Patents by Inventor Johan Lundsjo

Johan Lundsjo 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).

  • Industrial Automation with 5G and Beyond
    Publication number: 20200259896
    Abstract: Techniques for enhancing performance in Industrial Internet-of-Things (IIoT) scenarios, including techniques for time-sensitive networking (TSN) and 5G wireless network integration. An example method, performed by a wireless device, comprises receiving system information (SI) from a radio base station (RBS) of a radio access network (RAN), the SI being indicative of support for TSN through the RBS, and establishing at least one TSN stream with an external data network, through the RBS. The example method further includes receiving a first timing signal from the wireless communications network, via the RBS, receiving a second timing signal from the external TSN data network to which the wireless device is connected, comparing the first timing signal to the second timing signal to determine an offset, and transmitting the offset to the wireless communications network.
    Type: Application
    Filed: February 13, 2019
    Publication date: August 13, 2020
    Inventors: Joachim Sachs, Abdulrahman Alabbasi, Mattias Andersson, Niklas Andgart, Ola Angelsmark, José Araújo, Muhammad Ikram Ashraf, Kumar Balachandran, Robert Baldemair, Rodrigo Berg, Yufei Blankenship, Fedor Chernogorov, John Walter Diachina, Torsten Dudda, Henrik Enbuske, Sorour Falahati, János Farkas, Jonas Fröberg Olsson, Majid Gerami, Harald Gustafsson, Kimmo Hiltunen, Andreas Höglund, Torgny Holmberg, Zsolt Kenesi, András Kern, Kittipong Kittichokechai, Anna Larmo, Johan Lundsjö, György Miklós, Hubertus Munz, Gabor Nemeth, Johannes Nygren, Johan Olsson, Alexandros Palaios, Dhruvin Patel, Joakim Persson, Per Persson, Jose Luis Pradas, Sándor Rácz, Pradeepa Ramachandra, Norbert Reider, Dinand Roeland, Stefano Ruffini, Patrik Salmela, Sara Sandberg, Magnus Sandgren, Paul Schliwa-Bertling, Alexey Shapin, Nianshan Shi, Bikramjit Singh, Per Skarin, Bernard Smeets, Ying Sun, Dennis Sundman, Fredrik Svensson, Malgorzata Svensson, Geza Szabo, Wolfgang Tonutti, Balázs Varga, Mårten Wahlström, Kun Wang, Yi-Pin Eric Wang, Osman Nuri Can Yilmaz, Zhenhua Zou, Miguel Lopez
  • Self backhauling in LTE
    Patent number: 9769797
    Abstract: A system includes a self-backhauled eNodeB which communicates via a radio interface with an anchor eNodeB, where the self-backhauled eNodeB is made reachable in an operator's network via a serving gateway and where the serving gateway of the self-backhauled eNodeB owns an IP address associated with the self-backhauled eNodeB. The system receives a packet destined for the self-backhauled eNodeB and classifies the packet to a bearer associated with a self-backhauled link to the self-backhauled eNodeB.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: September 19, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Niklas Johansson, Johan Lundsjö, Gunnar Mildh, Andràs Ràcz, Christian Hoymann
  • Method and arrangement for route cost determination and selection with link cost interaction
    Patent number: 9674073
    Abstract: This invention extends routing mechanisms that use link metrics for route selection so that: A link metric cross correlation vector is determined for all links, where each element in the vector corresponds to some other link, and reflects the change in the link metric value if a data flow would already use this other link. The invention further describes a specific embodiment where all cross-correlating links are adjacent to each other, i.e., they terminate or originate in a common node. A mechanism is described to create an extended routing graph. This extended graph permits the use of standard polynomial time algorithms that simultaneously construct the optimal route and find the optimal route metric (such as shortest-path algorithms) also for the adjacent link cross-correlating case.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: June 6, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Mikael Prytz, Joachim Sachs, Per Magnusson, Johan Lundsjö, Peter Larsson
  • Self Backhauling in LTE
    Publication number: 20160057734
    Abstract: A system includes a self-backhauled eNodeB which communicates via a radio interface with an anchor eNodeB, where the self-backhauled eNodeB is made reachable in an operator's network via a serving gateway and where the serving gateway of the self-backhauled eNodeB owns an IP address associated with the self-backhauled eNodeB. The system receives a packet destined for the self-backhauled eNodeB and classifies the packet to a bearer associated with a self-backhauled link to the self-backhauled eNodeB.
    Type: Application
    Filed: July 31, 2014
    Publication date: February 25, 2016
    Inventors: Niklas Johansson, Johan Lundsjö, Gunnar Mildh, Andràs Ràcz, Christian Hoymann
  • Access node selection in a network
    Patent number: 8938525
    Abstract: The invention is directed towards determining an access node (14, 16) for a terminal (18) in a network (10) having one or more access nodes capable of providing access to the terminal based on one or more access technologies. Access node is selected through determining whether at least one network parameter provided by a network node (12, 14, 16) is required as input for the access node selection for the terminal. If it is determined that the at least one network parameter is required as input, the network parameter is obtained and an access node possibly together with access type for the terminal is selected at least based on said network parameter.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: January 20, 2015
    Assignee: Optis Cellular Technology, LLC
    Inventors: Per Magnusson, Johan Lundsjö, Mikael Prytz, Joachim Sachs
  • Methods and arrangements for direct mode communication
    Patent number: 8934892
    Abstract: A method in a first user equipment (UE 1) connectable to a second user equipment (UE 2) via a communication network or via a direct radio communication link, of using a direct radio communication link for communication between the UEs is initiated when one of the UEs receives probe signaling information comprising a first probe token via the communication network. The UEs exchange probe signaling messages including a second and/or the first probe token at least partly according to the probe signaling information, such that one of the UEs can compare the probe tokens, generate a probing report and provide the probing report to the communication network, or to the opposite UE for evaluation in case of a successful comparison and such that a direct radio communication link can be used for communication with UE 2 in response to receiving instructions to use the second direct radio communication link from the entity by which the probing report was evaluated.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: January 13, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Göran Selander, Konstantinos Dimou, Johan Lundsjö, Micael Martell, Gunnar Mildh, Mats Näslund
  • Communication system and method for accessing a network by a group of first access paths and a group of second access paths
    Patent number: 8891510
    Abstract: A communication system is provided which is arranged for accessing a network by a group of first access paths and a group of second access paths. The first and second access paths have a different access technology. An access path monitor is provided for obtaining status information related to the access paths in accordance with the monitoring procedure. An access controller is provided for selecting an access path for a communication session in accordance with a selection procedure and in dependence on the status information. A modifier is provided for modifying one or both of the monitoring procedure and the selection procedure in accordance with a modification procedure and in dependence on decision information.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: November 18, 2014
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Joachim Sachs, Per Olof Magnus Magnusson, Mikael Prytz, Johan Lundsjo
  • Self-backhauling in LTE
    Patent number: 8797952
    Abstract: A method implemented in an anchor base station configured performing a proxy operation at an anchor base station in which the anchor base station acts as a proxy between a second S-GW or an MME node and a self-backhauled base station. The method includes receiving a data packet destined for the user equipment and mapping the received data packet from an incoming General Packet Radio Service (GPRS) Tunneling Protocol (GTP) tunnel to an outgoing GTP tunnel. The method also includes receiving a control message and modifying elements of the control message while copying other elements in the control message and forwarding the control message between the self-backhauled base station and the second S-GW or MME node.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: August 5, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Niklas Johansson, Johan Lundsjö, Gunnar Mildh, András Ràcz, Christian Hoymann
  • Methods and Arrangements for Direct Mode Communication
    Publication number: 20130084854
    Abstract: A method in a first user equipment (UE 1) connectable to a second user equipment (UE 2) via a communication network or via a direct radio communication link, of using a direct radio communication link for communication between the UEs is initiated when one of the UEs receives probe signaling information comprising a first probe token via the communication network. The UEs exchange probe signaling messages including a second and/or the first probe token at least partly according to the probe signaling information, such that one of the UEs can compare the probe tokens, generate a probing report and provide the probing report to the communication network, or to the opposite UE for evaluation in case of a successful comparison and such that a direct radio communication link can be used for communication with UE 2 in response to receiving instructions to use the second direct radio communication link from the entity by which the probing report was evaluated.
    Type: Application
    Filed: June 22, 2010
    Publication date: April 4, 2013
    Inventors: Göran Selander, Konstantinos Dimou, Johan Lundsjö, Micael Martell, Gunnar Mildh, Mats Näslund
  • Access selection method
    Patent number: 8200820
    Abstract: A method of access management in a communication system comprising a terminal, a first access point, a second access point and a network is described. The first access point offers a first access connection to the terminal and the second access point offers a second access connection to the terminal. A first network connection is provided between the network and the first access point and a second network connection is provided between the network and the second access point. Access connection information associated with at least one of the first and second access connections is monitored, and network connection information associated with at least one of the first and second network connections is monitored. An access connection selection decision is based on the monitored access connection information and the monitored network connection information.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: June 12, 2012
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mikael Prytz, Per Magnusson, Johan Lundsjö, Joachim Sachs
  • Downloading and upgrading terminal software over the air of a wireless device
    Patent number: 8171468
    Abstract: The technology downloads and upgrades terminal software of a communications device over-the-air in a efficient and fail-safe manner. The communication device is provided with radio software from a server via a wireless network including a number of access networks. A download is initiated of radio software designed for a first of two different radio access technologies of the communication device. One of the two radio access technologies of the communication device is selected for downloading the software. The radio software is downloaded via the selected available radio access technology. The radio software designed for the first radio access technology is stored in memory.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: May 1, 2012
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Peter Larsson, Joakim Karl Olof Bergström, Johan Lundsjo, Svante Signell
  • Lightweight MRRM with radio agnostic access selection in the core network
    Patent number: 8155617
    Abstract: A method and arrangement for making a handover decision in a multi-access communication network is disclosed. A first set of criteria is determined for when a handover between at least two access paths should be performed and a report is sent when at least one criterion of a first set of criteria is fulfilled. A second set of criteria is determined for when a handover between said at least two access paths should be performed and a report is sent when at least one criterion of said second set of criteria is fulfilled. One or more data sessions of at least one user terminal network are determined to be handed over based on the sent reports and a core network anchor and a terminal anchor are directed to execute a handover by re-routing said determined data sessions from one access path to an alternative access path.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: April 10, 2012
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Per Magnusson, Joachim Sachs, Johan Lundsjö, Mikael Prytz
  • Method and apparatus for routing packets
    Patent number: 8139587
    Abstract: Packets may be routed in a heterogeneous communications network as follows: for a set of packets comprising at least one packet to be transmitted from a sending node, said sending node being able to handle communication according to at least two access technologies,—selecting in a selection unit in the sending node an access technology for use when transmitting the set of packets,—selecting a receiving node in the network to which to transmit the set of packets among nodes in the network that are able to handle said selected access technology—transmitting the set of packets to the selected receiving node using the selected access technology. Alternatively, a set of packets may be transmitted to one or more nodes using at least two different access technologies. Depending on the transmission quality, one node may be selected to forward the set of packets.
    Type: Grant
    Filed: November 11, 2004
    Date of Patent: March 20, 2012
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Peter Larsson, Mikael Prytz, Kai-Erik Sunell, Johan Lundsjo, Niklas Johansson
  • Communication node and a method for routing traffic in a communication network by calculating at least one metric for at least one link and a sensitivity parameter for said metric
    Patent number: 8023424
    Abstract: The invention relates to a method of routing traffic from a sender to a receiver in a communication network said method comprising for at least two possible routes between the sender and the receiver the step of calculating at least one metric for at least one link in each route, characterized by the steps of calculating a sensitivity parameter for said at least one metric and taking said sensitivity parameter into account when selecting a route. The sensitivity parameter may be based on a derivative of said metric with respect to a variable on which said metric depends. The method may also comprise the step of calculating a reliability parameter for said at least one metric and taking said reliability parameter into account when selecting a route.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: September 20, 2011
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Joachim Sachs, Mikael Prytz, Per Olof Magnus Magnusson, Johan Lundsjo
  • Technique for negotiating on behalf of a mobile ambient network within a multi-operator wireless communication system
    Patent number: 8010150
    Abstract: A mobile ambient network (MAN) negotiator 106 is provided for negotiating with ambient access networks (AANs) 102 on behalf of a MAN 104 to select a particular AAN to handle a wireless communication session for the MAN. The MAN is, e.g., either a user terminal (UT) or a private area network (PAN). The negotiations performed by the MAN negotiator on behalf of the MAN include establishing a secure, trusted relationship between the MAN and the AAN, as well as negotiating costs, billing arrangements and the like. The MAN negotiator communicates with the MAN via a dedicated wireless communication channel but preferably communicates with the AANs via non-wireless, i.e. fixed, connections.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: August 30, 2011
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Per Magnusson, Joachim Sachs, Johan Lundsjo, Mikael Prytz, Andreas Schieder
  • Self-Backhauling in LTE
    Publication number: 20110044279
    Abstract: A method implemented in an anchor base station configured performing a proxy operation at an anchor base station in which the anchor base station acts as a proxy between a second S-GW or an MME node and a self-backhauled base station. The method includes receiving a data packet destined for the user equipment and mapping the received data packet from an incoming General Packet Radio Service (GPRS) Tunneling Protocol (GTP) tunnel to an outgoing GTP tunnel. The method also includes receiving a control message and modifying elements of the control message while copying other elements in the control message and forwarding the control message between the self-backhauled base station and the second S-GW or MME node.
    Type: Application
    Filed: September 9, 2008
    Publication date: February 24, 2011
    Inventors: Niklas Johansson, Johan Lundsjö, Gunnar Mildh, András Ràcz, Christian Hoymann
  • RADIO ACCESS SYSTEM ATTACHMENT
    Publication number: 20090299836
    Abstract: The present invention aims at an effective approach to radio access system attachment in a heterogeneous communication network environment. According to the present invention, cooperation between different radio access systems is executed to advertise one radio access system in another. After receipt of a secure advertisement from a control unit of the advertising radio access system, a broadcasting unit of the receiving radio access system broadcasts advertisement information in relation to the secure advertisement in the communication network. Therefore, according to the present invention, a user terminal may at any time receive broadcasted advertisement information while establishing a trusted relationship with advertiser.
    Type: Application
    Filed: April 4, 2006
    Publication date: December 3, 2009
    Inventors: Joachim Sachs, Göran Selander, András Méhes, Teemu Rinta-Aho, Johan Lundsjö, Jari Arkko, Per Magnusson, Mikael Prytz
  • Communication Node And A Method For Routing Traffic In A Communication Network By Calculating At Least One Metric For At Least One Link And A Sensitivity Parameter For Said Metric
    Publication number: 20090213849
    Abstract: The invention relates to a method of routing traffic from a sender to a receiver in a communication network said method comprising for at least two possible routes between the sender and the receiver the step of calculating at least one metric for at least one link in each route, characterized by the steps of calculating a sensitivity parameter for said at least one metric and taking said sensitivity parameter into account when selecting a route. The sensitivity parameter may be based on a derivative of said metric with respect to a variable on which said metric depends. The method may also comprise the step of calculating a reliability parameter for said at least one metric and taking said reliability parameter into account when selecting a route.
    Type: Application
    Filed: June 20, 2005
    Publication date: August 27, 2009
    Inventors: Joachim Sachs, Mikael Prytz, Per Olof Magnus Magnusson, Johan Lundsjo
  • Method and Arrangement for Route Cost Determination and Selection with Link Cost Interaction
    Publication number: 20090175172
    Abstract: This invention extends routing mechanisms that use link metrics for route selection so that: A link metric cross correlation vector is determined for all links, where each element in the vector corresponds to some other link, and reflects the change in the link metric value if a data flow would already use this other link. The invention further describes a specific embodiment where all cross-correlating links are adjacent to each other, i.e., they terminate or originate in a common node. A mechanism is described to create an extended routing graph. This extended graph permits the use of standard polynomial time algorithms that simultaneously construct the optimal route and find the optimal route metric (such as shortest-path algorithms) also for the adjacent link cross-correlating case.
    Type: Application
    Filed: December 1, 2005
    Publication date: July 9, 2009
    Inventors: Mikael Prytz, Joachim Sachs, Per Magnusson, Johan Lundsjö, Peter Larsson
  • Method And Apparatus For Routing Packets
    Publication number: 20090010269
    Abstract: Packets may be routed in a heterogeneous communications network as follows: for a set of packets comprising at least one packet to be transmitted from a sending node, said sending node being able to handle communication according to at least two access technologies, —selecting in a selection unit in the sending node an access technology for use when transmitting the set of packets, —selecting a receiving node in the network to which to transmit the set of packets among nodes in the network that are able to handle said selected access technology—transmitting the set of packets to the selected receiving node using the selected access technology. Alternatively, a set of packets may be transmitted to one or more nodes using at least two different access technologies. Depending on the transmission quality, one node may be selected to forward the set of packets.
    Type: Application
    Filed: November 11, 2004
    Publication date: January 8, 2009
    Inventors: Peter Larsson, Mikael Prytz, Kai-Erik Sunell, Johan Lundsjo, Niklas Johansson