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).

  • Publication number: 20210250824
    Abstract: According to an aspect, there is provided a method of operating a mobile device in a communication network. The method comprises receiving a list of wireless local area network (WLAN) identifiers from the communication network (600).
    Type: Application
    Filed: April 30, 2021
    Publication date: August 12, 2021
    Inventors: Mattias Bergström, Gunnar Mildh, Magnus Stattin
  • Publication number: 20210243832
    Abstract: A method by a network node is provided for handling a re-establishment request. The method includes receiving, from a wireless device, a first request for re-establishment of a connection with the network node in a first cell. The network node determines that a load on the network node exceeds a threshold amount. In response to determining that the load on the network node exceeds the threshold amount, the network node ignores the first request for re-establishment.
    Type: Application
    Filed: May 8, 2019
    Publication date: August 5, 2021
    Inventors: Oumer Teyeb, Gunnar Mildh, Alessio Terzani, Icaro L.J. Da Silva
  • Patent number: 11083035
    Abstract: Methods, wireless device (500) and network node (502) which can be used when resuming a communication session after a period of inactivity of the wireless device (500). The wireless device (500) sends to a network node (502) a resuming request comprising an indication of at least one preferred network slice out of a set of network slices that was used in the communication session before said period of inactivity. Thereby, the network node (502) is able to determine the preferred network slice(s) based on the indication in the resuming request.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: August 3, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Oscar Ohlsson, Gunnar Mildh, Paul Schliwa-Bertling
  • Patent number: 11083040
    Abstract: A user equipment is configured to receive, from a source radio access network, RAN, node with which the user equipment has a connection, a message indicating that the connection is to be suspended and indicating a resume identifier usable by the user equipment to resume the connection after the connection is suspended. While the connection is suspended, the user equipment is configured to transmit to a target RAN node a request to resume the connection. The request includes the resume identifier. The user equipment is also configured to transmit to the target RAN an indication of a public land mobile network, PLMN, with which the resume identifier is associated. Alternatively or additionally, the user equipment is configured to receive a paging message that includes the resume identifier and that indicates the PLMN associated with the resume identifier.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: August 3, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gunnar Mildh, Paul Schliwa-Bertling, Magnus Stattin, Christofer Lindheimer
  • Publication number: 20210235256
    Abstract: A wireless device handles area update reports. The wireless device initiates a radio network area update, RNAU, responsive to detecting that the wireless device has entered a cell not belonging to a radio network area, RNA, configured for the wireless device. The wireless device receives, from the wireless network, a message indicating that the wireless device's attempt to perform the RNAU has been rejected. The message includes or is accompanied by an indication that a wait time value is applicable. Responsive to the message, the wireless device sets a reject wait timer to the wait time value and performs the RNAU upon expiry of the reject wait timer. In some embodiments, the wireless device sets a periodic RNAU timer to the wait time value, responsive to the message, and performs the RNAU upon expiry of the reject wait timer and the periodic RNAU timer.
    Type: Application
    Filed: April 16, 2021
    Publication date: July 29, 2021
    Inventors: Gunnar Mildh, Icaro L.J. da Silva
  • Publication number: 20210235265
    Abstract: A communication system for resuming a connection comprises a user equipment (UE) and network nodes. A first network node is configured to prepopulate a UE context, and send, to a second network node, the UE context. The second network node is configured to receive, from the first network node, the UE context, and send, to a UE, a resume request message including a freshness parameter and the UE context. The UE is configured to receive, from the second network node, a resume request message including the freshness parameter and the UE context, generate an authentication token based on the freshness parameter and the UE context, and send, to the second network node, a resume response message including the authentication token. The communication system provides a freshness parameter and a prepopulated UE context to secure and facilitate resume procedure against replay attacks.
    Type: Application
    Filed: November 16, 2018
    Publication date: July 29, 2021
    Inventors: Magnus STATTIN, Gunnar MILDH, Dung PHAM VAN, Paul SCHLIWA-BERTLING, Icaro L. J. DA SILVA, Karl NORRMAN, Oscar OHLSSON
  • Publication number: 20210235413
    Abstract: A method and a first network node of a wireless network, for handling paging of a wireless device. A Radio Access Network Area. RANA, which is supported by the first network node, is registered in a database by network nodes supporting the RANA, including the first network node. The network nodes that support the RANA are then identified in the database. When it is detected that a wireless device needs to be paged in the RANA, e.g. for receiving data, a paging message is distributed to the identified set of network nodes as an instruction to perform radio transmission of the paging message. Further, which is available to the network nodes throughout the wireless network. Thereby, any network node in the wireless network, such as the first network node, is able to perform distribution of a paging message to all network nodes that support a particular RANA, as registered in the database.
    Type: Application
    Filed: April 12, 2021
    Publication date: July 29, 2021
    Inventors: Johan Rune, Icaro L. J. da Silva, Gunnar Mildh, Jose Luis Pradas
  • Patent number: 11075749
    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: September 10, 2019
    Date of Patent: July 27, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Rolf Blom, Gunnar Mildh, Karl Norrman
  • Publication number: 20210227377
    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 MME, 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 MME is up-to-date based on the message from the UE and the response from the MME. If the UE holds updated UE capabilities the eNodeB can request updated UE capability information from the UE.
    Type: Application
    Filed: April 8, 2021
    Publication date: July 22, 2021
    Inventors: Gunnar Mildh, Ingrid Nordstrand, András Rácz, Magnus Stattin, Pontus Wallentin
  • Patent number: 11071048
    Abstract: A radio device receives an access information table from the cellular network. The access information table comprises parameters of a plurality of configurations for controlling access of the radio device to the cellular network. Further, the radio device receives an identifier from the cellular network. Depending on the identifier, the radio device selects one of the configurations from the access information table. In response to determining that at least one of the received access information table and the received identifier is outdated, the radio device determines, depending on an indicator associated with the selected configuration, whether to perform an access attempt to the cellular network on the basis of the selected configuration.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: July 20, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Icaro L. J. da Silva, Gunnar Mildh, Jose Luis Pradas, Johan Rune
  • Publication number: 20210219193
    Abstract: Methods, systems and network devices for operating a network node to provide dual connectivity in a handover of a user equipment, UE, in a new radio telecommunications system are provided. Methods include sending, from the network node and to a target secondary node, an addition request message to allocate resources for the UE in the handover. Operations include receiving an addition request acknowledgement message from the target secondary node. The addition request acknowledgement message includes a context indication regarding a full radio resource control, RRC, context or a delta RRC context. The delta RRC context includes data that is updated relative to data in a current UE context. Operations include determining, based on context indication, a type of RRC context to provide to the target secondary node.
    Type: Application
    Filed: November 16, 2018
    Publication date: July 15, 2021
    Inventors: Oumer TEYEB, Riikka SUSITAIVAL, Gunnar MILDH, Henning WIEMANN
  • Publication number: 20210219355
    Abstract: A method of operation of a wireless device in a wireless network includes transmitting a first message to a network node and transmitting a second message to the network node. The second message includes a second portion of an identifier associated with the wireless device and a second portion of an access and mobility management (AMF) identifier (ID) in response to the first message including at least a first portion of the identifier associated with the wireless device and at least a first portion of the AMF ID.
    Type: Application
    Filed: May 9, 2019
    Publication date: July 15, 2021
    Inventors: Christofer Lindheimer, Gunnar Mildh, Malik Wahaj Arshad, Icaro L.J. Da Silva, Riikka Susitaival
  • Patent number: 11064417
    Abstract: A node maps end-user bearers to backhaul bearers in an adaptation layer. The node maps a plurality of end-user bearers to backhaul bearers in consideration of QoS classes for the end-user bearers and a distance from the node to a destination relay node for each of the plurality of end-user bearers, such that at least one of the backhaul bearers carries end-user bearers with different QoS classes and different distances to the destination relay node. The distance from the node to the destination relay node for at least one of the end-user bearers may be considered in terms of a number of remaining hops from the node to the destination relay node and/or in terms of an estimated end-to-end delay from the node to the destination relay node.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: July 13, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Oumer Teyeb, Gunnar Mildh, Ajmal Muhammad
  • Publication number: 20210212145
    Abstract: A wireless device (14) transmits, to a radio network node (12), a radio resource control (RRC) connection request (18) that requests the establishment, re-establishment, or resumption of an RRC connection (16). The RRC connection request (18) indicates a type of core network to which the wireless device (14)selects to connect. The wireless device (14) in some embodiments receives a response to the RRC connection request (18), based on the type of core network to which the wireless device (14) selects to connect. For example, the wireless device (14) may receive the response using a protocol stack determined based on the type of core network to which the wireless device (14) selects to connect.
    Type: Application
    Filed: May 21, 2019
    Publication date: July 8, 2021
    Inventors: Oscar Ohlsson, Gunnar Mildh, Malik Wahaj Arshad
  • Publication number: 20210211949
    Abstract: A wireless device configured to acquire network support information associated with a neighbor cell, wherein the network support information indicates that the neighbor cell supports a Stand-Alone (SA) mode of operation and/or a Non-Stand-Alone (NSA) mode of operation; and transmit to a serving network node a report comprising identification information associated with the neighbour cell and the network support information indicating that the neighbor cell supports a SA mode of operation and/or a NSA mode of operation. A serving network node configured to receive a report transmitted by a wireless device, wherein the report comprises identification information associated with the neighbor cell and network support information indicating that the neighbor cell supports a Stand-Alone (SA) mode of operation and/or a Non-Stand-Alone (NSA) mode of operation; and determine, based on the report, a type of interface to establish between the serving network node and the neighbor network node.
    Type: Application
    Filed: January 13, 2021
    Publication date: July 8, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Parisa PAKNIAT, Icaro L. J. DA SILVA, Gunnar MILDH
  • Publication number: 20210211939
    Abstract: Embodiments of the present disclosure include methods, performed by a first node in an integrated access backhaul (IAB) network, for flow control of data transmission from a base station to a plurality of user equipment (UEs) via the IAB network. Such embodiments can include detecting a reduction in data transmission throughput in the first node, and determining that the reduction in data transmission throughput is due to congestion in one or more particular downstream nodes in the IAB network. Such embodiments can also include sending a flow-control message to an upstream node in the IAB network, wherein the flow-control message identifies one or more nodes, in the IAB network, for which a flow-control operation is requested in relation to data transmitted from the upstream node. Other embodiments include complementary methods performed by a second node (e.g., upstream from the first node) and IAB nodes configured to perform such methods.
    Type: Application
    Filed: July 16, 2019
    Publication date: July 8, 2021
    Inventors: Oumer Teyeb, Gunnar Mildh, Ajmal Muhammad, Jose Luis Pradas
  • Publication number: 20210211945
    Abstract: A UE and a method for resuming a radio connection in a communications network comprising a first RAT and a different second RAT. The UE operates in a first cell served by the first RAT. When a connection with the first cell is suspended, the UE performs a re-selection to a second cell served by the second RAT, and triggers RRC resume in the second cell. The UE receives a first set of parameters associated with the first cell, which first set comprises at least one parameter identifying the UE or the first cell. Further, the UE receives a second set of parameters associated with the second cell, which second set comprises at least one parameter identifying the UE or the second cell. The UE determines a security token based on the first and second sets, and transmits the security token to the second cell.
    Type: Application
    Filed: September 18, 2019
    Publication date: July 8, 2021
    Inventors: Patrik RUGELAND, Gunnar MILDH, Icaro L. J. Da Silva
  • Patent number: 11057823
    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: Grant
    Filed: August 14, 2015
    Date of Patent: July 6, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Icaro L. J. Da Silva, Gunnar Mildh, Jose Luis Pradas, Johan Rune
  • Patent number: 11051355
    Abstract: An access node (620) of the cellular network determines a correlation of an identifier of a user equipment (610) with an entry of a Pending Interest Table maintained by an Information Centric Networking node (670). The Pending Interest Table comprises an entry for each data object having a pending Information Centric Networking request (801) at the Information Centric Networking node (670). Based on the correlation, the access node (620) controls a connection of the user equipment (610) with the cellular network. This may involve deciding whether to release the user equipment (610) to idle mode or paging of the user equipment (610).
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: June 29, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gunnar Mildh, Hans Eriksson, Kim Laraqui, Neiva Lindqvist, Ala Nazari, Börje Ohlman, Ioanna Pappa, Dinand Roeland, Johan Rune, Patrik Sellstedt
  • Patent number: 11051354
    Abstract: Systems, methods and apparatus are disclosed for user equipment and/or network nodes. An example method performed by a user equipment includes establishing a connection to a Radio Access Network via a network node. The connection provides communications between the UE and the network node using a Signaling Radio Bearer configured with a New Radio (NR) Packet Data Convergence Protocol configuration. The user equipment receives a Radio Resource Control connection re-establishment message and re-establishes the connection to the RAN. The re-establishing includes applying a Long-Term Evolution PDCP configuration to the SRB.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: June 29, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Oumer Teyeb, Gunnar Mildh