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).

  • Conditional mobility in a wireless communication network
    Patent number: 12120570
    Abstract: A wireless device (16) is configured to receive, from a radio network node, a message (34) that includes a condition monitoring configuration (36) and a conditional mobility configuration (38). The condition monitoring configuration (36) configures the wireless device (16) to monitor a condition. The wireless device (16) is to apply the conditional mobility configuration (38) when the wireless device (16) detects fulfillment of the condition. The wireless device (16) is configured to process the condition monitoring configuration (36) upon receiving the message (34), and to process the conditional mobility configuration (38) subject to a processing precondition being met.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: October 15, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Cecilia Eklöf, Icaro L. J. Da Silva, Mattias Bergström
  • Conditional handover upon measurement configuration modification
    Patent number: 12114216
    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: Grant
    Filed: August 14, 2020
    Date of Patent: October 8, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Icaro L. J. da Silva
  • Methods for activation/deactivation of measurement configurations via linkage
    Patent number: 12101657
    Abstract: A method for performing measurements in a wireless device is provided. The method comprises: storing a plurality of received measurement configurations, which are linked to each other; applying a first measurement configuration from the plurality of measurement of configurations; and determining whether to apply a second measurement configuration from the plurality of measurement configurations based on the first measurement configuration.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: September 24, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ali Nader, Oumer Teyeb, Mattias Bergström, Icaro L. J. Da Silva, Joakim Axmon
  • Methods for cancelling or update of conditional mobility procedures
    Patent number: 12096295
    Abstract: Methods performed by a first node in a radio access network (RAN) for mobility of a user equipment (UE) served by a second node in the RAN. Such methods include receiving (1310), from the second node, a request for a mobility procedure for the UE towards at least one candidate target cell associated with the first node. Such methods include determining (1320) if the UE can be accepted for the requested mobility procedure and, if so, allocating resources to support mobility of the UE. Such methods include transmitting (1330), to the second node, a response that includes a configuration for the mobility procedure and indicates the UE can be accepted unless a cancelling message is subsequently received from the second node. Such methods include determining (1350) that the configuration is no longer valid, and transmitting (1360), to the second node, an indication that the configuration is no longer valid.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: September 17, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Icaro L. J. Da Silva, Julien Muller, Sofia Ek
  • RLM and Beam Failure Detection based on a Mix of Different Reference Signals
    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
  • Radio Network Node, Wireless Device and Methods Performed Therein
    Publication number: 20240306027
    Abstract: A radio network node, a wireless device and methods performed therein for handling communication in a wireless communication network are provided. The method performed by the wireless device comprises obtaining an indication indicating which beams to be included in a cell quality derivation of a cell; and performing one or more measurements on one or more beams, which one or more beams are selected based on the obtained indication. Furthermore, a computer program product and a computer readable storage medium are also provided herein.
    Type: Application
    Filed: March 14, 2024
    Publication date: September 12, 2024
    Inventors: Pradeepa Ramachandra, Icaro L. J. Da Silva, Helka-Liina Määttanen
  • Handling of measurement configuration upon conditional mobility execution
    Patent number: 12082068
    Abstract: Embodiments include methods for conditional mobility in a radio access network (RAN), performed by a user equipment (UE). Such methods include receiving, from one or more RAN nodes (e.g., source RAN node and/or target RAN node), one or more mobility-related messages that include: a first indication of a mobility operation; a second indication of a triggering condition for the mobility operation; a second measurement configuration related to the triggering condition; and a third measurement configuration related to one or more target cells. Such methods also include, based on the second measurement configuration, detecting fulfillment of the triggering condition with respect to a particular one of the target cells and executing the mobility operation towards the particular target cell, and subsequently performing and reporting third measurements in the particular target cell based on the third measurement configuration.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: September 3, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Cecilia Eklöf, Icaro L. J. Da Silva, Pradeepa Ramachandra
  • OPTIMIZED RECONFIGURATION OF RLM AND BEAM MONITORING PARAMETERS
    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
  • Measurement reporting timer
    Patent number: 12063530
    Abstract: According to certain embodiments, a method in a wireless device for measurement reporting comprises: receiving an instruction to perform measurement reporting for a neighbor cell: determining, based at least on a radio access technology (RAT) of the neighbor cell and a frequency range of the neighbor cell, a measurement reporting timer value for performing the measurement reporting; and measuring a radio signal of the neighbor cell during the time specified by the determined measurement reporting timer value.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: August 13, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Reza Moosavi, Icaro L. J. Da Silva, Fredrik Gunnarsson, Pradeepa Ramachandra
  • MEASUREMENT CONFIGURATION OF USER EQUIPMENT
    Publication number: 20240267777
    Abstract: Systems, methods, and apparatus for performing measurement configuration using a user equipment, UE, and a network node are disclosed. An example method performed by a UE includes receiving a measurement configuration from a network node, where the measurement configuration specifies a reference frequency corresponding to a set of one or more carriers. The measurement configuration further specifies an offset from the reference frequency. The UE performs measurements on a reference signal located at the offset from the reference frequency and uses the measurements for one or more radio operations.
    Type: Application
    Filed: April 19, 2024
    Publication date: August 8, 2024
    Inventors: Icaro L. J. DA SILVA, Muhammad Ali KAZMI, Helka-Liina MÄÄTTANEN, Iana SIOMINA
  • SYSTEMS AND METHODS FOR PREVENTING HANDOVER CAUSED BY AN INSECURE MESSAGE FROM A NETWORK NODE
    Publication number: 20240259900
    Abstract: Systems, methods, and apparatus for handling messages from network nodes of a wireless communications system are disclosed. An example method performed by a terminal includes receiving a message from a network node. The terminal determines that the message contains a reconfigurationWithSync field and that security is not activated when the message is received. Responsive to the determining, the terminal prevents triggering of a handover operation.
    Type: Application
    Filed: April 11, 2024
    Publication date: August 1, 2024
    Inventors: Icaro L. J. DA SILVA, Patrik RUGELAND
  • Enhanced measurement filtering configurations for radio-link management and radio resource management
    Patent number: 12052599
    Abstract: A wireless device is configured to perform measurements for radio resource management (RRM) and/or radio link monitoring (RLM). The wireless device performs a plurality of radio measurements. The wireless device filters at least a first subset of the radio measurements using a first filtering configuration and filters at least a second subset of the radio measurements using a second filtering configuration, where the second filtering configuration differs from the first filtering configuration. The first and second filtering configurations apply to first and second different types of reference signals, respectively, or to beam-level measurements and cell-level measurements, respectively.
    Type: Grant
    Filed: August 15, 2022
    Date of Patent: July 30, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Icaro L. J. da Silva, Muhammad Kazmi, Helka-Liina Määttänen, Iana Siomina
  • Handling of periodic radio access network (RAN) based notification area (RNA) timer
    Patent number: 12052793
    Abstract: A method and wireless device for handling a periodic RNA update timer are disclosed. A method is implemented in a wireless device (WD) for stopping an update timer based on a condition including that the WD: receives an RRC Setup message triggering transition of the WD to an RRC_CONNECTED state in response to an RRC Resume request message; receives an RRC Suspend message indicating that the WD is to stay in an RRC_INACIVE state in response to an RRC Resume Request message; receives an RRC Release message triggering transition of the WD to an RRC_IDLE state in response to an RRC Resume Request message; fails to receive an RRC Resume message, RRC Suspend message or an RRC Release message after sending an RRC Resume Request message; or the WD enters the RRC_IDLE state from the RRC-INACTIVE state without transitioning through the RRC_CONNECTED state.
    Type: Grant
    Filed: May 9, 2023
    Date of Patent: July 30, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gunnar Mildh, Icaro L. J. Da Silva
  • Handling a secondary cell group configuration
    Patent number: 12035393
    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 (801) 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 (803) 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 (804) the SCG configuration associated to the cell fulfilling the trigger condition.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: July 9, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Osman Nuri Can Yilmaz, Oumer Teyeb, Patrik Rugeland, Lian Araujo, Icaro L. J. Da Silva
  • Network architecture, methods, and devices for a wireless communications network
    Patent number: 12021609
    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: Grant
    Filed: January 5, 2023
    Date of Patent: June 25, 2024
    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, 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
  • User equipment, target network node and methods in a wireless communications network
    Patent number: 12022340
    Abstract: A method performed by a User Equipment (UE) in a wireless communications network is provided. When a condition is fulfilled for accessing a target cell, the UE sends a first message to the target network node. The first message indicates that the condition is fulfilled for accessing the target cell. The UE then obtains as a response to the first message, an indication that an access to the target cell is rejected, which indication protects the target cell to be accessed by the UE.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: June 25, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventor: Icaro L. J. Da Silva
  • Wireless device mobility between wireless communication networks
    Patent number: 12022338
    Abstract: A wireless device suspends a connection with a first access network and enters an inactive state. While the connection with the first access network is suspended and the wireless device is in the inactive state, the wireless device camps in a specific area of a second wireless communication network that is included in a notification area within which the wireless device is allowed to move without notifying either the second wireless communication network or a first wireless communication network that includes the first access network. Upon camping in the specific area, the wireless device starts a timer. Responsive to expiry of the timer, the wireless device switches from the inactive state to an idle state and/or transmits to the second access network signaling indicating that the wireless device is in the specific area or that the wireless device requests a connection to the second access network.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: June 25, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Patrik Rugeland, Icaro L. J. Da Silva, Gunnar Mildh
  • METHOD AND DEVICE FOR RANDOM ACCESS FOR BEAM FAILURE RECOVERY
    Publication number: 20240204852
    Abstract: A method for random access for beam failure recovery. In the method, a random access configuration for the beam failure recovery is received. In the event of a beam failure, a random access procedure is performed according to the random access configuration.
    Type: Application
    Filed: February 29, 2024
    Publication date: June 20, 2024
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Rui FAN, Icaro L. J. DA SILVA, Helka-Liina MÄÄTTANEN
  • User Equipment, Base Station and Methods in a Radio Communications Network
    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
  • MEASUREMENT REPORTING ENHANCEMENTS IN BEAM BASED SYSTEMS
    Publication number: 20240195459
    Abstract: In accordance with particular embodiments, there is disclosed herein a method performed by a wireless device for measurement reporting. The method includes detecting a first number of beams. The method also includes measuring one or more characteristics of a second number of beams. The second number of beams comprises one or more beams of the first number of beams. The method additionally includes generating a measurement report that includes beam measurement information derived from the measurement of the one or more characteristics of the second number of beams. The method further includes transmitting the measurement report with the beam measurement information to a network node.
    Type: Application
    Filed: February 27, 2024
    Publication date: June 13, 2024
    Inventors: Icaro L. J. DA SILVA, Pradeepa Ramachandra