Patents by Inventor Michael Petras
Michael Petras 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: 12245217Abstract: According to one or more embodiments, a first network node of a first radio access technology, RAT, configured to communicate with a second network node of a second RAT different from the first RAT is provided. The first network node includes processing circuitry configured to: schedule a physical resource block, PRB, in a predetermined frequency carrier range where the scheduling starts from a predefined frequency location in the predetermined frequency carrier range, receive an indication that the PRB has been scheduled by the second network node, and responsive to the received indication, discard the PRB scheduled by the first network node if the PRB is located outside of a first predetermined partition of radio resources allocated to the first network node.Type: GrantFiled: October 25, 2019Date of Patent: March 4, 2025Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Virgil Cimpu, Michael Petras, Tomas Norling, Franz Heiser, Tobias Lindquist
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Publication number: 20230145035Abstract: Methods and apparatuses are provided for centralized radio access network (CRAN) scalability. In one embodiment, a network node includes processing circuitry configured to cause the network node to schedule at least one wireless device according to a radio resource partition, the radio resource partition representing a division of radio resources between at least two schedulers of a same cell, and each radio resource partition of the cell being assigned to a corresponding scheduler of the at least two schedulers; and receive, from at least one scheduler of the at least two schedulers, an indication of an amount of the radio resources that are scheduled by the at least one scheduler. In one embodiment, a network node includes processing circuitry configured to cause the network node to send, to a master scheduler, an indication of an amount of the radio resources that are scheduled by the network node.Type: ApplicationFiled: April 2, 2020Publication date: May 11, 2023Inventors: Virgil CIMPU, Michael PETRAS, Tomas NORLING, Tobias LINDQUIST, Franz HEISER
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Publication number: 20220353876Abstract: According to one or more embodiments, a first network node of a first radio access technology, RAT, configured to communicate with a second network node of a second RAT different from the first RAT is provided. The first network node includes processing circuitry configured to: schedule a physical resource block, PRB, in a predetermined frequency carrier range where the scheduling starts from a predefined frequency location in the predetermined frequency carrier range, receive an indication that the PRB has been scheduled by the second network node, and responsive to the received indication, discard the PRB scheduled by the first network node if the PRB is located outside of a first predetermined partition of radio resources allocated to the first network node.Type: ApplicationFiled: October 25, 2019Publication date: November 3, 2022Inventors: Virgil CIMPU, Michael PETRAS, Tomas NORLING, Franz HEISER, Tobias LINDQUIST
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Publication number: 20220159787Abstract: It is provided a communication device comprising: a first wired connection interface for communicating backhaul signals with more central equipment over wired connection; a mobile termination device configured to transmit and receive the backhaul signals, wherein the backhaul signals conform to a cellular mobile communication standard; a radio base station, connected to the mobile termination device, wherein the radio base station is configured to transmit and receive access signals, conforming to a cellular mobile communication standard, to and from at least one local device, the access signals containing same payload data as corresponding backhaul signals; and at least one antenna port for communicating the access signals over the air.Type: ApplicationFiled: March 27, 2019Publication date: May 19, 2022Inventors: Miguel Berg, Elmar Trojer, Michael Petras, Roland Smith, Per-Erik Eriksson
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Publication number: 20200077316Abstract: A method of sending information to a radio access node (RAN) of a first radio access technology (RAT) regarding one or more coexisting RAN's of a second RAT is provided. In particular, the information comprises a number of parameters and operating modes used by the one or more coexisting radio access nodes.Type: ApplicationFiled: November 8, 2019Publication date: March 5, 2020Inventors: Christopher Richards, Michael Petras, Alfred Schmidt
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Patent number: 10506484Abstract: A method of sending information to a radio access node (RAN) of a first radio access technology (RAT) regarding one or more coexisting RAN's of a second RAT is provided. In particular, the information comprises a number of parameters and operating modes used by the one or more coexisting radio access nodes.Type: GrantFiled: March 18, 2016Date of Patent: December 10, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Christopher Richards, Michael Petras, Alfred Schmidt
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Patent number: 10306535Abstract: In some embodiments, a method comprises blocking mobile devices from establishing new connections to a cell, ending existent connections of mobile devices to the cell gradually based on a shutdown procedure, and locking the cell after the shutdown procedure. The shutdown procedure is configured according to pre-defined parameters that indicate to end the existent connections based on at least one of a priority level of existent connections or an activity level of existent connections.Type: GrantFiled: August 25, 2014Date of Patent: May 28, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Scholastica Lau, Michael Petras
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Patent number: 10299135Abstract: Systems and methods relating to coexistence of a cellular communications network technology (e.g., Long Term Evolution (LTE)) and another wireless technology (e.g., WiFi) in a shared unlicensed spectrum are disclosed. In particular, the present disclosure provides systems and methods that mitigate or avoid grabbing of an unlicensed, or shared, frequency band utilized by a wireless communications network node by a node of another wireless technology that operates according to a listen-before-talk scheme.Type: GrantFiled: February 10, 2015Date of Patent: May 21, 2019Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Christopher Richards, Michael Petras, Jung-Fu Cheng
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Publication number: 20170280369Abstract: In some embodiments, a method comprises blocking mobile devices from establishing new connections to a cell, ending existent connections of mobile devices to the cell gradually based on a shutdown procedure, and locking the cell after the shutdown procedure. The shutdown procedure is configured according to pre-defined parameters that indicate to end the existent connections based on at least one of a priority level of existent connections or an activity level of existent connections.Type: ApplicationFiled: August 25, 2014Publication date: September 28, 2017Inventors: Scholastica LAU, Michael PETRAS
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Patent number: 9723616Abstract: A method and apparatus assigning Physical Resource Blocks, PRBs, to a User Equipment, UE, in a wireless communication network having a plurality of cells, includes determining a Physical Cell Identifier, PCI, of a cell from the plurality of cells. Selecting a power level pattern of multiple PRBs for allocation, and assigning at least one of the multiple PRBs to the UE.Type: GrantFiled: July 10, 2013Date of Patent: August 1, 2017Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Virgil Cimpu, Michael Petras
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Publication number: 20170041844Abstract: A method of sending information to a radio access node (RAN) of a first radio access technology (RAT) regarding one or more coexisting RAN's of a second RAT is provided. In particular, the information comprises a number of parameters and operating modes used by the one or more coexisting radio access nodes.Type: ApplicationFiled: March 18, 2016Publication date: February 9, 2017Applicant: Telefonaktiebolaget LM Ericsson (PUBL)Inventors: Christopher Richards, Michael Petras, Alfred Schmidt
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Patent number: 9461849Abstract: A method and system for wireless communication in a wireless communication network. The wireless communication network has a first mobile terminal and a second mobile terminal arranged in virtual multiple input, multiple output (“V-MIMO”) communication with a base station. A first wireless communication uplink channel corresponding to the first mobile terminal is estimated. The estimate is based on a first reference symbol signal and the cancellation of interference from a second reference symbol signal received from the second mobile terminal. A second wireless communication uplink channel corresponding to the second mobile terminal is estimated. The estimate is based on the second reference symbol signal and the cancellation of interference from the first reference symbol signal received from the first mobile terminal.Type: GrantFiled: June 15, 2015Date of Patent: October 4, 2016Assignee: Apple Inc.Inventors: John P. Panicker, Gary D. Boudreau, Michael Petras, Ed Illidge
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Patent number: 9397213Abstract: A semiconductor device includes a substrate and a semiconductor layer having a first conductivity type. The semiconductor device further includes first and second trenches extending into the semiconductor layer from a surface of the semiconductor layer, each of the first and second trenches including a corresponding gate electrode. The semiconductor device further includes a body region having a second conductivity type different than the first conductivity type and a source contact region having the first conductivity type. The body region is disposed in the semiconductor layer below the surface of the semiconductor layer and between a sidewall of the first trench and an adjacent sidewall of a second trench. The source contact region is disposed in the semiconductor layer between the body region and the surface of the semiconductor layer and extending between the sidewall of the first trench and the corresponding sidewall of the second trench.Type: GrantFiled: August 29, 2014Date of Patent: July 19, 2016Assignee: Freescale Semiconductor, Inc.Inventors: Ganming Qin, Edouard de Frésart, Pon Sung Ku, Michael Petras, Moaniss Zitouni, Dragan Zupac
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Publication number: 20160183097Abstract: Systems and methods relating to coexistence of a cellular communications network technology (e.g., Long Term Evolution (LTE)) and another wireless technology (e.g., WiFi) in a shared unlicensed spectrum are disclosed. In particular, the present disclosure provides systems and methods that mitigate or avoid grabbing of an unlicensed, or shared, frequency band utilized by a wireless communications network node by a node of another wireless technology that operates according to a listen-before-talk scheme.Type: ApplicationFiled: February 10, 2015Publication date: June 23, 2016Inventors: Christopher Richards, Michael Petras, Jung-Fu Cheng
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Patent number: 9368620Abstract: A semiconductor device includes a substrate and a semiconductor layer having a first conductivity type. The semiconductor device further includes first and second trenches extending into the semiconductor layer from a surface of the semiconductor layer, each of the first and second trenches including a corresponding gate electrode. The semiconductor device further includes a body region having a second conductivity type different than the first conductivity type and a source contact region having the first conductivity type. The body region is disposed in the semiconductor layer below the surface of the semiconductor layer and between a sidewall of the first trench and an adjacent sidewall of a second trench. The source contact region is disposed in the semiconductor layer between the body region and the surface of the semiconductor layer and extending between the sidewall of the first trench and the corresponding sidewall of the second trench.Type: GrantFiled: August 29, 2014Date of Patent: June 14, 2016Assignee: Freescale Semiconductor, Inc.Inventors: Ganming Qin, Edouard de Frésart, Pon Sung Ku, Michael Petras, Moaniss Zitouni, Dragan Zupac
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Publication number: 20160064556Abstract: A semiconductor device includes a substrate and a semiconductor layer having a first conductivity type. The semiconductor device further includes first and second trenches extending into the semiconductor layer from a surface of the semiconductor layer, each of the first and second trenches including a corresponding gate electrode. The semiconductor device further includes a body region having a second conductivity type different than the first conductivity type and a source contact region having the first conductivity type. The body region is disposed in the semiconductor layer below the surface of the semiconductor layer and between a sidewall of the first trench and an adjacent sidewall of a second trench. The source contact region is disposed in the semiconductor layer between the body region and the surface of the semiconductor layer and extending between the sidewall of the first trench and the corresponding sidewall of the second trench.Type: ApplicationFiled: August 29, 2014Publication date: March 3, 2016Inventors: Ganming Qin, Edouard de Frésart, Pon Sung Ku, Michael Petras, Moaniss Zitouni, Dragan Zupac
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Publication number: 20150280941Abstract: A method and system for wireless communication in a wireless communication network. The wireless communication network has a first mobile terminal and a second mobile terminal arranged in virtual multiple input, multiple output (“V-MIMO”) communication with a base station. A first wireless communication uplink channel corresponding to the first mobile terminal is estimated. The estimate is based on a first reference symbol signal and the cancellation of interference from a second reference symbol signal received from the second mobile terminal. A second wireless communication uplink channel corresponding to the second mobile terminal is estimated. The estimate is based on the second reference symbol signal and the cancellation of interference from the first reference symbol signal received from the first mobile terminal.Type: ApplicationFiled: June 15, 2015Publication date: October 1, 2015Inventors: John P. Panicker, Gary D. Boudreau, Michael Petras, Ed Illidge
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Patent number: 9088443Abstract: A method and system for wireless communication in a wireless communication network. The wireless communication network has a first mobile terminal and a second mobile terminal arranged in virtual multiple input, multiple output (“V-MIMO”) communication with a base station. A first wireless communication uplink channel corresponding to the first mobile terminal is estimated. The estimate is based on a first reference symbol signal and the cancellation of interference from a second reference symbol signal received from the second mobile terminal. A second wireless communication uplink channel corresponding to the second mobile terminal is estimated. The estimate is based on the second reference symbol signal and the cancellation of interference from the first reference symbol signal received from the first mobile terminal.Type: GrantFiled: April 1, 2014Date of Patent: July 21, 2015Assignee: Apple Inc.Inventors: John P. Panicker, Gary D. Boudreau, Michael Petras, Ed Illidge
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Publication number: 20150016348Abstract: A method and apparatus assigning Physical Resource Blocks, PRBs, to a User Equipment, UE, in a wireless communication network having a plurality of cells, includes determining a Physical Cell Identifier, PCI, of a cell from the plurality of cells. Selecting a power level pattern of multiple PRBs for allocation, and assigning at least one of the multiple PRBs to the UE.Type: ApplicationFiled: July 10, 2013Publication date: January 15, 2015Inventors: Virgil CIMPU, Michael PETRAS
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Patent number: 8861569Abstract: The present invention proposes an LTE eNodeB receiver channel estimation technique that is referred to as reduced complexity minimum mean squared error (MMSE) technique for channel estimation. From the invention's assumptions, estimations and modified calculations, the present invention generates precise channel estimates of RS using the reduced complexity MMSE matrix and previously computed LS channel estimates HLS is as follows: (Formula I) which generates precise channel estimates of RS using the reduced complexity MMSE matrix and previously computed LS channel estimates. As a second aspect of the present invention, it is desired that the SNR be estimated within ?3 dB of the actual channel SNR. As a third aspect of the invention, an adaptive method of data channel interpolation from RS channel is being proposed in this invention.Type: GrantFiled: September 15, 2012Date of Patent: October 14, 2014Assignee: BlackBerry LimitedInventors: John P. Panicker, Gary Boudreau, Michael Petras, Ed Illidge