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

IPC: H04L1/16 ,  H04L1/18 ,  H04W72/04 ,  H04L5/00

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：US20210266871A1

公开(公告)日：2021-08-26

申请号：US17317449

申请日：2021-05-11

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Marian Rudolf ,  Benoit Pelletier ,  Diana Pani ,  Paul Marinier ,  Samian Kaur ,  Martino Freda

IPC: H04W72/04 ,  H04L29/08 ,  H04W4/70 ,  H04L12/18 ,  H04W72/12 ,  H04W88/02 ,  H04W92/18

Abstract: Systems, methods, and instrumentalities are disclosed to determine access control and channel and signaling priority. A wireless transmit/receive unit (WTRU) may comprise a processor configured, at least in part, to determine device-to-device (D2D) data to be transmitted. The WTRU may determine if the D2D data may be transmitted. The WTRU may determine available scheduling assignment (SA) resources used for priority based D2D data signals. The WTRU may select one or more available SA resources used for priority based D2D data signals. The WTRU may transmit the D2D data, wherein the D2D data may be transmitted on the selected SA resources.

公开(公告)号：US20210029694A1

公开(公告)日：2021-01-28

申请号：US17067298

申请日：2020-10-09

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Shahrokh Nayeb Nazar ,  Kyle Jung-Lin Pan ,  Robert L. Olesen ,  Ghyslain Pelletier ,  Marian Rudolf ,  Paul Marinier ,  Charles A. Dennean ,  Stephen G. Dick ,  Allan Y. Tsai ,  Christopher R. Cave ,  Chang-Soo Koo

IPC: H04W72/04 ,  H04L1/00 ,  H04L5/00 ,  H04L1/16 ,  H04L1/18 ,  H04B1/7097

Abstract: Methods and systems for transmitting uplink control information and feedback are disclosed for carrier aggregation systems. A user equipment device may be configured to transmit uplink control information and other feedback for several downlink component carriers using one or more uplink component carriers. The user equipment device may be configured to transmit such data using a physical uplink control channel rather than a physical uplink shared channel. The user equipment device may be configured to determine the uplink control information and feedback data that is to be transmitted, the physical uplink control channel resources to be used to transmit the uplink control information and feedback data, and how the uplink control information and feedback data may be transmitted over the physical uplink control channel.

公开(公告)号：US20200374094A1

公开(公告)日：2020-11-26

申请号：US16989854

申请日：2020-08-10

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Ghyslain Pelletier ,  Paul Marinier ,  Marian Rudolf ,  J. Patrick Tooher

IPC: H04L5/00

Abstract: Techniques for efficient downlink control with a large number of carriers and/or TTIs are described. Techniques for blind decoding reduction may include making the search space and/or aggregation level of candidates for a first PDCCH/E-PDCCH associated with the characteristics of a second received PDCCH/E-PDCCH. Techniques may include embedding DCI for a set of serving cells and/or TTIs in a PDSCH. DCI for a set of serving cells and/or TTIs may be included in single PDCCH/E-PDCCH. To reduce overhead, carrier indicator field interpretation may be associated with the serving cell or TTI from which the PDCCH/E-PDCCH containing the downlink control information is received, or the group of cells or TTIs to which the PDCCH/E-PDCCH containing the downlink control information belongs.

公开(公告)号：US10601567B2

公开(公告)日：2020-03-24

申请号：US15546559

申请日：2016-01-28

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Paul Marinier ,  Ghyslain Pelletier ,  J. Patrick Tooher ,  Pouriya Sadeghi ,  Marian Rudolf

IPC: H04L5/00 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04W52/02 ,  H04W72/02 ,  H04L1/12 ,  H04W72/04

Abstract: A method and apparatus for uplink feedback for operating with a large number of carriers are disclosed herein. A method in a wireless transmit/receive unit (WTRU) includes receiving a plurality of transport blocks over a set of a plurality of configured carriers, generating hybrid automatic repeat request (HARQ)-acknowledgment (ACK) feedback for the transport blocks and determining a number of HARQ-ACK feedback bits to use for the HARQ-ACK feedback. Further, the WTRU may apply, to the HARQ-ACK feedback bits, Reed-Muller coding on a condition that the number of HARQ-ACK feedback bits is less than or equal to a threshold or convolutional coding on a condition that the number of HARQ-ACK feedback bits is greater than a threshold. The WTRU may then transmit the encoded HARQ-ACK feedback bits. In addition, the WTRU may conditionally append cyclic redundancy check (CRC) bits onto the HARQ-ACK feedback bits, and encode and transmit the CRC bits.

公开(公告)号：US10542560B2

公开(公告)日：2020-01-21

申请号：US16450488

申请日：2019-06-24

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Paul Marinier ,  Diana Pani ,  Ghyslain Pelletier ,  Marian Rudolf

IPC: H04W74/00 ,  H04W72/12 ,  H04B7/06 ,  H04L5/00 ,  H04W88/06 ,  H04W72/04 ,  H04L1/18 ,  H04L1/00 ,  H04W24/10 ,  H04W12/10 ,  H04L1/16

Abstract: A method and apparatus for sending uplink control information by a multi-mode wireless transmit/receive unit (WTRU) capable of operating on multiple component carriers of a plurality of radio access technologies (RATs) for multi-RAT operation are disclosed. The WTRU may generate uplink control information (UCI) pertaining to a first RAT and a second RAT, wherein the UCI may include a first plurality of hybrid automatic repeat request acknowledgements (HARQ-ACKs) pertaining to a plurality of downlink (DL) transmissions of the first RAT and a second plurality of HARQ-ACKs pertaining to a plurality of DL transmissions of the second RAT. The WTRU may multiplex at least part of the generated UCI pertaining to the first RAT and at least part of the generated UCI pertaining to the second RAT onto a physical channel on a component carrier of the second RAT.

公开(公告)号：US20200011957A1

公开(公告)日：2020-01-09

申请号：US16517858

申请日：2019-07-22

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Guodong Zhang ,  Joseph S. Levy ,  Philip J. Pietraski ,  Janet A. Stern-Berkowitz ,  Charles A. Dennean ,  Marian Rudolf ,  John W. Haim

IPC: G01S5/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/12

Abstract: Methods and apparatus for supporting reference signals are disclosed. A wireless transmit receive unit (WTRU) is configured to receive a reference signal of a first type. The first type is other than a cell specific reference signal (CRS), an Multicast Broadcast Single Frequency Network (MBSFN) reference signal or a demodulation reference signal (DM-RS). Reference signals of the first type are received in resource elements other than resource elements used for a physical broadcast channel (PBCH), a primary synchronization signal or a secondary synchronization signal. The WTRU is configured to receive a radio resource control message indicating a subframe position in which the reference signal of the first type is transmitted and a periodicity of a transmission of the reference signal of the first type, and a number of antenna ports for a transmission of the reference signal of the first type.

公开(公告)号：US20190141722A1

公开(公告)日：2019-05-09

申请号：US16180765

申请日：2018-11-05

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Shahrokh Nayeb Nazar ,  Robert L Olesen ,  Paul Marinier ,  Ghyslain Pelletier ,  Kyle Jung-Lin Pan ,  Marian Rudolf ,  Muhammad U Fazili ,  Lakshmi R Iyer

IPC: H04W72/10 ,  H04W74/08 ,  H04W72/04 ,  H04W24/10 ,  H04W24/08 ,  H04L1/00 ,  H04L1/16 ,  H04L5/00

Abstract: Channel state information is reported in periodic and aperiodic reports for multiple component carriers or serving cells. Channel state information may be reported for a subset of aggregated downlink carriers or serving cells. For an aperiodic report, the carrier(s)/serving cell(s) for which channel state information is reported are determined based on the request for the aperiodic report. When a CQI/PMI/RI report and a HARQ ACK/NACK report coincide in a subframe, the HARQ ACK/NACK report is transmitted on PUCCH, and the CQI/PMI/RI report is transmitted on PUSCH.

公开(公告)号：US10264437B2

公开(公告)日：2019-04-16

申请号：US14765201

申请日：2014-01-16

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Gwenael Poitau ,  Ghyslain Pelletier ,  Marian Rudolf ,  Benoit Pelletier ,  Paul Marinier ,  Diana Pani

IPC: H04L5/06 ,  H04W8/00 ,  H04W76/14 ,  H04W76/02 ,  H04W72/04

Abstract: Physical layer processing and procedures for device-to-device (D2D) discovery signal generation and transmission and scheduling of D2D discovery signals are described. Detection and measurement of a D2D discovery signal, D2D signal identity management, and monitoring by a wireless transmit/receive unit (WTRU) of PDCCH for D2D discovery scheduling is described, as is a WTRU that may be configured with a D2D-specific transmission/reception opportunity pattern. The discovery signal may carry a payload for explicit information about user and/or service identity, and may be mapped to physical resources in such a way as to decouple transmission/reception of the discovery signal from downlink operations. A WTRU may measure a D2D discovery signal quality and report to the network.

公开(公告)号：US20190090219A1

公开(公告)日：2019-03-21

申请号：US16192486

申请日：2018-11-15

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Moon-il Lee ,  Janet A. Stern-Berkowitz ,  Nobuyuki Tamaki ,  John W. Haim ,  Pouriya Sadeghi ,  Marian Rudolf ,  Shahrokh Nayeb Nazar

IPC: H04W72/00 ,  H04L1/18 ,  H04W74/00 ,  H04W4/70 ,  H04B17/318 ,  H04W4/02 ,  H04W74/08 ,  H04W4/06 ,  H04W48/12

Abstract: A method and apparatus are described for a low cost machine-type-communication (LC-MTC) wireless transmit/receive unit (WTRU) to enhance coverage. An example method for physical broadcast channel (PBCH) enhancement includes receiving system information on an enhanced PBCH (ePBCH). The ePBCH is located in a set of radio frames which is a subset of available radio frames, where the subset includes fewer than all the available radio frames. The ePBCH is received in at least one radio frame of the set of radio frames. An example method for physical random access channel (PRACH) enhancement includes receiving configuration of legacy PRACH resources and enhanced PRACH (ePRACH) resources. The WTRU selects one of legacy PRACH resources or ePRACH resources based on a coverage capability. Another example method for PRACH enhancement includes receiving configuration of ePRACH resources. The ePRACH resources include multiple ePRACH resource types, each ePRACH resource type being associated with a coverage capability.