公开(公告)号：EP4383589A2

公开(公告)日：2024-06-12

申请号：EP24157347.6

申请日：2016-11-10

申请人： InterDigital Patent Holdings, Inc.

发明人： LEE, Moon-il ,  DEENOO, Yugeswar ,  DENG, Tao ,  STERN-BERKOWITZ, Janet A. ,  PRAGADA, Ravikumar V ,  BELURI, Mihaela C.

IPC分类号： H04B7/08

CPC分类号： H04L5/0014 ,  H04L5/0044 ,  H04L5/0053 ,  H04B7/0408 ,  H04B7/0628 ,  H04B7/086

摘要： A wireless transmit/receive unit (WTRU) configured to perform wireless communications in higher frequency bands (e.g., above 6 GHz) using a fallback scheme is provided. The WTRU includes a receiver configured to receive, in a time transmission interval (TTI), at least one control signal and a first data signal using a first beam associated with a first beam identifier (ID) and a second data signal, subsequent to the first data signal, using a second beam associated with a second beam ID different from the first beam ID, such that one of the at least one control signal indicates the second beam ID; and a processor configured to switch a receive beam of the receiver from the first beam to the second beam based on the second beam ID to receive the second data signal.

公开(公告)号：EP4398495A3

公开(公告)日：2024-10-16

申请号：EP24177702.8

申请日：2018-10-17

申请人： InterDigital Patent Holdings, Inc.

发明人： GOYAL, Sanjay ,  ROY, Arnab ,  DEMIR, Alpaslan ,  TOOHER, J. Patrick ,  STERN-BERKOWITZ, Janet A. ,  LEE, Moon-il ,  GIUPPONI, Lorenza ,  LAGÉN MORANCHO, Sandra ,  BOJOVIC, Biljana ,  BELURI, Mihaela C.

IPC分类号： H04W74/08

摘要： A method to reserve a directional channel, such as in an unlicensed spectrum for instance, is disclosed. In an example embodiment, the method may be performed by a receiving node, such as a user equipment (UE) for instance. In such method, the receiving node may receive an enhanced directional transmit request message from a transmitting node and transmit an enhanced directional transmit confirmation message using one or more first beams, with at least one first beam being directed in a first direction towards the transmitting node. Further, the receiving node may transmit at least one additional enhanced directional transmit confirmation message using one or more second beams, with at least one second beam being directed in a second direction towards a potentially interfering node. In the method, the second direction is a different direction than the first direction.

公开(公告)号：EP4329390A3

公开(公告)日：2024-04-17

申请号：EP23202304.4

申请日：2019-04-03

申请人： InterDigital Patent Holdings, Inc.

发明人： MAHALINGAM, Nagi ,  BALASUBRAMANIAN, Anantharaman ,  BELURI, Mihaela C. ,  PRAGADA, Ravikumar V. ,  TAHERZADEH BOROUJENI, Mahmoud ,  NAYEB NAZAR, Shahrokh ,  HOSSEINIAN, Seyed Mohsen ,  LA SITA, Frank

IPC分类号： H04W74/08 ,  H04B7/185 ,  H04W56/00 ,  H04W74/0833

CPC分类号： H04W74/0833 ,  H04W56/0005 ,  H04W56/0045 ,  H04B7/18504 ,  H04B7/1851

摘要： Methods, systems, and devices for addressing timing advance (TA) in non-terrestrial network communication is disclosed herein. A wireless transmit and receive unit (WTRU) may receive system information from a base station attached to an airborne or spaceborne vehicle that indicates a physical random access channel (PRACH) resource. The WTRU may determine a timing offset based on a plurality of information, such as the location information and the system information. The WTRU may transmit a preamble using the timing offset via the PRACH resource. The base station may receive the preamble and send a random access response (RAR) that includes, for example, a TA command. The WTRU may receive the RAR including the TA command and combine the timing offset with the TA command to determine an actual TA, after which the WTRU may use the actual TA for uplink transmissions.

公开(公告)号：EP4329390A2

公开(公告)日：2024-02-28

申请号：EP23202304.4

申请日：2019-04-03

申请人： InterDigital Patent Holdings, Inc.

发明人： MAHALINGAM, Nagi ,  BALASUBRAMANIAN, Anantharaman ,  BELURI, Mihaela C. ,  PRAGADA, Ravikumar V. ,  TAHERZADEH BOROUJENI, Mahmoud ,  NAYEB NAZAR, Shahrokh ,  HOSSEINIAN, Seyed Mohsen ,  LA SITA, Frank

IPC分类号： H04W56/00

摘要： Methods, systems, and devices for addressing timing advance (TA) in non-terrestrial network communication is disclosed herein. A wireless transmit and receive unit (WTRU) may receive system information from a base station attached to an airborne or spaceborne vehicle that indicates a physical random access channel (PRACH) resource. The WTRU may determine a timing offset based on a plurality of information, such as the location information and the system information. The WTRU may transmit a preamble using the timing offset via the PRACH resource. The base station may receive the preamble and send a random access response (RAR) that includes, for example, a TA command. The WTRU may receive the RAR including the TA command and combine the timing offset with the TA command to determine an actual TA, after which the WTRU may use the actual TA for uplink transmissions.

公开(公告)号：EP3379755A1

公开(公告)日：2018-09-26

申请号：EP18165915.2

申请日：2012-06-14

申请人： Interdigital Patent Holdings, Inc.

发明人： FREDA, Martino M. ,  BELURI, Mihaela C. ,  GAUVREAU, Jean-Louis

IPC分类号： H04L1/18 ,  H04L5/00 ,  H04W72/04

CPC分类号： H04W72/042 ,  H04L1/18 ,  H04L5/0055 ,  H04L5/0092

摘要： Systems, methods, and instrumentalities are disclosed to provide feedback to a user equipment (UE). A UE may transmit uplink data via a supplementary cell. A network device, such as a HeNB, eNB, etc., may receive the uplink data from the UE via the supplementary cell. The network device may send feedback associated with the uplink data to the UE via a physical downlink shared channel (PDSCH) when downlink data is available for transmission to the UE. The feedback may be physical hybrid ARQ indicator channel (PHICH) ACK/NACK information. The feedback sent via the PDSCH may be multiplexed with the downlink data. The network device may send the feedback associated with the uplink data to the UE via a physical downlink control channel (PDCCH) when downlink data is not available for transmission to the UE.

公开(公告)号：EP2553860B1

公开(公告)日：2016-06-01

申请号：EP11716687.6

申请日：2011-04-01

申请人： InterDigital Patent Holdings, Inc.

发明人： KOO, Chang-Soo ,  WANG, Peter S. ,  SHIN, Sung-Hyuk ,  HAIM, John W. ,  DICK, Stephen G. ,  BELURI, Mihaela C. ,  STERN-BERKOWITZ, Janet A,

IPC分类号： H04L5/00

CPC分类号： H04W52/325 ,  H04L5/0048 ,  H04L27/2613

摘要： Methods and apparatus for sounding reference signals (SRS) configuration and transmission. The methods include receiving configuration of wireless transmit/receive unit (WTRU) -specific SRS subframes for transmitting SRS and upon receipt of a trigger, transmitting the SRS for a number of antennas. The SRS transmissions may occur in each subframe of a duration of WTRU-specific SRS subframes that start a number of WTRU-specific SRS subframes after a triggering subframe. For multiple SRS transmissions from multiple antennas, cyclic shift multiplexing and different transmission combs may be used. The cyclic shift for an antenna may be determined from a cyclic shift reference value. The cyclic shift determined for each antenna providing a maximum distance between cyclic shifts for the antennas transmitting SRS in a same WTRU-specific subframe. SRS transmissions from multiple antennas in the WTRU-specific subframe may be done in parallel. Methods for handling collisions between SRS and physical channels are presented.

公开(公告)号：EP2949141A2

公开(公告)日：2015-12-02

申请号：EP14704467.1

申请日：2014-01-28

申请人： Interdigital Patent Holdings, Inc.

发明人： FREDA, Martino M. ,  GAUVREAU, Jean-Louis ,  BELURI, Mihaela C. ,  LAUGHLIN, Scott ,  OJANEN, Pekka ,  CHINCHOLI, Amith V.

IPC分类号： H04W16/14

CPC分类号： H04W16/14 ,  H04L5/0064 ,  H04L5/0073

摘要： Methods and apparatus for spectrum coordination are described. A method of spectrum coordination includes a spectrum coordinator receiving a request for shared spectrum from a CRS that the spectrum coordinator supports. The request includes at least one minimum protection requirement. The spectrum coordinator determines protection criteria for the CRS based on the at least one minimum protection requirement received from the CRS. The spectrum coordinator sends the protection criteria for the CRS to a geo-location database for use in assigning shared spectrum to other CRSs that the spectrum coordinator does not support.

公开(公告)号：EP4383589A3

公开(公告)日：2024-09-04

申请号：EP24157347.6

申请日：2016-11-10

申请人： InterDigital Patent Holdings, Inc.

发明人： LEE, Moon-il ,  DEENOO, Yugeswar ,  DENG, Tao ,  STERN-BERKOWITZ, Janet A. ,  PRAGADA, Ravikumar V ,  BELURI, Mihaela C.

IPC分类号： H04L5/00 ,  H04B7/0408 ,  H04B7/06 ,  H04B7/08

CPC分类号： H04L5/0014 ,  H04L5/0044 ,  H04L5/0053 ,  H04B7/0408 ,  H04B7/0628 ,  H04B7/086

摘要： A wireless transmit/receive unit (WTRU) configured to perform wireless communications in higher frequency bands (e.g., above 6 GHz) using a fallback scheme is provided. The WTRU includes a receiver configured to receive, in a time transmission interval (TTI), at least one control signal and a first data signal using a first beam associated with a first beam identifier (ID) and a second data signal, subsequent to the first data signal, using a second beam associated with a second beam ID different from the first beam ID, such that one of the at least one control signal indicates the second beam ID; and a processor configured to switch a receive beam of the receiver from the first beam to the second beam based on the second beam ID to receive the second data signal.

公开(公告)号：EP4404479A2

公开(公告)日：2024-07-24

申请号：EP24179169.8

申请日：2019-04-03

申请人： InterDigital Patent Holdings, Inc.

发明人： BALASUBRAMANIAN, Anantharaman ,  MAHALINGAM, Nagi ,  BELURI, Mihaela C. ,  PRAGADA, Ravikumar V.

IPC分类号： H04B7/185

CPC分类号： H04B7/18513 ,  H04L1/1819 ,  H04L1/1822 ,  H04L1/1825 ,  H04L1/1845 ,  H04L1/1864 ,  H04L1/1896

摘要： A method for use in a wireless communication device, the method comprising receiving feedback regarding channel quality; dynamically adjusting a number of redundancy version (RV) bundles associated with at least one HARQ process per transmission time interval (TTI).

公开(公告)号：EP2673972A2

公开(公告)日：2013-12-18

申请号：EP12705549.9

申请日：2012-02-07

申请人： Interdigital Patent Holdings, Inc.

发明人： GAUVREAU, Jean-Louis ,  FREDA, Martino M. ,  LIN, Zinan ,  MURRAY, Joseph M. ,  YE, Chunxuan ,  BALA, Erdem ,  BELURI, Mihaela C. ,  CASTOR, Douglas R. ,  CHINCHOLI, Amith V. ,  CUFFARO, Angelo A. ,  DAI, Yuying ,  DEMIR, Alpaslan ,  GREDONE, Joseph W. ,  YANG, Rui ,  MA, Liangping ,  DIGIROLAMO, Rocco ,  TOUAG, Athmane ,  PURKAYASTHA, Debashish

IPC分类号： H04W16/24

CPC分类号： H04L1/1893 ,  H04L1/1812 ,  H04L1/1861 ,  H04L5/0032 ,  H04L5/0055 ,  H04L5/06 ,  H04L5/14 ,  H04L5/143 ,  H04L5/1469 ,  H04W16/14 ,  H04W16/24 ,  H04W28/16 ,  H04W72/0453 ,  H04W72/082

摘要： A method and apparatus for operating supplementary cells in licensed exempt (LE) spectrum. An aggregating cell operating in a frequency division duplex (FDD) licensed spectrum is aggregated with a LE supplementary cell operating in a time sharing mode for uplink (UL) and downlink (DL) operations. The LE supplementary cell may be an FDD supplementary cell dynamically configurable between an UL only mode, a DL only mode, and a shared mode, to match requested UL and DL traffic ratios. The LE supplementary cell may be a time division duplex (TDD) supplementary cell. The TDD supplementary cell may be dynamically configurable between multiple TDD configurations. A coexistence capability for coordinating operations between the LE supplementary cell with other systems operating in the same channel is provided. Coexistence gaps are provided to measure primary/secondary user usage and permit other systems operating in the LE supplementary cell channel to access the channel.