Patents by Inventor Icaro L. J. da Silva

Icaro L. J. da Silva 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).

  • SFTD AND ANR SPECIFIC REPORTING
    Publication number: 20250088893
    Abstract: Systems and methods for System Frame Number (SFN) Frame Time Difference (SFTD) reporting are disclosed. Embodiments of a method of operation of a User Equipment (UE) in a wireless network to perform SFTD measurements between a Primary Cell (PCell) of the UE and one or more other cells is provided. In some embodiments, the method comprises receiving, from a network node in the wireless network, a list of cells for which the UE can report SFTD measurements. The method further comprises performing SFTD measurements and reporting the SFTD measurements in accordance with the list of cells for which the UE can report SFTD measurements. In this manner, SFTD reporting is provided in an efficient manner.
    Type: Application
    Filed: November 22, 2024
    Publication date: March 13, 2025
    Inventors: Fredrik Gunnarsson, Pradeepa Ramachandra, Icaro L. J. Da Silva
  • Centralized unit-distributed unit communication associated to radio link failure report and beam failure recovery attempts
    Patent number: 12244492
    Abstract: According to certain embodiments, a method is performed by a network node comprising a CU. The method comprises receiving assistance information for mobility robustness optimization and forwarding the assistance information, configuration changes related to mobility robustness optimization, or both to a DU or to a second CU. According to certain embodiments, a method is performed by a network node comprising a DU. The method comprises receiving assistance information for mobility robustness optimization. The assistance information indicates that a failure may have originated in a cell of the DU. The method further comprises performing one or more parameter changes in one or more functions handled by the DU.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: March 4, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Pradeepa Ramachandra, Icaro L. J. Da Silva, Malik Wahaj Arshad, Ali Parichehrehteroujeni, Angelo Centonza
  • Cell global identifier reporting in a wireless communication system
    Patent number: 12238558
    Abstract: A wireless device (111) is configured to receive, from a network node (101), in a measurement reporting configuration information element (127) of a measurement configuration or a measurement identity information element (129) of a measurement configuration, an indication (128) of for which cell the wireless device (111) (111) is to report a cell global identifier, CGI. In embodiments in which the indication (128) is received in the measurement reporting configuration information element (127), for instance, the wireless device (111) may add a reporting configuration indicated by that information element to a list of reporting configurations at the wireless device (111), e.g., as opposed to updating an existing reporting configuration. Regardless, the wireless device (111) may also be configured to report a CGI for the cell indicated by the received indication (128).
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: February 25, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Tobias Ahlström, Icaro L. J. da Silva, Helka-Liina Määttanen, Parisa Pakniat, Kristina Zetterberg
  • Idle/inactive measurement handling during radio resource control state transitions
    Patent number: 12238560
    Abstract: According to certain embodiments, a method performed by a wireless device (110) for measurement reporting includes transmitting, to a network node (160), a first message to initiate a transition from a dormant state to a connected state. The wireless device receives, from the network node, a second message including an indication of whether the wireless device is to release or keep at least one measurement configuration for performing measurements while in the dormant state. Based on the first message, the wireless device determines whether to release or keep the at least one measurement configuration for performing measurements while the wireless device is in the dormant state.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: February 25, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Oumer Teyeb, Icaro L. J. da Silva
  • Release cause for transition from connected state
    Patent number: 12232205
    Abstract: Systems, methods, and apparatus for handling communications relating to suspending a user equipment in a radio access network (RAN) are disclosed. An example method includes the user equipment receiving a radio resource control (RRC) release message from a network node. The user equipment determines that the RRC release message includes a suspend configuration field. The user equipment applies delta signalling corresponding to a suspend configuration indicated by the suspend configuration field and transitions to an inactive state.
    Type: Grant
    Filed: June 14, 2023
    Date of Patent: February 18, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Christofer Lindheimer, Malik Wahaj Arshad, Icaro L. J. da Silva, Gunnar Mildh, Riikka Susitaival
  • Network architecture, methods, and devices for a wireless communications network
    Patent number: 12231284
    Abstract: Methods and apparatus in a fifth-generation wireless communications network, including an example method, in a wireless device, that includes determining a reporting quality threshold for a parameter related to channel state information (CSI); performing a measurement for each of a plurality of beams from a first predetermined set of beams for evaluation; evaluating the measurement for each of the plurality of beams against the reporting quality threshold; discontinuing the performing and evaluating of measurements in response to determining that the reporting quality threshold is met for one of the beams, such that one or more beams in the first predetermined set of beams are not measured and evaluated; and reporting, to the wireless communications network, CSI for the one of the beams.
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: February 18, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan Parkvall, Janne Peisa, Gunnar Mildh, Robert Baldemair, Stefan Wager, Jonas Kronander, Karl Werner, Richard Abrahamsson, Ismet Aktas, Peter Alriksson, Junaid Ansari, Shehzad Ali Ashraf, Henrik Asplund, Fredrik Athley, Håkan Axelsson, Joakim Axmon, Johan Axnäs, Kumar Balachandran, Gunnar Bark, Jan-Erik Berg, Andreas Bergström, Håkan Björkegren, Nadia Brahmi, Cagatay Capar, Anders Carlsson, Andreas Cedergren, Mikael Coldrey, Icaro L. J. da Silva, Erik Dahlman, Ali El Essaili, Ulrika Engström, Mårten Ericson, Erik Eriksson, Mikael Fallgren, Rui Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskär, Johan Furuskog, Virgile Garcia, Ather Gattami, Fredrik Gunnarsson, Ulf Gustavsson, Bo Hagerman, Fredrik Harrysson, Ning He, Martin Hessler, Kimmo Hiltunen, Songnam Hong, Dennis Hui, Jörg Huschke, Tim Irnich, Sven Jacobsson, Niklas Jaldén, Simon Järmyr, Zhiyuan Jiang, Martin Johansson, Niklas Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landström, Christina Larsson, Gen Li, Bo Lincoln, Lars Lindbom, Robert Lindgren, Bengt Lindoff, Fredrik Lindqvist, Jinhua Liu, Thorsten Lohmar, Qianxi Lu, Lars Manholm, Ivana Maric, Jonas Medbo, Qingyu Miao, Reza Moosavi, Walter Müller, Elena Myhre, Johan Nilsson, Karl Norrman, Bengt-Erik Olsson, Torgny Palenius, Sven Petersson, Jose Luis Pradas, Mikael Prytz, Olav Queseth, Pradeepa Ramachandra, Edgar Ramos, Andres Reial, Thomas Rimhagen, Emil Ringh, Patrik Rugeland, Johan Rune, Joachim Sachs, Henrik Sahlin, Vidit Saxena, Nima Seifi, Yngve Selén, Eliane Semaan, Sachin Sharma, Cong Shi, Johan Sköld, Magnus Stattin, Anders Stjernman, Dennis Sundman, Lars Sundström, Miurel Isabel Tercero Vargas, Claes Tidestav, Sibel Tombaz, Johan Torsner, Hugo Tullberg, Jari Vikberg, Peter von Wrycza, Thomas Walldeen, Anders Wallen, Pontus Wallentin, Hai Wang, Ke Wang Helmersson, Jianfeng Wang, Yi-Pin Eric Wang, Niclas Wiberg, Emma Wittenmark, Osman Nuri Can Yilmaz, Ali Zaidi, Zhan Zhang, Zhang Zhang, Yanli Zheng
  • Method for performing radio link monitoring
    Patent number: 12225396
    Abstract: A method for performing radio link monitoring comprises performing, by a user equipment (UE), a radio link monitoring (RLM) procedure with first RLM parameters; receiving, at the UE, a message including at least one second RLM parameter; identifying, by the UE, a difference between the first RLM parameters and the at least one second RLM parameter; and resetting, at the UE, at least one of the first RLM parameters in response to identifying the difference between the first RLM parameters and the at least one second RLM parameter. The method may configure the UE upon performing RLM by adapting the difference between the current RLM parameters and the future parameters, so that the UE behavior may become clear.
    Type: Grant
    Filed: October 11, 2023
    Date of Patent: February 11, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Iana Siomina, Muhammad Kazmi, Christopher Callender, Helka-Liina Maattanen, Icaro L. J. Da Silva
  • Handling re-establishment rejection
    Patent number: 12200794
    Abstract: A method by a network node is provided for handling a re-establishment request. The method includes receiving, from a wireless device, a first request for re-establishment of a connection with the network node in a first cell. The network node determines that a load on the network node exceeds a threshold amount. In response to determining that the load on the network node exceeds the threshold amount, the network node ignores the first request for re-establishment.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: January 14, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Oumer Teyeb, Gunnar Mildh, Alessio Terzani, Icaro L. J. Da Silva
  • Handling of inactive parameters upon release and re-suspend
    Patent number: 12200806
    Abstract: Systems and methods are disclosed herein for updating stored User Equipment (UE) context information upon re-suspend of the UE in response to a resume request from the UE. In some embodiments, a method in a UE comprises transmitting a Radio Resource Control (RRC) resume request message and, in response to the RRC resume request message, receiving an RRC connection release message with an indication for suspend. The method further comprises, in response to receiving the RRC connection release message with an indication for suspend, replacing information in a stored Access Stratum (AS) context of the UE with new information.
    Type: Grant
    Filed: August 7, 2023
    Date of Patent: January 14, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gunnar Mildh, Icaro L. J. Da Silva
  • Methods for Suspending Inactive when Resuming and Resuming Inactive when Suspending
    Publication number: 20250016874
    Abstract: According to an aspect, a wireless device, operating in a wireless network, handles transitions from Radio Resource Control (RRC) connected state to an RRC inactive state. The wireless device receives, from the wireless network, a message indicating either that the wireless device is to enter the RRC inactive state or that the wireless device is to remain in the RRC inactive state. The wireless device, responsive to the message, uses, for inactive state operation, at least one previously stored inactive state parameter corresponding to a parameter omitted from the message.
    Type: Application
    Filed: September 20, 2024
    Publication date: January 9, 2025
    Inventors: Icaro L.J. da Silva, Gunnar Mildh
  • User equipment, base station and methods in a radio communications network
    Patent number: 12192047
    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: December 12, 2023
    Date of Patent: January 7, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Icaro L. J. Da Silva, Claes Tidestav
  • Enhancements to mobility reference signals for radio link monitoring in a beam-based system
    Patent number: 12191935
    Abstract: 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: Grant
    Filed: September 15, 2020
    Date of Patent: January 7, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Icaro L. J. da Silva, Rui Fan, Pradeepa Ramachandra, Claes Tidestav, Umut Ugurlu
  • Resolving ambiguities related to NR cell quality derivation
    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
  • Conditional mobility triggering based on beam information
    Patent number: 12192747
    Abstract: Methods performed by wireless devices and network nodes for conditional mobility procedures are disclosed. A method performed by a wireless device comprises receiving a conditional mobility configuration from a source network node containing at least a triggering condition for conditional mobility based on beam measurement information; and performing beam measurements for at least one beam of at least one cell, to obtain beam measurement information for the at least one beam. A method performed by a network node comprises defining a conditional mobility configuration containing at least a triggering condition for conditional mobility based on beam measurement information; and initiating the transmission of the conditional mobility configuration to at least one user equipment. Also disclosed are base stations and wireless devices configured to perform the methods.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: January 7, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Icaro L. J. Da Silva, Johan Rune
  • Link switch in a wireless communication system
    Patent number: 12192746
    Abstract: A wireless communication device is configured for use in a wireless communication system. The device in this regard is configured to receive a command that commands the device to perform a link switch from a source link to a target link responsive to fulfillment of a condition. The command may indicate a target link configuration relative to a source link configuration. The device is also configured to store information from which the target link configuration indicated by the command is determinable irrespective of any change to the source link configuration occurring after receipt of the command. In some embodiments, the device is configured to, responsive to fulfillment of the condition, perform a link switch from the source link to the target link using the target link configuration as determined from the stored information.
    Type: Grant
    Filed: July 6, 2023
    Date of Patent: January 7, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Riikka Susitaival, Icaro L. J. Da Silva, Janne Peisa, Edgar Ramos, Henning Wiemann
  • Triggered measurement reporting for wireless communications
    Patent number: 12185169
    Abstract: A method is performed by a wireless device in a network. The wireless device detects a triggering event related to a procedure for a handover from a source network node to a target network node in which the wireless device relies on downlink beam selection. The wireless device determines measurement information to include in a message to send to the target network node. The measurement information is obtained by measuring one or more beams according to at least one of a radio link management configuration, a beam management configuration, and a measurement configuration. In response to detecting the triggering event, the determined measurement information in the message is sent to the target network node.
    Type: Grant
    Filed: June 23, 2023
    Date of Patent: December 31, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Icaro L. J. Da Silva, Helka-Liina Määttanen, Pradeepa Ramachandra
  • Multi-RAT access stratum security
    Patent number: 12185101
    Abstract: The present disclosure generally relates to the field of security context setup. More specifically, the present disclosure relates to techniques of supporting security context setup in a wireless communication network. A method embodiment relates to supporting security context setup in a wireless communication network, the method comprising initiating (S304), by a radio access network (RAN) element of the wireless communication network, Access Stratum (AS) security context setup for a first Radio Access Technology (RAT) and a second RAT in a common signaling procedure.
    Type: Grant
    Filed: April 19, 2023
    Date of Patent: December 31, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Osman Nuri Can Yilmaz, Icaro L. J. Da Silva, Karl Norrman, Paul Schliwa-Bertling, Stefan Wager
  • CONDITIONAL HANDOVER UPON MEASUREMENT CONFIGURATION MODIFICATION
    Publication number: 20240430758
    Abstract: A method by a wireless device includes receiving, from a network node, an indication identifying at least a first configuration identifier for modification. The first configuration identifier is associated with a conditional reconfiguration. The wireless device replaces at least a portion of the conditional reconfiguration based on the indication. The wireless devices determines that the first configuration identifier is associated with at least a first trigger condition for performing a conditional handover and stops monitoring for the first trigger condition.
    Type: Application
    Filed: September 5, 2024
    Publication date: December 26, 2024
    Inventor: Icaro L. J. da Silva
  • Network Architecture, Methods, and Devices for a Wireless Communications Network
    Publication number: 20240421931
    Abstract: Methods and apparatus in a fifth-generation wireless communications, including an example method, in a wireless device, that includes receiving a downlink signal comprising an uplink access configuration index, using the uplink access configuration index to identify an uplink access configuration from among a predetermined plurality of uplink access configurations, and transmitting to the wireless communications network according to the identified uplink access configuration. The example method further includes, in the same wireless device, receiving, in a first subframe, a first Orthogonal Frequency-Division Multiplexing (OFDM) transmission formatted according to a first numerology and receiving, in a second subframe, a second OFDM transmission formatted according to a second numerology, the second numerology differing from the first numerology. Variants of this method, corresponding apparatuses, and corresponding network-side methods and apparatuses are also disclosed.
    Type: Application
    Filed: January 2, 2024
    Publication date: December 19, 2024
    Inventors: Stefan Parkvall, Janne Peisa, Gunnar Mildh, Robert Baldemair, Stefan Wager, Jonas Kronander, Karl Werner, Richard Abrahamsson, Ismet Aktas, Peter Alriksson, Junaid Ansari, Shehzad Ali Ashraf, Henrik Asplund, Fredrik Athley, Håkan Axelsson, Joakim Axmon, Johan Axnäs, Kumar Balachandran, Gunnar Bark, Jan-Erik Berg, Andreas Bergström, Håkan Björkegren, Nadia Brahmi, Cagatay Capar, Anders Carlsson, Andreas Cedergren, Mikael Coldrey, Icaro L. J. da Silva, Erik Dahlman, Ali El Essaili, Ulrika Engström, Mårten Ericson, Erik Eriksson, Mikael Fallgren, Rui Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskär, Johan Furuskog, Virgile Garcia, Ather Gattami, Fredrik Gunnarsson, Ulf Gustavsson, Bo Hagerman, Fredrik Harrysson, Ning He, Martin Hessler, Kimmo Hiltunen, Songnam Hong, Dennis Hui, Jörg Huschke, Tim Irnich, Sven Jacobsson, Niklas Jaldén, Simon Järmyr, Zhiyuan Jiang, Martin Johansson, Niklas Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landström, Christina Larsson, Gen Li, Lars Lindbom, Robert Lindgren, Bengt Lindoff, Fredrik Lindqvist, Jinhua Liu, Thorsten Lohmar, Qianxi Lu, Lars Manholm, Ivana Maric, Jonas Medbo, Qingyu Miao, Reza Moosavi, Walter Müller, Elena Myhre, Karl Norrman, Bengt-Erik Olsson, Torgny Palenius, Sven Petersson, Jose Luis Pradas, Mikael Prytz, Olav Queseth, Pradeepa Ramachandra, Edgar Ramos, Andres Reial, Thomas Rimhagen, Emil Ringh, Patrik Rugeland, Johan Rune, Joachim Sachs, Henrik Sahlin, Vidit Saxena, Nima Seifi, Yngve Selén, Eliane Semaan, Sachin Sharma, Cong Shi, Johan Sköld, Magnus Stattin, Anders Stjernman, Dennis Sundman, Lars Sundström, Miurel Isabel Tercero Vargas, Claes Tidestav, Sibel Tombaz, Johan Torsner, Hugo Tullberg, Jari Vikberg, Peter von Wrycza, Thomas Walldeen, Pontus Wallentin, Hai Wang, Ke Wang Helmersson, Jianfeng Wang, Yi-Pin Eric Wang, Niclas Wiberg, Emma Wittenmark, Osman Nuri Can Yilmaz, Ali Zaidi, Zhan Zhang, Zhang Zhang, Yanli Zheng
  • Handling a Secondary Cell Group Configuration
    Publication number: 20240414795
    Abstract: A method performed by a User Equipment (UE) for handling a Secondary Cell Group (SCG) configuration in a wireless communications network is provided. The UE receives, from a network node, an SCG configuration and a trigger condition related to the signal quality of a cell associated with the SCG configuration. The UE then performs signal quality measurements of a cell associated with the SCG configuration. When the trigger condition of the cell is fulfilled according to the received SCG configuration, the UE applies the SCG configuration associated to the cell fulfilling the trigger condition.
    Type: Application
    Filed: June 12, 2024
    Publication date: December 12, 2024
    Inventors: Osman Nuri Can Yilmaz, Oumer Teyeb, Patrik Rugeland, Lian Araujo, Icaro L. J. Da Silva