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).

  • Network node, communication device and method for idle mode positioning configuration
    Patent number: 10945122
    Abstract: A wireless communication device (330) and method therein for performing positioning related measurement during idle mode in a wireless communication networks (300) are disclosed. The wireless communication device (330) is capable of wireless communication with at least a first network node (320) in a first cell (310). The wireless communication device (330) obtains information on a specific configuration associated with positioning measurements to be performed in idle mode. The wireless communication device (330) performs positioning related measurements based on the obtained information and provides (430) the positioning related measurements to the first network node.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: March 9, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fredrik Gunnarsson, Iana Siomina, Martin van der Zee
  • Network architecture, methods, and devices for a wireless communications network
    Patent number: 10938497
    Abstract: Methods and apparatus in a fifth-generation wireless communications, including an example method, in a wireless device, that includes receiving a downlink signal comprising an uplink access configuration index, using the uplink access configuration index to identify an uplink access configuration from among a predetermined plurality of uplink access configurations, and transmitting to the wireless communications network according to the identified uplink access configuration. The example method further includes, in the same wireless device, receiving, in a first subframe, a first Orthogonal Frequency-Division Multiplexing (OFDM) transmission formatted according to a first numerology and receiving, in a second subframe, a second OFDM transmission formatted according to a second numerology, the second numerology differing from the first numerology. Variants of this method, corresponding apparatuses, and corresponding network-side methods and apparatuses are also disclosed.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: March 2, 2021
    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, Niklas Johansson, Martin Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landstrom, Christina Larsson, Gen Li, 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, 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, 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
  • A Method and a First Device for Clock Synchronization
    Publication number: 20210058181
    Abstract: A method and a first device (110A) for synchronizing a first clock in the first device (110A) with a second clock in a second device (110B). The first device (110A) estimates 5 (A430) a relative clock phase offset, based on a sequence of round trip times, RTTs, of precision time protocol, PTP, messages which are exchanged between the first and second devices (110A, 110B). The estimated relative clock phase offset is a time difference between a time of arrival of a first arrived PTP message among the PTP messages and a direct subsequent clock cycle. The first device (110A) further determines 10 (A450) a clock value of the first clock, based on the estimated relative clock phase offset, to synchronize the first clock with the second clock.
    Type: Application
    Filed: March 14, 2018
    Publication date: February 25, 2021
    Inventors: Satyam Dwivedi, Fredrik Gunnarsson, Bo Hagerman, Avneesh Vyas
  • First Network Node, Second Network Node, Wireless Device and Methods Therein for Handling Broadcast Information
    Publication number: 20210050925
    Abstract: A method for handling broadcast information is described. A first network node (111) operating in a wireless communications network (100) determines (403) one or more decryption keys (K1, K2, K3) to be provided to a wireless device (131) in the wireless communications network (100). The decryption keys enable the wireless device (131) to decrypt information to be broadcasted by a second network node (112) in the wireless communications network (100). The information comprises a plurality of subsets of positioning information. Each of the subsets is to be, or is, encrypted with a different encryption key based on a respective type of subscription for wireless devices (131, 132, 133) in the wireless communications network (100). The determined decryption keys are based on at least one type of subscription of the wireless device (131). The first network node (111) then initiates (404) providing the determined to the wireless device (131).
    Type: Application
    Filed: April 30, 2018
    Publication date: February 18, 2021
    Inventors: Sara Modarres Razavi, Åke Busin, Fredrik Gunnarsson, Karl Norrman, Henrik Rydén
  • Minimization of Driving Test Measurements
    Publication number: 20210044999
    Abstract: A wireless device signals a Minimization of Driving Test (MDT) configuration by signalling to a network node operating in a first communications technology whether the wireless device is configured to enable a previously disabled second communications technology, if requested by the network node to make a measurement using the second communications technology, and/or by signalling to the network node operating in the first communications technology whether the wireless device is configured to activate the one or more second communications technology from an enabled but inactive state, if requested to make a measurement using the second communications technology.
    Type: Application
    Filed: March 29, 2019
    Publication date: February 11, 2021
    Inventors: Dong Chen, Mattias Bergström, Fredrik Gunnarsson
  • TECHNIQUE FOR ESTABLISHING A COMMUNICATION HIERARCHY AMONG A PLURALITY OF DEVICES
    Publication number: 20210044479
    Abstract: A technique for establishing a communication hierarchy among a plurality of devices (102) in an Internet of Things, IoT, environment (100) is disclosed. The communication hierarchy includes one or more parent-child relationships among the plurality of devices (102) defining communication paths to be used for communication between devices (102) on different levels of the communication hierarchy.
    Type: Application
    Filed: February 7, 2018
    Publication date: February 11, 2021
    Applicant: Telefonaktiebolage LM Erisson (publ)
    Inventors: Fredrik GUNNARSSON, Jan HEDEREN, Thomas RIMHAGEN, Wei SHEN, Jingcheng ZHANG
  • Methods for Reference Determination in Inter-RAT TDOA
    Publication number: 20210029573
    Abstract: A wireless device adapted for operation according to two or more radio access technologies, RATs, obtains positioning reference signal configuration information by sending (602), to a location server, a request for assistance, the request for assistance comprising information about a cell serving the wireless device according to a first RAT. The wireless device receives (604), in response to the request for assistance, positioning reference signal configuration information, the positioning reference signal configuration information identifying one or more signals transmitted according to a second RAT, for measurement by the wireless device. The wireless device measures (606) at least one of the identified one or more signals and may report the measurements and/or estimate a location for the wireless device based on the measurements.
    Type: Application
    Filed: October 8, 2020
    Publication date: January 28, 2021
    Inventors: Iana Siomina, Fredrik Gunnarsson
  • Conditional Termination of RSTD Measurements
    Publication number: 20210022106
    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: Application
    Filed: October 1, 2020
    Publication date: January 21, 2021
    Inventors: Sara MODARRES RAZAVI, Johan BERGMAN, Åke BUSIN, Fredrik GUNNARSSON, Olof LIBERG, Xingqin LIN, Henrik RYDÈN, Yutao SUI, Martin VAN DER ZEE
  • Method and Apparatus for Handling Positioning of a Target Device
    Publication number: 20210021965
    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: Application
    Filed: August 11, 2020
    Publication date: January 21, 2021
    Inventors: Henrik Rydén, Fredrik Gunnarsson, Sara Modarres Razavi, Ritesh Shreevastav
  • Method for detection of a narrowband positioning reference signal (NPRS) location in a radio frame
    Patent number: 10890646
    Abstract: Embodiments of the disclosure provide methods and apparatus for positioning in a wireless network. One embodiment provides a method, performed by a target device, for enabling detection of a narrowband positioning reference signal, NPRS, location in a radio frame. The method includes: obtaining, from a location server, assistance data related to a neighbour cell in a reference and neighbour cell list. The assistance data incudes timing offset information for the neighbour cell; determining a time of a NPRS subframe for the neighbour cell and/or NPRS sequence based on the timing offset information; measuring a positioning reference signal (PRS) based on the determined time; and reporting the measured PRS to the location server.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: January 12, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Xingqin Lin, Fredrik Gunnarsson, Olof Liberg, Sara Modarres Razavi, Henrik Rydén, Iana Siomina
  • Method and apparatus in a global navigation system
    Patent number: 10890665
    Abstract: Embodiments relate to a location server, a wireless device and methods performed therein for positioning the wireless device. The wireless device (120) is arranged to perform measurements associated to estimating the position of the wireless device (120), wherein the wireless device (120) is configured to: perform a code phase measurement on a satellite signal between a satellite and the wireless device (120), wherein the code phase measurement indicates a number of cycles of a code phase of the satellite signal, the number comprising a first integer part and a first fractional part; perform a carrier phase measurement on the first fractional part; and send to a location server (130) a report of the code phase measurement and the carrier phase measurement, for estimating the position of the wireless device (120).
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: January 12, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sara Modarres Razavi, Fredrik Gunnarsson, Henrik Rydén, Xin Zhang
  • Network, network nodes and method therein for handling connection in a wireless communication network
    Patent number: 10893445
    Abstract: Network node (111) and method therein for assisting a user equipment (130) to handle a connection in a wireless communication network (100) are disclosed. A first network node (111) and a second network node (112) operate in the wireless communication network (100). The first network node (111) is a serving network node for the user equipment (130). The first network node (111) determines that the user equipment (130) is under an idle mode coverage of the second network node (112) based on measurements associated to the user equipment (130). When a connected mode connection between the user equipment (130) and the first network node (111) is released, the first network node sends a context of the user equipment (130) to the second network node (112).
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: January 12, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Fredrik Gunnarsson, Icaro L. J. Da Silva, Reza Moosavi, Pradeepa Ramachandra, Claes Tidestav, Kristina Zetterberg
  • Narrowband positioning reference signal
    Patent number: 10887063
    Abstract: A user equipment (16) is configured for operation in a narrowband wireless communication system (10). The user equipment (16) is configured to detect receipt of a narrowband positioning reference signal (20) that comprises a narrowband reference signal sequence. The narrowband reference signal sequence is a subsequence of a wideband reference signal sequence. The wideband reference signal sequence is configured for a wideband frequency bandwidth that is wider than a maximum frequency bandwidth defined for the narrowband wireless communication system (10). The user equipment (16) is also configured to perform a positioning measurement using the narrowband positioning reference signal (20).
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: January 5, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Xingqin Lin, Johan Bergman, Fredrik Gunnarsson, Olof Liberg, Sara Modarres Razavi, Henrik Rydén, Yutao Sui, Yi-Pin Eric Wang
  • Differentiated positioning
    Patent number: 10880673
    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: May 15, 2019
    Date of Patent: December 29, 2020
    Inventors: Pål Frenger, Erik Eriksson, Fredrik Gunnarsson, Martin Hessler, Pradeepa Ramachandra
  • Identification of neighboring network nodes in a wireless communication network
    Patent number: 10880760
    Abstract: Methods, nodes and arrangements for supporting identification of one or more neighboring network nodes comprised in a wireless communication network. A communication device is associated with a communicative connection to a first network node, e.g. a serving base station. The communication device obtains a first identifier identifying the first network node, and transmits the obtained first identifier in an uplink so that the first identifier is receivable by one or more other, second network nodes, e.g. non-serving base stations. Receipt of the first identifier by a second network node enables identification of the first radio network node as neighboring said second radio network node. The second network node obtains, based on the first identifier, an address of the first network node, and/or a second identifier uniquely identifying the first network node, in the wireless communication network.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: December 29, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Pradeepa Ramachandra, Mehdi Amirijoo, Andreas Bergström, Fredrik Gunnarsson
  • Radio network node, location node, wireless device and methods performed therein for reporting measured positioning information
    Patent number: 10871545
    Abstract: Embodiments herein relate to a method performed by a wireless device (10) for handling positioning of the wireless device in a wireless communications 5 network (1). The wireless device (10) receives assistance data from a location node (15), or a radio network node (12), in the wireless communications network, wherein the assistance data comprises a positioning configuration comprising a start and/or stop information indicating when positioning reference signal, PRS, transmissions from the radio network node are started and/or ended. The wireless device measures, based on the assistance data, a positioning information of PRSs; and transmits the measured positioning information to the location node or the radio network node.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: December 22, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sara Modarres Razavi, Åke Busin, Fredrik Gunnarsson, Olof Liberg, Xingqin Lin, Gino Masini, Henrik Rydén, Yutao Sui
  • Radio network node, and method performed therein for handling communication in a wireless communication network
    Patent number: 10863365
    Abstract: Embodiments herein relate to a first radio network node for handling communication of a wireless device in a wireless communication network, wherein the first radio network node provides radio coverage over a first service area using a first reference signal, which first reference signal is for identifying the first service area in the wireless communication network. The first radio network node changes one or more antenna parameters, corresponding to one or more antenna ports used for an active mode transmission for the wireless device, independently of one or more other antenna parameters corresponding to one or more other antenna ports used for an idle mode transmission within the first service area. The first radio network node further uses the one or more antenna ports for active mode transmissions for the wireless device and/or the one or more other antenna ports for idle mode transmissions within the first service area.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: December 8, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Pål Frenger, Fredrik Gunnarsson, Pradeepa Ramachandra
  • SFTD AND ANR SPECIFIC REPORTING
    Publication number: 20200359251
    Abstract: Systems and methods for System Frame Number (SFN) Frame Time Difference (SFTD) reporting are disclosed. Embodiments of a method of operation of a User Equipment (UE) in a wireless network to perform SFTD measurements between a Primary Cell (PCell) of the UE and one or more other cells is provided. In some embodiments, the method comprises receiving, from a network node in the wireless network, a list of cells for which the UE can report SFTD measurements. The method further comprises performing SFTD measurements and reporting the SFTD measurements in accordance with the list of cells for which the UE can report SFTD measurements. In this manner, SFTD reporting is provided in an efficient manner.
    Type: Application
    Filed: February 20, 2019
    Publication date: November 12, 2020
    Inventors: Fredrik GUNNARSSON, Icaro L. J. DA SILVA, Pradeepa RAMACHANDRA
  • Methods for reference determination in inter-RAT TDOA
    Patent number: 10834623
    Abstract: A wireless device adapted for operation according to two or more radio access technologies, RATs, obtains positioning reference signal configuration information by sending (602), to a location server, a request for assistance, the request for assistance comprising information about a cell serving the wireless device according to a first RAT. The wireless device receives (604), in response to the request for assistance, positioning reference signal configuration information, the positioning reference signal configuration information identifying one or more signals transmitted according to a second RAT, for measurement by the wireless device. The wireless device measures (606) at least one of the identified one or more signals and may report the measurements and/or estimate a location for the wireless device based on the measurements.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: November 10, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Iana Siomina, Fredrik Gunnarsson
  • OTDOA network assistance to MTC/NB-IoT user equipment
    Patent number: 10834695
    Abstract: According to certain embodiments, a method is disclosed for use in a wireless device that is configured as a Narrowband Internet-of-Things (NB-IoT) device or a machine-type-communication (MTC) device. The method comprises determining at least one parameter related to positioning. The at least one parameter is based on a capability of the wireless device that relates to observed time difference of arrival (OTDOA) positioning with NB-IoT or MTC. The method further comprises using the determined at least one parameter related to positioning.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: November 10, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sara Modarres Razavi, Johan Bergman, Fredrik Gunnarsson, Olof Liberg, Xingqin Lin, Henrik Rydén, Iana Siomina, Yutao Sui