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公开(公告)号：US12301326B2
公开(公告)日：2025-05-13
申请号：US17751356
申请日：2022-05-23
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor： Yugeswar Deenoo , Tao Deng , Janet A. Stern-Berkowitz , Moon-il Lee , Mihaela C. Beluri , Ravikumar V. Pragada
Abstract: Methods and apparatus are described. A method, implemented in a wireless transmit/receive unit (WTRU) includes monitoring a first control channel search space (SS) associated with a first normal beam set comprising a first beam set. The WTRU initiates extended monitoring and monitors, subsequent to a trigger based on a measurement by the WTRU, a control channel SS associated with an extended beam set comprising the first beam set and one or more additional beam sets. The WTRU determines a second beam set from the extended beam set. The determination is based on a received control channel beam switch command or based on a control channel SS in which a beam switch command is received. The WTRU monitors a second control channel SS associated with a second normal beam set comprising the determined second beam set.
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公开(公告)号：US12284532B2
公开(公告)日：2025-04-22
申请号：US17635209
申请日：2020-08-14
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor： Kevin T. Wanuga , Sanjay Goyal , Arnab Roy , Onur Sahin , Alpaslan Demir , Ravikumar V. Pragada , Mihaela C. Beluri
Abstract: Methods and apparatuses for receive (Rx) beam selection are described herein. A wireless transmit/receive unit (WTRU) may be configured to receive, from a base station (BS), configuration information for joint communication and sensing (JCS) reference signals. The configuration information may include resources for reference signal transmission and resources for measurement reporting. The WTRU may be further configured to receive, from the BS, an indication to activate a subset of the resources for JCS reference signal transmission. The WTRU may be further configured to transmit, a plurality of JCS reference signals using the activated subset of resources for reference signal transmission. The WTRU may be further configured to measure, via a plurality of Rx beams, a backscatter power associated with each of the transmitted plurality of JCS reference signals. The WTRU may be further configured to calculate beam blockage statistics based on the measured backscatter power.
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公开(公告)号：US12273839B2
公开(公告)日：2025-04-08
申请号：US18770114
申请日：2024-07-11
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor： Nagi Mahalingam , Anantharaman Balasubramanian , Mihaela Beluri , Ravikumar V. Pragada , Mahmoud Taherzadeh Boroujeni , Shahrokh Nayeb Nazar , Seyed Mohsen Hosseinian , Frank La Sita
IPC: H04W56/00 , H04B7/185 , H04W74/08 , H04W74/0833
Abstract: 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.
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公开(公告)号：US12250567B2
公开(公告)日：2025-03-11
申请号：US17635209
申请日：2020-08-14
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor： Kevin T. Wanuga , Sanjay Goyal , Arnab Roy , Onur Sahin , Alpaslan Demir , Ravikumar V. Pragada , Mihaela C. Beluri
Abstract: Methods and apparatuses for receive (Rx) beam selection are described herein. A wireless transmit/receive unit (WTRU) may be configured to receive, from a base station (BS), configuration information for joint communication and sensing (JCS) reference signals. The configuration information may include resources for reference signal transmission and resources for measurement reporting. The WTRU may be further configured to receive, from the BS, an indication to activate a subset of the resources for JCS reference signal transmission. The WTRU may be further configured to transmit, a plurality of JCS reference signals using the activated subset of resources for reference signal transmission. The WTRU may be further configured to measure, via a plurality of Rx beams, a backscatter power associated with each of the transmitted plurality of JCS reference signals. The WTRU may be further configured to calculate beam blockage statistics based on the measured backscatter power.
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公开(公告)号：US12219601B2
公开(公告)日：2025-02-04
申请号：US18508027
申请日：2023-11-13
Applicant: InterDigital Patent Holdings, Inc.
Inventor： Anantharaman Balasubramanian , Ravikumar V. Pragada , Nagi Mahalingam
IPC: H04W4/00 , H04L1/1607 , H04L5/00 , H04W4/08 , H04W72/23 , H04W74/0808 , B64U101/64 , H04W92/18
Abstract: A wireless transmit/receive unit (WTRU) may receive a downlink communication from a network over a first interface transmitted to one or more WTRUs in a group of WTRUs. The WTRU may determine an access class of the WTRU based on a packet loss percentage of the downlink communication. The access class may be associated with a contention window for accessing a second interface. The WTRU may transmit packet loss information to the one or more WTRUs over the second interface in the contention window. The WTRU may receive packet loss feedback from the one or more WTRUs over the second interface. The WTRU may determine that the access class of the WTRU is a highest class of the one or more WTRUs. The WTRU may transmit a single groupcast negative acknowledgement (gNACK) to the network on behalf of the one or more WTRUs over the first interface.
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Patent Agency Ranking
公开(公告)号：US20240414622A1
公开(公告)日：2024-12-12
申请号：US18812681
申请日：2024-08-22
Applicant: InterDigital Patent Holdings, Inc.
Inventor： Carl Wang , Yingxue K. Li , Onur Sahin , Philip J. Pietraski , Ravikumar V. Pragada , Gregg A. Charlton
Abstract: Methods and apparatuses are provided herein. A method may include receiving, from a first network node, configuration information to establish a link to a second network node. The first network node may use a first radio access technology (RAT) and the second network node may use a second RAT. The configuration information may include timing information associated with a first one of a plurality of beams of the second network node. The method may include measuring the first one of the plurality of beams of the second network node based on the timing information. The method may include selecting a beam of the plurality of beams of the second network node based on the measurement. The method may include sending a transmission to at least the first network node. The transmission may be an indication the WTRU is configured to establish the link to the second network node.
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公开(公告)号：US20240146598A1
公开(公告)日：2024-05-02
申请号：US18545663
申请日：2023-12-19
Applicant: InterDigital Patent Holdings, Inc.
Inventor： Tao Deng , Steven Ferrante , Ravikumar V. Pragada , Yugeswar Deenoo , Daniel R. Cohen , Janet A. Stem-Berkowitz , Moon-il Lee , Mihaela C. Beluri
CPC classification number: H04L27/2673 , H04B7/0695 , H04B7/088 , H04W48/12 , H04W48/16 , H04W56/001 , H04B7/0617 , H04L27/2666
Abstract: A method performed by a wireless transmit/receive unit (WTRU) may include receiving a configuration message including timing information for monitoring at least a subset of a plurality of beams to receive a set of synchronization signals and receiving the set of synchronization signals based on the timing information. The received set of synchronization signals include a primary synchronization signal and a secondary synchronization signal. The method may include receiving a reference signal along with a physical broadcast channel (PBCH) transmission. The reference signal comprises a sequence that is derived from an index associated with one of the at least the subset of beams and associated with the received set of synchronization signals. The method may include transmitting a random access channel (RACH) transmission. The RACH transmission includes a preamble sequence corresponding to the one of the subset of the plurality of beams.
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公开(公告)号：US11961405B2
公开(公告)日：2024-04-16
申请号：US16756723
申请日：2018-10-16
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor： Jun Li , Nagi Mahalingam , Anantharaman Balasubramanian , Ravikumar V. Pragada , Michel Roy
CPC classification number: G08G5/0013 , B64C39/024 , G01C21/12 , G08G5/0026 , G08G5/003 , G08G5/0034 , G08G5/006 , G08G5/0069 , G08G5/0082 , H01Q1/28 , B64U30/20 , B64U2101/00
Abstract: An unmanned aerial system (UAS) may execute a mission planned by a UAS traffic management (UTM) system. The UAS may receive a mission planning response message from the UTM that includes a mission route for the UAS to navigate and a configuration of one or more trigger events. The mission route may be made up of a sequence of waypoints in an airspace. Each of the waypoints may be configured with a dynamic path conforming profile (PCP) a dynamic required navigation performance (RNP) value. The UAS may monitor at least the RNP value in one or more time intervals to determine if a trigger event occurs. The UAS may transmit a path conformance status report to the UTM upon determining that a trigger event of the one or more trigger events occurred. The path conformance status report may indicate conformance to one or more parameters specified in the PCP.
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公开(公告)号：US11838129B2
公开(公告)日：2023-12-05
申请号：US17044987
申请日：2019-04-03
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
IPC: H04L1/1812 , H04L1/1822 , H04L1/1825 , H04L1/1829 , H04L1/1867
CPC classification number: H04L1/1819 , H04L1/1822 , H04L1/1825 , H04L1/1845 , H04L1/1864 , H04L1/1896
Abstract: Methods and apparatuses are described herein for providing Hybrid Automatic Repeat Request (HARQ) techniques for a non-terrestrial network. For example, a wireless transmit/receive unit (WTRU) may transmit, to a satellite base station (BS), uplink (UL) feedback that includes configuration information for redundancy versions (RVs) and cross redundancy versions (cRVs). The WTRU may receive one or more first RVs associated with a first transport block (TB). The WTRU may receive one or more second RVs associated with a second TB and at least one cross redundancy version (cRV) associated with the first TB and second TB. The cRV may include parity bits generated from both the first TB and second TB. If at least one of the first TB or the second TB is unsuccessfully decoded, the WTRU may decode the first TB and second TB jointly based on the at least one cRV.
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公开(公告)号：US11765637B2
公开(公告)日：2023-09-19
申请号：US16482887
申请日：2018-02-01
Applicant: InterDigital Patent Holdings, Inc.
Inventor： Ravikumar V. Pragada , Anantharaman Balasubramanian , Tanbir Haque
CPC classification number: H04W36/32 , H04W36/0072 , H04W72/51
Abstract: Systems, methods, and instrumentalities are disclosed for a wireless transmit/receive unit (WTRU) configured to receive a configuration defining a dedicated radio resource assignment for a travel path, wherein the dedicated radio resource assignment comprises dedicated resources assigned to the WTRU in a plurality of cells and specifies a time interval when the resources will be dedicated to the WTRU in each of the plurality of cells; determine a first time has been reached and utilize dedicated resources in a first cell based on reaching the first time; and determine a second time has been reached and utilize dedicated resources in a second cell based on reaching the second time.
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