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).

  • Patent number: 10383011
    Abstract: Small base station, micro, femto or pico BTS (PBS) are connected via Un interface to a donor eNB DeNB. In case of a handover from that PBS packets that had not been acknowledged by a UE need to be forwarded to the target base station. Forwarding them via Un and DeNB to the target eNB causes latency and wast radio resources on Un. Thus, the DeNB uses information about the handover to buffer packets and, after being informed by PBS, forward those packets that had not been acknowledged by the UE. This procedure, therefore, saves resources on Un interface and reduces latency. No forwarding of those packets from PBS to DeNB is required. There is provided a method for forwarding data to a wireless terminal. The method is performed by a proxy node. The method comprises receiving data on a link between a core network and a backhaul hub node. The data is addressed to a wireless terminal served by, or handed over from, a serving network node.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: August 13, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Joel Berglund, Erik Eriksson, Fredrik Gunnarsson, Martin Hessler, Pontus Wallentin
  • Patent number: 10367677
    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 13, 2016
    Date of Patent: July 30, 2019
    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, Rul Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskár, 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, Yanil Zheng
  • Patent number: 10362476
    Abstract: It is presented a method, performed in a network node, for sending system information. The method comprises the steps of: broadcasting, using at least one message, a system information table and a version indicator of the system information table, wherein each entry of the system information table comprises an entry identifier and a set of system access parameters, such that a radio node broadcasting an entry identifier is accessible through system access by a wireless terminal having access to the system information table; and broadcasting, a version message comprising the version indicator of the system information table, the version message omitting the system information table. A corresponding network node and wireless terminal are also presented.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: July 23, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Johan Rune, Pål Frenger, Fredrik Gunnarsson
  • Publication number: 20190215121
    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: Application
    Filed: September 29, 2017
    Publication date: July 11, 2019
    Inventors: Xingqin Lin, Johan Bergman, Fredrik Gunnarsson, Olof Liberg, Sara Modarres Razavi, Henrik Rydén, Yutao Sui, Yi-Pin Eric Wang
  • Patent number: 10349258
    Abstract: Identification of network nodes (110a-c) of a first Radio Access Technology, “RAT”, and of a wireless communication network (100), which network nodes (110a-c) are at least potentially neighboring each other. Multiple information sets associated with multiple communication devices (120a-c), respectively, are obtained (204a-b; 401). Each communication device (120a-c) supports both the first RAT and another, second RAT. Each information set, thus associated with a communication device (120a), identifies a network node (110a) of the first RAT, and one or more network nodes (111a) of the second RAT that have been identified by the communication device (120a) when the communication device (120a) was associated with a communicative connection to said identified network node (110a) of the first RAT. The network nodes (110a-b) of the first RAT that are at least potentially neighboring each other are then identified (205; 402) based on the obtained multiple information sets.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: July 9, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Pradeepa Ramachandra, Mehdi Amirijoo, Andreas Bergström, Fredrik Gunnarsson
  • Publication number: 20190208431
    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: Application
    Filed: September 13, 2016
    Publication date: July 4, 2019
    Inventors: Pradeepa RAMACHANDRA, Mehdi AMIRIJOO, Andreas BERGSTRÖM, Fredrik GUNNARSSON
  • Patent number: 10341807
    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: August 7, 2015
    Date of Patent: July 2, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Pål Frenger, Erik Eriksson, Fredrik Gunnarsson, Martin Hessler, Pradeepa Ramachandra
  • Publication number: 20190200250
    Abstract: Method performed by a wireless device (130) operating in a wireless communications network (100) wherein a plurality of beams (121) is transmitted by one or more network nodes (111, 113, 114) in the wireless communications network (100). The wireless device (130) generates (602) a log over a period of time. The log comprises: a) information about a first set of beams (122) in the plurality of beams (121) detected by the wireless device (130), and b) a time of detection. The log comprises the information and the time of detection for both of: i) a first set of time periods when the wireless device (130) was in a connected state in the wireless communications network (100), and ii) a second set of time periods when the wireless device (130) lacked a connection in the wireless communications network (100). The wireless device (130) sends (605) the generated log to a first network node (111).
    Type: Application
    Filed: December 22, 2017
    Publication date: June 27, 2019
    Inventors: Stefan Engström, Icaro L. J. da Silva, Fredrik Gunnarsson, Helka-Liina Määttanen, Pradeepa Ramachandra
  • Publication number: 20190182793
    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: Application
    Filed: August 1, 2016
    Publication date: June 13, 2019
    Inventors: Meng Wang, Fredrik GUNNARSSON, Henrik RYDÉN, Torbjörn WIGREN
  • Patent number: 10313952
    Abstract: The invention relates to methods and arrangements for handling handover-related parameters. A radio base station of a mobile communications network is arranged to serve at least a first cell, and to make handover decisions based on handover-related parameters. The radio base station comprises means for receiving handover related feedback from a radio base station serving a second cell after handover of a UE from said first cell to said second cell; means for using the handover related feedback received from the base station serving said second cell to adjust the handover-related parameters; and further by means for sending handover related feedback to a radio base station serving a second or another cell after handover of a UE to said first cell from said second or another cell.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: June 4, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Pål Frenger, Johan Moe, Fredrik Gunnarsson
  • Patent number: 10299178
    Abstract: A first base station provides radio communication service to user equipments, UEs, and a second base station that provides radio communication service to UEs in adjacent cell service area. The first base station receives cell range expansion, CRE, information from the second base station for expanding the size of the first cell and evaluates handover of one or more UEs with respect to the second cell based on the CRE information. In one embodiment, the second base station determines a CRE related configuration that includes the CRE information with respect to the first cell, sends the CRE information to the first base station. For example, the second base station may send a handover request including the CRE information to the first base station. The second base station also may consider CRE information in handover evaluation.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: May 21, 2019
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Fredrik Gunnarsson, Angelo Centonza, Mojgan Fadaki, Lars Lindbom
  • Publication number: 20190141659
    Abstract: A method performed by a User Equipment, UE, for handling Tracking Area, TA, information for the UE is provided. The UE operates in a wireless communications network. The UE obtains (401) a TA configuration comprising a list of allowed Tracking Area Codes, TACs, for the UE. The UE obtains (402) a first TAC and a first Tracking Area Part code, TAP. The first TAC relates to a TA. The TA comprises a number of TA parts, each TA part being associated with a TAP. The UE determines (403) a second TAC based on a combination the first TAC and the first TAP. When the second TAC is not in the list comprised in the TA configuration, the UE requests (404) updated TA information.
    Type: Application
    Filed: April 27, 2017
    Publication date: May 9, 2019
    Inventors: Pål Frenger, Fredrik Gunnarsson, Martin Hessler
  • Patent number: 10285077
    Abstract: A method for a device-to-device enabled cellular communication device arranged to operate with a cellular radio access network is disclosed. The method comprises determining a physical layer metric based on at least one potentially received signal from a controlling node of the cellular radio access network; determining based on the physical layer metric whether the cellular communication device is in coverage or out of coverage of the controlling node; and either, if the cellular communication device is determined to be in coverage of the controlling node, using device-to-device resources assigned from the controlling node, or, if the cellular communication device is determined to be out of coverage of the controlling node, using device-to-device resources which are preconfigured for out of coverage use. A communication device and a computer program are also disclosed.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: May 7, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Bengt Lindoff, Fredrik Gunnarsson, Stefano Sorrentino, Stefan Wänstedt
  • Patent number: 10278082
    Abstract: Network nodes (102, 104), control node (100) and methods therein, for enabling establishment of a neighbor relation between a first network node (102) and a second network node (104) in a wireless network. The control node (100) sends (1:1) or distributes, to network nodes in the network including the first network node (702), a set of reference signals reserved for neighbor relation establishment. The second network node (104) transmits (1:3) one of the reserved reference signals which is then detected by a wireless device (D1) being served by the first network node (102) which then receives (1:4), from the wireless device (D1), a measurement report indicating the detected reference signal that is recognized by the first network node (102) as belonging to the set of reserved reference signals.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: April 30, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Mehdi Amirijoo, Håkan Axelsson, Rasmus Axén, Fredrik Gunnarsson, Patrik Karlsson, Walter Müller, Christer Östberg, Pradeepa Ramachandra, Henrik Ronkainen, Thomas Walldeen
  • Publication number: 20190104431
    Abstract: A method performed by a wireless device for adapting measurement report resolution is disclosed. The method comprises performing a measurement, determining a measurement report resolution to be used, and sending a measurement report to the network node encoded based on the determined measurement report resolution. According to additional embodiments, prior to determining the measurement report resolution to be used, the wireless device informs the network node of the wireless device's capabilities of sending measurement reports encoded based on a plurality of different measurement report resolutions. According to additional embodiments, subsequent to informing the network node of the wireless device's capabilities, and prior to determining the measurement report resolution to be used, the wireless device receives a desired measurement report resolution from the network node.
    Type: Application
    Filed: September 23, 2016
    Publication date: April 4, 2019
    Inventors: Fredrik Gunnarsson, Yufei Blankenship, Sara Modarres Razavi, Henrik Rydén, Iana Siomina, Kai-Erik Sunell, Riikka Susitaival, Meng Wang, Ali Zaidi
  • Patent number: 10243764
    Abstract: A method of and device for generation and transmission of a first data message over a wireless channel and for a device-to-device enabled cellular communication device arranged to operate with a cellular radio access network. A transmitter identification, ID, of the cellular communication device in the first data message is included The entire first data message, including at least data associated with the transmitter ID is scrambled with a scrambling sequence associated with a synchronization source identity. The first data message is transmitted over the wireless channel. A corresponding method of and device for receiving and decoding one or more data messages over a wireless channel and for a device-to-device enabled cellular communication device arranged to operate with a cellular radio access network. A first synchronization source identity is determined. A received first data message with a scrambling sequence associated with the first synchronization source identity is descrambled.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: March 26, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Bengt Lindoff, Fredrik Gunnarsson, Stefano Sorrentino
  • Publication number: 20190089405
    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: Application
    Filed: March 30, 2016
    Publication date: March 21, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Henrik Rydén, Fredrik Gunnarsson, Sara Modarres Razavi, Ali Zaidi
  • Publication number: 20190075430
    Abstract: A method performed by a first transceiver device in D2D communication with second transceiver devices in a cellular network comprises transmitting a reference signal comprising an identity of the first transceiver device, and receiving feedback messages from the second transceiver devices, where a feedback message comprises the identity of the first and an identity of the second transceiver device, and channel characteristics of a radio channel between the first and the second transceiver device, where the channel characteristics are estimated by the second transceiver device. The method further comprises deciding, based on the feedback messages, whether a second transceiver device should be included in a set of intended devices to which the first transceiver device will perform a transmission of a communication signal.
    Type: Application
    Filed: March 1, 2017
    Publication date: March 7, 2019
    Inventors: Bo LINCOLN, Hakan BJORKEGREN, Gabor FODOR, Fredrik GUNNARSSON, Jonas KRONANDER, Anders WALLEN
  • Patent number: 10225756
    Abstract: A technique for reporting events from a mobile device to a cellular network (100) is provided. The mobile device is wirelessly connectable to the cellular network (100). As to a method aspect of the technique, records of the events are stored while the mobile device is out of network coverage. The stored records are reported to the cellular network (100) when the mobile device is wirelessly connected to the cellular network (100).
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: March 5, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Norbert Reider, Fredrik Gunnarsson, Bo Hagerman, Sara Landström, Bengt Lindoff, Robert Petersen, András Rácz, Arne Simonsson
  • Publication number: 20190068315
    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: Application
    Filed: April 20, 2016
    Publication date: February 28, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Henrik Rydén, Fredrik Gunnarsson, Sara Modarres Razavi, Ali Zaidi, Meng Wang