Patents by Inventor Nimal Senarath

Nimal Senarath 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: 9037172
    Abstract: To schedule uplink transmission time slots for a collection of mobile communication devices, a set of base station target interference patterns is associated with base stations. A time slot target interference pattern is assigned for each time slot and it repeats after several time slots. The time slot target interference pattern in a given time slot specifies the interference allowed by each time slot to a given base station by any single mobile. A priority index may be determined for each time slot for each mobile associated with the particular base station. The priority index may be based, in part, on a determined correlation between the time-slot target interference patterns and a potential interference profile of a mobile to which a time slot is to be allocated. A mobile's throughput requirement, the throughput already received over a specified past duration, the system fairness requirement, as well as the amount of data available for transmission are also used for evaluating the priority index.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: May 19, 2015
    Assignee: APPLE INC.
    Inventors: Nimal Senarath, Kelvin Kar-Kin Au, Shalini Periyalwar
  • Publication number: 20150004993
    Abstract: Systems and methods are provided for delivering both PMP communications, for example standard cellular communications via a base station, and also delivering P2P communications, for example, communications between two mobile stations, using the same spectral resources for both types of communication.
    Type: Application
    Filed: September 17, 2014
    Publication date: January 1, 2015
    Inventors: Shalini Periyalwar, Hang Zhang, Nimal Senarath, Derek Yu, Kelvin Kar-Kin Au, Karl Mann
  • Publication number: 20140080495
    Abstract: Systems and methods are provided for delivering both PMP communications, for example standard cellular communications via a base station, and also delivering P2P communications, for example, communications between two mobile stations, using the same spectral resources for both types of communication.
    Type: Application
    Filed: November 18, 2013
    Publication date: March 20, 2014
    Applicant: Apple Inc.
    Inventors: Shalini Periyalwar, Hang Zhang, Nimal Senarath, Derek Yu, Kelvin Kar-Kin, Karl Mann
  • Publication number: 20130329695
    Abstract: The present invention provides a method and system for facilitating efficient handoff and data throughput in mobile broadband communication systems. Methods implemented by a system constructed in accordance with the principles of the present invention include selectively enabled soft handoff, performing Layer 2 bearer functions at the base station and using the mobile device to coordinate soft handoff and interference avoidance without the need for a centralized coordination function.
    Type: Application
    Filed: May 13, 2013
    Publication date: December 12, 2013
    Applicant: APPLE INC.
    Inventors: Nimal Senarath, Bill Gage, Shalini Periyalwar, Wen Tong
  • Patent number: 8588836
    Abstract: Systems and methods are provided for delivering both PMP communications, for example standard cellular communications via a base station, and also delivering P2P communications, for example, communications between two mobile stations, using the same spectral resources for both types of communication.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: November 19, 2013
    Assignee: Apple Inc.
    Inventors: Shalini Periyalwar, Hang Zhang, Nimal Senarath, Derek Yu, Kelvin Kar-Kin Au, Kari Mann
  • Patent number: 8576882
    Abstract: A method and system for wireless communication in which a plurality of media access control (“MAC”) packet data units (“PDUs”) corresponding to a plurality of wireless communication connections are received. The plurality of MAC PDUs is grouped into a relay packet and the relay packet is transmitted. Such grouping and transmission of the relay packet is performed by one or more relay nodes. The traffic control for the transmission can also be based on centralized or decentralized routing control and/or centralized or decentralized QoS control.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: November 5, 2013
    Assignee: BlackBerry Limited
    Inventors: Hang Zhang, Peiying Zhu, Mo-Han Fong, Wen Tong, Nimal Senarath, Derek Yu, David Steer, Curtis S. Dodd
  • Publication number: 20130250858
    Abstract: The present invention provides a method and system for facilitating efficient handoff and data throughput in mobile broadband communication systems. Methods implemented by a system constructed in accordance with the principles of the present invention include selectively enabled soft handoff, performing Layer 2 bearer functions at the base station and using the mobile device to coordinate soft handoff and interference avoidance without the need for a centralized coordination function.
    Type: Application
    Filed: May 13, 2013
    Publication date: September 26, 2013
    Applicant: APPLE INC.
    Inventors: Nimal Senarath, Bill Gage, Shalini Periyalwar, Wen Tong
  • Patent number: 8503299
    Abstract: A method and system for packet scheduling are provided. The method includes: the step of receiving an incoming packet; extracting packet identification information associated with the incoming packet, and assessing a delay budget for the incoming packet in dependence upon its arrival time and the associated information. The system includes: an input module for receiving an incoming packet, and extracting information associated with the incoming packet, and a module for assessing a delay budget for the incoming packet in dependence upon its arrival time and the associated information.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: August 6, 2013
    Assignee: Apple, Inc.
    Inventors: Nimal Senarath, Paul Coverdale, Hongyi Li, Shalini Periyalwar, Koon Hoo Teo
  • Patent number: 8442009
    Abstract: The present invention provides a method and system for facilitating efficient handoff and data throughput in mobile broadband communication systems. Methods implemented by a system constructed in accordance with the principles of the present invention include selectively enabled soft handoff, performing Layer 2 bearer functions at the base station and using the mobile device to coordinate soft handoff and interference avoidance without the need for a centralized coordination function.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: May 14, 2013
    Assignee: Apple Inc.
    Inventors: Nimal Senarath, Bill Gage, Shalini Periyalwar, Wen Tong
  • Patent number: 8437760
    Abstract: The present invention provides a method and system for facilitating efficient handoff and data throughput in mobile broadband communication systems. Methods implemented by a system constructed in accordance with the principles of the present invention include selectively enabled soft handoff, performing Layer 2 bearer functions at the base station and using the mobile device to coordinate soft handoff and interference avoidance without the need for a centralized coordination function.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: May 7, 2013
    Assignee: Apple Inc.
    Inventors: Nimal Senarath, Bill Gage, Shalini Periyalwar, Wen Tong
  • Patent number: 8437761
    Abstract: The present invention provides a method and system for facilitating efficient handoff and data throughput in mobile broadband communication systems. Methods implemented by a system constructed in accordance with the principles of the present invention include selectively enabled soft handoff, performing Layer 2 bearer functions at the base station and using the mobile device to coordinate soft handoff and interference avoidance without the need for a centralized coordination function.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: May 7, 2013
    Assignee: Apple Inc.
    Inventors: Nimal Senarath, Bill Gage, Shalini Periyalwar, Wen Tong
  • Patent number: 8391902
    Abstract: To schedule uplink transmission time slots for a collection of mobile communication devices, a set of base station target interference patterns is associated with base stations. A time slot target interference pattern is assigned for each time slot and it repeats after several time slots. The time slot target interference pattern in a given time slot specifies the interference allowed by each time slot to a given base station by any single mobile. A priority index may be determined for each time slot for each mobile associated with the particular base station. The priority index may be based, in part, on a determined correlation between the time-slot target interference patterns and a potential interference profile of a mobile to which a time slot is to be allocated.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: March 5, 2013
    Assignee: Apple Inc.
    Inventors: Nimal Senarath, Kelvin Kar-Kin Au, Shalini Periyalwar
  • Publication number: 20130016651
    Abstract: A method and system for wireless communication in which a plurality of media access control (“MAC”) packet data units (“PDUs”) corresponding to a plurality of wireless communication connections are received. The plurality of MAC PDUs is grouped into a relay packet and the relay packet is transmitted. Such grouping and transmission of the relay packet is performed by one or more relay nodes. The traffic control for the transmission can also be based on centralized or decentralized routing control and/or centralized or decentralized QoS control.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 17, 2013
    Inventors: Hang ZHANG, Peiying ZHU, Mo-Han FONG, Wen TONG, Nimal SENARATH, Derek YU, David STEER, Curtis S. DODD
  • Publication number: 20130010680
    Abstract: A wireless network includes a base station and a relay station for extending wireless coverage of the base station. Downlink data is sent by the base station and relayed through the relay station to a mobile station, where the downlink data is associated with a preamble that is sent directly from the base station to the mobile station. A transmit power of the relay station is adjusted for transmitting the downlink data from the relay station to the mobile station to reduce a difference between a first power level of the preamble received at the mobile station and a second power level of the downlink data received at the mobile station. The uplink transmit power of the mobile station t for the data sent to the relay station is adjusted to compensate for the difference in path loss from mobile station to base station and mobile station to relay station and to compensate for the difference in noise_plus_interference level at relay station compared to that of the base station.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Inventors: Nimal Senarath, David Steer, Derek Yu, Hang Zhang, Peiying Zhu, Wen Tong, Israfil Bahceci
  • Patent number: 8320826
    Abstract: A wireless network includes a base station and a relay station for extending wireless coverage of the base station. Downlink data is sent by the base station and relayed through the relay station to a mobile station, where the downlink data is associated with a preamble that is sent directly from the base station to the mobile station. A transmit power of the relay station is adjusted for transmitting the downlink data from the relay station to the mobile station to reduce a difference between a first power level of the preamble received at the mobile station and a second power level of the downlink data received at the mobile station. The uplink transmit power of the mobile station for the data sent to the relay station is adjusted to compensate for the difference in path loss from mobile station to base station and mobile station to relay station and to compensate for the difference in noise_plus_interference level at relay station compared to that of the base station.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: November 27, 2012
    Assignee: Research In Motion Limited
    Inventors: Nimal Senarath, David Steer, Derek Yu, Hang Zhang, Peiying Zhu, Wen Tong, Israfil Bahceci
  • Publication number: 20120294209
    Abstract: Systems and methods are provided for delivering both PMP communications, for example standard cellular communications via a base station, and also delivering P2P communications, for example, communications between two mobile stations, using the same spectral resources for both types of communication.
    Type: Application
    Filed: August 3, 2012
    Publication date: November 22, 2012
    Inventors: Shalini Periyalwar, Hang Zhang, Nimal Senarath, Derek Yu, Kelvin Kar-Kin Au, Kari Mann
  • Patent number: 8260337
    Abstract: Systems and methods are provided for delivering both PMP communications, for example standard cellular communications via a base station, and also delivering P2P communications, for example, communications between two mobile stations, using the same spectral resources for both types of communication.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: September 4, 2012
    Assignee: Apple Inc.
    Inventors: Shalini Periyalwar, Hang Zhang, Nimal Senarath, Derek Yu, Kelvin Kar-Kin Au, Karl Mann
  • Publication number: 20120214523
    Abstract: To schedule uplink transmission time slots for a collection of mobile communication devices, a set of base station target interference patterns is associated with base stations. A time slot target interference pattern is assigned for each time slot and it repeats after several time slots. The time slot target interference pattern in a given time slot specifies the interference allowed by each time slot to a given base station by any single mobile. A priority index may be determined for each time slot for each mobile associated with the particular base station. The priority index may be based, in part, on a determined correlation between the time-slot target interference patterns and a potential interference profile of a mobile to which a time slot is to be allocated.
    Type: Application
    Filed: March 22, 2012
    Publication date: August 23, 2012
    Applicant: ROCKSTAR BIDCO, LP
    Inventors: NIMAL SENARATH, KELVIN KAR-KIN AU, SHALINI PERIYALWAR
  • Patent number: 8150432
    Abstract: To schedule uplink transmission time slots for a collection of mobile communication devices, a set of base station target interference patterns is associated with base stations. A time slot target interference pattern is assigned for each time slot and it repeats after several time slots. The time slot target interference pattern in a given time slot specifies the interference allowed by each time slot to a given base station by any single mobile. A priority index may be determined for each time slot for each mobile associated with the particular base station. The priority index may be based, in part, on a determined correlation between the time-slot target interference patterns and a potential interference profile of a mobile to which a time slot is to be allocated. A mobile's throughput requirement, the throughput already received over a specified past duration, the system fairness requirement, as well as the amount of data available for transmission are also used for evaluating the priority index.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: April 3, 2012
    Assignee: Rockstar Bidco, LP
    Inventors: Nimal Senarath, Kelvin Kar-Kin Au, Shalini Periyalwar
  • Publication number: 20110244868
    Abstract: The present invention provides a method and system for facilitating efficient handoff and data throughput in mobile broadband communication systems. Methods implemented by a system constructed in accordance with the principles of the present invention include selectively enabled soft handoff, performing Layer 2 bearer functions at the base station and using the mobile device to coordinate soft handoff and interference avoidance without the need for a centralized coordination function.
    Type: Application
    Filed: June 10, 2011
    Publication date: October 6, 2011
    Applicant: NORTEL NETWORKS LIMITED
    Inventors: Nimal SENARATH, Bill GAGE, Shalini PERIYALWAR, Wen TONG