Patents by Inventor Helka-Liina Määttänen

Helka-Liina Määttänen 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: 20250048416
    Abstract: There is provided a method performed by a user equipment (UE). The method comprises: receiving a message for activating multiple Transmission Configuration Indicators (TCIs) configured for the UE; and performing Radio Link Monitoring (RLM) measurements, for a plurality of Transmission Reception Points (TRPs) configured for the UE, on reference signals associated with multiple Physical Cell Identifiers (PCIs), wherein the reference signals are configured as Quasi-Colocation (QCL) source of the activated TCI states. A UE for implementing this method is also provided.
    Type: Application
    Filed: September 30, 2022
    Publication date: February 6, 2025
    Inventors: Helka-Liina MÄÄTTÄNEN, Icaro Leonardo Da Silva, Pradeepa Ramachandra, Venkatarao GONUGUNTLA
  • Publication number: 20250047325
    Abstract: Methods and apparatus for obtaining a frequency offset corresponding to a Doppler shift of transmission and/or reception frequencies between a wireless device and a network node.
    Type: Application
    Filed: October 24, 2024
    Publication date: February 6, 2025
    Inventors: Stefan ERIKSSON LÖWENMARK, Talha KHAN, Xingqin LIN, Helka-Liina MÄÄTTÄNEN, Sebastian EULER
  • Patent number: 12206501
    Abstract: A method performed by a wireless device for mapping data to specific HARQ processes is provided. The method includes receiving an indication that maps data that can be sent on one or more of specific HARQ processes and transmitting/receiving a transmission for the specific HARQ process based on the received indication. A method performed by a base station for mapping data to specific HARQ processes is also provided. A wireless device and a base station for mapping data to specific HARQ processes are also provided.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: January 21, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Helka-Liina Määttänen, Björn Hofström
  • Patent number: 12200738
    Abstract: There is provided a method, in a wireless device, for transmitting a reference signal. The method comprises: receiving a configuration via Radio Resource Control (RRC) from a network node, the configuration comprising a list of slot offset values configured for a Sounding Reference Signal (SRS) resource set; receiving Downlink Control Information (DCI) triggering the SRS resource set, wherein the DCI contains a slot offset bitfield for indicating one of the slot offset values in the list of slot offset values and wherein each entry of the list of slot offset values corresponds to a codepoint of the slot offset bitfield; and transmitting a reference signal using SRS resources configured in the triggered SRS resource set based on the indicated slot offset value.
    Type: Grant
    Filed: April 5, 2022
    Date of Patent: January 14, 2025
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Andreas Nilsson, Sven Jacobsson, Helka-Liina Määttänen
  • Publication number: 20250016592
    Abstract: According to some embodiments, a method performed by a wireless device comprises receiving a measurement configuration to measure reference signals from one or more satellite cells of a plurality of satellite cells. The measurement configuration includes one or more parameters that indicate how the measurement configuration is to be updated over time. The method further comprises: measuring a reference signal on one or more selected satellite cells using a first measurement configuration based on the received measurement configuration; dynamically adapting the measurement configuration based on the received parameters that indicate how measurement configuration is to be updated resulting in a second measurement configuration; and measuring a reference signal on one or more selected satellite cells using the second measurement configuration.
    Type: Application
    Filed: April 14, 2022
    Publication date: January 9, 2025
    Inventors: Johan Rune, Helka-Liina Määttänen
  • Patent number: 12192837
    Abstract: Methods performed by base stations and wireless devices for reducing RSRP and/or RSRQ measurements are disclosed. A method performed by a base station comprises indicating to a wireless device whether or not to perform cell selection and/or reselection measurements based on certain criteria. A method performed by a wireless device comprises determining whether or not to perform cell selection and/or reselection measurements based on certain criteria. Also disclosed are base stations and wireless devices configured to perform the methods.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: January 7, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Jonas Sedin, Sebastian Euler, Xingqin Lin, Helka-Liina Määttänen, Olof Liberg, Henrik Rydén
  • Patent number: 12191957
    Abstract: Systems and methods are disclosed herein for enabling a User Equipment (UE) to perform cell quality derivation in a wireless communication network utilizing parameters from an appropriate measurement object. In some embodiments, a method of operation of a UE to perform cell quality derivation in a wireless communication network includes the UE receiving, via Radio Resource Control (RRC) signaling, a measurement configuration that includes a list of measurement objects. The UE receives a serving cell configuration including frequency information that specifies an absolute frequency of a Synchronization Signal block (SSB) corresponding to a serving cell. The UE selects a measurement object in the list of measurement objects that specifies an SSB frequency having a same value as the specified absolute frequency.
    Type: Grant
    Filed: September 12, 2023
    Date of Patent: January 7, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Icaro L. J. Da Silva, Pradeepa Ramachandra, Helka-Liina Määttänen
  • Publication number: 20240413939
    Abstract: There is provided a method performed by a user equipment (UE). The method comprises: receiving, from a first network node, one or more inter-cell multiple Transmission Reception Point (mTRP) configurations, wherein each configuration comprises one or more cell parameters determining one or more cell parameters from the received inter-cell mTRP configurations according to a selection function; and transmitting a message to a second network node, the message comprising a UE identifier, obtained from the selected one or more cell parameters.
    Type: Application
    Filed: September 9, 2022
    Publication date: December 12, 2024
    Inventors: ICARO LEONARDO DA SILVA, HELKA-LIINA MÄÄTTÄNEN, PRADEEPA RAMACHANDRA
  • Publication number: 20240406760
    Abstract: A wireless communication device (12) collects minimization of drive test, MDT, measurements. The wireless communication device (12) transmits an MDT measurement report (14) that reports the MDT measurements. The content (14C) of the MDT measurement report (14) depends on whether or not the MDT measurements were collected when the wireless communication device (12) was being served by, had been served by, or was near a cell (20A) of a non-terrestrial network, NTN (10A).
    Type: Application
    Filed: October 7, 2022
    Publication date: December 5, 2024
    Inventors: Pradeepa Ramachandra, Muhammad Ali Kazmi, Helka-Liina Määttänen, Marco Belleschi, Ming Li
  • Publication number: 20240397394
    Abstract: There is provided a method in a wireless device configured with multiple Physical Cell Identities (PCIs) for a mobility procedure, wherein the wireless device is configured with one or more cells operating in a same serving frequency, each cell associated with one or more PCIs. The method comprises: selecting a PCI among the multiple PCIs; determining cell measurement results based on cell measurements performed on the selected PCI, wherein the cell measurements represent measurements of a serving cell; and determining whether or not to trigger an event for measurement reporting, based on the cell measurement results. The wireless device may also select a subset of PCIs among the multiples PCIs and determine cell measurement results based on cell measurements performed based on the selected subset of PCIs.
    Type: Application
    Filed: October 7, 2021
    Publication date: November 28, 2024
    Inventors: Pradeepa RAMACHANDRA, Icaro Leonardo DA SILVA, Helka-Liina MÄÄTTÄNEN
  • Publication number: 20240373372
    Abstract: A method, system and apparatus are disclosed for physical uplink control channel (PUCCH) power control towards multiple transmission and reception points (TRPs). According to one aspect, a method in a network node includes configuring a wireless device (WD) with a list of at least two power control parameter sets for power control of a PUCCH applicable to at least one of at least one PUCCH resource and at least one group of PUCCH resources. The method also includes transmitting a medium access control (MAC) control element (CE) to the WD to activate at least one power control parameter set from the list of power control parameter sets applicable to at least one of (1) one PUCCH resource, (2) each one of multiple PUCCH resources, and (3) multiple groups of PUCCH resources.
    Type: Application
    Filed: April 6, 2022
    Publication date: November 7, 2024
    Inventors: Shiwei GAO, Helka-Liina MÄÄTTÄNEN, Siva MURUGANATHAN
  • Publication number: 20240372589
    Abstract: A method, network node and wireless device (WD) for dynamic non-coherent joint transmission channel state information (CSI) indication are disclosed. According to one aspect, a method in a network node includes transmitting a first indication of a set of channel measurement resources (CMRs) for CSI. The CSI includes at least one of: a first CSI for multiple transmission and reception point (multi-TRP) physical downlink shared channel (PDSCH) transmission, and at least one second CSI for PDSCH transmission from one TRP. The method includes transmitting a second indication of a first subset of the set of CMRs to use for determining the first CSI. The method includes configuring the WD to use a second subset of the set of CMRs for determining the at least one second CSI, and receiving a CSI report comprising at least one of the first CSI and the at least one second CSI.
    Type: Application
    Filed: March 31, 2022
    Publication date: November 7, 2024
    Inventors: Andreas NILSSON, Helka-Liina MÄÄTTÄNEN, Shiwei GAO, Siva MURUGANATHAN
  • Patent number: 12136966
    Abstract: Methods and apparatus for obtaining a frequency offset corresponding to a Doppler shift of transmission and/or reception frequencies between a wireless device and a network node. In one embodiment a method is performed by a wireless device for operating in a non-terrestrial network, NTN, the NTN having at least one network node and a communication satellite, wherein the at least one network node is one of a terrestrial base station and a satellite base station or satellite gateway, the method includes obtaining a frequency offset corresponding to a Doppler shift of transmission and/or reception frequencies between the wireless device and the network node and applying the frequency offset to an uplink transmission to the network node.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: November 5, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Stefan Eriksson Löwenmark, Talha Khan, Xingqin Lin, Helka-Liina Määttänen, Sebastian Euler
  • Publication number: 20240357334
    Abstract: A user equipment (UE) may receive an area indication transmitted by a network node. The area indication may identify an area to which a public warning system (PWS) message is applicable. The area indication may not include coordinates and/or shapes that define a geographical area to which the PWS message is applicable. The area indication may include a country indication that identifies a country to which the PWS message is applicable and/or a network indication that identifies a network (or part of a network) to which the PWS message is applicable. The UE may determine whether the UE is in the area to which the PWS message is applicable. Based on the determination, the UE may display or discard the PWS message.
    Type: Application
    Filed: July 22, 2022
    Publication date: October 24, 2024
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mattias BERGSTRÖM, Helka-Liina MÄÄTTÄNEN
  • Publication number: 20240357532
    Abstract: A method of operating a wireless device may be provided. A wireless device may receive a release message from a network node of a radio access network. The release message may include an identification of a redirected carrier. In response to the release message omitting synchronization block related parameters for the redirected carrier, the wireless device may check in measurement information configured for the wireless device for the synchronization block related parameters for the redirected carrier; and may perform synchronization signal measurements for the redirected carrier using the synchronization block related parameters in the measurement information.
    Type: Application
    Filed: April 29, 2024
    Publication date: October 24, 2024
    Inventors: Pradeepa Ramachandra, Icaro L.J. Da Silva, Helka-Liina Määttänen, Henning Wiemann
  • Publication number: 20240349242
    Abstract: According to some embodiments, a method is performed by a wireless device for adapting to intermittent network coverage in a non-terrestrial network (NTN). The method comprises: receiving information indicative of the availability of NTN network access; and determining whether the wireless device is within or outside of an area with NTN network access based in part on the received information and a location of the wireless device. Upon determining that the wireless device is outside the area with NTN network access, the wireless device operates in a reduced power mode in which one or more internal processes are suspended or disabled. Upon determining that the wireless device is within the area with NTN network access, the wireless device operates in a normal power mode in which one or more of the internal processes that were suspended or disabled are reactivated or enabled.
    Type: Application
    Filed: August 5, 2022
    Publication date: October 17, 2024
    Inventors: Johan Rune, Emre Yavuz, Helka-Liina MÄÄTTÄNEN
  • Publication number: 20240324029
    Abstract: Systems and methods are disclosed for random access in a wireless communication system such as, e.g., a wireless communication system having a non-terrestrial (e.g., satellite-based) radio access network. Embodiments of a method performed by a wireless device and corresponding embodiments of a wireless device are disclosed. In some embodiments, a method performed by a wireless device for random access comprises performing an open-loop timing advance estimation procedure to thereby determine an open-loop timing advance estimate for an uplink between the wireless device and a base station. The method further comprises transmitting a random access preamble using the open-loop timing advance estimate. In this manner, random access can be performed even in the presence of a long propagation delay such as that present in a satellite-based radio access network. Embodiments of a method performed by a base station and corresponding embodiments of a base station are also disclosed.
    Type: Application
    Filed: June 3, 2024
    Publication date: September 26, 2024
    Inventors: Xingqin Lin, Shiwei Gao, Helka-Liina Määttänen, Siva Muruganathan, Jonas Sedin, Hazhir Shokri Razaghi, Zhenhua Zou
  • Publication number: 20240314666
    Abstract: Methods and systems are described for triggering conditional handovers in user equipment, such as wireless devices in communication systems. Triggering conditions can comprise location, timer, and signal quality-based conditions. Triggering conditions can be combined together and can be evaluated in hierarchical order depending on user preference, so as to prioritize location, timer, signal quality, or other factors.
    Type: Application
    Filed: January 14, 2022
    Publication date: September 19, 2024
    Inventors: Claes-Göran Persson, Helka-Liina Määttänen, Johan Rune, Emre Yavuz, Chao He
  • Patent number: 12096290
    Abstract: According to some embodiments, a method performed by a wireless device for handover in a non-terrestrial network (NTN) from a source cell to a target cell comprises receiving a conditional handover configuration for one or more potential target cells. The conditional handover configuration comprises a condition for handover comprising a timing advance threshold value for each of the one or more potential target cells. The method further comprises determining that a timing advance between the wireless device and one of the one or more potential target cells is less than or equal to the timing advance threshold and based on the determination, performing a handover to the target cell.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: September 17, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jonas Sedin, Olof Liberg, Xingqin Lin, Helka-Liina Määttänen
  • Patent number: 12089175
    Abstract: A method is performed by a wireless device for communication in a non-terrestrial network, NTN, comprising at least a first non-terrestrial network node and a second non-terrestrial network node. The method includes determining an estimated location of the wireless device. The method further includes obtaining first location information associated with the first non-terrestrial network node and second location information associated with the second non-terrestrial network node. The method further includes calculating an estimated signal time arrival difference based on the location of the wireless device, the first location information, and the second location information. The method further includes using the estimated signal time arrival difference to provision an NTN-specific synchronization signal/physical broadcast channel, SS/PBCH, block measurement timing configuration, NTN-SMTC.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: September 10, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Helka-Liina Määttänen, Henrik Rydén, Jonas Sedin, Sebastian Euler