Patents by Inventor Joel Berglund

Joel Berglund 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: 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: 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
  • Patent number: 10659133
    Abstract: A method for operating a transmitting node of a wireless communication network. The transmitting node includes or is connected to an antenna array having multiple antenna elements. A signal indication indicating a first and/or reference signaling is obtained. The first reference signaling includes transmission on a first plurality of disjunct frequency bands, and the second reference signaling includes transmission on a second plurality of disjunct frequency bands. The first reference signaling and the second reference signaling are transmitted based on a signal map of the first and the second reference signaling to antenna elements of the antenna array.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: May 19, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Mirsad Cirkic, Joel Berglund, Erik Eriksson
  • 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
  • Patent number: 10623072
    Abstract: There is disclosed a method for operating a network node in a wireless communication network. The method comprises obtaining a first precoder and/or first beam pattern indication, and a second precoder and/or second beam pattern indication, the first precoder and/or first beam pattern indication being associated to beamformed transmission of first signaling utilizing a first antenna subarray, and the second precoder and/or second beam pattern indication being associated to beamformed transmission of second signaling utilizing a second antenna subarray. A first phase center is associated to the first signaling and a second phase center is associated to the second signaling, the first phase center and the second phase center having a phase center difference. The method further comprises transmitting the first signaling on a first expanded antenna subarray utilising a first expanded precoder, and transmitting the second signaling on a second expanded antenna subarray utilising a second expanded precoder.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: April 14, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Mirsad Cirkic, Joel Berglund, Erik Eriksson, Sven Petersson
  • Patent number: 10560163
    Abstract: There is provided a method and corresponding apparatus for determining a beamforming configuration for a multi-antenna system according to an embodiment. In general, the multi-antenna system has at least two antennas and a port-to-antenna mapping between antenna ports and antennas. The method comprises obtaining (S1) first feedback information originating from a wireless device relating to a multi-antenna transmission based on a first beamforming configuration including a first port-to-antenna mapping, and obtaining (S2) second feedback information originating from the wireless device relating to a multi-antenna transmission based on a second, different beamforming configuration including a second, different port to-antenna mapping. The method also comprises determining (S3), based on the first feedback information and the second feedback information, a third beamforming configuration for the multi-antenna system including a third port-to-antenna mapping to enable beamforming according to a third beam form.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: February 11, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Joel Berglund, Mirsad Cirkic, Erik Eriksson
  • Patent number: 10530649
    Abstract: There is provided a method for signaling an event associated with a wireless terminal in a communications network. The method is performed by an information providing node. The method comprises detecting an event associated with a wireless terminal, the event causing a change of operation in at least a client node or a hub node in a wireless backhaul network. The method comprises transmitting a message indicative of the event towards an information receiving node.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: January 7, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Joel Berglund, Pål Frenger, Martin Hessler
  • Patent number: 10517122
    Abstract: A radio network node (110) manages (A010) establishment of a current radio session between a user equipment (120) and the radio network node (110), wherein the current radio session is associated with a current set of characteristics relating to the radio network node (110) and/or the user equipment (120). During establishment of the current radio session, a core network node (130) retrieves (A080), based on the current set of characteristics, an indication about the MCS offset from a memory (141, 142) accessible by the core network node (130). Then, the core network node (130) sends (A090), to the radio network node (110), the indication about the MCS offset. The indication is derived from a previous radio session, wherein the previous radio session is associated with a previous set of the characteristics, wherein the previous set of the characteristics matches the current set of the characteristics.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: December 24, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Fredrik Gunnarsson, Joel Berglund, Mirsad Cirkic, Henrik Rydén
  • Patent number: 10517030
    Abstract: One aspect of the teachings herein involves the temporary transfer of radio identities from one service area of a wireless communication network to another service area, where the individual radio identities are used to differentiate individual radio connections between the network and respective wireless nodes supported by the network. In particular, the temporary transfer of a given radio identity from its default service area for use in another service is limited temporally and/or geographically. Limiting the temporal and/or geographic scope of the radio identity transfer allows the network to substantially maintain default associations of radio identities and their respective service areas, which allows the network to prevent or reduce the use of conflicting radio identities in the same service area. Transfer signaling may be used to transfer radio identities. Such signaling may include the temporal and/or geographic restrictions, to control the migration or spread of borrowed identities in the network.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: December 24, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Erik Eriksson, Joel Berglund, Pål Frenger, Martin Hessler
  • Publication number: 20190364591
    Abstract: A technique for reporting channel state information, CSI, from a wireless device to a radio node is described. The wireless device is wirelessly connected or connectable to the radio node. Different CSI configurations associated with different CSI states (502, 504) are stored at the wireless device. The CSI configurations comprise at least one transition criterion for a state transition (506; 508) between the CSI states (502, 504). As to a method aspect of the technique, the wireless device determines the state transition (506; 508) to a CSI state (502; 504) among the CSI states if the corresponding transition criterion is fulfilled and reports the CSI according to the CSI configuration that is associated with the CSI state (502; 504) resulting from the determination.
    Type: Application
    Filed: December 20, 2017
    Publication date: November 28, 2019
    Inventors: Joel Berglund, Mirsad Cirkic, Jonas Fröberg Olsson
  • Publication number: 20190357057
    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: Application
    Filed: March 21, 2016
    Publication date: November 21, 2019
    Inventors: Mirsad CIRKIC, Samuel AXELSSON, Joel BERGLUND, Fredrik GUNNARSSON, Pradeepa RAMACHANDRA, Henrik RYDÉN
  • Patent number: 10484247
    Abstract: The setting of a value of the transmission control parameter for a transmission of data on a multi-hop relay radio link of a cellular network is controlled. Said controlling is based on a route time of a packet transmitted between end nodes of the multi-hop relay radio link. E.g., the transmission control parameter may relate to a property of an Automatic Repeat Request protocol.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: November 19, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Andreas Bergström, Joel Berglund, Rui Fan, Martin Hessler
  • Patent number: 10425874
    Abstract: Radio link failures, “RLF”, of a wireless device served by a wireless communication network are managed. A first, default, RLF procedure is associated with at least a first type of wireless devices supported by the wireless communication network. The wireless device obtains, e.g. received from a network node information indicative of a second RLF procedure based on that the wireless device is of a second type having an improved radio coverage capability compared to the first type. The wireless device applies, based on the obtained information, said second RLF procedure.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: September 24, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Erik Eriksson, Pradeepa Ramachandra, Reza Moosavi, Joel Berglund, Mirsad Cirkic
  • Publication number: 20190280748
    Abstract: There is disclosed a method for operating a network node in a wireless communication network. The method comprises obtaining a first precoder and/or first beam pattern indication, and a second precoder and/or second beam pattern indication, the first precoder and/or first beam pattern indication being associated to beamformed transmission of first signaling utilizing a first antenna subarray, and the second precoder and/or second beam pattern indication being associated to beamformed transmission of second signaling utilizing a second antenna subarray. A first phase center is associated to the first signaling and a second phase center is associated to the second signaling, the first phase center and the second phase center having a phase center difference. The method further comprises transmitting the first signaling on a first expanded antenna subarray utilising a first expanded precoder, and transmitting the second signaling on a second expanded antenna subarray utilising a second expanded precoder.
    Type: Application
    Filed: May 20, 2016
    Publication date: September 12, 2019
    Inventors: Mirsad Cirkic, Joel Berglund, Erik Eriksson, Sven Petersson
  • 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: 10375694
    Abstract: A method performed by a network node for determining a beam to direct a signal to be transmitted from the network node to a user equipment in a wireless communications network. The network node obtains (302) information related to a sequence of beams associated with the user equipment. The network node further determines (304) the beam based on the information related to the sequence of beams.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: August 6, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Joel Berglund, Mirsad Cirkic, Erik Eriksson, Reza Moosavi, Pradeepa Ramachandra
  • Publication number: 20190215746
    Abstract: A processing unit (104) and a method therein for initiating activation of a target cell. A communications device (106) is operating in a first cell (108a) of a wireless communications network (100). The processing unit is configured to obtain an estimate of a radio condition of the communications device in a target cell (108b) comprised in the wireless communications network. Further, the processing unit is configured to determine, based on the estimate of the radio condition, an energy saving obtained if offloading the communications device from the first cell to the target cell. Furthermore, the processing unit is configured to initiate activation of the target cell in dependence on the determined energy saving and on an activation decision.
    Type: Application
    Filed: August 22, 2016
    Publication date: July 11, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mirsad CIRKIC, Joel BERGLUND, Stefan ENGSTROM, Henrik RYDÉN
  • Publication number: 20190215047
    Abstract: A method for operating a transmitting node of a wireless communication network. The transmitting node includes or is connected to an antenna array having multiple antenna elements. A signal indication indicating a first and/or reference signaling is obtained. The first reference signaling includes transmission on a first plurality of disjunct frequency bands, and the second reference signaling includes transmission on a second plurality of disjunct frequency bands. The first reference signaling and the second reference signaling are transmitted based on a signal map of the first and the second reference signaling to antenna elements of the antenna array.
    Type: Application
    Filed: May 20, 2016
    Publication date: July 11, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mirsad CIRKIC, Joel BERGLUND, Erik ERIKSSON
  • Patent number: 10165570
    Abstract: There is provided mechanisms for adaptive beamforming. A method is performed by a first network device. The method comprises acquiring beamforming information indicating spatial directions in which an identification signal is to be transmitted. The method comprises transmitting the identification signal in a transmission pattern using directional beams in the spatial directions towards second network devices. The identification signal is transmitted such that the identification signal occupies a larger portion of communications resources when transmitted in spatial directions with high second network device presence than in spatial directions with low second network device presence.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: December 25, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Henrik Sahlin, Mona Hashemi, Mirsad Cirkic, Joel Berglund
  • Publication number: 20180324661
    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: Application
    Filed: May 4, 2017
    Publication date: November 8, 2018
    Inventors: Henrik Rydén, Joel Berglund, Pradeepa Ramachandra