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).

  • Publication number: 20070019552
    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: Application
    Filed: May 12, 2006
    Publication date: January 25, 2007
    Inventors: Nimal Senarath, Paul Coverdale, Hongyi Li, Shalini Periyalwar, Koon Teo
  • Publication number: 20060073791
    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: Application
    Filed: December 16, 2004
    Publication date: April 6, 2006
    Inventors: Nimal Senarath, Kelvin Au, Shalini Peliyalwar
  • Publication number: 20050239451
    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: April 2, 2004
    Publication date: October 27, 2005
    Inventors: Shalini Periyalwar, Hang Zhang, Nimal Senarath, Derek Yu, Kelvin Au, Karl Mann
  • Publication number: 20050070266
    Abstract: A method and apparatus for reducing signal interference within a cellular radio system to increase both coverage and capacity. The method and apparatus include altering the direction of beams within cell sectors is among discrete angular positions according to a predetermined, cyclic pattern. The predetermined, cyclic pattern varies in a group of adjacent cell sectors such that inter-cell interference is significantly reduced or eliminated by rotating at a different cycle the beams in adjacent cells. This discrete, angular movement of beams provides for downlink transmissions to be timed in such a way (i.e., scheduled) such that transmission to a user will occur in accordance with the beam and time slot having the best carrier to interference (C/I) ratio for that user.
    Type: Application
    Filed: September 30, 2003
    Publication date: March 31, 2005
    Inventors: Nimal Senarath, Yoon Cheong, Shalini Periyalwar, Robert Matyas
  • Publication number: 20040192204
    Abstract: A multi-hop relaying method and apparatus used in a cellular network. The multi-hop transmission scheme utilizes intelligent relays within a conventional cellular system having at least one base station, one or more intelligent relays, and user equipment elements. The method includes selecting the strongest pilot signal from among the base stations and intelligent relays, reporting such to the base station, distributing an active user list to the relays along with scheduling and routing information via a relay control channel, and transmitting data according to a respective active user based upon the pilot signal strength to maximize coverage and capacity over the cellular system.
    Type: Application
    Filed: July 14, 2003
    Publication date: September 30, 2004
    Inventors: Shalini Periyalwar, Yoon Chae Cheong, Nimal Senarath