Patents by Inventor Christofer Lindheimer

Christofer Lindheimer 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: 20230100843
    Abstract: A method, network node and user equipment (UE) for inter-frequency redirection via paging are disclosed. According to one aspect, a method in the UE includes receiving a paging message from the network node on a first frequency, the paging message directing the UE to switch from the first frequency to a second frequency, the first frequency being associated with a first slice and the second frequency being associated with a second slice; and performing one of a radio resource control, RRC, resume and an RRC setup procedure on the second frequency. According to another aspect, a method in a network node include generating and sending the paging message.
    Type: Application
    Filed: March 31, 2021
    Publication date: March 30, 2023
    Inventors: Paul SCHLIWA-BERTLING, Pradeepa RAMACHANDRA, Christofer LINDHEIMER
  • Patent number: 11564268
    Abstract: A method for establishing a radio resource control connection between a first wireless device and a radio network node, comprises transmitting a request for a radio resource control connection towards the radio network node from the first wireless device to a second wireless device. Then, the second wireless device forwards the request for a radio resource control connection towards the radio network node to the radio network node. The forwarding by the second wireless device uses an already established radio resource control signaling connection between the second wireless device and the radio network node.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: January 24, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Pontus Wallentin, Mats Folke, Christofer Lindheimer, Patrik Rugeland
  • Publication number: 20220408518
    Abstract: Systems and methods are disclosed herein related simultaneous registration of wireless communication device having multiple Subscriber Identity Modules (SIMs) with two or more networks. In one embodiment, a method performed by a wireless communication device having multiple SIMs comprises registering with a first network associated with a first SIM and registering with a second network associated with a second SIM such that the wireless communication device is simultaneously registered with both the first network and the second network. The method further comprises providing, to a network node associated with the first network, capability information for the wireless communication device that indicates less than full capabilities of the wireless communication device. In this manner, the wireless communication device ensures that it will have sufficient resources to maintain simultaneous connections to both the first and second network.
    Type: Application
    Filed: November 3, 2020
    Publication date: December 22, 2022
    Inventors: Mattias Bergström, Christofer Lindheimer, Magnus Stattin, Paul Schliwa-Bertling
  • Publication number: 20220408519
    Abstract: A method, UE, and computer programs are provided where the UE has multiple universal subscriber identity modules. Information is received from a first PLMN indicating there is one of mobile terminating (MT) signaling or data in the first PLMN while the UE is in a second PLMN. Responsive to receiving the information, a service request is sent to an AMF node of the second PLMN. A radio resource control (RRC) connection release is received from a RAN node in response to sending the service request. Responsive to receiving the RRC connection release, the second PLMN is left to be in the first PLMN.
    Type: Application
    Filed: September 7, 2020
    Publication date: December 22, 2022
    Inventors: Qian CHEN, Christofer LINDHEIMER, Stefan ROMMER, Paul SCHLIWA-BERTLING, Magnus STATTIN, Alessio TERZANI
  • Publication number: 20220330195
    Abstract: A method performed by a UE having multiple USIMs is provided. The method includes registering the UE in a first PLMN. The method includes moving the UE into a CM-connected state in the first PLMN. The method includes setting up a PDU session in the first PLMN. The method includes using a DNS, via the PDU session in the first PLMN, to select a N3IWF in a second PLMN. The method includes accessing the N3IWF via IP connectivity provided by the first PLMN and initiating a registration procedure with an AMF node in the second PLMN using the N3IWF, the UE indicating that the AMF node shall only use N3IFW for NAS notifications after registration. The method includes completing the registration procedure to register with the second PLMN. The method includes setting up a PDU session with a SMF node in the second PLMN without user plane resources.
    Type: Application
    Filed: October 6, 2020
    Publication date: October 13, 2022
    Inventors: Qian CHEN, Christofer LINDHEIMER, Stefan ROMMER, Paul SCHLIWA-BERTLING, Magnus STATTIN, Alessio TERZANI
  • Patent number: 11457398
    Abstract: A method performed by a user equipment, UE, is disclosed. The method comprises determining (402) in response to an event (401) that triggers the UE to perform an access request to a radio access network, RAN, an access category to apply. The UE performs a barring check (403), applying the access category. Upon determining that access is not barred based on the access category, the UE sends (405) the access request to a network node in the RAN, the access request including the access category. The network node decides whether to accept or reject the access request based on the access category.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: September 27, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Christofer Lindheimer, Pontus Wallentin
  • Publication number: 20220217811
    Abstract: Systems, methods, and apparatus for handling communications relating to suspending a user equipment in a radio access network (RAN) are disclosed. An example method includes the user equipment receiving a radio resource control (RRC) release message from a network node. The user equipment determines that the RRC release message includes a suspend configuration field. The user equipment applies delta signalling corresponding to a suspend configuration indicated by the suspend configuration field and transitions to an inactive state.
    Type: Application
    Filed: March 25, 2022
    Publication date: July 7, 2022
    Inventors: Christofer Lindheimer, Malik Wahaj Arshad, Icaro L.J. da Silva, Gunnar Mildh, Riikka Susitaival
  • Publication number: 20220201592
    Abstract: Methods of operating a network node in a cell of a wireless communication network are provided. Methods include broadcasting, to a user equipment, UE, a first network list that includes multiple public network identifiers that correspond to public networks in the cell, and broadcasting, to the UE, a second network list that includes multiple non-public network, NPN, identifiers that correspond to NPNs in the cell. Each of the public network identifiers and NPN identifiers includes multiple data fields. The network identifiers include a mobile country code, MCC, a mobile network code, MNC and at least one of a control access group, CAG, and a network identifier, NID.
    Type: Application
    Filed: March 27, 2020
    Publication date: June 23, 2022
    Inventors: Christofer LINDHEIMER, Mattias BERGSTRÖM, Mats BUCHMAYER, Peter HEDMAN, Oscar OHLSSON, Paul SCHLIWA-BERTLING, Ivo SEDLACEK, Alexander VESELY
  • Patent number: 11317463
    Abstract: Systems, methods, and apparatus for handling communications relating to suspending a user equipment in a radio access network (RAN) are disclosed. An example method includes receiving, by a user equipment that is operating in a connected state, a radio resource control (RRC) release message. The user equipment determines, based on an indication in the RRC release message, whether to suspend the user equipment to an inactive state or an idle state, the indication comprising a presence or absence a suspend configuration field in the RRC release message. Responsive to determining that the indication is to suspend to an inactive state, the user equipment transitions to the inactive state.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: April 26, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Christofer Lindheimer, Malik Wahaj Arshad, Icaro L. J. Da Silva, Gunnar Mildh, Riikka Susitaival
  • Publication number: 20220109746
    Abstract: Methods performed by base stations and wireless devices for controlling the transmission and reception of capability information are disclosed. A method performed by a wireless device comprises: receiving an indication of one or more protocols that are supported by the network for transmission of capability information; responsive to the wireless device supporting at least one of the one or more protocols for transmission of capability information, selecting a first protocol that is supported by the wireless device from the at least one of the one or more protocols, and transmitting capability information associated with the wireless device to the base station according to the first protocol.
    Type: Application
    Filed: February 10, 2020
    Publication date: April 7, 2022
    Inventors: Christofer Lindheimer, Tomas Frankkila, Malik Wahaj Arshad
  • Patent number: 11297535
    Abstract: Embodiments presented in this disclosure relate to methods and apparatuses (such as Access Points (AP's), evolved NodeB's (eNB's), etc.) for use in aggregation, or integration, between a Wireless Wide Area Network (WWAN) and a Wireless Local Area Network (WLAN). In one embodiment, an eNB decides that an aggregation between the WWAN and the WLAN is to be performed for at least one bearer of one or more bearers associated with a specific UE. Next, the eNB identifies which one(s) of the at least one bearer of the specific UE that is/are to be aggregated between the WWAN and the WLAN. Also, the eNB schedules each one of the at least one bearer identified to be aggregated between the WWAN and the WLAN.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: April 5, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Jari Vikberg, Niklas Johansson, Christofer Lindheimer, Magnus Stattin, Oumer Teyeb
  • Publication number: 20220095412
    Abstract: Embodiments include methods in a wireless device. Such methods include, while the wireless device is in an RRC inactive state with respect to a wireless communication network, determining that updates are needed for the wireless device's access stratum (AS) and non-access stratum (NAS). For example, the AS update can be a RAN notification area update (RNAU) and the NAS update can be a tracking area update (TAU). Such methods include transmitting, to the wireless communication network, a request to resume an RRC connected state with the wireless communication network. The request includes a cause indicator that indicates mobility signaling as a cause for resuming the RRC connected state. Such methods also include receiving, from the wireless communication network, a response to the request to resume the RRC connected state and initiating the NAS update based on the response. Other embodiments include wireless devices configured to perform such methods.
    Type: Application
    Filed: December 8, 2021
    Publication date: March 24, 2022
    Inventors: Christofer Lindheimer, Icaro L. J. Da Silva, Gunnar Mildh, Paul Schliwa-Bertling
  • Publication number: 20220086712
    Abstract: Embodiments include methods for a network node of a 3GPP RAN. Such methods include determining a configuration that enables a UE to steer the UE's traffic between the 3GPP RAN and a WLAN without receiving a traffic steering command from the 3GPP RAN. The configuration includes a forward traffic steering configuration comprising a first plurality of thresholds/conditions for which the UE, when connected to 3GPP RAN, can initiate steering at least some of the UE's traffic from 3GPP RAN to WLAN; and a backward traffic steering configuration comprising a second plurality of thresholds/conditions for which the UE, when connected to WLAN, can initiate steering at least some of the UE's traffic from WLAN to 3GPP RAN. The backward traffic steering configuration includes threshold(s)/condition(s) based on different values of a same parameter as threshold(s)/condition(s) of the forward traffic steering configuration. The configuration is sent to the UE in a single message.
    Type: Application
    Filed: November 29, 2021
    Publication date: March 17, 2022
    Inventors: Oumer Teyeb, Ruth Guerra, Christofer Lindheimer, Filip Mestanov, Elena Myhre, Håkan Persson, Magnus Stattin, Mattias Bergström
  • Publication number: 20220078876
    Abstract: Embodiments include methods in a wireless device. Such methods include, while the wireless device is in a Radio Resource Control (RRC) inactive state with respect to a wireless communication network, determining that a Radio Access Network Notification Area Update (RNAU) is needed. Such methods include evaluating whether there is any cause, other than the determined need for the RNAU, for resuming an RRC connected state with the wireless communication network and transmitting, to the wireless communication network, an RRC Resume Request message comprising a cause indicator indicating a cause for resuming the RRC connected state. The cause indicator indicates an RNAU when there is no cause for resuming the RRC connected state other than the determined need for the RNAU and otherwise indicates a cause other than an RNAU. Other embodiments include wireless devices configured to perform such methods and computer-readable media that store instructions embodying such methods.
    Type: Application
    Filed: November 15, 2021
    Publication date: March 10, 2022
    Inventors: Christofer Lindheimer, Icaro L. J. Da Silva, Gunnar Mildh, Paul Schliwa-Bertling
  • Publication number: 20220014902
    Abstract: A method performed by a network node, for handling User Equipment, UE, capabilities of a UE in a wireless communications network is provided. The network node sends (501) to the AMF node (130), a first indication indicating whether or not the network node (110) has capabilities to store UE capabilities associated with the UE capability ID. The network node receives (502) from an AMF node, a second indication indicating whether or not UE capabilities associated with a capability identity of the UE, UE capability ID, are UE available in the AMF node. The network node decides (503) whether explicit UE capabilities associated with the UE capability ID shall be retrieved from the UE or the AMF node based on the received first and second indication.
    Type: Application
    Filed: October 31, 2019
    Publication date: January 13, 2022
    Inventors: Christofer Lindheimer, Paul Schliwa-Bertling, Mikael Wass
  • Publication number: 20220007176
    Abstract: The disclosure provides a method performed by a wireless device for providing capability information. The method comprises: receiving a first message from a base station, the first message comprising an indication of a capability filter; utilizing the capability filter to generate a filtered set of capabilities of the wireless device; applying a hash function to the filtered set of capabilities to generate a hash value; and transmitting a second message to the base station, the second message comprising the hash value.
    Type: Application
    Filed: February 13, 2020
    Publication date: January 6, 2022
    Inventors: Christofer LINDHEIMER, Mikael WASS, Ylva TIMNER, Alessio TERZANI, Malik WAHAJ ARSHAD, Paul SCHLIWA-BERTLING, Henning WIEMANN, Mattias BERGSTRÖM
  • Patent number: 11219084
    Abstract: According to an aspect, a wireless device determines, while in an RRC Inactive state, that a Radio Access Network Notification Area Update, RNAU, is needed. The wireless device further evaluates whether there is any other cause for resuming an RRC connected state, in addition to the need for the RNAU. The wireless device transmits an RRC Resume Request message to the network, in response to the determining. The RRC Resume Request message includes a cause indicator indicating an RNAU as a cause for resuming a RRC Connected state in the event that said evaluating identifies no other cause for resuming the RRC connected state.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: January 4, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Christofer Lindheimer, Icaro L. J. da Silva, Gunnar Mildh, Paul Schliwa-Bertling
  • Patent number: 11218928
    Abstract: There is provided a method in a node in a first access network, the method comprising sending (710) a first set of thresholds and/or conditions to a terminal, the first set of thresholds and/or conditions defining situations in which (a) the terminal should send a measurement report to the first access network with respect to a second access network, or (b) the terminal should connect to the second access network and/or steer at least some traffic to the second access network; and sending (720) a second set of thresholds and/or conditions to the terminal, the second set of thresholds and/or conditions defining situations in which, (c) the terminal should send a measurement report to the first access network regarding at least the second access network or (d) the terminal should disconnect from the second access network and/or connect to the first access network and/or steer at least some traffic to the first access network.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: January 4, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Oumer Teyeb, Ruth Guerra, Christofer Lindheimer, Filip Mestanov, Elena Myhre, Håkan Persson, Magnus Stattin, Mattias Bergström
  • Patent number: 11212744
    Abstract: Systems and methods for cell selection, reselection and camping are provided. A network node transmits cell broadcast information including a cell reservation indication and a cell reservation exception indication. A wireless device receives cell broadcast information and determines if the cell is reserved for selection. The cell can be selected, and camped on, in accordance with the wireless device being associated with the cell reservation exception indication.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: December 28, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Christofer Lindheimer, Pontus Wallentin
  • Publication number: 20210360486
    Abstract: According to a first aspect, it is provided a method performed in a network node of a cellular communication network. The method comprises the steps of: obtaining an indicator to secure a traffic availability for a connection, wherein the traffic availability is related to how likely the connection will remain operable; determining whether the network node can secure resources to support the traffic availability; allocating resources for the connection when resources can support the traffic availability; and transmitting a positive response when the network node can secure resources to support the traffic availability. Corresponding network nodes, wireless nodes, computer programs and computer program products are also provided.
    Type: Application
    Filed: July 29, 2021
    Publication date: November 18, 2021
    Inventors: Christofer Lindheimer, Jari Vikberg