Patents by Inventor Icaro Leonardo J. Da Silva

Icaro Leonardo 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).

  • Patent number: 11394483
    Abstract: The disclosure relates to a method in a wireless device for transmitting an uplink signalling message in a wireless communication network. The wireless device is connected to a first network element over at least a first and a second wireless link. The method comprises determining a transmission mode among alternative transmission modes for transmitting the uplink signalling message. The alternative transmission modes comprise: transmitting on the first wireless link; transmitting on the second wireless link; and transmitting on both the first and the second wireless links. The method also comprises transmitting the uplink signalling message according to the determined transmission mode. The disclosure also relates to a corresponding method performed in the network element, and to the corresponding apparatus.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: July 19, 2022
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Jari Vikberg, Gunnar Mildh, Johan Rune, Icaro Leonardo J. Da Silva, Pontus Wallentin
  • Publication number: 20220159518
    Abstract: Methods and systems for resume request followed by release and redirect are herein provided. According to one aspect, a method performed by a User Equipment for communicating within a telecommunications network comprises: while in a Radio Resource Control (RRC) INACTIVE state, sending, to a base station, a request to resume communication, and, without entering an RRC CONNECED state, receiving, from the base station, an instruction to release and redirect; and in response to receiving the instruction to release and redirect, performing cell selection in a Radio Access Technology and attempting to establish or resume communication with the selected cell.
    Type: Application
    Filed: February 3, 2022
    Publication date: May 19, 2022
    Inventors: Icaro Leonardo J. Da Silva, Oscar Ohlsson
  • Publication number: 20220150739
    Abstract: Systems and methods related to early measurement reporting are disclosed. In some embodiments, a method performed by a wireless device in a cellular communications system comprises transmitting measurements with a first message to a network node. The first message is a request to resume a connection of the wireless device with a target cell, and the measurements are measurements performed by the wireless device while in a dormant state. Corresponding embodiments of a wireless device are also disclosed. Embodiments of a method of operation of a wireless device for reception of a request for early measurements in association with a paging message and corresponding embodiments of a wireless device are also disclosed. Embodiments of methods of operation of a network node and corresponding embodiments of a network node are also disclosed.
    Type: Application
    Filed: February 3, 2020
    Publication date: May 12, 2022
    Inventors: Icaro Leonardo J. Da Silva, Antonino Orsino, Jens Bergqvist, Osman Nuri Can Yilmaz, Oumer Teyeb, Patrik Rugeland
  • Publication number: 20220132607
    Abstract: A method performed by a network node for handling a multi connectivity configuration for a User Equipment (UE) resuming into connected mode from inactive mode in a wireless communications network is provided. The UE was multi connected to a first radio node and a second radio node before it entered into inactive mode. The network node receives a resume request from the UE. The network node then decides whether or not to trigger a role switch of any one or more out of: the first radio node and the second radio node for the multi connectivity configuration based on a certain condition. The role switch comprises any one out of: switching the role of the first radio node from Master Node, MN, to Secondary Node, SN, and switching the role of the second radio node from SN to MN.
    Type: Application
    Filed: February 13, 2019
    Publication date: April 28, 2022
    Inventors: Osman Nuri Can Yilmaz, Oumer Teyeb, Patrik Rugeland, Icaro Leonardo J. Da Silva, Gunnar Mildh
  • Publication number: 20210400756
    Abstract: Embodiments described herein relate to methods and apparatuses for performing a re-establishment procedure. A method in a user equipment comprises: receiving a re-establishment message; upon reception of the re-establishment message, monitoring for an indication of an integrity check failure received from lower layers, wherein the indication relates to a first message or a second message received by the UE after transmitting a re-establishment request; responsive to the indication of the integrity check failure, performing actions upon going into an RRC_IDLE mode of operation; indicating a connection failure to upper layers; and based on the indication, upper layers triggering a recovery procedure.
    Type: Application
    Filed: August 29, 2019
    Publication date: December 23, 2021
    Inventors: Icaro Leonardo J. DA SILVA, Magnus STATTIN
  • Patent number: 11140590
    Abstract: Embodiments herein relate to a method performed by a second network node for handling neighbour relationships between radio network nodes in a wireless communication network. The second network node initiates a neighbour relationship establishment process in the wireless communication network by transmitting an indication to a second radio network node or a first network node. The indication indicates the second radio network node to transmit an identifier of a reference signal handler associated with a reference signal of the second radio network node along with a transmission of the reference signal.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: October 5, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Pradeepa Ramachandra, Stefan Engström, Reza Moosavi, Claes Tidestav, Andres Reial, Icaro Leonardo J. Da Silva, Fredrik Gunnarsson, Kristina Zetterberg, Pål Frenger
  • Patent number: 11122472
    Abstract: In some embodiments herein a wireless device for handling communication of the wireless device in a wireless communication network is provided. The wireless communication network comprises a radio network node configured to serve the wireless device in a serving cell. The wireless device is configured to perform a beam tracking of the serving cell for tracking one or more beams of the serving cell based on measured signal strength or measured signal quality, and to detect a beam failure process in the serving cell. The wireless device is further configured to, in response to detection of the beam failure process, trigger a beam recovery process associated with a DL beam for the serving cell, wherein the DL beam is selected based on the beam tracking performed prior to detecting the beam failure process.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: September 14, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Icaro Leonardo J. Da Silva
  • Publication number: 20200383026
    Abstract: A method of operation of a wireless communication device to perform handover from a source cell to a target cell in a wireless communication system is provided. The wireless communication device performs (202) a beam tracking procedure for one or more neighbor cells to provide, for each neighbor cell, a list of tracked beams for the neighbor cell. The wireless communication device receives (212) a handover command from a source radio access node that instructs the wireless communication device to perform a handover from a source cell served by the source radio access node to a target cell served by a target radio access node. The target cell is one of the one or more neighbor cells for which the beam tracking procedure is performed. The wireless communication device then selects (214) a beam of the target cell from the list of tracked beams for the target cell based on random access resource configuration and/or a quality threshold.
    Type: Application
    Filed: June 15, 2020
    Publication date: December 3, 2020
    Inventors: Janne Peisa, Icaro Leonardo J. Da Silva, Pradeepa Ramachandra
  • Publication number: 20200314700
    Abstract: Methods and systems for resume request followed by release and redirect are herein provided. According to one aspect, a method performed by a User Equipment for communicating within a telecommunications network comprises: while in a Radio Resource Control (RRC) INACTIVE state, sending, to a base station, a request to resume communication, and, without entering an RRC CONNECED state, receiving, from the base station, an instruction to release and redirect; and in response to receiving the instruction to release and redirect, performing cell selection in a Radio Access Technology and attempting to establish or resume communication with the selected cell.
    Type: Application
    Filed: June 27, 2019
    Publication date: October 1, 2020
    Inventors: Icaro Leonardo J. Da Silva, Oscar Ohlsson
  • Publication number: 20200235845
    Abstract: The disclosure relates to a method in a wireless device for transmitting an uplink signalling message in a wireless communication network. The wireless device is connected to a first network element over at least a first and a second wireless link. The method comprises determining a transmission mode among alternative transmission modes for transmitting the uplink signalling message. The alternative transmission modes comprise: transmitting on the first wireless link; transmitting on the second wireless link; and transmitting on both the first and the second wireless links. The method also comprises transmitting the uplink signalling message according to the determined transmission mode. The disclosure also relates to a corresponding method performed in the network element, and to the corresponding apparatus.
    Type: Application
    Filed: April 8, 2020
    Publication date: July 23, 2020
    Inventors: Jari Vikberg, Gunnar Mildh, Johan Rune, Icaro Leonardo J. Da Silva, Pontus Wallentin
  • Publication number: 20200221360
    Abstract: Embodiments of systems and methods relating to a cellular communications network and Wireless Local Area Network (WLAN) integration/aggregation are disclosed. In some embodiments, a method of operation of a Mobility Management Entity (MME) of a cellular communications network comprises obtaining subscription information for a User Equipment (UE). The subscription information includes one or more Allowed Wireless Local Area Network/Unlicensed Band Solution (AWUBS) indications that are indicative of one or more AWUBSs that are allowed for the UE. The method further comprises sending a UE context related request to a base station in a radio access network of the cellular communications network. The UE context related request includes one of the one or more AWUBS indications.
    Type: Application
    Filed: March 20, 2020
    Publication date: July 9, 2020
    Inventors: Jari Vikberg, Icaro Leonardo J. Da Silva, Filip Mestanov, Oumer Teyeb
  • Patent number: 10694443
    Abstract: A method of operation of a wireless communication device to perform handover in a wireless communication system is provided. The wireless communication device performs a beam tracking procedure for one or more neighbor cells to provide, for each neighbor cell, a list of tracked beams for the neighbor cell. The wireless communication device receives a handover command from a source radio access node that instructs the wireless communication device to perform a handover from a source cell served by the source radio access node to a target cell served by a target radio access node. The target cell is one of the neighbor cells for which the beam tracking procedure is performed. The wireless communication device selects a beam of the target cell from the respective list of tracked beams based on random access resource configuration and/or a quality threshold and performs random access on the selected beam.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: June 23, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Janne Peisa, Icaro Leonardo J. Da Silva, Pradeepa Ramachandra
  • Patent number: 10651964
    Abstract: The disclosure relates to a method in a wireless device for transmitting an uplink signalling message in a wireless communication network. The wireless device is connected to a first network element over at least a first and a second wireless link. The method comprises determining a transmission mode among alternative transmission modes for transmitting the uplink signalling message. The alternative transmission modes comprise: transmitting on the first wireless link; transmitting on the second wireless link; and transmitting on both the first and the second wireless links. The method also comprises transmitting the uplink signalling message according to the determined transmission mode. The disclosure also relates to a corresponding method performed in the network element, and to the corresponding apparatus.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: May 12, 2020
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Jari Vikberg, Gunnar Mildh, Johan Rune, Icaro Leonardo J. Da Silva, Pontus Wallentin
  • Patent number: 10638391
    Abstract: Embodiments of systems and methods relating to a cellular communications network and Wireless Local Area Network (WLAN) integration/aggregation are disclosed. In some embodiments, a method of operation of a base station of a cellular communications network comprises obtaining one or more Allowed Wireless Local Area Network/Unlicensed Band Solution (AWUBS) indications from a core network of the cellular communications network. The one or more AWUBS indications are indicative of one or more AWUBSs allowed for a particular User Equipment (UE). The method further comprises using one of the one or more AWUBSs with respect to the UE. In this manner, the base station is enabled to obtain an indication(s) of the AWUBS(s) allowed for the UE and then use only an allowed AWUBS for that UE.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: April 28, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Jari Vikberg, Icaro Leonardo J. Da Silva, Filip Mestanov, Oumer Teyeb
  • Publication number: 20200120489
    Abstract: Embodiments herein relate to a network node for handling a Radio Access Network, (RAN) context information of a wireless device in a cell served by the network node in a wireless communications network. The network node stores the RAN context information of the wireless device when the wireless device is no longer in a connected state in the cell. When the wireless device has returned to a connected state in the cell, the network node receives information indicating a RAN context information from the wireless device. Also, the network node transmits, to the wireless device, information indicating that the wireless device is to use the indicated RAN context information in the cell when the indicated RAN context information is such that it can be reused with the RAN context information of the wireless device previously stored by the network node. Embodiments of the network node are also described.
    Type: Application
    Filed: December 11, 2019
    Publication date: April 16, 2020
    Inventors: Gunnar Mildh, Jari Vikberg, Johan Rune, Icaro Leonardo J. Da Silva, Pontus Wallentin
  • Publication number: 20200084089
    Abstract: In some embodiments herein a wireless device for handling communication of the wireless device in a wireless communication network is provided. The wireless communication network comprises a radio network node configured to serve the wireless device in a serving cell. The wireless device is configured to perform a beam tracking of the serving cell for tracking one or more beams of the serving cell based on measured signal strength or measured signal quality, and to detect a beam failure process in the serving cell. The wireless device is further configured to, in response to detection of the beam failure process, trigger a beam recovery process associated with a DL beam for the serving cell, wherein the DL beam is selected based on the beam tracking performed prior to detecting the beam failure process.
    Type: Application
    Filed: March 22, 2018
    Publication date: March 12, 2020
    Inventor: Icaro Leonardo J. Da Silva
  • Publication number: 20200053583
    Abstract: Embodiments herein relate to a method, performed by a User Equipment (UE), for handling Radio Resource Management (RRM) measurements for the UE, on a carrier comprising a plurality of Synchronization Sequence Blocks (SSBs). The UE receives, from a network node, an indication of a Measurement Object (MO) pointing to a frequency location of a primary SSB. The UE further performs measurements on the primary SSB based on the indicated MO. Embodiments herein further relate to a method, performed by a network node, for handling RRM measurements for the UE, on a carrier comprising a plurality of SSBs. The network node determines a primary SSB out of the plurality of SSBs on the carrier. The network node further sends, to the UE, an indication of a MO pointing to a frequency location of the primary SSB.
    Type: Application
    Filed: September 12, 2018
    Publication date: February 13, 2020
    Inventors: Helka-Liina Määttänen, Erik Dahlman, Icaro Leonardo J. Da Silva, Riikka Susitaival
  • Patent number: 10548002
    Abstract: Embodiments herein relate to a network node for handling a Radio Access Network, (RAN) context information of a wireless device in a cell served by the network node in a wireless communications network. The network node stores the RAN context information of the wireless device when the wireless device is no longer in a connected state in the cell. When the wireless device has returned to a connected state in the cell, the network node receives information indicating a RAN context information from the wireless device. Also, the network node transmits, to the wireless device, information indicating that the wireless device is to use the indicated RAN context information in the cell when the indicated RAN context information is such that it can be reused with the RAN context information of the wireless device previously stored by the network node. Embodiments of the network node are also described.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: January 28, 2020
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Gunnar Mildh, Jari Vikberg, Johan Rune, Icaro Leonardo J. Da Silva, Pontus Wallentin
  • Patent number: 10536862
    Abstract: Embodiments herein relate to a radio network node for handling signaling in a wireless communication network. The radio network node is configured to transmit synchronization signals with a first periodicity for wireless devices in a service area of the radio network node. The radio network node is further configured to detect one or more wireless devices being in a connected mode and incoming from a handover, or moving to the connected mode within the service area or within a neighborhood of the radio network node; and to trigger in response to detecting the one or more wireless devices, a transmission of additional reference signals for performing measurements on.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: January 14, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Pradeepa Ramachandra, Icaro Leonardo J. Da Silva, Reza Moosavi
  • Publication number: 20190349830
    Abstract: A method of operation of a wireless communication device to perform handover in a wireless communication system is provided. The wireless communication device performs a beam tracking procedure for one or more neighbor cells to provide, for each neighbor cell, a list of tracked beams for the neighbor cell. The wireless communication device receives a handover command from a source radio access node that instructs the wireless communication device to perform a handover from a source cell served by the source radio access node to a target cell served by a target radio access node. The target cell is one of the neighbor cells for which the beam tracking procedure is performed. The wireless communication device selects a beam of the target cell from the respective list of tracked beams based on random access resource configuration and/or a quality threshold and performs random access on the selected beam.
    Type: Application
    Filed: May 31, 2018
    Publication date: November 14, 2019
    Inventors: Janne Peisa, Icaro Leonardo J. Da Silva, Pradeepa Ramachandra