Patents by Inventor Alfred R. Schmidt

Alfred R. Schmidt 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: 20080225780
    Abstract: A method, apparatus and system for management of a wireless communication network in which the system has a plurality of access nodes. A distributed hash table (“DHT”) is created. The DHT contains mobility management data of mobile devices using the wireless communication network. The DHT is stored across at least a portion of the plurality of access nodes.
    Type: Application
    Filed: December 13, 2007
    Publication date: September 18, 2008
    Applicant: NORTEL NETWORKS LIMITED
    Inventors: William C. McCORMICK, Michael A. ROGER, Alfred R. SCHMIDT, James F. WIMBERLEY, Karl D. MANN
  • Patent number: 6760860
    Abstract: A base station, mobile station, and/or other terminal includes physical layer (layer 1) protocol and link layer (layer 2) protocol enhancements that interact with one another to cause the link layer protocol to inhibit is ARQ operations for data blocks having missing data packets that are still pending at the physical layer. A mobile station (or base station) receives a data packet from a base station across a wireless link. The physical layer then determines, a number, N, of data packets pending with its physical layer Automatic Retransmission reQuest (ARQ) operations. The physical layer then passes the data packet and the number, N, to a link layer operating on the mobile station. The link layer then modifies its ARQ operations based upon the number, N, of data packets pending with the physical layer ARQ operations. The link layer inhibits ARQ operations for data blocks missing data packets that are still pending with the physical layer.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: July 6, 2004
    Assignee: Nortel Networks Limited
    Inventors: Mo-Han Fong, Zhang Hang, Geng Wu, Derek K. Yu, Alfred R. Schmidt