Patents Represented by Attorney Francois Pelaez
  • Patent number: 8340626
    Abstract: A system and method are disclosed to support Voice Call Continuity (VCC) for emergency calls. The system includes a VCC Application in a visited internet-protocol multimedia subsystem (IMS) to facilitate domain transfers between the IMS subsystem and a circuit-switched (CS) subsystem. The system further includes an emergency call session control function (E-CSCF) subsystem in the visited IMS subsystem that is operatively coupled to the VCC Application to facilitate domain transfers between the IMS subsystem and the CS subsystem.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: December 25, 2012
    Assignee: QUALCOMM Incorporated
    Inventor: Stephen W. Edge
  • Patent number: 8326294
    Abstract: Disclosed are devices, methods and computer program products for radio access network (RAN) signal acquisition. In one aspect, a mobile device scans a radio frequency spectrum for RAN signals and detects signals corresponding to a plurality of channels of a first network type having a first channel bandwidth. The mobile device then determines a power level of the detected signal on each of the plurality of channels and discards signals having substantially equal power within a first frequency range to define a remaining set of signals. The first frequency range corresponds to a second channel bandwidth of a second network type and the second channel bandwidth is greater than the first channel bandwidth. The mobile device then ranks the remaining signals based on the determined power level and selects one of the remaining signals for acquisition based on the ranking.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: December 4, 2012
    Assignee: Qualcomm Incorporated
    Inventors: Mohit Narang, Jonathan R. Cook
  • Patent number: 8179811
    Abstract: An algorithm for improving efficiency of data attachment points (DAPs) in a wireless access network (AN) is provided herein. By way of example, the algorithm can identify a serving access point (APs) coupling an access terminal (AT) to the wireless AN. A cost metric for the serving AP can be determined with respect to at least one data network access gateway (AGW) of the wireless AN. The cost metric can be compared with a similar cost metric of a current or default DAP assigned to the AT. If the cost metric of the serving AP is lower than the cost metric of the current/default DAP, the DAP can be re-assigned to the serving AP, minimizing wireless AN resource costs associated with the DAP.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: May 15, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Peerapol Tinnakornsrisuphap, Fatih Ulupinar, Parag Arun Agashe
  • Patent number: 8072922
    Abstract: A method and apparatus are disclosed for negotiating and managing one or more personalities in a wireless communications system. The method comprises advertising one or more supported initial protocol set identifiers. Furthermore, the method comprises selecting a starting initial protocol set identifier from the advertised initial protocol set identifiers. In addition, the method comprises establishing a session based on the selected starting initial protocol set identifier. The method also comprises establishing a connection between an access terminal and an access network based on the selected initial protocol set identifier.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: December 6, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Ragulan Sinnarajah, Fatih Ulupinar, Gavin Bernard Horn, Parag Arun Agashe, Paul E. Bender, Ravindra Patwardhan, Rajat Prakash
  • Patent number: 8040850
    Abstract: In various embodiments, communication apparatuses and methods for providing robust communications are disclosed. For example, an apparatus may establish an air interface in accordance with an orthogonal frequency division multiplex (OFDM) protocol. According to another particular aspect, the apparatus establishes an air interface in accordance with a Fast Low-Latency Access with Seamless Handoff Orthogonal Frequency Division Multiplex (FLASH-OFDM) protocol.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: October 18, 2011
    Assignee: QUALCOMM Incorporated
    Inventor: Hesham Soliman
  • Patent number: 7986709
    Abstract: In accordance with a method for increasing the capacity of a channel in a communications system, characteristics of a channel may be evaluated. The channel may include a plurality of slots, and the slots may have a slot format among a set of slot formats. A slot format among the set of slot formats may be selected. The selection may be based on the evaluated characteristics of the channel. Selecting the slot format may include selecting the position of a signal within each of the plurality of slots. The position of the signal may be different for each of the slot formats. The signal may be transmitted in each of the plurality of slots over the channel.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: July 26, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Stein Arne Lundby, Serge D. Willenegger
  • Patent number: 7792075
    Abstract: A method and apparatus to perform persistence tests for a mobile station in a network are described. The apparatus includes a random number generator, a timer module, and a processor coupled to the random number generator and the timer module. A counter for the random number generator configured to count access slots is initialized. One or more random numbers are successively generated, until a value of a generated random number is lower than a first predetermined value. At the same time, the counter is successively incremented based on the number of generated random numbers. When the counter value is higher than or equal to a second predetermined value of successive iterations, or, in the alternative, when the value of the generated random number is lower than the first predetermined value, the mobile station is deactivated for a predetermined number of access slots equal to the counter value. A timer interrupt further runs subsequent to the expiration of the predetermined number of access slots.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: September 7, 2010
    Assignee: QUALCOMM Incorporated
    Inventors: Tom Chin, Bao Nguyen