Patents by Inventor Amir Appel

Amir Appel 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: 9107119
    Abstract: A base station can observe downlink communications of neighboring base stations of neighboring cells to determine operational parameters of these neighboring base stations in a process called sniffing. The base station ceases downlink transmission and/or uplink reception and initiates downlink reception for a duration in time and/or over frequency to form a sniffing window to observe the downlink communications of the one or more neighboring base stations. The sniffing window represents an area in time and/or frequency where downlink communications are not transmitted. The base station determines operational parameters based upon the downlink communications of the one or more neighboring base stations that are observed during the sniffing window.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: August 11, 2015
    Assignee: Broadcom Corporation
    Inventor: Amir Appel
  • 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
  • Publication number: 20150105079
    Abstract: A base station can observe downlink communications of neighboring base stations of neighboring cells to determine operational parameters of these neighboring base stations in a process called sniffing. The base station ceases downlink transmission and/or uplink reception and initiates downlink reception for a duration in time and/or over frequency to form a sniffing window to observe the downlink communications of the one or more neighboring base stations. The sniffing window represents an area in time and/or frequency where downlink communications are not transmitted. The base station determines operational parameters based upon the downlink communications of the one or more neighboring base stations that are observed during the sniffing window.
    Type: Application
    Filed: December 15, 2014
    Publication date: April 16, 2015
    Applicant: Broadcom Corporation
    Inventor: Amir APPEL
  • Patent number: 8958802
    Abstract: A base station can observe downlink communications of neighboring base stations of neighboring cells to determine operational parameters of these neighboring base stations in a process called sniffing. The base station ceases downlink transmission and/or uplink reception and initiates downlink reception for a duration in time and/or over frequency to form a sniffing window to observe the downlink communications of the one or more neighboring base stations. The sniffing window represents an area in time and/or frequency where downlink communications are not transmitted. The base station determines operational parameters based upon the downlink communications of the one or more neighboring base stations that are observed during the sniffing window.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: February 17, 2015
    Assignee: Broadcom Corporation
    Inventor: Amir Appel
  • Publication number: 20140269963
    Abstract: A communication system is disclosed that includes a communication transmitter that converts various information signals that collectively occupy a large signal bandwidth into various signals that individually occupy small signal bandwidths for transmission to a communication receiver. The communication receiver converts these various signals that individually occupy the small signal bandwidth to recovered information signals that collectively occupy the large signal bandwidth for processing.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Broadcom Corporation
    Inventors: Rafael CARMON, Sharon Levy, Amir Appel
  • Publication number: 20140220972
    Abstract: A base station can observe downlink communications of neighboring base stations of neighboring cells to determine operational parameters of these neighboring base stations in a process called sniffing. The base station ceases downlink transmission and/or uplink reception and initiates downlink reception for a duration in time and/or over frequency to form a sniffing window to observe the downlink communications of the one or more neighboring base stations. The sniffing window represents an area in time and/or frequency where downlink communications are not transmitted. The base station determines operational parameters based upon the downlink communications of the one or more neighboring base stations that are observed during the sniffing window.
    Type: Application
    Filed: February 5, 2013
    Publication date: August 7, 2014
    Applicant: Broadcom Corporation
    Inventor: Amir Appel
  • Patent number: 8694056
    Abstract: An array of base band processors cooperating for sharing processing power in managing and controlling user equipment traffic in a small cellular communication base station (Femtocell). The base band processors array comprises: a master base band processor; and a plurality of slave base band processors, wherein each base band processor comprise a processing unit, a first layer engine, and communication, control and interface modules providing scalability support functionality, and wherein the processing unit and the first layer engine are arranged in cooperation to manage and control user equipment traffic in the cellular communication base station, and wherein the scalability support functionality is arranged to enable coherent and aligned cooperation between the master base band processor and the plurality of slave base band processors connected thereto.
    Type: Grant
    Filed: November 2, 2008
    Date of Patent: April 8, 2014
    Assignee: Percello Ltd.
    Inventors: Rafy Carmon, Amir Appel
  • Patent number: 8559345
    Abstract: In a cellular communications network, it may be desirable for a large number of basestations to share one or a small number of scrambling codes. When a basestation identifies a desired scrambling code, which is also being used by another nearby basestation, steps are taken such that a location area update is triggered whenever a mobile communications device moves from a coverage area of the nearby basestation into a coverage area of said basestation. Further, the basestation establishes a first cell, using the desired scrambling code, and also establishes a second cell also served by the basestation, using a second scrambling code. By ensuring that mobile devices are preferentially served by the second cell, the possibility of interference with the nearby basestation is reduced.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: October 15, 2013
    Assignees: Percello Ltd., Ubiquisys Limited
    Inventors: Rafy Carmon, Amir Appel, Stephen Whittaker, Alan Carter
  • 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: 20110194534
    Abstract: In a cellular communications network, it may be desirable for a large number of basestations to share one or a small number of scrambling codes. When a basestation identifies a desired scrambling code, which is also being used by another nearby basestation, steps are taken such that a location area update is triggered whenever a mobile communications device moves from a coverage area of the nearby basestation into a coverage area of said basestation. Further, the basestation establishes a first cell, using the desired scrambling code, and also establishes a second cell also served by the basestation, using a second scrambling code. By ensuring that mobile devices are preferentially served by the second cell, the possibility of interference with the nearby basestation is reduced.
    Type: Application
    Filed: July 23, 2009
    Publication date: August 11, 2011
    Applicants: UBIQUISYS LIMITED, PERCELLO LTD.
    Inventors: Rafy Carmon, Amir Appel, Stephen Whittaker, Alan Carter
  • 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: 20100113095
    Abstract: An array of base band processors cooperating for sharing processing power in managing and controlling user equipment traffic in a small cellular communication base station (Femtocell). The base band processors array comprises: a master base band processor; and a plurality of slave base band processors, wherein each base band processor comprise a processing unit, a first layer engine, and communication, control and interface modules providing scalability support functionality, and wherein the processing unit and the first layer engine are arranged in cooperation to manage and control user equipment traffic in the cellular communication base station, and wherein the scalability support functionality is arranged to enable coherent and aligned cooperation between the master base band processor and the plurality of slave base band processors connected thereto.
    Type: Application
    Filed: November 2, 2008
    Publication date: May 6, 2010
    Inventors: Rafy Carmon, Amir Appel