Patents by Inventor Ralf Keller

Ralf Keller 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).

  • Publication number: 20180359286
    Abstract: An interruption of a call which is established or which is currently being established via an internet protocol domain of a mobile network may be avoided during a handling of a circuit switched signaling service to be terminated to a terminal and being different from a mobile terminating location request service.
    Type: Application
    Filed: August 21, 2018
    Publication date: December 13, 2018
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ralf KELLER, Magnus HALLENSTÅL, Ivo SEDLACEK
  • Publication number: 20180341399
    Abstract: Probe stations, probe systems including probe stations, and methods for controlling the operation of probe stations. In one embodiment, the methods utilize information regarding contact between two of a user's fingers and a touch screen display to change a location of a structure on the touch screen display. In another embodiment, the methods utilize information regarding contact between three of the user's fingers and the touch screen display to transition among different views of the probe stations. In another embodiment, the methods utilize information regarding contact between two fingers on one of the user's hands and the touch screen display and information regarding contact between two fingers on the other of the user's hands and the touch screen display to rotate the image of the probe station. The probe stations include a controller programmed to perform the methods. The probe systems include the probe stations, a server, and mobile device.
    Type: Application
    Filed: May 22, 2018
    Publication date: November 29, 2018
    Inventors: Jens Fiedler, Ralf Keller, Jeremy Houston Smith
  • Publication number: 20180295566
    Abstract: A network node controls communication of user equipment in a mobile network with cellular network access and wireless local area network access. The network node receives from a further network node, information concerning a wireless local area network access to which the user equipment is attached and information concerning a cellular network access to which the user equipment is attached. On the basis of the received information, the network node controls whether to provide at least one service via the wireless local area network access or via the cellular network access.
    Type: Application
    Filed: May 29, 2018
    Publication date: October 11, 2018
    Inventors: Ralf KELLER, Afshin ABTIN, Magnus HALLENSTÅL, Stefan ROMMER
  • Patent number: 10098061
    Abstract: The invention relates to a method and devices for selecting a communication network for a mobile terminal accessing the communication network via an unlicensed wireless access network. Therein, the communication network is selected by a mobile terminal to fulfill carrier grade requirements, which can include lawful interception capabilities. An access node for an unlicensed wireless access network is configured to provide a list of communication networks that fulfill carrier grade requirements.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: October 9, 2018
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Ivo Sedlacek, Ralf Keller
  • Patent number: 10079860
    Abstract: Methods, nodes, a terminal, a communication system and computer programs to be used in association with terminating a circuit switched signaling service to a terminal (108) via a circuit switched access of a mobile network (100) are described. In one method, the signaling service is different from a voice call via the circuit switched access and from a mobile terminating location request service. A call via an internet protocol domain of the mobile network (100) and a packet switched access of the mobile network (100) is or is being established for the terminal (108). The method is performed by a control node (104) of the mobile network (100) and comprises receiving (112) a paging request for paging the terminal (108) via the packet switched access. The paging request is for the circuit switched signaling service.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: September 18, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ralf Keller, Magnus Hallenstål, Ivo Sedlacek
  • Publication number: 20180227760
    Abstract: Methods and systems are provided for the selection of a gateway node by a mobile terminal when the mobile terminal attaches to an untrusted radio access network while the mobile terminal is roaming out of its home communication network and into a visited communication network. Methods and systems are also provided for the handling of a connection request to a gateway node by a mobile terminal when the mobile terminal attaches to an untrusted radio access network while the mobile terminal is roaming out of its home communication network and into a visited communication network. Some embodiments may prevent or otherwise block a mobile terminal from connecting to a gateway node in its home communication network while the mobile terminal is roaming out of its home communication network and into a visited communication network when the mobile terminal is not authorized or allowed to do so.
    Type: Application
    Filed: October 28, 2016
    Publication date: August 9, 2018
    Inventors: George FOTI, Ralf KELLER
  • Publication number: 20180227978
    Abstract: There are provided mechanisms for supporting a Circuit Switched (CS) service in a 5G Core Network (5GCN). A method is performed by a wireless device. The method comprises registering with an Access and Mobility Management Function (AMF) of the 5GCN using Non-Access Stratum (NAS) signalling. The method comprises registering, with the 5GCN and using NAS signalling, for at least one CS service, wherein the registering for the at least one CS service is performed in conjunction with registering with the AMF.
    Type: Application
    Filed: December 21, 2016
    Publication date: August 9, 2018
    Inventors: Ralf Keller, Peter Hedman, Ann-Christine Sander, Shabnam Sultana
  • Publication number: 20180227750
    Abstract: This invention is related to S8 Home Routing (S8HR), under specification by the Global System for Mobile Communications (GSM) Association (GSMA) and 3rd Generation Partnership Project (3GPP). In a first aspect of the invention, a method is provided for enabling Lawful Interception (LI) when a wireless communication terminal performs S8HR roaming. The method comprises receiving, at a first LMISF from a first SGW serving the wireless communication terminal, IMS-related information of the wireless communication terminal required for performing LI, and providing, from the first LMISF upon the wireless communication terminal relocating to a second SGW serving the wireless communication terminal, the received IMS-related information of the wireless communication terminal required for performing LI, to a second LMISF associated with the second SGW.
    Type: Application
    Filed: October 26, 2016
    Publication date: August 9, 2018
    Inventors: Roland Gustafsson, Maurizio Iovieno, Ralf Keller, Patrik Dannebro
  • Publication number: 20180191782
    Abstract: A communication device comprises a container environment with a plurality of containers each having one or more applications and each being connectable to a network slice, and a container manager configured to control communication between the applications and the network slices, wherein the container manager prohibits communication between a first application in a first container and a second application in a second container.
    Type: Application
    Filed: April 3, 2017
    Publication date: July 5, 2018
    Inventors: Branko Djordjevic, Ralf Keller
  • Publication number: 20180184336
    Abstract: The present disclosure generally relates to aspects of applying policy and charging rules to bearers in a communication network. The policy and charging rules are provided for application to at least a dedicated bearer. The technique presented herein may be implemented in connection with a mobile terminal moving between an access point of a first type supporting default and dedicated bearers and an access point of a second type supporting default and not supporting dedicated bearers. A method embodiment of the present disclosure removes an established dedicated bearer and temporarily suspends application of the rules to the dedicated bearer upon a move from an access point of the first type to an access point of the second type. A network endpoint of an ongoing session kept agnostic of the removal of the dedicated bearer.
    Type: Application
    Filed: July 29, 2015
    Publication date: June 28, 2018
    Inventors: Ralf Keller, Patrik Dannebro, Anders Ryde
  • Patent number: 10009830
    Abstract: A first network node controls WLAN accesses and a second network node controls cellular network accesses. The first network node (NN) records a time of a last radio contact event of a user equipment (UE) with respect to a WLAN access controlled by the first NN. In response to a request from a third NN, the first NN indicates the recorded time of the last radio contact event to the third NN. The second NN records a time of a last radio contact event of the UE with respect to a cellular network access controlled by the second NN. In response to a request from the third NN, the second NN indicates the recorded time of the last radio contact event to the third NN. The third NN can use the indicated times to determine whether the UE is attached to a WLAN access or to a cellular network access.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: June 26, 2018
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (publ)
    Inventors: Ralf Keller, Afshin Abtin, Magnus Hallenstål, Stefan Rommer
  • Patent number: 9986467
    Abstract: Example embodiments presented herein are directed towards a base station, user equipment and Mobility Management Entity, and corresponding methods, for providing handling during a combined Single Radio Voice Call Continuity and Packet Switched Handover procedure.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: May 29, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Peter Ramle, Ralf Keller, Gunnar Rydnell
  • Publication number: 20180146399
    Abstract: A method and apparatus for transferring a session from a packet switched access network to a circuit switched access network. A Mobility Management Entity receives a service type indicator from a gateway node. The service type indicator indicates a type of service for the session, and is associated with bearers used for the session. The Mobility Management Entity subsequently receives, from an eNodeB, an indication that the session is to be transferred from the packet switched network to the circuit switched access network. The Mobility Management Entity determines the bearers associated with the session using the service type indicator, and initiates transfer of the session using those bearers. This ensures that the correct bearers are transferred regardless of whether or not identifiers such as QCI values have been ascribed to other types of service.
    Type: Application
    Filed: January 17, 2018
    Publication date: May 24, 2018
    Inventors: Fredrik Lindholm, Ralf Keller
  • Patent number: 9973338
    Abstract: There is provided mechanisms for configuration of liveness check using Internet key exchange messages. A method is performed by a user equipment. The method comprises transmitting, to a core network node, a first Internet key exchange message comprising a configuration attribute indicating support of receiving a timeout period for liveness check. The method comprises receiving, from the core network node, a second Internet key exchange message comprising a configuration attribute indicating a timeout period for said liveness check.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: May 15, 2018
    Inventors: Ivo Sedlacek, Rikard Eriksson, Ralf Keller
  • Patent number: 9925856
    Abstract: An arrangement in a motor vehicle includes a subframe. An energy source is arranged in a region of the subframe and components are assigned to the energy source. The energy source and the components are positioned in front of the subframe in a crash direction. The subframe has a window which exceeds the external dimensions of at least one of the energy source or the components and is configured to allow the at least one of the energy source or the components to dip into the window.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: March 27, 2018
    Assignee: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT
    Inventors: Eduard Ewert, Ralf Keller
  • Patent number: 9929389
    Abstract: A battery device for an at least partially electrically operated vehicle and a method for producing the battery device. The battery device includes a plurality of battery modules, each having at least one battery cell, and a receiving device for receiving the battery modules. In this arrangement, the receiving device includes a dividing wall, which is arranged underneath the battery modules, and a base plate, which is arranged underneath the dividing wall. The dividing wall and the base plate are attached to at least one connecting element and are connected to one another by the connecting element while being spaced apart.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: March 27, 2018
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Stanislaw Klimek, Bernd Palmer, Matthias Herntier, Ralf Keller, Florian Scheerer
  • Publication number: 20180079316
    Abstract: A traction battery includes cell modules for storing electrical energy, a housing for encasing the cell modules, and sensors for measuring a mechanical load on the cell modules. Also disclosed is a vehicle having the traction battery.
    Type: Application
    Filed: September 14, 2017
    Publication date: March 22, 2018
    Applicant: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Adriano Morozini DE LIRA, Ralf KELLER
  • Patent number: 9924414
    Abstract: The invention relates to methods and nodes for supporting a session transfer, for a user equipment, from a circuit switched network to a packets witched network. According to one aspect a method for operating a control node of a core network is provided. The method comprises the steps: requesting from a radio access network of the circuit switched network information on whether a capability of the user equipment related to the session transfer are compatible with a network configuration related to the session transfer; receiving from the radio access network an indication whether the capability of the user equipment and the network configuration are compatible; determining whether to indicate that the session transfer is supported by using the received compatibility indication; and setting an indication whether the session transfer is supported according to the determination.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: March 20, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ralf Keller, Peter Hedman, Fredrik Lindholm
  • Patent number: 9911952
    Abstract: A battery module (10) for a motor vehicle has at least one battery cell (12) for producing and storing electrical energy and a rigid battery frame (14) in which the at least one battery cell (12) is accommodated. An absorption element (24) is secured to the battery frame (14) by connection sections (28). The absorption element (24) is spaced apart from the battery frame (14) in such a way that a cavity (26) is formed between the absorption element (24) and the battery frame (14).
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: March 6, 2018
    Assignee: DR. ING. H.C.F. PORSCHE AKTIENGESELLSCHAFT
    Inventors: Ralf Keller, Eduard Ewert
  • Publication number: 20180063688
    Abstract: A method in a proxy call session control function, P-CSCF, of handling an unauthenticated emergency call originating from a roaming user equipment, UE, which is not attached to the P-CSCF. The P-CSCF receives a SIP INVITE request from the UE, the INVITE request relating to the unauthenticated emergency call, and determines an IP address of the UE. The P-CSCF sends an identity query to a policy and charging rules function, PCRF, indicating the IP address of the UE and requesting other identifiers of the UE, and receives one or more other identifiers of the UE from the PCRF. The P-CSCF constructs a TEL and/or SIP uniform resource identifier, URI, for the UE on the basis of at least one of said other identifiers, inserts the URI into the SIP INVITE request, and sends the SIP INVITE request to a public safety answering point, PSAP. Also provided are corresponding methods in other nodes and for authenticated emergency calls, and apparatus for implementing the methods.
    Type: Application
    Filed: April 1, 2015
    Publication date: March 1, 2018
    Inventors: Fredrik LINDHOLM, Ralf KELLER, Susana FERNANDEZ ALONSO, Ivo SEDLACEK