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).

  • Patent number: 11770775
    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 by applying the determined transmit power offset, when the determined transmit power with the determined transmit power offset applied is not less than a predefined threshold value, and by not applying the determined transmit power offset, when the determined transmit power with the determined transmit power offset applied is less than the predefined threshold value.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: September 26, 2023
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Hyejung Jung, Ebrahim MolavianJazi, Hossein Bagheri, Vijay Nangia
  • Patent number: 11770744
    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: March 11, 2021
    Date of Patent: September 26, 2023
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Hyejung Jung, Prateek Basu Mallick, Joachim Loehr, Ravi Kuchibhotla, Vijay Nangia, Ebrahim MolavianJazi, Robert T. Love
  • Publication number: 20230283358
    Abstract: Apparatuses and methods for transmission timing for repeaters. A method for operating a network-controlled repeater (NCR) includes receiving, by an NCR mobile termination (NCR-MT) entity on an NCR control link, information for a timing value for an NCR forwarding (NCR-Fwd) entity. The method further includes determining, by the NCR, a timing adjustment for an NCR access link based on the timing value and a reference signal (RS). The method further includes receiving, by the NCR-Fwd entity on the NCR access link, a radio frequency (RF) signal based on the timing adjustment.
    Type: Application
    Filed: February 15, 2023
    Publication date: September 7, 2023
    Inventors: Marian Rudolf, Ebrahim MolavianJazi, Aristides Papasakellariou
  • Publication number: 20230283348
    Abstract: Apparatuses and methods for beam management for repeaters. A method for a network-controlled repeater (NCR) includes receiving, by an NCR mobile termination (NCR-MT) entity, first information for a list of spatial domain filters for an access link of an NCR forwarding (NCR-Fwd) entity, second information for a set of spatial relations corresponding to reference signals (RS) for transmission or reception on a control link (C-link) of the NCR-MT entity, and third information indicating an uplink (UL) or downlink (DL) direction for each time domain resource. The method further includes determining an UL time domain resource, a first spatial domain filter, and a second spatial domain filter based on the second information. The method further includes receiving, by the NCR-Fwd entity, a radio frequency (RF) signal on the access link using the first spatial domain filter and transmitting the RF signal on a backhaul link using the second spatial domain filter.
    Type: Application
    Filed: February 15, 2023
    Publication date: September 7, 2023
    Inventors: Ebrahim MolavianJazi, Marian Rudolf, Aristides Papasakellariou
  • Publication number: 20230208579
    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: November 11, 2022
    Publication date: June 29, 2023
    Inventors: Hyejung Jung, Vijay Nangia, Prateek Basu Mallick, Ebrahim MolavianJazi, Ravi Kuchibhotla, Joachim Loehr
  • Publication number: 20230208592
    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: February 16, 2023
    Publication date: June 29, 2023
    Inventors: Ebrahim MolavianJazi, Aris Papasakellariou
  • Publication number: 20230199674
    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: Application
    Filed: February 15, 2023
    Publication date: June 22, 2023
    Inventors: Joachim Loehr, Ebrahim MolavianJazi, Vijay Nangia, Ravi Kuchibhotla
  • Publication number: 20230139269
    Abstract: A method for acknowledgement information enhancement includes receiving first information for first cells; second information for second cells; first and second DCI formats; and N PDSCHs on N cells, from the second cells, which are scheduled by a DCI format from the second DCI formats. The method further includes determining first HARQ-ACK information bits associated with the first DCI formats and second HARQ-ACK information bits associated with the second DCI formats. The second HARQ-ACK information bits include, for the DCI format, M=?i?N Mi HARQ-ACK information bits corresponding to receptions of the N PDSCHs on N cells, in ascending order of cell indexes for the N cells and (Mmax?M) HARQ-ACK information bits with NACK values that are appended to the M HARQ-ACK information bits. The method further transmitting a channel that includes a HARQ-ACK codebook generated by appending the second HARQ-ACK information bits to the first HARQ-ACK information bits.
    Type: Application
    Filed: October 5, 2022
    Publication date: May 4, 2023
    Inventors: Ebrahim MolavianJazi, Aristides Papasakellariou
  • Publication number: 20230125571
    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: December 23, 2022
    Publication date: April 27, 2023
    Inventors: Ebrahim MolavianJazi, Aris Papasakellariou
  • Publication number: 20230129120
    Abstract: Apparatuses and methods for acknowledgement information for multi-cell scheduling in a wireless communication system. A method of a user equipment (UE) includes receiving first information for a set of cells and second information for first time-domain resource allocation (TDRA) tables. The first TDRA tables correspond to respective first cells from the set of cells. An entry of a TDRA table from the first TDRA tables indicates a time resource for a physical downlink shared channel (PDSCH) reception on a cell from the first cells. The method further includes identifying a second TDRA table, determining acknowledgment information corresponding to the set of cells based on a union of rows of the first TDRA tables and the second TDRA table, and transmitting a physical uplink control channel (PUCCH) with the acknowledgment information. An entry of the second TDRA table indicates time resources for receptions of first PDSCHs on the set of cells.
    Type: Application
    Filed: September 30, 2022
    Publication date: April 27, 2023
    Inventors: Ebrahim MolavianJazi, Aristides Papasakellariou
  • Patent number: 11611952
    Abstract: Apparatuses, methods, and systems are disclosed for uplink transmission power allocation. One method includes receiving a configuration of two uplink carriers. The method includes determining whether a configuration parameter corresponding to at least one of a first uplink carrier and a second uplink carrier for a serving cell is configured. The method includes determining whether a power headroom report is based on an actual sounding reference signal (“SRS”) transmission or a reference SRS transmission. The method includes, in response to determining that the power headroom report is based on a reference SRS transmission, selecting an uplink carrier for power headroom computation from the two uplink carriers based on whether the configuration parameter for the two uplink carriers. The method includes computing the power headroom report for the serving cell based on a reference SRS transmission on the uplink carrier.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: March 21, 2023
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Ebrahim MolavianJazi, Hyejung Jung, Vijay Nangia, Joachim Loehr, Ravi Kuchibhotla
  • Publication number: 20230076874
    Abstract: Methods and apparatuses for power control and beam management to enable coexistence of radar sensing and wireless communication. A method for a UE includes determining a sensing category or characteristics for a sensing application, and selecting a spatial filter for radar sensing transmission or reception based on determined sensing category or characteristics. The method further includes identifying a radar sensing transmission power and transmitting or receiving radar sensing signals using the spatial filter and the identified radar sensing transmission power. The method further includes reporting one of communication blockage, radar sensing beam information, or CSI adapted to the radar sensing beam information to a base station or neighboring UEs.
    Type: Application
    Filed: June 14, 2022
    Publication date: March 9, 2023
    Inventors: Jeongho Jeon, Haichuan Ding, Ebrahim MolavianJazi, Joonyoung Cho
  • Patent number: 11601896
    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: March 18, 2021
    Date of Patent: March 7, 2023
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Joachim Loehr, Ebrahim MolavianJazi, Vijay Nangia, Ravi Kuchibhotla
  • Publication number: 20230058307
    Abstract: A method and apparatus are provided in which a set of reference signals is received (2102), and a set of channel signatures for a multiple antenna communication channel is estimated (2104). Channel state information including a set of quality metrics is calculated (2106). In response to the set of quality metrics satisfying a criterion, the baseline receiver for the multiple antenna communication channel is selected (2108). In response to the set of quality metrics not satisfying the criterion, the alternative receiver for the multiple antenna communication channel is selected (2110). The selectable alternative receiver for the multiple antenna communication channel at the user equipment is based on a set of integer linear combinations, where each integer linear combination is based on at least a pair of channel signatures from the estimated set of channel signatures (2112).
    Type: Application
    Filed: February 22, 2021
    Publication date: February 23, 2023
    Inventors: Ebrahim MolavianJazi, Vijay Nangia, Ahmed Hindy
  • Publication number: 20230057605
    Abstract: Methods and apparatuses for physical downlink control channel (PDCCH) monitoring for multi-cell scheduling. A method for a user equipment (UE) includes receiving first information indicating a set of cells that includes more than one cell, second information indicating a first search space set that is associated with a DCI format for scheduling on multiple cells, and third information indicating an indicator value corresponding to the set of cells. The method further includes determining an association between the first search space set and the set of cells, and, based on the first search space set and the indicator value, control channel elements (CCEs) for receptions of PDCCH candidates; and receiving the PDCCH candidates over the CCEs.
    Type: Application
    Filed: July 18, 2022
    Publication date: February 23, 2023
    Inventors: Ebrahim MolavianJazi, Aristides Papasakellariou
  • Publication number: 20230058165
    Abstract: Apparatuses, methods, and systems are disclosed for transmission power prioritization. One apparatus includes a processor coupled to a memory and a transceiver, where the processor is configured to identify a first pending transmission corresponding to a non-supplementary uplink carrier; identify a second pending transmission corresponding to a supplementary uplink carrier, wherein the first and second pending transmissions at least partially overlap in time; prioritize power allocation to the non-supplementary uplink carrier in response to the non-supplementary uplink carrier being configured to transmit a PUCCH; prioritize power allocation to the supplementary uplink carrier in response to the supplementary uplink carrier being configured to transmit the PUCCH; and prioritize power allocation to the non-supplementary uplink carrier in response to neither the supplementary uplink carrier nor the non-supplementary uplink carrier being configured to transmit the PUCCH.
    Type: Application
    Filed: November 7, 2022
    Publication date: February 23, 2023
    Inventors: Ebrahim MolavianJazi, Joachim Loehr, Hyejung Jung, Vijay Nangia, Prateek Basu Mallick
  • Patent number: 11588602
    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: Grant
    Filed: December 9, 2020
    Date of Patent: February 21, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ebrahim MolavianJazi, Aris Papasakellariou
  • Patent number: 11589396
    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: Grant
    Filed: April 12, 2022
    Date of Patent: February 21, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ebrahim MolavianJazi, Aris Papasakellariou
  • Publication number: 20230053082
    Abstract: Methods and apparatuses for coverage enhancement of Msg3. A method for operating a user equipment includes receiving a system information block (SIB) that provides information mapping physical random access channel (PRACH) resources to enable or disable repetitions for a physical uplink shared channel (PUSCH) transmission in a random access procedure and a first time domain resource allocation (TDRA) table. An entry of the first TDRA table indicates a number of repetitions of a PUSCH transmission. The method further includes determining a PRACH resource for transmission of a PRACH, determining, based on the PRACH resource, a TDRA table from between the first TDRA table or a predetermined second TDRA table. No entry of the second TDRA table indicates a number of repetitions for a PUSCH transmission. The method further includes receiving a first grant scheduling transmission of a first PUSCH and transmitting the first PUSCH.
    Type: Application
    Filed: October 6, 2022
    Publication date: February 16, 2023
    Inventors: Carmela Cozzo, Aristides Papasakellariou, Ebrahim MolavianJazi
  • Patent number: 11570722
    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 20, 2021
    Date of Patent: January 31, 2023
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Ebrahim MolavianJazi, Vijay Nangia, Hyejung Jung