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).

  • Patent number: 11785536
    Abstract: Apparatuses and methods for scheduling for a user equipment (UE) capable of receptions over multiple antenna panels. A method for a UE includes receiving information for first search space sets and for first CORESETs on first cells. The method further includes determining second search space sets, from the first search space sets, associated with time-overlapping PDCCH receptions in second CORESETs, from the first CORESETs, on second cells from the first cells; and receiving PDCCHs according to CSS sets or USS sets, from the second search space sets, only in: (a) a first CORESET with a first TCI state, and (b) if any, a second CORESET with a second TCI state different than the first TCI state, and (c) in any other CORESET from the second CORESETs with a TCI state that is same as the first TCI state or as the second TCI state.
    Type: Grant
    Filed: December 23, 2021
    Date of Patent: October 10, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aris Papasakellariou
  • Publication number: 20230309106
    Abstract: Methods and apparatuses for multi-cell scheduling with reduced control overhead. A method for receiving physical downlink control channels (PDCCHs) includes receiving information for a first group of N1 cells and for a second group of N2 cells, determining a total number of PDCCH receptions in a slot on a scheduling cell based on N1 and on a ratio of N2 over M, and receiving a number of PDCCHs in the slot on the scheduling cell that is not larger than the total number. A PDCCH provides a downlink control information (DCI) format. The DCI format schedules one of: a physical downlink shared channel (PDSCH) reception, or a physical uplink shared channel (PUSCH) transmission, on one cell from the first group of N1 cells, or PDSCH receptions, or PUSCH transmissions, on a number of cells up to a maximum of M cells from the second group of N2 cells.
    Type: Application
    Filed: May 10, 2023
    Publication date: September 28, 2023
    Inventors: Aris Papasakellariou, Qiongjie Lin
  • Patent number: 11764930
    Abstract: A base station triggers transmission of sounding reference signals (SRS) from one or multiple user equipments (UEs) on one or multiple cells and a UE determines a power, a time instance, and other parameters for SRS transmissions in response to the triggering. An SRS transmission can be on a cell where a UE is not configured to transmit data or control information.
    Type: Grant
    Filed: June 20, 2022
    Date of Patent: September 19, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aris Papasakellariou
  • Patent number: 11764909
    Abstract: A method for a user equipment (UE) to provide hybrid automatic repeat request acknowledgement (HARQ-ACK) information includes transmitting physical sidelink shared channels (PSSCHs), where each of the PSSCH transmissions provides a transport block (TB); receiving physical sidelink feedback channels (PSFCHs); and generating values for HARQ-ACK information bits from the PSFCH receptions. The PSFCH receptions correspond to the PSSCH transmissions and the values of the HARQ-ACK information bits correspond to the TBs in the PSSCH transmissions. The method further includes generating a HARQ-ACK codeword that includes the values of the HARQ-ACK information bits arranged in a predetermined order and transmitting the HARQ-ACK codeword in a physical uplink control channel (PUCCH).
    Type: Grant
    Filed: January 13, 2022
    Date of Patent: September 19, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chao He, Aris Papasakellariou, Hongbo Si
  • Patent number: 11765693
    Abstract: Apparatuses and methods for obtaining and providing hybrid automatic repeat request acknowledgement (HARQ-ACK) information. A method for providing HARQ-ACK information includes receiving a configuration for a slot offset value and receiving a physical sidelink shared channel (PSSCH) over a number of sub-channels in a first slot. The PSSCH includes a transport block (TB). The method includes determining a second slot as an earliest slot with resources for transmission of a physical sidelink feedback channel (PSFCH) that is after the first slot by a number of slots equal to the slot offset value. The PSFCH includes the HARQ-ACK information that is in response to reception of the TB. The method further includes transmitting the PSFCH in the second slot.
    Type: Grant
    Filed: June 3, 2022
    Date of Patent: September 19, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chao He, Aris Papasakellariou
  • Patent number: 11765682
    Abstract: A first UL or SL signal received by one UE from another UE is utilized to determine: a time of arrival for the first UL or SL signal relative to a reference time for the first UL or SL signal; a propagation time for the first UL or SL signal; a distance between the UE and the other UE determined based on at least the time of arrival for the first UL or SL signal, a first round trip time for transmissions between a base station and the other UE, and a second round trip time for transmissions between the base station and the UE; and an angle of arrival relative to a coordinate system of the UE for one of a second UL signal or a second SL signal from the other UE.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: September 19, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Emad N. Farag, Aris Papasakellariou
  • Patent number: 11765716
    Abstract: Methods and apparatuses for scheduling on a cell from different cells. A method for operating a UE includes receiving first information for first and second scheduling cells of a scheduled cell and second information for receptions of physical downlink control channels (PDCCHs) from the first and second scheduling cells. The PDCCHs provide downlink control information (DCI) formats. The DCI formats schedule physical uplink shared channel (PUSCH) transmissions, or physical downlink shared channel (PDSCH) receptions, on the scheduled cell. The method further includes determining whether to receive the PDCCHs either only from the first scheduling cell or only from the second scheduling cell within a time unit based on the second information and receiving the PDCCHs either only from the first scheduling cell or only from the second scheduling cell within the time unit.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: September 19, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aris Papasakellariou
  • Publication number: 20230292333
    Abstract: Methods and apparatus are described for a User Equipment (UE) with reduced processing capabilities (e.g., Machine Type Communication (MTC) UE) to transmit and receive signaling are provided. The Downlink Control Information (DCI) formats scheduling a transmission of a Physical Uplink Shared CHannel (PUSCH) or a reception of a Physical Downlink Shared CHannel (PDSCH) are designed and have a smaller size than respective DCI formats for conventional UEs. DCI formats scheduling PUSCHs to or PDSCHs for a group of MTC UEs are also designed and can have a same size as DCI formats scheduling PUSCH or PDSCH for an individual MTC UE.
    Type: Application
    Filed: May 22, 2023
    Publication date: September 14, 2023
    Inventors: Aris PAPASAKELLARIOU, Hyoung-Ju JI, Young-Bum KIM
  • Patent number: 11758564
    Abstract: Methods and apparatuses for transmitting and receiving a physical uplink control channel (PUCCH) or a physical downlink control channel (PDCCH). A method of a UE includes receiving: a configuration for first PUCCH resources, or for first search space sets, on a first cell and a configuration for second PUCCH resources, or for second search space sets, on a second cell. The method further includes determining: a first PUCCH resource, or the first search space sets, on the first cell; a second PUCCH resource, or the second search space sets, on the second cell; and a condition. The method further includes transmitting the PUCCH using the first PUCCH resource, or receiving the PDCCH based on the first search space sets, when the condition is satisfied, and transmitting the PUCCH using the second PUCCH resource, or receiving the PDCCH based on the second search space sets, when the condition is not satisfied.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: September 12, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aris Papasakellariou
  • Patent number: 11757575
    Abstract: A method of a user equipment (UE) for constructing a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook. The method comprises receiving physical downlink control channels (PDCCHs) that convey respective downlink control information (DCI) formats, wherein each DCI format includes a counter field and a slot offset field, receiving physical downlink data channels (PDSCHs) that convey data transport blocks, detecting the DCI formats configuring the received PDSCHs, determining locations for HARQ-ACK bits in a HARQ-ACK codebook based on a value of the slot offset field and a value of the counter field in each detected DCI format, determining a time unit for transmission of the HARQ-ACK codebook based on a value of the slot offset field in each detected DCI format, and transmitting the HARQ-ACK codebook.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: September 12, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aris Papasakellariou
  • Publication number: 20230283401
    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: May 12, 2023
    Publication date: September 7, 2023
    Inventor: Aris Papasakellariou
  • Publication number: 20230275733
    Abstract: Methods and apparatuses for reduced physical downlink control channel (PDCCH) monitoring in a wireless communication system. A method for operating a user equipment includes receiving a configuration for one or more search space sets. The one or more search space sets provide parameters for one or more candidate PDCCH receptions. The method includes determining a first number of candidate PDCCH receptions for a first number of more than one consecutive slots. A candidate PDCCH reception is over a number of control channel elements (CCEs). The first number of candidate PDCCH receptions over a corresponding number of CCEs does not exceed a capability corresponding to the first number of more than one consecutive slots for a maximum number of candidate PDCCH receptions over a corresponding maximum number of non-overlapped CCEs. The method further includes receiving the first number of candidate PDCCH receptions.
    Type: Application
    Filed: May 5, 2023
    Publication date: August 31, 2023
    Inventors: Qiongjie Lin, Aris Papasakellariou
  • Patent number: 11737117
    Abstract: Methods and apparatuses for determining whether to perform transmissions or receptions. A method for a user equipment (UE) to determine whether to perform the transmissions includes receiving a n for a search space set for receptions of physical downlink control channels (PDCCHs) according to a common search space (CSS) and receiving a PDCCH that includes a downlink control information (DCI) format. The method includes determining a set of time resources and a set of frequency resources based on an indication in the DCI format and canceling a transmission of a sounding reference signal (SRS) in time resources from the set of time resources based on determining that the SRS transmission would include frequency resources from the set of frequency resources. The method includes transmitting a physical uplink control channel in time resources from the set of time resources and in frequency resources from the set of frequency resources.
    Type: Grant
    Filed: June 15, 2022
    Date of Patent: August 22, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aris Papasakellariou
  • Patent number: 11736241
    Abstract: A device and method for handling HARQ feedback in a mobile communication system are disclosed. The HARQ feedback handling method includes: analyzing a control message from a base station to recognize presence of HARQ feedback relationships between downlink carriers and uplink carriers; determining an uplink carrier (a downlink carrier) to support HARQ feedback in response to downlink traffic (uplink traffic) sent through a downlink carrier (an uplink carrier); and sending (receiving) HARQ feedback through the determined uplink carrier (downlink carrier).
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: August 22, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soeng Hun Kim, Gert-Jan Van Lieshout, Aris Papasakellariou
  • Patent number: 11729714
    Abstract: A method of a user equipment (UE) for controlling a signal comprises receiving configuration information for enabling or disabling a signal transmission, receiving a first physical downlink control channel (PDCCH) conveying a first downlink control information (DCI) format, decoding the first DCI format, determining whether the first DCI format is correctly decoded; and transmitting the signal or suspending a transmission of the signal according to the configuration information when the first DCI format is not correctly decoded.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: August 15, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aris Papasakellariou
  • Patent number: 11729793
    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: July 26, 2022
    Date of Patent: August 15, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aris Papasakellariou
  • Patent number: 11716740
    Abstract: Methods and apparatus are provided to support transmissions of control channels with coverage enhancements (CE) to low cost (LC) user equipments (LC/CE UEs) in a narrowband of a system bandwidth. A narrowband for a control channel transmission can depend on a type of information being scheduled for transmission by the control channel.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: August 1, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aris Papasakellariou
  • Patent number: 11711811
    Abstract: For multiplexing control information in a physical uplink data channel, a user equipment (UE) includes receiving a configuration for a first set of values and receiving a downlink control information (DCI) format scheduling a transmission of a physical uplink shared data channel (PUSCH) over a set of resource elements (REs) and including a field providing an index. The method further includes determining a first value from the first set of values based on the index, determining a first subset of REs from the set of REs, for multiplexing first uplink control information (UCI), based on the first value, and transmitting the first UCI in the PUSCH.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: July 25, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aris Papasakellariou
  • Patent number: 11711193
    Abstract: Enhancing reception reliability for control information or data information includes receiving: a first configuration for a CORESET and a second configuration for a second CORESET; a first PDCCH, in the first CORESET or the second CORESET, including a first DCI format; and a first PDSCH, scheduled by the first DCI format, including a TB. The method further includes transmitting a first PUCCH including a first HARQ-ACK codebook and a second PUCCH including a second HARQ-ACK codebook. HARQ-ACK information, in response to receiving the TB, is included in: the first HARQ-ACK codebook when the first PDCCH is received in the first CORESET and the second HARQ-ACK codebook when the first PDCCH is received in the second CORESET.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: July 25, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aris Papasakellariou
  • Patent number: 11711192
    Abstract: Methods and apparatuses for transmitting and receiving HARQ-ACK information. A method of operating a UE includes receiving: a configuration for a first group index for first control resource sets (CORESETs), physical downlink control channels (PDCCHs) in CORESETs, wherein the PDCCHs provide respective downlink control information (DCI) formats scheduling respective receptions of physical downlink shared channels (PDSCHs), and the PDSCHs corresponding to the PDCCHs. The method further includes determining HARQ-ACK information bits in response to a PDSCH reception. When a PDCCH reception is in a CORESET from the first CORESETs, the HARQ-ACK information bits are in a first HARQ-ACK codebook. When the PDCCH reception is not in a CORESET from the first CORESETs, the HARQ-ACK information bits are in a second HARQ-ACK codebook. The method further includes transmitting a first physical uplink control channel (PUCCH) with the first HARQ-ACK codebook and a second PUCCH with the second HARQ-ACK codebook.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: July 25, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aris Papasakellariou