Patents by Inventor Rui Fan

Rui Fan 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).

  • Methods and arrangements for radio link measurement configuration
    Patent number: 11477671
    Abstract: The present disclosure relates to methods and arrangements for configuring radio link measurement reporting in a wireless communication system supporting a plurality of radio link reporting mechanisms. Performed in an access node, the method comprises obtaining (S21) a plurality of radio link reporting configurations, each radio link reporting configuration specifying one or more of the supported radio link reporting mechanisms and wherein at least one of the plurality of radio link reporting configurations specifies a combination of a first and a second radio link reporting mechanism being mutually different. The method further comprises selecting (S22) one radio link reporting configuration from the plurality of obtained configurations; and transmitting (S23) information about the selected radio link reporting configuration to a wireless device.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: October 18, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Icaro L. J. Da Silva, Rui Fan, Qingyu Miao, Andres Reial, Johan Rune, Zhang Zhang
  • Methods for measurement reporting, a user equipment and network nodes
    Patent number: 11477684
    Abstract: Embodiments of the present disclosure relate to methods and network nodes and user equipment for measurement reporting. In example embodiments, a method implemented in a user equipment is provided. According to the method, the user equipment detects a plurality of beams from one or more of the UE's neighboring nodes, forms one measurement result of a group based on beam grouping information, and then send measurement report to the UE's serving node, including the measurement result of the group is included in the measurement report. According to the present disclosure, more neighboring nodes can be reported by the UE in a measurement report.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: October 18, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Rui Fan, Shaohua Li, Andres Reial, Claes Tidestav
  • METHODS AND DEVICES FOR WIRELESS COMMUNICATION
    Publication number: 20220312229
    Abstract: The present disclosure provides a method (200) at a network device. The method (200) includes: obtaining (210) a probability distribution of a parameter that indicates received signal quality for terminal devices in a cell associated with the network device; and determining (220), based at least on the probability distribution, one or more thresholds of the parameter for classifying the terminal devices into CE levels.
    Type: Application
    Filed: June 17, 2019
    Publication date: September 29, 2022
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Rui FAN, Chi Chuen YUEN
  • Method and device for determining power control configuration
    Patent number: 11432244
    Abstract: A method and device for determining power control configuration. it is determined whether a first transmit power control configuration based on a first uplink transmission is outdated; and a second transmit power control configuration for a second uplink transmission is determined based on a power control scheme. Therefore, transmit power control efficiency of sparse data transmissions may be improved.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: August 30, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jinhua Liu, Rui Fan, Hai Wang
  • Network Node and Method Therein for Configuring PDCP for a Wireless Device
    Publication number: 20220272784
    Abstract: A wireless device is configured for wirelessly communicating with one or more types of Radio Access Networks (RANs) providing control-plane connectivity to one or both of a first type of core network and a second type of core network. The device configures a Packet Data Convergence Protocol (PDCP) at the device, e.g., at least for initial control-plane signaling, in dependence on whether the device is connected, or connecting, to the first type or the second type of core network. In at least one embodiment, the device configures PDCP for the second type of core network as a default choice, when control-plane connectivity to the second core network is available. In an example arrangement, the RAN types are LTE and 5G New Radio (NR), and the core network types are Evolved Packet Core (EPC) and 5G New Generation Core Network (NGCN).
    Type: Application
    Filed: May 10, 2022
    Publication date: August 25, 2022
    Inventors: Rui Fan, Gunnar Mildh
  • Method and device for random access for beam failure recovery
    Patent number: 11424810
    Abstract: A method for random access for beam failure recovery. In the method, a random access configuration for the beam failure recovery is received. In the event of a beam failure, a random access procedure is performed according to the random access configuration.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: August 23, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Rui Fan, Icaro L. J. Da Silva, Helka-Liina Määttanen
  • Radio link monitoring/radio link failure reconfiguration upon bandwidth parts switching
    Patent number: 11424878
    Abstract: A method in a user equipment (UE) is disclosed. The method comprises obtaining one or more radio link monitoring configurations, each radio link monitoring configuration associated with at least one bandwidth part. The method comprises determining that the UE is to switch from a source bandwidth part to a target bandwidth part. The method comprises performing radio link monitoring on the target bandwidth part according to an obtained radio link monitoring configuration associated with the target bandwidth part.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: August 23, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Icaro L. J. Da Silva, Helka-Liina Määttanen, Iana Siomina, Muhammad Kazmi, Rui Fan
  • Methods and nodes for communication on multiple channels
    Patent number: 11419097
    Abstract: The present disclosure proposes a method of a first node which is capable of using multiple wireless channels, wherein one or more of the channels are occupied by the first node for its current transmission to a second node, the method comprising: sending an indication to the second node, to indicate the second node to transmit towards the first node on the one or more occupied channels in the period between the current transmission and the continuing transmission of the first node; and listening on each of one or more other channels in the multiple wireless channels in the period for the continuing transmission. With this method, the power leakage from the occupied channel(s) will not impact the judgement of the listening of the first node on the other channel(s) in that period.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: August 16, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Gen Li, Jinhua Liu, Rui Fan
  • Methods and arrangements for measurement based mobility
    Patent number: 11419016
    Abstract: The present disclosure relates to methods and arrangements for performing wireless device assisted handover form a source access node to a target access node. Performed in a wireless device, the disclosure presents a method for performing wireless device assisted handover from a source access node to a target access node in a wireless network. The method comprises performing (S31) one or more mobility measurements for corresponding candidate radio links and selecting (S32), from the one or more candidate radio links, an initial target link based on the performed one or more mobility measurements. A first radio link measurement report, based on the one or more mobility measurements, identifying the initial target link, is transmitted (S33) to the source target node using a first radio link reporting mechanism whereupon communication over the initial target link is initiated (S34).
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: August 16, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Andres Reial, Rui Fan, Qingyu Miao, Edgar Ramos, Johan Rune, Claes Tidestav, Stefan Wager, Zhang Zhang
  • Methods and Network Nodes for Managing Transmission of at Least One Channel Quality Report
    Publication number: 20220256385
    Abstract: A radio network node (110) and a method therein for managing transmission of at least one channel quality report and a user equipment (120) a method therein for handling transmission of at least one channel quality report are disclosed. The radio network node (110) sends, to the user equipment (120), a first message comprising information about at least one resource for use by the user equipment (120) when transmitting the at least one channel quality report. The radio network node (110) sends, to the user equipment (120), a second message for activating, in the user equipment (120), the transmission of the at least one channel quality report. The radio network node (110) receives, from the user equipment (120), a first channel quality report of the at least one channel quality report. The first channel quality report is received on the at least one resource on an uplink control channel.
    Type: Application
    Filed: April 27, 2022
    Publication date: August 11, 2022
    Inventors: Qianxi Lu, Rui Fan
  • METHOD AND DEVICE FOR DETERMINING TIMER CONFIGURATION
    Publication number: 20220248496
    Abstract: Embodiments of the disclosure generally relate to determining configuration of a DRX timer. A wireless device determines a relationship between a DRX timer and different scheduling units and determines a time unit of the DRX timer based on the determined relationship. Then, the wireless device calculates a time interval indicated by the DRX timer based on the time unit.
    Type: Application
    Filed: February 11, 2022
    Publication date: August 4, 2022
    Inventors: Rui FAN, Jinhua LIU
  • ULTRASOUND IMAGING METHOD AND SYSTEM
    Publication number: 20220233173
    Abstract: The embodiments of the present disclosure disclose an ultrasound imaging method and system, the method may include transmitting a plurality of plane wave ultrasound beams to a scan target and acquiring corresponding plane wave echo signals; transmitting focused ultrasound beams to the scan target and acquiring corresponding focused beam echo signals; acquiring a plurality of velocity components of a target point in the scan target using the plane wave echo signals, and acquiring velocity vectors of the target point according to the plurality of velocity components; acquiring an ultrasound image of the scan target using the focused beam echo signals; and displaying the velocity vector and the ultrasound image.
    Type: Application
    Filed: March 1, 2022
    Publication date: July 28, 2022
    Inventors: Yigang DU, Rui FAN, Yong LI
  • Indication of subcarrier spacing numerology
    Patent number: 11398940
    Abstract: A host configured to operate in a communication system to provide an over-the-top (OTT) service is proposed. The host computer includes processing circuitry providing user data and a network interface initiating transmission of the user data to a network node in a cellular network for transmission to a user equipment (UE). The network node has a communication interface and processing circuitry, configured to perform operations including determining a signaling message that indicates a subcarrier spacing numerology for a synchronization signal transmission, transmitting the signaling message to the UE, and transmitting the user data to the UE. The signaling message includes a MeasObjectNR information element that indicates the subcarrier spacing numerology for the synchronization signal transmission.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: July 26, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Zhipeng Lin, Rui Fan
  • Methods and Devices for Frequency Band Sharing
    Publication number: 20220231827
    Abstract: The present disclosure provides a method (200) at a network device (120; 1210). The method (200) includes: determining (210) a first time period (325) corresponding to a subframe (320) in a frame (310) of a first radio access technology (RAT) and transmitting (220) a downlink system signal (340) of a second RAT in the first time period (325). The first RAT operates in time division duplex (TDD) mode and a first frequency band, and the second RAT operates in a second frequency band that at least partially overlaps with the first frequency band. The subframe (320) includes a guard period (GP) (330) used for switching between downlink and uplink in the frame (310) of the first RAT.
    Type: Application
    Filed: May 31, 2019
    Publication date: July 21, 2022
    Inventors: Rui Fan, Mattias Frenne, Robert Baldemair, Håkan B. Björkegren
  • 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
  • Method and Network Device for Link Adaptation
    Publication number: 20220191881
    Abstract: The present disclosure provides a method (100) in a network device for link adaptation. The method (100) includes: estimating (110) a probability distribution of downlink Signal to Interference plus Noise Ratio, SINR, for a terminal device based at least on one or more Acknowledgement, ACK, or Negative Acknowledgement, NACK, messages from the terminal device; and determining (120) a Modulation and Coding Scheme, MCS, for downlink transmission to the terminal device based on the estimated probability distribution of downlink SINR.
    Type: Application
    Filed: May 10, 2019
    Publication date: June 16, 2022
    Inventors: Rui Fan, Huaisong Zhu, Chi Chuen Yuen
  • Network node and method therein for configuring PDCP for a wireless device
    Patent number: 11363659
    Abstract: A wireless device is configured for wirelessly communicating with one or more types of Radio Access Networks (RANs) providing control-plane connectivity to one or both of a first type of core network and a second type of core network. The device configures a Packet Data Convergence Protocol (PDCP) at the device, e.g., at least for initial control-plane signaling, in dependence on whether the device is connected, or connecting, to the first type or the second type of core network. In at least one embodiment, the device configures PDCP for the second type of core network as a default choice, when control-plane connectivity to the second core network is available. In an example arrangement, the RAN types are LTE and 5G New Radio (NR), and the core network types are Evolved Packet Core (EPC) and 5G New Generation Core Network (NGCN).
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: June 14, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Rui Fan, Gunnar Mildh
  • NETWORK NODE AND METHOD FOR DYNAMIC SPECTRUM SHARING BETWEEN RADIO ACCESS TECHNOLOGIES
    Publication number: 20220182842
    Abstract: A method performed in a network node for configuring UE with dynamic spectrum sharing between a first RAT and a second RAT in a wireless communications system is disclosed. The network node configures an initial bandwidth part, BWP, for a UE, spanning across a dedicated spectrum for the first RAT and a shared spectrum between the first and second RATs, wherein synchronization signals of the first RAT are configured in the dedicated spectrum, and at least some other signals of the first RAT are configured in both dedicated and shared spectrum. The first RAT is NR and the second RAT is LTE.
    Type: Application
    Filed: March 10, 2020
    Publication date: June 9, 2022
    Inventors: Robert Baldemair, Håkan Björkegren, Rui Fan, Oskar Mauritz, Henning Wiemann
  • Methods and apparatuses for power control in a wireless communication system
    Patent number: 11356959
    Abstract: Methods, apparatus and computer program for power control. A method implemented in a terminal device comprises performing power control for at least a first type of traffic based on a first parameter configuration of a first power control loop; and performing power control for at least a second type of traffic based on a second parameter configuration of a second control loop, wherein the first parameter configuration of the first power control loop includes at least one parameter different from the second parameter configuration of the second power control loop.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: June 7, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jinhua Liu, Rui Fan, Hai Wang
  • Methods and devices for load balancing across band-width parts
    Patent number: 11337112
    Abstract: The present disclosure provides a method (200) in a terminal device for load balancing across Band-Width Parts, BWPs, in a carrier. The method (200) includes: determining (210) a set of random access capable BWPs in the carrier; and selecting (220) a camping BWP for the terminal device randomly from the set of random access capable BWPs.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: May 17, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Jinhua Liu, Rui Fan