Patents Assigned to Tektronix Texas, Inc.
  • Publication number: 20170279707
    Abstract: A fully-connected mesh network includes a plurality of switches. A first switch receives a packet traveling through the mesh network from an external source node to an external destination node specified by the packet. A plurality of links, which are all included in a mesh link aggregation group (LAG), couple each possible pair of the switches by a respective single link. Each of the respective links is included individually in an individual LAG. Each of the switches is configured to receive a packet from another switch of the plurality of switches via only the mesh LAG, and each switch that receives a packet via the mesh LAG is configured to transmit the packet to another switch of the plurality of switches via only one of the individual LAGs. The packet travels to the destination node at most two hops across the plurality of switches.
    Type: Application
    Filed: March 25, 2016
    Publication date: September 28, 2017
    Applicant: Tektronix Texas, Inc.
    Inventors: John P. Curtin, James Hall
  • Patent number: 9301213
    Abstract: Network monitoring devices and network monitoring techniques are disclosed and use inferential statistical approaches to determine one or more Key Performance Indicators, particularly for Circuit Switched FallBack (CSFB) scenarios. For example, the network monitoring node monitors a plurality of ciphered or clear text messages for a network interface in a communication network, determines a Mobile Terminating (MT) count for MT calls and a Mobile Originating (MO) count for User Equipment (UE) from at least one message of the plurality of messages and defines an inferred MT ratio based on the MT count and the MO count for a total number of messages. The network monitoring device further applies the inferred MT ratio to a CSFB idle mode count for UE and/or a CSFB active mode count for UE to yield an estimated total number of CSFB idle mode successes and an estimated total number of CSFB active mode successes, respectively.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: March 29, 2016
    Assignee: Tektronix Texas, Inc.
    Inventors: Antonio Bovo, Vignesh Janakiraman
  • Patent number: 9298560
    Abstract: A method for monitoring GPRS Tunneling Protocol (GTP) sessions in a mobile communication network having a monitoring module. The method includes the steps of monitoring, by the monitoring module, a plurality of subscriber GTP sessions, and storing recovery parameters related to the subscriber GTP sessions and subscribers associated therewith in records in a database in the monitoring module, wherein the recovery parameters are associated with initial session data for each subscriber GTP session. Upon an outage in monitoring, the method restarts the monitoring module to determine restart parameters associated with existing subscriber GTP sessions and subscribers associated therewith in the records in the database wherein the restart parameters are associated with subsequent session data for each subscriber GTP session.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: March 29, 2016
    Assignee: Tektronix Texas, Inc.
    Inventors: Vignesh Janakiraman, Aleksey G. Ivershen, John P. Curtin
  • Patent number: 9292037
    Abstract: The techniques for resolving asynchronous clock times include determining at least a high resolution time period and a low resolution time period for a clock of a first time domain, generating a plurality of sequenced transition signals for the high resolution time period where each sequenced transition signal corresponds to a respective bit transition period of the high resolution clock of the first time domain, encoding the plurality of sequenced transition signals for the high resolution time period into a high resolution vector, and encoding the low resolution time period into a low resolution vector.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: March 22, 2016
    Assignee: Tektronix Texas, Inc.
    Inventor: Asif Siddique