Patents by Inventor Aris Papasakellariou

Aris Papasakellariou 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: 20230087510
    Abstract: Methods and apparatuses for providing hybrid automatic repeat request acknowledgement (HARQ-ACK) information. A method includes receiving a first physical downlink control channel (PDCCH) that schedules a transmission of a physical uplink shared channel (PUSCH) in a slot and receiving PDCCHs that schedule receptions of first multicast physical downlink shared channels (PDSCHs), respectively. A first number of the PDCCHs is not received after the first PDCCH, and a second number of the PDCCHs is received after the first PDCCH. The method further includes determining that transmission of a PUCCH to provide the HARQ-ACK information associated with receptions of multicast PDSCHs, that include the first multicast PDSCHs, would overlap in time with the PUSCH transmission in the slot and transmitting the PUSCH. The PUSCH includes first HARQ-ACK information associated with the first number of PDCCHs and does not include second HARQ-ACK information associated with the second number of PDCCHs.
    Type: Application
    Filed: September 2, 2022
    Publication date: March 23, 2023
    Inventor: Aris Papasakellariou
  • Patent number: 11594807
    Abstract: A method and electronic device for applying a maximum permissible exposure (MPE) operation on the electronic device. The electronic device includes a plurality of antenna arrays and a processor operably connected to the plurality of antenna arrays. The processor is configured to detect a MPE condition for radio frequency exposure and apply a MPE operation, from among a plurality of MPE operations, to at least one of the plurality of antenna arrays to modify the radio frequency exposure. The MPE operation includes coordination of at least two antenna arrays for signal transmission.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: February 28, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Boon Loong Ng, Suha Yoon, Sungchul Park, Jianhua Mo, Aris Papasakellariou
  • Patent number: 11595954
    Abstract: One or more embodiments provide a method implemented in a user equipment (UE) used in a wireless communications system. The method includes transmitting an indication to a base station that the UE is capable of transmitting on a single uplink carrier frequency and downlink carrier aggregation. The method also includes receiving an uplink carrier frequency switching pattern from the base station. The method also includes switching uplink carrier frequencies based on the uplink carrier frequency switching pattern.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: February 28, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Boon Loong Ng, Thomas David Novlan, Aris Papasakellariou, Young-Han Nam
  • Publication number: 20230059484
    Abstract: A method for a user equipment (UE) to receive physical downlink control channels (PDCCHs) with a first sub-carrier spacing (SCS) includes receiving a bitmap indicating symbols of a slot that are first symbols of control resource sets (CORESETs) for PDCCH receptions, determining, based on the bitmap, a first number of symbols that is a smallest number of symbols in between a first symbol of PDCCH receptions in first CORESETs and a first symbol of PDCCH receptions in second CORESETs, determining, based on the first number of symbols and the SCS, a first maximum number of non-overlapping control channel elements (CCEs), and receiving the PDCCHs with the first SCS according to the first maximum number of non-overlapping CCEs.
    Type: Application
    Filed: October 20, 2022
    Publication date: February 23, 2023
    Inventor: Aris Papasakellariou
  • 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: 11588606
    Abstract: Reception or transmission of physical downlink control channels (PDCCH) associated with a master node (MN) or with a secondary node (SN) involve an indication for a first number of cells Ncells,MCGcap and for a second number of cells Ncells,SCGcap. A first total number of PDCCH candidates is determined on Ncells,MCGDL,? cells of the MN over a time period according to Ncells,MCGcap and a second total number of PDCCH candidates is determined on Ncells,SCGDL,? cells of the SN over the time period according to Ncells,SCGcap. ? is a subcarrier spacing (SCS) configuration for an active bandwidth part (BWP) on each of the Ncells,MCGDL,? cells or Ncells,SCGDL,? cells.
    Type: Grant
    Filed: February 15, 2021
    Date of Patent: February 21, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Aris Papasakellariou, Qiongjie Lin
  • 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
  • Patent number: 11582733
    Abstract: A method and apparatus of a user equipment (UE) are provided. The method and apparatus comprise: identifying spatial parameters for a synchronization signals/physical broadcast channel (SS/PBCH) block and a downlink (DL) signal, wherein the spatial parameters are commonly used for receiving the SS/PBCH block and the DL signal; receiving the SS/PBCH block and the DL signal, wherein the SS/PBCH block and the DL signal are time division multiplexed in a same slot; and determining information from the DL signal.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: February 14, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Qiongjie Lin, Hongbo Si, Aris Papasakellariou
  • Patent number: 11581929
    Abstract: Beam measurement and reporting by a user equipment (UE) includes receiving configuration information for a channel state information (CSI) framework from a base station (BS) and identifying reporting settings and resource settings configured for the UE based on the received configuration information. The reporting settings configure a beam measurement and reporting configuration. The resource settings configure one or more reference signal (RS) resources for beam measurement. Each of the RS resources represents a transmit (Tx) beam. The method further includes performing beam measurement based on the identified reporting and resource settings, generating a CSI report based on the identified reporting and resource settings, and transmitting the generated CSI report to the BS.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: February 14, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Li Guo, Eko Onggosanusi, Md. Saifur Rahman, Aris Papasakellariou
  • Publication number: 20230038136
    Abstract: A method of a user equipment (UE) operating with a new radio (NR) radio access technology (RAT). The method comprises receiving synchronization signals and a master information block (MIB) in a first bandwidth (BW) and receiving a physical downlink control channel (PDCCH) in a second BW, wherein the second BW is indicated by an offset in the MIB relative to the first BW and the PDCCH conveys a downlink control information (DCI) format that configures a reception of a first system information block (SIB).
    Type: Application
    Filed: October 6, 2022
    Publication date: February 9, 2023
    Inventor: Aris Papasakellariou
  • Patent number: 11570795
    Abstract: Methods and apparatuses for PDCCH reception and transmission. A method for PDCCH reception includes transmitting a capability for receptions of PDCCHs on a downlink (DL) cell. PDCCH receptions on the DL cell are according to (X1, Y1) or (X2, Y2) when any two PDCCH receptions are within Y1 or Y2 symbols or have first symbols separated by at least X1 or X2 symbols, respectively. The method further includes receiving a configuration of search space sets for PDCCH receptions on the DL cell; determining, based on the configuration of the search space sets, whether PDCCH receptions are according to (X2, Y2); and receiving on the DL cell: a maximum number of MPDCCHmax,X1,? PDCCHs within Y1 symbols when PDCCH receptions are not according to (X2, Y2), and a maximum number of MPDCCHmax,X2,? PDCCHs within Y2 symbols when PDCCH receptions are according to (X2, Y2).
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: January 31, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aris Papasakellariou
  • Publication number: 20230027895
    Abstract: Methods and apparatuses for adaptation of parameters for configured transmissions or receptions. A method for receiving semi-persistently scheduled (SPS) physical downlink shared channels (PDSCHs) or for transmitting configured grant (CG) physical uplink shared channels (PUSCHs) includes receiving a physical downlink control channel (PDCCH) that provides a downlink control information (DCI) format; determining, based on values of first fields in the DCI format, activation of SPS PDSCH receptions or of CG PUSCH transmissions; determining, based on values of second fields in the DCI format, a time duration for the SPS PDSCH receptions or for the CG PUSCH transmissions; and receiving the SPS PDSCHs or transmitting the CG PUSCHs within the time duration.
    Type: Application
    Filed: June 24, 2022
    Publication date: January 26, 2023
    Inventors: Qiongjie Lin, Aris Papasakellariou
  • Publication number: 20230016908
    Abstract: A user equipment (UE) indicates an intent to transmit on sidelink sub-channels using a transmission indication and then monitors receptions of transmission grants transmitted from one or more other devices, such as UEs or base stations, and determines whether or not to proceed with the sidelink transmission on the sub-channels based on the received transmission grants. A device monitors transmission indications transmitted from UEs to determine a UE that can proceed with a sidelink transmission on sub-channels, and transmits a transmission grant corresponding to the UE that can proceed with the sidelink transmission on sub-channels.
    Type: Application
    Filed: September 15, 2022
    Publication date: January 19, 2023
    Inventors: Emad N. Farag, Aris Papasakellariou
  • Patent number: 11558873
    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: Grant
    Filed: November 5, 2020
    Date of Patent: January 17, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Qiongjie Lin, Aris Papasakellariou, Ebrahim MolavianJazi
  • Patent number: 11546864
    Abstract: Methods and apparatuses for managing dual connectivity. A method for operating a UE includes receiving a configuration for dynamic power sharing (DPS) between transmissions on a master cell group (MCG) and transmissions on a secondary cell group (SCG) and determining a time offset as a function of sub-carrier spacing (SCS) configurations and of configurations for a PUSCH processing capability on the MCG and on the SCG. The method further includes determining a maximum power for a PUSCH transmission on the SCG, at a beginning of the PUSCH transmission on the SCG, when each of the transmissions on the MCG is scheduled by a downlink control information (DCI) format in a PDCCH reception that ends at least the time offset before the beginning of the PUSCH transmission on the SCG. The method further includes transmitting the transmissions on the MCG and the PUSCH transmission on the SCG.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: January 3, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Aris Papasakellariou, Jung Hyun Bae
  • Publication number: 20220417979
    Abstract: Methods and apparatuses for downlink control signaling for multicast and unicast communications. A method includes receiving information for first search space sets and for second search space sets, and a physical downlink control channel (PDCCH) providing a downlink control information (DCI) format. The DCI format provides an indication for receptions of PDCCHs during an active time of a next DRX cycle according to one of: none of the first search space sets and the second search space sets, only the first search space sets, only the second search space sets, or the first search space sets and the second search space sets. The method further includes determining reception of zero or more PDCCHs for the first and second search space sets during the active time of the next DRX cycle based on the indication and receiving the PDCCHs during the active time of the next DRX cycle.
    Type: Application
    Filed: June 10, 2022
    Publication date: December 29, 2022
    Inventor: Aris Papasakellariou
  • Publication number: 20220407659
    Abstract: An apparatus and method are provided for transmitting control information and data in a DFT based communication system. The method includes placing a reference signal onto a first symbol among a plurality of symbols in one slot; placing a HARQ-ACK onto a second symbol first placed after the first symbol in the one slot; placing the data onto other symbols except for the first symbol; and transmitting a signal including the reference signal, the HARQ-ACK and the data. A part of CQI information is further placed onto at least one symbol, except for the first symbol, in case that the CQI information is present for transmission in the one slot.
    Type: Application
    Filed: August 19, 2022
    Publication date: December 22, 2022
    Inventors: Aris PAPASAKELLARIOU, Joon-Young CHO
  • Patent number: 11528724
    Abstract: A method of a user equipment (UE) operating with a new radio (NR) radio access technology (RAT). The method comprises receiving synchronization signals and a master information block (MIB) in a first bandwidth (BW) and receiving a physical downlink control channel (PDCCH) in a second BW, wherein the second BW is indicated by an offset in the MIB relative to the first BW and the PDCCH conveys a downlink control information (DCI) format that configures a reception of a first system information block (SIB).
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: December 13, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aris Papasakellariou
  • Patent number: 11528692
    Abstract: For scheduling transmissions of data channels, control channels, or random access channels using downlink control information (DCI) formats, a DCI format can configure a transmission of one or multiple data channels over respective one or multiple transmission time intervals. A first DCI format can configure the parameters for a channel transmission and a second DCI format can trigger the channel transmission and indicate respective one or more transmission time intervals.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: December 13, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aris Papasakellariou
  • Publication number: 20220394715
    Abstract: Methods, user equipment (UE), and base stations for downlink control information (DCI) formats reception or transmission are provided. A method of operating a UE to transmit a physical uplink shared channel (PUSCH) includes receiving a configuration for a number of bits for a field that indicates a parameter in a first downlink control information (DCI) format; and receiving a physical downlink control channel (PDCCH) that provides either the first DCI format scheduling the PUSCH or a second DCI format scheduling the PUSCH. The second DCI format includes a field with a predetermined number of bits that indicates the parameter. A minimum number of bits for the field in the first DCI format is smaller than the predetermined number of bits for the field in the second DCI format. The method also includes transmitting the PUSCH.
    Type: Application
    Filed: August 16, 2022
    Publication date: December 8, 2022
    Inventor: Aris Papasakellariou