Patents by Inventor Mihai Parvan
Mihai Parvan 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: 11374662Abstract: In some embodiments, a method of operation of a node to monitor for faults in a receiver subsystem of a radio node comprises estimating a noise floor for each receiver chain of a plurality of receiver chains in the receiver subsystem of the radio node for each of one or more carriers to thereby provide a plurality of noise floor estimates. The method further comprises determining average received power for each receiver chain of the plurality of receiver chains in the receiver subsystem of the radio node for each of one or more carriers to thereby provide a plurality of average received power measurements. The method further comprises determining that there is a fault in the receiver subsystem of the radio node based on at least one of (a) a subset of the plurality of noise floor estimates and (b) a subset of the plurality of average received power measurements.Type: GrantFiled: April 27, 2016Date of Patent: June 28, 2022Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Mihai Parvan, Georgy Levin, Torbjörn Wigren
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Publication number: 20190305860Abstract: In some embodiments, a method of operation of a node to monitor for faults in a receiver subsystem of a radio node comprises estimating a noise floor for each receiver chain of a plurality of receiver chains in the receiver subsystem of the radio node for each of one or more carriers to thereby provide a plurality of noise floor estimates. The method further comprises determining average received power for each receiver chain of the plurality of receiver chains in the receiver subsystem of the radio node for each of one or more carriers to thereby provide a plurality of average received power measurements. The method further comprises determining that there is a fault in the receiver subsystem of the radio node based on at least one of (a) a subset of the plurality of noise floor estimates and (b) a subset of the plurality of average received power measurements.Type: ApplicationFiled: April 27, 2016Publication date: October 3, 2019Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Mihai PARVAN, Georgy LEVIN, Torbjörn WIGREN
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Patent number: 9794013Abstract: A system is provided. The system includes a plurality of network nodes for operating in a Time Division Duplex, TDD, network. The plurality of network nodes includes at least a network node and a first neighbor network node. The network node includes a node processor and node memory. The node memory contains instructions executable by the node processor. The first network node is configured to detect interference caused by the first neighbor network node in at least one uplink, UL, subframe, and determine a potential reason for the interference caused by the first neighbor network node.Type: GrantFiled: December 24, 2014Date of Patent: October 17, 2017Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Ping Liu, Edwin Iun, Mihai Parvan
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Publication number: 20160191186Abstract: A system is provided. The system includes a plurality of network nodes for operating in a Time Division Duplex, TDD, network. The plurality of network nodes includes at least a network node and a first neighbor network node. The network node includes a node processor and node memory. The node memory contains instructions executable by the node processor. The first network node is configured to detect interference caused by the first neighbor network node in at least one uplink, UL, subframe, and determine a potential reason for the interference caused by the first neighbor network node.Type: ApplicationFiled: December 24, 2014Publication date: June 30, 2016Inventors: Ping LIU, Edwin IUN, Mihai PARVAN
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Publication number: 20130012149Abstract: Adaptive gain regulation is performed by measuring one or more real-time closed-loop statistics for a signal output from a gain-controllable circuit and blindly adjusting the gain of the gain-controllable circuit based on the one or more real-time closed-loop statistics measured for the signal so that the signal output by the gain-controllable circuit satisfies a predetermined criteria without using a priori information about the signal.Type: ApplicationFiled: July 6, 2011Publication date: January 10, 2013Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Slim Ben Ghalba, Mihai Parvan, Peter Zahariev Rashev
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Publication number: 20120289169Abstract: A system for providing wireless communication is provided. The system comprises a radio transceiver comprising a plurality of configurable receivers and transmitters and a programmable processor, wherein the programmable processor is operable to configure at least some of the plurality of receivers and transmitters to operate using an operational mode associated with at least one of a designated coverage area and capacity.Type: ApplicationFiled: May 30, 2012Publication date: November 15, 2012Applicant: ROCKSTAR BIDCO LPInventors: Steve BEAUDIN, Feng GAO, David THOLL, Mihai PARVAN, J. Bradley DEFORGE
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Patent number: 8204544Abstract: A system for providing wireless communication is provided. The system comprises a radio transceiver comprising a plurality of configurable receivers and transmitters and a programmable processor, wherein the programmable processor is operable to configure at least some of the plurality of receivers and transmitters to operate using an operational mode associated with at least one of a designated coverage area and capacity.Type: GrantFiled: June 16, 2008Date of Patent: June 19, 2012Assignee: Rockstar Bidco, LPInventors: Steve Beaudin, Feng Gao, David Tholl, Mihai Parvan, J. Bradley DeForge
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Publication number: 20090247092Abstract: A system for providing wireless communication is provided. The system comprises a radio transceiver comprising a plurality of configurable receivers and transmitters and a programmable processor, wherein the programmable processor is operable to configure at least some of the plurality of receivers and transmitters to operate using an operational mode associated with at least one of a designated coverage area and capacity.Type: ApplicationFiled: June 16, 2008Publication date: October 1, 2009Applicant: Nortel Networks LimtedInventors: Steve Beaudin, Feng Gao, David Tholl, Mihai Parvan, J. Bradley DeForge
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Patent number: 7508885Abstract: A forward link transmitter in a sectored cell includes a baseband processor having traditional baseband signal digital processing circuitry in addition to including a digital hybrid matrix (vector and delay compensated transformation module) whose phase and amplitude (vector) and delay may be adjusted to compensate for downstream errors that are introduced and detected by a feedback circuit. Accordingly, the baseband processor, by monitoring an output of an analog hybrid matrix producing modulated and amplified radio frequency (RF) signals just prior to propagation from an antenna, can determine errors produced by the analog circuitry including the analog hybrid matrix and may compensate for the same by introducing an amplitude, phase and delay adjustment (in the digital domain) into output digital waveform signals to compensate for the error introduced downstream to the baseband processor.Type: GrantFiled: March 14, 2007Date of Patent: March 24, 2009Inventors: M. Neil McGowan, Marthinus W. Da Silveira, Mihai Parvan, Matthew Conrod
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Publication number: 20070153936Abstract: A forward link transmitter in a sectored cell includes a baseband processor having traditional baseband signal digital processing circuitry in addition to including a digital hybrid matrix (vector and delay compensated transformation module) whose phase and amplitude (vector) and delay may be adjusted to compensate for downstream errors that are introduced and detected by a feedback circuit. Accordingly, the baseband processor, by monitoring an output of an analog hybrid matrix producing modulated and amplified radio frequency (RF) signals just prior to propagation from an antenna, can determine errors produced by the analog circuitry including the analog hybrid matrix and may compensate for the same by introducing an amplitude, phase and delay adjustment (in the digital domain) into output digital waveform signals to compensate for the error introduced downstream to the baseband processor.Type: ApplicationFiled: March 14, 2007Publication date: July 5, 2007Applicant: Nortel Networks LimitedInventors: Neil McGowan, Marthinus Da Silveira, Mihai Parvan, Matthew Conrod
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Patent number: 7206355Abstract: A forward link transmitter in a sectored cell includes a baseband processor having traditional baseband signal digital processing circuitry in addition to including a digital hybrid matrix (vector and delay compensated transformation module) whose phase and amplitude (vector) and delay may be adjusted to compensate for downstream errors that are introduced and detected by a feedback circuit. Accordingly, the baseband processor, by monitoring an output of an analog hybrid matrix producing modulated and amplified radio frequency (RF) signals just prior to propagation from an antenna, can determine errors produced by the analog circuitry including the analog hybrid matrix and may compensate for the same by introducing an amplitude, phase and delay adjustment (in the digital domain) into output digital waveform signals to compensate for the error introduced downstream to the baseband processor.Type: GrantFiled: December 2, 2002Date of Patent: April 17, 2007Assignee: Nortel Networks LimitedInventors: Neil N. McGowan, Marthinus W. Da Silveira, Mihai Parvan, Matthew Conrod
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Publication number: 20040105509Abstract: A forward link transmitter in a sectored cell includes a baseband processor having traditional baseband signal digital processing circuitry in addition to including a digital hybrid matrix (vector and delay compensated transformation module) whose phase and amplitude (vector) and delay may be adjusted to compensate for downstream errors that are introduced and detected by a feedback circuit. Accordingly, the baseband processor, by monitoring an output of an analog hybrid matrix producing modulated and amplified radio frequency (RF) signals just prior to propagation from an antenna, can determine errors produced by the analog circuitry including the analog hybrid matrix and may compensate for the same by introducing an amplitude, phase and delay adjustment (in the digital domain) into output digital waveform signals to compensate for the error introduced downstream to the baseband processor.Type: ApplicationFiled: December 2, 2002Publication date: June 3, 2004Inventors: Neil N. McGowan, Marthinus W. Da Silveira, Mihai Parvan, Matthew Conrod