Patents by Inventor Ravikumar Pragada
Ravikumar Pragada has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240365361Abstract: A method performed by a transmitting, Tx, WTRU performing sidelink, SL, communications with a receiving, Rx, WTRU, includes sending a periodic SL resource allocation request to a base station, BS, including directional information comprising a direction of transmission to the Rx WTRU, receiving configuration information of multiple sets of periodic time-frequency, T-F, resources for SL communication with the Rx WTRU, the configuration information including an indication of a first set of the multiple sets of T-F resources to use for SL communication with the Rx WTRU, and transmitting on SL to the Rx WTRU using the first set of T-F resources using the direction of transmission to the Rx WTRU.Type: ApplicationFiled: August 23, 2022Publication date: October 31, 2024Inventors: Umer SALIM, Sanjay GOYAL, Ravikumar PRAGADA
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Patent number: 12133255Abstract: 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.Type: GrantFiled: May 16, 2020Date of Patent: October 29, 2024Assignee: InterDigital Patent Holdings, Inc.Inventors: Hussain Elkotby, Anantharaman Balasubramanian, Marian Rudolf, Tanbir Haque, Patrick Cabrol, Ravikumar Pragada
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Patent number: 12107711Abstract: A wireless transmit/receive unit, WTRU, can select a constellation from a set of constellations corresponding to a symbol configuration for indirect carrier modulation, ICM, based on at least one constellation performance efficacy indicator, each constellation performance efficacy indicator respectively corresponding to a constellation of the set of constellations, and use the selected constellation and symbol configuration to simultaneously harvest energy and transmit data.Type: GrantFiled: January 22, 2021Date of Patent: October 1, 2024Assignee: INTERDIGITAL PATENT HOLDINGS, INC.Inventors: Tanbir Haque, Hussain Elkotby, Patrick Cabrol, Ravikumar Pragada
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Publication number: 20240284401Abstract: A method and configurations are discussed relative to a wireless transmit/receive unit (WTRU) in the form of a multi subscriber identity module (MUSIM). The paging information for the WTRU may be optimized for power consumption. The paging information may be modified to provide one or more of a maximum deep sleeping time duration requirement, a minimum number of power state transitions, and minimum power penalty associated with power state transitions. The modified paging information may set a paging occasion offset windows and a time direction indication associated therewith.Type: ApplicationFiled: August 3, 2022Publication date: August 22, 2024Applicant: InterDigital Patent Holdings, Inc.Inventors: Hussain Elkotby, Ali Esswie, Ravikumar Pragada
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Publication number: 20240284456Abstract: Procedures, methods, architectures, apparatuses, systems, devices, and computer program products related to a Wireless Transmit-Receive Unit (WTRU) operating in a network, for supporting paging using an Ultra-Low Power (ULP) receiver, are disclosed. A WTRU may receive a ULP-specific configuration, and may activate the ULP receiver, and inactivate the Uu receiver, when support of ULP paging operation, by the network, is determined. The ULP receiver may detect a Low-Power Wake-Up Signal (LP-WUS) and may activate the Uu receiver and perform PDCCH monitoring. Under condition that the WTRU detects, in the channel monitoring, its identifier in a paging message received via the Uu receiver, the WTRU initiates a connection establishment or a connection resume procedure.Type: ApplicationFiled: June 14, 2022Publication date: August 22, 2024Inventors: Hussain Elkotby, Keiichi Kubota, Ali Esswie, Virgile Garcia, Ravikumar Pragada
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Publication number: 20240259159Abstract: A method and WTRU to support an in-channel narrowband companion air interface (NB-CAI) assisted wideband (WB) frequency error correction procedure is disclosed. The method may comprise a WTRU sending, via the NB-CAI, a frequency convergence reference signal (FCRS) scheduling request to a network node and receiving, via the NB-CAI, a FCRS scheduling response from the network node. The method may comprise receiving, via a wideband air interface (WB-AI), periodic FCRSs from the network node based on the received FCRS scheduling response and sending, via the NB-CAI, a request to the network node to change a rate of FCRS transmissions. The FCRS scheduling request may comprise range information. The request to change a rate of FCRS transmissions may be based on a convergence indication. The request to change a rate of FCRS transmissions may comprise a configuration identification of a selected FCRS configuration from a set of FCRS configurations.Type: ApplicationFiled: May 19, 2022Publication date: August 1, 2024Applicant: INTERDIGITAL PATENT HOLDINGS, INC.Inventors: Alpaslan Demir, Sanjay Goyal, Patrick Cabrol, Muhammad Fazili, Tanbir Haque, Ravikumar Pragada
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Publication number: 20240251453Abstract: Method, apparatus and systems are disclosed. In one representative embodiment, a method may be implemented by a wireless transmit/receive unit (WTRU) for communication via a network access point (NAP). The method may include the WTRU receiving from the NAP a set of preambles and corresponding propagation delay related thresholds and determining propagation delay related information associated with a distance between the WTRU and the NAP or a location in a coverage of the NAP. The method may further include selecting a subset of preambles from the set of preambles based on the determined propagation delay related information, randomly selecting a preamble from the selected subset of preambles, and sending the randomly selected preamble to the NAP.Type: ApplicationFiled: March 12, 2024Publication date: July 25, 2024Inventors: Nagi MAHALINGAM, Anantharaman BALASUBRAMANIAN, Ravikumar PRAGADA, Faris ALFARHAN, Yugeswar DEENOO
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Publication number: 20240244581Abstract: Procedures, methods, architectures, apparatuses, systems, devices, and computer program products directed to low-power proximity-based service paging for multi-carrier side-link (SL) communications are described. A first wireless transmit and receive unit (WTRU) may receive, from a second WTRU a request message indicating a set of SL monitoring occasions to be monitored, wherein the set of SL monitoring occasions may be associated with a SL service. The first WTRU may receive one or more transmissions indicating whether the second WTRU is being paged for the SL service. On a condition that the second WTRU is being paged for the SL service, the first WTRU may receive one or more SL messages associated with the SL service and directed to the second WTRU. The first WTRU may transmit to the second WTRU, SL paging information indicating availability of the received one or more SL messages.Type: ApplicationFiled: May 6, 2022Publication date: July 18, 2024Inventors: Ali Esswie, Hussain Elkotby, Ravikumar Pragada
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Publication number: 20240236739Abstract: Systems, methods, and instrumentalities are described herein for idle mode mobility in an ultra-low power (ULP) system. Idle mode mobility in a ULP system may support energy efficient downlink signaling. An association may be identified between a Uu cell and a ULP cell. Switching between Uu cells may limit power savings gains from ULP receivers. Enabling switching between ULP cells without switching between Uu cells may help maintain the power savings gains from ULP receivers. A wireless transmit/receive unit may be configured to perform ULP cell reselection, for example, without triggering Uu cell reselection (e.g., to maintain power savings gains).Type: ApplicationFiled: May 17, 2022Publication date: July 11, 2024Applicant: InterDigital Patent Holdings, Inc.Inventors: Keiichi Kubota, Hussain Elkotby, Ravikumar Pragada
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Publication number: 20240236941Abstract: Procedures, methods, architectures, apparatuses, systems, devices, and computer program products are disclosed that may be implemented in a wireless transmit/receive unit (WTRU), such as where the WTRU is in an inactive and/or idle (e.g., RRC) state. In one representative method, the WTRU may receive a downlink (DL) small data transmission (SDT) indication with respect to a paging occasion. The WTRU may receive the indicated DL SDT payload which may be multiplexed with a paging record for the paging occasion and/or with one or more configured DL SDT PDSCH resources. Hybrid automatic repeat request (HARQ) feedback information for the DL SDT payload may be transmitted using configured PUCCH resources and/or may be multiplexed with a random access channel (RACH) procedure. The DL SDT payload may be received by the WTRU without transitioning to a connected (e.g., RRC) state.Type: ApplicationFiled: March 7, 2022Publication date: July 11, 2024Inventors: Ali Esswie, Hussain Elkotby, Ravikumar Pragada
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Publication number: 20240215067Abstract: Methods, apparatuses, systems, etc., directed to random channel access over zero energy (ZE) air-interface(s) are disclosed herein. In an embodiment, a wireless transmit/receive unit (WTRU) may receive a first reference signal. For example, the WTRU may determine that a first signal strength of the received first reference signal may fail to satisfy a strength condition, and responsively the WTRU may: (i) receive a transmission, (ii) determine a sequence and an occasion based on the received transmission, (iii) transmit using the determined sequence on the determined occasion, and (iv) receive a second reference signal from an interrogating WTRU.Type: ApplicationFiled: February 1, 2022Publication date: June 27, 2024Inventors: Hussain Elkotby, Ravikumar Pragada, Tanbir Haque, Patrick Cabrol
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Publication number: 20240188107Abstract: The disclosure generally pertains to methods and apparatus for on-demand low-power sidelink channel reservation acquisition in wireless communication systems. A WTRU may determine to request on-demand reports related to sidelink resource usage. A WTRU that receives the report may generate a report based on its knowledge of sidelink resource usage. The responding WTRU may determine a priority associated with the report based on the relative amount of information it has regarding the sidelink resource usage. A response window for the response may be determined based on the priority. The responding WTRU then transmits the report in the corresponding response window. If a collision is detected for the report transmission, the response window may be extended and the report may be retransmitted in the extended response window.Type: ApplicationFiled: May 6, 2022Publication date: June 6, 2024Applicants: IDAC HOLDINGS, INC.Inventors: Hussain Elkotby, Ali Esswie, Ravikumar Pragada
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Publication number: 20240147370Abstract: Methods and apparatuses are described herein for chained and delayed wake-up. For example, a station (STA) may determine, at the formation of a group of STAs, a common service period for the group. The STA may determine a deferral time for a first STA of the group. The deferral time may indicate when the first STA wakes up to receive a wake-up packet. The STA may receive, from an access point (AP), during a service period in which the STA acts as a head node for communication with the AP, a wake-up packet addressed to the first STA. The STA may transmit, based on a determination that the deferral time associated with the wake-up packet addressed to the first STA ends after the service period in which the STA acts as a head node, a wake-up command that includes the wake-up packet addressed to the first STA.Type: ApplicationFiled: February 8, 2022Publication date: May 2, 2024Applicant: INTERDIGITAL PATENT HOLDINGS, INC.Inventors: Nagi Mahalingam, Ravikumar Pragada, Hussain Elkotby, Tanbir Haque
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Publication number: 20240113566Abstract: The disclosure pertains to methods and apparatus for operation by a wireless transmit/receive unit (WTRU).Type: ApplicationFiled: December 9, 2021Publication date: April 4, 2024Inventors: Patrick Cabrol, Tanbir Haque, Hussain Elkotby, Ravikumar Pragada
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Publication number: 20240114456Abstract: Methods and apparatus for targeted wake-up and frame enhancement for energy harvesting are disclosed. In one embodiment, a method performed by a station (STA) may compromise: receiving, during an energy detection state, a zero energy (ZE) frame from an access point (AP) that indicates a presence of an energy harvesting (EH) window; harvesting energy for a determined time duration during the EH window; and receiving, during an information decoding state, a data portion of the ZE frame based on a current stored energy of the STA being above a first threshold and a signal strength of the received ZE frame being above a second threshold.Type: ApplicationFiled: February 8, 2022Publication date: April 4, 2024Applicant: INTERDIGITAL PATENT HOLDINGS, INC.Inventors: Nagi Mahalingam, Hussain Elkotby, Ravikumar Pragada, Tanbir Haque, Vikas Gulati
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Publication number: 20240106532Abstract: Systems, methods, and devices for wireless transmissions based on backscattering. A backscatter indication message (BID) is received from an access point (AP). An interrogation signal is received. Uplink data is transmitted to the AP based on the BID and the interrogation signal. In some implementations, the interrogation signal is received from the AP. In some implementations, the BID indicates a backscatter duration, and the uplink data is transmitted to the AP for the backscatter duration. In some implementations, the uplink data is transmitted to the AP concurrently with receiving the interrogation signal. In some implementations, energy is harvested from the interrogation signal. In some implementations, the uplink data is transmitted to the AP subsequent to the interrogation signal, based on the energy harvested from the interrogation signal. In some implementations, the interrogation signal includes a compensation signal based on channel conditions and/or based on backscattering from the WTRU.Type: ApplicationFiled: February 8, 2022Publication date: March 28, 2024Applicant: INTERDIGITAL PATENT HOLDINGS, INC.Inventors: Nagi Mahalingam, Ravikumar Pragada, Tanbir Haque, Hussain Elkotby
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Patent number: 11917634Abstract: 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.Type: GrantFiled: December 17, 2019Date of Patent: February 27, 2024Assignee: InterDigital Patent Holdings, Inc.Inventors: Anantharaman Balasubramanian, Tanbir Haque, Ravikumar Pragada, Hussain Elkotby, Patrick Cabrol, Marian Rudolf
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Publication number: 20240064818Abstract: Methods, systems, and devices for in-channel narrow-band (NB) companion air interface (CAI) assisted wideband (WB) random access channel (RACH) access. Periodic NB downlink (DL) synchronization sequences are detected. Range information is estimated by measuring the periodic NB DL synchronization sequences; and determining an NB CAI RACH occasion. The range information is transmitted to a gNode B (gNB), or other base station, in a NB CAI RACH procedure. At least one selected WB sequence based on the range information and at least one scheduled WB RACH occasion based on the NB CAI RACH occasion are received from the gNB. A contention free WB RACH procedure is performed based on the received at least one selected WB sequence and the at least one scheduled WB RACH occasion.Type: ApplicationFiled: December 16, 2021Publication date: February 22, 2024Applicant: INTERDIGITAL PATENT HOLDINGS, INC.Inventors: Alpaslan Demir, Sanjay Goyal, Hussain Elkotby, Tanbir Haque, Ravikumar Pragada, Patrick Cabrol, Mihaela Beluri
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Publication number: 20240048283Abstract: 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.Type: ApplicationFiled: October 23, 2023Publication date: February 8, 2024Applicant: InterDigital Patent Holdings, Inc.Inventors: Anantharaman Balasubramanian, Nagi Mahalingam, Mihaela C. Beluri, Ravikumar Pragada
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Publication number: 20240007168Abstract: An Evanescent Cell (EC) refers to a WTRU-centric cell exploiting highly directional transmissions. An EC may comprise one or more beams from one or more BSs/gNBs/TRPs that may be operated by the same or different operators. An EC may be created utilizing knowledge of radio planning having detected the presence of one or more WTRU. A Beam-Group (BG) refers to a group of beams associated with an EC. All beams associated with an EC may be categorized into multiple BGs. Each BG may be made up of one or more beams from multiple BSs/gNBs/TRPs. Multiple BGs within an EC may be enabled to ease the burden of cell management. In one or more embodiments, there may be systems, procedures, and/or devices for EC/BG detection, deactivation, activation, selection, reselection, and augmentation. Further, there may be one or more embodiments for hierarchical system information acquisition as they relate to ECs/BGs.Type: ApplicationFiled: December 16, 2021Publication date: January 4, 2024Applicant: InterDigital Patent Holdings, Inc.Inventors: Sanjay Goyal, Ravikumar Pragada, Hussain Elkotby, Tanbir Haque, Demir Alpaslan, Patrick Cabrol, Mihaela Beluri