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).
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Publication number: 20250142382Abstract: According to some embodiments, a method of operating a network node is provided. A first information element IE is provided including an indication of an added synchronization signal block/physical cell identity SSB/PCI. The indication of the added SSB/PCI indicates an SSB and associated PCI that are associated with a radio link. A second IE is provided including the indication of the added SSB/PCI. The second IE relates to at least one of channel state information CSI, radio link monitoring, uplink power control, and/or uplink spatial relations. A control message including the first IE and the second IE is transmitted to a user equipment UE, to enable the UE to perform a radio link monitoring function on the radio link.Type: ApplicationFiled: January 6, 2025Publication date: May 1, 2025Inventors: Helka-Liina Määttänen, Mattias Frenne, Mats Folke, Claes Tidestav
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Patent number: 12273821Abstract: A user equipment (UE) being configured to receive a downlink (DL) information, determine a spatial association for an uplink (UL) transmission based on the DL information, and determine UL power control (PC) parameters based on the DL information.Type: GrantFiled: April 20, 2022Date of Patent: April 8, 2025Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Ravikiran Nory, Stephen Grant, Claes Tidestav, Niklas Wernersson
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Patent number: 12267795Abstract: 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: GrantFiled: January 12, 2024Date of Patent: April 1, 2025Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Zhipeng Lin, Asbjörn Grövlen, Fredrik Ovesjö, Robert Baldemair, Claes Tidestav
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Publication number: 20250063520Abstract: There is disclosed a method of operating a wireless device in a wireless communication network. The method includes communicating based on received synchronisation signalling, the synchronisation signalling covering a signalling time interval having a number N1 of symbol time intervals or symbols, wherein N1 is larger than 1; the synchronisation signalling including, on NP1 symbol time interval or symbols, primary synchronisation signalling, PSS; the synchronisation signalling also including, on NS1 symbol time intervals or symbols, secondary synchronisation signalling, SSS, wherein NP1 is 2 or larger and/or wherein NS1 is 2 or larger. The disclosure also pertains to related devices and methods.Type: ApplicationFiled: December 31, 2021Publication date: February 20, 2025Inventors: Robert BALDEMAIR, Qiang ZHANG, Claes TIDESTAV, Stefan PARKVALL
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Patent number: 12231930Abstract: According to some embodiments, a method of operating a network node is provided. A first information element IE is provided including an indication of an added synchronization signal block/physical cell identity SSB/PCI. The indication of the added SSB/PCI indicates an SSB and associated PCI that are associated with a radio link. A second IE is provided including the indication of the added SSB/PCI. The second IE relates to at least one of channel state information CSI, radio link monitoring, uplink power control, and/or uplink spatial relations. A control message including the first IE and the second IE is transmitted to a user equipment UE, to enable the UE to perform a radio link monitoring function on the radio link.Type: GrantFiled: September 4, 2020Date of Patent: February 18, 2025Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Helka-Liina Maattanen, Mattias Frenne, Mats Folke, Claes Tidestav
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Publication number: 20250056443Abstract: There is disclosed a method of operating a wireless device in a wireless communication network. The method includes communicating based on received synchronisation signalling, the synchronisation signalling covering a signalling time interval having a number N1 of symbol time intervals or symbols, wherein N1 is larger than 1; the synchronisation signalling comprising, on NP1 symbol time interval or symbols, primary synchronisation signalling, PSS; the synchronisation signalling also comprising, on NS1 symbol time intervals or symbols, secondary synchronisation signalling, SSS, wherein NS1 is 2 or larger. The disclosure also pertains to related devices and methods.Type: ApplicationFiled: December 31, 2021Publication date: February 13, 2025Inventors: Robert BALDEMAIR, Qiang ZHANG, Claes TIDESTAV, Stefan PARKVALL
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Publication number: 20250047393Abstract: Systems and methods for physical layer (L1) Reference Signal Received Power (RSRP) measurement and reporting are disclosed. In one embodiment, a method performed by a User Equipment (UE) comprises performing L1-RSRP measurements for at least a subset of a first set of reference signals configured for L1-RSRP measurements, the subset of the first set of reference signals consisting of reference signals that are both in the first set of reference signals configured for L1-RSRP measurements and in a second set of reference signals identified during Radio Resource Management (RRM) measurements performed by the UE. The method further comprises reporting the L1-RSRP measurements only for the subset of the first set of reference signals configured for L1-RSRP measurements. In this manner, UE complexity is reduced.Type: ApplicationFiled: February 3, 2023Publication date: February 6, 2025Inventor: Claes Tidestav
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Patent number: 12219372Abstract: A method for arranging transmission of SSBs comprises transmitting (S1), from a first TRXP of a cellular telecommunication system, of first SSBs at a carrier. The first SSBs define a first cell. The first cell is unique for the first 5TRXP. The method further comprises transmitting (S2), from the first TRXP, of second SSBs at the carrier. The second SSBs define a second cell. The second cell is a combined cell of the first TRXP and at least one neighbouring, second TRXP. A method for cell assignment based on multiple SSBs is also disclosed, as well as TRXPs and network nodes for implementing the methods.Type: GrantFiled: October 7, 2019Date of Patent: February 4, 2025Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Patrik Karlsson, Claes Tidestav, Walter Müller
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Publication number: 20250030512Abstract: Systems and methods for configured grant for multi-panel Uplink (UL) transmission are provided. In some embodiments, a method performed by a User Equipment (UE) for transmitting PUSCH configured grant to multiple-TRPs includes: receiving a configuration of at least one unified TCI state, indicating mTRP operation; receiving an indication of a configured grant, indicating either mTRP operation using repetition or Simultaneous Transmission Across Multiple Panels (STxMP); and transmitting a PUSCH according to the configuration o. In this way, the unified TCI state framework can be extended to mTRP and multi-panel transmission for configured grant. With the unified TCI state framework, separate spatial relations do not have to be configured for UL transmission. Hence, unified TCI state framework can provide some higher layer overhead savings. By extending unified TCI state framework for mTRP and multi-panel transmission for configured grant, configured grant based PUSCH can also leverage this advantage.Type: ApplicationFiled: November 9, 2022Publication date: January 23, 2025Inventors: Siva Muruganathan, Andreas Nilsson, Shiwei Gao, Claes Tidestav
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Patent number: 12192047Abstract: 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: GrantFiled: December 12, 2023Date of Patent: January 7, 2025Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Icaro L. J. Da Silva, Claes Tidestav
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Patent number: 12191935Abstract: An access node transmits, in a downlink signal having a series of subframes, a beam-formed reference signal in subframes, where the beam-formed reference signals are transmitted in fewer than all of the subframes of the downlink signal. A first subset includes beam-formed reference signals corresponding to a first frequency or first localized range of frequencies, and a second subset includes beam-formed reference signals corresponding to a second frequency or second localized range of frequencies. The second frequency or second localized range of frequencies is spaced apart from and differing from the first frequency or first localized range of frequencies. A user equipment, UE, receives, in the downlink signal, the beam-formed reference signal in each of a plurality of subframes. The UE performs mobility management measurements using at least the first subset of the received beam-formed reference signals and performs RLM using the second subset of the received beam-formed reference signals.Type: GrantFiled: September 15, 2020Date of Patent: January 7, 2025Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Icaro L. J. da Silva, Rui Fan, Pradeepa Ramachandra, Claes Tidestav, Umut Ugurlu
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Patent number: 12192991Abstract: The invention refers to a method in a user equipment, UE (100) of a wireless communications network, wherein the communications network provides a radio connection of the UE to a base station, gNB (200), comprising the steps of sending the gNB (200) UE capability information indicative of multiple input multiple output, MIMO, capabilities, receiving from the gNB (200) configuration information for a transmission configuration indication, TCI, state configuration associated to spatial quasi co-location, QCL, assistance, and receiving from the gNB (200) physical download control channel, PDCCH, information to determine PDSCH scheduling referring to the TCI state; the invention further refers to a corresponding method in a gNB, and to a corresponding UE and gNB.Type: GrantFiled: September 25, 2019Date of Patent: January 7, 2025Assignee: Telefonaktiebolaget LM Ericsson (PUBL)Inventors: Mattias Frenne, Claes Tidestav
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Patent number: 12167368Abstract: A method of controlling radio transmission in a wireless communication network is described, the method comprising a radio device (10; 400; 700) receiving an indication of a set of first signals (31, 32, 33, 34, 35, 36) for associating the set of first signals (31, 32, 33, 34, 35, 36) with a second signal. The method comprises the radio device (10; 400; 700) receiving at least one of the first signals (31; 32, 33, 34, 35, 36); and in response to the indication, the radio device (10; 400; 700) estimating at least one parameter of the second signal based on the at least one received first signal. The method further comprises, based on the at least one estimated parameter, the radio device (10; 400; 700) processing at least one radio transmission (21) from the wireless communication network.Type: GrantFiled: August 9, 2019Date of Patent: December 10, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Erik Eriksson, Pål Frenger, Claes Tidestav
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Patent number: 12156243Abstract: 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: GrantFiled: November 22, 2022Date of Patent: November 26, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Icaro L. J. da Silva, Rui Fan, Claes Tidestav, Umut Ugurlu
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Patent number: 12156142Abstract: 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: GrantFiled: January 10, 2020Date of Patent: November 26, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Claes Tidestav, Niklas Wernersson
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Publication number: 20240388349Abstract: 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: ApplicationFiled: June 12, 2022Publication date: November 21, 2024Inventors: Axel GUTHMANN, Erik ERIKSSON, Anders LANDSTRÖM, Robert BALDEMAIR, Claes TIDESTAV, John SKÖRDEMAN, Qiang ZHANG
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Patent number: 12149923Abstract: 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: GrantFiled: June 9, 2021Date of Patent: November 19, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Andreas Nilsson, Mattias Frenne, Stephen Grant, Claes Tidestav
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Publication number: 20240357529Abstract: 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: ApplicationFiled: September 1, 2022Publication date: October 24, 2024Inventors: Andreas NILSSON, Siva MURUGANATHAN, Shiwei GAO, Claes TIDESTAV
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Publication number: 20240348302Abstract: 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: ApplicationFiled: August 3, 2022Publication date: October 17, 2024Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Claes TIDESTAV, Daniele DAVOLI, Andreas NILSSON, Siva MURUGANATHAN
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Publication number: 20240306181Abstract: 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: ApplicationFiled: May 7, 2024Publication date: September 12, 2024Inventors: Icaro L. J. da Silva, Rui Fan, Claes Tidestav, Umut Ugurlu