Patents by Inventor Henrik Rydén

Henrik Rydén 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: 11012820
    Abstract: Embodiments herein disclose e.g. a method performed by a network node (12,15) for managing positioning of a wireless device (10) in a wireless communications network. The network node, such as a location server determines whether to transmit positioning assistance data, to the wireless device (10) using unicast and/or using broadcast. The network node further triggers a transmission to the wireless device (10), of the positioning assistance data or an indication of the positioning assistance data for the wireless device (10) wherein the transmission is a unicast transmission and/or a broadcast transmission as determined.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: May 18, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Henrik Rydén, Åke Busin, Fredrik Gunnarsson, Sara Modarres Razavi
  • Publication number: 20210120521
    Abstract: Systems and methods for providing unlicensed drone User Equipment (UE) detection in a cellular communications network are disclosed. In this regard, embodiments of a method of operation of a server for providing unlicensed drone UE detection in a cellular communications network are disclosed. In some embodiments, the method includes receiving, from a network node, a measurement report for a UE and predicting that the UE is an unlicensed drone UE based on the measurement report for the UE. The method further includes taking one or more actions upon predicting that the UE is an unlicensed drone UE. In this manner, an efficient unlicensed drone detection mechanism is provided.
    Type: Application
    Filed: March 7, 2019
    Publication date: April 22, 2021
    Inventors: Sakib BIN REDHWAN, Henrik RYDÉN, Zhenhua ZOU, Mirsad CIRKIC, Xingqin LIN
  • Publication number: 20210112515
    Abstract: Exemplary embodiments include methods performed by a network node of a radio access network (RAN). Such embodiments can include establishing a connection with a user equipment (UE) in a cell served by the network node, and determining that the UE is engaged in unauthorized aerial operation. Unauthorized operation can include various UE operational conditions. Such embodiments can also include, based on determining the unauthorized aerial operation, performing at least one of the following operations: restricting the performance of the connection; and sending the UE a message comprising an indication that the connection will be released, and one or more conditions that the UE must meet before attempting to reestablish the connection. Embodiments also include complementary methods performed by one or more core network nodes and/or functions, as well as various network nodes and/or functions that are configured to perform various disclosed methods.
    Type: Application
    Filed: March 28, 2019
    Publication date: April 15, 2021
    Inventors: Zhenhua Zou, Mattias Bergström, Xingqin Lin, Helka-Liina Määttanen, Henrik Rydén, Magnus Stattin
  • Publication number: 20210091365
    Abstract: A user equipment is configured for operation in a narrowband wireless communication system. The user equipment is configured to detect receipt of a narrowband positioning reference signal 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. The user equipment is also configured to perform a positioning measurement using the narrowband positioning reference signal.
    Type: Application
    Filed: December 9, 2020
    Publication date: March 25, 2021
    Inventors: Xingqin Lin, Johan Bergman, Fredrik Gunnarsson, Olof Liberg, Sara Modarres Razavi, Henrik Rydén, Yutao Sui, Yi-Pin Eric Wang
  • Publication number: 20210084447
    Abstract: It is provided a method for detecting when a user equipment, UE, is airborne. The method is performed in a UE status detector and comprises the steps of: obtaining an indicator of variation of signal strengths for signals received in the UE, wherein the signals are transmitted for at least three different cells; and determining, based on the indicator of variation, when the UE is airborne.
    Type: Application
    Filed: April 12, 2018
    Publication date: March 18, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Henrik RYDÉN, Sakib Bin REDHWAN, Xingqin Lin
  • Publication number: 20210076272
    Abstract: A method (420) performed by a network node (102, 700, 800, 960a, 1320) for channel selection for inter-frequency handover. The method comprises generating (400) information usable by a user equipment (UE) (101, 500, 600, 910a, 1330) for determining a sequence of channels to be successively measured by the UE for availability for inter-frequency handover. The method comprises transmitting (410) the information to the UE. A method (320) performed by a wireless device for measuring channels available for inter-frequency handover. The method comprises determining (300) a channel order defining a sequence of channels to be successively measured for availability for inter-frequency handover. The method comprises performing (310) measurement of the channels according to the channel order.
    Type: Application
    Filed: October 1, 2018
    Publication date: March 11, 2021
    Inventors: Joel Berglund, Henrik Rydén, Mirsad Cirkic
  • 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
  • Publication number: 20210025960
    Abstract: Systems and methods for configuring and generating Narrowband Positioning Reference Signals (NPRS) for NB-IoT are provided. A network node provides (NPRS) configuration information indicating a system frame number (SFN) dependent resource mapping. A wireless device obtains a NPRS in accordance with the indicated SFN dependent resource mapping and uses it to perform a radio measurement operation.
    Type: Application
    Filed: April 5, 2019
    Publication date: January 28, 2021
    Inventors: Henrik Rydén, Sara Modarres Razavi, Iana Siomina, Johannes Nygren, Yutao Sui
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • Publication number: 20200359234
    Abstract: A base station (300a) transmits, to a wireless device (100), a criteria for determining that the wireless device (100) has a status. The criteria comprises a height threshold. The wireless device (100) receives the criteria for determining that the wireless device (100) has the status from the base station (300a), The wireless device (100) transmits an indication of the status of the wireless device (100) to the base station (300a). The base station (300a) receives the indication of the status of the wireless device (100).
    Type: Application
    Filed: November 14, 2018
    Publication date: November 12, 2020
    Inventors: Helka-Liina Määttanen, Xingqin Lin, Siva Muruganathan, Henrik Rydén, Vijaya Yajnanarayana, Zhenhua Zou
  • 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
  • Patent number: 10805898
    Abstract: Embodiments herein relate to a method performed by a first communication node (110; 121) for determining the position of a second communication node (122) in a wireless communications network (100). The first communication node (110; 121) transmits a timing measurement message to the second communication node (122) as a beamformed transmission based on channel sounding feedback information received from the second communication node (122). The first communication node (110; 121) also receives an acknowledgement message from the second communication node (122) for the timing measurement message in the beamformed transmission. Furthermore, the first communication node (110; 121) determines the position of the second communication node (122) at least partly based on a transmission time of the timing measurement message and a reception time of the acknowledgement message. Embodiments of the first communication node (110; 121) are also described.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: October 13, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Meng Wang, Fredrik Gunnarsson, Henrik Ryden, Torbjörn Wigren
  • Publication number: 20200322915
    Abstract: A method, performed by a wireless device (120), for reporting at least one measurement to a network node (130) is disclosed. The wireless device (120) determines (420) an extended format to be used for reporting, to the network node (130), at least one of: a code phase measurement, a carrier phase measurement or a GNSS Signal ID. The extended format extends at least one of: a range or a resolution, of an existing format for reporting the at least one of: the code phase measurement, the carrier phase measurement or the GNSS Signal ID. The wireless device (120) then sends (430) a measurement report comprising the at least one of: the code phase measurement, the carrier phase measurement or the GNSS Signal ID, to the network node (130), using the determined extended format. A method performed by the network node (130) is also described, whereby the network node (130) receives the measurement report.
    Type: Application
    Filed: August 10, 2018
    Publication date: October 8, 2020
    Inventors: Xin Zhang, Fredrik Gunnarsson, Sara Modarres Razavi, Henrik Rydén, Ritesh Shreevastav
  • Patent number: 10798674
    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: November 3, 2017
    Date of Patent: October 6, 2020
    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
  • Publication number: 20200314792
    Abstract: Embodiments herein relate to a method performed by a first communication node (110; 121) for determining the position (of a second communication node (122) in a wireless communications network (100). The first communication node (110; 121) transmits a timing measurement message to the second communication node (122) as a beamformed transmission based on channel sounding feedback information received from the second communication node (122). The first communication node (110; 121) also receives an acknowledgement message from the second communication node (122) for the timing measurement message in the beamformed transmission. Furthermore, the first communication node (110; 121) determines the position of the second communication node (122) at least partly based on a transmission time of the timing measurement message and a reception time of the acknowledgement message. Embodiments of the first communication node (110; 121) are also described. Embodiments herein also relate to a second communication.
    Type: Application
    Filed: June 16, 2020
    Publication date: October 1, 2020
    Inventors: Meng Wang, Fredrik Gunnarsson, Henrik Rydèn, Torbjörn Wigren