Patents by Inventor Zahide Ozlem Celik

Zahide Ozlem Celik 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).

  • Selecting a data unit for retransmission
    Patent number: 9461776
    Abstract: An event is detected relating to failure to receive an acknowledgment of a particular data unit transmitted by the first wireless node. According to a predefined criterion, a data unit is selected from a plurality of unacknowledged data units for retransmission.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: October 4, 2016
    Assignee: BlackBerry Limited
    Inventors: Zahide Ozlem Celik, Song Ni, Shuhratchon Shuhrat Ochilov, Takashi Suzuki
  • Handling packet data convergence protocol data units
    Patent number: 8958422
    Abstract: Systems, apparatus and methods can be implemented for handling packet data convergence protocol (PDCP) protocol data units (PDUs). A described technique includes receiving a packet data convergence protocol (PDCP) protocol data unit (PDU). It can be determined whether the received PDCP PDU is a duplicate PDCP PDU or that the received PDCP PDU is outside of a reordering window. The received PDCP PDU can be discarded without performing deciphering or header decompression for the received PDCP PDU.
    Type: Grant
    Filed: March 17, 2012
    Date of Patent: February 17, 2015
    Assignee: BlackBerry Limited
    Inventors: Zahide Ozlem Celik, Mahmet Bilgin
  • Handling Packet Data Convergence Protocol Data Units
    Publication number: 20130242859
    Abstract: Systems, apparatus and methods can be implemented for handling packet data convergence protocol (PDCP) protocol data units (PDUs). A described technique includes receiving a packet data convergence protocol (PDCP) protocol data unit (PDU). It can be determined whether the received PDCP PDU is a duplicate PDCP PDU or that the received PDCP PDU is outside of a reordering window. The received PDCP PDU can be discarded without performing deciphering or header decompression for the received PDCP PDU.
    Type: Application
    Filed: March 17, 2012
    Publication date: September 19, 2013
    Inventors: Zahide Ozlem Celik, Mahmet Bilgin
  • SELECTING A DATA UNIT FOR RETRANSMISSION
    Publication number: 20130194933
    Abstract: An event is detected relating to failure to receive an acknowledgment of a particular data unit transmitted by the first wireless node. According to a predefined criterion, a data unit is selected from a plurality of unacknowledged data units for retransmission.
    Type: Application
    Filed: January 27, 2012
    Publication date: August 1, 2013
    Inventors: Zahide Ozlem Celik, Song Ni, Shuhratchon Shuhrat Ochilov, Takashi Suzuki