Patents by Inventor Ebrahim MolavianJazi

Ebrahim MolavianJazi 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: 20210184812
    Abstract: Apparatuses and methods for transmitting or receiving a signal or a channel. A method for operating a user equipment (UE) to receive the signal or the channel includes receiving a configuration for spatial filters, determining first and second spatial filters from the spatial filters, and determining first and second numbers of repetitions. The spatial filters correspond to spatial relations with reference signals (RSs), respectively. The first and second spatial filters are different. The first and second numbers of repetitions are different. The method further includes transmitting the signal or the channel using the first spatial filter for the first number of repetitions and using the second spatial filter for the second number of repetitions. The second number of repetitions is transmitted after the first number of repetitions.
    Type: Application
    Filed: December 9, 2020
    Publication date: June 17, 2021
    Inventors: Ebrahim MolavianJazi, Aris Papasakellariou
  • Publication number: 20210168726
    Abstract: Apparatuses, methods, and systems are disclosed for uplink power control. One method includes receiving uplink power control parameters. The method includes determining a first transmit power for the first uplink transmission based on a corresponding first set of uplink power control parameters. The method includes determining a second transmit power for the second uplink transmission based on a corresponding second set of uplink power control parameters. The method includes performing the first uplink transmission using a first uplink transmission beam pattern or a first spatial domain transmission filter based on the first transmit power. The method includes performing the second uplink transmission using a second uplink transmission beam pattern or a second spatial domain transmission filter based on the second transmit power.
    Type: Application
    Filed: February 3, 2021
    Publication date: June 3, 2021
    Inventors: Ebrahim MolavianJazi, Vijay Nangia, Hyejung Jung, Hossein Bagheri, Joachim Loehr
  • Publication number: 20210160879
    Abstract: Methods and apparatuses for group scheduling for physical downlink control channel (PDCCH) overhead reduction. A method of operating a UE includes receiving first configuration information for reception of first PDCCHs. A PDCCH from the first PDCCHs provides a first downlink control information (DCI) format that includes a first number of information bits. The method further includes receiving second configuration information for a location of a second number of information bits, smaller than the first number of information bits, in the first DCI format; receiving at least one of the first PDCCHs; and determining, from the second number of information bits, values of one or more fields associated with reception of a first physical downlink shared channel (PDSCH) or with transmission of a first physical uplink shared channel (PUSCH).
    Type: Application
    Filed: November 5, 2020
    Publication date: May 27, 2021
    Inventors: Qiongjie Lin, Aris Papasakellariou, Ebrahim MolavianJazi
  • Publication number: 20210153137
    Abstract: Configuration information including a cell identifier can be transmitted on a first cell. A pathloss reference signal associated with a second cell can be transmitted. An uplink transmission can be received from a user equipment on the first cell. A transmit power of the uplink transmission can be determined by the user equipment based on the pathloss reference signal.
    Type: Application
    Filed: December 20, 2020
    Publication date: May 20, 2021
    Inventors: Ebrahim MolavianJazi, Hyejung Jung, Vijay Nangia
  • Patent number: 10993189
    Abstract: A method and apparatus is provided, wherein configuration information for a transmission is determined based on a configured uplink grant. Information of an assigned one of a plurality of different received by a network entity power levels for each user equipment for a given transmission instance is received. A transmit power offset is determined, based on the received information of the assigned one of the plurality of different received by the network entity power levels. A transmit power for transmission is determined, based on the configuration information of the configured uplink grant and by applying the determined transmit power offset. An uplink transmission is performed using the determined transmit power for transmission.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: April 27, 2021
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Hyejung Jung, Ebrahim MolavianJazi, Hossein Bagheri, Vijay Nangia
  • Patent number: 10993195
    Abstract: Apparatuses, methods, and systems are disclosed for determining a power headroom report. One method includes determining a power headroom report for transmission on a physical uplink shared channel resource corresponding to a configured grant. The method includes transmitting the power headroom report on the physical uplink shared channel resource, wherein: determining the power headroom report comprises determining whether the power headroom report is based on a real transmission or a reference format based on signaling for configured grants and downlink control information received up until a predetermined time before a first uplink symbol of the physical uplink shared channel resource; and the predetermined time is computed based on: a first parameter set to zero; and a subcarrier spacing of an active downlink bandwidth part of a scheduling cell for the configured grant.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: April 27, 2021
    Assignee: Lenovo (Singapore) PTE. LTD.
    Inventors: Joachim Loehr, Ebrahim MolavianJazi, Vijay Nangia, Ravi Kuchibhotla
  • Patent number: 10992366
    Abstract: A method and apparatus is provided for determining physical uplink channel power control parameter values for use after a beam failure recovery. A physical random access channel with a spatial domain transmission filter associated with a selected downlink reference signal from a set of downlink reference signals configured for a link recovery is transmitted. A determination is made as to whether the selected downlink reference signal is configured for at least one of a set of uplink spatial relation configurations as a reference signal for an uplink spatial relation setting for a physical uplink channel transmission. A power control parameter value for the physical uplink channel transmission is determined. The physical uplink channel is transmitted with the spatial domain transmission filter associated with the selected downlink reference signal and the determined physical uplink channel power control parameter value.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: April 27, 2021
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Hyejung Jung, Ebrahim MolavianJazi, Vijay Nangia
  • Patent number: 10986591
    Abstract: Apparatuses, methods, and systems are disclosed for transmission power for dual connectivity. One method includes operating a UE with DC comprising connectivity with a first cell group and a second cell group; receiving a configuration message configuring the UE with a first maximum transmission power for transmissions on the first cell group, and a second maximum transmission power for transmissions on the second cell group; determining, at a UE, a transmission time for a first transmission on a first serving cell of the first cell group; and determining a cut-off time for power determination for the first transmission, wherein the cut-off time is based on the transmission time for the first transmission offset by an offset time, and the offset time is based on a function of a first UE processing time and a second UE processing time.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: April 20, 2021
    Assignee: Lenovo (Singapore) PTE. LTD.
    Inventors: Ebrahim MolavianJazi, Vijay Nangia, Hyejung Jung
  • Patent number: 10986593
    Abstract: Apparatuses, methods, and systems are disclosed for uplink power control. One method includes: receiving a message that configures a set of resources that each includes a downlink resource or an uplink sounding resource and is associated with an uplink transmission beam pattern; receiving scheduling information for an uplink transmission that is associated with a resource of the set of resources; determining an uplink transmission beam pattern associated with the resource; determining a configured maximum output power for the uplink transmission beam pattern that is based on an antenna array property associated with the uplink transmission beam pattern; determining a transmit power for the uplink transmission based on the configured maximum output power; and performing the uplink transmission using the uplink transmission beam pattern based on the transmit power.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: April 20, 2021
    Assignee: Lenovo (Singapore) PTE. LTD.
    Inventors: Ebrahim MolavianJazi, Vijay Nangia, Hyejung Jung, Colin D. Frank, Robert T. Love, Ravi Kuchibhotla, Hossein Bagheri
  • Patent number: 10986583
    Abstract: Apparatuses, methods, and systems are disclosed for transmission power control. One method includes receiving a first configuration indicating a plurality of bandwidth parts on a first serving cell and configuration information corresponding to the plurality of bandwidth parts. The configuration information comprises an open-loop power control configuration, a closed loop power control configuration, or a combination thereof corresponding to each bandwidth part of the plurality of bandwidth parts. The method comprises receiving scheduling information for a first uplink transmission on a first bandwidth part of the plurality of bandwidth parts. The method comprises determining a first transmission power for the first uplink transmission based on the configuration information and the scheduling information. The method comprises performing the first uplink transmission with the first transmission power.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: April 20, 2021
    Assignee: Lenovo (Singapore) PTE. LTD.
    Inventors: Ebrahim MolavianJazi, Hyejung Jung, Vijay Nangia
  • Patent number: 10986584
    Abstract: Apparatuses, methods, and systems are disclosed for power headroom reporting for multiple uplink carriers. One apparatus includes a transceiver that receives a configuration of a plurality of UL carriers for a serving cell. The first apparatus includes a processor that determines that a PHR has been triggered, where the PHR for the serving cell is determined to be a virtual PHR. The processor determines a default power control parameter set for the serving cell and calculates a PHR for the serving cell. Here, calculating the PHR includes calculating a virtual PH based on the default power control parameter set. The processor transmits (via the transceiver) the calculated PHR for the serving cell.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: April 20, 2021
    Assignee: Lenovo (Singapore) PTE. LTD.
    Inventors: Ebrahim MolavianJazi, Joachim Loehr, Hyejung Jung, Vijay Nangia, Prateek Basu Mallick
  • Patent number: 10972948
    Abstract: Apparatuses, methods, and systems are disclosed for random access skip configuration. One method includes receiving a handover command message from a first cell, wherein: the handover command message includes first information that indicates a configuration of a second cell, random access channel resources on the second cell, and a first reference signals associated with the second cell; each of the first reference signals is associated with a random access channel resource; second information indicates skip configurations and second reference signals are associated with the second cell; and each of the second reference signals is associated with a random access skip configuration. The method includes receiving a first set of downlink reference signals and a second set of downlink reference signals. The method includes, selecting a first downlink reference signal and determining whether to perform a random access procedure.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: April 6, 2021
    Assignee: Lenovo (Singapore) PTE. LTD.
    Inventors: Hyejung Jung, Prateek Basu Mallick, Joachim Loehr, Ravi Kuchibhotla, Vijay Nangia, Ebrahim MolavianJazi, Robert T. Love
  • Publication number: 20210076384
    Abstract: Base stations and user equipments (UEs) for random access and contention resolution. A method for operating a UE includes receiving configurations for a first control resource set (CORESET) that includes a first number of resource blocks (RBs) in a frequency domain and a first number of symbols in a time domain, a second CORESET that includes a second number of RBs in the frequency domain and a second number of symbols in the time domain, and a reference signal received power (RSRP) threshold. The method further includes determining a first RSRP value and receiving a first physical downlink control channel (PDCCH). The first PDCCH reception is in the first CORESET when the first RSRP value is larger than the RSRP threshold and the first PDCCH reception is in the second CORESET when the first RSRP value is smaller than the RSRP threshold.
    Type: Application
    Filed: September 10, 2020
    Publication date: March 11, 2021
    Inventors: Ebrahim MolavianJazi, Aris Papasakellariou
  • Patent number: 10945216
    Abstract: Apparatuses, methods, and systems are disclosed for uplink power control. One method includes receiving uplink power control parameters. The method includes determining a first transmit power for the first uplink transmission based on a corresponding first set of uplink power control parameters. The method includes determining a second transmit power for the second uplink transmission based on a corresponding second set of uplink power control parameters. The method includes performing the first uplink transmission using a first uplink transmission beam pattern or a first spatial domain transmission filter based on the first transmit power. The method includes performing the second uplink transmission using a second uplink transmission beam pattern or a second spatial domain transmission filter based on the second transmit power.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: March 9, 2021
    Assignee: Lenovo (Singapore) PTE. LTD.
    Inventors: Ebrahim MolavianJazi, Vijay Nangia, Hyejung Jung, Hossein Bagheri, Joachim Loehr
  • Publication number: 20210058971
    Abstract: Apparatuses and methods for physical random access channel (PRACH) preamble transmissions or receptions. A method of a UE includes receiving a physical downlink shared channel (PDSCH) that provides a system information block (SIB). The SIB includes an indication for (i) a first transmission configuration indication (TCI) state that provides a first set of quasi-collocation (QCL) properties and (ii) for a second TCI state that provides a second set of QCL properties. The method further includes transmitting a first PRACH according to the first TCI state and a second PRACH according to the second TCI state.
    Type: Application
    Filed: August 6, 2020
    Publication date: February 25, 2021
    Inventors: Ebrahim MolavianJazi, Aris Papasakellariou
  • Publication number: 20210014799
    Abstract: Apparatuses, methods, and systems are disclosed for power headroom report generation. One method includes aggregating multiple serving cells. The method includes determining that a power headroom report is triggered. The method includes determining that an uplink resource for a new transmission on a serving cell of the multiple serving cells is allocated at a first time after the power headroom report is triggered. The method includes determining a power headroom value for each serving cell of the multiple serving cells being activated based on information received prior to and including a predetermined time before the start of the uplink resource at the first time. The method includes generating a power headroom report medium access control control element including at least the power headroom value for each serving cell of the multiple serving cells being activated.
    Type: Application
    Filed: September 29, 2020
    Publication date: January 14, 2021
    Inventors: Joachim Loehr, Ebrahim MolavianJazi, Prateek Basu Mallick, Ravi Kuchibhotla
  • Patent number: 10887843
    Abstract: Configuration information can be received in a first serving cell. A determination can be made as to whether the configuration information includes a cell ID. A pathloss estimate for an uplink transmission transmit power setting can be determined based on a pathloss reference signal associated with a second serving cell if the configuration information includes the cell ID. The uplink transmission can be transmitted on the first serving cell based on the determined pathloss estimate.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: January 5, 2021
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Ebrahim MolavianJazi, Hyejung Jung, Vijay Nangia
  • Publication number: 20200367174
    Abstract: Apparatuses, methods, and systems are disclosed for power headroom reporting for multiple uplink carriers. One apparatus includes a transceiver that receives a configuration of a plurality of UL carriers for a serving cell. The first apparatus includes a processor that determines that a PHR has been triggered, where the PHR for the serving cell is determined to be a virtual PHR. The processor determines a default power control parameter set for the serving cell and calculates a PHR for the serving cell. Here, calculating the PHR includes calculating a virtual PH based on the default power control parameter set. The processor transmits (via the transceiver) the calculated PHR for the serving cell.
    Type: Application
    Filed: August 3, 2020
    Publication date: November 19, 2020
    Inventors: Ebrahim MolavianJazi, Joachim Loehr, Hyejung Jung, Vijay Nangia, Prateek Basu Mallick
  • Publication number: 20200358574
    Abstract: Apparatuses, methods, and systems are disclosed for transmitting device capability information. The method includes operating a device with multiple antenna port groups for communication between the device and a network. The method includes transmitting, by the device, device capability information to the network. The device capability information includes a number of antenna port groups of the multiple antenna port groups, a number of antenna ports for each of the antenna port groups, a maximum number of supported spatial layers for each of the antenna port groups, or some combination thereof.
    Type: Application
    Filed: July 27, 2020
    Publication date: November 12, 2020
    Inventors: Hyejung Jung, Vijay Nangia, Prateek Basu Mallick, Ebrahim MolavianJazi, Ravi Kuchibhotla, Joachim Loehr
  • Patent number: 10827441
    Abstract: Apparatuses, methods, and systems are disclosed for power headroom report generation. One method includes aggregating multiple serving cells. The method includes determining that a power headroom report is triggered. The method includes determining that an uplink resource for a new transmission on a serving cell of the multiple serving cells is allocated at a first time after the power headroom report is triggered. The method includes determining a power headroom value for each serving cell of the multiple serving cells being activated based on information received prior to and including a predetermined time before the start of the uplink resource at the first time. The method includes generating a power headroom report medium access control control element including at least the power headroom value for each serving cell of the multiple serving cells being activated.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: November 3, 2020
    Assignee: Lenovo (Singapore) PTE. LTD.
    Inventors: Joachim Loehr, Ebrahim MolavianJazi, Prateek Basu Mallick, Ravi Kuchibhotla