Patents by Inventor Oana-Elena BARBU

Oana-Elena BARBU 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).

  • Publication number: 20240129018
    Abstract: There is provided an apparatus including receiving, at a second node, a signal including contributions of at least one backscatter signal and at least one further signal, the at least one backscatter signal being transmitted by a respective at least one passive device in response to a first node transmitting a first signal to the at least one passive device; isolating the contribution of the at least one backscatter signal from the at least one further signal; and based on the contribution of the at least one backscatter signal, determining, by the second node, one or more parameters associated with the respective at least one passive device.
    Type: Application
    Filed: October 11, 2023
    Publication date: April 18, 2024
    Inventors: Oana-Elena BARBU, Benny VEJLGAARD, Johannes HARREBEK
  • Patent number: 11960017
    Abstract: An apparatus, method and computer program is described comprising: receiving downlink positioning signals from each of a plurality of communication nodes of a mobile communication system at a user device of the mobile communication system, wherein each downlink positioning signal is received from a downlink beam direction for the respective communication node; determining an angle of arrival and/or a time of arrival for each of the received downlink positioning signals; and determining an uplink positioning signal beam configuration based, at least in part, on the determined angle of arrival and/or the determined time of arrival for said received downlink positioning signals.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: April 16, 2024
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Ryan Keating, Benny Vejlgaard, Oana-Elena Barbu, Johannes Harrebek
  • Publication number: 20240107492
    Abstract: There is provided a first device comprising at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the first device at least to perform: establishing a first positioning session between the first device and a third device; and sending, from the first device to a second device, positioning assistance data comprising information associated with a configuration of the first positioning session.
    Type: Application
    Filed: September 25, 2023
    Publication date: March 28, 2024
    Inventors: Diomidis MICHALOPOULOS, Oana-Elena BARBU, Prajwal KESHAVAMURTHY
  • Patent number: 11933908
    Abstract: Systems, methods, apparatuses, and computer program products for reporting of integrity-related information for positioning are provided.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: March 19, 2024
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Ping-Heng Kuo, Oana-Elena Barbu, Diomidis Michalopoulos
  • Publication number: 20240080114
    Abstract: Example embodiments of the present disclosure relate to positioning enhancements. A first device receives, from a second device, first configuration information of a first set of passive radios for transmitting a plurality of first target signals in response to receiving a plurality of first reference signals from a third device. The first device receives, from the third device, at least one first reference signal. Upon receiving the at least one first reference signal, the first device receives, based on the first configuration information, the plurality of first target signals from the first set of passive radios. The first device transmits, to the second device, measurements related to the at least one first reference signal and the plurality of first target signals for positioning the first device. In this way, non-LoS detection for positioning is enabled, and the positioning accuracy is improved.
    Type: Application
    Filed: August 29, 2023
    Publication date: March 7, 2024
    Inventors: Oana-Elena BARBU, Benny VEJLGAARD
  • Publication number: 20240073730
    Abstract: The disclosure relates to an apparatus including at least one processor and at least one memory including computer code for one or more programs, the at least one memory and the computer code configured, with the at least one processor, to cause the apparatus at least to: receive a first reference signal from a first transmission point and a second reference signal from a second transmission point; determine a collinearity indicator for the first transmission point and the second transmission point based on a measurement of the first reference signal and a measurement of the second reference signal; and generate a measurement report based on the collinearity indicator.
    Type: Application
    Filed: January 13, 2021
    Publication date: February 29, 2024
    Inventors: Diomidis MICHALOPOULOS, Oana-Elena BARBU
  • Publication number: 20240073841
    Abstract: An apparatus configured to: receive a downlink signal; determine whether a TA stored at the apparatus is valid based, at least partially, on a reception timing of the received downlink signal and a delay spread value; and initiate small data transmission with a pre-configured uplink resource based, at least partially, on the determination that the TA is valid. An apparatus configured to: transmit, to a UE, a configuration comprising information related to TA validation for the UE, wherein the information comprises at least one of: an indication of a value configured to indicate a fraction of a cyclic prefix length of a symbol for reception of an uplink transmission from the UE, or a delay spread value; transmit a downlink signal; and receive a SDT based, at least partially, on the fraction of the length of the cyclic prefix, the transmitted downlink signal, and the delay spread value.
    Type: Application
    Filed: March 24, 2021
    Publication date: February 29, 2024
    Inventors: Oana-Elena Barbu, Nuno Manuel Kiilerich PRATAS, Daniela LASELVA, Gerhard SCHREIBER
  • Publication number: 20240056336
    Abstract: A method for performing multiple-input and multiple-output channel estimation includes: generating, using a first machine-learning model, an initial set of estimated channel information from a first input set of channel information, wherein the first input set of channel information corresponds to a first plurality of radio-frequency chains, and wherein the estimated set of channel information corresponds to the first plurality of radio-frequency chains and a second plurality of radio-frequency chains; generating, using a second machine-learning model, a set of estimated channel phases from the initial set of estimated channel information and a second input set of channel information, wherein the second set of input channel information corresponds to the second plurality of radio-frequency chains; and combining the initial set of estimated channel information and the set of estimated channel phases to generate an enhanced set of estimated channel information.
    Type: Application
    Filed: December 9, 2021
    Publication date: February 15, 2024
    Inventors: Wolfgang Zirwas, Brenda VILAS BOAS, Zexian LI, Amir Mehdi AHMADIAN TEHRANI, Oana-Elena BARBU
  • Publication number: 20240057019
    Abstract: There are provided apparatuses, methods and computer program products. In accordance with an embodiment, there is disclosed a method including receiving from one or more user equipment an indication that the user equipment is capable to report information about a virtual transmission reception point related to a wireless communication system; configuring a measurement resource set for virtual transmission reception point; informing the one or more user equipment about the measurement resource set; receiving from the one or more user equipment an enhanced measurement report containing measurements of signals received from one or more transmission reception points and virtual transmission reception points; combining several enhanced measurement reports received from one or more user equipment; and estimating locations of the one or more virtual transmission reception points on the basis of the combined enhanced measurement reports.
    Type: Application
    Filed: October 18, 2021
    Publication date: February 15, 2024
    Inventors: Oana-Elena BARBU, Diomidis MICHALOPOULOS, Benny VVEJLGAARD, Mikko SAILY
  • Publication number: 20240057022
    Abstract: A method may include receiving, by a first user device from a network node or a second user device, 1) a positioning measurement report including at least one positioning measurement measured by a reference device, and 2) reference positioning-related information to be used for testing and/or validating a machine learning model; determining estimated positioning-related information as outputs of the machine learning model based on at least a portion of the positioning measurement report as inputs to the machine learning model; determining a performance indication of the machine learning model based on the reference positioning-related information and the estimated positioning-related information, wherein the performance indication indicates a performance or accuracy of the machine learning model; and performing, by the first user device, an action based on the performance indication.
    Type: Application
    Filed: August 9, 2023
    Publication date: February 15, 2024
    Inventors: Muhammad Ikram ASHRAF, Teemu Mikael VEIJALAINEN, Mikko SÄILY, Oana-Elena BARBU, Taylan SAHIN, Afef FEKI, Athul PRASAD
  • Publication number: 20240040542
    Abstract: An apparatus including: circuitry for listening to a PM SL broadcast or multicast broadcasted by a reference UE-S; circuitry for receiving a positioning measurement request from a location server, wherein the positioning measurement request includes a reduced list of transmission points providing PRS to be measured, said reduced list containing a subset of transmission points to be measured with respect to a list that is used for measurement by the reference UE-S; circuitry for selecting respective transmission points to be listened; circuitry for performing the measurement of PRS being listed in the reduced list, where a set of measured PRS is adjusted based on the received PM SL, and where the adjustment concerns excluding measured PRS stored in PMSL; circuitry for generating a report including the PRS; and circuitry for transmitting the report to the location server.
    Type: Application
    Filed: November 18, 2021
    Publication date: February 1, 2024
    Inventors: Oana-Elena Barbu, Diomidis MICHALOPOULOS
  • Patent number: 11882466
    Abstract: Systems, methods, apparatuses, and computer program products for calibrating beam orientation errors for improved positioning. For example, certain embodiments may utilize collection of various measurements to compute, and correct for, beam orientation errors. Additionally, or alternatively, certain embodiments may collect information about propagation conditions in a network and may establish virtual anchors for the network.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: January 23, 2024
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Oana-Elena Barbu, Ryan Keating
  • Publication number: 20240022341
    Abstract: An apparatus, method and computer program is described comprising: determining, using a first passive module, whether one or more of a first plurality of frequency ranges is occupied, wherein each of the first plurality of frequency ranges has one of a first set of one or more bandwidths; determining, using a second passive module, whether one or more of a second plurality of frequency ranges is occupied, wherein each of the second plurality of frequency ranges has one of a second set of one or more bandwidths, and wherein a smallest bandwidth amongst the second set of bandwidths is larger than a largest bandwidth amongst the first set of bandwidths; and triggering an active module in the event that one or more of the first plurality of frequency ranges is determined to be occupied and none of said second plurality of frequency ranges is determined to be occupied, wherein the active module comprises a radio detector for detecting a target waveform.
    Type: Application
    Filed: June 30, 2023
    Publication date: January 18, 2024
    Inventors: Oana-Elena BARBU, Benny VEJLGAARD, Hannu Pekka KAUPPINEN, Johannes HARREBEK
  • Publication number: 20240007986
    Abstract: A measurement gap pattern configuration method of a network element (130) of a wireless communications system includes sending, by the network element (130), assistance data to a user equipment (UE) (110) of the wireless communications system; sending, by the network element (130), positioning performance target data and at least a portion of the assistance data to a serving next generation Node B (gNB) (120) of the UE (110); sending a positioning request to the UE (110); and notifying the gNB (120) that a positioning session has started with respect to the UE (110) by sending a positioning session start notification message to the gNB (120).
    Type: Application
    Filed: October 7, 2021
    Publication date: January 4, 2024
    Inventors: Oana-Elena BARBU, Ping-Heng KUO, Diomidis MICHALOPOULOS
  • Patent number: 11864145
    Abstract: Systems, methods, apparatuses, and computer program products for neighbor cell measurement based timing advance validation. A method may include receiving a network configuration comprising a timing advance command from a network element. The method may also include acquiring at least measurement data of a serving cell relative to a first set of neighbor cells at a first time instance, and measurement data of the serving cell relative to a second set of neighbor cells at a second time instance according to the network configuration. The method may further include performing a timing advance validity check using at least the acquired measurement data from the first time instance and the second time instance. Further, the method may include performing data transmission based on a result of the timing advance validity check.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: January 2, 2024
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Daniela Laselva, Oana-Elena Barbu, Nuno Pratas, Karri Markus Ranta-Aho
  • Publication number: 20230417859
    Abstract: A method, apparatus and computer program is described comprising: obtaining samples of received positioning information from each of a plurality of channels; identifying one or more of said channels as benchmark channels; determining a benchmark channel response representative of channel propagation conditions for the or each benchmark channel; generating a common benchmark channel response based on said benchmark channel responses; estimating channel responses for some or all non-benchmark channels; modifying positioning information samples of at least some of the non-benchmark channels to generate corrected positioning information samples; and combining the positioning information samples of said one or more benchmark channels and the one or more corrected positioning information samples to generate combined positioning information samples.
    Type: Application
    Filed: June 15, 2023
    Publication date: December 28, 2023
    Inventors: Oana-Elena BARBU, Ryan KEATING, Johannes HARREBEK, Benny VEJLGAARD
  • Publication number: 20230413201
    Abstract: This specification describes an apparatus comprising: means for receiving, at a target user equipment, UE, a signal including information indicative of supporting UE measurements of signals transmitted from the target UE to a supporting UE via a multipath communications channel, the supporting UE measurements including delay and angle measurements of the signals transmitted from the target UE to the supporting UE via the multipath communications channel; means for time-aligning the supporting UE measurements with target UE measurements of signals transmitted from the supporting UE to the target UE via the multipath communications channel, the target UE measurements including delay and angle measurements for the signals transmitted from the supporting UE to the target UE via the multipath communications channel; means for determining, based on the time-aligned measurements, an association between a component of the target UE measurements and at least one respective component of the supporting UE measurements,
    Type: Application
    Filed: June 8, 2023
    Publication date: December 21, 2023
    Applicant: Nokia Technologies Oy
    Inventors: Oana-Elena BARBU, Diomidis MICHALOPOULOS
  • Publication number: 20230396960
    Abstract: There are provided measures for provision of vehicle's surrounding intelligence information. Such measures exemplarily include, at a network side node of a cellular system, receiving, from a first mobile entity, a request for combined spatiotemporal surroundings characteristics related to surroundings of said first mobile entity, generating said combined spatiotemporal surroundings characteristics related to said surroundings of said first mobile entity based on a position of said first mobile entity, and transmitting, towards said first mobile entity, said combined spatiotemporal surroundings characteristics related to said surroundings of said first mobile entity, wherein said combined spatiotemporal surroundings characteristics related to said surroundings of said first mobile entity include location information of at least one second mobile entity in the surroundings of said first mobile entity.
    Type: Application
    Filed: October 19, 2020
    Publication date: December 7, 2023
    Inventors: Diomidis MICHALOPOULOS, Anil KIRMAZ, Oana-Elena BARBU
  • Publication number: 20230388929
    Abstract: In order to reduce power consumption of a wireless communication apparatus without unduly increasing latency a way of triggering activation of a transceiver on the apparatus is provided that uses different forms of wakeup signals and corresponding forms of wakeup signal detectors. This allows the transceiver to operate in a discontinuous receiving mode, with the different wakeup signal receivers detecting for wakeup signals at different times the times being indicated to the apparatus by a wakeup signal pattern sent by the network.
    Type: Application
    Filed: May 23, 2023
    Publication date: November 30, 2023
    Applicant: Nokia Technologies Oy
    Inventors: Oana-Elena BARBU, Benny VEJLGAARD
  • Publication number: 20230375655
    Abstract: Systems, methods, apparatuses, and computer program products for dynamic antenna array angular phase deviation compensation for broad beam positioning. For example, certain embodiments may provide for multi-round trip time (multi-RTT) positioning where a user equipment (UE) may report time of departure (TOD) compensation values to a serving gNB and/or location management function (LMF). The LMF may calibrate the RTT computation with the received TOD compensation values. As another example, certain embodiments may provide for uplink time difference of arrival (UL-TDOA) positioning where an LMF may signal calculated assistance information to the UE to request time of departure TOD compensation values. The UE may report the TOD compensation values to a location management function (LMF), and the LMF may compensate initial relative time of arrival (RTOA) estimates using the TOD compensation values.
    Type: Application
    Filed: September 10, 2021
    Publication date: November 23, 2023
    Applicant: Nokia Technologies OY
    Inventors: Johannes HARREBEK, Ryan KEATING, Oana-Elena BARBU, Benny VEJLGAARD, Simon SVENDSEN