Patents by Inventor Yoav Volloch

Yoav Volloch 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: 9084194
    Abstract: A method of improving frequency accuracy of a clock unit adapted to clock a femtocell local cellular communication home base station is provided. The method comprising: providing a local cellular communication home base station having an oscillator adapted to operate as a clock therein, wherein at least one cellular communication device is camped thereto, and wherein the at least one camped cellular communication device is further in communication with at least one neighboring cellular communication base station which is associated with an oscillator adapted to operate as a clock therein; periodically applying a derivative operator over periodically obtained local communication parameters and periodically obtained neighboring communication parameters thereby generating derivative communication parameters over time; and correcting the accuracy of the frequency of the clock in the femtocell local cellular communication home base station using the derivative communication parameters over time.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: July 14, 2015
    Assignee: BROADCOM SEMICONDUCTORS ISRAEL LTD.
    Inventors: Rafy Carmon, Yoav Volloch, Amir Appel, Sharon Levy
  • Patent number: 8849336
    Abstract: A femtocell power control module is operative to: obtain at least one uplink communication characteristic associated with the uplink signals transmitted by the at least one cellular communication device and received by the femtocell base station; estimate, from the obtained uplink communication characteristic, the power level of the downlink signals transmitted by the femtocell base station, as received by the at least one cellular communication device; if the estimated power level of the downlink signals transmitted by the femtocell base station as received by the at least one cellular communication device exceeds a predefined threshold power level, reduce the power level of the downlink signals transmitted by the femtocell base station to a reduced power level.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: September 30, 2014
    Assignee: Percello Ltd.
    Inventors: Rafy Carmon, Yoav Volloch, Sharon Levy, Alon Shechter
  • Publication number: 20130244654
    Abstract: Provided is coordinating user equipment handover in a heterogeneous network cell that includes a plurality of overlaying cell layers. An access controller of a network core receives a first parameter relating to signal quality for the user equipment with a serving cell of a cell layer of the plurality of overlaying cell layers, and receives a second parameter based upon a velocity estimation of user equipment within the heterogeneous network cell. When the first parameter indicates a cell boundary, the access controller forms a handoff decision to a cell base station of a cell layer of the plurality of overlaying cell layers based upon the second parameter, and initiates a handoff to the cell base station based upon the handoff decision.
    Type: Application
    Filed: March 19, 2012
    Publication date: September 19, 2013
    Applicant: BROADCOM CORPORATION
    Inventors: Rafael Carmon, Yoav Volloch
  • Patent number: 8306527
    Abstract: A method of improving frequency accuracy of a clock unit adapted to clock a femtocell local cellular communication home base station is provided. The method comprising: providing a local cellular communication home base station having an oscillator adapted to operate as a clock therein, wherein at least one cellular communication device is camped thereto, and wherein the at least one camped cellular communication device is further in communication with at least one neighboring cellular communication base station which is associated with an oscillator adapted to operate as a clock therein; periodically applying a derivative operator over periodically obtained local communication parameters and periodically obtained neighboring communication parameters thereby generating derivative communication parameters over time; and correcting the accuracy of the frequency of the clock in the femtocell local cellular communication home base station using the derivative communication parameters over time.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: November 6, 2012
    Assignee: Percello Ltd.
    Inventors: Rafy Carmon, Yoav Volloch, Amir Appel, Sharon Levy
  • Publication number: 20110105110
    Abstract: A femtocell power control module is operative to: obtain at least one uplink communication characteristic associated with the uplink signal transmitted by the at least one cellular communication device and received by the femtocell base station; estimate, from the obtained uplink communication characteristic, the power level of the downlink signals transmitted by the femtocell base station, as received by the at least one cellular communication device; if the estimated power level of the downlink signals transmitted by the femtocell base station as received by the at least one cellular communication device exceeds a predefined threshold power level, reduce the power level of the downlink signals transmitted by the femtocell base station to a reduced power level.
    Type: Application
    Filed: April 22, 2010
    Publication date: May 5, 2011
    Applicant: Percello Ltd.
    Inventors: Rafy Carmon, Yoav Volloch, Sharon Levy, Alon Shechter
  • Publication number: 20100273474
    Abstract: A method of improving frequency accuracy of a clock unit adapted to clock a femtocell local cellular communication home base station is provided. The method comprising: providing a local cellular communication home base station having an oscillator adapted to operate as a clock therein, wherein at least one cellular communication device is camped thereto, and wherein the at least one camped cellular communication device is further in communication with at least one neighboring cellular communication base station which is associated with an oscillator adapted to operate as a clock therein; periodically applying a derivative operator over periodically obtained local communication parameters and periodically obtained neighboring communication parameters thereby generating derivative communication parameters over time; and correcting the accuracy of the frequency of the clock in the femtocell local cellular communication home base station using the derivative communication parameters over time.
    Type: Application
    Filed: April 22, 2010
    Publication date: October 28, 2010
    Applicant: PERCELLO LTD
    Inventors: Rafy CARMON, Yoav VOLLOCH, Amir APPEL, Sharon LEVY
  • Publication number: 20050143143
    Abstract: Devices, systems, and methods are provided to enable power saving when operating a communication device in an idle state in a Universal Mobile Telecommunications System. In some embodiments a method is provided to enable universal mode communication devices operating in a Universal Mobile Telecommunications System to determine whether a serving base station transmits signals using a selected Radio Access Technology (RAT) during an idle state of operation. In the case where the serving base station transmits signals using a non-selected RAT, the communication device may select a neighboring base station where an adequate signal is provided using the selected RAT, irrespective of the signal strength in the cell being served.
    Type: Application
    Filed: December 30, 2003
    Publication date: June 30, 2005
    Inventors: Erez Schwartz, Yoav Volloch
  • Publication number: 20050143068
    Abstract: In a wireless communications system, during a base station or cell monitoring procedure, a device, system, and method may enable a communication device to determine if a serving base station is transmitting an adequate signal, and, if the base station is not transmitting an adequate signal, identifying another base station that may provide adequate service. For example, it may be determined if at least one other base station in a list of previously identified base stations transmits adequate signals. If this is not the case, a scan may be performed of a set of channels to identify further base stations or cells.
    Type: Application
    Filed: December 31, 2003
    Publication date: June 30, 2005
    Inventors: Guy Ben-Yehuda, Yoav Volloch, David Ben-Eli