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).

  • Publication number: 20230422312
    Abstract: A method in a UE comprises: receiving a message from a network node comprising information about one or more sets of dedicated random access channel (RACH) resources, each set of dedicated RACH resources associated with a beam associated with a target cell; obtaining an estimate of beam quality for each beam associated with the sets of dedicated RACH resources; determining, based on the obtained estimate of beam quality, whether any beam associated with the one or more sets of dedicated RACH resources meets one or more criteria of a first set of criteria for performing random access; and performing random access based on whether any beam associated with the one or more sets of dedicated RACH resources meets the one or more criteria of the first set of criteria for performing random access.
    Type: Application
    Filed: September 10, 2023
    Publication date: December 28, 2023
    Inventors: Icaro L.J. Da Silva, Henrik Sahlin, Mats Folke, Janne Peisa, Jan Christoffersson
  • Patent number: 11856466
    Abstract: In accordance with particular embodiments, there is disclosed herein a method performed by a wireless device for handover. The method comprises receiving a first handover message from a source network node associated with a source cell. The first handover message comprises an identification of a target cell and access information associated with the target cell. The target cell is different than the source cell and comprises one or more beams. The method also includes identifying at least one beam from among the one or more beams of the target cell. The at least one beam is identified based on the identification of the target cell and the access information from the first handover message. The method further includes accessing the target cell using the identified at least one beam.
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: December 26, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Janne Peisa, Icaro L. J. Da Silva
  • Patent number: 11856555
    Abstract: A method and a first network node of a wireless network, for handling paging of a wireless device. A Radio Access Network Area, RANA, which is supported by the first network node, is registered in a database by network nodes supporting the RANA, including the first network node. The network nodes that support the RANA are then identified in the database. When it is detected that a wireless device needs to be paged in the RANA, e.g. for receiving data, a paging message is distributed to the identified set of network nodes as an instruction to perform radio transmission of the paging message. Further, which is available to the network nodes throughout the wireless network. Thereby, any network node in the wireless network, such as the first network node, is able to perform distribution of a paging message to all network nodes that support a particular RANA, as registered in the database.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: December 26, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Johan Rune, Icaro L. J. da Silva, Gunnar Mildh, Jose Luis Pradas
  • Publication number: 20230413318
    Abstract: Embodiments herein relate to a wireless device for handling communication of the wireless device in a wireless communication network, wherein a radio network node in the wireless communication network provides radio coverage over a cell. The wireless device receives from the radio network node, when the wireless device is in a first state, a beam configuration indicating which beam or beams of the cell the wireless device is allowed to select during a state transition or initial access. Furthermore, the wireless device performs an initial access to the cell or a state transition taking the beam configuration into account.
    Type: Application
    Filed: September 5, 2023
    Publication date: December 21, 2023
    Inventors: Janne Peisa, Icaro L. J. da Silva
  • Publication number: 20230413373
    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: Application
    Filed: August 7, 2023
    Publication date: December 21, 2023
    Inventors: Gunnar Mildh, Icaro L. J. Da Silva
  • Patent number: 11838760
    Abstract: A communication system including a host computer is provided herein. The host computer may include processing circuitry configured to provide user data and a communication interface configured to forward the user data to a cellular network for transmission to a user equipment (UE). The cellular network comprises a base station having a radio interface and base station processing circuitry. The base station processing circuitry configured to store a previously active security context for the UE, receive from the UE an RRCResumeRequest message including a security token, generate a temporary security context for the UE, use the temporary security context to verify the security token, send an RRC message to the UE, if no response to the RRC message is received from the UE, discard the temporary security context and retrieve the previously active security context. Thereafter, the base station transmits the user data for a host application.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: December 5, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gunnar Mildh, Icaro L. J. da Silva
  • Patent number: 11838810
    Abstract: A wireless device configured to acquire network support information associated with a neighbor cell, wherein the network support information indicates that the neighbor cell supports a Stand-Alone (SA) mode of operation and/or a Non-Stand-Alone (NSA) mode of operation; and transmit to a serving network node a report comprising identification information associated with the neighbour cell and the network support information indicating that the neighbor cell supports a SA mode of operation and/or a NSA mode of operation. A serving network node configured to receive a report transmitted by a wireless device, wherein the report comprises identification information associated with the neighbor cell and network support information indicating that the neighbor cell supports a Stand-Alone (SA) mode of operation and/or a Non-Stand-Alone (NSA) mode of operation; and determine, based on the report, a type of interface to establish between the serving network node and the neighbor network node.
    Type: Grant
    Filed: October 18, 2022
    Date of Patent: December 5, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Parisa Pakniat, Icaro L. J. Da Silva, Gunnar Mildh
  • Publication number: 20230380004
    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: August 1, 2023
    Publication date: November 23, 2023
    Inventors: Icaro L. J. da Silva, Gunnar Mildh
  • Patent number: 11825546
    Abstract: Methods and apparatuses are disclosed for updating a wait timer as a result of receiving one of a release message and a suspend message and/or configuring a wireless device (WD) to update a wait timer by determining the one of the release message and the suspend message to be communicated to the WD.
    Type: Grant
    Filed: March 21, 2023
    Date of Patent: November 21, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gunnar Mildh, Icaro L. J. Da Silva
  • Publication number: 20230370908
    Abstract: The invention refers to a wireless device and to operating the wireless terminal, UE, connected to a serving network node associated to a serving cell of a radio access network, RAN, the method comprising: receiving system information from a neighbour cell of the serving cell, determining from the system information if the neighbour cell does or does not broadcast a global cell identifier, CGI, of the neighbour cell; and if the neighbour cell does not broadcast the CGI, transmitting a global cell identifier, CGI, report to the serving network node, wherein the CGI report includes an indication that the neighbour cell does not broadcast the CGI of the neighbour cell. The invention further refers to a corresponding network node and to a method performed in the network node.
    Type: Application
    Filed: July 24, 2023
    Publication date: November 16, 2023
    Inventors: Reza MOOSAVI, Icaro L.J. DA SILVA, Pradeepa RAMACHANDRA, Fredrik GUNNARSSON
  • Publication number: 20230363028
    Abstract: Methods and apparatus are disclosed, including in an example a method performed by a wireless device configured with Multi-Radio Access Technology Dual Connectivity (MR-DC) for a first cell group and a second cell group. The method includes receiving, from a first network node, at least one message in a reconfiguration procedure for the second cell group. The at least one message indicates a mode of operation of the wireless device for the second cell group after the reconfiguration procedure for the second cell group has been applied by the wireless device.
    Type: Application
    Filed: August 6, 2021
    Publication date: November 9, 2023
    Inventors: Icaro L. J. DA SILVA, Stefan WAGER
  • Publication number: 20230354076
    Abstract: A wireless device configured for performing beam measurements receives measurement reporting parameters configuring the wireless device for reporting measurements and determines, for each of one or more serving frequencies corresponding to a serving cell or a neighboring cell in the serving frequency, a number of beam measurements to be maintained. The wireless device determines the number of beam measurements to be maintained based on one or more measurement reporting parameters indicating a maximum number of beams to be reported per cell. The wireless device maintains beam measurements for each of the serving frequencies according to the corresponding determined number of beam measurements to be maintained, for reporting in a measurement report.
    Type: Application
    Filed: July 7, 2023
    Publication date: November 2, 2023
    Inventor: Icaro L. J. da Silva
  • Publication number: 20230354122
    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: Application
    Filed: July 6, 2023
    Publication date: November 2, 2023
    Inventors: Riikka Susitaival, Icaro L. J. Da Silva, Janne Peisa, Edgar Ramos, Henning Wiemann
  • Patent number: 11805455
    Abstract: Embodiments include methods for a first node, configured to provide a serving cell to a user equipment (UE) in a radio access network, to determine core network types supported by a second node configured to provide neighbor cell(s) of the serving cell. Such embodiments include determining that a first cell identifier associated with a particular one of the neighbor cells is not included in a neighbor relations table maintained by the first node. Such embodiments also include sending, to the UE, a request to report a second cell identifier associated with the particular neighbor cell, the request including the first cell identifier. Such embodiments also include determining one or more core network types supported by the particular neighbor cell based on the content of a report from the UE. Other embodiments include complementary methods performed by a UE, as well as network nodes and UEs configured to perform such methods.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: October 31, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Malik Wahaj Arshad, Icaro L. J. da Silva
  • Patent number: 11799534
    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: July 13, 2022
    Date of Patent: October 24, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Icaro L. J. da Silva, Pradeepa Ramachandra, Helka-Liina Määttänen
  • Publication number: 20230337071
    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: Application
    Filed: June 23, 2023
    Publication date: October 19, 2023
    Inventors: Icaro L. J. DA SILVA, Helka-Liina MÄÄTTANEN, Pradeepa RAMACHANDRA
  • Patent number: 11792698
    Abstract: Systems and methods are disclosed herein that relate to handling of dormant state measurement configurations and associated measurements upon inter-Radio Access Technology (RAT) cell reselection. In some embodiments, a method performed by a wireless device comprises receiving one or more dormant state measurement configurations from a network node of a source RAT, performing measurements while in a dormant state in accordance with at least one of the one or more dormant state measurement configurations, and performing an inter-RAT cell reselection from the source RAT to a target RAT while in the dormant state. The method further comprises, upon performing the inter-RAT cell reselection, performing one or more actions to handle dormant state measurement configurations and/or measurements performed in accordance with dormant state measurement configurations. Corresponding embodiments of a wireless device are also disclosed.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: October 17, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Icaro L. J. da Silva, Patrik Rugeland, Oumer Teyeb, Jens Bergqvist, Pradeepa Ramachandra
  • Patent number: 11792668
    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: July 12, 2022
    Date of Patent: October 17, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Iana Siomina, Muhammad Kazmi, Christopher Callender, Helka-Liina Maattanen, Icaro L. J. Da Silva
  • Patent number: 11792635
    Abstract: A wireless device handles area update reports. The wireless device initiates a radio network area update, RNAU, responsive to detecting that the wireless device has entered a cell not belonging to a radio network area, RNA, configured for the wireless device. The wireless device receives, from the wireless network, a message indicating that the wireless device's attempt to perform the RNAU has been rejected. The message includes or is accompanied by an indication that a wait time value is applicable. Responsive to the message, the wireless device sets a reject wait timer to the wait time value and performs the RNAU upon expiry of the reject wait timer. In some embodiments, the wireless device sets a periodic RNAU timer to the wait time value, responsive to the message, and performs the RNAU upon expiry of the reject wait timer and the periodic RNAU timer.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: October 17, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gunnar Mildh, Icaro L. J. da Silva
  • Publication number: 20230328838
    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: Application
    Filed: June 14, 2023
    Publication date: October 12, 2023
    Inventors: Christofer Lindheimer, Malik Wahaj Arshad, Icaro L.J. da Silva, Gunnar Mildh, Riikka Susitaival