Patents by Inventor Mihaela C. Beluri
Mihaela C. Beluri 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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Patent number: 11382136Abstract: Methods, devices and systems are provided for performing a random access (RA) procedure. A wireless transmit/receive unit (WTRU) may be configured to receive RA resource sets, where each of the RA resource sets is associated with a node-B directional beam, select an RA resource set from among the RA resource sets, and initiate an RA procedure based on the selected RA resource set. The RA procedure may include selecting multiple preambles which include a preamble for each resource of a plurality of resources corresponding to the selected RA resource set. The WTRU may be configured to sequentially transmit the selected multiple preambles in sequential RA transmissions, and may be configured to receive, from a node-B, in response to the RA transmissions, at least one RA response (RAR), where each of the received at least one RAR corresponds to one of the transmitted multiple preambles.Type: GrantFiled: September 25, 2019Date of Patent: July 5, 2022Assignee: IDAC Holdings, Inc.Inventors: Tao Deng, Philip J. Pietraski, Ravikumar V. Pragada, Yugeswar Deenoo, Janet A. Stern-Berkowitz, Moon-il Lee, Mihaela C. Beluri, Kyle Jung-Lin Pan
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Patent number: 11336500Abstract: Methods and apparatus for initial cell search and selection using beamforming are described. An apparatus is configured with multiple receive beams and includes an antenna and a processor. The processor is operatively coupled to the antenna and sweeps a respective one of the multiple receive beams during each of multiple synchronization sub-frames, using a pre-defined sweep time and dwell period, to detect a synchronization signal. The processor also obtains symbol timing information and a synchronization signal index from the detected synchronization signal. The obtained synchronization signal index corresponds to a synchronization signal index of the set. The process decodes a first broadcast channel using the obtained symbol timing information, the obtained synchronization signal index and a predefined or blind-coded symbol distance between the detected synchronization signal and the first broadcast channel.Type: GrantFiled: June 24, 2016Date of Patent: May 17, 2022Assignee: IDAC HOLDINGS, INC.Inventors: Tao Deng, Steven Ferrante, Ravikumar V. Pragada, Yugeswar Deenoo, Daniel R. Cohen, Janet A. Stern-Berkowitz, Moon-il Lee, Mihaela C. Beluri
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Publication number: 20220150887Abstract: A method performed by a wireless transmit/receive unit (WTRU) may include receiving configuration information for reporting a power headroom (PH) associated with each of a plurality of cells, wherein a first cell uses first time intervals each having a first length and a second cell uses second time intervals each having a second length. The method may include transmitting a first uplink transmission using a first carrier frequency associated with the first cell and transmitting, in one of the second time intervals that is fully overlapped by the one of the first time intervals, based on the received configuration information, a report including information indicating a first PH corresponding to the one of the first time intervals and a second PH corresponding to the earliest one in time of the second time intervals that is fully overlapped by the one of the first time intervals.Type: ApplicationFiled: January 26, 2022Publication date: May 12, 2022Applicant: INTERDIGITAL PATENT HOLDINGS, INC.Inventors: Moon-il Lee, Janet A. Stern-Berkowitz, Bala Erdem, Afshin Haghighat, Mihaela C. Beluri
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Publication number: 20220150875Abstract: A wireless transmit/receive unit (WTRU) may receive a first signal including a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). The PSS and SSS may be received in a resource block of a cell and the resource block may have a first numerology. Further, the first numerology may have a first subcarrier spacing, while other resources of the cell at a same time as the resource block may have a second numerology with a different subcarrier spacing than the first numerology. In addition, the WTRU may determine synchronization based on the PSS and SSS. Also, the WTRU may receive a second signal in the cell, and the second signal may have the second numerology. Moreover, the WTRU may transmit user data. In a further example, the WTRU may search a frequency raster for the PSS and the SSS.Type: ApplicationFiled: January 21, 2022Publication date: May 12, 2022Applicant: IDAC HOLDINGS, INC.Inventors: Erdem Bala, Afshin Haghighat, Mihaela C. Beluri, Rui Yang, Ananth Kini, Janet A. Stern-Berkowitz, Alphan Sahin
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Publication number: 20220103237Abstract: A wireless transmit/receive unit (WTRU) is configured to receive an identifier of a beam. The WTRU is configured to measure a downlink quality associated with at least one beam. The WTRU is configured to determine whether the measured downlink quality is below a threshold value. The WTRU is configured to receive at least one control channel transmission using the beam of the identifier in response to a determination that the measured downlink quality is below the threshold value, wherein the beam used to receive the at least one control channel transmission is a same beam used to receive an associated data channel transmission.Type: ApplicationFiled: December 9, 2021Publication date: March 31, 2022Applicant: IDAC HOLDINGS, INCInventors: Moon-il Lee, Yugeswar Deenoo, Tao Deng, Janet A. Stern-Berkowitz, Ravikumar V. Pragada, Mihaela C. Beluri
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Patent number: 11272483Abstract: A wireless transmit/receive unit (WTRU) may determine physical uplink control channel (PUCCH) resources for a PUCCH based on a number of hybrid automatic repeat request (HARQ) bits and based on a parameter. The WTRU may determine a format of the PUCCH based on symbols for uplink control information (UCI) and based on the number of HARQ bits.Type: GrantFiled: March 30, 2017Date of Patent: March 8, 2022Assignee: InterDigital Patent Holdings, Inc.Inventors: Moon-il Lee, Janet A. Stern-Berkowitz, Erdem Bala, Afshin Haghighat, Mihaela C. Beluri
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Patent number: 11265824Abstract: Systems, methods, and instrumentalities are disclosed for non-orthogonal multiple access (NOMA), frequency hopping, and power control. NOMA may be applied to asynchronous and/or grant-free transmissions. Transmissions from multiple WTRUs may be performed using the same resources, and may comprise information for correctly identifying and decoding the transmissions. The transmissions may comprise a built-in deterministic sequence to support timing acquisition at a receiver. The transmissions may be distinguished based on respective transmit power used for the transmissions. Such transmit power may be dynamically controlled by applying a randomly selected power offset. The power control may be performed autonomously by a WTRU.Type: GrantFiled: May 11, 2017Date of Patent: March 1, 2022Assignee: IDAC Holdings, Inc.Inventors: Erdem Bala, Janet A. Stern-Berkowitz, Afshin Haghighat, Moon-il Lee, Mihaela C. Beluri, Ananth Kini, Rui Yang, Alphan Sahin
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Patent number: 11233557Abstract: 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.Type: GrantFiled: November 10, 2016Date of Patent: January 25, 2022Assignee: IDAC HOLDINGS, INC.Inventors: Moon-il Lee, Yugeswar Deenoo, Tao Deng, Janet A. Stern-Berkowitz, Ravikumar V. Pragada, Mihaela C. Beluri
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Publication number: 20210392681Abstract: Systems, devices, and methods for operating in an unlicensed band are disclosed herein. In one example, a device may receive configuration information that includes a maximum channel occupancy time (MCOT) and a plurality of parameters including a plurality of transmission opportunity windows (TOWs). Based on the configuration information, the device may split a transmission into a plurality of bursts that may be grouped into sets of bursts based on how many bursts fit within a TOW. The number of bursts in a set of bursts may be less than or equal to the MCOT. The device may perform a clear channel assessment (CCA) to determine if the channel is busy and to determine a start time within the TOW for the bursts. The device may then transmit the set of bursts for that TOW, where each burst may have a burst indicator (BI).Type: ApplicationFiled: June 18, 2021Publication date: December 16, 2021Applicant: IDAC HOLDINGS, INC.Inventors: Muhammad Fazili, Janet A. Stern-Berkowitz, Arnab Roy, Kevin T. Wanuga, Moon-il Lee, Mihaela C. Beluri
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Publication number: 20210377924Abstract: A wireless transmit/receive unit (WTRU) may receive configuration information indicating a set of physical channel frequency resources. The WTRU may receive downlink control information (DCI), and the DCI may include an indication of an allocation of at least a subset of the set of physical channel frequency resources. Further, the WTRU may determine a time period and one or more physical channel frequency resources from the subset of the set of physical channel frequency resources. The WTRU may transmit control information in a physical shared channel transmission using the determined one or more physical shared channel frequency resources during the determined time period. Also, the control information may include a WTRU-identifier (ID) associated with the WTRU. In an example, the control information may include a new data indicator (NDI) or a retransmission of previously transmitted control information. In a further example, the physical shared channel transmission may further include data.Type: ApplicationFiled: August 13, 2021Publication date: December 2, 2021Applicant: IDAC Holdings, Inc.Inventors: Moon-il Lee, Afshin Haghighat, Erdem Bala, Janet A. Stern-Berkowitz, Mihaela C. Beluri, Ananth Kini
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Publication number: 20210329530Abstract: A method and apparatus for supporting communication buffer status reports (BSRs) are disclosed. A wireless device may generate a first buffer status report (BSR) associated with first data for transmission to at least one wireless transmit/receive unit (WTRU). Also, the wireless device may generate a second BSR associated with second data for transmission to a base station. Further, the wireless device may transmit the first BSR and the second BSR in a media access control (MAC) protocol data unit (PDU) to the base station. Additionally, the wireless device may transmit the first data to the at least one WTRU. Moreover, the wireless device may transmit the second data to the base station. In a further example, the wireless device may generate the first BSR and generate the second BSR are based on a priority associated with the first BSR and a priority associated with the second BSR.Type: ApplicationFiled: June 28, 2021Publication date: October 21, 2021Applicant: InterDigital Patent Holdings, Inc.Inventors: Peter S. Wang, Janet A. Stern-Berkowitz, Nobuyuki Tamaki, Stephen E. Terry, Mihaela C. Beluri, Kai Liu
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Patent number: 11096162Abstract: Methods, apparatuses and systems are provided for grant-less (GL) uplink transmissions. A wireless transmit/receive unit (WTRU) may receive a configuration of a set of GL Physical Uplink Shared Channel (GL-PUSCH) frequency resources. The WTRU may monitor for a downlink control information (DCI) message, wherein the DCI message includes an indication of a presence of at least a subset of the set of GL-PUSCH frequency resources. If the WTRU successfully receives the DCI message, the WTRU may select one or more GL-PUSCH frequency resources from the subset of the set of GL-PUSCH frequency resources and may select a time period. The WTRU may transmit data on a GL-PUSCH using the selected GL-PUSCH frequency resources during the selected time period. The WTRU may also monitor for hybrid automatic repeat request acknowledgement (HARQ-ACK) based on the selected GL-PUSCH frequency resources. The WTRU may monitor for the DCI during a fixed time window.Type: GrantFiled: August 10, 2017Date of Patent: August 17, 2021Assignee: IDAC Holdings, Inc.Inventors: Moon-Il Lee, Afshin Haghighat, Erdem Bala, Janet A. Stern-Berkowitz, Mihaela C. Beluri, Ananth Kini
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Patent number: 11076340Abstract: A method and apparatus for supporting communication buffer status reports (BSRs) are disclosed. A wireless device may receive from an eNode-B a first indication indicating a logical channel group and at least one associated priority. The wireless device may produce a BSR associated with first data, which may include an indication associated with the logical channel group and an index indicating an amount of the first data. The wireless device may transmit the BSR to an eNode-B. Then, the wireless device may receive allocation information for transmission to a wireless transmit/receive unit (WTRU) group. Further, the wireless device may transmit at least a portion of the first data to the WTRU group over a logical channel in the logical channel group. Also, the BSR may further include a plurality of indications associated with a respective plurality of logical channel groups.Type: GrantFiled: September 16, 2019Date of Patent: July 27, 2021Assignee: InterDigital Patent Holdings, Inc.Inventors: Peter S. Wang, Janet A. Stern-Berkowitz, Nobuyuki Tamaki, Stephen E. Terry, Mihaela C. Beluri, Kai Liu
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Patent number: 11051228Abstract: A method and apparatus for supporting communication buffer status reports (BSRs) are disclosed. A wireless device may receive from an eNode-B a first indication indicating a logical channel group and at least one associated priority. The wireless device may produce a BSR associated with first data, which may include an indication associated with the logical channel group and an index indicating an amount of the first data. The wireless device may transmit the BSR to an eNode-B. Then, the wireless device may receive allocation information for transmission to a wireless transmit/receive unit (WTRU) group. Further, the wireless device may transmit at least a portion of the first data to the WTRU group over a logical channel in the logical channel group. Also, the BSR may further include a plurality of indications associated with a respective plurality of logical channel groups.Type: GrantFiled: September 16, 2019Date of Patent: June 29, 2021Assignee: InterDigital Patent Holdings, Inc.Inventors: Peter S. Wang, Janet A. Stern-Berkowitz, Nobuyuki Tamaki, Stephen E. Terry, Mihaela C. Beluri, Kai Liu
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Publication number: 20210168819Abstract: A wireless transmit/receive unit (WTRU) may receive configuration information for a first set of resources and a second set of resources for a grantless physical uplink shared channel (PUSCH) transmission. The WTRU may determine data for transmission using the grantless PUSCH transmission. Based on the data, the WTRU may select resources from the first set or the second set for the grantless PUSCH transmission. Further, the WTRU may send the grantless PUSCH transmission including the data using the selected resources. In an example, the sending of the grantless PUSCH transmission may be part of a random access procedure. The random access procedure may be a two-step random access procedure. The random access procedure may be a random access channel (RACH) procedure. The random access procedure may depend upon a double contention pool setting, and the setting may address at least one of a data pool or a control pool.Type: ApplicationFiled: December 1, 2020Publication date: June 3, 2021Applicant: IDAC HOLDINGS, INC.Inventors: Hanqing Lou, Xiaofei Wang, Rui Yang, Mihaela C. Beluri, Janet A. Stern-Berkowitz
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Publication number: 20210167905Abstract: Systems, methods, and instrumentalities are disclosed for physical (PHY) layer multiplexing of different types of traffic in 5G systems. A device may receive a communication. The communication may include a first traffic type. The device may monitor the communication for an indication that the communication includes a second traffic type that is multiplexed with and/or punctures the first traffic type. An indicator received in the communication and detected by the monitoring may indicate where the second traffic type is located in the communication. The first traffic type and the second traffic type may be multiplexed at a resource element (RE) level. For example, a first traffic type may be punctured by a second traffic type at the RE level. The device may decode one or more of the first or second traffic types in the communication based on the indication.Type: ApplicationFiled: February 9, 2021Publication date: June 3, 2021Applicant: IDAC Holdings, Inc.Inventors: Erdem Bala, Alphan Sahin, Moon-il Lee, Mihaela C. Beluri, Rui Yang, Janet A. Stern-Berkowitz, Fengjun Xi, Afshin Haghighat
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Publication number: 20210167899Abstract: 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: April 3, 2019Publication date: June 3, 2021Applicant: IDAC Holdings, Inc.Inventors: Anantharaman BALASUBRAMANIAN, Nagi MAHALINGAM, Mihaela C. BELURI, Ravikumar V. PRAGADA
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Publication number: 20210144757Abstract: Systems, devices, and methods for operating in an unlicensed band are disclosed herein. In one example, a device may receive configuration information that includes a maximum channel occupancy time (MCOT) and a plurality of parameters including a plurality of transmission opportunity windows (TOWs). Based on the configuration information, the device may split a transmission into a plurality of bursts that may be grouped into sets of bursts based on how many bursts fit within a TOW. The number of bursts in a set of bursts may be less than or equal to the MCOT. The device may perform a clear channel assessment (CCA) to determine if the channel is busy and to determine a start time within the TOW for the bursts. The device may then transmit the set of bursts for that TOW, where each burst may have a burst indicator (BI).Type: ApplicationFiled: June 22, 2018Publication date: May 13, 2021Applicant: IDAC HOLDINGS, INC.Inventors: Muhammad Fazili, Janet A. Stern-Berkowitz, Arnab Roy, Kevin T. Wanuga, Moon-il Lee, Mihaela C. Beluri
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Patent number: 10985958Abstract: Systems, methods, and instrumentalities are disclosed for separating a channel and data without the use of reference signals. For example, a wireless transmit/receive unit (WTRU) may determine a first orthogonal frequency-division multiplexing (OFDM) symbol based on a data vector. The WTRU may determine a second OFDM symbol by applying a circular time-inverse operation and a conjugate operation to the first OFDM symbol. The WTRU may send the first OFDM symbol and the second OFDM symbol. The first and the second OFDM symbols may be sent to consecutively. Discrete Fourier Transform (DFT)-spread and nonlinear preprocessing (exponential transformation at the transmitter) may be used and/or peak-to-average power ratio (PAPR) may be reduced via randomizer block at the receiver.Type: GrantFiled: September 19, 2017Date of Patent: April 20, 2021Assignee: IDAC Holdings, Inc.Inventors: Alphan Sahin, Erdem Bala, Rui Yang, Mihaela C. Beluri, Moon-il Lee, Janet A. Stern-Berkowitz
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Publication number: 20210037511Abstract: Transmit and/or receive beamforming may be applied to the control channel transmission/reception, e.g., in mmW access link system design. Techniques to identify candidate control channel beams and/or their location in the subframe structure may provide for efficient WTRU operation. A framework for beam formed control channel design may support varying capabilities of mBs and/or WTRUs, and/or may support time and/or spatial domain multiplexing of control channel beams. For a multi-beam system, modifications to reference signal design may discover, identify, measure, and/or decode a control channel beam. Techniques may mitigate inter-beam interference. WTRU monitoring may consider beam search space, perhaps in addition to time and/or frequency search space. Enhancements to downlink control channel may support scheduling narrow data beams. Scheduling techniques may achieve high resource utilization, e.g., perhaps when large bandwidths are available and/or WTRUs may be spatially distributed.Type: ApplicationFiled: October 16, 2020Publication date: February 4, 2021Inventors: Yugeswar Deenoo, Tao Deng, Kyle Jung-Lin Pan, Moon-il Lee, Ravikumar V. Pragada, Janet A. Stern-Berkowitz, Mihaela C. Beluri