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).

  • Publication number: 20190320355
    Abstract: Some embodiments herein relate to a method performed by a wireless device for handling communication of the wireless device in a wireless communication network, wherein the wireless device is served by a radio network node. The wireless device performs a beam tracking of one or more beams for a set of detected neighbour cells for tracking one or more best beams of respective neighbour cell based on measured signal strength or measured signal quality. The wireless device further receives an indication from the radio network node, wherein the indication indicates a target cell for the wireless device. When the target cell is in the set of detected neighbour cells, the wireless device further initiates a random access procedure associated with a best target beam for the target cell, wherein the best target beam is selected based on the beam tracking performed prior to receiving the indication.
    Type: Application
    Filed: March 22, 2018
    Publication date: October 17, 2019
    Inventor: Icaro Leonardo J. Da Silva
  • Publication number: 20190297545
    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: Application
    Filed: November 8, 2017
    Publication date: September 26, 2019
    Inventors: Pradeepa Ramachandra, Stefan Engström, Reza Moosavi, Claes Tidestav, Andres Reial, Icaro Leonardo J. Da Silva, Fredrik Gunnarsson, Kristina Zetterberg, Pål Frenger
  • Publication number: 20190253908
    Abstract: 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: Application
    Filed: February 25, 2019
    Publication date: August 15, 2019
    Inventors: Rui Fan, Oumer Teyeb, Icaro Leonardo J. Da Silva
  • Publication number: 20190199466
    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: February 28, 2019
    Publication date: June 27, 2019
    Inventors: Jari Vikberg, Gunnar Mildh, Johan Rune, Icaro Leonardo J. Da Silva, Pontus Wallentin
  • Patent number: 10263729
    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: August 26, 2015
    Date of Patent: April 16, 2019
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Jari Vikberg, Gunnar Mildh, Johan Rune, Icaro Leonardo J. Da Silva, Pontus Wallentin
  • Publication number: 20190007881
    Abstract: A network node, a wireless device and methods therein, for enabling the wireless device to access a wireless network. The network node configures the wireless device with a set of serving reference signals to be measured by the wireless device in inactive/idle mode, wherein the serving reference signals are also used by wireless devices in active mode. When the network node transmits the set of serving reference signals according to a predefined scheme, a Physical Random Access Channel, PRACH, preamble associated with one of the serving reference signals, is received from the wireless device and a connection with the wireless device is established based on the received PRACH preamble. Thereby, the risk for an immediate handover or cell re-selection of the wireless device after a state transition between active mode and idle/inactive mode can be reduced since the serving reference signals are used by wireless device in both modes.
    Type: Application
    Filed: October 27, 2017
    Publication date: January 3, 2019
    Inventors: Pradeepa Ramachandra, Icaro Leonardo J. Da Silva, Andres Reial
  • Patent number: 10165511
    Abstract: A method is provided, which may be performed in a communication device for establishing a discontinuous reception mode configuration. The method comprises determining at least one characteristics of signaling from a network node, and adapting, based on the at least one characteristics, at least one parameter of a currently used discontinuous reception mode configuration. A related communication device, computer program and computer program products are also provided.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: December 25, 2018
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Jose Luis Pradas, Torgny Palenius, Johan Rune, Icaro Leonardo J. Da Silva
  • Publication number: 20180302803
    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: Application
    Filed: September 28, 2017
    Publication date: October 18, 2018
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Pradeepa Ramachandra, Icaro Leonardo J. Da Silva, Reza Moosavi
  • Publication number: 20180199394
    Abstract: A method and communication node for providing traffic aggregation between a 3GPP network and a WLAN network when a wireless device is connected to an access point of the WLAN network. The communication node establishes an aggregation interface between the wireless device and a base station of the 3GPP network for carrying aggregation traffic traversing the WLAN network transparently. The communication node can then communicate data and/or messages over the WLAN network across the aggregation interface, without requiring any modifications or adaptions in the WLAN network. The communication node may be the wireless device or the base station.
    Type: Application
    Filed: February 19, 2016
    Publication date: July 12, 2018
    Inventors: Oumer Teyeb, Icaro Leonardo J. Da Silva, Jari Vikberg, Filip Mestanov
  • Publication number: 20180115888
    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 13, 2017
    Publication date: April 26, 2018
    Inventors: Gunnar Mildh, Jari Vikberg, Johan Rune, Icaro Leonardo J. Da Silva, Pontus Wallentin
  • Publication number: 20180035372
    Abstract: A method is provided, which may be performed in a communication device for establishing a discontinuous reception mode configuration. The method comprises determining at least one characteristics of signaling from a network node, and adapting, based on the at least one characteristics, at least one parameter of a currently used discontinuous reception mode configuration. A related communication device, computer program and computer program products are also provided.
    Type: Application
    Filed: November 23, 2015
    Publication date: February 1, 2018
    Inventors: Jose Luis Pradas, Torgny Palenius, Johan Rune, Icaro Leonardo J. Da Silva
  • Patent number: 9883378
    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: May 6, 2015
    Date of Patent: January 30, 2018
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Gunnar Mildh, Jari Vikberg, Johan Rune, Icaro Leonardo J. Da Silva, Pontus Wallentin
  • Patent number: 9788362
    Abstract: A method in a network node for improving transmission control protocol, TCP, performance in a cellular network is provided. The network node handles TCP packet transferral between a user equipment and a server in the cellular network. The user equipment and the server are configured to adapt a retransmission timeout setting based on round trip times for performed TCP packet transferrals. When the network node obtains an indication of a handover outage being upcoming for the user equipment, the network node deliberately delays, in a time period preceding the indicated handover outage, a transferal of a TCP packet between the server and the user equipment to increase the round trip time for the TCP packet.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: October 10, 2017
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON
    Inventors: Jing Fu, Åsa Bertze, Icaro Leonardo J. Da Silva, Fredrik Kuivinen, Yu Wang
  • Publication number: 20170257183
    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: August 26, 2015
    Publication date: September 7, 2017
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jari Vikberg, Gunnar Mildh, Johan Rune, Icaro Leonardo J. Da Silva, Pontus Wallentin
  • Patent number: 9699697
    Abstract: The present disclosure relates to identifying stale failure reports in a cellular communications network. In one embodiment, a node in a cellular communications network receives a failure report associated with a connection failure for a user equipment and determines when the connection failure occurred with respect to a most recent mobility adjustment made by the node. If the connection failure occurred before the most recent mobility adjustment made by the node, the node classifies the failure report as a stale failure report. In one embodiment, if the failure report is classified as a stale failure report, the node discards the failure. In another embodiment, if the failure report is classified as a stale failure report, the node considers the failure report with reduced relevance for a next iteration of a process to determine whether new mobility adjustments are desired.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: July 4, 2017
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Icaro Leonardo J. Da Silva, Angelo Centonza, Oumer Teyeb
  • Publication number: 20170127325
    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: Application
    Filed: November 2, 2015
    Publication date: May 4, 2017
    Inventors: Jari Vikberg, Icaro Leonardo J. Da Silva, Filip Mestanov, Oumer Teyeb
  • Publication number: 20160330612
    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: May 6, 2015
    Publication date: November 10, 2016
    Inventors: Gunnar Mildh, Jari Vikberg, Johan Rune, Icaro Leonardo J. Da Silva, Pontus Wallentin
  • Publication number: 20150382265
    Abstract: The present disclosure relates to identifying stale failure reports in a cellular communications network. In one embodiment, a node in a cellular communications network receives a failure report associated with a connection failure for a user equipment and determines when the connection failure occurred with respect to a most recent mobility adjustment made by the node. If the connection failure occurred before the most recent mobility adjustment made by the node, the node classifies the failure report as a stale failure report. In one embodiment, if the failure report is classified as a stale failure report, the node discards the failure. In another embodiment, if the failure report is classified as a stale failure report, the node considers the failure report with reduced relevance for a next iteration of a process to determine whether new mobility adjustments are desired.
    Type: Application
    Filed: September 4, 2015
    Publication date: December 31, 2015
    Inventors: Icaro Leonardo J. Da Silva, Angelo Centonza, Oumer Teyeb
  • Patent number: 9185581
    Abstract: The present disclosure relates to identifying stale failure reports in a cellular communications network. In one embodiment, a node in a cellular communications network receives a failure report associated with a connection failure for a user equipment and determines when the connection failure occurred with respect to a most recent mobility adjustment made by the node. If the connection failure occurred before the most recent mobility adjustment made by the node, the node classifies the failure report as a stale failure report. In one embodiment, if the failure report is classified as a stale failure report, the node discards the failure. In another embodiment, if the failure report is classified as a stale failure report, the node considers the failure report with reduced relevance for a next iteration of a process to determine whether new mobility adjustments are desired.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: November 10, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Icaro Leonardo J. Da Silva, Angelo Centonza, Oumer Teyeb
  • Publication number: 20140286313
    Abstract: A method in a network node for improving transmission control protocol, TCP, performance in a cellular network is provided. The network node handles TCP packet transferral between a user equipment and a server in the cellular network. The user equipment and the server are configured to adapt a retransmission timeout setting based on round trip times for performed TCP packet transferrals. When the network node obtains an indication of a handover outage being upcoming for the user equipment, the network node deliberately delays, in a time period preceding the indicated handover outage, a transferal of a TCP packet between the server and the user equipment to increase the round trip time for the TCP packet.
    Type: Application
    Filed: November 23, 2011
    Publication date: September 25, 2014
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Jing Fu, Åsa Bertze, Icaro Leonardo J. Da Silva, Fredrik Kuivinen, Yu Wang