公开(公告)号：US20240235740A1

公开(公告)日：2024-07-11

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

CPC classification number: H04L1/1678 ,  H04L1/1822 ,  H04L1/1887 ,  H04L5/0007 ,  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：US20240196409A1

公开(公告)日：2024-06-13

申请号：US18525321

申请日：2023-11-30

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Moon-il Lee ,  Erdem Bala ,  Janet A. Stern-Berkowitz ,  Afshin Haghighat ,  Marian Rudolf ,  Paul Marinier ,  Faris Alfarhan ,  Dylan James Watts ,  Ghyslain Pelletier

IPC: H04W72/23 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/50 ,  H04W72/54

CPC classification number: H04W72/23 ,  H04L5/0051 ,  H04W72/0446 ,  H04W72/535 ,  H04W72/54

Abstract: Methods and apparatus for wireless transmit/receive unit (WTRU) power control are described. A method includes receiving a time domain resource allocation (TDRA) list configuration including entries, each including a resource allocation that includes a slot offset value. L1 signaling is received indicating a minimum slot offset value. Downlink control information (DCI) is decoded on a physical downlink control channel in a slot. An index is obtained from the decoded DCI, identifying an entry in the TDRA list. A particular slot offset value identified by the index is retrieved from the TDRA list and compared with the minimum slot offset value. If the particular slot offset value is less than the minimum slot offset value, the entry is invalid. If the particular slot offset value is greater than or equal to the minimum slot offset value, a physical downlink shared channel is received.

公开(公告)号：US11996964B2

公开(公告)日：2024-05-28

申请号：US17943386

申请日：2022-09-13

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04W72/0446 ,  H04W72/1268

CPC classification number: H04L27/2602 ,  H04L5/0048 ,  H04L5/0051 ,  H04W72/0446 ,  H04W72/1268 ,  H04L27/2603 ,  H04L27/26035

Abstract: Methods and systems are disclosed for reducing control signaling in uplink transmissions. A device, such as a wireless transmit/receive unit, may determine to use a demodulation reference signal (DM-RS) transmission schedule out of a plurality of DM-RS transmission schedules. The DM-RS transmission schedule may be characterized by a DM-RS transmission being mapped to a single orthogonal frequency-division multiplexing (OFDM) symbol per subframe of a data stream. The DM-RS transmission schedule may be characterized by a DM-RS transmission being mapped to a first subset of subcarriers of an OFDM symbol of a subframe of a data stream and Physical Uplink Shared Channel (PUSCH) transmission or Physical Uplink Control Channel (PUCCH) control information being mapped to a second set of subcarriers of the OFDM symbol. The first set of subcarriers may be different than the second set of subcarriers. The data stream may be transmitted according to the DM-RS transmission schedule.

公开(公告)号：US20240107554A1

公开(公告)日：2024-03-28

申请号：US18531250

申请日：2023-12-06

Applicant: InterDigital Patent Holdings, Inc.

Inventor： J. Patrick Tooher ,  Janet A. Stern-Berkowitz ,  Pouriya Sadeghi ,  Moon-il Lee ,  Marian Rudolf

IPC: H04W72/23 ,  H04W16/14 ,  H04W74/08

CPC classification number: H04W72/23 ,  H04W16/14 ,  H04W74/0808 ,  H04W72/1215

Abstract: Systems, devices, and methods are disclosed for determining one or more clear channel assessment occasions. Techniques include performing one or more clear channel assessment (CCA) processes on a channel during the one or more CCA occasions to determine whether the channel is available at the one or more CCA occasion based on the one or more CCA processes. Techniques include sending the UL transmission in one or more UL subframes via the channel on at least a condition that the channel is determined to be available at the one or more CCA occasions. Techniques include performing the one or more CCA processes on the channel during another of the one or more CCA occasions on at least a condition that the channel is determined to be unavailable at a previous CCA occasion.

公开(公告)号：US20240080701A1

公开(公告)日：2024-03-07

申请号：US18507607

申请日：2023-11-13

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Pouriya Sadeghi ,  Janet A. Stern-Berkowitz ,  Moon-il Lee ,  J. Patrick Tooher ,  Marian Rudolf

IPC: H04W24/10 ,  H04W72/0446

CPC classification number: H04W24/10 ,  H04W72/0446 ,  H04L5/001

Abstract: A wireless transmit/receive unit (WTRU) may receive first measurement indication information indicating an activation of measurement reporting. The WTRU may determine a first set of resource elements (REs) based on the first measurement indication information. Further, the first set of REs may be associated with measurement-related time and frequency resources. Also, the WTRU may receive one or more measurement-related signals in the indicated first set of REs. Additionally, the WTRU may perform a measurement of each measurement-related signal. The WTRU may transmit, based on the first measurement indication information, a measurement report based on the measurement of each measurement-related signal. Further, the WTRU may receive second measurement indication information indicating a deactivation of measurement reporting. Also, the WTRU may receive indication information regarding a plurality of sets of REs via radio resource control (RRC) signaling, including at least the first set of REs and a second set of REs.

公开(公告)号：US20240057040A1

公开(公告)日：2024-02-15

申请号：US18379998

申请日：2023-10-13

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Moon-il Lee ,  Chang-Soo Koo ,  Sung-Hyuk Shin ,  Janet A. Stern-Berkowitz ,  Marian Rudolf ,  Fengjun Xi ,  Ananth Kini ,  Seyed Mohsen Hosseinian ,  Paul Marinier

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/04 ,  H04L5/0053

Abstract: ePDCCH may be provided. For example, a WTRU may receive a configuration for monitoring an ePDCCH resource. Based on the configuration, the WTRU may be configured to monitor and may monitor the ePDCCH resource on a particular subframe. Additionally, a WTRU may derive an aggregation level for a subframe associated with an aggregation level number NAL. The WTRU may transmit or monitor an ePDCCH using the aggregation level associated with the NAL for the subframe. A WTRU may also receive a reference signal. The WTRU may then determine the type of reference signal received. The WTRU may perform a demodulation of the PDSCH or ePDCCH using a demodulation timing based on the determined type. The ePDCCH or PDSCH may also be monitored or received by identifying a demodulation reference timing implicitly based on a location of one or more ePDCCH resources where the WTRU may receive DCI.

公开(公告)号：US11889338B2

公开(公告)日：2024-01-30

申请号：US18078398

申请日：2022-12-09

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Paul Marinier ,  Moon-il Lee ,  J Patrick Tooher ,  Marian Rudolf ,  Shahrokh Nayeb Nazar ,  Janet A Stern-Berkowitz

IPC: H04W24/10 ,  H04L5/00 ,  H04J11/00 ,  H04W72/541

CPC classification number: H04W24/10 ,  H04J11/005 ,  H04L5/0053 ,  H04L5/0092 ,  H04W72/541 ,  H04L5/0007

Abstract: A method implemented by a Wireless Transmit/Receive Unit (WTRU) includes receiving a DeModulation Interference Measurement (DM-IM) resource, determining an interference measurement based on the DM-IM resource, and demodulating a received signal based on the interference measurement. An interference is suppressed based on the interference measurement. At least one DM-IM resource is located in a Physical Resource Block (PRB). The DM-IM resource is located in a PRB allocated for the WTRU. The DM-IM resource is a plurality of DM-IM resources which form a DM-IM pattern, and the DM-IM pattern is located on a Physical Downlink Shared Channel (PDSCH) and/or an enhanced Physical Downlink Shared Channel (E-PDSCH) of at least one Long Term Evolution (LTE) subframe. The DM-IM resources are different for different Physical Resource Blocks (PRB) in the LTE subframe. The DM-IM is located in a Long Term Evolution (LTE) Resource Block (RB), and the DM-IM pattern is adjusted.

公开(公告)号：US11791968B2

公开(公告)日：2023-10-17

申请号：US17340933

申请日：2021-06-07

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04L5/00 ,  H04L1/00 ,  H04L1/1607 ,  H04L1/1867 ,  H04W52/02 ,  H04W72/02 ,  H04L1/12 ,  H04W72/21

CPC classification number: H04L5/0055 ,  H04L1/003 ,  H04L1/0026 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0061 ,  H04L1/0073 ,  H04L1/1671 ,  H04L1/1893 ,  H04W52/0216 ,  H04W72/02 ,  H04L2001/125 ,  H04W72/21 ,  Y02D30/70

Abstract: A wireless transmit/receive unit (WTRU) may receive one or more physical downlink shared channel (PDSCH) transmissions and each PDSCH transmission may be associated with downlink control information (DCI) and a group of PDSCH transmissions. Further, the WTRU may determine a first group or a second group based on an indication received in DCI associated with at least one of the PDSCH transmissions. Then, the WTRU may generate hybrid automatic repeat request (HARQ)-acknowledgment (ACK) feedback for data received in one or more PDSCH transmissions associated with the determined group. Moreover, the WTRU may transmit the HARQ-ACK feedback. In an example, the DCI which includes the indication may schedule a plurality of PDSCH transmissions included in the determined group. In another example, the DCI which includes the indication may further include a first codepoint mapped to the first group or a second codepoint mapped to the second group.

公开(公告)号：US20230292242A1

公开(公告)日：2023-09-14

申请号：US18198044

申请日：2023-05-16

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Hussain Elkotby ,  Ravikumar V. Pragada ,  Tanbir Haque ,  Patrick Cabrol ,  Anantharaman Balasubramanian ,  Marian Rudolf ,  William E. Lawton

IPC: H04W52/02

CPC classification number: H04W52/0229

Abstract: A method for use in a Wireless Transmit/Receive Unit (WTRU). The method comprises: receiving, using an active receiver, system information comprising a first system information set, wherein the first system information set is currently valid for the WTRU; storing the system information; deactivating the active receiver and activating a passive receiver; determining whether a difference between a first parameter in the BSSI and a first parameter in the first system information set is greater than a threshold value, wherein on a condition that the difference is greater than the threshold value, reactivating the active receiver to receive a second system information set as a currently valid system information set for the WTRU.

公开(公告)号：US11743874B2

公开(公告)日：2023-08-29

申请号：US16815396

申请日：2020-03-11

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Sung-Hyuk Shin ,  Chang-Soo Koo ,  Ghyslain Pelletier ,  Janet A. Stern-Berkowitz ,  Marian Rudolf ,  Nobuyuki Tamaki ,  Allan Y. Tsai ,  Pouriya Sadeghi

IPC: H04W72/0453 ,  H04L5/00 ,  H04W36/00 ,  H04W72/23

CPC classification number: H04W72/0453 ,  H04L5/001 ,  H04L5/0044 ,  H04L5/0092 ,  H04L5/0098 ,  H04W36/00 ,  H04W72/23 ,  H04L5/0053 ,  H04L5/0094

Abstract: Systems, methods, and instrumentalities are disclosed for downlink resource allocation associated with a shared frequency band. A WTRU may receive resource allocation information associated with a component carrier and at least one carrier segment. The component carrier and the least one carrier segment may each comprise a plurality of resource block groups (RBG). At least two bitmaps may be associated with the resource allocation information. A size of a resource block group (RBG) of the component carrier and the at least one carrier segment may be based on a combined number of resource blocks (RB) of the component carrier and the one or more carrier segments divided by a 3GPP Rel-8/Rel-10 RBG size of the component carrier. The WTRU may determine at least one RBG allocated to the WTRU using the resource allocation information and may receive and decode the at least one RBG allocated to the WTRU.