公开(公告)号：US09113351B2

公开(公告)日：2015-08-18

申请号：US13965682

申请日：2013-08-13

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Christopher R. Cave ,  Joseph S. Levy ,  Virgil Comsa

IPC: H04B17/00 ,  H04W24/02 ,  H04W36/00 ,  H04W36/14

CPC classification number: H04W24/10 ,  H04W24/02 ,  H04W36/0083 ,  H04W36/14

Abstract: Techniques for performing inter-frequency and/or inter-radio access technology (RAT) measurements are disclosed. A multi-receiver wireless transmit/receive unit (WTRU) may receive downlink transmissions via a plurality of downlink carriers simultaneously. The WTRU may perform inter-frequency and/or inter-RAT measurements using an inactive receiver without measurement gaps if at least one receiver is inactive. If the WTRU receives a measurement order on a disabled carrier, the WTRU may perform measurements on the disabled carrier without measurement gaps using an inactive receiver while maintaining a status of the disabled carrier as disabled. The WTRU may perform the measurements autonomously if a trigger condition is met and at least one receiver is inactive. If all receivers are active, the WTRU may perform the measurements using measurement gaps, that may be configured on a downlink carrier, or alternatively, on an unpaired downlink carrier, or alternatively, on a subset of associated downlink uplink carrier pairs.

Abstract translation: 公开了用于执行频率间和/或无线电间接入技术（RAT）测量的技术。 多接收机无线发射/接收单元（WTRU）可以经由多个下行链路载波同时接收下行链路传输。 如果至少一个接收器不活动，则WTRU可以使用不活动的接收器来执行频间和/或RAT间测量。 如果WTRU在禁用的载波上接收测量命令，则WTRU可以在禁用的载波上执行测量，而不使用非活动接收机的测量间隙，同时将禁用的载波的状态保持为禁用。 如果满足触发条件并且至少一个接收器不活动，则WTRU可以自主地执行测量。 如果所有接收机都是活动的，则WTRU可以使用可以在下行链路载波上配置的测量间隙来执行测量，或者在不配置的下行链路载波上，或者在相关联的下行链路载波对的子集上配置。

公开(公告)号：US20140349651A1

公开(公告)日：2014-11-27

申请号：US14454317

申请日：2014-08-07

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Sylvie Gomes ,  Diana Pani ,  Virgil Comsa

IPC: H04W36/30

CPC classification number: H04W36/30 ,  H04W36/0088 ,  H04W84/045

Abstract: Systems, methods, and instrumentalities are disclosed that may provide for a WTRU to perform measurements in order to avoid radio link failure that may occur because the WTRU's neighboring cells are, or include, CSG cells. For example, thresholds may be implemented to compensate for the presence of CSG cells, a WTRU may make adjustments when performing measurements, etc.

Abstract translation: 公开了系统，方法和手段，其可以提供WTRU来执行测量，以便避免由于WTRU的相邻小区是CSG CSG小区或包括CSG小区可能发生的无线电链路故障。 例如，可以实现阈值来补偿CSG小区的存在，WTRU可以在执行测量时进行调整等。

公开(公告)号：US20130329589A1

公开(公告)日：2013-12-12

申请号：US13965682

申请日：2013-08-13

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Christopher R. Cave ,  Joseph S. Levy ,  Virgil Comsa

IPC: H04W24/02

CPC classification number: H04W24/10 ,  H04W24/02 ,  H04W36/0083 ,  H04W36/14

Abstract: Techniques for performing inter-frequency and/or inter-radio access technology (RAT) measurements are disclosed. A multi-receiver wireless transmit/receive unit (WTRU) may receive downlink transmissions via a plurality of downlink carriers simultaneously. The WTRU may perform inter-frequency and/or inter-RAT measurements using an inactive receiver without measurement gaps if at least one receiver is inactive. If the WTRU receives a measurement order on a disabled carrier, the WTRU may perform measurements on the disabled carrier without measurement gaps using an inactive receiver while maintaining a status of the disabled carrier as disabled. The WTRU may perform the measurements autonomously if a trigger condition is met and at least one receiver is inactive. If all receivers are active, the WTRU may perform the measurements using measurement gaps, that may be configured on a downlink carrier, or alternatively, on an unpaired downlink carrier, or alternatively, on a subset of associated downlink uplink carrier pairs.

Abstract translation: 公开了用于执行频率间和/或无线电间接入技术（RAT）测量的技术。 多接收机无线发射/接收单元（WTRU）可以经由多个下行链路载波同时接收下行链路传输。 如果至少一个接收器不活动，则WTRU可以使用不活动的接收器来执行频间和/或RAT间测量。 如果WTRU在禁用的载波上接收测量命令，则WTRU可以在禁用的载波上执行测量，而不使用非活动接收机的测量间隙，同时将禁用的载波的状态保持为禁用。 如果满足触发条件并且至少一个接收器不活动，则WTRU可以自主地执行测量。 如果所有接收机都是活动的，则WTRU可以使用可以在下行链路载波上配置的测量间隙来执行测量，或者在不配置的下行链路载波上，或者在相关联的下行链路载波对的子集上配置。

公开(公告)号：US12278683B2

公开(公告)日：2025-04-15

申请号：US18112690

申请日：2023-02-22

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Paul Marinier ,  Tao Deng ,  Benoit Pelletier ,  J. Patrick Tooher ,  Ghyslain Pelletier ,  Virgil Comsa

IPC: H04B7/06 ,  H04B7/0404 ,  H04B7/0456 ,  H04L5/00 ,  H04W52/52 ,  H04W56/00 ,  H04W72/23 ,  H04W74/0833

Abstract: Systems and methods described herein are provided for beamforming and uplink control and data transmission techniques. Such techniques enable a UE to maintain at least one beam process for operation with multiple beams and/or points. A beam process may be indicated for transmission or reception over a downlink or uplink physical channel. Power, timing, and channel state information may be specific to a beam process. A beam process may be established as part of a random access procedure in which resources may be provisioned in random access response messages. Techniques are provided to handle beam process failures, to use beam processes for mobility, and to select beams using open-loop and closed-loop selection procedures.

公开(公告)号：US20240422573A1

公开(公告)日：2024-12-19

申请号：US18813387

申请日：2024-08-23

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Moon-il Lee ,  Janet A. Stern-Berkowitz ,  Virgil Comsa ,  Meilong Jiang

IPC: H04W16/28 ,  H04B7/0417 ,  H04B7/06 ,  H04B7/08 ,  H04L5/00 ,  H04W24/10 ,  H04W52/36 ,  H04W74/0833

Abstract: A method and apparatus for determining Physical Random Access Channel (PRACH) resources and using beams are disclosed herein. In an example, a wireless transmit/receive unit (WTRU) may receive a broadcast message or a radio resource control message from base station that includes correspondence information regarding the plurality of beam reference signals, wherein the correspondence information designates at least one set of PRACH resources for each of the plurality of beam reference signals. In addition, the WTRU may measure a plurality of beam reference signals transmitted from a base station. Further, the WTRU may select a beam reference signal from among the plurality of measured beam reference signals. The WTRU may determine a set of PRACH resources designated for the selected beam reference signal based on the received correspondence information. Moreover, the WTRU may transmit a PRACH signal using at least one PRACH resource of the determined set of PRACH resources.

公开(公告)号：US20240357591A1

公开(公告)日：2024-10-24

申请号：US18758533

申请日：2024-06-28

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Moon-il Lee ,  Janet A. Stern-Berkowitz ,  Virgil Comsa

IPC: H04W72/1273 ,  H04L5/00 ,  H04W24/10 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23

CPC classification number: H04W72/1273 ,  H04W24/10 ,  H04W72/0453 ,  H04L5/0053 ,  H04L5/0094 ,  H04W72/0446 ,  H04W72/23

Abstract: Methods and systems are described herein for bandwidth part (BWP) operation in 5G wireless systems. A wireless transmit/receive unit (WTRU) may be configured to receive a physical downlink control channel (PDCCH) transmission on a first BWP associated with a first carrier. The PDCCH transmission may include scheduling information for receiving a physical shared downlink channel (PDSCH) transmission via a second BWP associated with a second carrier. The WTRU may be configured to determine one or more quasi co-located (QCL) parameters for the PDSCH transmission using a lowest transmission configuration indication (TCI) state associated with the second BWP associated with the second carrier based on a scheduling offset of the PDSCH transmission being less than a threshold and on the PDSCH transmission being received via the second BWP. The WTRU may be configured to receive the PDSCH transmission using the determined one or more QCL parameters.

公开(公告)号：US12075263B2

公开(公告)日：2024-08-27

申请号：US18306792

申请日：2023-04-25

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Moon-il Lee ,  Janet A. Stern-Berkowitz ,  Virgil Comsa ,  Meilong Jiang

IPC: H04W16/28 ,  H04B7/0417 ,  H04B7/06 ,  H04B7/08 ,  H04L5/00 ,  H04W24/10 ,  H04W52/36 ,  H04W74/0833

CPC classification number: H04W16/28 ,  H04B7/0417 ,  H04B7/061 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/086 ,  H04B7/088 ,  H04L5/0048 ,  H04W24/10 ,  H04W52/365 ,  H04W74/0833

Abstract: A wireless transmit/receive unit (WTRU) may measure one or more of a first plurality of beam reference signals. Further, the WTRU may select a first beam reference signal from among the measured one or more of the first plurality of beam reference signals. Also, WTRU may determine a set of physical random access channel (PRACH) resources for the selected first beam reference signal. Moreover, the WTRU may measure one or more of a second plurality of beam reference signals. Further, the WTRU may select a second beam reference signal from among the measured one or more of the second plurality of beam reference signals. The WTRU may transmit an indication of the selected second beam reference signal in a physical uplink shared channel (PUSCH) transmission, and may transmit a PRACH signal using at least one PRACH resource of the determined set of PRACH resources.

公开(公告)号：US11711768B2

公开(公告)日：2023-07-25

申请号：US17121036

申请日：2020-12-14

Applicant: InterDigital Patent Holdings, Inc.

Inventor： John W. Haim ,  Janet A. Stern-Berkowitz ,  Stephen E. Terry ,  Virgil Comsa

IPC: H04W4/00 ,  H04W52/14 ,  H04W52/32 ,  H04W52/36 ,  H04W52/34 ,  H04W52/02 ,  H04W52/24 ,  H04W52/04 ,  H04W52/30

CPC classification number: H04W52/146 ,  H04W52/0216 ,  H04W52/243 ,  H04W52/32 ,  H04W52/34 ,  H04W52/367 ,  H04W52/04 ,  H04W52/143 ,  H04W52/30 ,  H04W52/365 ,  Y02D30/70

Abstract: A method and apparatus for power control for wireless transmissions are disclosed. A wireless transmit/receive unit (WTRU) may reduce transmission power to channels for carrier aggregation such that a total transmit power of the WTRU is smaller than or equal to a maximum transmission power level in all symbols of a transmission. Further, transmission power may be allocated to the channels for carrier aggregation based on priority. Also, transmission power may be allocated to a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH) with uplink control information over a PUSCH without uplink control information. Moreover, transmission power may be allocated to a PUCCH or a PUSCH over a sounding reference signal (SRS) transmission. Additionally, the WTRU may transmit data over one or more channels, of the channels for carrier aggregation, at the respective transmission power allocated to the one or more channels.

公开(公告)号：US11626919B2

公开(公告)日：2023-04-11

申请号：US17558428

申请日：2021-12-21

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Paul Marinier ,  Tao Deng ,  Benoit Pelletier ,  J. Patrick Tooher ,  Ghyslain Pelletier ,  Virgil Comsa

IPC: H04B7/06 ,  H04B7/0404 ,  H04B7/0456 ,  H04L5/00 ,  H04W52/52 ,  H04W56/00 ,  H04W72/04 ,  H04W74/08

Abstract: Systems and methods described herein are provided for beamforming and uplink control and data transmission techniques. Such techniques enable a UE to maintain at least one beam process for operation with multiple beams and/or points. A beam process may be indicated for transmission or reception over a downlink or uplink physical channel. Power, timing, and channel state information may be specific to a beam process. A beam process may be established as part of a random access procedure in which resources may be provisioned in random access response messages. Techniques are provided to handle beam process failures, to use beam processes for mobility, and to select beams using open-loop and closed-loop selection procedures.

公开(公告)号：US20220182947A1

公开(公告)日：2022-06-09

申请号：US17681280

申请日：2022-02-25

Applicant: InterDigital Patent Holdings, Inc.

Inventor： GHYSLAIN PELLETIER ,  Paul Marinier ,  J. Patrick Tooher ,  Virgil Comsa ,  Diana Pani ,  Stephen E. Terry

IPC: H04W52/14 ,  H04W52/34 ,  H04W52/36 ,  H04W72/04

Abstract: Methods and devices for offloading and/or aggregation of resources to coordinate uplink transmissions when interacting with different schedulers are disclosed herein. A method in a WTRU incudes functionality for coordinating with a different scheduler for each eNB associated with the WTRU's configuration. Disclosed methods include autonomous WTRU grand selection and power scaling, and dynamic prioritization of transmission and power scaling priority.