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公开(公告)号：US11968644B2
公开(公告)日：2024-04-23
申请号：US17279213
申请日：2019-08-14
Applicant: InterDigital Patent Holdings, Inc.
Inventor： Joseph M. Murray , Pascal M. Adjakple , Lakshmi R. Iyer , Qing Li , Mohamed Awadin , Yifan Li , Allan Y. Tsai , Guodong Zhang
CPC classification number: H04W68/005 , H04W24/08 , H04W56/001 , H04W72/23 , H04W74/0816
Abstract: Methods and apparatus are disclosed pertaining to paging for Unlicensed New Radio (NR-U). Methods include means to: perform paging using multiple paging occasions (POs) during a DRX Cycle, perform paging using a paging window, perform paging using a PO comprised of multiple sweeps and/or repetitions, signal DL channel access indication for paging, and perform paging using dynamic DRX. In accordance with one embodiment, an apparatus may receive a signal comprising a plurality of POs, wherein each PO comprises a plurality of physical downlink control channel (PDCCH) monitoring occasions. The apparatus may monitor, based on receiving an identifier associated with the apparatus, a portion of the plurality of paging occasions. The apparatus may detect, in a PDCCH monitoring occasion of the plurality of PDCCH monitoring occasions in the monitored portion, paging downlink control information (DCI).
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公开(公告)号：US11937290B2
公开(公告)日：2024-03-19
申请号：US17325624
申请日：2021-05-20
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: H04W72/04 , H04L1/1812 , H04L1/1829 , H04L5/00 , H04W72/566 , H04B7/06 , H04L27/26
CPC classification number: H04W72/569 , H04L1/1812 , H04L1/1861 , H04L5/0055 , H04B7/0617 , H04B7/0695 , H04L5/0051 , H04L27/2656 , H04L27/2666 , H04L27/2675
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, for example, initial access, control channel design, eMBB and URLLC mixing, and beam training.
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公开(公告)号：US11792874B2
公开(公告)日：2023-10-17
申请号：US16644352
申请日：2018-09-07
Applicant: InterDigital Patent Holdings, Inc.
Inventor： Allan Y. Tsai , Guodong Zhang , Qing Li , Lakshmi R. Iyer , Yifan Li , Joseph M. Murray , Pascal M. Adjakple
CPC classification number: H04W76/27 , H04W74/0833
Abstract: The present application is at least directed to an apparatus on a network including a non-transitory memory including instructions stored thereon for re-establishing a remote radio control (RRC) connection with a base station. The apparatus also includes a processor, operably coupled to the non-transitory memory, capable of executing an instruction of determining a radio link failure has occurred between a first bandwidth part (BWP) of the apparatus tuned to a base station. The processor also executes the instruction of initiating a random access (RA) procedure. The processor also executes the instruction of determining whether a configured contention-based physical random access channel (PRACH) resource overlaps with the first BWP. The process further executes the instruction of transmitting a RA preamble including the configured contention-based PRACH resource to the base station. The processor even further executes the instruction of receiving a RA response from the base station.
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公开(公告)号：US11770821B2
公开(公告)日：2023-09-26
申请号：US16825516
申请日：2020-03-20
Applicant: InterDigital Patent Holdings, Inc.
Inventor： Qing Li , Guodong Zhang , Pascal M. Adjakple , Lakshmi R. Iyer , Allan Y. Tsai , Qian Zhang , Wei Chen , Joseph M. Murray , Tianyi Xu
IPC: H04W72/12 , H04W72/1268 , H04L1/1867 , H04W74/08 , H04W4/70 , H04L5/00
CPC classification number: H04W72/1268 , H04L1/1887 , H04L5/0007 , H04W4/70 , H04W74/08 , H04W74/0816 , H04W72/1247
Abstract: Current approaches to transmitting uplink data in a network often require resources to be granted. In an example, a node or apparatus may configure a plurality of devices to operate in a grant-less mode in accordance with a respective grant-less access allocation, such that, when the plurality of devices transmit messages uplink in the network, the messages are transmitted using frequency resources defined by the respective grant-less access allocation, and the plurality of devices transmit the messages without being granted access to transmit the messages, so as to operate in the grant-less mode.
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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
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.
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Patent Agency Ranking
公开(公告)号：US20210367713A1
公开(公告)日：2021-11-25
申请号：US17398970
申请日：2021-08-10
Applicant: InterDigital Patent Holdings, Inc.
Inventor： Marian Rudolf , Paul Marinier , Diana Pani , Ghyslain Pelletier , Christopher R. Cave , Lakshmi R. Iyer , Muhammad U. Fazili
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.
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公开(公告)号：US11121819B2
公开(公告)日：2021-09-14
申请号：US16599162
申请日：2019-10-11
Applicant: InterDigital Patent Holdings, Inc.
Inventor： Marian Rudolf , Paul Marinier , Diana Pani , Ghyslain Pelletier , Christopher R. Cave , Lakshmi R. Iyer , Muhammad U. Fazili
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.
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公开(公告)号：US10355759B2
公开(公告)日：2019-07-16
申请号：US15375528
申请日：2016-12-12
Applicant: InterDigital Patent Holdings, Inc.
Inventor： Shahrokh Nayeb Nazar , Lakshmi R. Iyer , Robert L. Olesen , Benoit Pelletier , Manasa Raghavan , Moon-il Lee
IPC: H04W4/00 , 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.
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公开(公告)号：US20170331595A1
公开(公告)日：2017-11-16
申请号：US15667519
申请日：2017-08-02
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor： Marian Rudolf , Paul Marinier , Diana Pani , Ghyslain Pelletier , Christopher R. Cave , Lakshmi R. Iyer , Muhammad U. Fazili
CPC classification number: H04L1/1678 , H04L1/1822 , H04L1/1887 , H04L5/0007 , H04W72/0413 , H04W72/042 , H04W72/0446
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.
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公开(公告)号：US09762356B2
公开(公告)日：2017-09-12
申请号：US14374504
申请日：2013-01-24
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor： Marian Rudolf , Paul Marinier , Diana Pani , Ghyslain Pelletier , Christopher Cave , Lakshmi R. Iyer , Muhammad U. Fazili
CPC classification number: H04L1/1678 , H04L1/1822 , H04L1/1887 , H04L5/0007 , H04W72/0413 , H04W72/042 , H04W72/0446
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.
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