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: 9743327
    Abstract: Method in and network node (700; 140a, 111a, 131a, 110a-c, 130a-c) of a wireless communications system (100a-c), for managing radio traffic load in a first cell (115a-c). The first cell (115a-c) is served by a first base station (110a-c) and is at least partly is covered by a second cell (135a-c) served by the first base station (110b) or a second base station (130a,c). Information is obtained (201, 601) about a future load of radio traffic in the first cell (115a-c). The future load is associated with a first group of wireless devices (120a-d) and generation of the future load is in response to an occurrence of a future event. It is then provided (202, 602), based on the obtained information, a change of serving cell so that at least one wireless device (121a) of a second group of one or more wireless devices (121a-b) being served in the first cell (115a-c) by the first base station (110a-c), instead become served in the second cell (135a-c).
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: August 22, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Yu Wang, Konstantinos Dimou, Fredrik Gunnarsson
  • Patent number: 9743306
    Abstract: The invention relates to a method for performance reporting in a wireless network, wherein at least one terminal is associated to a terminal report server by means of information in the terminal. Prior to initiating the performance report, information on operator identity is retrieved. The operator identity is combined with information identifying the associated terminal report server to compile a fully qualified domain name. Connectivity information to the terminal server report is requested and received from a domain name server, whereupon a performance report session to the terminal report server is initiated using the received connectivity information. The invention also relates to a terminal wherein the inventive method is applied.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: August 22, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Fredrik Gunnarsson, Gunnar Heikkilä, David Lindegren, Johan Moe, Andras Valkó, András Veres
  • Patent number: 9743274
    Abstract: A method implemented in a user equipment (UE) includes obtaining an indication for changing a first source address to a second source address, where the first source address is used in a device to device communication session. The method further includes obtaining the second source address. The method further includes generating a message including the second source address. The method also includes transmitting the generated message using the first source address.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: August 22, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fredrik Gunnarsson, Bengt Lindoff, Pontus Wallentin
  • Publication number: 20170215118
    Abstract: A method in a radio network node for determining whether a wireless device is a suitable candidate for handover to a target cell for load balancing reasons. The radio network node serves a source cell. The method includes determining a first level of coverage of the target cell based on a first measurement report. The method further includes storing measurement data obtained from a second measurement, being at least one of a layer 2 and a layer 1 measurement. The method further includes establishing a correlation between the determined first level of coverage and the stored measurement data and updating statistical data based on the established correlation. The method further includes determining whether the wireless device is a suitable candidate for handover to the target cell for load balancing reasons, based on the updated statistical data.
    Type: Application
    Filed: August 8, 2014
    Publication date: July 27, 2017
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Håkan AXELSSON, Samuel AXELSSON, Fredrik GUNNARSSON, Stefan JOHANSSON, Parisa PAKNIAT
  • Patent number: 9706526
    Abstract: Methods and nodes in a cellular communication system for supporting Random Access. A method in a first network node involves determining at least one uplink radio resource amongst a plurality of radio resources, and refraining from scheduling uplink communication in the at least one uplink radio resource, thus enabling a UE in an area with an uplink/downlink imbalance to perform Random Access to a neighbor second network node (B).
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: July 11, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Fredrik Gunnarsson, Mehdi Amirijoo, Bo Hagerman, Stefan Wager
  • Patent number: 9693262
    Abstract: There is provided load sharing performed by a first processing unit device and a second processing unit device. The load sharing is achieved by the first processing unit device determining a distinct subset of user equipment, UE, from a set of UEs, where the UEs of the distinct subset of UEs are candidates for load sharing. Information identifying the UEs in the distinct subset and information of load of a first cell in which the distinct subset of UEs are served and information of load of a second cell being a candidate cell for serving the distinct subset of UEs is transmitted to the second processing unit device. Based on evaluating the information received from the first processing unit device the second processing unit device determines a load sharing action for use by the first processing unit device.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: June 27, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Fredrik Gunnarsson, Andreas Bergström, Jonas Fröberg Olsson
  • Patent number: 9686651
    Abstract: It is presented a method for assisting the determining of a position of a wireless device, the method being performed in a network node connected to a plurality of remote radio head devices via a combiner. The method comprises the steps of: receiving an uplink signal via the combiner; comparing a carrier frequency of the uplink signal with a set of manipulation schemes for a carrier frequency of uplink signals, wherein the manipulation schemes are different for at least some of the plurality of remote radio head devices; and providing a proximity indication that the position of the wireless device is in the vicinity of a remote radio head device the frequency manipulation scheme of which best matches the uplink signal. A corresponding network node, computer program, and computer program product are also presented.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: June 20, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Elmar Trojer, Miguel Berg, Per-Erik Eriksson, Fredrik Gunnarsson, Chenguang Lu, Jacob Osterling
  • Publication number: 20170171835
    Abstract: A method performed by a network node is provided. The network node and a user equipment, UE, operate in a communications network. The network node configures (302) the UE to report information indicating whether the UE is located indoors or outdoors. After receiving (303) a message from the UE which message comprises the information indicating whether the UE is located indoors or outdoors, the network node decides (304) whether the UE is located indoors or outdoors based on the received indication. The deciding enables the network node to provide network support in the communications network based on whether the UE is located indoors or outdoors.
    Type: Application
    Filed: October 14, 2015
    Publication date: June 15, 2017
    Inventors: Peter Ökvist, Jonas Fröberg Olsson, Fredrik Gunnarsson, Tomas Jönsson
  • Patent number: 9681331
    Abstract: This disclosure presents a method and apparatus for mitigating interference arising from Device-to-Device, D2D, communications, in cases where the frequency band used for D2D transmissions is adjacent to an active cellular carrier or other frequency band carrying critical communications. Among the several mitigation techniques disclosed herein, a wireless device may reduce possible out-of-band interference arising from its D2D transmissions by adjusting transmit power and/or time/frequency resource allocations when it is determined that there is an interference risk. Such mitigations provide improved performance for the D2D transmissions and for the communications in the critical frequency band.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: June 13, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Bengt Lindoff, Fredrik Gunnarsson, Stefano Sorrentino
  • Patent number: 9674740
    Abstract: Cooperating nodes, and methods therein, for mobility procedures in a wireless communication system supporting UE groups. One of the cooperating nodes is a base station being associated with a UE group comprising UEs having correlated mobility related parameters. The method in the base station comprises receiving, from a first UE in the UE group, a mobility related parameter associated with the first UE. The method further comprises determining whether to initiate a mobility related procedure for a second UE in the UE group based on the received mobility related parameter; and further comprises initiating the mobility related procedure for the second UE when it is determined that the mobility related procedure is to be performed. Thereby, prediction and decisions related to mobility events, e.g. handover events, for the second UE or for the whole group may be performed e.g.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: June 6, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gino Luca Masini, Angelo Centonza, Mojgan Fadaki, Fredrik Gunnarsson, Gunnar Mildh, Oumer Teyeb, Stefan Wager
  • Patent number: 9668187
    Abstract: Network node (120) and method (300) in a network node (120), which is serving a user equipment (110), for instructing the user equipment (110) to send a measurement report in a wireless communication network (100) comprising the network node (120) and an underlay network node (130). The method (300) comprises estimating (302) an amount of data the user equipment (110) is expected to communicate. Further, the method (300) also comprises determining (303) the user equipment (110) to be a candidate for hand over to the underlay network node (130), based on the estimated (302) amount of data. Additionally, the method (300) comprises instructing (305) the user equipment (110) to send a measurement report.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: May 30, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Fredrik Gunnarsson, Mats Folke, Walter Müller
  • Publication number: 20170150436
    Abstract: There is provided mechanisms for positioning of a wireless communications device in a wireless communications network, where the wireless communications network comprises a serving cell and neighbour cells. A method performed by the wireless communications device comprises obtaining information related to a cell selection process for selecting a cell to be used for computing a position of the wireless communications device. The method comprises measuring a measure of a signal associated with the cell to be selected. The method comprises selecting the cell to be used for computing the position of the wireless communications device based on the information related to the cell selection process. The method comprises computing a difference of the measures based on the selected cell.
    Type: Application
    Filed: May 9, 2016
    Publication date: May 25, 2017
    Inventors: Sara Modarres Razavi, Yufei Blankenship, Fredrik Gunnarsson, Henrik Rydén, Meng Wang, Ali Zaidi
  • Publication number: 20170142682
    Abstract: There is provided mechanisms for providing location information in a communications network. A method is performed by a first device. The first device supports positioning of other devices in the communications network. The method comprises acquiring positioning reference signal configuration from a radio network node in the communications network. The method comprises acquiring location information from a local positioning entity. The method comprises providing the location information to at least one of a radio network node and a second device in the communications network. The method comprises transmitting a positioning reference signal according to the positioning reference signal configuration.
    Type: Application
    Filed: July 8, 2015
    Publication date: May 18, 2017
    Inventors: Fredrik Gunnarsson, Erik Eriksson, Pål Frenger, Martin Hessler, Pradeepa Ramachandra
  • Publication number: 20170105136
    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: Application
    Filed: April 7, 2015
    Publication date: April 13, 2017
    Inventors: Norbert Reider, Fredrik Gunnarsson, Bo Hagerman, Sara Landström, Bengt Lindoff, Robert Petersen, András Rácz, Arne Simonsson
  • Patent number: 9614652
    Abstract: Embodiments herein relate to a system for enabling communication in the radio communications network (1). The system comprises the first radio base station (12), the second radio base station (13) and the wireless terminal (10). The first radio base station (12) and the second radio base station (13) are configured to serve the wireless terminal (10) simultaneously. The first radio base station (12) is configured to set up to the wireless terminal (10), a first channel for receiving data over from the wireless terminal (10), and a first assisting channel for transmitting feedback data regarding transmissions over the first channel. The second radio base station (13) is configured to set up to the wireless terminal (10), a second channel for transmitting data over to the wireless terminal (10), and a second assisting channel for receiving, from the wireless terminal (10), feedback data regarding transmissions over the second channel.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: April 4, 2017
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Stefan Wager, Fredrik Gunnarsson, Niklas Johansson, Magnus Stattin, Riikka Susitaival, Vesa Virkki
  • Patent number: 9609570
    Abstract: A method in a network node for allocating to user equipments a respective carrier is provided. The carrier is a frequency carrier for wireless communication. The network node is comprised in a cellular network. The network node identifies (202) a set of carriers. The carriers in the set of carriers each are associated with a respective geographic handover region for handover between cells. The geographic handover regions of the carriers differ from each other more than a threshold. When the network node has identified (203) a group of user group of user equipments with correlated mobility pattern, it allocates (204) to at least two of the user equipments within the group of user equipments a respective carrier. The allocation is performed such that the at least two user equipments in the group are spread among the carriers in the set of carriers.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: March 28, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Joachim Sachs, Fredrik Gunnarsson, Reihaneh Malekafzaliardakani, Yngve Selèn, Leif Wilhelmsson
  • Publication number: 20170071003
    Abstract: A method of a network node of a cellular communication network is disclosed. The method comprises determining transmission behaviour of stations associated with the network node. The method includes, for at least one of the stations associated with the network node, determining whether the transmission behaviour of the station indicates intermittent transmission activity of the station, and if the intermittent transmission activity indicated by the transmission behaviour of the station is in a first state being an intermittent activity state, applying an action plan for that station such that radio resource consumption by that station is reduced. A network node and a computer program are also disclosed.
    Type: Application
    Filed: February 11, 2015
    Publication date: March 9, 2017
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Bengt LINDOFF, Fredrik GUNNARSSON, Bo HAGERMAN
  • Publication number: 20170064573
    Abstract: A method in a radio network node is disclosed for handling positioning data in a radio communications network, which radio network node serves a user equipment in a cell. The radio network node obtains positioning data from the user equipment, which positioning data is associated with a positioning measurement for positioning the user equipment. The radio network node associates the obtained positioning data with an on-going trace session of the user equipment. The radio network node then sends a trace record to a network management node, which trace record includes information associated with the positioning data.
    Type: Application
    Filed: November 10, 2016
    Publication date: March 2, 2017
    Inventors: András RÁCZ, Mehdi AMIRIJOO, Fredrik GUNNARSSON, Johan MOE
  • Publication number: 20170019827
    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: Application
    Filed: September 30, 2016
    Publication date: January 19, 2017
    Inventors: Pål Frenger, Johan Moe, Fredrik Gunnarsson
  • Publication number: 20170013537
    Abstract: The present disclosure relates to a base station in a cellular communication network and methods of operation thereof. In one embodiment, a base station determines that the base station is transitioning to an unavailable state. The base station then notifies one or more radio network nodes with which the base station conducts base-station-to-node communication that the base station is unavailable. Thereafter, in one embodiment, the one or more radio network nodes cease communication attempts with the base station. In this manner, the radio network nodes can avoid spending additional resources on attempts to re-establish communication connections to base stations that tend to be offline more often (e.g., low-power base stations (LP-BSs)).
    Type: Application
    Filed: September 19, 2016
    Publication date: January 12, 2017
    Inventors: Fredrik Gunnarsson, Stefan Engström, Gino Luca Masini, Karl Norrman