Patents by Inventor Maria HULTSTRÖM

Maria HULTSTRÖM 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: 20250023700
    Abstract: Embodiments herein may relate to a method performed by a UE (10) for determining a start position of a SI window to acquire a SI message in a wireless communication network (1). One or more SI messages are scheduled using a first or a second list of scheduling information. The UE (10) determines, if the SI message is scheduled using the first list of scheduling information, the start position of the SI window based on a location of the SI message in the first list of scheduling information. The UE (10) determines, if the SI message is scheduled using the second list of scheduling information, the start position of the SI window by taking a received input parameter into account, wherein the received input parameter is indicating the start position of the SI window used for acquiring the SI message.
    Type: Application
    Filed: May 6, 2022
    Publication date: January 16, 2025
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ritesh SHREEVASTAV, Maria HULTSTRÖM, Fredrik GUNNARSSON, Gertie ALSENMYR, Håkan PALM, Ali NADER, Mattias BERGSTRÖM
  • Publication number: 20240306038
    Abstract: Techniques for providing and receiving system information messages from a wireless network. An example method, in a user equipment, UE, comprises receiving (510) at least one segment of a segmented system information block, SIB, in a first cell and receiving (520) at least one other segment of the SIB in a second cell. The example method further comprises determining (530), based on information received from the wireless network, whether the at least one segment of the SIB received in the first cell can be concatenated with the at least one other segment of the SIB received in the second cell. The example method still further comprises concatenating (540) the at least one segment received in the first cell with the at least one other segment received in the second cell, to form the SIB, or discarding the at least one segment received in the first cell, depending on said information.
    Type: Application
    Filed: April 14, 2022
    Publication date: September 12, 2024
    Inventors: Ali Nader, Gertie Alsenmyr, Maria Hultström, Carin Omurcali, Martin van der Zee
  • Patent number: 12052623
    Abstract: Embodiments include methods performed by a target RAN controller for handling relocation of a UE connection from a source RAN controller during an ongoing wireless communication. Such methods include, when a distance between the UE and a border between source and target RAN controllers is below a threshold value, receiving from the source RAN controller an order to establish radio link(s) to be controlled by the target RAN controller for the ongoing wireless communication and establishing radio link(s) for the ongoing wireless communication accordingly. Such methods include, based on existence of certain conditions, receiving from the source RAN controller a request to initiate a procedure for relocating the UE connection from source to target RAN controller. Such methods include creating an RRC configuration to be used by the UE after the relocation to the target RAN controller and sending the created RRC configuration to the source RAN controller.
    Type: Grant
    Filed: March 2, 2023
    Date of Patent: July 30, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Alessio Terzani, Carin Omurcali, Maria Hultström, Ulrik Wahlberg
  • Publication number: 20230308850
    Abstract: A method, in a distributed unit (DU) of a base station comprising a central unit (CU) and one or more DUs, each DU serving one or more cells, comprises sending, to the CU, information indicative of capacity in the DU for sending segmented messages and/or indicative of a capability of the DU to send segmented messages. In some embodiments, the information is indicative of capacity in the DU for sending segmented Public Warning System (PWS) messages and/or indicative of a capability of the DU to send segmented PWS messages. In some embodiments, the method further comprises receiving, from the CU, a segmented PWS message in system information blocks (SIBs), each SIB carrying a segment of the PWS message, and broadcasting the SIBs.
    Type: Application
    Filed: July 2, 2021
    Publication date: September 28, 2023
    Inventors: Ali Nader, Gertie Alsenmyr, Carin Omurcali, Maria Hultström, Angelo Centonza
  • Publication number: 20230209428
    Abstract: Embodiments include methods performed by a target RAN controller for handling relocation of a UE connection from a source RAN controller during an ongoing wireless communication. Such methods include, when a distance between the UE and a border between source and target RAN controllers is below a threshold value, receiving from the source RAN controller an order to establish radio link(s) to be controlled by the target RAN controller for the ongoing wireless communication and establishing radio link(s) for the ongoing wireless communication accordingly. Such methods include, based on existence of certain conditions, receiving from the source RAN controller a request to initiate a procedure for relocating the UE connection from source to target RAN controller. Such methods include creating an RRC configuration to be used by the UE after the relocation to the target RAN controller and sending the created RRC configuration to the source RAN controller.
    Type: Application
    Filed: March 2, 2023
    Publication date: June 29, 2023
    Inventors: Alessio Terzani, Carin Omurcali, Maria Hultström, Ulrik Wahlberg
  • Publication number: 20230119042
    Abstract: An AI-based approach to Garbled speech (GS) detection. Machine learning (ML) models are created that can distinguish between GS speech and non-GS speech with high accuracy. The machine learning models take as input an encoded speech frame that has passed a CRC check. The input data/predictors to the models are a selected set of information elements (IEs) (i.e., a set of one or more bits) of the encoded speech frame. The selected IEs are a part of the input parameters to the speech decoder. It is possible to operate on single encoded speech frames, in contrast to using decoded frames, which requires taking a previous encoded frame into account for being able to perform the decoding.
    Type: Application
    Filed: March 31, 2020
    Publication date: April 20, 2023
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Maria HULTSTRÖM, Johan BERTENSTAM, Thomas ÖHLEN
  • Publication number: 20230112994
    Abstract: A simulated Public Warning System (PWS) message is defined for efficient PWS testing. The simulated PWS message mimics a conventional PWS message, but indicates that it is not to be propagated across an air interface to UEs. However, the simulated PWS message is otherwise propagated through the network as a PWS message. This allows for testing the generation and propagation of PWS messages, without wasting valuable air interface and battery resources. In some embodiments, network nodes may initiate testing by requesting a simulated PWS message. An Access and Mobility management Function (AMF) node in a wireless communication network collects and reports network status to a PWS entity. The AMF node ascertains the functionality of network functions, nodes, and interfaces to which it is connected, independently from receiving reports of such functionality, and an indication of any detected fault or failure is sent to the PWS entity.
    Type: Application
    Filed: March 30, 2021
    Publication date: April 13, 2023
    Inventors: Ali NADER, Gertie ALSENMYR, Maria HULTSTRÖM, Carin OMURCALI, Angelo CENTONZA
  • Patent number: 11601858
    Abstract: A method performed by a source Radio Network Controller (RNC) for handling a relocation of a User Equipment (UE) connection from the source RNC to a target RNC to serve the UE in an ongoing wireless communication is provided. An interface between the source RNC and the target RNC is available. When all radio links in the ongoing wireless communication are controlled by the target RNC and a triggering condition is fulfilled for relocation of the UE connection from the source RNC to the target RNC, the source RNC decides (202) to discontinue to use said interface. Then a core network is used for sending (204) to the target RNC, a triggering of the relocation procedure for relocating the source RNC to the target RNC to serve the UE. A Radio Resource Control (RRC) configuration defined by the target RNC to be used after the relocation to the target RNC is then obtained (205) via the core network.
    Type: Grant
    Filed: September 3, 2018
    Date of Patent: March 7, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Alessio Terzani, Carin Omurcali, Maria Hultström, Ulrik Wahlberg
  • Publication number: 20210235348
    Abstract: A method performed by a source Radio Network Controller (RNC) for handling a relocation of a User Equipment (UE) connection from the source RNC to a target RNC to serve the UE in an ongoing wireless communication is provided. An interface between the source radio link to be controlled by target RNC for the ongoing RNC and the target RNC is available. When all radio links in the ongoing wireless communication are controlled by the target RNC and a triggering condition is fulfilled for relocation of the UE connection from the source RNC to the target RNC, the source RNC decides (202) to discontinue to use said interface. Then a core network is used for sending (204) to the target RNC, a triggering of the relocation procedure for relocating the source RNC to the target RNC to serve the UE. A Radio Resource Control (RRC) configuration defined by the target RNC to be used after the relocation to the target RNC is then obtained (205) via the core network.
    Type: Application
    Filed: September 3, 2018
    Publication date: July 29, 2021
    Inventors: Alessio Terzani, Carin Omurcali, Maria Hultström, Ulrik Wahlberg
  • Patent number: 9917673
    Abstract: In accordance with an example embodiment of the present invention, disclosed is a method and an apparatus thereof for handling codec rate adaptation in a communication network applying circuit switched communication. The method is performed by a wireless device. The method comprises receiving an indication of a codec mode and determining a codec mode subset based on the indicated codec mode. Rate adaptation is applied based on the codec modes comprised in the determined codec mode subset having a bit rate below or equal to a bit rate associated with the indicated codec mode.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: March 13, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Stefan Bruhn, Maria Hultström, Karl Hellwig
  • Publication number: 20170117985
    Abstract: In accordance with an example embodiment of the present invention, disclosed is a method and an apparatus thereof for handling codec rate adaptation in a communication network applying circuit switched communication. The method is performed by a wireless device. The method comprises receiving an indication of a codec mode and determining a codec mode subset based on the indicated codec mode. Rate adaptation is applied based on the codec modes comprised in the determined codec mode subset having a bit rate below or equal to a bit rate associated with the indicated codec mode.
    Type: Application
    Filed: March 10, 2016
    Publication date: April 27, 2017
    Inventors: Stefan BRUHN, Maria HULTSTRÖM, Karl HELLWIG