Patents by Inventor Claes Tidestav

Claes Tidestav 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).

  • Patent number: 12156243
    Abstract: A user equipment, UE, performs measurements based on a plurality of RLM sources received in beam-formed downlink signals, where the measurements indicate a quality of a given cell or beam. The plurality of sources comprises two or more of: first reference signals (RSs), second RSs of a different type than the first RSs, and one or more physical channel quality indicators obtained from non-reference-signal data in the beam-formed downlink signals. For each of the plurality of sources used to perform measurements, the UE determines whether a measurement for the respective source indicates an out-of-sync event in response to the measurement being below a first threshold. The UE then performs an RLM action based on determined occurrences of out-of-sync events.
    Type: Grant
    Filed: November 22, 2022
    Date of Patent: November 26, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Icaro L. J. da Silva, Rui Fan, Claes Tidestav, Umut Ugurlu
  • Patent number: 12156142
    Abstract: Methods and apparatus for communicating power information to a base station (160) from a wireless device (110) having multiple transmission entities. An example method performed by the base station comprises receiving (310) a plurality of indications of power reporting parameters from the wireless device, each of the power reporting parameters corresponding to a respective uplink transmission entity (UTE) of the wireless device. The power reporting parameters corresponding to respective UTEs include power headroom values and/or maximum carrier power values.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: November 26, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Claes Tidestav, Niklas Wernersson
  • Publication number: 20240388349
    Abstract: There is disclosed a method of operating a wireless device in a wireless communication network. The method includes communicating based on beam selection, the beam selection being based on monitoring for reference signalling in a first resource space, the first resource space being associated to a second resource space associated to reception of a random access message. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: June 12, 2022
    Publication date: November 21, 2024
    Inventors: Axel GUTHMANN, Erik ERIKSSON, Anders LANDSTRÖM, Robert BALDEMAIR, Claes TIDESTAV, John SKÖRDEMAN, Qiang ZHANG
  • Patent number: 12149923
    Abstract: One way to increase robustness against beam pair link failure is by transmitting downlink (DL) control signaling (e.g., PDCCH) in more than one beam. That is, one way to mitigate BPLF is for the UE to receive DL control signaling over both a first BPL (e.g., active BPL) and a second BPL (e.g., monitored BPL) but with larger duty cycle for the second BPL compared to the first BPL. For example, the control signaling can be scheduled every slot on the first BPL and scheduled every Nth slot on the second BPL. In this way, in case the first BPL is blocked and the UE cannot decode the control signaling on the first BPL, the UE can receive control signaling transmitted on the second BPL.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: November 19, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Andreas Nilsson, Mattias Frenne, Stephen Grant, Claes Tidestav
  • Publication number: 20240357529
    Abstract: A network node configured to communicate with a wireless device (WD) is described. The network node comprises processing circuitry configured to determine a configuration for the WD to perform at least one timing advance (TA) action for first and second groups of uplink physical channels and reference signals. The determined configuration includes information about first and second TA groups (TAGs). The first and second TAGs are associated with the first and the second groups of uplink physical channels and reference signals, respectively. The first and second TAGs are for a same serving cell. The network node further includes a radio interface in communication with the processing circuitry. The radio interface is configured to transmit the determined configuration to the WD.
    Type: Application
    Filed: September 1, 2022
    Publication date: October 24, 2024
    Inventors: Andreas NILSSON, Siva MURUGANATHAN, Shiwei GAO, Claes TIDESTAV
  • Publication number: 20240348302
    Abstract: A method (1300) performed by a user equipment (1202). The method includes receiving (s1302) a report configuration transmitted by a network node (1204). The method also includes deciding (s1304), based on the report configuration, whether or not to include in a report corresponding to the report configuration at least first rank information associated with at least a first spatial filter. The first rank information specifies a first maximum number of downlink, DL, and/or uplink, UL, spatial layers supported by the UE.
    Type: Application
    Filed: August 3, 2022
    Publication date: October 17, 2024
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Claes TIDESTAV, Daniele DAVOLI, Andreas NILSSON, Siva MURUGANATHAN
  • Publication number: 20240306181
    Abstract: A user equipment, UE, performs measurements based on a plurality of RLM sources received in beam-formed downlink signals, where the measurements indicate a quality of a given cell or beam. The plurality of sources comprises two or more of: first reference signals (RSs), second RSs of a different type than the first RSs, and one or more physical channel quality indicators obtained from non-reference-signal data in the beam-formed downlink signals. For each of the plurality of sources used to perform measurements, the UE determines whether a measurement for the respective source indicates an out-of-sync event in response to the measurement being below a first threshold. The UE then performs an RLM action based on determined occurrences of out-of-sync events.
    Type: Application
    Filed: May 7, 2024
    Publication date: September 12, 2024
    Inventors: Icaro L. J. da Silva, Rui Fan, Claes Tidestav, Umut Ugurlu
  • Publication number: 20240298201
    Abstract: There is disclosed a method of operating a wireless device in a wireless communication network. The method includes transmitting, in a random access message associated to first reference signaling, a measurement report pertaining to second reference signaling. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: July 7, 2021
    Publication date: September 5, 2024
    Inventors: Claes TIDESTAV, Anders LANDSTRÖM, Erik ERIKSSON, John SKÖRDEMAN, Robert BALDEMAIR
  • Patent number: 12075453
    Abstract: In some embodiments, a network (e.g., a TRP) provides to a UE information indicating that a transmitted “first” RS resource (or “RS” for short) is quasi-co-located (QCL) with a scheduled transmission for the UE (e.g., a “second” RS). The UE may then receive the scheduled transmission under an assumption that the scheduled transmission (e.g., a second RS, such as a demodulation RS (DMRS)) is QCL with the first RS. The UE may receive such QCL information before, after or while receiving the first RS.
    Type: Grant
    Filed: September 16, 2022
    Date of Patent: August 27, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Mattias Frenne, Sebastian Faxér, Stephen Grant, Claes Tidestav
  • Publication number: 20240284205
    Abstract: There is disclosed a method of operating a wireless device in a wireless communication network, the method performing a beam failure recovery operation at a beam failure recovery opportunity based on a beam failure detection in a beam failure detection time window associated to the beam failure recovery opportunity. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: June 14, 2021
    Publication date: August 22, 2024
    Inventors: Claes TIDESTAV, Erik ERIKSSON, Qiang ZHANG
  • Publication number: 20240283595
    Abstract: There is disclosed a method of operating a wireless device in a wireless communication network, the wireless device being adapted for communicating based on received reference signalling, the received reference signalling being associated to a random access message transmitted by a network node of the wireless communication network. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: June 14, 2021
    Publication date: August 22, 2024
    Inventors: Erik ERIKSSON, Anders LANDSTRÖM, Robert BALDEMAIR, Claes TIDESTAV, John SKÖRDEMAN, Qiang ZHANG
  • Publication number: 20240275672
    Abstract: Disclosed herein is a method performed by a wireless device for optimized reconfiguration of radio link monitoring, RLM, and beam monitoring. The method includes receiving, from a first network node, a first message comprising at least one RLM parameter related to at least one reference signal. The method further includes receiving, from the first network node, a second message comprising a bitmap indicating activation of at least one RLM parameter associated with the first message. The method additionally includes monitoring one or more reference signals based on the first message and the second message.
    Type: Application
    Filed: April 11, 2024
    Publication date: August 15, 2024
    Inventors: Icaro L. J. Da Silva, Claes Tidestav, Helka-Liina MÄÄTTÄNEN
  • Publication number: 20240250796
    Abstract: Systems and methods for Transmission Configuration Indicator (TCI) state signalling for carrier aggregation are provided. In some embodiments, a method performed by a wireless device for determining TCI states includes receiving a TCI state list in a Physical Downlink Shared Channel (PDSCH) configuration from a reference Bandwidth Part (BWP)/cell; and receiving, in a BWP/cell other than the reference BWP/cell, a PDSCH configuration comprising a pointer to the reference BWP/cell. In some embodiments, RRC overhead from TCI state configuration is reduced.
    Type: Application
    Filed: May 20, 2022
    Publication date: July 25, 2024
    Inventor: Claes Tidestav
  • Publication number: 20240236744
    Abstract: There is disclosed a method of operating a feedback radio node in a wireless communication network. The method includes transmitting a measurement report based on measurement performed on DM-RS associated to received control signaling and/or data signaling. There is disclosed a feedback radio node for a wireless communication network. The feedback radio node is adapted for transmitting a measurement report based on measurement performed on DM-RS associated to received control signaling and/or data signaling. The disclosure also pertains to related devices and methods like a signaling radio node and a feedback radio node, and a method of operating a signaling radio node.
    Type: Application
    Filed: May 10, 2021
    Publication date: July 11, 2024
    Inventors: Robert BALDEMAIR, Erik ERIKSSON, Mattias FRENNE, John SKÖRDEMAN, Claes TIDESTAV
  • Publication number: 20240235912
    Abstract: There is disclosed a method of operating a signaling radio node in a wireless communication network. The method includes transmitting reference signaling, the reference signaling having a pattern comprising, in time domain, N blocks, each block having a plurality of symbols, wherein for each symbol of a first block of the N blocks, the reference signaling is transmitted having a first frequency domain distribution, and for each symbol of a second block of the N blocks, the reference signaling is transmitted having a second frequency domain distribution, the first frequency domain distribution being different from the second frequency domain distribution. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: May 10, 2021
    Publication date: July 11, 2024
    Inventors: Claes TIDESTAV, Robert BALDEMAIR, John SKÖRDEMAN, Erik ERIKSSON
  • Publication number: 20240236882
    Abstract: Embodiments of the invention include methods, systems, and computer programs to determine synchronization signal (SS) block mapping pattern in a wireless network. In one embodiment, a method is implemented in a terminal device for synchronization signal block (SSB) search in a wireless network, the method includes receiving, by the terminal device from a network device, a message containing synchronization signal block (SSB) information indicating a synchronization signal (SS) block subcarrier spacing (SCS) option, where the SS block SCS option maps to a plurality of SS block pattern candidates. The method continues with obtaining SSB candidate locations, using a SS block pattern determination from the plurality of SS block pattern candidates for the terminal device determined.
    Type: Application
    Filed: January 12, 2024
    Publication date: July 11, 2024
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Zhipeng LIN, Asbjörn GRÖVLEN, Fredrik OVESJÖ, Robert BALDEMAIR, Claes TIDESTAV
  • Publication number: 20240235904
    Abstract: Radio network nodes, wireless devices, and related methods are provided in which a pseudo-random sequence initialization value, which is used during the generation of pseudo-random and/or scrambling sequences, is based, at least in part, on a first identifier, wherein the first identifier is equal to a first parameter if the first parameter has been configured and if a second identifier corresponds to a wireless-device-specific identifier.
    Type: Application
    Filed: March 5, 2024
    Publication date: July 11, 2024
    Inventors: Stefan PARKVALL, Robert BALDEMAIR, Claes TIDESTAV, Mattias FRENNE
  • Publication number: 20240205071
    Abstract: According to a first aspect of embodiments herein, the object is achieved by a method performed by a User Equipment (UE) for monitoring a beam transmitted by a base station in a radio communications network. The base station is serving the UE. The UE monitors a reference signal related to the beam, from the base station. Each time a quality of the reference signal is below a first threshold, the UE generates an Out-Of-Synchronization (OOS) event. When the number of OOS events reaches an OOS Beam Failure Detection (BFD) threshold, the UE triggers a beam recovery preparation procedure, and when the number of OOS events reaches an OOS Radio Link Monitoring (RLM), threshold, the UE starts an RLF timer.
    Type: Application
    Filed: December 12, 2023
    Publication date: June 20, 2024
    Inventors: Icaro L. J. Da Silva, Claes Tidestav
  • Publication number: 20240187162
    Abstract: Systems and methods are disclosed for handling a limited set of Path Loss Reference Signals (PL-RSs). In one embodiment, a method performed by a wireless communication device comprises determining a subset of a set of activated uplink (UL) transmission configuration indicator (TCI) states or activated joint or downlink (DL) TCI states for the wireless communication device for which the wireless communication device is to monitor associated pathloss reference signals. The method further comprises monitoring the pathloss reference signals for the subset of the set of activated UL TCI states or activated joint or DL TCI states. In this manner, the wireless communication device is enabled to have a well-defined framework for how to handle uplink output power when the network indicates a switch to a new UL state or new joint or DL TCI state for which the UE is not monitoring a pathloss reference signal.
    Type: Application
    Filed: April 6, 2022
    Publication date: June 6, 2024
    Inventors: Andreas Nilsson, Siva Muruganathan, Claes Tidestav, Jianwei Zhang
  • Publication number: 20240187076
    Abstract: There is disclosed a method of operating a wireless device in a wireless communication network. The method includes performing a beam selection update, the beam selection update being based on received control signaling, the control signaling comprising a report indication indicating a measurement report transmitted by the wireless device, wherein the control signaling further comprises an element indication, the element indication indicating an entry of the indicated measurement report. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: February 17, 2021
    Publication date: June 6, 2024
    Inventors: Erik ERIKSSON, Claes TIDESTAV, Anders LANDSTRÖM