Patents by Inventor Oscar OHLSSON

Oscar OHLSSON 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: 20250151162
    Abstract: The present disclosure relates to telecommunications. In one of its aspects, the disclosure concerns a method performed by a User Equipment for handling Packet Data Convergence Protocol (PDCP) Service Data Units (SDUs) when performing a Dual Active Protocol Stack (DAPS) handover of at least one radio bearer from a source access node to a target access node in a wireless communications network. The method comprises obtaining a trigger to perform the handover and establishing a radio connection for the at least one radio bearer with the target access node. An uplink transmission of PDCP SDUs is switched from the source to the target access node over the established radio connection. A radio connection with the source access node is released and a PDCP status report is transmitted to the target access node for each configured radio bearer. The respective PDCP status report indicates PDCP Sequence Numbers (SNs) of missing PDCP SDUs.
    Type: Application
    Filed: January 9, 2025
    Publication date: May 8, 2025
    Inventors: Pontus Wallentin, Johan Rune, Oscar Ohlsson, Claes-Göran Persson
  • Patent number: 12262438
    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: Grant
    Filed: September 6, 2023
    Date of Patent: March 25, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Oscar Ohlsson, Gunnar Mildh, Malik Wahaj Arshad
  • Patent number: 12238590
    Abstract: A method for a handover procedure comprises establishing a connection with a source network node of a first core network; receiving a radio resource control (RRC) message including an information element, wherein the information element indicates a second core network associated with a target network node; applying security parameters based on the second core network indicated in the information element; and performing a handover toward the target network node using the applied security parameters. The method provides an indication in RRC connection reconfiguration procedure to indicate the UE the core network of the target network node, so that the UE may recognize that this is an inter-system handover and apply corresponding security parameters for performing the handover without additional signaling.
    Type: Grant
    Filed: January 1, 2024
    Date of Patent: February 25, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Patrik Rugeland, Lian Araujo, Oscar Ohlsson, Malik Wahaj Arshad
  • Patent number: 12219647
    Abstract: Systems and methods relating to resuming a suspended connection of a wireless device in a wireless system are disclosed. In some embodiments, a method of operation of a wireless device includes receiving, from a wireless network, a first message that indicates to suspend a connection between the wireless device and the wireless network. Responsive to receiving the first message, the wireless devices stores a wireless device context and enters a suspended mode of operation. Upon an occurrence of a triggering event, the wireless device transmits, to the wireless network, a second message that requests to resume the connection between the wireless device and the wireless network, wherein the second message includes a resume identifier having an identifier of a network node and an identifier of the wireless device. The wireless device receives, from the wireless network, a contention resolution identity Medium Access Control (MAC) control element that includes a portion of the second message.
    Type: Grant
    Filed: May 1, 2023
    Date of Patent: February 4, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Oscar Ohlsson, Magnus Stattin
  • Patent number: 12200478
    Abstract: The present disclosure relates to telecommunications. In one of its aspects, the disclosure concerns a method performed by a User Equipment for handling Packet Data Convergence Protocol (PDCP) Service Data Units (SDUs) when performing a Dual Active Protocol Stack (DAPS) handover of at least one radio bearer from a source access node to a target access node in a wireless communications network. The method comprises obtaining a trigger to perform the handover and establishing a radio connection for the at least one radio bearer with the target access node. An uplink transmission of PDCP SDUs is switched from the source to the target access node over the established radio connection. A radio connection with the source access node is released and a PDCP status report is transmitted to the target access node for each configured radio bearer. The respective PDCP status report indicates PDCP Sequence Numbers (SNs) of missing PDCP SDUs.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: January 14, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Pontus Wallentin, Johan Rune, Oscar Ohlsson, Claes-Göran Persson
  • Publication number: 20240389152
    Abstract: A method performed by a first wireless device (131). The method is for handling access to a wireless communications network (100). The first wireless device (131) sends (403) a first message to a network node (110) as a part of a random access procedure to access the wireless communications network (100). The first wireless device (131) has one or more first features that are limited with respect to one or more second features of one or more second wireless devices (132). The sending (403) is performed according to one or more first parameters. The one or more first parameters are different than one or more second parameters permitted to be used in the wireless communications network (100) by the one or more second wireless devices (132) when performing random access.
    Type: Application
    Filed: May 11, 2021
    Publication date: November 21, 2024
    Inventors: Andreas Höglund, Oscar Ohlsson
  • Patent number: 12137379
    Abstract: A method of operating a wireless device (300) is described. The method includes providing (1001) a connection with a source access node. The method also includes receiving (1005) a handover command from the source access node while providing the connection with the source access node. The method also includes establishing (1009) a connection with a target access node responsive to receiving the handover command. The method further includes transmitting (1019) uplink data to the source access node after establishing the connection with the target access node. Related wireless devices are also discussed.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: November 5, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Oscar Ohlsson, Pontus Wallentin, Johan Rune, Julien Muller, Alexander Vesely
  • Patent number: 12127109
    Abstract: A method for decoding PLMN information comprises receiving a message comprising PLMN information for a plurality of cells and determining PLMN information from the message for a first group of cells that comprises at least one cell, each cell of the first group of cells associated with a first core network type. The method further comprises determining PLMN information from the message for a second group of cells that comprises at least one cell, each cell of the second group of cells associated with a second core network type. At least one cell is a part of the first group of cells and the second group of cells. The PLMN information for the at least one cell in the first group of cells and the second group of cells is provided only once.
    Type: Grant
    Filed: May 4, 2023
    Date of Patent: October 22, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Oscar Ohlsson, Christofer Lindheimer, Malik Wahaj Arshad
  • Publication number: 20240340728
    Abstract: The invention refers to a method, in a wireless device operating in a wireless communication network, the method comprising: receiving, from a source node, a conditional handover command, the conditional handover command including or being associated with a triggering condition for execution of handover to a target cell or target beam; detecting, that the triggering condition is met; if a conditional handover configuration is not yet completed, executing the handover to the target cell or beam without sending a message confirming completion of a conditional handover configuration to the source node, and otherwise sending the message confirming completion of the conditional handover configuration to the source node; the invention further relates to a corresponding wireless device.
    Type: Application
    Filed: June 19, 2024
    Publication date: October 10, 2024
    Inventors: Oscar Ohlsson, Cecilia EklÖf, Mattias BergstrÖm, Walter Müller
  • Publication number: 20240306076
    Abstract: Embodiments include methods for a user equipment (UE) operating in a wireless network. Such methods include, while operating in a non-connected state in the wireless network, obtaining system information (SI) broadcast in each of a plurality of cells visited by the UE and, for each of the visited cells, determining one or more SI hash values for the SI broadcast in the visited cell. Such methods also include sending, to a network node in the wireless network, at least a portion of the determined SI hash values as mobility history information (MHI). Other embodiments include complementary methods for a network node, as well as UEs and network nodes configured to perform such methods.
    Type: Application
    Filed: March 10, 2022
    Publication date: September 12, 2024
    Inventors: Mattias Bergström, Oscar Ohlsson, Pradeepa Ramachandra
  • Publication number: 20240305978
    Abstract: According to an exemplary embodiment, there is provided a method of operating a terminal device. The method includes operating the terminal device in a connected state with respect to the communication network. The method further includes receiving a first signal from a first radio access node in the communication network indicating that the connected state is to be suspended, the first signal having information for use in determining a first key for encrypting data to be sent between the terminal device and the first radio access node or another radio access node in the communication network if the connected state is resumed.
    Type: Application
    Filed: May 21, 2024
    Publication date: September 12, 2024
    Inventors: Oscar OHLSSON, Karl NORRMAN, Paul SCHLIWA-BERTLING, Magnus STATTIN
  • Publication number: 20240305988
    Abstract: A network node is configured for use in a wireless communication network. The network node is configured to acquire radio access capability information of a wireless device. The radio access capability information of the wireless device indicates radio access capabilities of the wireless device. The network node is configured to determine if the wireless communication network received the radio access capability information of the wireless device before access stratum security was activated for the wireless device. If the wireless communication network received the radio access capability information of the wireless device before access stratum security was activated for the wireless device according to that determination, the network node is configured to re-acquire the radio access capability information of the wireless device after access stratum security is activated for the wireless device.
    Type: Application
    Filed: May 14, 2024
    Publication date: September 12, 2024
    Inventors: Oscar Ohlsson, Magnus Stattin, Prajwol Kumar Nakarmi, Peter Hedman, Malik Wahaj Arshad
  • Publication number: 20240276359
    Abstract: A method performed by a radio network node for handling services in a wireless communications network. The radio network node receives, from a user equipment (UE), an indication indicating selection of a service associated with a service indication out of at least one service indication; and based on the received indication, selects a network node that supports the service indicated by the indication.
    Type: Application
    Filed: April 28, 2022
    Publication date: August 15, 2024
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Christofer LINDHEIMER, Mai-Anh PHAN, Oscar OHLSSON, Hernán Felipe ARRAÑO SCHARAGER, Miguel Angel GARCIA MARTIN, Peter HEDMAN
  • Patent number: 12063554
    Abstract: A method performed by a User Equipment, UE, to perform handover from a source access node to a target access node is provided. The UE, the source access node and 5 the target access node are operating in a wireless communications network. The UE receives (601) a handover command message from the source access node. The UE establishes (602) a target radio connection with the target access node, and determines (603) whether or not a source cell release criterion is fulfilled. When the source cell release criterion is determined to be fulfilled, the UE releases (604) a source radio 10 connection with the source access node.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: August 13, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Pontus Wallentin, Pradeepa Ramachandra, Johan Rune, Oscar Ohlsson, Claes-Göran Persson, Jens Bergqvist
  • Patent number: 12047828
    Abstract: A process allows a UE to acquire a System Frame Number (SFN) before accessing a target base station/node during a RACH-less handover. The SFN may be provided to the UE in various ways. For example, the SFN may be provided as part of a handover command message (e.g., RRCReconfiguration) or a master information block (MIB). In this manner, the UE acquires the SFN before accessing the target base station/node, which allows the target base station/node and the UE to effect certain timings for the handover. For example, the target base station/node and the UE may set time bounds in which the handover must occur. As another example, different types of uplink grants may be set.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: July 23, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Jens Bergqvist, Johan Rune, Oscar Ohlsson, Pontus Wallentin
  • Patent number: 12041497
    Abstract: The invention refers to a method, in a wireless device operating in a wireless communication network, the method comprising: receiving, from a source node, a conditional handover command, the conditional handover command including or being associated with a triggering condition for execution of handover to a target cell or target beam; detecting, that the triggering condition is met; if a conditional handover configuration is not yet completed, executing the handover to the target cell or beam without sending a message confirming completion of a conditional handover configuration to the source node, and otherwise sending the message confirming completion of the conditional handover configuration to the source node; the invention further relates to a corresponding wireless device.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: July 16, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Oscar Ohlsson, Cecilia Eklöf, Mattias Bergström, Walter Müller
  • Publication number: 20240224335
    Abstract: Systems and methods for early indication for multiple features are provided. In some embodiments, a method performed by a wireless device for early indication of features includes: determining to use an on-demand Random Access (RA) resource; transmitting, to a network node, an activation preamble to activate the on-demand RA resource; and transmitting, to the network node, a preamble on the on-demand RA resource. Certain embodiments may provide one or more of the following technical advantages. The amount of RA resources can be made larger when there is demand for it. If no User Equipment (UE) is interested in using the on-demand RA resource, those radio resources can be used by the network for other purposes, e.g., dynamic scheduling of user data on Physical Uplink Shared Channel (PUSCH). The amount of RA resources hence scales with the demand without tying up and wasting resources when not used.
    Type: Application
    Filed: May 9, 2022
    Publication date: July 4, 2024
    Inventors: Luca Feltrin, Mattias Bergström, Andreas Höglund, Oscar Ohlsson
  • Publication number: 20240179601
    Abstract: Embodiments include conditional mobility methods performed by a user equipment (UE) in a wireless network. Such methods include receiving, from a network node via a serving cell, a conditional mobility configuration related to a plurality of mobility procedures, of different types, towards one or more candidate target entities. The conditional mobility configuration includes one or more triggering conditions for the plurality of mobility procedures. Such methods include monitoring for the triggering conditions based on measurements of radio signals associated with the candidate target entities and/or the serving cell. Such methods include, based on detecting a particular triggering condition, performing a particular mobility procedure towards a particular candidate target entity, with the particular candidate target entity and/or the particular mobility procedure being selected based on a selection rule.
    Type: Application
    Filed: February 1, 2024
    Publication date: May 30, 2024
    Inventors: Icaro L.J. Da Silva, Johan Rune, Cecilia Eklöf, Oscar Ohlsson
  • Publication number: 20240172095
    Abstract: A method performed by a radio network node (12) for handling communication in a wireless communications network. The radio network node (12) configures a UE (10) with a mapping, wherein the mapping maps a name indication to a GID, and/or a type indication of a type of service offered by one or more networks identified by the GID.
    Type: Application
    Filed: March 29, 2022
    Publication date: May 23, 2024
    Inventors: Christofer Lindheimer, Mai-Anh Phan, Oscar Ohlsson, Hernán Felipe Arraño Scharager, Miguel Angel Garcia Martin, Peter Hedman
  • Patent number: 11985555
    Abstract: A method by a user equipment in a wireless communication system includes receiving an access command from a source node, the access command instructing the UE to access a target cell and including an access configuration specifying an access method without random access and one or more valid target cell beams for which the access configuration is valid at the target cell, and accessing the target cell in response to the access command.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: May 14, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Jens Bergqvist, Johan Rune, Oscar Ohlsson