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: 20210352642
    Abstract: Methods and apparatuses for a User Equipment (UE) to receive signaling of UE-common Downlink Control Information (DCI) in a set of Physical Resource Blocks (PRBs) over a Transmission Time Interval (TTI) are provided. The method includes receiving, from a transmission point, a broadcast signal; determining a first set of PRBs for a first PDCCH based on the broadcast signal; determining a second set of PRBs for a second PDCCH based on a higher layer signaling; receiving, from the transmission point, first DCI on a first PDCCH in the first set of PRBs; and receiving, from the transmission point, second DCI on a second PDCCH in the second set of PRBs. A CRC of the first DCI is associated with an SI-RNTI, a CRC of the second DCI is associated with a C-RNTI, an RS is determined based on an identity of the transmission point, in a case that the RS is received in the first set of PRBs, and the RS is determined based on the higher layer signaling, in a case that the RS is received in the second set of PRBs.
    Type: Application
    Filed: July 26, 2021
    Publication date: November 11, 2021
    Inventors: Aris Papasakellariou, Hyoung-Ju Ji
  • Patent number: 11172497
    Abstract: A method of a user equipment (UE) for transmitting acknowledgement information. The method comprises receiving a physical downlink control channel conveying a downlink control information (DCI) format, a physical downlink shared channel conveying one or more data transport blocks scheduled by the DCI format, and configuration information for transmission of a physical uplink control channel (PUCCH) conveying acknowledgement information in response to the reception of the one or more data transport blocks; and transmitting the PUCCH in time-frequency resources within a first slot. An index of the first slot is configured by the DCI format. The time-frequency resources within the first slot are configured by the DCI format through a configuration of an index of a first symbol, a number of consecutive slot symbols, and an index of a first frequency resource block.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: November 9, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aris Papasakellariou
  • Patent number: 11172480
    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: Grant
    Filed: May 12, 2020
    Date of Patent: November 9, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Aris Papasakellariou, Hyoung-Ju Ji, Young-Bum Kim
  • Publication number: 20210337519
    Abstract: Methods and apparatuses for assisted sensing for sidelink resource selection. A first user equipment (UE) receives a physical sidelink (SL) control channel (PSCCH) or a physical SL shared channel (PSSCH) on a SL interface, performs a first sensing of the SL interface, determines first information for a first SL resource selection based at least on the first sensing, determines a first SL resource, multiplexes the first information in a first SL channel, and transmits the first SL channel in the first SL resource to a second UE. The second UE receives a first SL channel from a first UE on a first SL resource of a SL interface, determines an applicability of first information provided by the SL channel, selects a second SL resource based on the first information when the information is determined to be applicable, and transmits on the second SL resource.
    Type: Application
    Filed: April 7, 2021
    Publication date: October 28, 2021
    Inventors: Emad N. Farag, Aris Papasakellariou
  • Publication number: 20210329635
    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: Application
    Filed: June 30, 2021
    Publication date: October 21, 2021
    Inventors: Boon Loong Ng, Thomas Novlan, Aris Papasakellariou, Young-Han Nam
  • Publication number: 20210329626
    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: Application
    Filed: June 30, 2021
    Publication date: October 21, 2021
    Inventor: Aris Papasakellariou
  • Patent number: 11153881
    Abstract: A user equipment (UE) in communication with a base station is configured by the base station for operation with an adapted time division duplex (TDD) uplink-downlink (UL-DL) configuration. A process enables UL power control for transmissions of various channels or signals from the UE in two different sets of UL transmission time intervals (TTIs) and a process enabling receptions of data transport blocks by the base station in two different sets of UL TTIs.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: October 19, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aris Papasakellariou
  • Patent number: 11147050
    Abstract: Disclosed is a method for monitoring downlink control information in a communication system, including receiving information for an orthogonal frequency division multiplex (OFDM) symbol and information for frequency resources through higher layer signaling, and monitoring the downlink control information on a control region defined based on the information for the OFDM symbol and the information for the frequency resources, wherein the control region includes a user equipment (UE)-dedicated search space and a UE-common search space.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: October 12, 2021
    Inventors: Aris Papasakellariou, Joon-Young Cho
  • Publication number: 20210314931
    Abstract: Methods and apparatuses for UL reference signal-based beam management. A method of operating a UE includes receiving configuration information for UL reference signals for beam management, source reference signals for spatial relation, and a beam report; receiving the source reference signals; and measuring a signal quality metric for the source reference signals for spatial relation. The method further includes transmitting a beam report based on measured signal quality metric and receiving, in response to the beam report, updated configuration information for the UL reference signals for beam management. The method further includes determining a time for update of the UL reference signals for beam management and transmitting the UL reference signals for beam management based on the updated configuration information at the determined time.
    Type: Application
    Filed: March 26, 2021
    Publication date: October 7, 2021
    Inventors: Emad N. Farag, Eko Onggosanusi, Md. Saifur Rahman, Aris Papasakellariou
  • Publication number: 20210314874
    Abstract: Methods and apparatus are provided for a User Equipment (UE) configured by a Master enhanced NodeB (MeNB) for operation with dual connectivity to a Secondary eNB (SeNB) to determine a power for transmission to the MeNB and a power for transmission to the SeNB in a subframe when a total power the UE determines according to power control processes for transmission to the MeNB and for transmission to the SeNB exceeds a maximum transmission power in the subframe. Methods and apparatus are also provided for the MeNB to select one or more antenna ports the UE uses to transmit to the MeNB and inform the selected antenna ports to the UE.
    Type: Application
    Filed: June 21, 2021
    Publication date: October 7, 2021
    Inventors: Aris Papasakellariou, Boon Loong Ng
  • Publication number: 20210306055
    Abstract: Methods and apparatuses for a multi-beam downlink and uplink wireless system. A method of a user equipment includes receiving configuration information for one or more transmission configuration indication (TCI) states and corresponding TCI state identifiers (IDs) and receiving one or more TCI state IDs. The method also includes determining, based on the one or more TCI state IDs, at least one of one or more first spatial domain filters for reception of one or more layers, respectively, of a downlink channel and one or more second spatial domain filters for transmission of one or more layers, respectively, of an uplink channel. The method further includes at least one of receiving the one or more layers of the downlink channel using the one or more first spatial domain filters, respectively, and transmitting the one or more layers of the uplink channel using the one or more second spatial domain filters, respectively.
    Type: Application
    Filed: March 10, 2021
    Publication date: September 30, 2021
    Inventors: Emad N. Farag, Eko Onggosanusi, Md. Saifur Rahman, Aris Papasakellariou
  • Publication number: 20210307023
    Abstract: A method of a first user equipment (UE) in a wireless communication system is provided. The method comprises: receiving, from a second UE via a sidelink, signals including information to select resources for at least one of aperiodic traffic or periodic traffic; decoding sidelink control information (SCI) from the information included in the signals; performing, over a sensing window, a signal measurement of the received signals; identifying a resource selection window based on a latency requirement; reserving the resources for the at least one of aperiodic traffic or periodic traffic in a frequency domain and a time domain based on the decoded SCI and a result of the signal measurement, the resources being identified within a resource selection window; and transmitting, to the second UE via the sidelink, the at least one of aperiodic traffic or periodic traffic using the reserved resources.
    Type: Application
    Filed: June 11, 2021
    Publication date: September 30, 2021
    Inventors: Chao He, Aris Papasakellariou, Li Guo
  • Patent number: 11129140
    Abstract: A method for a user equipment (UE) to determine locations for M candidate physical downlink control channels (PDCCHs) in a set of N physical resource blocks (PRBs) in a transmission time interval (TTI) is provided. The method includes determining a location for each of M candidate PDCCHs in a different PRB if N is greater than or equal to M and determining a location for each of N candidate PDCCHs in a different PRB and determining a location for each of remaining M?N candidate PDCCHs in a different PRB if M is greater than N and 2N is greater than or equal to M.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: September 21, 2021
    Inventors: Aris Papasakellariou, Hyoung-Ju Ji, Jin-Kyu Han
  • Patent number: 11128407
    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: December 20, 2019
    Date of Patent: September 21, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aris Papasakellariou
  • Patent number: 11129166
    Abstract: Disclosed is a method for transmitting acknowledgement information by a user equipment in a wireless communication system, including receiving information indicating a resource for transmission of the acknowledgement information on a downlink control channel, determining a resource for transmitting the acknowledgement information based on the received information, and transmitting the acknowledgement information on the determined resource.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: September 21, 2021
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Aris Papasakellariou, Joon-Young Cho
  • Patent number: 11121824
    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: December 20, 2019
    Date of Patent: September 14, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aris Papasakellariou
  • Patent number: 11115159
    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: June 1, 2020
    Date of Patent: September 7, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soeng Hun Kim, Gert-Jan Van Lieshout, Aris Papasakellariou
  • Publication number: 20210274554
    Abstract: Methods and apparatuses for random access procedures in a wireless communication system. A method for operating a user equipment (UE) includes receiving a system information block (SIB) in a downlink bandwidth (DL) part (BWP). The DL BWP is linked to a first uplink (UL) BWP. The SIB includes an indication for one or more UL BWPs. The method further includes transmitting a physical random access channel (PRACH) in a second UL BWP from the one or more UL BWPs. The second UL BWP is different than the first UL BWP.
    Type: Application
    Filed: February 23, 2021
    Publication date: September 2, 2021
    Inventors: Carmela Cozzo, Aris Papasakellariou
  • Publication number: 20210274493
    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: Application
    Filed: May 21, 2021
    Publication date: September 2, 2021
    Inventor: Aris Papasakellariou
  • Patent number: RE48784
    Abstract: A method and apparatus for transmitting a reference signal from a User Equipment (UE) are provided. The method includes transmitting a first reference signal using a sequence determined from an identity of the at least one transmission point and transmitting a second reference signal with a transmission power having an offset with a first maximum value configured by higher layer signaling from the at least one transmission point; and transmitting a first reference signal using a sequence configured to the UE by higher layer signaling from the at least one transmission point and transmitting a second reference signal with a transmission power having an offset with a second maximum value configured by higher layer signaling from the at least one transmission point, wherein the second maximum value is larger than the first maximum value, and the first reference signal and the second reference signal are either identical or non-identical.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: October 19, 2021
    Inventors: Aris Papasakellariou, Joon-Young Cho