Patents by Inventor Konstantinos D. Dimou

Konstantinos D. Dimou 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: 11304073
    Abstract: Embodiments of a User Equipment (UE) to operate in accordance with a physical random access channel (PRACH) are disclosed herein. The UE may comprise hardware processing circuitry to determine a coverage enhancement category for the UE based on downlink channel statistics related to reception of downlink signals at the UE from an Evolved Node-B (eNB) and an uplink-downlink imbalance parameter related to uplink reception at the eNB. The hardware processing circuitry may be further to select, for use in a coverage enhancement mode, a PRACH preamble from a set of candidate PRACH preambles based on the determined coverage enhancement category for the UE. In some embodiments, at least some of the candidate PRACH preambles may span a different number of sub-frames.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: April 12, 2022
    Assignee: Apple Inc.
    Inventors: Konstantinos D. Dimou, Gang Xiong, Seunghee Han, Hong He
  • Publication number: 20200382970
    Abstract: Embodiments of a User Equipment (UE) to operate in accordance with a physical random access channel (PRACH) are disclosed herein. The UE may comprise hardware processing circuitry to determine a coverage enhancement category for the UE based on downlink channel statistics related to reception of downlink signals at the UE from an Evolved Node-B (eNB) and an uplink-downlink imbalance parameter related to uplink reception at the eNB. The hardware processing circuitry may be further to select, for use in a coverage enhancement mode, a PRACH preamble from a set of candidate PRACH preambles based on the determined coverage enhancement category for the UE. In some embodiments, at least some of the candidate PRACH preambles may span a different number of sub-frames.
    Type: Application
    Filed: August 19, 2020
    Publication date: December 3, 2020
    Inventors: Konstantinos D. Dimou, Gang Xiong, Seunghee Han, Hong He
  • Patent number: 10771987
    Abstract: Embodiments of a User Equipment (UE) to operate in accordance with a physical random access channel (PRACH) are disclosed herein. The UE may comprise hardware processing circuitry to determine a coverage enhancement category for the UE based on downlink channel statistics related to reception of downlink signals at the UE from an Evolved Node-B (eNB) and an uplink-downlink imbalance parameter related to uplink reception at the eNB. The hardware processing circuitry may be further to select, for use in a coverage enhancement mode, a PRACH preamble from a set of candidate PRACH preambles based on the determined coverage enhancement category for the UE. In some embodiments, at least some of the candidate PRACH preambles may span a different number of sub-frames.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: September 8, 2020
    Assignee: Apple Inc.
    Inventors: Konstantinos D. Dimou, Gang Xiong, Seunghee Han, Hong He
  • Patent number: 10271224
    Abstract: An eNodeB (eNB) and user equipment (UE) are provided that detect whether the UE is in coverage enhancement mode and if so uses a modified version of the Radio Link Control (RLC) configuration in communications between the eNB and UE. Detection mechanisms may differ between the eNB and UE and may include direct signaling between the eNB and UE, the ability to receive control signaling only through particular modified signaling procedures, low power of certain received control signals or lack of response to certain control signals within various predetermined time periods. The modified RLC configuration permits a smaller amount of data than a standard RLC configuration to be transmitted by a transmitting device before a receiving device is able to be polled for information regarding reception by the receiving device of the transmitted data.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: April 23, 2019
    Assignee: Intel IP Corporation
    Inventors: Konstantinos D. Dimou, Gang Xiong, Yujian Zhang, Youn Hyoung Heo, Marta Martinez Tarradell
  • Publication number: 20180213418
    Abstract: Embodiments of a User Equipment (UE) to operate in accordance with a physical random access channel (PRACH) are disclosed herein. The UE may comprise hardware processing circuitry to determine a coverage enhancement category for the UE based on downlink channel statistics related to reception of downlink signals at the UE from an Evolved Node-B (eNB) and an uplink-downlink imbalance parameter related to uplink reception at the eNB. The hardware processing circuitry may be further to select, for use in a coverage enhancement mode, a PRACH preamble from a set of candidate PRACH preambles based on the determined coverage enhancement category for the UE. In some embodiments, at least some of the candidate PRACH preambles may span a different number of sub-frames.
    Type: Application
    Filed: March 26, 2018
    Publication date: July 26, 2018
    Inventors: Konstantinos D. Dimou, Gang Xiong, Seunghee Han, Hong He
  • Patent number: 9973944
    Abstract: Embodiments of a User Equipment (UE) to operate in accordance with a physical random access channel (PRACH) are disclosed herein. The UE may comprise hardware processing circuitry to determine a coverage enhancement category for the UE based on downlink channel statistics related to reception of downlink signals at the UE from an Evolved Node-B (eNB) and an uplink-downlink imbalance parameter related to uplink reception at the eNB. The hardware processing circuitry may be further to select, for use in a coverage enhancement mode, a PRACH preamble from a set of candidate PRACH preambles based on the determined coverage enhancement category for the UE. In some embodiments, at least some of the candidate PRACH preambles may span a different number of sub-frames.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: May 15, 2018
    Assignees: Intel Corporation, Intel IP Corporation
    Inventors: Konstantinos D. Dimou, Gang Xiong, Seunghee Han, Hong He
  • Publication number: 20170171764
    Abstract: An eNodeB (eNB) and user equipment (UE) are provided that detect whether the UE is in coverage enhancement mode and if so uses a modified version of the Radio Link Control (RLC) configuration in communications between the eNB and UE. Detection mechanisms may differ between the eNB and UE and may include direct signaling between the eNB and UE, the ability to receive control signaling only through particular modified signaling procedures, low power of certain received control signals or lack of response to certain control signals within various predetermined time periods. The modified RLC configuration permits a smaller amount of data than a standard RLC configuration to be transmitted by a transmitting device before a receiving device is able to be polled for information regarding reception by the receiving device of the transmitted data.
    Type: Application
    Filed: January 30, 2015
    Publication date: June 15, 2017
    Inventors: Konstantinos D. Dimou, Gang Xiong, Yujian Zhang, Youn Hyoung Heo, Marta Martinez Tarradell
  • Patent number: 9680627
    Abstract: Embodiments of a system and method for selecting a duplex mode for a service operating in a Wireless Network are generally described herein. In some embodiments, a mobile device may receive one or more traffic packets related to an establishment or a re-establishment of a service at the mobile device, and may select a duplex mode for the service. In some embodiments, the mobile device may be an IEEE 802.11 Station (STA). The mobile device may be configured to select full-duplex as the duplex mode when a delay requirement associated with the service is less than a predetermined delay threshold and when a calibration overhead associated with the mobile device or the service is less than a predetermined calibration overhead threshold.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: June 13, 2017
    Assignee: Intel Corporation
    Inventors: Konstantinos D. Dimou, Ehsan Aryafar, Shilpa Talwar
  • Publication number: 20170134967
    Abstract: Embodiments of a User Equipment (UE) to operate in accordance with a physical random access channel (PRACH) are disclosed herein. The UE may comprise hardware processing circuitry to determine a coverage enhancement category for the UE based on downlink channel statistics related to reception of downlink signals at the UE from an Evolved Node-B (eNB) and an uplink-downlink imbalance parameter related to uplink reception at the eNB. The hardware processing circuitry may be further to select, for use in a coverage enhancement mode, a PRACH preamble from a set of candidate PRACH preambles based on the determined coverage enhancement category for the UE. In some embodiments, at least some of the candidate PRACH preambles may span a different number of sub-frames.
    Type: Application
    Filed: September 14, 2016
    Publication date: May 11, 2017
    Inventors: Konstantinos D. Dimou, Gang Xiong, Seunghee Han, Hong He
  • Patent number: 9456405
    Abstract: Embodiments of a User Equipment (UE) to operate in accordance with a physical random access channel (PRACH) are disclosed herein. The UE may comprise hardware processing circuitry to determine a coverage enhancement category for the UE based on downlink channel statistics related to reception of downlink signals at the UE from an Evolved Node-B (eNB) and an uplink-downlink imbalance parameter related to uplink reception at the eNB. The hardware processing circuitry may be further to select, for use in a coverage enhancement mode, a PRACH preamble from a set of candidate PRACH preambles based on the determined coverage enhancement category for the UE. In some embodiments, at least some of the candidate PRACH preambles may span a different number of sub-frames.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: September 27, 2016
    Assignees: Intel Corporation, Intel IP Corporation
    Inventors: Konstantinos D. Dimou, Gang Xiong, Seunghee Han, Hong He
  • Publication number: 20160165605
    Abstract: Embodiments of the present disclosure describe apparatuses and methods for network assisted mmWave beam synchronization and alignment. Various embodiments may include an evolved Node B (eNB). The eNB may include processing circuitry to estimate directional information of an mmWave frequency beam from the eNB in reference to a user equipment (UE) based on positional information of the UE obtained based on a connection between the eNB and the UE in a microwave frequency band. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: December 5, 2014
    Publication date: June 9, 2016
    Inventors: KONSTANTINOS D. DIMOU, SHILPA TALWAR
  • Publication number: 20150382207
    Abstract: Embodiments of a system and method for selecting a duplex mode for a service operating in a Wireless Network are generally described herein. In some embodiments, a mobile device may receive one or more traffic packets related to an establishment or a re-establishment of a service at the mobile device, and may select a duplex mode for the service. In some embodiments, the mobile device may be an IEEE 802.11 Station (STA). The mobile device may be configured to select full-duplex as the duplex mode when a delay requirement associated with the service is less than a predetermined delay threshold and when a calibration overhead associated with the mobile device or the service is less than a predetermined calibration overhead threshold.
    Type: Application
    Filed: June 27, 2014
    Publication date: December 31, 2015
    Inventors: Konstantinos D. Dimou, Ehsan Aryafar, Shilpa Talwar
  • Publication number: 20150215911
    Abstract: Embodiments of a User Equipment (UE) to operate in accordance with a physical random access channel (PRACH) are disclosed herein. The UE may comprise hardware processing circuitry to determine a coverage enhancement category for the UE based on downlink channel statistics related to reception of downlink signals at the UE from an Evolved Node-B (eNB) and an uplink-downlink imbalance parameter related to uplink reception at the eNB. The hardware processing circuitry may be further to select, for use in a coverage enhancement mode, a PRACH preamble from a set of candidate PRACH preambles based on the determined coverage enhancement category for the UE. In some embodiments, at least some of the candidate PRACH preambles may span a different number of sub-frames.
    Type: Application
    Filed: September 18, 2014
    Publication date: July 30, 2015
    Inventors: Konstantinos D. Dimou, Gang Xiong, Seunghee Han, Hong He