC: H04W4/06 ,  H04W4/08 ,  H04B7/185 ,  H04W72/00 ,  H04W4/40 ,  H04W72/12

    Abstract: Systems, methods, and instrumentalities are disclosed for processing a multi-level transmission sent on a common set of resources using superposition coding, comprising determining a first group radio network temporary identifier (GRNTI), wherein the GRNTI is associated with a broadcast transmission to a plurality of wireless transmit/receive units (WTRUs), determining a second GRNTI, wherein the second GRNTI is associated with a transmission to a subset of the plurality of WTRUs that received the first GRNTI, receiving the multi-level transmission, wherein the multi-level transmission comprises a first level message and a second level message, decoding the first level message from the multi-level transmission using the first GRNTI and preconfigured control information, and decoding the second level message from the multi-level transmission using the second GRNTI.

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