公开(公告)号：US11871451B2

公开(公告)日：2024-01-09

申请号：US17275702

申请日：2019-07-17

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04W74/08 ,  H04W74/00

CPC classification number: H04W74/0816 ,  H04W74/006 ,  H04W74/0841 ,  H04W74/0866

Abstract: Sub-band (SB) indications and listen-before-talk (LBT) outcomes may be used to adjust communications between devices such as wireless terminals and base stations. For example, a wireless terminal may receive SB indications including SB configurations and/or LBT outcomes of a base station, and other information such as a remapped CORESET. Similarly, a terminal may determine that a physical resource block (PRB) is invalid based at least in part on whether the PRB overlaps with a guard band. The terminal may be arranged to adjust its searches and transmissions based on received SB indications, and to provide the base station with LBT outcomes of the terminal.

公开(公告)号：US20220361180A1

公开(公告)日：2022-11-10

申请号：US17870284

申请日：2022-07-21

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04W72/08 ,  H04B7/0417 ,  H04B7/0452 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04L5/14 ,  H04B7/06

Abstract: The present application at least describes a frame structure in new radio. The frame structure includes a self-contained transmission time interval. The transmission time interval includes a control information region including plural beams. The interval also includes a downlink transmission channel region including plural beams. The frame structure is configured for downlink control information to be swept through the time interval. The frame structure is also configured for an uplink or downlink grant resource subsequently to be swept through the time interval. The present application is also directed to a method for configuring user equipment.

公开(公告)号：US11438905B2

公开(公告)日：2022-09-06

申请号：US17132026

申请日：2020-12-23

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: H04W72/08 ,  H04B7/0417 ,  H04B7/0452 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04L5/14 ,  H04B7/06

Abstract: The present application at least describes a frame structure in new radio. The frame structure includes a self-contained transmission time interval. The transmission time interval includes a control information region including plural beams. The interval also includes a downlink transmission channel region including plural beams. The frame structure is configured for downlink control information to be swept through the time interval. The frame structure is also configured for an uplink or downlink grant resource subsequently to be swept through the time interval. The present application is also directed to a method for configuring user equipment.

公开(公告)号：US20190341977A1

公开(公告)日：2019-11-07

申请号：US16513184

申请日：2019-07-16

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Shahrokh Nayeb Nazar ,  Lakshmi R. Iyer ,  Robert L. Olesen ,  Benoit Pelletier ,  Manasa Raghavan ,  Moon-il Lee

IPC: H04B7/0452 ,  H04W72/04

Abstract: An eNode-B for a multi-user multiple-input multiple-output (MU-MIMO) downlink transmission to at least first and second wireless transmit/receive units (WTRUs) via resource elements (REs) of first and second spatial layers, the eNode-B comprising a transmitter and a processor, the processor coupled to the transmitter. The processor configured to generate the MU-MIMO downlink transmission including: allocating a first set of the REs, as first resources, to the first spatial layer for the first WTRU, and a second set of the REs, as second resources, to the second spatial layer for the second WTRU, mapping a first WTRU-specific reference signal (RS) associated with the first WTRU on a subset of the first resources, and a second WTRU-specific RS associated with the second WTRU on a subset of the second resources, muting allocated REs of the first resources overlapping with the subset of the second resources used for the second WTRU-specific RS, and allocated REs of the second resources overlapping with the subset of the first resources used for the first WTRU-specific RS. The transmitter configured to send the MU-MIMO downlink transmission.

公开(公告)号：US12294461B2

公开(公告)日：2025-05-06

申请号：US18616761

申请日：2024-03-26

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Marian Rudolf ,  Paul Marinier ,  Diana Pani ,  Ghyslain Pelletier ,  Christopher R. Cave ,  Lakshmi R. Iyer ,  Muhammad U Fazili

IPC: H04L1/1607 ,  H04L1/1822 ,  H04L1/1867 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/21 ,  H04W72/23

Abstract: Systems and method are specified to improve the reception of UL transmission, for example in power or coverage limited situations. A WTRU may modify procedures to increase the available signal energy for reception at an eNB and/or to make more efficient use of the available signal energy at the receiver for processing UL transmissions. Example methods for increasing UL link coverage may include modifying HARQ timing (e.g., shorter HARQ), using longer TTIs, use of dedicated PUSCH allocations, use of new PUSCH modulations, enhanced reference signal design, UL macro diversity reception for PUSCH, utilizing protocol reduction techniques, ensuring in-order packet delivery, and/or utilizing a configuration for coverage limited/power limited modes of operation. The proposed methods may be applied individually or in any combination.

公开(公告)号：US20250132866A1

公开(公告)日：2025-04-24

申请号：US19000856

申请日：2024-12-24

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04L1/1812 ,  H04L1/1829

Abstract: Hybrid automatic repeat request (HARQ) processes may be transmitted via configured grants as well as scheduled grants. The configured grants may include time and frequency resources, and transmissions may occur across contiguous transmissions. HARQ process information, such as HARQ IDs and redundancy versions, may be communicated via a control channel, and the control channel may be multiplexed with the transmission resources of the configured grants. Retransmission timers may be used for HARQ processes conveyed via configured grants, and the transmitting apparatus may signal to a receiver when to send an acknowledgement. An acknowledgement may take the form of bitmaps for code block groups of a HARQ. A configured grant may be selected from among multiple configured grants based upon low latency, for example. A group of configured grants may be activated or deactivated via a single command.

公开(公告)号：US12279142B2

公开(公告)日：2025-04-15

申请号：US17146539

申请日：2021-01-12

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04W24/10 ,  H04B7/0408 ,  H04B7/0456 ,  H04B7/06 ,  H04L5/00 ,  H04W16/28 ,  H04W72/04 ,  H04W72/044 ,  H04W80/02

Abstract: Layer 2 structures and procedures may be used for beam management in new radio networks. In a first example, a new radio layer 2 structure may be used to facilitate beam management at the medium access control sublayer. In a second example, new radio feedback mechanisms may be signaled between peer medium access control entities and used to assist with beam management. In a third example, new radio beam management procedures may include new radio beam training, new radio beam alignment, new radio beam tracking, or new radio beam configuration. In a fourth example, new radio connection control procedure may include new radio initial access or new radio mobility management.

公开(公告)号：US12250632B2

公开(公告)日：2025-03-11

申请号：US17442728

申请日：2020-03-27

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Joseph M. Murray ,  Pascal M. Adjakple ,  Stephen E. Terry ,  Rocco Di Girolamo ,  Lakshmi R. Iyer ,  Guodong Zhang ,  Patrick Svedman ,  Yifan Li ,  Allan Y. Tsai ,  Zhuo Chen ,  Mohamed Awadin ,  Qing Li

IPC: H04W52/02 ,  H04W72/044 ,  H04W72/23 ,  H04W80/02

Abstract: A first apparatus including a processor; and a memory storing computer-executable instructions that when executed by the processor cause the first apparatus to: receive, from a second apparatus, information including Discontinuous Reception (DRX) configurations, wherein one of the DRX configurations is a first active DRX configuration and other DRX configurations are candidate DRX configurations; perform Physical Downlink Control Channel (PDCCH) monitoring in accordance with the first active DRX configuration; monitor signaling from the second apparatus for an indication that is used for adapting the first active DRX configuration; receive from the second apparatus an indication for adapting the first active DRX configuration into a second active DRX configuration; based on the indication for adapting the first active DRX configuration into the second active DRX configuration, adapt the first active DRX configuration into the second active DRX configuration; and perform PDCCH monitoring in accordance with the second active DRX configuration.

公开(公告)号：US12245265B2

公开(公告)日：2025-03-04

申请号：US17441757

申请日：2020-02-05

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04W72/56 ,  H04W72/0446 ,  H04W72/1263 ,  H04W72/20

Abstract: An electronic device that is configured to schedule transmission of data to at least one other electronic device via sidelink resources in a wireless communication network; identify that the scheduled transmission of the data is preempted by another transmission occurring within at least a part of the sidelink resources; and control transmission of the data to at least one other electronic device based on the identifying.

公开(公告)号：US12207291B2

公开(公告)日：2025-01-21

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: H04L5/00 ,  H04L1/1812 ,  H04L1/1829 ,  H04W72/566 ,  H04B7/06 ,  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.