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).

  • Publication number: 20200304226
    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: Application
    Filed: June 8, 2020
    Publication date: September 24, 2020
    Inventors: Henrik RYDÉN, Fredrik GUNNARSSON, Sara MODARRES RAZAVI, Meng WANG
  • Publication number: 20200296681
    Abstract: A method, apparatus, and system are provided for facilitating positioning based on signal correlation function characteristic feedback. In an embodiment, the method may involve steps performed by a network node in communication with a wireless communication device (WCD) and a plurality of base stations. The network node receives, from the WCD, location information including position reference signal (PRS) correlation function characteristics of a cross-correlation between a received downlink signal and a transmitted PRS for each base station from the plurality of base stations. The network node determines a position of the WCD using the PRS correlation function characteristics. The WCD may initiate the transmission of the PRS correlation function characteristics on its own, or in response to a request to do so from the network node.
    Type: Application
    Filed: June 2, 2020
    Publication date: September 17, 2020
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fredrik GUNNARSSON, Sara MODARRES RAZAVI, Henrik RYDÉN, Meng WANG, Ali ZAIDI
  • Patent number: 10779125
    Abstract: Embodiments herein relate to a method performed by a target device (10), for handling positioning of the target device. The target device determines one or more displacements of the target device (10) in relation to a reference position based on measurements performed by at least one location source. The target device (10) sends, to a network node (20), a report comprising the determined one or more displacements of the target device (10), and a reference time to which the reference position is associated. Embodiments herein further relate to a method performed by a network node (20), for handling positioning of the target device (10). The network node obtains, from the target device (10), a report comprising the determined one or more displacements of the target device (10) 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: February 7, 2019
    Date of Patent: September 15, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Henrik Rydén, Fredrik Gunnarsson, Sara Modarres Razavi, Ritesh Shreevastav
  • Publication number: 20200280820
    Abstract: According to one of the aspects of the proposed technology, there is provided a method for positioning of a target device in a wireless communication system. The method comprises obtaining beam quality information relating to reference beams transmitted from at least two network nodes according to specific beam patterns, and obtaining beam pattern information representative of the specific beam patterns. The method also comprises determining a position of the target device based on the beam quality information and the beam pattern information. In this way, improved positioning accuracy may be obtained in an efficient manner.
    Type: Application
    Filed: September 13, 2017
    Publication date: September 3, 2020
    Inventors: Xin Zhang, Fredrik Gunnarsson, Henrik Rydén, Sara Modarres Razavi
  • Patent number: 10727970
    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: May 11, 2017
    Date of Patent: July 28, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Henrik Rydén, Fredrik Gunnarsson, Sara Modarres Razavi, Meng Wang
  • Publication number: 20200236644
    Abstract: Embodiments herein disclose a method performed by a wireless device for managing positioning of the wireless device in the wireless communications network. The wireless device obtains, from a network node, assistance data or configuration data comprising two or more positioning reference signal, PRS, configurations associated with a radio network node or a service area of the radio network node. The wireless device further indicates, to the network node, a scope of usage of the two or more PRS configurations with an indication.
    Type: Application
    Filed: January 26, 2018
    Publication date: July 23, 2020
    Inventors: Fredrik Gunnarsson, Henrik Rydén, Sara Modarres Razavi
  • Patent number: 10721015
    Abstract: A Radio Network Node (RNN) and a method for enabling an improved reception of Positioning Reference Signals (PRSs) at a communications device. The RNN and the communications device are operable in a wireless communications network. The RNN selects a first precoder and a second precoder for forming a first beam and a second beam, respectively, and obtains a precoding switching pattern relating to when the first precoder is to be applied to one or more first PRS symbols and when the second precoder is to be applied to one or more second PRS symbols. Further, the RNN transmits, to the communications device, the one or more first PRS symbols to which the first precoder is applied; and in accordance with the obtained precoding switching pattern, the RNN transmits, to the communications device, the one or more second PRS symbols to which the second precoder is applied.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: July 21, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Henrik Rydén, Fredrik Gunnarsson, Sara Modarres Razavi, Ali Zaidi, Meng Wang
  • Patent number: 10716010
    Abstract: The present invention relates to an improved predicting of target carrier radio conditions in a communication network. The improved prediction is achieved by acquiring, by a first network node, measurement data based on radio signals at a source carrier and a first target carrier. Subsequently, a target carrier radio condition prediction function is identified by the first network node or a second network node.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: July 14, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mirsad Cirkic, Samuel Axelsson, Joel Berglund, Fredrik Gunnarsson, Pradeepa Ramachandra, Henrik Rydén
  • Publication number: 20200217918
    Abstract: There is provided a method for providing Observed Time Difference of Arrival (OTDOA) Reference Signal Time Difference (RSTD) measurements from a wireless device to a location server. The method comprises sending, from the wireless node to the location server, a capability to support OTDOA location measurements using multipath RSTD, receiving, at the wireless node, a request for OTDOA location measurements using multipath RSTD, from the location server. The method comprises receiving, at the wireless node, assistance data providing details of required OTDOA location measurements using multipath RSTD from the location server, receiving, at the wireless node, a signal from an RSTD reference cell and a neighbor cell. The method comprises observing, at the wireless node, a time difference between the received signals thereby obtaining the required OTDOA location measurements using multipath RSTD and sending the required OTDOA location measurements using multipath RSTD from the wireless node to the location server.
    Type: Application
    Filed: November 1, 2017
    Publication date: July 9, 2020
    Inventors: Henrik Rydén, Sara Modarres Razavi, Fredrik Gunnarsson, Kai-Erik Sunell
  • Patent number: 10708881
    Abstract: A method, apparatus, and system are provided for facilitating positioning based on signal correlation function characteristic feedback. In an embodiment, the method may involve steps performed by a network node in communication with a wireless communication device (WCD) and a plurality of base stations. The network node receives, from the WCD, location information including position reference signal (PRS) correlation function characteristics of a cross-correlation between a received downlink signal and a transmitted PRS for each base station from the plurality of base stations. The network node determines a position of the WCD using the PRS correlation function characteristics. The WCD may initiate the transmission of the PRS correlation function characteristics on its own, or in response to a request to do so from the network node.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: July 7, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fredrik Gunnarsson, Sara Modarres Razavi, Henrik Rydén, Meng Wang, Ali Zaidi
  • Publication number: 20200187140
    Abstract: Method for handling synchronization of a wireless device (130). The first network node (111) and the wireless device (130) operate in a wireless communications network (100). The first network node (111) determines (202) whether or not the wireless device (130) requires synchronization, during a first time period, with a second network node (112) serving the wireless device (130). The determining (202) is based on a prediction of at least one of: a) data communication between the wireless device (130) and the second network node (112) during the first time period, and b) the wireless device (130) lacking synchronization during the first time period. The first network node (111) initiates (203), based on a result of the determination, a synchronization procedure of the wireless device (130) during a second time period. The second time period precedes the first time period, so that the synchronization procedure is completed prior to the first time period.
    Type: Application
    Filed: July 11, 2017
    Publication date: June 11, 2020
    Inventors: Joel Berglund, Henrik Rydén
  • Publication number: 20200178200
    Abstract: The embodiments herein relate to a method, performed by a target device (10), for handling positioning of the target device (10). The target device obtains, from a network node (20), a sensor reporting configuration. The target device obtains sensor measurements. The target device determines a reporting scope based on the obtained sensor measurements according to the obtained sensor reporting configuration. The target device sends, to the network node (20), a measurement report comprising the sensor measurements according to the determined reporting scope, wherein the measurement report comprises a displacement of the target device relative to a reference position. The embodiments further relate to a a corresponding method performed by the network node (20).
    Type: Application
    Filed: July 11, 2018
    Publication date: June 4, 2020
    Inventors: Fredrik Gunnarsson, Sara Modarres Razavi, Henrik Rydén
  • Patent number: 10673485
    Abstract: A method and a receiving node for determining Time Of Arrival (TOA) for a radio signal received from a transmitting node in a wireless network. The receiving node detects the received radio signal by cross-correlating the received radio signal with a predefined reference signal transmitted by the transmitting node, to obtain a Cross-Correlated Function (CCF). The receiving node then estimates a set of candidate TOAs for respective signal components of the cross-correlated signal, and determines a final TOA for the received radio signal based on the set of candidate TOAs.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: June 2, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Henrik Rydén, Fredrik Gunnarsson, Sara Modarres Razavi, Ali Zaidi
  • Publication number: 20200169336
    Abstract: The present disclosure relates to radio network communication. In one of its aspects, the disclosure presented herein concerns a method for performing beam-based positioning. The method is implemented in a target device. According to the method, a list of transmitter beam IDentities (IDs) accompanied with corresponding beam-based Positioning Reference Signal (PRS) configurations for one or more radio cells associated with one or more radio network nodes are received. Different beam-based PRS sequences are used for different transmitter beams of one radio network node. Based on the received list of transmitter beam IDs accompanied with corresponding PRS configurations, a set of transmitter beams for subsequent measuring are determined.
    Type: Application
    Filed: November 26, 2018
    Publication date: May 28, 2020
    Inventors: Sara Modarres Razavi, Fredrik Gunnarsson, Henrik Rydén, Iana Siomina
  • Patent number: 10656241
    Abstract: A method performed by a wireless device for reporting an RSTD value to a network node of a wireless communication network. The method includes receiving a configuration of positioning reference signals (PRSs) from the network node, the configuration indicating a plurality of PRS identities for respective transmission points (TPs) of the wireless communication network, determining an RSTD value for a TP based on the received configuration, and reporting the determined RSTD value for the TP to the network node. A first frequency reuse factor for the PRSs that is lower than a default second frequency reuse factor may be used.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: May 19, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Henrik Rydén, Fredrik Gunnarsson, Xingqin Lin, Sara Modarres Razavi
  • Patent number: 10644775
    Abstract: A signal quality associated with radio transmissions from a first device (100) to a second device (10) is determined. Further, an uncertainty of the determined signal quality is determined. Depending on the determined signal quality and uncertainty, a beamforming configuration, applied by the first device (100) for performing the radio transmissions to the second device (10), is adapted.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: May 5, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Sara Modarres Razavi, Mirsad Cirkic, Martin Hessler, Reza Moosavi, Henrik Rydén
  • Patent number: 10631213
    Abstract: A wireless device (16) is configured for use in a wireless communication system (10). The wireless device (16) in this regard is configured to obtain, for each of one or more cells, information derived from a measure of dispersion of the values of received signal measurements respectively performed by the wireless device (16) on different transmit beams of the cell. The wireless device (16) is also configured to use the obtained information to select, or to assist network equipment (500A, 500B) to select, from the one or more cells a target cell to which the wireless device (16) is to change. The wireless device (16) is further configured to perform a cell change to the selected target cell.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: April 21, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Henrik Rydén, Joel Berglund, Pradeepa Ramachandra
  • Publication number: 20200120479
    Abstract: Methods, network node (200) and wireless device (202) for supporting positioning of the wireless device in a wireless network. The network node requests (2:4) the wireless device to provide a positioning related report when a mobility criterion is fulfilled, which criterion may be selected (2:3) based on sensor capabilities of the device. The wireless device monitors (2:5) sensor measurements and evaluates the mobility criterion. When the mobility criterion is fulfilled the wireless device provides (2:6) the positioning related report to the network node which then obtains (2:7) the position or mobility status of the wireless device based on the positioning related report which may contain information related to said mobility status and/or sensor measurements made in the device.
    Type: Application
    Filed: February 24, 2019
    Publication date: April 16, 2020
    Inventors: Henrik Rydén, Fredrik Gunnarsson, Sara Modarres Razavi, Ritesh Shreevastav
  • Publication number: 20200120447
    Abstract: Embodiments herein relate to a method performed by a target device (10), for handling positioning of the target device. The target device determines one or more displacements of the target device (10) in relation to a reference position based on measurements performed by at least one location source. The target device (10) sends, to a network node (20), a report comprising the determined one or more displacements of the target device (10), and a reference time to which the reference position is associated. Embodiments herein further relate to a method performed by a network node (20), for handling positioning of the target device (10). The network node obtains, from the target device (10), a report comprising the determined one or more displacements of the target device (10) 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: February 7, 2019
    Publication date: April 16, 2020
    Inventors: Henrik Rydén, Fredrik Gunnarsson, Sara Modarres Razavi, Ritesh Shreevastav
  • Publication number: 20200084586
    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: Application
    Filed: May 4, 2018
    Publication date: March 12, 2020
    Inventors: Henrik Rydén, Åke Busin, Fredrik Gunnarsson, Sara Modarres Razavi