Patents by Inventor Gunnar Mildh

Gunnar Mildh 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: 10091642
    Abstract: Handling of UE capability information in a mobile telecommunications network wherein an eNodeB receives information regarding the UE capability information from the UE and stores the information. The eNodeB sends the UE capability information to the EPC, i.e., to an MME, which receives and stores the UE capability information. When the UE transits from idle to active state, does an initial attach, or when a part of the UE capabilities have changed, it sends a message to the eNodeB regarding the update. The eNodeB forwards the message to the UE, which sends a response associated with the previously stored UE capability information to the eNodeB. The eNodeB decides whether the UE capabilities stored in the NUB is up-to-date based on the message from the UE and the response from the MME. If the UE holds updated OF capabilities the eNodeB can request updated UE capability information from the UE.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: October 2, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gunnar Mildh, Ingrid Nordstrand, András Rácz, Magnus Stattin, Pontus Wallentin
  • Publication number: 20180279203
    Abstract: A method for controlling access to a wireless communication network (102), the method comprising: - a wireless communication device (101) receiving a parameter of a system configuration (MIB, SIB1, AIT-1,AIT-2) for accessing to the wireless communication network, - the wireless communication device (101) receiving (S2) an indication (102) from the wireless communication network (102), the indication indicating whether an access attempt to the wireless communication network (102) is allowed using the parameter of the system configuration with a validity of the system configuration being undetermined, - the wireless communication device (102) performing (S4) an access attempt to the wireless communication network (102), if the indication indicates whether an access attempt to the wireless communication network (102) is allowed using the parameter of the system configuration (MIB, SIB1, AIT-1,AIT-2) with a validity of the system configuration being undetermined.
    Type: Application
    Filed: September 4, 2015
    Publication date: September 27, 2018
    Inventors: Icaro L. J. da Silva, Erik Eriksson, Pål Frenger, Gunnar Mildh, Torgny Palenius, Jose Luis Pradas, Johan Rune
  • Patent number: 10075987
    Abstract: The present disclosure relates to a method, performed in a single IP-address source node in a wireless communication network, of establishing a multipath TCP, MPTCP, connection for transfer of TCP data in MPTCP subflows to a destination node. The single IP-address source node receives an MPTCP trigger to activate a multipath TCP connection. One or more source TCP ports are selected, wherein each source TCP port is selected to constitute a starting point of an MPTCP subflow. One or more MPTCP notifications are sent to the destination node. Each MPTCP notification includes information on a selected source TCP port. The single IP-address source node receives an acknowledgment of each MPTCP notification from the destination node. The present disclosure also relates to corresponding method performed in a destination node and a wireless device configured for establishing an MPTCP connection.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: September 11, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Oumer Teyeb, Gunnar Mildh, Jari Vikberg
  • Publication number: 20180255485
    Abstract: The present disclosure relates to a method in a mobile station for base station change from a source base station to a target base station in a cellular radio network. The base station transfers packet switched communications between the mobile station and the network, and the method comprises receiving a handover command message from the source base station at the mobile station. The method further comprises transmitting in a target cell a message to the network providing a downlink sequence number status for a packet flow subject to lossless packet switched handover implicitly acknowledging downlink packets received by the mobile station.
    Type: Application
    Filed: May 7, 2018
    Publication date: September 6, 2018
    Inventors: Lars Tedenvall, Gunnar Mildh, John Diachina, Ingemar Backlund
  • Patent number: 10064076
    Abstract: A method and a wireless device (110) for managing probe messages are disclosed. The probe messages are used for verifying a required level of a connectivity for a service of the wireless device (110) towards a wireless network (100). The required level of the connectivity relates to likelihood of maintaining the connectivity towards the wireless network (100). The wireless device (110) estimates an estimated level of the connectivity for the wireless device (110). The wireless device (110) further adjusts an amount of the probe messages based on the required level of the connectivity and the estimated level of the connectivity. Moreover, corresponding computer programs and computer program products are disclosed.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: August 28, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Erik Dahlman, Magnus Frodigh, Mikael Höök, Harald Kallin, Gunnar Mildh, Joachim Sachs
  • Patent number: 10064107
    Abstract: Embodiments of the present disclosure provide a method for mobility management at a network management center. The method comprises indicating a target access node to a terminal device being served by a source access node, in response to determining that the terminal device needs to be handed over to the target access node. The method also comprises transmitting network-related context information of the terminal device to the target access node that receives terminal-related context information of the terminal device from the terminal device. By virtue of this method, the access node may be made with a simple and low cost structure; deployment of access nodes may be more flexible and handover of the terminal device may be more efficient.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: August 28, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Rui Fan, Gunnar Mildh, Qianxi Lu
  • Publication number: 20180242205
    Abstract: Systems and methods of handing over a wireless device 300 are provided. In one exemplary embodiment, a method performed by a source base station 100 of handing over a wireless device 300 from the source base station 100 to a target base station 200 may include determining that a wireless device 300 is to be handed over from the source base station 100 to the target base station 200. Further, the method may include sending, to the target base station 200, a current mapping between one or more flow identifiers and a first set of data radio bearers used for communication between the wireless device 300 and the source base station 100.
    Type: Application
    Filed: April 4, 2017
    Publication date: August 23, 2018
    Inventors: Gunnar Mildh, Paul Schliwa-Bertling
  • Publication number: 20180242142
    Abstract: There is provided a method of a wireless terminal arranged to operate in a communication network including communication capabilities according to a first radio access technology, RAT, and a second RAT with the wireless terminal. The method comprises transmitting data to a network node of the communication network or connected to the communication network via a connection using the first RAT. The data enables the network node to determine information about a position of the wireless terminal. The method further comprises receiving a set of parameters from the network node via the connection using the first RAT. The set of parameters is related to any of cell search and system information search for the second RAT. The method further comprises performing cell search or system information search for the second RAT based on the set of parameters.
    Type: Application
    Filed: December 16, 2016
    Publication date: August 23, 2018
    Inventors: Andres Reial, Joakim Axmon, Håkan B. Björkegren, Gunnar Mildh, Johan Nilsson
  • Publication number: 20180242271
    Abstract: The present invention relates to the coordination of simultaneous multi-RAT camping in in a wireless communication network that provides radio access for a terminal device via at least a first and second wireless radio access operating with different radio access technologies.
    Type: Application
    Filed: July 25, 2016
    Publication date: August 23, 2018
    Inventors: Johan Rune, Icaro L. J. Da Silva, Gunnar Mildh, Jose Luis Pradas
  • Patent number: 10057055
    Abstract: A method in a User Equipment (UE) of an Evolved Packet System (EPS) establishes a security key (K_eNB) for protecting Radio Resource Control/User Plane (RRC/UP) traffic exchanged with a serving eNodeB. The method comprises sending a Non-Access Stratum (NAS) Service Request to a Mobility Management Entity (MME), the request indicating a NAS uplink sequence number (NAS_U_SEQ). The method further comprises receiving an indication of the NAS_U_SEQ of the NAS Service Request sent to the MME, back from the MME via the eNodeB. The method further comprises deriving the K_eNB from at least the received indication of the NAS_U_SEQ and from a stored Access Security Management Entity-key (K_ASME) shared with said MME.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: August 21, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Rolf Blom, Gunnar Mildh, Karl Norrman
  • Publication number: 20180234838
    Abstract: Systems and methods are disclosed herein that relate to configuration of a periodic updating timer for, e.g., a Radio Access Network (RAN)-controlled inactive state. In some embodiments, a method of operation of a RAN node in a cellular communications network comprises configuring a User Equipment (UE) with a timer value T for a periodic updating timer. In this manner, the RAN node is able to configure the UE with a time value T, e.g., for use by the UE for providing periodic update messages while the UE is operating in an inactive state such as, e.g., a RAN-controlled inactive state.
    Type: Application
    Filed: May 19, 2017
    Publication date: August 16, 2018
    Inventors: Gunnar Mildh, Paul Schliwa-Bertling
  • Publication number: 20180227832
    Abstract: The present disclosure relates to methods for efficiently transmitting system access information that is used by wireless terminals (200) to access a cell (20) in a wireless communication network (10). The system access information may include synchronization signals, system information, or reference signals used for channel estimation. In exemplary embodiments of the disclosure, the access nodes (100) within the wireless communication network (10) may be configured to operate in two or more operating modes. The information density of the system access information transmitted by the access node varies depending on the operating mode. For example, the access node (100) may vary the information density by varying the amount of system access information that is transmitted or the periodicity of the system access information that is transmitted.
    Type: Application
    Filed: August 14, 2015
    Publication date: August 9, 2018
    Inventors: Icaro L. J. Da Silva, Gunnar Mildh, Jose Luis Pradas, Johan Rune
  • Publication number: 20180206245
    Abstract: A technique for controlling a cluster of radio access nodes for radio communication with a user equipment is described. As to a method (200) aspect of the technique, information is received (202) from at least one of the user equipment and the radio access nodes, wherein the information is the cluster indicative of a radio quality (904-908) of the radio communication. Based on the received information, a number of radio access nodes that redundantly communicate with the user equipment is changed (204).
    Type: Application
    Filed: July 9, 2015
    Publication date: July 19, 2018
    Applicant: Telefonaktiebolaget LM Ericsson (PUBL)
    Inventors: Rui Fan, Qianxi Lu, Gunnar Mildh, Johan Rune
  • Publication number: 20180206278
    Abstract: A method for enabling establishment of at least one Packet Data Network (PDN) connection between a wireless communication device and a communication network, and a wireless communication device performing the method of enabling establishment of at least one PDN connection with a communication network. The method comprises detecting whether connectivity to an Information Centric Networking (ICN) network is available via the at least one PDN connection for transporting ICN data.
    Type: Application
    Filed: May 31, 2016
    Publication date: July 19, 2018
    Inventors: Gunnar MILDH, Hans ERIKSSON, Kim LARAQUI, Neiva LINDQVIST, Ala NAZARI, Borje OHLMAN, Ioanna PAPPA, Dinand ROELAND, Johan RUNE, Patrik SELLSTEDT
  • Patent number: 9998569
    Abstract: A method and apparatus for handling Multipath Transmission Control Protocol, MPTCP, signaling in a communications network. The communications network includes a first node hosting an MPTCP proxy function, and a second node in a second access network. The second node receives from a mobile terminal an attachment request. The second node then sends a message to a remote database and receives a response, the response including an identity of the first node. An MPTCP data path can then be redirected from the second access network to the MPTCP proxy function. Even in cases where the MPTCP proxy function is located at or between the PDN Gateway and the mobile terminal, the second access can be made aware of the location of the MPTCP proxy function and route MPTCP data traffic accordingly.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: June 12, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Dinand Roeland, Gunnar Mildh, Stefan Rommer, Jari Vikberg
  • Patent number: 9998954
    Abstract: The invention relates to a method for enabling relocation of a function for processing data packets of a flow associated with a device. The method is performed in an arrangement of a communication system, which is allocated as a proxy for control messages exchanged between an instance of the function for processing the data packets of the flow and a control instance controlling how the function processes the data packets of the flow. The method comprises obtaining (920) information indicating that the function for processing the data packets is relocated from a first instance to a second instance. The method further comprises forwarding (930) control messages received from the control instance to the second instance of the function for processing the data packets and vice versa, in response to the obtained information.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: June 12, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Dinand Roeland, Conny Larsson, Gunnar Mildh, Johan Rune, Zoltán Turányi
  • Patent number: 9998958
    Abstract: A mobile station (MS) and method for base station handover from a source cell of a source base station to a target cell of a target base station in a packet-switched cellular radio network. While the MS is still in the source cell, the MS receives from the network, a handover command message and information regarding a next expected uplink packet for a packet flow subject to lossless packet-switched handover. Upon arrival of the MS in the target cell, the MS transmits an uplink sequence number status message to the target base station providing a downlink sequence number status for the packet flow, and starts uplink data transmission to the target base station beginning with the next expected uplink packet.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: June 12, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ingemar Backlund, Gunnar Mildh, John Diachina, Lars Tedenvall
  • Patent number: 9992736
    Abstract: A method performed by a wireless device (121) for receiving system information from a network node (110) in a wireless communications network (100) is provided. The wireless device first receives a first system information indicating one or more Public Land Mobile Networks, PLMNs, supported on a frequency carrier by the network node (110). Then, the wireless device determines if the one or more PLMNs indicated in the first system information exclude all PLMN(s) supported by the wireless device (121). When the one or more PLMNs indicated in the first system information does not exclude all PLMN(s) supported by the wireless device (121), then the wireless device receives a second system information comprising the one or more PLMNs supported on the frequency carrier by the network node (110). A wireless device (121) for receiving system information is also provided. Further, a network node and a method therein for transmitting system information are also provided.
    Type: Grant
    Filed: September 7, 2015
    Date of Patent: June 5, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Icaro L. J. da Silva, Gunnar Mildh, Jose Luis Pradas, Johan Rune
  • Patent number: 9980182
    Abstract: Embodiments herein relate e.g. to a method performed by a network node (15,13) for handling data of a wireless device (10) in a communication network (1). The network node (15,13) receives an indication from the wireless device (10), which indication indicates a presence of the wireless device at a second radio access network node (13) holding no context for the wireless device (10). The network node (15,13) identifies a first radio access network node (12) holding context for the wireless device (10) and any buffered data destined for the wireless device (10). The network node (15,13) retrieves from the identified first radio access network node (12), data buffered for the wireless device (10), and forwards the retrieved data to the wireless device (10).
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: May 22, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Jose Luis Pradas, Icaro L. J. da Silva, Gunnar Mildh, Patrik Rugeland, Johan Rune
  • Publication number: 20180139660
    Abstract: A method is performed in a network control entity that manages network connections for a network. The method includes receiving a network attachment request from a network access entity or a user equipment for connecting the user equipment to the network. The method further includes obtaining a network partition ID associated with the UE, the network partition ID identifying a network partition that includes a predetermined group of network entities included in the network. The method also includes transmitting, to a network storage entity, a notification containing the network partition ID.
    Type: Application
    Filed: April 8, 2016
    Publication date: May 17, 2018
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan ROMMER, Henrik BASILIER, Torbjörn CAGENIUS, Gunnar MILDH, Gunnar NILSSON, Lennart NORELL, Göran RUNE, Ann-Christine SANDER