Patents by Inventor Gunnar Rydnell

Gunnar Rydnell 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: 10349301
    Abstract: A method performed by a first network node operating in a wireless communication network for enabling events triggered by a wireless device served by the first network node to be reported in the wireless communications network is provided. The first network node determines that an event has been triggered by the wireless device. Then, the first network node context information associated with the wireless device from a database node that is shared externally by the first network node with one or more network nodes in the wireless communications network, which context information indicates that events triggered in the first network node by the wireless device is to be reported in the wireless communications network. After the obtaining, the first network node determines that events triggered by the wireless device is to be reported in the wireless communications network based on the obtained context information.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: July 9, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan Karl Toth, Lars Lövsén, Gunnar Rydnell
  • Patent number: 10321305
    Abstract: A method performed in a first network node includes the first network node transmitting, to a second network node, a first message including a user equipment (UE) status request of a UE. The method further includes the first network node receiving, from the second network node, a second message including a UE status response. The method also includes the first network node determining, based on the received UE status, whether to modify an PDN connection and/or a corresponding IP-CAN session associated with the UE.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: June 11, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Yong Yang, Roland Gustafsson, Gunnar Rydnell
  • Publication number: 20190037383
    Abstract: The invention relates to a node in a communications network for enabling communication with at least one wireless communication terminal served by the communications network. According to an embodiment, the node stores at least one current User Equipment (UE) context of the at least one communication terminal to be used by a first network entity of the plurality of network entities in the communications network; receives, from a second network entity of the plurality of network entities, a message intended for the first network entity; and delivers at least a part of the received message to the first network entity and at least a part of the stored at least one current UE context to be used by the first network entity.
    Type: Application
    Filed: February 15, 2016
    Publication date: January 31, 2019
    Inventors: Yong Yang, Gunnar Rydnell, Anders Fredén
  • Publication number: 20190021029
    Abstract: Example embodiments presented herein are directed towards a stateless mobility management node, and corresponding methods therein, for handling a mobility procedure for a wireless device within a wireless communications network. The example embodiments provide for the management of a common external database shared by the stateless mobility management node and at least one other stateless mobility management node, and storing context information for wireless devices served by the stateless mobility management nodes. Such management allows for migrating the network towards a virtualized and stateless architecture. Thus, stateless mobility management nodes with an external database may interoperate with legacy stateful mobility management nodes.
    Type: Application
    Filed: August 14, 2015
    Publication date: January 17, 2019
    Inventors: Gunnar Rydnell, Stefan Karl Toth
  • Publication number: 20190014550
    Abstract: Systems and methods relating to a cellular communications system having an architecture in which Serving Gateway (SGW) user plane functionality is separated from SGW control plane functionality are disclosed. In some embodiments, a cellular communications system having an architecture in which SGW user plane functionality is separated from SGW control plane functionality comprises a Serving Gateway Control plane entity (SGW-C) partitioned into a plurality of virtual SGW-Cs that correspond to a respective plurality of SGW User Plane (SGW-UP) service areas. The cellular communications system further comprises a plurality of SGW-UP pools each comprising one or more SGW User entities (SGW-Us), wherein each SGW-UP pool serves a respective one of the plurality of SGW-UP service areas. In this manner, the coordination problem between Tracking Areas (TAs) and the SGW-UP service areas is avoided.
    Type: Application
    Filed: November 10, 2016
    Publication date: January 10, 2019
    Inventors: Stefan Rommer, Jan Backman, Peter Ramle, Gunnar Rydnell
  • Patent number: 10104703
    Abstract: Example embodiments presented herein are directed towards providing direct communications between a mobility management node (e.g., SGSN, S4-SGSN or MME) and an MTC-IWF node via a T5 interface. With the use of the direct communications unnecessary queries to a HSS or HLR may be avoided. The direct communications are established by the mobility management node and the MTC-IWF node saving identifying information of the other node.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: October 16, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gunnar Rydnell, Hans Bertil Rönneke
  • Publication number: 20180255474
    Abstract: A method performed by a first network node operating in a wireless communication network for enabling events triggered by a wireless device served by the first network node to be reported in the wireless communications network is provided. The first network node determines that an event has been triggered by the wireless device. Then, the first network node context information associated with the wireless device from a database node that is shared externally by the first network node with one or more network nodes in the wireless communications network, which context information indicates that events triggered in the first network node by the wireless device is to be reported in the wireless communications network. After obtaining, the first network node determines that events triggered by the wireless device is to be reported in the wireless communications network based on the obtained context information.
    Type: Application
    Filed: September 18, 2015
    Publication date: September 6, 2018
    Inventors: Stefan Karl TOTH, Lars LÖVSÉN, Gunnar RYDNELL
  • Publication number: 20180248919
    Abstract: Method and system comprising a remote UE being connected to a relay UE, the system moreover comprising a HSS of the remote UE, an ADMF, a MME serving the relay UE and a GW. The relay UE is transmitting in a message (12) an identity of the remote UE (IMSI_1) and an IP address of the remote UE to the MME serving the remote UE. The MME transmitting in an update record message (14) for the remote UE (IM-SI_1); the identity of a relay UE and the identity of the MME serving the relay UE, to the HSS of the remote UE.
    Type: Application
    Filed: August 26, 2016
    Publication date: August 30, 2018
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Roland GUSTAFSSON, Gunnar RYDNELL, Shabnam SULTANA
  • Publication number: 20180167802
    Abstract: The embodiments herein relate to a method in a first mobility management node (108a) for handling updated subscriber data associated with a UE (101). The UE (101) is currently unreachable by the first mobility management node (108a). The first mobility management node (108a) receives, from a subscriber database (128), updated subscriber data associated with the UE (101). At least part of the updated subscriber data is modified. The first mobility management node (108a) determines that transmission of the updated subscriber data to a gateway node (110) should be postponed until the UE (101) has become reachable.
    Type: Application
    Filed: February 9, 2018
    Publication date: June 14, 2018
    Inventors: Yong Yang, Roland Gustafsson, Gunnar Rydnell
  • Patent number: 9992663
    Abstract: The embodiments herein relate to a method in a first mobility management node for handling updated subscriber data associated with a UE. The UE is currently unreachable by the first mobility management node. The first mobility management node receives, from a subscriber database, updated subscriber data associated with the UE. At least part of the updated subscriber data is modified. The first mobility management node determines that transmission of the updated subscriber data to a gateway node should be postponed until the UE has become reachable.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: June 5, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yong Yang, Roland Gustafsson, Gunnar Rydnell
  • 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
  • Patent number: 9906959
    Abstract: The present invention relates to mobile communication systems, and more particularly to technology that enables a User Equipment (UE) to obtain authorization to use Proximity-based Services. In a first aspect of the invention, a method is performed by a home network proximity service function (104) for authorizing a mobile terminal (100) to use a proximity service, comprising receiving a request from the mobile terminal to obtain proximity service authorization in at least one other network (107, 108), obtaining authorization information from a proximity service function (103, 105) of the at least one other network for which proximity service authorization is requested, and providing the mobile terminal with authorization information required for authorization with said at least one other network for which the request is made.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: February 27, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Gunnar Rydnell, Roland Gustafsson, Ann-Christine Sander, Shabnam Sultana, Stefan Karl Toth
  • Publication number: 20180042057
    Abstract: Systems and methods for efficient delivery of infrequent small data are provided. A system for providing communication infrequent small Protocol Data Units (PDUs) to/from a UE includes an Access Node (AN); a session management functions node; and a User Plane (UP) functions entity. The session management functions node receives a session setup request and selects the UP functions entity and a tunnel identifier associated with the UE. In case of an IP PDU session type, trigger an establishment of a UP. The UP functions entity creates a UE context for the UE; stores the UE context for the UE; completes an establishment in a Control Plane (CP); and provides the AN with uplink tunnel information. The AN stores the UE context and transmits a session setup response to the UE. In this way, an improved ratio of the signalling/user data relation may be obtained for devices sending infrequent small data.
    Type: Application
    Filed: October 16, 2017
    Publication date: February 8, 2018
    Inventors: Kaj Johansson, Gunnar Rydnell, Stefan Rommer, Jan Backman
  • Patent number: 9801101
    Abstract: The embodiments herein relate to method in a mobile management entity, referred to as MME, for enabling handover of a communication service between a circuit switched (CS) network and a packet switched (PS) network. The user equipment is located in the CS network and having a communications service in the CS network. Handling is improved by providing communication between the MME and a mobile switching center server.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: October 24, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gunnar Rydnell, Ann-Christine Sander, Yong Yang
  • Publication number: 20170280314
    Abstract: The embodiments herein relate to a method in a first mobility management node for handling updated subscriber data associated with a UE. The UE is currently unreachable by the first mobility management node. The first mobility management node receives, from a subscriber database, updated subscriber data associated with the UE. At least part of the updated subscriber data is modified. The first mobility management node determines that transmission of the updated subscriber data to a gateway node should be postponed until the UE has become reachable.
    Type: Application
    Filed: September 26, 2014
    Publication date: September 28, 2017
    Inventors: Yong Yang, Roland Gustafsson, Gunnar Rydnell
  • Publication number: 20170265245
    Abstract: A method performed in a first network node includes the first network node transmitting, to a second network node, a first message including a user equipment (UE) status request of a UE. The method further includes the first network node receiving, from the second network node, a second message including a UE status response. The method also includes the first network node determining, based on the received UE status, whether to modify an PDN connection and/or a corresponding IP-CAN session associated with the UE.
    Type: Application
    Filed: November 13, 2015
    Publication date: September 14, 2017
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Yong YANG, Roland GUSTAFSSON, Gunnar RYDNELL
  • Publication number: 20170257801
    Abstract: The embodiments herein relate to a method performed by a mobility node for handling a UE which has moved from an old to a new location. The mobility node retrieves UE context from a database. The mobility node determines whether there is a change of mobility node and first gateway at the new location. When there is a change of the first gateway, the mobility node initiates setup of a tunnel between a second gateway and a new first gateway. When there is a change of the mobility node, the mobility node provides a subscriber server with UE context for a new mobility node at the new location. The mobility node transmits updated UE context to the database.
    Type: Application
    Filed: January 14, 2016
    Publication date: September 7, 2017
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Stefan TOTH, Gunnar RYDNELL, Ann-Christine SANDER
  • Patent number: 9730177
    Abstract: A quite simple and effective way for simplifying the mobile system for the mobile broadband customers, thereby lowering the equipment costs and in the end allowing for more competitive flat rate fees, is to direct the traffic from mobile broadband devices (110) to dedicated gateways (120). The mobile broadband device (110) is comprised in a user equipment (105) in a wireless communication network (100). The wireless communication network (100) comprises a network node (115) is arranged to be connected to the mobile broadband device (110). First, the mobile broadband device (110) sends (200, 300) an attach request message to the network node (115). The attach request comprises an information element indicating that the device (110) is a broadband device. Then, the device (110) receives (301) an attach accept message from the network node (115) comprising address information of the dedicated gateway (120).
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: August 8, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Hans Rönneke, Gunnar Rydnell, Stefan Karl Toth
  • Patent number: 9723030
    Abstract: A method (100) for use in a Mobility Management Entity, an MME, in an LTE system, comprising (110) obtaining and determining the capability of a mobile terminal in the LTE system regarding the mobile terminal's capability for handover over from the LTE system to a 2G and/or a 3G system, comparing (115) the mobile terminal's capability and the LTE system's capability for Single Radio Voice Channel Continuity, SRVCC, handover over from the LTE system to a 2G and/or a 3G system, and, depending on the outcome of the comparison, instructing (120, 125) the mobile terminal to use Voice over LTE, VoLTE, or Circuit Switched, CS, fallback when initiating voice sessions.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: August 1, 2017
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Peter Hedman, Håkan Palm, Gunnar Rydnell, Magnus Stattin
  • Publication number: 20170171725
    Abstract: A method, device, and computer program product for facilitating device-to-device, D2D, communication among wireless communication devices, WCDs, is provided. The device is a first WCD that receives a wireless packet broadcasted by a second WCD. The wireless packet has one or more of i) a group identifier that identifies a group to which the second WCD belongs and ii) an application identifier that identifies an application which generated at least part of the wireless packet. The first WCD extracts from the wireless packet one or more of the group identifier and the application identifier. The first WCD determines whether to discard the wireless packet based on the one or more of the group identifier and the application identifier extracted from the wireless packet.
    Type: Application
    Filed: February 24, 2017
    Publication date: June 15, 2017
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan Karl TOTH, Roland GUSTAFSSON, Gunnar RYDNELL