Patents by Inventor Padmakumar B. Pillai

Padmakumar B. Pillai 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).

  • Dynamic power control for a TDMA based air interface
    Patent number: 7058029
    Abstract: The method provides power control in transmitting a downlink signal of frame data in a wireless network. Each frame is composed of timeslots, with each timeslot being further composed of quarter symbols. The method includes mapping each quarter symbol to an offset within a frame attenuation buffer, and computing a template for the frame, each step being performed only once. The template is used for filling the attenuation buffer with attenuation values to attenuate the transmit power for the downlink signal. Attenuation values are provided for each quarter symbol in a frame, although a computation is not required for each quarter symbol. The attenuation values are grouped in blocks that are recursively copied into the frame attenuation buffer based on the template. The contents of a filled attenuation buffer are output for use in attenuating the transmit power of the frame.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: June 6, 2006
    Assignee: Lucent Technologies Inc.
    Inventors: Mohammad Riaz Khawer, Padmakumar B. Pillai
  • Dynamic power control for a TDMA based air interface
    Publication number: 20030142637
    Abstract: The method provides power control in transmitting a downlink signal of frame data in a wireless network. Each frame is composed of timeslots, with each timeslot being further composed of quarter symbols. The method includes mapping each quarter symbol to an offset within a frame attenuation buffer, and computing a template for the frame, each step being performed only once. The template is used for filling the attenuation buffer with attenuation values to attenuate the transmit power for the downlink signal. Attenuation values are provided for each quarter symbol in a frame, although a computation is not required for each quarter symbol. The attenuation values are grouped in blocks that are recursively copied into the frame attenuation buffer based on the template. The contents of a filled attenuation buffer are output for use in attenuating the transmit power of the frame.
    Type: Application
    Filed: January 25, 2002
    Publication date: July 31, 2003
    Inventors: Mohammad Riaz Khawer, Padmakumar B. Pillai