公开(公告)号：US11888775B2

公开(公告)日：2024-01-30

申请号：US17847644

申请日：2022-06-23

Applicant: InterDigital Patent Holdings, Inc

Inventor： Yifan Li ,  Lakshmi R. Iyer ,  Joseph M. Murray ,  Allan Y. Tsai ,  Guodong Zhang ,  Qing Li

IPC: H04L5/00 ,  H04L27/26 ,  H04W16/14 ,  H04W72/0446 ,  H04W72/23

CPC classification number: H04L5/0048 ,  H04L5/0023 ,  H04L27/2613 ,  H04W16/14 ,  H04W72/0446 ,  H04W72/23 ,  H04L5/0051

Abstract: In NR, a slot structure of a UE may be dynamic due the number of symbols of PDCCH and whether the slot has UL data, among other considerations. Additionally, to support multi-TRP/multi-panel/multi-BWP operation, a UE may be configured with multiple TRSs, and when a UE needs to receive multiple TRSs in the same slot, efficient signaling of the TRSs is important because of the high overhead involved. During a transmission, a UE may need to do beam switching when there is a beam failure, but existing systems do not have mechanisms for the UE to synchronize time and frequency with a new beam. Further, when a UE switches to a new beam, the effect on scheduled TRS transmission for old beams is unclear. Fine frequency and time tracking may also be required during an initial access procedure. Existing NR systems do not address how a UE may perform time and frequency tracking during an initial access procedure. Additionally, URLLC data may need to be transmitted to a UE immediately in an NR system. Existing NR systems do not address sending a TRS to a UE with URLLC data. Embodiments described herein address these and other issues.

公开(公告)号：US20230292331A1

公开(公告)日：2023-09-14

申请号：US18193833

申请日：2023-03-31

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Allan Y. Tsai ,  Lakshmi R. Iyer ,  Guodong Zhang ,  Qian Zhang ,  Pascal M. Adjakple ,  Qing Li ,  Joseph M. Murray ,  Tianyi Xi ,  Wei Chen ,  Ahmed ElSamadouny ,  Salman Khan ,  Yifan Li

IPC: H04W72/23 ,  H04L5/00 ,  H04B7/06 ,  H04W68/02 ,  H04W72/0446 ,  H04W72/044

CPC classification number: H04W72/23 ,  H04B7/0617 ,  H04B7/0639 ,  H04L5/0048 ,  H04L5/0053 ,  H04W68/02 ,  H04W72/0446 ,  H04W72/046 ,  H04B7/0689 ,  H04W88/02

Abstract: New radio download numerology allocation information may be obtained through master information block data, system information block data, radio resource control signals, or signals or a physical downlink numerology indication channel, and used along with a reference signal detected in a search space to obtain resource element positions in an antenna port reference signal in a resource block that belongs to a particular band slice according to a reference signal allocation scheme for a band slice numerology. A physical download control may then be decoded based upon one or more resource elements of the reference signal, allowing the connection of, e.g., an enhanced mobile broadband, massive machine type communication, or ultra-reliable/low-latency application to a communications network thereby. Alternatively, multiple physical downlink control channels may be blindly demodulated at each of a number calculated reference signal locations, and one channel selected based on passing a cyclic redundancy check.

公开(公告)号：US20250126647A1

公开(公告)日：2025-04-17

申请号：US18999669

申请日：2024-12-23

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Mohamed Awadin ,  Lakshmi R. Iyer ,  Qing Li ,  Joseph M. Murray ,  Yifan Li ,  Pascal M. Adjakple ,  Allan Y. Tsai ,  Guodong Zhang

IPC: H04W74/0816 ,  H04W16/28 ,  H04W72/044 ,  H04W72/1263 ,  H04W74/00

Abstract: User equipment (UE) in beam-centric telecommunications cell may use a variety of listen-before-talk (LBT) procedures and hybrid channel access procedures for uplink transmissions are on different beams and configured or scheduled in contiguous or non-contiguous mode. UE behavior may be based on the LBT result across the different beams. A gNB may indicate LBT occasions to UEs. The UL numerology may be adjusted without LBT while near the end of a gNB's maximum channel occupancy time (MCOT). A gNB may use LBT procedures, before down link transmissions, using data, control, and reference signals, etc., across different beams.

公开(公告)号：US12279149B2

公开(公告)日：2025-04-15

申请号：US18430298

申请日：2024-02-01

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Pascal M. Adjakple ,  Qing Li ,  Joseph M. Murray ,  Lakshmi R. Iyer ,  Mohamed Awadin ,  Yifan Li ,  Allan Y. Tsai ,  Guodong Zhang

IPC: H04W28/02 ,  H04L27/26 ,  H04W4/40 ,  H04W80/02 ,  H04W92/18

Abstract: Methods and apparatuses are described herein for prioritizing sidelink communication transmissions. In accordance with one example embodiment, a WTRU may include a processor, configured to receive vehicle-to-x communication (V2X) configuration parameters from a V2X network node. The V2X communication parameters may be associate with sidelink communications for a V2X service. The WTRU may send a user equipment (UE) information message to a gNB. The UE information message may include quality of service (QoS) information associated with the V2X service. The WTRU may further receive a radio resource control (RRC) configuration message from the gNB. The RRC configuration message may include an indication of a logical channel to be used for communication sidelink data associated with the V2X service, and one or more logical channel configuration parameters for the logical channel to be used for communication of the sidelink data associated with the V2X service. The WTRU may send at least one sidelink transmission comprising the sidelink data associated with the V2X service.

公开(公告)号：US20250119937A1

公开(公告)日：2025-04-10

申请号：US18979204

申请日：2024-12-12

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Qing Li ,  Lakshmi R. Iyer ,  Allan Y. Tsai ,  Guodong Zhang ,  Tianyi Xu ,  Wei Chen ,  Pascal M. Adjakple ,  Joseph M. Murray

IPC: H04W72/566 ,  H04B7/06 ,  H04L1/1812 ,  H04L1/1829 ,  H04L5/00 ,  H04L27/26

Abstract: Methods, systems, and apparatuses are described herein for beamforming based initial access, beam management, and beam based mobility designs for NR systems. Issues are identified and addressed related to one or more of initial access, control channel design, eMBB and URLLC mixing, and beam training. The methods, systems and apparatus may include a receiving scheduling information and a preemption indication via a DCI. In addition, there may be a detecting and decoding of the preemption indication, a determining of a HARQ feedback associated, and a sending, to a network node, of the HARQ feedback.

公开(公告)号：US12273917B2

公开(公告)日：2025-04-08

申请号：US18189406

申请日：2023-03-24

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Lakshmi R. Iyer ,  Qing Li ,  Joseph M. Murray ,  Mohamed Awadin ,  Guodong Zhang ,  Pascal M. Adjakple ,  Allan Y. Tsai

IPC: H04W74/0808 ,  H04W72/1268 ,  H04W72/23 ,  H04W74/00

Abstract: A Channel Access Indicator (CAI) may be employed in New Radio Unlicensed (NR-U) to indicate channel occupation by a node to nodes outside its cell, indicate channel occupation by a node to nodes within its cell to aid spectral reuse, and to trigger a handshake between nodes within a cell to ensure that receiver has clear channel to transmit and receive.

公开(公告)号：US12245262B2

公开(公告)日：2025-03-04

申请号：US18511322

申请日：2023-11-16

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Lakshmi R. Iyer ,  Allan Y. Tsai ,  Tianyi Xu ,  Guodong Zhang ,  Pascal M. Adjakple ,  Ahmed Elsamadouny ,  Salman Khan ,  Yifan Li

IPC: H04W72/541 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/06 ,  H04L5/00 ,  H04L5/14 ,  H04W72/0446 ,  H04W72/21 ,  H04W72/23

Abstract: The present application at least describes a wireless transmit/receive unit (WTRU) including a processor and non-transitory memory including stored instructions which are executed by the processor. The instructions include receiving, from a base station, configuration information indicating a set of channel state information interference channel measurement (CSI-ICM) resources for the WTRU. The configuration information indicates a period and an offset for the set of CSI-ICM resources. The instructions also include receiving, from the base station, downlink control information (DCI) indicating a subset of the set of CSI-ICM resources. The instructions further include measuring the subset of CSI-ICM resources. The instructions even further include transmitting feedback to the base station based on the subset of CSI-ICM resources. The instructions yet even further include receiving a MAC control element (CE) indicating an activation of a CSI report from the base station.

公开(公告)号：US12231198B2

公开(公告)日：2025-02-18

申请号：US17080134

申请日：2020-10-26

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Guodong Zhang ,  Allan Y. Tsai ,  Qing Li ,  Pascal M. Adjakple ,  Lakshmi R. Iyer ,  Wei Chen ,  Joseph M. Murray

IPC: H04B7/02 ,  H04B7/06 ,  H04W16/28

Abstract: The present application is at least directed to an apparatus on a network including a non-transitory memory including instructions stored thereon for beamforming training. The apparatus also includes a processor, operably coupled to the non-transitory memory, capable of executing the instructions of monitoring a first beamforming training reference signal (BT-RS) and physical broadcast channel (PBCH) of a network node to acquire symbol timing and subframe timing, where a common part of the PBCH includes a first beam ID. The processor is also configured to execute the instructions of transmitting, to the network node, a beam ID feedback with a unique training sequence generated based on the first beam ID to establish a radio resource control (RRC) connection The processor is further configured to execute the instructions of receiving, from the network node, a second BT-RS to perform beamforming training. The processor even further is configured to execute the instructions of receiving, from the network node, downlink control information (DCI) carrying one or more second beam IDs. The one or more second beam IDs are associated with one or more beams configured via RRC signaling. Resources of the second BT-RS are configured by a RRC message via the RRC connection.

公开(公告)号：US12207303B2

公开(公告)日：2025-01-21

申请号：US17050047

申请日：2019-04-26

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Mohamed Awadin ,  Lakshmi R. Iyer ,  Qing Li ,  Joseph M. Murray ,  Yifan Li ,  Pascal M. Adjakple ,  Allan Y. Tsai ,  Guodong Zhang

IPC: H04W74/0816 ,  H04W16/28 ,  H04W72/044 ,  H04W72/1263 ,  H04W74/00

Abstract: User equipment (UE) in beam-centric telecommunications cell may use a variety of listen-before-talk (LBT) procedures and hybrid channel access procedures for uplink transmissions are on different beams and configured or scheduled in contiguous or non-contiguous mode. UE behavior may be based on the LBT result across the different beams. A gNB may indicate LBT occasions to UEs. The UL numerology may be adjusted without LBT while near the end of a gNB's maximum channel occupancy time (MCOT). A gNB may use LBT procedures, before down link transmissions, using data, control, and reference signals, etc., across different beams.

公开(公告)号：US12167329B2

公开(公告)日：2024-12-10

申请号：US17279198

申请日：2019-07-17

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Lakshmi R. Iyer ,  Pascal M. Adjakple ,  Qing Li ,  Guodong Zhang ,  Joseph M. Murray ,  Yifan Li ,  Allan Y. Tsai ,  Mohamed Awadin ,  Patrick Svedman

IPC: H04W52/02 ,  H04L5/00 ,  H04W72/044 ,  H04W72/23

Abstract: Methods, systems, and devices may assist in power saving in new radio. For example, enable power savings during the connected mode discontinuous reception cycle of the RRC_CONNECTED state of a user equipment.