公开(公告)号：US20220416972A1

公开(公告)日：2022-12-29

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 ,  H04W72/04

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：US20250151149A1

公开(公告)日：2025-05-08

申请号：US18949789

申请日：2024-11-15

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Allan Y. Tsai ,  Patrick Svedman ,  Qing Li ,  Guodong Zhang ,  Lakshmi R. Iyer ,  Yifan Li ,  Mohamed Awadin

IPC: H04W76/19 ,  H04L5/00 ,  H04W24/08

Abstract: Methods, systems, and devices may support BFD with multi-TRP transmission or support BFR with multi-TRP transmission, among other things. For BFD with multi-TRP transmission, there may be the explicit configuration or implicit configuration. With regard to BFR with multi-TRP transmission there may: BFR using contention-free PRACH, BFR using PUCCH, BFR using contention-free 2-step RACH, or BFR using PUSCH.

公开(公告)号：US20250133377A1

公开(公告)日：2025-04-24

申请号：US19000943

申请日：2024-12-24

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04W4/40 ,  H04L1/1812 ,  H04L1/1867 ,  H04W72/02 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1263 ,  H04W72/20

Abstract: Methods, systems, and devices may assist in broadcast, multicast, or unicast on sidelink for 5G eV2X. The following mechanisms for broadcast, multicast, or unicast on sidelink for Vehicle to everything (V2X). Broadcast on sidelink may include methods, systems, or devices for broadcast occasions or monitoring window. Multicast on sidelink may include methods, systems, or devices for multicast occasions or group ID. Unicast on sidelink may include methods, systems, or devices for unicast occasions, UE ID, transmitter initiated transmission, or receiver initiated. Methods, systems, or devices may use communication occasions for platooning.

公开(公告)号：US20250071773A1

公开(公告)日：2025-02-27

申请号：US18940793

申请日：2024-11-07

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

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：US20250039887A1

公开(公告)日：2025-01-30

申请号：US18897534

申请日：2024-09-26

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 Xu ,  Wei Chen ,  Ahmed ElSamadouny ,  Salman Khan ,  Yifan Li

IPC: H04W72/23 ,  H04B7/06 ,  H04L5/00 ,  H04W68/02 ,  H04W72/044 ,  H04W72/0446 ,  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：US20250015865A1

公开(公告)日：2025-01-09

申请号：US18891413

申请日：2024-09-20

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04B7/06 ,  H04L5/00 ,  H04W72/1268 ,  H04W72/23 ,  H04W76/19 ,  H04W80/02

Abstract: Methods and systems are disclosed for a more flexible use of bandwidth parts (BWP) and cells for the various transmissions within the BFR procedure, such as the UL beam failure recovery request (BFRQ) and the DL beam failure recovery response (BFRR). The proposed framework allows these transmission to occur in BWPs with different Id, as well as on different cells. Example benefits include support for BFR on DL-only SCells by allowing the BFR UL transmissions on another cell with UL, support for sequential/parallel multi-cell BFRQ for improved BFR reliability and latency performance, and support for less UE-initiated BWP switching for BFR.

公开(公告)号：US20250007666A1

公开(公告)日：2025-01-02

申请号：US18704358

申请日：2022-11-08

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Allan Tsai ,  Patrick Svedman ,  Kyle Pan ,  Pascal Adjakple ,  Jerome Vogedes ,  Yifan Li ,  Guodong Zhang

IPC: H04L5/00 ,  H04W56/00 ,  H04W72/1268 ,  H04W74/0836 ,  H04W84/06

Abstract: Methods and apparatuses are described herein for synchronization enhancement in new radio non-terrestrial networks. In an example. a UE may determine a distance between the UE and a satellite of a NTN. The UE may determine a reference distance associated with the satellite. The UE may determine a differential delay associated with the UE based on the distance between the CE and the satellite and based on the reference distance. Based on the differential delay. the UE may determine a timing advance associated with the UE and the NTN.

公开(公告)号：US12177868B2

公开(公告)日：2024-12-24

申请号：US18759537

申请日：2024-06-28

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

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：US20240422791A1

公开(公告)日：2024-12-19

申请号：US18814993

申请日：2024-08-26

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04W72/23 ,  H04L1/1812 ,  H04W56/00

Abstract: Disclosed herein are methods, systems, and devices that are associated with downlink (DL) control, grant free (GF) transmission, or initial access. Particularly, disclosed herein are multi beam physical downlink control channel (PDCCH) transmission mechanisms, grant free transmissions mechanisms, demodulation reference signal (DMRS) for physical broadcast channel (PBCH) mechanisms, and DMRS sequence design for new radio-channel state information-reference signal (NR-CSI-RS) and new radio-physical downlink shared channel (PDSCH) (NR-PDSCH), among other things.

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.