Patents by Inventor Paul Schliwa-Bertling

Paul Schliwa-Bertling 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: 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: 20210227462
    Abstract: The disclosure provides methods in a network node for a telecommunications network. In one method, the network node operates as a primary network node for a wireless terminal configured with dual connectivity, and the method comprises: receiving a message indicating that a secondary network node, which provides user plane connectivity for the wireless terminal, has no data to transmit to the wireless terminal; and based at least in part on the received message, configuring the wireless terminal in an inactive mode.
    Type: Application
    Filed: April 8, 2021
    Publication date: July 22, 2021
    Inventors: Markus Drevö, Håkan Axelsson, Stefan Johansson, Paul Schliwa-Bertling
  • Publication number: 20210219264
    Abstract: Embodiments of a method performed by a radio access node for network scheduled User Equipment (UE) transition to connected mode and corresponding embodiments of a radio access node are disclosed. In some embodiments, a method performed by a radio access node comprises receiving: (a) a notification request from an Access and Mobility Management Function (AMF) to retrieve reachability information for a UE or (b) downlink data to be communicated to the UE. The method further comprises, upon receiving either (a) or (b), determining that the UE is in an inactive state and is currently unreachable. The method further comprises sending information to the AMF that notifies the AMF that the UE is currently unreachable. The information comprises information that indicates that RAN paging of the UE is scheduled or scheduling assistance information. Embodiments of method performed by an AMF and corresponding embodiments of an AMF are also disclosed.
    Type: Application
    Filed: May 15, 2019
    Publication date: July 15, 2021
    Inventors: Qian Chen, Paul Schliwa-Bertling, Hans Bertil Rönneke, Roland Gustafsson
  • Patent number: 11064457
    Abstract: According to one aspect of the present disclosure, a method of paging policy differentiation in a 5G telecommunications network is provided. A User Plane Function (UPF) receives downlink data for a target User Equipment (UE), and provides a data notification to a Session Management Function (SMF), the data notification comprising a Quality of Service (QoS) indicator, which the SMF uses to determine QoS Information (QoSI) that is sent to an Access Management Function (AMF). The AMF determines whether a paging policy selection should be performed by the AMF or by a Radio Access Node (RAN) that serves the target UE: if by the AMF, the AMF selects a paging policy based on the QoSI and sends a paging message to the RAN, which pages the UE; if by the RAN, the AMF provides paging policy information to the RAN, which selects a paging policy and pages the UE accordingly.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: July 13, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Aldo Bolle, Qian Chen, Paul Schliwa-Bertling, Stefan Rommer
  • Publication number: 20210211923
    Abstract: According to certain embodiments, a method by a wireless device is provided for mapping of application data packets onto bearers. The method includes associating at least one tag value with a bearer upon establishment of the bearer. A tag is attached to a packet when passing the packet to a lower layer. The packet is mapped onto the bearer, and a path to transmit the packet is selected.
    Type: Application
    Filed: February 15, 2021
    Publication date: July 8, 2021
    Inventors: Pontus WALLENTIN, Paul SCHLIWA-BERTLING, Johnny KAROUT
  • Publication number: 20210204355
    Abstract: Methods may be provided to operate a network node supporting dual connectivity communication with a wireless terminal as a main network node in cooperation with a secondary network node. Dual connectivity communication with the wireless terminal may be provided in cooperation with the secondary network node. Responsive to deciding to suspend the dual connectivity communication with the wireless terminal, a connection release message may be transmitted to the wireless terminal, a suspension indication message may be transmitted to the secondary network node, the dual connectivity communication with the wireless terminal may be suspended. Related methods may be provided to operate secondary network nodes and wireless terminals.
    Type: Application
    Filed: March 20, 2018
    Publication date: July 1, 2021
    Inventors: Oumer TEYEB, Markus DREVÖ, Paul SCHLIWA-BERTLING, Osman Nuri Can YILMAZ
  • Publication number: 20210195509
    Abstract: A communication device, network node and methods therein in for handling network slices in a wireless communication network are disclosed. The communication device encrypts Network Slice Selection Assistance information, NSSAI, using public key cryptography and includes the encrypted NSSAI in a Non Access Stratum, NAS, registration request. Then the communication device sends a Radio Resource Control, RRC, request to the network node including the NAS registration request. The network node receives the RRC connection request from the communication device and selects a network function based on information in the RRC connection request. The network node forwards the NAS registration request to the network function and forwards to the communication device a NAS registration response received from the network function after the network function decrypting the NSSAI using a PLMN private key.
    Type: Application
    Filed: June 4, 2018
    Publication date: June 24, 2021
    Inventors: Oscar Ohlsson, Peter HEDMAN, Prajwol kumar NAKARMI, Paul SCHLIWA-BERTLING
  • Publication number: 20210185585
    Abstract: System comprising a mobility management entity, MME, a first Radio Access node, RAN (eNB) offering Long Term Evolution, LTE, access, and a second radio access node, RAN (gNB) offering New Radio, NR, access; a user entity, UE, supporting both Long Term Evolution, LTE, and New Radio, NR, Radio Access Technology, RAT.
    Type: Application
    Filed: August 13, 2019
    Publication date: June 17, 2021
    Inventors: Qian Chen, Juying Gan, Stefan Rommer, Ann-Christine Sander, Paul Schliwa-Bertling
  • Patent number: 11032759
    Abstract: The proposed technology relates to accessing wireless networks and in particular it relates to utilizing a second wireless network for enabling a wireless device, being unable to access a first wireless network, to access a first wireless network. One aspect of the proposed technology relates to a method performed in a wireless device being unable to access a first wireless network. The method comprises accessing a second wireless network and sending information indicating an inability to access the first wireless network to the second wireless network, for further distribution to the first wireless network. Thereby, the proposed method enables the first wireless network to reconfigure at least one access procedure parameter in the first wireless network in order to improve the conditions for the wireless device when accessing the first wireless network. The method further comprises accessing the first wireless network utilizing at least one reconfigured access procedure.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: June 8, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Andreas Bergström, Martin Hessler, Eric Nordström, Paul Schliwa-Bertling
  • Patent number: 11032701
    Abstract: The present disclosure generally relates to the field of security context setup. More specifically, the present disclosure relates to techniques of supporting security context setup in a wireless communication network. A method embodiment relates to supporting security context setup in a wireless communication network, the method comprising initiating (S304), by a radio access network (RAN) element of the wireless communication network, Access Stratum (AS) security context setup for a first Radio Access Technology (RAT) and a second RAT in a common signaling procedure.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: June 8, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Osman Nuri Can Yilmaz, Icaro L. J. Da Silva, Karl Norrman, Paul Schliwa-Bertling, Stefan Wager
  • Patent number: 11032695
    Abstract: Methods and apparatus are provided for transferring management of one or more wireless devices from being managed by a first core network node, to instead be managed by a second core network node. The method comprises obtaining information identifying the one or more wireless devices, wherein the information comprises a first group identifier identifying a first group associated with the one or more wireless devices; and transferring context data from the first core network node to the second core network node, wherein the context data relates to the one or more wireless devices for use in managing the one or more wireless devices.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: June 8, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Markus Drevö, Paul Schliwa-Bertling, Alexander Vesely
  • Publication number: 20210168697
    Abstract: A method performed by a User Equipment (UE) for handling access barring in a wireless communications network is provided. The UE obtains (1201) barring instructions from a network node. The UE further performs (1204) access barring check. When the outcome of the access barring check is that the UE is not authorized, the UE determines (1205) how to proceed based on the barring instructions.
    Type: Application
    Filed: March 11, 2019
    Publication date: June 3, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Pontus WALLENTIN, Jens BERGQVIST, Paul SCHLIWA-BERTLING
  • Patent number: 11013037
    Abstract: Method of performing a random access procedure between a User Equipment, UE, and a radio access network, wherein two access nodes comprise different sets of signature sequences, wherein said signature sequences are used, by said access nodes, to differentiate requests coming from different UEs, said method comprising the steps of receiving a random access request from said UE, wherein said random access request comprises a signature sequence, determining that said random access request is intended for said first radio access node based on said signature sequence comprised by said request, receiving, from a second access node, said random access request, thereby indicating that said second radio access node has also received said random access request from said UE, and sending a response based on said received random access request from said UE and based on said random access request received from said second radio access node.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: May 18, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Rasmus Axén, Mehdi Amirijoo, Håkan Axelsson, Walter Müller, Paul Schliwa-Bertling
  • Patent number: 11006320
    Abstract: A Radio Network Node, RNN, (106) and a method therein for load balancing in a wireless communications network (100). The RNN is configured to communicate with a wireless device (108) supporting both normal coverage and extended coverage. The RNN and the wireless device are operating in the wireless communications network. The RNN determines an indication informing the wireless device that it, when in normal coverage, is to monitor one of a downlink legacy resource and an extended coverage resource for information and/or is to use one of an uplink legacy resource and an extended coverage resource when accessing the wireless communications network. Further, the RNN transmits the indication to the wireless device.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: May 11, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jens Bergqvist, Olof Liberg, Paul Schliwa-Bertling, Mårten Sundberg
  • Patent number: 11006359
    Abstract: The disclosure provides methods in a network node for a telecommunications network. In one method, the network node operates as a primary network node for a wireless terminal configured with dual connectivity, and the method comprises: receiving a message indicating that a secondary network node, which provides user plane connectivity for the wireless terminal, has no data to transmit to the wireless terminal; and based at least in part on the received message, configuring the wireless terminal in an inactive mode.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: May 11, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Markus Drevö, Håkan Axelsson, Stefan Johansson, Paul Schliwa-Bertling
  • Publication number: 20210127254
    Abstract: A method of operating an Access and Mobility Management Function (AMF) of a communications system that includes an access node (AN) configured to communicate through a wireless air interface with user equipments (UEs) and that has a Session Management Function (SMF), is provided. The method includes receiving an indication of a Max Data Radio Bearer Integrity Protection, DRB-IP, rate indicating a maximum computational capacity of the UE to process DRBs that have integrity protection during Packet Data Unit (PDU) sessions. A PDU session establishment request NAS message is received from the UE for establishing a PDU session. A PDU session create message is communicated toward the SMF. A SMF message is received that contains an indication of an allocated DRB-IP rate for DRBs that are to be integrity protected for a PDU session being established.
    Type: Application
    Filed: April 5, 2019
    Publication date: April 29, 2021
    Inventors: Noamen BEN HENDA, Peter HEDMAN, Paul SCHLIWA-BERTLING, Monica WIFVESSON
  • Patent number: 10979998
    Abstract: Embodiments herein relate to a method performed by a radio network node of a communication network. The communication network comprises a first set of functionalities belonging to a first network slice of a first core network node, and a second set of functionalities belonging to a second network slice of a second core network node or the first core network node. The radio network node obtains paging identities comprising first and second paging identities of a wireless device; receives a paging indication for the wireless device from the second network slice; initiates a matching process for matching the second paging identity in the paging indication to the paging identities for locating context of the wireless device; and pages, upon a match of the matching process, the wireless device, for communication with the second network slice, using the context.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: April 13, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Jari Vikberg, Angelo Centonza, Gunnar Mildh, Alexander Pantus, Paul Schliwa-Bertling, Oscar Zee
  • Patent number: 10973074
    Abstract: According to certain embodiments, a method (400) by user equipment (UE) (300) is provided for avoiding bearer state mismatch that includes storing, by the UE, a passive context for use in resuming a connection with a network node (600). While the UE is in an inactive state, the UE locally deactivates at least one radio bearer. The UE signals, to the network node, an indication that the at least one radio bearer has been deactivated locally and the network node consequently modifies the stored bearer context.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: April 6, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Magnus Stattin, Paul Schliwa-Bertling, Mikael Wass
  • Patent number: 10973077
    Abstract: A method performed by a wireless communication device for monitoring for a paging message from a core network node in a wireless communications network. The wireless communication device monitors (304) for the paging message at one or more paging occasions during a time period for monitoring paging. The start of the time period is based on an instant of time when the wireless communication device registers to the core network node.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: April 6, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Kai-Erik Sunell, Peter Hedman, Håkan Palm, Paul Schliwa-Bertling, Riikka Susitaival, Martin Van Der Zee, Emre Yavuz
  • Publication number: 20210099857
    Abstract: The present disclosure is directed to method in a mobility management node and such a node for delivering data to a wireless communication device (WCD) served by the mobility management node, operating in a communication network comprising a network entity (NE) and a radio access network (RAN) node serving the WCD, the method comprises: obtaining capability information indicating whether the RAN node supports acknowledgement of a successful delivery of data to the WCD; receiving a data message sent by the NE comprising user data intended for the WCD; sending a control plane message comprising the user data to the RAN node for further delivery to the WCD; sending a response to the NE indicating the outcome of the data delivery.
    Type: Application
    Filed: November 20, 2020
    Publication date: April 1, 2021
    Inventors: Hans Bertil Rönneke, Peter Hedman, Paul Schliwa-Bertling