Patents by Inventor Parthasarathy Guturu

Parthasarathy Guturu 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: 7289484
    Abstract: This invention presents an efficient and efficacious method for an equitable distribution of wireless traffic across the 800 and 1900 MHz bands. Even though traffic distribution across bands is desirable, there is a risk of call failure because of location of the mobile in the vicinity of a BTS group with low capacity in the other band. The method proposed here tells how decisions to migrate calls across bands can be made robust against call failures without imposing unreasonable constraints that make such decisions sparing.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: October 30, 2007
    Assignee: Nortel Networks Limited
    Inventors: Parthasarathy Guturu, Abdennaceaur Lachtar
  • Publication number: 20040008643
    Abstract: This invention presents an efficient and efficacious method for an equitable distribution of wireless traffic across the 800 and 1900 MHz bands. Even though traffic distribution across bands is desirable, there is a risk of call failure because of location of the mobile in the vicinity of a BTS group with low capacity in the other band. The method proposed here tells how decisions to migrate calls across bands can be made robust against call failures without imposing unreasonable constraints that make such decisions sparing.
    Type: Application
    Filed: July 12, 2002
    Publication date: January 15, 2004
    Applicant: Nortel Networks Limited
    Inventors: Parthasarathy Guturu, Abdennaceaur Lachtar
  • Patent number: 6581075
    Abstract: A method of maintaining synchronization among multiple databases is provided. The method includes the steps of receiving a data update request for a data record at a database, and comparing a timestamp of the data record to a timestamp of the data update request. The data in the data record is updated with the data update request if the timestamp of the data update request is substantially greater than the timestamp of the data record. Otherwise, the data in the data record is updated with the data update request if the operational priority of the data update request is higher than the operational priority of the data record. Alternatively, the data in the data record is updated with the data update request if the node priority of the data update request is higher than the node priority of the data record.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: June 17, 2003
    Assignee: Nortel Networks Limited
    Inventors: Parthasarathy Guturu, Jatinder Pal, Thomas E. Heaven, Zhengya Zhu, William J. Jordan, Helmut Beffert, Ray McNamara