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.

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.

公开(公告)号：US12133255B2

公开(公告)日：2024-10-29

申请号：US17610404

申请日：2020-05-16

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Hussain Elkotby ,  Anantharaman Balasubramanian ,  Marian Rudolf ,  Tanbir Haque ,  Patrick Cabrol ,  Ravikumar Pragada

IPC: H04W74/00 ,  H02J50/00 ,  H02J50/20 ,  H02J50/40 ,  H04L47/26 ,  H04W28/02

CPC classification number: H04W74/004 ,  H02J50/001 ,  H02J50/20 ,  H02J50/40 ,  H04L47/26 ,  H04W28/0221

Abstract: A method implemented in a wireless transmit/receive unit (WTRU) for wireless communications includes receiving a signal sequence from a base station (BS) and generating a channel quality indicator (CQI) indication based on the signal, transmitting the CQI indication to the BS, receiving a first control message from the BS comprising configuration information, wherein the configuration information includes information elements for configuring CQI subgroups, determining a CQI subgroup identifier (ID) based on the information elements included in the received first control message, and transmitting an energy harvesting feedback using at least one resource associated with the CQI subgroup ID.

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

IPC: G08G5/00 ,  B64C39/02 ,  B64U30/20 ,  B64U101/00 ,  G01C21/12 ,  H01Q1/28

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.

公开(公告)号：US11917634B2

公开(公告)日：2024-02-27

申请号：US17414930

申请日：2019-12-17

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Anantharaman Balasubramanian ,  Tanbir Haque ,  Ravikumar Pragada ,  Hussain Elkotby ,  Patrick Cabrol ,  Marian Rudolf

IPC: H04W72/23 ,  H02J50/80 ,  H02J50/20 ,  H02J50/00 ,  H04J11/00

CPC classification number: H04W72/23 ,  H02J50/001 ,  H02J50/20 ,  H02J50/80 ,  H04J11/003 ,  H04J11/004

Abstract: A base transmission signal and an auxiliary transmission signal may be used to (e.g., concurrently) improve a harvesting efficiency of an energy receiver while maintaining a prespecified performance level of an information receiver. An auxiliary transmission signal may be constructed. The construction of the auxiliary transmission signal may be signaled. An auxiliary transmission signal may be adapted. The adaptation of the auxiliary transmission signal may be signaled. An impact of auxiliary transmission signals on an information receiver's performance may be mitigated. One or more narrowband energy harvesting (EH) signals may be used, for example to provide a high peak to average power ratio (PARR) for EH devices (e.g., without significantly impacting overall transmitted signal PARR) characteristics. One or more narrowband auxiliary signals may be used, for example to enhance the PARR characteristics of an information signal sub-band.

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.

Inventor： Anantharaman Balasubramanian ,  Nagi Mahalingam ,  Mihaela C. Beluri ,  Ravikumar V. Pragada

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.

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

IPC: H04W36/32 ,  H04W36/00 ,  H04W72/51

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.

公开(公告)号：US11470553B2

公开(公告)日：2022-10-11

申请号：US16768129

申请日：2018-11-30

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Tanbir Haque ,  Ravikumar V. Pragada ,  Anantharaman Balasubramanian ,  Alpaslan Demir

IPC: H04W52/02 ,  H04W76/28

Abstract: A wireless transmit/receive unit (WTRU) may include one or more antennas and a first transceiver operatively coupled to the antennas. The one or more antennas and the first transceiver may be configured to receive a first signal from a network using zero energy from the WTRU. The one or more antennas and the first transceiver may be further configured to extract energy from the first signal. The first transceiver may be further configured to examine a separation between energy threshold events to decode an energy signature of the first signal. The first transceiver may be further configured to activate a second transceiver operatively coupled to the one or more antennas if the decoded energy signature matches a stored energy signature, wherein the second transceiver is powered by the WTRU. The one or more antennas and the second transceiver may be configured to receive a second signal from the network.

公开(公告)号：US20210006945A1

公开(公告)日：2021-01-07

申请号：US17026719

申请日：2020-09-21

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Anantharaman Balasubramanian ,  Ravikumar Pragada

IPC: H04W4/06 ,  H04W4/08 ,  H04W72/00 ,  H04W4/40 ,  H04B7/185

Abstract: Systems, methods, and instrumentalities are disclosed for processing a multi-level transmission sent on a common set of resources using superposition coding, comprising determining a first group radio network temporary identifier (GRNTI), wherein the GRNTI is associated with a broadcast transmission to a plurality of wireless transmit/receive units (WTRUs), determining a second GRNTI, wherein the second GRNTI is associated with a transmission to a subset of the plurality of WTRUs that received the first GRNTI, receiving the multi-level transmission, wherein the multi-level transmission comprises a first level message and a second level message, decoding the first level message from the multi-level transmission using the first GRNTI and preconfigured control information, and decoding the second level message from the multi-level transmission using the second GRNTI.

公开(公告)号：US20250088964A1

公开(公告)日：2025-03-13

申请号：US18958456

申请日：2024-11-25

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC: H04W52/02

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.