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).
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Publication number: 20240137817Abstract: 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: ApplicationFiled: December 7, 2023Publication date: April 25, 2024Inventors: Icaro Leonardo J. Da Silva, Oscar Ohlsson
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Publication number: 20240129825Abstract: 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: ApplicationFiled: December 21, 2023Publication date: April 18, 2024Inventors: Janne Peisa, Icaro Leonardo J. Da Silva, Pradeepa Ramachandra
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Publication number: 20240121651Abstract: Various embodiments of the present disclosure provide a method for measurement information. The method, which may be implemented at a terminal device, comprises obtaining measurement information based at least in part on configurations of a master network node and a secondary network node. The terminal device is connected to the master network node and the secondary network node. The method further comprises transmitting a report including the measurement information that comprises frequency information to the master network node, in response to a failure related to the secondary network node.Type: ApplicationFiled: December 15, 2023Publication date: April 11, 2024Inventors: Rui Fan, Oumer Teyeb, Icaro Leonardo J. Da Silva
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Publication number: 20240098611Abstract: Systems and methods are disclosed herein that relate to inter-Secondary Node (SN) conditional cell change and measurement configuration. In one embodiment, a method for configuring measurements related to inter-SN conditional reconfiguration comprises, at a Source Secondary Node (S-SN), sending, to a Master Node (MN), a first message comprising an indication that the first message is for conditional reconfiguration and information about one or more target candidate cells of a target candidate SN. The method further comprises, at the MN, receiving the first message from the S-SN and sending a second message to the target candidate SN, the second message being a request for SN addition and comprising an indication that the second message is for conditional reconfiguration and information about the one or more target candidate cells of the target candidate SN.Type: ApplicationFiled: January 28, 2022Publication date: March 21, 2024Inventors: Icaro Leonardo J. Da Silva, Cecilia Eklöf, Julien Muller
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Patent number: 11937131Abstract: 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: GrantFiled: February 3, 2022Date of Patent: March 19, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Icaro Leonardo J. Da Silva, Oscar Ohlsson
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Patent number: 11924693Abstract: 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: GrantFiled: June 27, 2019Date of Patent: March 5, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Icaro Leonardo J. Da Silva, Oscar Ohlsson
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Patent number: 11917707Abstract: 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: GrantFiled: August 29, 2019Date of Patent: February 27, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Icaro Leonardo J. Da Silva, Magnus Stattin
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Patent number: 11902017Abstract: 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: GrantFiled: June 27, 2022Date of Patent: February 13, 2024Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Jari Vikberg, Gunnar Mildh, Johan Rune, Icaro Leonardo J. Da Silva, Pontus Wallentin
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Patent number: 11889372Abstract: 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: GrantFiled: May 5, 2022Date of Patent: January 30, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Janne Peisa, Icaro Leonardo J. Da Silva, Pradeepa Ramachandra
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Patent number: 11889334Abstract: Various embodiments of the present disclosure provide a method for measurement information. The method, which may be implemented at a terminal device, comprises obtaining measurement information based at least in part on configurations of a master network node and a secondary network node. The terminal device is connected to the master network node and the secondary network node. The method further comprises transmitting a report including the measurement information that comprises frequency information to the master network node, in response to a failure related to the secondary network node.Type: GrantFiled: February 25, 2019Date of Patent: January 30, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Rui Fan, Oumer Teyeb, Icaro Leonardo J. Da Silva
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Publication number: 20230379789Abstract: Systems and methods are disclosed herein for handling Conditional Primary Secondary Cell (PSCell) Change (CPC) upon Secondary Node (SN) release. In one embodiment, a method performed by a Master Node (MN) for SN release for a User Equipment (UE) that is operating in Multi-Radio Dual Connectivity (MR-DC) and configured with CPC comprises determining that a SN for a UE that is operating in MR-DC and configured with CPC is to be released. The method further comprises, responsive to determining that the SN for the UE that is operating in MR-DC and configured with CPC is to be released, sending a first message to a target SN (T-SN) associated with a CPC configuration for the UE, the first message being indicative of a CPC cancellation, and sending a second message to the UE, the second message comprising an explicit or implicit indication that the UE is to release the CPC configuration.Type: ApplicationFiled: October 8, 2021Publication date: November 23, 2023Inventors: Icaro Leonardo J. DA SILVA, Cecilia EKLÖF, Julien MULLER
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Publication number: 20230370915Abstract: Systems and methods are disclosed herein for cancellation of Conditional Primary Secondary Cell (PSCell) Addition (CPA) in a cellular communications network. In one embodiment, a method performed by a secondary node comprises receiving a request from a master node for a conditional secondary node addition, the request comprising information that indicates a request for CPA for one or more PSCells. The method further comprises transmitting, to the master node, a response to the request that confirms that a User Equipment (UE) may be accepted for CPA for the one or more PSCells unless a canceling indication is later received and sending, to the master node, a message that indicates that the CPA is cancelled for at least one of the one or more PSCells. In this manner, the secondary node to cancel an already prepared CPA.Type: ApplicationFiled: September 28, 2021Publication date: November 16, 2023Inventors: Icaro Leonardo J. Da Silva, Cecilia Eklöf, Julien Muller
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Publication number: 20230247706Abstract: Systems and methods are disclosed herein relating to wireless device behavior after rejection of a resume request triggered by a Radio Access Network (RAN) based Notification Area Update (RNAU) or upon cell reselection during resume. In some embodiments, a method of operation of a wireless device comprises transmitting, to a RAN node, a Radio Resource Control (RRC) resume request triggered by an RNAU and receiving, from the RAN node, an RRC resume reject message comprising a wait timer value in response to the RRC resume request. The method further comprises starting a wait timer initialized with the wait timer value and sending the RNAU when the wait timer has expired. Corresponding embodiments of a wireless device are also disclosed. Embodiments of a wireless device and methods of operation thereof related to the behavior of the wireless device upon performing a cell reselection during resume are also disclosed.Type: ApplicationFiled: April 10, 2023Publication date: August 3, 2023Inventors: Gunnar Mildh, Icaro Leonardo J. da Silva
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Publication number: 20230025432Abstract: The present disclosure relates to a method performed by a User Equipment (UE) for handling mobility information in a communications network. The UE predicts the mobility information. The UE reports the predicted mobility information to a first network node currently serving the UE in the communications network.Type: ApplicationFiled: December 10, 2019Publication date: January 26, 2023Inventors: Icaro Leonardo J. Da Silva, Victor Farias Monteiro
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Publication number: 20220329347Abstract: 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: ApplicationFiled: June 27, 2022Publication date: October 13, 2022Inventors: Jari Vikberg, Gunnar Mildh, Johan Rune, Icaro Leonardo J. Da Silva, Pontus Wallentin
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Publication number: 20220312532Abstract: Systems and methods are disclosed herein for enabling reporting of a subset of measurements performed by a wireless device when in an idle or inactive state to a cellular communications network. In one embodiment, a method performed by a wireless device for reporting measurements to a cellular communications network comprises performing measurements while in an idle or inactive state, storing the measurements, determining a subset of the measurements to be reported by the wireless device, and reporting the determined subset of the measurements to the cellular communications network. In this manner, only desired measurements can be reported, which reduces the amount of information that needs to be reported by the wireless device.Type: ApplicationFiled: May 4, 2020Publication date: September 29, 2022Inventors: Patrik Rugeland, Icaro Leonardo J. Da Silva, Oumer Teyeb
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Publication number: 20220295364Abstract: Systems and methods are disclosed herein for handling idle mode measurement configuration mismatches when a wireless device performs cell re-selection. In one embodiment, a method performed by a wireless device for idle mode measurements while the wireless device is in an idle or inactive state comprises obtaining, on a first cell, first measurement configurations for a first set of carriers comprising an overlapping carrier(s) and/or a non-overlapping carrier(s). The method further comprises transitioning to a dormant state and, while in the dormant state, performing a cell re-selection from the first cell to a second cell while an idle mode measurement duration timer is running, obtaining, from the second cell, second measurement configurations for a second set of carriers comprising an overlapping carrier(s) and/or a non-overlapping carrier(s), and performing an action(s) in response to a mismatch(es) between the first and second measurement configurations.Type: ApplicationFiled: August 26, 2020Publication date: September 15, 2022Inventors: Patrik Rugeland, Oumer Teyeb, Icaro Leonardo J. Da Silva
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Patent number: 11431436Abstract: 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: GrantFiled: April 8, 2020Date of Patent: August 30, 2022Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Jari Vikberg, Gunnar Mildh, Johan Rune, Icaro Leonardo J. Da Silva, Pontus Wallentin
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Publication number: 20220264412Abstract: 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: ApplicationFiled: May 5, 2022Publication date: August 18, 2022Inventors: Janne Peisa, Icaro Leonardo J. Da Silva, Pradeepa Ramachandra
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Patent number: 11419031Abstract: 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: GrantFiled: June 15, 2020Date of Patent: August 16, 2022Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Janne Peisa, Icaro Leonardo J. Da Silva, Pradeepa Ramachandra