Patents by Inventor Shahrokh Nayeb Nazar

Shahrokh Nayeb Nazar 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).

  • Publication number: 20220231743
    Abstract: Embodiments contemplate methods, systems, and apparatuses for interference measurement in a wireless communication network, including wireless communication networks the employ MIMO in uplink and/or downlink communication. Embodiments contemplate identifying one or more interference measurement resource elements that may be received from one or more transmission points. Embodiments also contemplate performing interference measurement estimation based at least in part on the identified one or more interference measurement resource elements. Channel state information (CSI) perhaps in the form of reports may be generated based at least in part on the one or more interference measurement estimation. Embodiments also contemplate that the CSI report may be transmitted to one or more nodes. In some embodiments, the one or more interference measurement resource elements may be received as part of a set of resource elements.
    Type: Application
    Filed: April 7, 2022
    Publication date: July 21, 2022
    Inventors: Moon-il Lee, Paul Marinier, Shahrokh Nayeb Nazar, Allan Y. Tsai, Guodong Zhang, J. Patrick Tooher
  • Publication number: 20220217736
    Abstract: A wireless transmit/receive unit (WTRU) may receive a first higher layer configuration for a cancellation indication (CI). Further, the first higher layer configuration may include a set of reference frequency resources. Also, the WTRU may receive a grant indicating a frequency allocation and a time allocation for a scheduled transmission. Further, on a condition that the CI is received, the WTRU may interrupt the scheduled transmission. Additionally, the CI may indicate a subset of frequency resources of the set of reference frequency resources for each of a set of time symbols. Also, the WTRU may cancel the scheduled transmission on a condition that the subset of frequency resources of a set of time symbols overlaps with the frequency allocation and the time allocation for the scheduled transmission. In a further example, the first higher layer configuration may include an applicable maximum priority and the grant may include a priority index.
    Type: Application
    Filed: April 30, 2020
    Publication date: July 7, 2022
    Applicant: IDAC HOLDINGS, INC.
    Inventors: Mahmoud TAHERZADEH BOROUJENI, Oghenekome OTERI, Shahrokh NAYEB NAZAR, Faris ALFARHAN, Paul MARINIER, Ghyslain PELLETIER
  • Publication number: 20220190906
    Abstract: Methods and apparatus for transmitting a hybrid automatic repeat request acknowledgment (HARQ-ACK) are disclosed. A wireless transmit/receive unit (WTRU) may transmit a random access channel (RACH) message-A to a gNB. The WTRU may receive a RACH message-B from the gNB in response to the message-A. The message-B may comprise downlink control information (DCI). The WTRU may decode a physical downlink shared channel (PDSCH) based on the DCI. The WTRU may determine that contention resolution is successful. The WTRU may determine a resource for a physical uplink control channel (PUCCH). The WTRU may transmit a HARQ-ACK over the determined PUCCH resource. The WTRU may determine the resource for the PUCCH based on a PUCCH resource index. The PUCCH resource index may be based on a random access preamble index (RAPID) and a PUCCH resource indicator (PRI).
    Type: Application
    Filed: February 13, 2020
    Publication date: June 16, 2022
    Applicant: IDAC HOLDINGS, INC.
    Inventors: Afshin Haghighat, Shahrokh Nayeb Nazar, Loic Cannone-Velasquez, Faris Alfarhan, J. Patrick TOOHER
  • Patent number: 11343857
    Abstract: Systems, methods, and devices for random access to a communications network by a wireless transmit/receive unit (WTRU). In some implementations, the WTRU receives random access response (RAR) configuration information. The WTRU determines a time offset for a RAR window, based on a minimum round trip time (RTT) between the WTRU and a non-terrestrial network device. The WTRU determines a length of the RAR window. the WTRU monitors a physical downlink control channel (PDCCH) from the non-terrestrial network device during the RAR window based on the time offset and the length of the RAR window.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: May 24, 2022
    Assignee: IDAC Holdings, Inc.
    Inventors: Mahmoud Taherzadeh Boroujeni, Shahrokh Nayeb Nazar, Ahmad Reza Hedayat, Seyed Mohsen Hosseinian
  • Publication number: 20220141805
    Abstract: A WTRU may receive a plurality of monitoring configurations. The plurality of monitoring configurations may be associated with a plurality of sub-bands. The WTRU may apply a monitoring configuration based on the location of a slot inside or outside of a COT. For example, the WTRU may apply (e.g., use) a first monitoring configuration outside a COT. The WTRU may apply a second monitoring configuration in a first slot of a COT. The WTRU may apply a third monitoring configuration to the slots of a COT subsequent to the first slot of the COT. The WTRU may switch back to the first monitoring configuration on a condition that the COT ends.
    Type: Application
    Filed: February 10, 2020
    Publication date: May 5, 2022
    Inventors: J. Patrick Tooher, Shahrokh Nayeb Nazar, Aata EI Hamss, Afshin Haghighat, Oghenekome Oteri
  • Publication number: 20220131648
    Abstract: Method and apparatuses for communication over an unlicensed band are provided herein. A method may comprise transmitting transport blocks in each slot of a plurality of slots and determining a Hybrid Automatic Repeat Request (HARQ) status for each of the transmitted transport blocks. The method may further comprise determining a weighting coefficient for each of the determined HARQ statuses and calculating, based on the determined HARQ statuses and weighting coefficients, a weighted average of the HARQ statuses for the transmitted transport blocks. The method may further comprise adjusting a Listen-Before-Talk (LBT) contention window size based on the calculated weighted average of the HARQ statuses.
    Type: Application
    Filed: February 13, 2020
    Publication date: April 28, 2022
    Applicant: IDAC HOLDINGS, INC.
    Inventors: Aata El Hamss, J. Patrick Tooher, Shahrokh Nayeb Nazar, Afshin Haghighat
  • Publication number: 20220132533
    Abstract: A WTRU may receive a slot format configuration (SFC) that indicates flexible symbols, uplink symbols, and downlink symbols. The WTRU may receive an uplink grant that is associated with the PUSCH transmission with repetitions. The received uplink grant may comprise a dedicated slot format indicator (SFI) and a resource map that indicates available resource block groups associated with the uplink symbols. The WTRU may identify an available uplink symbol based on the SFC, the SFI, and the resource map. The WTRU may identify, for the available uplink symbol, unavailable resource block groups based on the resource map. The WTRU may perform a PUSCH transmission repetition using the available uplink symbol, wherein the PUSCH transmission avoids the unavailable resource block groups.
    Type: Application
    Filed: February 10, 2020
    Publication date: April 28, 2022
    Applicant: IDAC HOLDINGS, INC.
    Inventors: Mahmoud Taherzadeh Boroujeni, Oghenekome Oteri, Shahrokh Nayeb Nazar
  • Patent number: 11316572
    Abstract: Embodiments contemplate methods, systems, and apparatuses for interference measurement in a wireless communication network, including wireless communication networks the employ MIMO in uplink and/or downlink communication. Embodiments contemplate identifying one or more interference measurement resource elements that may be received from one or more transmission points. Embodiments also contemplate performing interference measurement estimation based at least in part on the identified one or more interference measurement resource elements. Channel state information (CSI) perhaps in the form of reports may be generated based at least in part on the one or more interference measurement estimation. Embodiments also contemplate that the CSI report may be transmitted to one or more nodes. In some embodiments, the one or more interference measurement resource elements may be received as part of a set of resource elements.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: April 26, 2022
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Moon-il Lee, Paul Marinier, Shahrokh Nayeb Nazar, Allan Y. Tsai, Guodong Zhang, J. Patrick Tooher
  • Patent number: 11316649
    Abstract: A wireless transmit/receive unit (WTRU) may receive a PDCCH transmission comprising a CCE that is mapped to one or more REGs based on a CCE-to-REG mapping. The WTRU may receive the CCE-to-REG mapping that indicates a REG bundle corresponding to the CCE and use the CCE-to-REG mapping to identify the REGs for the SWTRU. Depending on whether the CCE-to-REG mapping is interleaving or noninterleaving, the CCE-to-REG mapping may be based on different parameters. If the CCE-to-REG mapping is interleaving, the CCE-to-REG mapping may be based on an index associated with the CCE and a number of REGs in the REG bundle. If the CCE-to-REG mapping is noninterleaving, the CCE-to-REG mapping may be based on the index of the CCE.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: April 26, 2022
    Assignee: IDAC Holdings, Inc.
    Inventors: Mahmoud Taherzadeh Boroujeni, Moon-il Lee, Afshin Haghighat, Shahrokh Nayeb Nazar, Oghenekome Oteri
  • Patent number: 11303493
    Abstract: Methods and apparatuses are described herein for transmit diversity in an uplink control channel. A wireless transmit/receive unit (WTRU) may perform a Discrete Fourier Transform (DFT) precoding operation on a data symbol sequence segment to generate a DFT precoded segment. The WTRU may then perform a Space Frequency Block Coding (SFBC) operation on the DFT precoded segment to generate a SFBC processed segment. The data symbols of the DFT precoded segment may be reordered in the SFBC processed segment. The WTRU may map the DFT precoded segment to a first set of contiguous subcarriers and the SFBC processed segment to a second set of contiguous subcarriers. The WTRU may then transmit a first DFT spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) signal on the first set of contiguous subcarriers via a first antenna port and a second DFT-s-OFDM signal on the second set of contiguous subcarriers via a second antenna port.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: April 12, 2022
    Assignee: IDAC HOLDINGS, INC.
    Inventors: Erdem Bala, Moon-il Lee, Shahrokh Nayeb Nazar, Afshin Haghighat, Alphan Sahin, Rui Yang, Frank La Sita
  • Publication number: 20220086915
    Abstract: Methods and apparatus for beam refinement are disclosed. A wireless transmit/receive unit (WTRU) may be configured to receive configuration information. The configuration information may indicate an association between preambles, synchronization signal blocks (SSBs), reference signal (RS) sets, and physical uplink shared channel (PUSCH) resources. The WTRU may be configured to receive a plurality of SSBs, determine a measurement of the received SSBs, and select an SSB based on the determined measurement. The WTRU may be configured to select and transmit a preamble using a first beam. The WTRU may be configured to receive a plurality of sets of RSs based on the transmitted preamble and determine a measurement of the received sets of RSs. The WTRU may be configured to select a RS based on the determined measurement of the received sets of RSs. The WTRU may be configured to transmit uplink data on a PUSCH using a second beam.
    Type: Application
    Filed: February 11, 2020
    Publication date: March 17, 2022
    Applicant: IDAC HOLDINGS, INC.
    Inventors: Loic Canonne-Velasquez, Afshin Haghighat, Shahrokh Nayeb Nazar, J. Patrick Tooher
  • Publication number: 20220022163
    Abstract: A method and apparatus are described for a low cost machine-type-communication (LC-MTC) wireless transmit/receive unit (WTRU) to enhance coverage. An example method for physical broadcast channel (PBCH) enhancement includes receiving system information on an enhanced PBCH (ePBCH). The ePBCH is located in a set of radio frames which is a subset of available radio frames, where the subset includes fewer than all the available radio frames. The ePBCH is received in at least one radio frame of the set of radio frames. An example method for physical random access channel (PRACH) enhancement includes receiving configuration of legacy PRACH resources and enhanced PRACH (ePRACH) resources. The WTRU selects one of legacy PRACH resources or ePRACH resources based on a coverage capability. Another example method for PRACH enhancement includes receiving configuration of ePRACH resources. The ePRACH resources include multiple ePRACH resource types, each ePRACH resource type being associated with a coverage capability.
    Type: Application
    Filed: August 31, 2021
    Publication date: January 20, 2022
    Inventors: Moon-il Lee, Janet A. Stern-Berkowitz, Nobuyuki Tamaki, John W. Haim, Pouriya Sadeghi, Marian Rudolf, Shahrokh Nayeb Nazar
  • Patent number: 11224033
    Abstract: Systems, methods, and instrumentalities are described herein that may be used to determine one or more control channel operational parameters associated with transmitting first uplink control information (UCI) and second UCI in a same control channel. The parameters may include respective repetition factors and/or spreading factors associated with the first UCI and the second UCI. The parameters may be determined based on respective characteristics of the first UCI and the second UCI. These characteristics may include reliability requirements, usage scenarios, and/or the like. Self-contained subframes may be employed to transmit data and/or control information. The control information may be transmitted using different numerologies than the data.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: January 11, 2022
    Assignee: IDAC HOLDINGS, INC.
    Inventors: Shahrokh Nayeb Nazar, Oghenekome Oteri, Mahmoud Taherzadeh Boroujeni
  • Publication number: 20220007304
    Abstract: Systems, methods, and instrumentalities are provided that are associated with multi-layer transmissions such as multi-layer NOMA transmissions. A per-layer perturbation pattern may be applied to the multiple layers to create differences among the transmission power levels of the layers. MAS and NOMA resource indications may be provided, e.g., through TCI state. Dynamic MAS and NOMA resource indications may be provided. Uplink CSI-RS techniques may be provided, e.g., for interference measurement.
    Type: Application
    Filed: November 12, 2019
    Publication date: January 6, 2022
    Applicant: IDAC Holdings, Inc.
    Inventors: Afshin Haghighat, Loic Canonne-Velasquez, Moon-il Lee, Shahrokh Nayeb Nazar, Prasanna Herath Mudiyanselage
  • Publication number: 20210391906
    Abstract: Systems, methods, and instrumentalities are described herein that may be used for transmission of one or more DCI, CSI-RS and/or CSI reports. A wireless transmit/receive unit (WTRU) may receive a DCI that includes information indicating two channel state information reference signal (CSI-RS) resources and four CSI reporting resources. Each CSI-RS resource may be associated with two CSI reporting resources. The WTRU may monitor a first CSI-RS resource for a CSI-RS. If the WTRU does not identify the CSI-RS in the first CSI-RS resource, the WTRU may monitor a second CSI-RS resource for the CSI-RS. The WTRU may receive the CSI-RS on the first CSI-RS resource or the second CSI-RS resource. The WTRU may determine availabilities of the first and/or the second CSI reporting resource associated with the CSI-RS resource on which the WTRU received the CSI-RS. The WTRU may transmit a CSI report on an available CSI reporting resource.
    Type: Application
    Filed: August 8, 2019
    Publication date: December 16, 2021
    Applicant: IDAC Holdings, Inc.
    Inventors: Oghenekome Oteri, Ahmad Reza Hedayat, Shahrokh Nayeb Nazar, Rui Yang
  • Publication number: 20210392618
    Abstract: A relay wireless transmit/receive unit (WTRU) may receive a data transmission from a target WTRU. The data transmission from the target WTRU may be or may include an implicit indication that the target WTRU is unable to listen for a message directed to the target WTRU. The message directed to the target WTRU may be a broadcast preemption message (BPM) and may be transmitted from a source WTRU. Based on the reception of the data transmission from the target WTRU, the relay WTRU may determine that the target WTRU is unable to listen for the BPM. Based on the determination, the relay WTRU may monitor for the BPM. The relay WTRU may receive and decode the BPM. The relay WTRU may determine whether to relay the BPM in a message, such as a broadcast relay message (BRM). The relay WTRU may transmit the BRM to the target WTRU.
    Type: Application
    Filed: October 3, 2019
    Publication date: December 16, 2021
    Applicant: IDAC Holding, Inc.
    Inventors: Ahmad Reza Hedayat, Mahmoud Taherzadeh Boroujeni, Oghenekome Oteri, Shahrokh Nayeb Nazar, Erdem Bala
  • Publication number: 20210368541
    Abstract: Methods, systems, and devices for channel access and listen-before-talk approaches for new radio operation in unlicensed bands and/or licensed bands. A gNB and a wireless transmit/receive unit (WTRU) may operate in unlicensed spectrum. The gNB may perform listen-before-talk operation, and when successful, may send a downlink control channel with a slot format indication (SFI) to the WTRU. There may also be a handshaking procedure with an exchange of a request to transmit (RTT) and a request to receive (RTR). Prior to receiving the downlink channel, the WTRU may monitor search spaces at a first level, and once the downlink channel is received the WTRU may monitor search spaces at a second level. At the end of transmission, the WTRU may revert back to monitoring search spaces at the first level.
    Type: Application
    Filed: January 10, 2019
    Publication date: November 25, 2021
    Applicant: IDAC HOLDINGS, INC.
    Inventors: Ahmad Reza Hedayat, Oghenekome Oteri, Hanqing Lou, Mahmoud Taherzadeh Boroujeni, Xiaofei Wang, Rui Yang, Shahrokh Nayeb Nazar
  • Publication number: 20210360583
    Abstract: Methods, systems and apparatuses for operation in long-term evolution (LTE) systems are provided, including a method implemented in a base station that may include receiving, from a wireless transmit/receive unit (WTRU) via a first interface, a first message including radio capability information associated with the WTRU; transmitting, to a mobility management entity (MME) via a second interface, a second message including the radio capability information; receiving, from the MME via the second interface, a paging message including the radio capability information; and determining whether to page the WTRU in idle mode based on the radio capability information. Also provided is another method implemented by a WTRU in a vicinity of a dormant cell. This method may include any of: receiving, from a dormant cell, a signal; receiving, from a serving cell, a trigger to initiate measurement of one or more dormant cells; and measuring the signal.
    Type: Application
    Filed: July 26, 2021
    Publication date: November 18, 2021
    Inventors: Pouriya Sadeghi, J. Patrick Tooher, Janet Stern-Berkowitz, Moon-il Lee, Ghyslain Pelletier, Nobuyuki Tamaki, Shahrokh Nayeb Nazar, Li-Hsiang Sun
  • Publication number: 20210351862
    Abstract: Systems, methods and instrumentalities are disclosed for decoding data. For example, it may be determined, in a current slot, whether data received in a previous slot is decoded successfully. The data received in the previous slot may be included in a Physical Downlink Shared Channel (PDSCH). If the data received in the previous slot is not decoded successfully, preemptive multiplexing information may be detected in a first search space. The data received in the previous slot may be decoded, for example, using detected preemptive multiplexing information. The preemptive multiplexing information may be of a current slot. The preemptive multiplexing information may be comprised in a first DCI. A second search space of the current slot may be searched. For example, the second search space may be searched for a second DCI. The first DCI and the second DCI may be different.
    Type: Application
    Filed: July 26, 2021
    Publication date: November 11, 2021
    Applicant: IDAC HOLDINGS, INC.
    Inventors: Liangping Ma, Shahrokh Nayeb Nazar, Oghenekome Oteri, Seyed Mohsen Hosseinian, Mahmoud Taherzadeh Boroujeni, Frank La Sita
  • Publication number: 20210352629
    Abstract: A method of multi-transmit/receive point (multi-TRP) transmission. The method comprises receiving a parameter set and a physical downlink control channel (PDCCH) transmission from each of multiple TRPs; decoding each received PDCCH transmission to obtain a K1 value for each of the multiple TRPs based on each received parameter set; receiving a physical downlink shared channel (PDSCH) transmission from each of the multiple TRPs; determining a PDSCH reception slot location for each received PDSCH transmission; determining, based on each determined PDSCH reception slot location and each obtained K1 value, a candidate PUCCH slot location for each of the multiple TRPs; and determining a selected PUCCH slot location for the multiple TRPs based on comparison of all of the determined candidate PUCCH slot locations, wherein if all of the determined candidate PUCCH slot locations are not the same, the selected PUCCH slot location is a farthest candidate PUCCH slot location.
    Type: Application
    Filed: October 9, 2019
    Publication date: November 11, 2021
    Applicant: IDAC HOLDINGS, INC.
    Inventors: Afshin Haghighat, Shahrokh Nayeb Nazar, Moon-il Lee