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).
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Patent number: 9107119Abstract: 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: GrantFiled: December 15, 2014Date of Patent: August 11, 2015Assignee: Broadcom CorporationInventor: Amir Appel
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Patent number: 9084194Abstract: 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: GrantFiled: October 26, 2012Date of Patent: July 14, 2015Assignee: BROADCOM SEMICONDUCTORS ISRAEL LTD.Inventors: Rafy Carmon, Yoav Volloch, Amir Appel, Sharon Levy
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Publication number: 20150105079Abstract: 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: ApplicationFiled: December 15, 2014Publication date: April 16, 2015Applicant: Broadcom CorporationInventor: Amir APPEL
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Patent number: 8958802Abstract: 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: GrantFiled: February 5, 2013Date of Patent: February 17, 2015Assignee: Broadcom CorporationInventor: Amir Appel
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Publication number: 20140269963Abstract: 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: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: Broadcom CorporationInventors: Rafael CARMON, Sharon Levy, Amir Appel
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Publication number: 20140220972Abstract: 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: ApplicationFiled: February 5, 2013Publication date: August 7, 2014Applicant: Broadcom CorporationInventor: Amir Appel
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Patent number: 8694056Abstract: 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: GrantFiled: November 2, 2008Date of Patent: April 8, 2014Assignee: Percello Ltd.Inventors: Rafy Carmon, Amir Appel
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Patent number: 8559345Abstract: 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: GrantFiled: July 23, 2009Date of Patent: October 15, 2013Assignees: Percello Ltd., Ubiquisys LimitedInventors: Rafy Carmon, Amir Appel, Stephen Whittaker, Alan Carter
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Patent number: 8306527Abstract: 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: GrantFiled: April 22, 2010Date of Patent: November 6, 2012Assignee: Percello Ltd.Inventors: Rafy Carmon, Yoav Volloch, Amir Appel, Sharon Levy
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Publication number: 20110194534Abstract: 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: ApplicationFiled: July 23, 2009Publication date: August 11, 2011Applicants: UBIQUISYS LIMITED, PERCELLO LTD.Inventors: Rafy Carmon, Amir Appel, Stephen Whittaker, Alan Carter
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Publication number: 20100273474Abstract: 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: ApplicationFiled: April 22, 2010Publication date: October 28, 2010Applicant: PERCELLO LTDInventors: Rafy CARMON, Yoav VOLLOCH, Amir APPEL, Sharon LEVY
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Publication number: 20100113095Abstract: 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: ApplicationFiled: November 2, 2008Publication date: May 6, 2010Inventors: Rafy Carmon, Amir Appel