公开(公告)号：US11997696B2

公开(公告)日：2024-05-28

申请号：US18108528

申请日：2023-02-10

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Yugeswar Deenoo ,  Tao Deng ,  Kyle Jung-Lin Pan ,  Moon-il Lee ,  Ravikumar V. Pragada ,  Janet A. Stern-Berkowitz ,  Mihaela C. Beluri

IPC: H04W72/044 ,  H04L5/00 ,  H04W72/23

CPC classification number: H04W72/23 ,  H04L5/0048 ,  H04L5/0053 ,  H04W72/046 ,  H04L5/0007 ,  H04L5/0069

Abstract: Transmit and/or receive beamforming may be applied to the control channel transmission/reception, e.g., in mmW access link system design. Techniques to identify candidate control channel beams and/or their location in the subframe structure may provide for efficient WTRU operation. A framework for beam formed control channel design may support varying capabilities of mBs and/or WTRUs, and/or may support time and/or spatial domain multiplexing of control channel beams. For a multi-beam system, modifications to reference signal design may discover, identify, measure, and/or decode a control channel beam. Techniques may mitigate inter-beam interference. WTRU monitoring may consider beam search space, perhaps in addition to time and/or frequency search space. Enhancements to downlink control channel may support scheduling narrow data beams. Scheduling techniques may achieve high resource utilization, e.g., perhaps when large bandwidths are available and/or WTRUs may be spatially distributed.

公开(公告)号：US20240147324A1

公开(公告)日：2024-05-02

申请号：US18538529

申请日：2023-12-13

Applicant: InterDigital Patent Holdings, Inc.

Inventor： J. Patrick Tooher ,  Ghyslain Pelletier ,  Benoit Pelletier ,  Paul Marinier ,  Yugeswar Deenoo ,  Martino M. Freda

IPC: H04W36/00 ,  H04W24/10 ,  H04W48/16 ,  H04W74/0833 ,  H04W84/04

CPC classification number: H04W36/0085 ,  H04W24/10 ,  H04W36/0055 ,  H04W48/16 ,  H04W74/0833 ,  H04W84/045

Abstract: Methods to perform, maintain and report measurements on a transmission-reception point (TRP) using limited reference signal transmission are described herein. The mobility measurement reports may utilize physical channels. Methods to obtain measurements on neighbor TRPs using limited RS transmissions are also described herein. Random-Access procedures to enable the addition of a neighbor TRP or handover without requiring higher layer signaling (and possibly without an interface between source and target TRP) are also described herein. New triggers to perform RA in order to decrease handover latency are also described herein. Wireless Transmit/Receive Unit (WTRU) behavior upon receiving RAR from multiple possible TRPs are also described herein. For example, a WTRU may store RAR information and use it later in an interrupted RA procedure.

公开(公告)号：US20240056916A1

公开(公告)日：2024-02-15

申请号：US18494385

申请日：2023-10-25

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Yugeswar Deenoo ,  Dylan Duc Watts ,  Diana Pani ,  Paul Marinier ,  Mouna Hajir ,  Ghyslain Pelletier

IPC: H04W36/00 ,  H04B7/185 ,  H04W74/08

CPC classification number: H04W36/0077 ,  H04B7/18513 ,  H04W74/0833

Abstract: A method and apparatus for receiving a broadcast configuration indicating when a change in a RAN function termination occurs is provided, for example, by a timer value. The broadcast configuration may be received from a satellite, blimp or other moving transmitter. A dedicated configuration may also be received from the serving cell. The dedicated configuration may include a preamble, a transient configuration and an indication of a layer 2 behavior. If a WTRU detects a change in RAN function termination, the WTRU may suspend any uplink data transmissions, apply the transient configuration and transmit the preamble to a target cell. The WTRU may synchronize with the target cell and apply the layer 2 behavior.

公开(公告)号：US11877337B2

公开(公告)日：2024-01-16

申请号：US17362423

申请日：2021-06-29

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Yugeswar Deenoo ,  Ping Hsuan Tan ,  Ghyslain Pelletier

IPC: H04W76/18 ,  H04W16/28 ,  H04W76/19 ,  H04W76/15 ,  H04L1/00 ,  H04W24/08 ,  H04W68/00 ,  H04W72/044 ,  H04W80/02

CPC classification number: H04W76/18 ,  H04L1/0061 ,  H04W16/28 ,  H04W24/08 ,  H04W68/005 ,  H04W72/046 ,  H04W76/15 ,  H04W76/19 ,  H04W80/02 ,  Y02D30/70

Abstract: Systems, methods, and instrumentalities are disclosed for connectivity supervision and recovery. A WTRU may supervise its capability to transmit and receive data, including in the absence of a control channel (e.g. grant-less transmission). A supervision framework may permit a WTRU to supervise, for example, quality of a feedback channel, quality of reciprocal resources and/or transmission attempts. A supervision process may be a function of a control channel structure or WTRU state. A supervision process may be associated with a quality of service. A supervision process may be based on WTRU transmission for energy/resource efficient operation. Multiple Recovery procedures may be defined. A recovery procedure may be a function of a supervision process. A recovery procedure may be optimized for low latency services. Recovery procedures may involve dedicated resources for recovery, transition to light connection, grant-less resource, etc. User plane recovery may include reuse of layer 2 context, data replication to companion MAC instances, etc. Control plane recovery may use RAN paging, WTRU triggered multi-connectivity, etc. A recovery procedure for a supervision process associated with a beam process may include WTRU triggering beam training/beam refinement, etc.

公开(公告)号：US11848811B2

公开(公告)日：2023-12-19

申请号：US17746680

申请日：2022-05-17

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Tao Deng ,  Steven Ferrante ,  Ravikumar V. Pragada ,  Yugeswar Deenoo ,  Daniel R. Cohen ,  Janet A. Stern-Berkowitz ,  Moon-il Lee ,  Mihaela C. Beluri

IPC: H04L27/26 ,  H04W48/02 ,  H04W48/06 ,  H04B7/06 ,  H04B7/08 ,  H04W56/00 ,  H04W48/12 ,  H04W48/16

CPC classification number: H04L27/2673 ,  H04B7/0695 ,  H04B7/088 ,  H04W48/12 ,  H04W48/16 ,  H04W56/001 ,  H04B7/0617 ,  H04L27/2666

Abstract: A method performed by a base station may include transmitting a configuration message including at least information indicating a subset of a plurality of transmit beams to be used for transmitting a set of synchronization signals. The set of synchronization signals including a primary synchronization signal and a secondary synchronization signal may be transmitted. A random access channel (RACH) transmission may be received using a receive beam associated with one of the subset of the plurality of transmit beams used by the base station to transmit the set of synchronization signals. The transmitted set of synchronization signals transmitted may have a signal quality above a signal quality threshold. A reference signal may be transmitted along with a physical broadcast channel (PBCH) transmission. The reference signal may have a sequence derived from a beam index associated with the one of the subset of the plurality of transmit beams.

公开(公告)号：US20200068590A1

公开(公告)日：2020-02-27

申请号：US16670397

申请日：2019-10-31

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Onur Sahin ,  Arnab Roy ,  Monisha Ghosh ,  Yugeswar Deenoo ,  Ravikumar V. Pragada ,  Joseph S. Levy

IPC: H04W72/12 ,  H04W48/16 ,  H04W74/04

Abstract: Methods and apparatus may perform dual-band or multi-band mesh operations. A dual-band mesh station (MSTA) capable of operating in an O-band and a D-band may seek to join a mesh network, and may receive O-band beacons from at least one MSTA in the mesh network, where the O-band beacons may include D-band mesh information. The joining MSTA may transmit D-band beacons in a time-period specified by the O-band beacon, and on a condition that a beacon response message is received, may further transmit D-band association information via O-band management frames to join mesh network on the D-band. The joining MSTA may perform contention-free scheduled access in the D-band while sharing D-band transmission information in the O-band to enable concurrent communication in the D-band by neighboring multi-band MSTAs.

公开(公告)号：US12279326B2

公开(公告)日：2025-04-15

申请号：US18476874

申请日：2023-09-28

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Yugeswar Deenoo ,  Tao Deng ,  Martino M. Freda ,  Ghyslain Pelletier ,  Faris Alfarhan

IPC: H04B7/08 ,  H04W72/21 ,  H04W72/23 ,  H04W74/0833 ,  H04W76/16 ,  H04W76/19 ,  H04W88/02

Abstract: A system and methods for beam failure recovery and management for multi-carrier communications with beamforming are disclosed herein. A wireless transmit/receive unit (WTRU) may monitor for and detect a beam failure of a beam associated with a secondary cell (Scell). The WTRU may select an Scell candidate beam. The WTRU may transmit using a selected uplink (UL) resource in a primary cell (SpCell) a medium access control (MAC) control element (CE) including an indication of Scell beam failure and identifying the selected candidate beam. The WTRU may receive an Scell beam failure indication response on the SpCell indicating an SCell index and a downlink (DL) quasi co-location (QCL) reference associated with the Scell. The WTRU may verify that the DL QCL reference matches with the candidate beam. The WTRU may perform random access on the SCell using the selected QCL reference and the selected candidate beam.

公开(公告)号：US20250016708A1

公开(公告)日：2025-01-09

申请号：US18894909

申请日：2024-09-24

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Mouna Hajir ,  Dylan James Watts ,  Yugeswar Deenoo ,  Ghyslain Pelletier

IPC: H04W56/00 ,  H04B7/185 ,  H04W24/10 ,  H04W84/06

Abstract: A wireless transmit/receive unit (WTRU) may communicate in a non-terrestrial network (NTN) comprising a plurality of satellites. The WTRU may be preconfigured with a plurality of measurement configurations and a corresponding plurality of activation/deactivation criteria associated with the plurality of satellites. The activation/deactivation criteria includes at least activation timing information. The WTRU may activate and deactivate each of the plurality of measurement configurations over time in accordance with the activation/deactivation criteria. The WTRU may perform measurements on cell beams for satellites with active measurement configurations and report results based on the measurements to NTN.

公开(公告)号：US20240429995A1

公开(公告)日：2024-12-26

申请号：US18830107

申请日：2024-09-10

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Moon-il Lee ,  Yugeswar Deenoo ,  Tao Deng ,  Janet Stern-Berkowitz ,  Ravikumar Pragada ,  Mihaela Beluri

IPC: H04B7/08 ,  H04B7/0408 ,  H04B7/0417 ,  H04B7/06 ,  H04L5/00

Abstract: A wireless transmit/receive unit (WTRU) is configured to perform a method that comprises receiving a downlink control information (DCI) that schedules a first physical downlink shared channel (PDSCH) transmission and a second PDSCH transmission. The DCI comprises an indication of a beam identifier. The DCI indicates a time domain resource information for the first PDSCH transmission and the second PDSCH transmission. The method comprises receiving the first PDSCH transmission using a first beam. The first beam is a beam used for receiving a control channel transmission. The method comprises receiving the second PDSCH transmission using a second beam. The second beam is a beam of the beam identifier indicated in the DCI.

公开(公告)号：US20240422679A1

公开(公告)日：2024-12-19

申请号：US18817562

申请日：2024-08-28

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Martino Freda ,  Ghyslain Pelletier ,  Tao Deng ,  Paul Marinier ,  Yugeswar Deenoo ,  Aata El Hamss

IPC: H04W52/02

Abstract: Methods and apparatus for power saving in a wireless network are disclosed. A Wireless Transmit/Receive Unit (WTRU) may comprise a transmitter, a receiver, and a processor. The processor may determine a processing state pertaining to behavior of the WTRU and determine a minimum amount of resources to be processed for one or more sets of physical resources based on the determined processing state. Each respective set of physical resources may comprise resources in time, and any of frequency or space. For each respective set of physical resources, the time may comprise a frame structure associated with a numerology applicable to the respective set of physical resources, the frequency may comprise any of a frequency location, a bandwidth, or the numerology, and the space may comprise one or more beams. The processor may process the determined minimum amount of resources of the one of more sets of physical resources.