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).

  • Publication number: 20240107612
    Abstract: A method for handling Downlink (DL) Uplink (UL) Transmission Configuration Indicator (TCI) states is disclosed herein. More specifically, methods performed by a wireless device and a base station for handling DL UL TCI states are provided. The methods disclosed herein can be beneficial to enable dynamic power control in the event of Maximum Permissible Exposure (MPE), wherein one beam pair link is best for DL signals/channels while another beam pair link is best for UL signals/channels.
    Type: Application
    Filed: April 6, 2022
    Publication date: March 28, 2024
    Inventors: Andreas Nilsson, Siva Muruganathan, Claes Tidestav
  • Publication number: 20240106572
    Abstract: A method of operating a wireless device in a wireless communication network. The method includes transmitting, to a network node, control information in a signaling structure, the signaling structure comprising a content header, the content header being indicative of size and/or type of one or more control information substructures of the signaling structure. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: February 15, 2021
    Publication date: March 28, 2024
    Inventors: Stefan PARKVALL, Robert BALDEMAIR, Erik ERIKSSON, John SKÖRDEMAN, Claes TIDESTAV
  • Patent number: 11943082
    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: Grant
    Filed: January 25, 2022
    Date of Patent: March 26, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Stefan Parkvall, Robert Baldemair, Claes Tidestav, Mattias Frenne
  • Publication number: 20240080843
    Abstract: Systems and methods of the present disclosure are directed to a method performed by a wireless communication device (WCD). The method includes receiving, from a Radio Access Network (RAN) node, a Medium Access Control (MAC) Control Element (CE) that includes information. The information indicates a plurality of activated Transmission Configuration Indicator (TCI) states for the WCD including at least one Downlink (DL) TCI state and at least one Uplink (UL) TCI state. The information maps each activated TCI state of the plurality of activated TCI states to one of a plurality of codepoints of a TCI field in a Downlink Control Information (DCI).
    Type: Application
    Filed: December 30, 2021
    Publication date: March 7, 2024
    Inventors: Siva Muruganathan, Helka-Liina Määttänen, Claes Tidestav, Shiwei Gao
  • Patent number: 11924867
    Abstract: A method, network node and wireless device for efficient signaling of rate matching patterns are disclosed. According to one aspect, a network node is configured to indicate to a wireless device whether at least one resource element, RE, associated with a reference signal is one of available and not available for physical downlink shared channel, PDSCH-to-RE mapping, the at least one RE associated with the reference signal being at least one RE in a same orthogonal frequency division multiplex, OFDM, symbol as the reference signal; and transmit signaling according to the PDSCH-to-RE mapping, the PDSCH being one of mapped and not mapped to the at least one RE associated with the reference signal based on the indication. According to another aspect, a wireless device is configured to receive the indication from the network node; and receive the PDSCH based on the indication.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: March 5, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Claes Tidestav, Mattias Frenne
  • Publication number: 20240072982
    Abstract: A method, system and apparatus for separate implicit update of activated transmission configuration indicator (TCI) states for downlink (DL) and uplink (UL) are disclosed. According to one aspect, a method in a wireless device (WD) includes sending a measurement report for at least one reference signal to a network node, the at least one reference signal being related to at least one TCI state, the at least one TCI state being at least one of a DL TCI state and an UL TCI state. The method also includes activating at least one TCI state that is related to the at least one reference signal.
    Type: Application
    Filed: December 29, 2021
    Publication date: February 29, 2024
    Inventors: Claes TIDESTAV, Andreas NILSSON, Helka-Liina MÄÄTTÄNEN, Siva MURUGANATHAN
  • Patent number: 11917687
    Abstract: According to certain embodiments, a method performed by a wireless device comprises initiating a random access procedure in which the wireless device sends a Physical Random Access Channel, PRACH, preamble to a network node and applying a receiver configuration for receiving an access response. The receiver configuration is determined based at least in part on whether a many-to-one association exists between (a) a downlink signal that can be used for beam selection prior to initiating the random access procedure, and (b) PRACH preamble indices.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: February 27, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Henrik Sahlin, Claes Tidestav, Andres Reial, Icaro L. J. Da Silva, Johan Axnäs
  • Patent number: 11916724
    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: Grant
    Filed: February 21, 2023
    Date of Patent: February 27, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Icaro L. J. Da Silva, Claes Tidestav
  • Publication number: 20240064770
    Abstract: Systems and methods of the present disclosure are directed to a method performed by a wireless communication device (WCD). The method includes receiving, from a network node, downlink control information (DCI) that includes information that indicates Transmission Configuration Indicator (TCI) state(s) to be activated at the WCD. The TCI state(s) to be activated at the WCD include downlink TCI state(s), uplink TCI state(s), or both. The method includes updating a list of activated downlink TCI states at the WCD, a list of activated uplink TCI states at the WCD, or both the list of activated downlink TCI states and the list of activated uplink TCI states at the WCD based on the received DCI.
    Type: Application
    Filed: December 30, 2021
    Publication date: February 22, 2024
    Inventors: Claes Tidestav, Andreas Nilsson, Siva Muruganathan, Helka-Liina Määttänen
  • Publication number: 20240056247
    Abstract: Embodiments include methods for a user equipment (UE) configured for beam reporting in a wireless network. Such methods include receiving a configuration of at least first and second resource sets. Each resource set includes multiple reference signals associated with corresponding multiple spatial filtering configurations. Such methods include performing measurements on the reference signals of the first and second resource sets and sending, to the wireless network, a beam report including the measurements arranged in at least first and second groups. Each group includes measurements performed on a first reference signal from the first resource set and on a second reference signal from the second resource set. The first and second reference signals are received concurrently by the UE. One measurement included in the first group is expressed as an absolute value, while others in the first group are expressed as differential values relative to the absolute value.
    Type: Application
    Filed: January 14, 2022
    Publication date: February 15, 2024
    Inventors: Siva Muruganathan, Andreas Nilsson, Claes Tidestav, Shiwei Gao
  • Publication number: 20240056147
    Abstract: A method by a wireless device for computing channel state information (CSI) includes obtaining an overlapping N-port CSI-RS resource definition that overlaps with an M-port CSI-RS resource definition. A number N of ports associated with the overlapping N-port CSI-RS resource definition is less than a number M of ports associated with the M-port CSI-RS resource definition. The wireless device calculates N-port CSI based on the overlapping N-port CSI-RS definition and reports the N-port CSI to a network node.
    Type: Application
    Filed: October 5, 2020
    Publication date: February 15, 2024
    Inventors: Sebastian Faxer, Siva Muruganathan, Shiwei Gao, Robert Mark Harrison, Mattias Frenne, Claes Tidestav
  • Patent number: 11902217
    Abstract: Embodiments include methods for a network node to activate semi-persistent sounding reference signal (SP-SRS) resources for transmission by a user equipment (UE). Such methods include sending, to the UE, a control message comprising configuration of a set of SP-SRS resources associated with a particular serving cell of the wireless communication network. Such methods include sending to the UE a further control message for activating the configured set of SP-SRS resources. The further control message includes information identifying an SP-SRS resource of the set of SP-SRS resources to be activated, and an indication of the identified SP-SRS resource's spatial relation with a further resource that is not associated with the particular serving cell. The indication comprising an identity of a further serving cell that is different from the particular serving cell and that is associated with the further resource. Other embodiments include complementary methods for a UE.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: February 13, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stephen Grant, Sebastian Faxér, Claes Tidestav
  • Publication number: 20240048422
    Abstract: There is disclosed a method A method of operating a transmitting radio node in a wireless communication network. The method comprises transmitting a data block utilising a plurality of transmission sources, wherein different parts of the data block are transmitted utilising different transmission resources. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: January 31, 2021
    Publication date: February 8, 2024
    Inventors: Mattias FRENNE, Robert BALDEMAIR, Stefan PARKVALL, Claes TIDESTAV
  • Publication number: 20240023045
    Abstract: A method performed by a communication device is provided. The communication device is configured with a plurality of transmission configurations associated with one or more cells, each cell associated with one or more physical cell identities, PCIs. The method includes receiving a signal for lower layer mobility. The signal including an indication of a transmission configuration to be activated from the plurality of transmission configurations; and, in response to the indicated transmission configuration, determining if a timing advance, TA, is valid or invalid.
    Type: Application
    Filed: December 14, 2021
    Publication date: January 18, 2024
    Inventors: Icaro Leonardo DA SILVA, Pradeepa RAMACHANDRA, Helka-Liina MÄÄTTÄNEN, Claes TIDESTAV, Siva MURUGANATHAN
  • Patent number: 11877249
    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: Grant
    Filed: July 10, 2019
    Date of Patent: January 16, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Zhipeng Lin, Asbjörn Grövlen, Fredrik Ovesjö, Robert Baldemair, Claes Tidestav
  • Patent number: 11871396
    Abstract: Some embodiments of this disclosure provide a method performed by one or more transmission points, TRPs, for communicating with a user equipment, UE. In some embodiments, the method includes: using a first transmit, TX, beam to communicate with the UE; receiving, from the UE, information indicating that the UE has determined that the first TX beam has experienced a beam failure; and after the information is received, using a second TX beam to communicate with the UE.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: January 9, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Stephen Grant, Mattias Frenne, Andreas Nilsson, Claes Tidestav
  • Publication number: 20230421340
    Abstract: Systems and methods for implicitly activating one or more Transmission Configuration Indicator (TCI) states are provided. In some embodiments, a method performed by a wireless communication device for implicit TCI state activation includes sending a measurement report for one or more reference signals to a base station. The one or more reference signals are related to one or more TCI states, respectively. The method further includes activating at least one TCI state from among the one or more TCI states that are related to the one or more reference signals. In this way, the TCI state selection may be expedited and simplified because additional Medium Access Control (MAC) Control Element (CE) activation message may be avoided.
    Type: Application
    Filed: October 22, 2021
    Publication date: December 28, 2023
    Inventors: Claes TIDESTAV, Andreas NILSSON, Jianwei ZHANG, Siva MURUGANATHAN
  • Publication number: 20230413077
    Abstract: A method (200) performed by a UE (102). The method includes receiving (s202) one or more messages for activating at least i) a first set of configured TCI states and ii) a second set of configured TCI states, wherein the first set of activated TCI states is associated with a first PCI and indicates a first set of reference signals, and the second set of activated TCI states is associated with a second PCI and indicates a second set of reference signals. The method also includes performing (s204) beam failure detection, BFD, monitoring. Performing the BFD monitoring comprises: determining (s206) whether a beam failure with respect to the first PCI has occurred based on the first set of reference signals; and determining (s208) whether a beam failure with respect to the second PCI has occurred based on the second set of reference signals.
    Type: Application
    Filed: October 29, 2021
    Publication date: December 21, 2023
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Helka-Liina MÄÄTTÄNEN, Icaro Leonardo DA SILVA, Siva MURUGANATHAN, Andreas NILSSON, Claes TIDESTAV
  • Publication number: 20230396375
    Abstract: Method and apparatus are disclosed herein for providing Downlink Control Information (DCI)-based Transmission Configuration Indicator (TCI) state update with flexible channel selection. In one embodiment, a method performed by a network node of a cellular communication system comprises transmitting, to a User Equipment (UE), a DCI having a DCI format comprising a TCI state update indication, and a TCI state update application indication indicating one or more channels or signals to which the TCI state update is to be applied by the UE. In another embodiment, a method performed by a UE comprises receiving a DCI having a DCI format comprising a TCI state update indication and a TCI state update application indication indicating one or more channels or signals to which the TCI state update is to be applied by the UE, and applying the TCI state update as indicated by the TCI state update application indication.
    Type: Application
    Filed: October 18, 2021
    Publication date: December 7, 2023
    Inventors: Siva Muruganathan, Jianwei Zhang, Andreas Nilsson, Shiwei Gao, Helka-Liina Määttänen, Claes Tidestav
  • Publication number: 20230397129
    Abstract: A method, network node and wireless device (WD) for reference signal selection and use at power limitation are disclosed. According to one aspect, a method in a wireless device, WD, configured to communicate with a network node is provided. The method includes determining that a maximum permissible emission event has occurred for a current spatial domain transmission filter of the WD, selecting at least one candidate downlink reference signal and reporting the selected candidate downlink reference signal to the network node.
    Type: Application
    Filed: October 22, 2021
    Publication date: December 7, 2023
    Inventors: Claes TIDESTAV, Andreas NILSSON, Eleftherios KARIPIDIS, Daniele DAVOLI