Patents by Inventor Fredrik Gunnarsson

Fredrik Gunnarsson 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).

  • Conditional termination of RSTD measurements
    Patent number: 11496992
    Abstract: Methods and device for use in a wireless device of reporting positioning measurements comprises receiving network assistance information from a network node. The network assistance information is for assisting the wireless device in performing Observed Time Difference Of Arrival (OTDOA), and comprises: a list of reference cells; a list of neighbor cells; and a rule for terminating Reference Signal Time Difference (RSTD) measurements. The method further comprises performing RSTD measurement between a cell in the reference cell list and a cell in the neighbor cell list. Upon determining the RSTD measurement satisfies the rule for terminating RSTD measurements, the method includes reporting the RSTD measurements to the network node. Upon determining the RSTD measurement does not satisfy the rule for terminating RSTD measurements, performing another RSTD measurement between the cell in the reference cell list and a cell in the neighbor cell list.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: November 8, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sara Modarres Razavi, Johan Bergman, Åke Busin, Fredrik Gunnarsson, Olof Liberg, Xingqin Lin, Henrik Rydèn, Yutao Sui, Martin Van Der Zee
  • CELL GLOBAL IDENTITY REPORTING
    Publication number: 20220322165
    Abstract: The invention refers to a wireless device and to operating the wireless terminal, UE, connected to a serving network node associated to a serving cell of a radio access network, RAN, the method comprising: receiving system information from a neighbour cell of the serving cell, determining from the system information if the neighbour cell does or does not broadcast a global cell identifier, CGI, of the neighbour cell; and if the neighbour cell does not broadcast the CGI, transmitting a global cell identifier, CGI, report to the serving network node, wherein the CGI report includes an indication that the neighbour cell does not broadcast the CGI of the neighbour cell. The invention further refers to a corresponding network node and to a method performed in the network node.
    Type: Application
    Filed: June 20, 2022
    Publication date: October 6, 2022
    Inventors: Reza MOOSAVI, Icaro L.J. DA SILVA, Pradeepa RAMACHANDRA, Fredrik GUNNARSSON
  • Method, apparatus and system for determining a position of a wireless device
    Patent number: 11445469
    Abstract: Methods and apparatuses for determining a position of a wireless device in a wireless communication network are provided. The method includes obtaining a first sequence of Time Difference of Arrivals (TDOAs) at the wireless device of reference signals, which are transmitted by and used for synchronization of a first pair of network nodes; and determining, based on the first sequence of TDOAs, a first relative distance. The method also includes obtaining a second sequence of TDOAs at the wireless device of reference signals, which are transmitted by and used for synchronization of a second pair of network nodes; and determining, based on the first sequence of TDOAs, a second relative distance. The method further includes determining the position of the wireless device based on the first and second relative distances. Corresponding computer programs and computer program carriers are also disclosed.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: September 13, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Satyam Dwivedi, Henrik Asplund, Jonas Medbo, Fredrik Gunnarsson, Ali Zaidi, Sara Modarres Razavi
  • NETWORK-ASSISTED INTER-DRONE POSITIONING
    Publication number: 20220286998
    Abstract: Embodiments of a method performed by a network node for determining a position of a mobile node are disclosed herein. In some embodiments, the method performed by a network node for determining a position of a mobile node includes generating a location transmission schedule for a plurality of mobile nodes. The method further includes sending the location transmission schedule for the plurality of mobile nodes.
    Type: Application
    Filed: August 27, 2019
    Publication date: September 8, 2022
    Inventors: Satyam DWIVEDI, Sara MODARRES RAZAVI, Xingqin LIN, Fredrik GUNNARSSON
  • Radio network node, a wireless device and methods therein for transmission and reception of positioning system information
    Patent number: 11425685
    Abstract: A wireless device and a method therein for receiving positioning system information from a radio network node. The wireless device and the radio network node operate in a wireless communications network. The wireless device receives positioning system information broadcast scheduling information comprising information about positioning System Information Blocks that are comprised in a System Information message. Further, the wireless device receives an indication that a pSIB is segmented into pSIB segments. Based on the indication and on the pSI the wireless device determines whether or not the pSIB segments are scheduled via contiguous scheduling. When the pSIB segments are determined to be scheduled via contiguous scheduling, the wireless device monitors scheduled resources, retrieves the contiguously scheduled pSIB segments and decodes position system information of the retrieved pSIB segments.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: August 23, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Fredrik Gunnarsson, Åke Busin, Tao Cui, Sara Modarres Razavi, Ritesh Shreevastav
  • Methods and nodes for managing position information associated with a group of wireless devices
    Patent number: 11425676
    Abstract: Methods and nodes (110; 115; 116; 117; 120; 121; 130; 140) for managing position information associated with a group of wireless devices (120-121) configured to be served in a wireless communication network (100). It is obtained (201; 301-303; 501; 501a-b) information indicating a first wireless device (120) as member and positioning representative of the group and at least one other, second, wireless device (121) as further member of the group. Said at least one second wireless device (121) being able to communicate wirelessly and directly with the first wireless device (120) over a direct communication link (125). A position of said at least one second wireless device (121) is estimated based on communication of positioning supporting information over said direct communication link (125).
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: August 23, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Xin Zhang, Samuel Axelsson, Fredrik Gunnarsson, Kjell Larsson, Jawad Manssour, Sara Modarres Razavi
  • DEVICE BASED POSITIONING RELYING ON TIMING MEASUREMENTS
    Publication number: 20220236404
    Abstract: A method and UE for determining a position of a UE is provided. Assistance data is obtained from a network node for determining the position of the UE at the UE. A round trip time (RTT) measurement procedure is performed with a serving cell base station to obtain a RTT measurement. A received time is measured of a DL PRS from one or more neighbor base stations. The position is estimated using the assistance data, the RTT measurement and the DL PRS received time. A method and a network node to provide the assistance data is also provided. Information indicative of a distance to each of one or more neighbor base stations of a serving cell base station of the UE and location information of the base stations is obtained. Assistance data is provided to the UE, including the information indicative of the distance and the location information.
    Type: Application
    Filed: May 8, 2020
    Publication date: July 28, 2022
    Inventors: Fredrik GUNNARSSON, Satyam DWIVEDI, Per ERNSTRÖM, Florent MUNIER, Ritesh SHREEVASTAV, Iana SIOMINA
  • Assistance Data for RAT-Dependent Positioning
    Publication number: 20220221548
    Abstract: A wireless device (12) is configured for radio access technology, RAT, dependent positioning in a wireless communication network (10). The wireless device (12) receives, from a network node (18), assistance data (20) that assists the wireless device (12) with RAT-dependent positioning, e.g., downlink Observed Time Difference of Arrival. The assistance data (20) may be based on device-specific information. The device-specific information may for example include a subscription associated with the wireless device (12). The wireless device (12) may perform the RAT-dependent positioning based on assistance from the assistance data (20).
    Type: Application
    Filed: April 30, 2020
    Publication date: July 14, 2022
    Inventors: Ritesh Shreevastav, Åke Busin, Fredrik Gunnarsson
  • Differentiated positioning
    Patent number: 11388545
    Abstract: A solution for providing differentiated positioning services in a wireless communication system is provided. For example, a method to be performed by a wireless device is provided, which includes requesting a high accuracy positioning information from the network, e.g. from a network node. The method further includes obtaining information from the network in response to the request, which is valid for a predefined period of time, and which enables the wireless device to obtain the high accuracy positioning information during the predefined period of time. The method further includes performing positioning or assisting performance of positioning based on the obtained high accuracy positioning information.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: July 12, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Pål Frenger, Erik Eriksson, Fredrik Gunnarsson, Martin Hessler, Pradeepa Ramachandra
  • Methods and user equipment, radio transmitter and network node for managing positioning reference signals
    Patent number: 11387928
    Abstract: A method and a user equipment (110) as well as a method and a radio transmitter (120) for managing positioning reference signals are disclosed. Moreover, a method and a network node (130) for configuring positioning reference signals are disclosed. The network node (130) sends (A050), to the user equipment (110), a reception configuration of positioning reference signals, wherein the reception configuration comprises a cell identity relating to the radio transmitter (120) and an identifier for determining of positioning reference signals. The network node (130) sends (A070), to the radio transmitter (120), a transmit configuration of positioning reference signals, wherein the transmit configuration comprises the cell identity and the identifier. The radio transmitter (120) determines (A090) the positioning reference signals based on the cell identity and the identifier. The radio transmitter (120) sends (A100) the positioning reference signals to the user equipment (110).
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: July 12, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Henrik Rydén, Fredrik Gunnarsson, Sara Modarres Razavi, Meng Wang
  • POSITIONING MEASUREMENT REPORTING FOR MOBILE RADIO NETWORK NODES
    Publication number: 20220217673
    Abstract: Systems and methods for providing measurement reporting for mobile radio network nodes are provided. Embodiments of a method performed by a user equipment (UE) comprise obtaining, from a location server, positioning assistance information comprising information for mobile radio network nodes and their corresponding downlink signal configurations, and measuring one or more positioning parameters corresponding to each of one or more mobile radio network nodes. In another embodiment, a method performed by a location server comprises determining mobile radio network nodes in a vicinity of a UE, and sending, to the UE, positioning assistance information comprising information for mobile radio network nodes and their corresponding downlink signal configurations.
    Type: Application
    Filed: May 15, 2019
    Publication date: July 7, 2022
    Inventors: Ali Zaidi, Ritesh Shreevastav, Fredrik Gunnarsson, Henrik Rydén, Satyam Dwivedi, Sara Modarres Razavi
  • Network architecture, methods, and devices for a wireless communications network
    Patent number: 11381445
    Abstract: Methods and apparatus in a fifth-generation wireless communications network, including an example method, in a wireless device, that includes determining a reporting quality threshold for a parameter related to channel state information (CSI); performing a measurement for each of a plurality of beams from a first predetermined set of beams for evaluation; evaluating the measurement for each of the plurality of beams against the reporting quality threshold; discontinuing the performing and evaluating of measurements in response to determining that the reporting quality threshold is met for one of the beams, such that one or more beams in the first predetermined set of beams are not measured and evaluated; and reporting, to the wireless communications network, CSI for the one of the beams.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: July 5, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Stefan Parkvall, Janne Peisa, Gunnar Mildh, Robert Baldemair, Stefan Wager, Jonas Kronander, Karl Werner, Richard Abrahamsson, Ismet Aktas, Peter Alriksson, Junaid Ansari, Shehzad Ali Ashraf, Henrik Asplund, Fredrik Athley, Håkan Axelsson, Joakim Axmon, Johan Axnäs, Kumar Balachandran, Gunnar Bark, Jan-Erik Berg, Andreas Bergström, Håkan Björkegren, Nadia Brahmi, Cagatay Capar, Anders Carlsson, Andreas Cedergren, Mikael Coldrey, Icaro L. J. da Silva, Erik Dahlman, Ali El Essaili, Ulrika Engström, Mårten Ericson, Erik Eriksson, Mikael Fallgren, Rui Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskär, Johan Furuskog, Virgile Garcia, Ather Gattami, Fredrik Gunnarsson, Ulf Gustavsson, Bo Hagerman, Fredrik Harrysson, Ning He, Martin Hessler, Kimmo Hiltunen, Songnam Hong, Dennis Hui, Jörg Huschke, Tim Irnich, Sven Jacobsson, Niklas Jaldén, Simon Järmyr, Zhiyuan Jiang, Martin Johansson, Niklas Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landström, Christina Larsson, Gen Li, Bo Lincoln, Lars Lindbom, Robert Lindgren, Bengt Lindoff, Fredrik Lindqvist, Jinhua Liu, Thorsten Lohmar, Qianxi Lu, Lars Manholm, Ivana Maric, Jonas Medbo, Qingyu Miao, Reza Moosavi, Walter Müller, Elena Myhre, Johan Nilsson, Karl Norrman, Bengt-Erik Olsson, Torgny Palenius, Sven Petersson, Jose Luis Pradas, Mikael Prytz, Olav Queseth, Pradeepa Ramachandra, Edgar Ramos, Andres Reial, Thomas Rimhagen, Emil Ringh, Patrik Rugeland, Johan Rune, Joachim Sachs, Henrik Sahlin, Vidit Saxena, Nima Seifi, Yngve Selén, Eliane Semaan, Sachin Sharma, Cong Shi, Johan Sköld, Magnus Stattin, Anders Stjernman, Dennis Sundman, Lars Sundström, Miurel Isabel Tercero Vargas, Claes Tidestav, Sibel Tombaz, Johan Torsner, Hugo Tullberg, Jari Vikberg, Peter Von Wrycza, Thomas Walldeen, Anders Wallén, Pontus Wallentin, Hai Wang, Ke Wang Helmersson, Jianfeng Wang, Yi-Pin Eric Wang, Niclas Wiberg, Emma Wittenmark, Osman Nuri Can Yilmaz, Ali Zaidi, Zhan Zhang, Zhang Zhang, Yanli Zheng
  • Provision of Positioning Reference Signals
    Publication number: 20220196780
    Abstract: Some embodiments advantageously provide methods, wireless devices and network nodes for adapting PRS transmission to hide the local clock information of base stations. According to one aspect, an exemplary process includes a network node for transmitting PRS. The process includes delaying or advancing the transmission of at least one positioning reference signal in accordance with received offset information wherein delaying or advancing the transmission according to the offset information shifts the transmission of the at least one positioning reference signal away from a scheduled transmission time for the one positioning reference signal transmission.
    Type: Application
    Filed: August 17, 2018
    Publication date: June 23, 2022
    Inventors: Satyam DWIVEDI, Henrik RYDÉN, Sara MODARRES RAZAVI, Fredrik GUNNARSSON
  • Cell global identity reporting
    Patent number: 11368883
    Abstract: The invention refers to a wireless device and to operating the wireless terminal, UE, connected to a serving network node associated to a serving cell of a radio access network, RAN, the method comprising: receiving system information from a neighbour cell of the serving cell, determining from the system information if the neighbour cell does or does not broadcast a global cell identifier, CGI, of the neighbour cell; and if the neighbour cell does not broadcast the CGI, transmitting a global cell identifier, CGI, report to the serving network node, wherein the CGI report includes an indication that the neighbour cell does not broadcast the CGI of the neighbour cell. The invention further refers to a corresponding network node and to a method performed in the network node.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: June 21, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Reza Moosavi, Icaro L. J. da Silva, Pradeepa Ramachandra, Fredrik Gunnarsson
  • Determining a relationship between a first and a second node
    Patent number: 11362794
    Abstract: It is provided a method for determining a relationship between a first node and at least one second node each serving one different or the same wireless communication network, the method comprising the steps of detecting pilot contamination; and determining a relationship between the first node and at least one of the second nodes based on the detected pilot contamination.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: June 14, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Reza Moosavi, Fredrik Gunnarsson, Martin Hessler, Pradeepa Ramachandra
  • Method and apparatus for handling positioning of a target device
    Patent number: 11363418
    Abstract: Embodiments herein relate to a method performed by a target device, for handling positioning of the target device. The target device determines one or more displacements of the target device in relation to a reference position based on measurements performed by at least one location source. The target device sends, to a network node, a report comprising the determined one or more displacements of the target device, and a reference time to which the reference position is associated. Embodiments herein further relate to a method performed by a network node, for handling positioning of the target device. The network node obtains, from the target device, a report comprising the determined one or more displacements of the target device in relation to a reference position, wherein the one or more displacements have been determined based on measurements performed by at least one location source, and a reference time to which the reference position is associated.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: June 14, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Henrik Rydén, Fredrik Gunnarsson, Sara Modarres Razavi, Ritesh Shreevastav
  • Reporting an indication of one or more estimated signal parameters
    Patent number: 11363503
    Abstract: In one example aspect, a method is provided of reporting an indication of one or more estimated signal parameters of a signal from a first cell, beam or frequency in a cellular communications network. The method comprises configuring a signal parameter estimation model based on configuration information from a second cell in the cellular communications network, and determining an indication of one or more estimated signal parameters of a signal from the first cell, beam or frequency using the parameter estimation model. The method also comprises sending the indication to the second cell in response to the indication or the one or more estimated signal parameters satisfying one or more criteria.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: June 14, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Mirsad Cirkic, Fredrik Gunnarsson, Joel Berglund
  • NARROWBAND POSITIONING REFERENCE SIGNAL CONFIGURATION
    Publication number: 20220182197
    Abstract: Systems and methods for configuring Narrowband Positioning Reference Signals (NPRS) for NB-IoT are provided. A network node generates and transmits NPRS configuration information including a first NPRS bitmap for FDD mode and/or a second NPRS bitmap for TDD mode. A wireless device can determine a NPRS configuration in accordance with the second NPRS bitmap for TDD mode and perform measurements using the NPRS configuration.
    Type: Application
    Filed: February 14, 2019
    Publication date: June 9, 2022
    Inventors: Sara MODARRES RAZAVI, Ritesh SHREEVASTAV, Fredrik GUNNARSSON, Xingqin LIN, Iana SIOMINA, Yutao SUI, Gerardo Agni MEDINA ACOSTA
  • Minimization of Drive Test Configuration Details in New Radio
    Publication number: 20220182850
    Abstract: A method performed by a wireless device for configured Minimization of Drive Test, MDT, reporting includes obtaining a MDT configuration. The obtained MDT configuration is for one or more of immediate MDT and logged MDT. The MDT configuration is for performing one or more measurements associated with a specific reference signal type, beam level, or positioning assistance data, and the obtained MDT configuration comprising one or more of: a reportOnLeaveconfiguration; a reportQuantityRS-Indexes configuration; a maxNrofRS-IndexesToReport configuration: and an rsType configuration. The wireless device performs the one or more measurements according to the MDT configuration and provides an MDT report based on the one or more measurements.
    Type: Application
    Filed: March 27, 2020
    Publication date: June 9, 2022
    Inventors: Pradeepa Ramachandra, Wei Shen, Malik Wahaj Arshad, Fredrik Gunnarsson
  • A Radio Network Node, a Wireless Device and Methods Therein for Scheduling Positioning System Information Block (SIB)
    Publication number: 20220182920
    Abstract: A wireless device 10,120 and a method performed therein for receiving scheduled positioning system information from a radio network node 20, 110. The wireless device and the radio network node operate in a wireless communications network 100. The wireless device receives, from the radio network node, positioning system information scheduling information (pSI) and at least one out of a scheduling offset and a number of system information messages with positioning system information blocks (pSIMs) per system information (SI) window. Further, the wireless device determines in which subframes one or more pSIMs are scheduled by the radio network node based on the pSI and based on at least one out of the scheduling offset and the number of pSIMs per SI window. Furthermore, the wireless device uses the determined scheduling of the one or more pSIMs for receiving the one or more pSIMs.
    Type: Application
    Filed: May 8, 2019
    Publication date: June 9, 2022
    Inventors: Fredrik Gunnarsson, Håkan Palm, Ritesh Shreevastav, Sara Modarres Razavi