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).

  • Patent number: 11374662
    Abstract: 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: Grant
    Filed: April 27, 2016
    Date of Patent: June 28, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Mihai Parvan, Georgy Levin, Torbjörn Wigren
  • Publication number: 20190305860
    Abstract: 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: Application
    Filed: April 27, 2016
    Publication date: October 3, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mihai PARVAN, Georgy LEVIN, Torbjörn WIGREN
  • Patent number: 9794013
    Abstract: 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: Grant
    Filed: December 24, 2014
    Date of Patent: October 17, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Ping Liu, Edwin Iun, Mihai Parvan
  • Publication number: 20160191186
    Abstract: 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: Application
    Filed: December 24, 2014
    Publication date: June 30, 2016
    Inventors: Ping LIU, Edwin IUN, Mihai PARVAN
  • Publication number: 20130012149
    Abstract: 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: Application
    Filed: July 6, 2011
    Publication date: January 10, 2013
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Slim Ben Ghalba, Mihai Parvan, Peter Zahariev Rashev
  • Publication number: 20120289169
    Abstract: 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: Application
    Filed: May 30, 2012
    Publication date: November 15, 2012
    Applicant: ROCKSTAR BIDCO LP
    Inventors: Steve BEAUDIN, Feng GAO, David THOLL, Mihai PARVAN, J. Bradley DEFORGE
  • Patent number: 8204544
    Abstract: 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: Grant
    Filed: June 16, 2008
    Date of Patent: June 19, 2012
    Assignee: Rockstar Bidco, LP
    Inventors: Steve Beaudin, Feng Gao, David Tholl, Mihai Parvan, J. Bradley DeForge
  • Publication number: 20090247092
    Abstract: 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: Application
    Filed: June 16, 2008
    Publication date: October 1, 2009
    Applicant: Nortel Networks Limted
    Inventors: Steve Beaudin, Feng Gao, David Tholl, Mihai Parvan, J. Bradley DeForge
  • Patent number: 7508885
    Abstract: 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: Grant
    Filed: March 14, 2007
    Date of Patent: March 24, 2009
    Inventors: M. Neil McGowan, Marthinus W. Da Silveira, Mihai Parvan, Matthew Conrod
  • Publication number: 20070153936
    Abstract: 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: Application
    Filed: March 14, 2007
    Publication date: July 5, 2007
    Applicant: Nortel Networks Limited
    Inventors: Neil McGowan, Marthinus Da Silveira, Mihai Parvan, Matthew Conrod
  • Patent number: 7206355
    Abstract: 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: Grant
    Filed: December 2, 2002
    Date of Patent: April 17, 2007
    Assignee: Nortel Networks Limited
    Inventors: Neil N. McGowan, Marthinus W. Da Silveira, Mihai Parvan, Matthew Conrod
  • Publication number: 20040105509
    Abstract: 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: Application
    Filed: December 2, 2002
    Publication date: June 3, 2004
    Inventors: Neil N. McGowan, Marthinus W. Da Silveira, Mihai Parvan, Matthew Conrod