Patents by Inventor Satha Sathananthan

Satha Sathananthan 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: 9894532
    Abstract: In a wireless communications network providing a machine-type communications (MTC) service, a portion of a frequency spectrum is allocated to a MTC device to communicate between a base station and other MTC devices. MTC system information is transmitted/received from/to the MTC device through the portion of the frequency spectrum and may include channel information. The portion of the frequency spectrum may be used for a Long Term Evolution (LTE) wireless communication network.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: February 13, 2018
    Assignee: NEC Corporation
    Inventors: Phong Nguyen, Satha Sathananthan
  • Patent number: 9338781
    Abstract: A method for transmitting and receiving a carrier segment in a wireless communications system, including a base station and a user equipment, is disclosed. The carrier segment includes a first band having a first bandwidth and a second band having a second bandwidth, wherein a first segment gap is disposed in a frequency domain between the first band and the second band.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: May 10, 2016
    Assignee: NEC Corporation
    Inventors: Phong Nguyen, Satha Sathananthan
  • Patent number: 9271282
    Abstract: A method implemented in a base station used in a wireless communications system is disclosed. The method includes transmitting, to a user equipment (UE), an indication of a type of enhanced physical downlink control channel (ePDCCH) transmission, where the type of ePDCCH transmission comprises either localized transmission or distributed transmission, and transmitting, to the UE, an indication of the number of physical resource block (PRB) pairs allocated for the ePDCCH transmission, where the indication of the number of PRB pairs allocated for the ePDCCH transmission is conveyed in 2 or 3 bits. Other methods, apparatuses, and systems also are disclosed.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: February 23, 2016
    Assignee: NEC Corporation
    Inventor: Satha Sathananthan
  • Publication number: 20150195817
    Abstract: A method implemented in a base station used in a wireless communications system is disclosed. The method includes transmitting, to a user equipment (UE), an indication of a type of enhanced physical downlink control channel (ePDCCH) transmission, where the type of ePDCCH transmission comprises either localized transmission or distributed transmission, and transmitting, to the UE, an indication of the number of physical resource block (PRB) pairs allocated for the ePDCCH transmission, where the indication of the number of PRB pairs allocated for the ePDCCH transmission is conveyed in 2 or 3 bits. Other methods, apparatuses, and systems also are disclosed.
    Type: Application
    Filed: February 4, 2013
    Publication date: July 9, 2015
    Applicant: NEC CORPORATION
    Inventor: Satha Sathananthan
  • Publication number: 20140348090
    Abstract: There is provided a method implemented in a base station (11) of providing control information to a UE (13) over a wireless communications system (10). This method includes: scrambling (32) an E-PDCCH including the control information; modulating the E-PDCCH; mapping (34) the E-PDCCH on an allocated PRB; and transmitting (12) the E-PDCCH to the UE (13). The UE (13) communicates over the wireless communications system (10) according to the control information.
    Type: Application
    Filed: November 6, 2012
    Publication date: November 27, 2014
    Applicant: NEC CORPORATION
    Inventors: Phong Nguyen, Satha Sathananthan
  • Publication number: 20140341141
    Abstract: In a wireless communications network providing a machine-type communications (MTC) service, a portion of a frequency spectrum is allocated to a MTC device to communicate between a base station and other MTC devices. MTC system information is transmitted/received from/to the MTC device through the portion of the frequency spectrum and may include channel information. The portion of the frequency spectrum may be used for a Long Term Evolution (LTE) wireless communication network.
    Type: Application
    Filed: November 8, 2012
    Publication date: November 20, 2014
    Applicant: NEC Corporation
    Inventors: Phong Nguyen, Satha Sathananthan
  • Publication number: 20140301232
    Abstract: A method of measuring Channel State Information (CSI) in a multiple input/multiple output (MIMO) communication system including at least one base station (eNodeB) and at least one User Equipment (UE), the method including: receiving a Channel State Information Reference Signal (CSI-RS) carried in a sub-frame of a radio frame of the communication system at the at least one UE from the at least one eNodeB over at least one downlink. channel therebetween; extracting CSI-RS Resource Elements (RE) from the CSI-RS sub-frame; and using the extracted CSI-RS REs to perform downlink channel estimations for active pairs of receiving and transmitting antennas of the UE and the eNodeB respectively to derive the CSI.
    Type: Application
    Filed: September 19, 2012
    Publication date: October 9, 2014
    Applicant: NEC CORPORATION
    Inventors: Chaitanya Rao, Kevin Lin, Satha Sathananthan, Phong Nguyen
  • Publication number: 20140226610
    Abstract: A method for transmitting and receiving a carrier segment in a wireless communications system, including a base station and a user equipment, is disclosed. The carrier segment includes a first band having a first bandwidth and a second band having a second bandwidth, wherein a first segment gap is disposed in a frequency domain between the first band and the second band.
    Type: Application
    Filed: September 5, 2012
    Publication date: August 14, 2014
    Applicant: NEC CORPORATION
    Inventors: Phong Nguyen, Satha Sathananthan
  • Publication number: 20140126513
    Abstract: A method of providing control information for user equipments (UEs) in communication with a base station over a wireless communication system includes: mapping at least one enhanced-physical downlink control channel (E-PDCCH) on at least one allocated pair of physical resource blocks (PRBs) according to an enhanced-control channel element (ECCE) structure including a variable number of resource element groups (REGs); and varying the number of REGs in an E-CCE structure.
    Type: Application
    Filed: February 18, 2013
    Publication date: May 8, 2014
    Inventors: Phong Nguyen, Satha Sathananthan, Kevin Lin
  • Patent number: 8457225
    Abstract: The present invention relates to methods that can be used in a wireless communication system, and systems adapted to use such methods. In a preferred form the methods are useful in channel estimation in a wireless communication system using orthogonal frequency division multiplexing (OFDM). The system is provided with a control block to optimize channel estimation.
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: June 4, 2013
    Assignee: NEC Corporation
    Inventors: Satha Sathananthan, Kevin Lin, Thanh Bui, Dobrica Vasic
  • Patent number: 8406355
    Abstract: The present invention relates to methods that can be used in a wireless communication system, and systems adapted to use such methods. In a preferred form the methods are useful in channel estimation in a wireless communication system using orthogonal frequency division multiplexing (OFDM). The system is provided with a control block to optimize channel estimation.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: March 26, 2013
    Assignee: NEC Corporation
    Inventors: Satha Sathananthan, Kevin Lin, Thanh Bui, Dobrica Vasic
  • Publication number: 20100290570
    Abstract: The present invention relates to methods that can be used in a wireless communication system, and systems adapted to use such methods. In a preferred form the methods are useful in channel estimation in a wireless communication system using orthogonal frequency division multiplexing (OFDM). The system is provided with a control block to optimise channel estimation.
    Type: Application
    Filed: August 14, 2008
    Publication date: November 18, 2010
    Inventors: Satha Sathananthan, Kevin Lin, Thanh Bui, Dobrica Vasic
  • Publication number: 20100136919
    Abstract: The present invention relates to methods that can be used in a wireless communication system, and systems adapted to use such methods. In a preferred form the methods are useful in channel estimation in a wireless communication system using orthogonal frequency division multiplexing (OFDM). The system is provided with a control block to optimise channel estimation.
    Type: Application
    Filed: July 28, 2008
    Publication date: June 3, 2010
    Inventors: Satha Sathananthan, Kevin Lin, Thanh Bui, Dobrica Vasic