公开(公告)号：US20240381479A1

公开(公告)日：2024-11-14

申请号：US18783247

申请日：2024-07-24

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04W76/27 ,  H04L1/1607 ,  H04L5/00 ,  H04W72/23 ,  H04W76/19 ,  H04W80/02

Abstract: Switching between Orthogonal Multiple Access (OMA) and Non-Orthogonal Multiple Access (NOMA) modes of a user equipment (UE) can be determined and indicated by a gNB to a UE at an RRC connected state using one or more of the following schemes: at an RRC (Radio Resource Control) layer with an RRC configuration message, at a MAC (Medium Access Control) layer with MAC CE (MAC control element) signaling, at a PHY (Physical) layer with DCI (Downlink Control Information) signaling, jointly with RRC configuration and DCI signaling, and/or jointly with RRC configuration and MAC CE signaling. The OMA or NOMA mode that the UE operates after the transition may be requested by the UE, indicated by the gNB, and/or may be based on one or more rules for OMA-NOMA switching.

公开(公告)号：US20240373453A1

公开(公告)日：2024-11-07

申请号：US18756661

申请日：2024-06-27

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：US20240357390A1

公开(公告)日：2024-10-24

申请号：US18744162

申请日：2024-06-14

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04W24/08 ,  H04L5/00 ,  H04L41/0677 ,  H04W56/00 ,  H04W72/23

CPC classification number: H04W24/08 ,  H04L5/0048 ,  H04L41/0677 ,  H04W56/001 ,  H04W72/23

Abstract: Radio resource management measurements for new radio unlicensed are performed that are based on a measurement model where a missed received signal transmission opportunity indicator is provided to higher layers to adapt the measurement functions performed by the radio resource control when a missed received signal transmission opportunity is detected. Radio link monitoring for new radio unlicensed is performed based on in-sync or out-of-sync indications that are based on the estimated radio link quality in combination with missed radio link monitoring reference signal transmission opportunities.

公开(公告)号：US12069679B2

公开(公告)日：2024-08-20

申请号：US17429689

申请日：2020-02-14

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04W72/23 ,  H04W72/1268 ,  H04W72/20 ,  H04W72/566 ,  H04W80/02

CPC classification number: H04W72/23 ,  H04W72/1268 ,  H04W72/20 ,  H04W72/569 ,  H04W80/02

Abstract: Methods and apparatuses are described herein for Intra-UE Prioritization in uplink (UL) transmissions. In an example, an apparatus may receive first information indicating a first uplink grant associated with a first transmission and second information indicating a second uplink grant associated with a second transmission. The apparatus may determine, based on the first information and the second information, that the first transmission and the second transmission overlap at least partially in time. The apparatus may determine a first priority associated with the first transmission and a second priority associated with the second transmission. The apparatus may then cause, based at least in part on the first priority and the second priority, at least one of: prioritization of one transmission over another transmission, or preemption of the first transmission by the second transmission.

公开(公告)号：US12052704B2

公开(公告)日：2024-07-30

申请号：US17051297

申请日：2019-05-09

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04W72/12 ,  H04L5/00 ,  H04L41/0806 ,  H04W56/00 ,  H04W72/30 ,  H04W74/08

CPC classification number: H04W72/12 ,  H04L5/0048 ,  H04L41/0806 ,  H04W56/001 ,  H04W72/30 ,  H04W74/08

Abstract: The present application is directed to an apparatus including a non-transitory memory including instructions stored thereon for monitoring synchronous signals and physical broadcast channels (SSBs) from a network node. The apparatus also includes a processor, operably coupled to the non-transitory memory, configured to execute a set of instructions. The instructions include configuring the apparatus for a STTC (SSB Transmission Timing Configuration). The STTC is a time interval with plural locations accommodating transmission of the SSBs. The instructions also include monitoring the STTC for the SSBs. The instructions further include determining a first one of the SSBs in a first slot of a subframe in a scheduled SSB transmission in the STTC has been transmitted at a first scheduled location, where the transmission of the first one of the SSBs is based upon confirmation of a successful Listen Before Talk (LBT) available channel prior to the scheduled SSB transmission in the STTC.

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：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.