Patents by Inventor Kirupairaj Asirvatham

Kirupairaj Asirvatham 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: 20230239849
    Abstract: Methods and apparatus for communicating and utilizing persistent allocation of resources are described herein. A base station may allocate persistent resources to a client station, and may associate the client station or persistent resource allocation with a particular shared NACK channel. The base station may monitor the NACK channel for a NACK indicating a map error. The base station may monitor the resource allocation to implicitly determine a map error. The base station may resend one or more persistent resource allocation information elements in response to the NACK or implicit error determination. A client station having a persistent resource allocation may monitor persistent resource allocation information elements in map messages and/or may indicate failure to receive a persistent resource allocation information element in a NACK message on a shared NACK channel.
    Type: Application
    Filed: March 21, 2023
    Publication date: July 27, 2023
    Applicant: Wi-LAN Inc.
    Inventors: Yair Bourlas, Kirupairaj Asirvatham
  • Patent number: 11611964
    Abstract: Methods and apparatus for communicating and utilizing persistent allocation of resources are described herein. A base station may allocate persistent resources to a client station, and may associate the client station or persistent resource allocation with a particular shared NACK channel. The base station may monitor the NACK channel for a NACK indicating a map error. The base station may monitor the resource allocation to implicitly determine a map error. The base station may resend one or more persistent resource allocation information elements in response to the NACK or implicit error determination. A client station having a persistent resource allocation may monitor persistent resource allocation information elements in map messages and/or may indicate failure to receive a persistent resource allocation information element in a NACK message on a shared NACK channel.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: March 21, 2023
    Assignee: Wi-LAN Inc.
    Inventors: Yair Bourlas, Kirupairaj Asirvatham
  • Publication number: 20220124715
    Abstract: Methods and apparatus for communicating and utilizing persistent allocation of resources are described herein. A base station may allocate persistent resources to a client station, and may associate the client station or persistent resource allocation with a particular shared NACK channel. The base station may monitor the NACK channel for a NACK indicating a map error. The base station may monitor the resource allocation to implicitly determine a map error. The base station may resend one or more persistent resource allocation information elements in response to the NACK or implicit error determination. A client station having a persistent resource allocation may monitor persistent resource allocation information elements in map messages and/or may indicate failure to receive a persistent resource allocation information element in a NACK message on a shared NACK channel.
    Type: Application
    Filed: December 28, 2021
    Publication date: April 21, 2022
    Applicant: Wi-LAN Inc.
    Inventors: Yair Bourlas, Kirupairaj Asirvatham
  • Patent number: 11212804
    Abstract: Methods and apparatus for communicating and utilizing persistent allocation of resources are described herein. A base station may allocate persistent resources to a client station, and may associate the client station or persistent resource allocation with a particular shared NACK channel. The base station may monitor the NACK channel for a NACK indicating a map error. The base station may monitor the resource allocation to implicitly determine a map error. The base station may resend one or more persistent resource allocation information elements in response to the NACK or implicit error determination. A client station having a persistent resource allocation may monitor persistent resource allocation information elements in map messages and/or may indicate failure to receive a persistent resource allocation information element in a NACK message on a shared NACK channel.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: December 28, 2021
    Assignee: WI-LAN INC.
    Inventors: Yair Bourlas, Kirupairaj Asirvatham
  • Publication number: 20210153201
    Abstract: Methods and apparatus for communicating and utilizing persistent allocation of resources are described herein. A base station may allocate persistent resources to a client station, and may associate the client station or persistent resource allocation with a particular shared NACK channel. The base station may monitor the NACK channel for a NACK indicating a map error. The base station may monitor the resource allocation to implicitly determine a map error. The base station may resend one or more persistent resource allocation information elements in response to the NACK or implicit error determination. A client station having a persistent resource allocation may monitor persistent resource allocation information elements in map messages and/or may indicate failure to receive a persistent resource allocation information element in a NACK message on a shared NACK channel.
    Type: Application
    Filed: January 27, 2021
    Publication date: May 20, 2021
    Applicant: Wi-LAN Inc.
    Inventors: Yair Bourlas, Kirupairaj Asirvatham
  • Patent number: 10932265
    Abstract: Methods and apparatus for communicating and utilizing persistent allocation of resources are described herein. A base station may allocate persistent resources to a client station, and may associate the client station or persistent resource allocation with a particular shared NACK channel. The base station may monitor the NACK channel for a NACK indicating a map error. The base station may monitor the resource allocation to implicitly determine a map error. The base station may resend one or more persistent resource allocation information elements in response to the NACK or implicit error determination. A client station having a persistent resource allocation may monitor persistent resource allocation information elements in map messages and/or may indicate failure to receive a persistent resource allocation information element in a NACK message on a shared NACK channel.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: February 23, 2021
    Assignee: Wi-LAN Inc.
    Inventors: Yair Bourlas, Kirupairaj Asirvatham
  • Publication number: 20190098630
    Abstract: Methods and apparatus for communicating and utilizing persistent allocation of resources are described herein. A base station may allocate persistent resources to a client station, and may associate the client station or persistent resource allocation with a particular shared NACK channel. The base station may monitor the NACK channel for a NACK indicating a map error. The base station may monitor the resource allocation to implicitly determine a map error. The base station may resend one or more persistent resource allocation information elements in response to the NACK or implicit error determination. A client station having a persistent resource allocation may monitor persistent resource allocation information elements in map messages and/or may indicate failure to receive a persistent resource allocation information element in a NACK message on a shared NACK channel.
    Type: Application
    Filed: November 26, 2018
    Publication date: March 28, 2019
    Applicant: Wi-LAN Inc.
    Inventors: Yair Bourlas, Kirupairaj Asirvatham
  • Patent number: 10142988
    Abstract: Methods and apparatus for communicating and utilizing persistent allocation of resources are described herein. A base station may allocate persistent resources to a client station, and may associate the client station or persistent resource allocation with a particular shared NACK channel. The base station may monitor the NACK channel for a NACK indicating a map error. The base station may monitor the resource allocation to implicitly determine a map error. The base station may resend one or more persistent resource allocation information elements in response to the NACK or implicit error determination. A client station having a persistent resource allocation may monitor persistent resource allocation information elements in map messages and/or may indicate failure to receive a persistent resource allocation information element in a NACK message on a shared NACK channel.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: November 27, 2018
    Assignee: WI-LAN INC.
    Inventors: Yair Bourlas, Kirupairaj Asirvatham
  • Publication number: 20160037529
    Abstract: Methods and apparatus for communicating and utilizing persistent allocation of resources are described herein. A base station may allocate persistent resources to a client station, and may associate the client station or persistent resource allocation with a particular shared NACK channel. The base station may monitor the NACK channel for a NACK indicating a map error. The base station may monitor the resource allocation to implicitly determine a map error. The base station may resend one or more persistent resource allocation information elements in response to the NACK or implicit error determination. A client station having a persistent resource allocation may monitor persistent resource allocation information elements in map messages and/or may indicate failure to receive a persistent resource allocation information element in a NACK message on a shared NACK channel.
    Type: Application
    Filed: October 9, 2015
    Publication date: February 4, 2016
    Applicant: WI-LAN, INC.
    Inventors: Yair Bourlas, Kirupairaj Asirvatham
  • Patent number: 9161341
    Abstract: Methods and apparatus for communicating and utilizing persistent allocation of resources are described herein. A base station may allocate persistent resources to a client station, and may associate the client station or persistent resource allocation with a particular shared NACK channel. The base station may monitor the NACK channel for a NACK indicating a map error. The base station may monitor the resource allocation to implicitly determine a map error. The base station may resend one or more persistent resource allocation information elements in response to the NACK or implicit error determination. A client station having a persistent resource allocation may monitor persistent resource allocation information elements in map messages and/or may indicate failure to receive a persistent resource allocation information element in a NACK message on a shared NACK channel.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: October 13, 2015
    Assignee: Wi-LAN Inc.
    Inventors: Yair Bourlas, Kirupairaj Asirvatham
  • Publication number: 20140241292
    Abstract: Methods and apparatus for communicating and utilizing persistent allocation of resources are described herein. A base station may allocate persistent resources to a client station, and may associate the client station or persistent resource allocation with a particular shared NACK channel. The base station may monitor the NACK channel for a NACK indicating a map error. The base station may monitor the resource allocation to implicitly determine a map error. The base station may resend one or more persistent resource allocation information elements in response to the NACK or implicit error determination. A client station having a persistent resource allocation may monitor persistent resource allocation information elements in map messages and/or may indicate failure to receive a persistent resource allocation information element in a NACK message on a shared NACK channel.
    Type: Application
    Filed: May 7, 2014
    Publication date: August 28, 2014
    Applicant: WI-LAN, INC.
    Inventors: Yair Bourlas, Kirupairaj Asirvatham
  • Patent number: 8732541
    Abstract: Methods and apparatus for communicating and utilizing persistent allocation of resources are described herein. A base station may allocate persistent resources to a client station, and may associate the client station or persistent resource allocation with a particular shared NACK channel. The base station may monitor the NACK channel for a NACK indicating a map error. The base station may monitor the resource allocation to implicitly determine a map error. The base station may resend one or more persistent resource allocation information elements in response to the NACK or implicit error determination. A client station having a persistent resource allocation may monitor persistent resource allocation information elements in map messages and/or may indicate failure to receive a persistent resource allocation information element in a NACK message on a shared NACK channel.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: May 20, 2014
    Assignee: Wi-LAN, Inc.
    Inventors: Yair Bourlas, Kirupairaj Asirvatham
  • Patent number: 8423853
    Abstract: Methods and apparatus for communicating and utilizing persistent allocation of resources are described herein. A base station can allocate persistent resources to a client station, and can associate the client station or persistent resource allocation with a particular shared NACK channel. The base station can monitor the NACK channel for a NACK indicating a map error. The base station can also monitor the resource allocation to implicitly determine a map error. The base station can resend one or more persistent resource allocation information elements in response to the NACK or implicit error determination. A client station having a persistent resource allocation can monitor persistent resource allocation information elements in map messages and can indicate failure to receive a persistent resource allocation information element in a NACK message on a preassigned share NACK channel.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: April 16, 2013
    Assignee: Wi-LAN, Inc.
    Inventors: Yair Bourlas, Kirupairaj Asirvatham
  • Patent number: 8196024
    Abstract: The subject matter disclosed herein provides methods and systems for converting fixed-point soft bit values, provided by a demapper, into floating-point soft bits values. In one aspect, there is provided a method. The method may include receiving, from a demapper, soft bits formatted as a fixed-point value. Moreover, the soft bits may be converted from the fixed-point value to a floating-point value. The floating-point value is punctured to remove a bit. The converted soft bits are provided to a buffer to enable decoding of the buffered soft bits. Related systems, apparatus, methods, and/or articles are also described.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: June 5, 2012
    Assignee: Wi-LAN Inc.
    Inventors: Kirupairaj Asirvatham, Peifang Zhang, Siavash Sheikh Zeinoddin, Peter J. Graumann
  • Patent number: 8190958
    Abstract: Methods and apparatus for communicating and utilizing persistent allocation of resources are described herein. A base station can allocate persistent resources to a client station, and can associate the client station or persistent resource allocation with a particular shared NACK channel. The base station can monitor the NACK channel for a NACK indicating a map error. The base station can also monitor the resource allocation to implicitly determine a map error. The base station can resend one or more persistent resource allocation information elements in response to the NACK or implicit error determination. A client station having a persistent resource allocation can monitor persistent resource allocation information elements in map messages and can indicate failure to receive a persistent resource allocation information element in a NACK message on a preassigned share NACK channel.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: May 29, 2012
    Assignee: Wi-LAN, Inc.
    Inventors: Yair Bourlas, Kirupairaj Asirvatham
  • Publication number: 20090327820
    Abstract: The subject matter disclosed herein provides methods and systems for converting fixed-point soft bit values, provided by a demapper, into floating-point soft bits values. In one aspect, there is provided a method. The method may include receiving, from a demapper, soft bits formatted as a fixed-point value. Moreover, the soft bits may be converted from the fixed-point value to a floating-point value. The floating-point value is punctured to remove a bit. The converted soft bits are provided to a buffer to enable decoding of the buffered soft bits. Related systems, apparatus, methods, and/or articles are also described.
    Type: Application
    Filed: June 27, 2008
    Publication date: December 31, 2009
    Inventors: Kirupairaj Asirvatham, Peifang Zhang, Siavash Sheikh Zeinoddin, Peter J. Graumann
  • Publication number: 20090070650
    Abstract: Methods and apparatus for communicating and utilizing persistent allocation of resources are described herein. A base station can allocate persistent resources to a client station, and can associate the client station or persistent resource allocation with a particular shared NACK channel. The base station can monitor the NACK channel for a NACK indicating a map error. The base station can also monitor the resource allocation to implicitly determine a map error. The base station can resend one or more persistent resource allocation information elements in response to the NACK or implicit error determination. A client station having a persistent resource allocation can monitor persistent resource allocation information elements in map messages and can indicate failure to receive a persistent resource allocation information element in a NACK message on a preassigned share NACK channel.
    Type: Application
    Filed: September 4, 2008
    Publication date: March 12, 2009
    Applicant: NextWave Broadband Inc.
    Inventors: Yair Bourlas, Kirupairaj Asirvatham
  • Patent number: 7379514
    Abstract: A communications receiver is provided that includes a first and second compensators a pilot tracker and a demodulator. The first compensator is operable to adjust an input signal based on both a coarse frequency offset and a fine frequency offset to produce an adjusted input signal. The pilot tracker determines an estimated residual frequency offset based on at least a portion of the adjusted input signal. The demodulator determines at least a first symbol sequence and a second symbol sequence based on the adjusted input signal. The second compensator is operable to adjust the first symbol sequence and the second symbol sequence based on the estimate residual frequency offset.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: May 27, 2008
    Assignee: Texas Instruments Incorporated
    Inventors: John R. Rosenlof, Kirupairaj Asirvatham, Srikanth Gummadi
  • Patent number: 7184721
    Abstract: A method and apparatus permit a wireless communication device to be calibrated during manufacturing and subsequently re-calibrated while in use to correct for the effects of temperature changes on transmit power.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: February 27, 2007
    Assignee: Texas Instruments Incorporated
    Inventors: Kirupairaj Asirvatham, John R. Rosenlof
  • Publication number: 20060171488
    Abstract: A communications receiver is provided that includes a first and second compensators 64 and 68, a pilot tracker 60, and a demodulator 66. The first compensator 64 is operable to adjust an input signal based on both a coarse frequency offset and a fine frequency offset to produce an adjusted input signal. The pilot tracker 60 determines an estimated residual frequency offset based on at least a portion of the adjusted input signal. The demodulator 66 determines at least a first symbol sequence and a second symbol sequence based on the adjusted input signal. The second compensator 68 is operable to adjust the first symbol sequence and the second symbol sequence based on the estimate residual frequency offset.
    Type: Application
    Filed: January 28, 2005
    Publication date: August 3, 2006
    Applicant: Texas Instruments Incorporated
    Inventors: John Rosenlof, Kirupairaj Asirvatham, Srikanth Gummadi