Patents by Inventor Sivapathalingham Sivavakeesar

Sivapathalingham Sivavakeesar 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: 20220201461
    Abstract: A system is described in which a default mobility management entity (MME) receives, from a base station, a request for setting up a communication connection to a mobile device having an associated usage type. The default MME sends, to the base station and responsive to the request, a message identifying a dedicated MME, to which the request should be re-routed, the dedicated MME having a supported service type corresponding to the usage type associated with the mobile device. The base station sends a response to the default MME, the response indicating whether re-routing to said dedicated MME is was successful or not (e.g. due to an overload of the dedicated MME). If the re-routing was not successful, the default MME attempts to serve the mobile device instead of the dedicated MME.
    Type: Application
    Filed: March 14, 2022
    Publication date: June 23, 2022
    Applicant: NEC Corporation
    Inventor: Sivapathalingham SIVAVAKEESAR
  • Publication number: 20220191727
    Abstract: A communication system is disclosed in which a serving base station configures a mobile device for performing measurements with respect to signals transmitted by a neighbour base station. The serving base station obtains a measurement report from the mobile device, the measurement report comprising a result of signal measurements in association with information identifying a beamformed region in which a signal to which said result of said signal measurements relates was transmitted.
    Type: Application
    Filed: March 1, 2022
    Publication date: June 16, 2022
    Applicant: NEC Corporation
    Inventors: Yuhua CHEN, Sivapathalingham SIVAVAKEESAR
  • Publication number: 20220191823
    Abstract: A communication system is disclosed in which am anchor base station receives, from a core network node, downlink data for a communication device. The base station attempts (e.g. by RAN-based paging) to initiate communication with the communication device, and when the communication device does not respond to the attempt to initiate communication, the base station sends a message to the core network node, the message requesting initiation of a paging procedure for the communication device (e.g. S1-based paging).
    Type: Application
    Filed: March 8, 2022
    Publication date: June 16, 2022
    Applicant: NEC Corporation
    Inventors: Sivapathalingham SIVAVAKEESAR, Robert PATERSON, Toshiyuki TAMURA, Sadafuku HAYASHI
  • Patent number: 11317273
    Abstract: A system is described in which a default mobility management entity (MME) receives, from a base station, a request for setting up a communication connection to a mobile device having an associated usage type. The default MME sends, to the base station and responsive to the request, a message identifying a dedicated MME, to which the request should be re-routed, the dedicated MME having a supported service type corresponding to the usage type associated with the mobile device. The base station sends a response to the default MME, the response indicating whether re-routing to said dedicated MME is was successful or not (e.g. due to an overload of the dedicated MME). If the re-routing was not successful, the default MME attempts to serve the mobile device instead of the dedicated MME.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: April 26, 2022
    Assignee: NEC CORPORATION
    Inventor: Sivapathalingham Sivavakeesar
  • Patent number: 11297521
    Abstract: A communication system is disclosed in which a serving base station configures a mobile device for performing measurements with respect to signals transmitted by a neighbour base station. The serving base station obtains a measurement report from the mobile device, the measurement report comprising a result of signal measurements in association with information identifying a beamformed region in which a signal to which said result of said signal measurements relates was transmitted.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: April 5, 2022
    Assignee: NEC CORPORATION
    Inventors: Yuhua Chen, Sivapathalingham Sivavakeesar
  • Publication number: 20220053579
    Abstract: A communication system is disclosed in which a communication device forms part of a communication system in which network slicing is supported and in which at least one tenant is able to communicate using at least one slice type associated with that tenant. The communication device receives network slicing related information transmitted by a base station. The network slicing related information may comprise information identifying support for a tenant whose communication is supported via the base station, or a network slice type of a tenant that is supported by the base station. The network slicing related information may comprise information comprising at least one communication parameter that is associated with a specific tenant or a specific slice type of a specific tenant. The communication device uses a slice having a slice type of a tenant with which the communication device is associated, based on the network slicing related information.
    Type: Application
    Filed: June 24, 2021
    Publication date: February 17, 2022
    Applicant: NEC CORPORATION
    Inventor: Sivapathalingham Sivavakeesar
  • Patent number: 11140586
    Abstract: A system is disclosed in which a base station performs an Automatic Neighbour Relation (ANR) operation in relation to a Wireless Local Area Network (WLAN) and obtains, from a mobile communication device (UE) or a Mobility Management Entity (MME), the Transport Network layer (TNL) address associated with a WLAN Termination node of the WLAN for establishing a connection between the base station and the WLAN Termination node.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: October 5, 2021
    Assignee: NEC CORPORATION
    Inventors: Sivapathalingham Sivavakeesar, Sadafuku Hayashi
  • Patent number: 11102847
    Abstract: Communication apparatus for a cellular communication system are disclosed. The communication apparatus comprises a controller and a transceiver. The controller is operable to control the transceiver to communicate with communication apparatus of a wireless local area network (WLAN) in pursuance of an interface setup procedure to setup an interface between the communication apparatus for the cellular communication system and the communication apparatus of the WLAN. As part of the interface setup procedure, the controller controls the transceiver to transmit an interface setup request message to the communication apparatus of the WLAN and receive, responsive to the interface setup request message, an interface setup response message including information identifying an access mode of at least one access point (AP) of the WLAN. The controller sets up the interface at the communication apparatus for the cellular communication system based on the interface setup procedure.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: August 24, 2021
    Assignee: NEC CORPORATION
    Inventor: Sivapathalingham Sivavakeesar
  • Patent number: 11076434
    Abstract: A communication system is disclosed in which a communication device forms part of a communication system in which network slicing is supported and in which at least one tenant is able to communicate using at least one slice type associated with that tenant. The communication device receives network slicing related information transmitted by a base station. The network slicing related information may comprise information identifying support for a tenant whose communication is supported via the base station, or a network slice type of a tenant that is supported by the base station. The network slicing related information may comprise information comprising at least one communication parameter that is associated with a specific tenant or a specific slice type of a specific tenant. The communication device uses a slice having a slice type of a tenant with which the communication device is associated, based on the network slicing related information.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: July 27, 2021
    Assignee: NEC CORPORATION
    Inventor: Sivapathalingham Sivavakeesar
  • Patent number: 11006466
    Abstract: A communication system is disclosed comprising an X2 gateway, a number of base stations, and a mobile device. The base stations are able to establish X2 connections directly with each other or via the X2 gateway. Various procedures are disclosed to determine how X2 connections should be established based on compatibility of the respective base stations with the X2 gateway.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: May 11, 2021
    Assignee: NEC Corporation
    Inventors: Kenji Kawaguchi, Sivapathalingham Sivavakeesar
  • Publication number: 20210068073
    Abstract: The present disclosure relates to a user equipment (UE) comprising a receiver for receiving a paging message from a base station. A processor determines at least one network slice to which the paging message pertains based on the received paging message. The disclosure further relates to a UE comprising a receiver for receiving information on a plurality of network slices. The information includes for each network slice a shortened network slice ID identifying the respective network slice and includes mapping information defining a mapping between the shortened network slice ID and a full network slice ID. A processor determines a network slice and the corresponding full network slice ID and further determines the corresponding shortened network slice ID based on the received mapping information. A transmitter transmits a data transmission preparation message to the base station that comprises the determined shortened network slice ID.
    Type: Application
    Filed: January 11, 2019
    Publication date: March 4, 2021
    Inventors: Sivapathalingham SIVAVAKEESAR, Hidetoshi SUZUKI, Ankit BHAMRI, David GONZALEZ, Tien-Ming Benjamin KOH
  • Publication number: 20200374926
    Abstract: A user equipment receives random access configuration parameters from its base station. A processor of the UE controls to repeatedly perform a prioritized RACH procedure with the base station, based on the received parameters, for a time period up to an end of a primary time interval or until a maximum number of RACH procedures is reached or until successful completion of the prioritized RACH procedure with the base station. The primary time interval comprises a plurality of secondary time intervals. The processor, when controlling to repeatedly perform the prioritized RACH procedure, determines random access parameters, which are valid for the duration of the respective secondary time interval in which the respective prioritized RACH procedure is performed, based on the received random access configuration parameters and depending on the respective secondary time interval. A transmitter transmits messages of the respective prioritized RACH procedure using the determined valid random access parameters.
    Type: Application
    Filed: August 12, 2020
    Publication date: November 26, 2020
    Inventors: Rikin SHAH, Ankit BHAMRI, Ming-Hung TAO, Hidetoshi SUZUKI, Sivapathalingham SIVAVAKEESAR
  • Publication number: 20200374942
    Abstract: A user equipment (UE) comprises a receiver that receives a paging message from a base station that controls a radio cell of a mobile communication system in which the user equipment is located. The paging message comprises information on a random access preamble to be used by the user equipment when performing a random access procedure with the base station. The UE further comprises a transmitter that transmits the random access preamble to the base station as part of a random access procedure performed by the user equipment with the base station.
    Type: Application
    Filed: August 13, 2020
    Publication date: November 26, 2020
    Inventors: Sivapathalingham SIVAVAKEESAR, Hidetoshi SUZUKI, Ming-Hung TAO, Rikin SHAH
  • Patent number: 10805851
    Abstract: A mobile communications system is described in which base stations can communicate with each other or with a central coordinator to exchange idle mode UE load information so that decisions can be made to change cell specific or frequency specific priorities used by different cells within the network to balance the loading of idle mode UEs between cells.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: October 13, 2020
    Assignee: NEC CORPORATION
    Inventor: Sivapathalingham Sivavakeesar
  • Publication number: 20200322787
    Abstract: A system is disclosed in which a base station obtains i) an identifier for identifying a base station and/or a cell and ii) a tracking area code associated with an area in which a plurality of base stations/cells operate including the base station/cell to which the identifier relates. The base station is configured to use the obtained identifier in combination with the tracking area code for uniquely identifying the base station/cell in a subsequent procedure relating to that base station/cell.
    Type: Application
    Filed: May 22, 2017
    Publication date: October 8, 2020
    Applicant: NEC CORPORATION
    Inventor: Sivapathalingham SIVAVAKEESAR
  • Publication number: 20200323010
    Abstract: A system is disclosed in which a base station receives, from a core network node (e.g. a mobility management entity), a resume identifier associated with a communication device located within a cell of the base station. The base station retrieves, based on the received resume identifier, a user equipment (UE) context associated with the communication device, for use in resumption of a suspended communication connection (e.g. a radio resource control connection) by the communication device.
    Type: Application
    Filed: March 23, 2017
    Publication date: October 8, 2020
    Applicant: NEC CORPORATION
    Inventors: Sivapathalingham SIVAVAKEESAR, Sadafuku HAYASHI
  • Publication number: 20200059811
    Abstract: A communication system is disclosed in which a serving base station configures a mobile device for performing measurements with respect to signals transmitted by a neighbour base station. The serving base station obtains a measurement report from the mobile device, the measurement report comprising a result of signal measurements in association with information identifying a beamformed region in which a signal to which said result of said signal measurements relates was transmitted.
    Type: Application
    Filed: October 24, 2019
    Publication date: February 20, 2020
    Applicant: NEC CORPORATION
    Inventors: Yuhua Chen, Sivapathalingham Sivavakeesar
  • Publication number: 20200037285
    Abstract: A communication system is disclosed in which am anchor base station receives, from a core network node, downlink data for a communication device. The base station attempts (e.g. by RAN-based paging) to initiate communication with the communication device, and when the communication device does not respond to the attempt to initiate communication, the base station sends a message to the core network node, the message requesting initiation of a paging procedure for the communication device (e.g. S1-based paging).
    Type: Application
    Filed: October 26, 2017
    Publication date: January 30, 2020
    Applicant: NEC Corporation
    Inventors: Sivapathalingham SIVAVAKEESAR, Robert PATERSON, Toshiyuki TAMURA, Sadafuku HAYASHI
  • Publication number: 20200015196
    Abstract: A communication system is disclosed in which an anchor base station configures a RAN based paging area for a communication device. When the anchor base station determines that it is necessary to update the RAN based paging area, it seeks to inform the communication device indicating that the RAN paging area for the communication device needs to be updated at the communication device, and subsequently, the base station may broadcast system information comprising information identifying a change to the paging area (e.g. a removal of a cell). The broadcasting of system information may also be carried out in other cells of the paging area.
    Type: Application
    Filed: January 29, 2018
    Publication date: January 9, 2020
    Applicant: NEC Corporation
    Inventors: Sivapathalingham SIVAVAKEESAR, Robert TIETZ, Jonathan LEWIS
  • Patent number: 10511962
    Abstract: A communication system is disclosed comprising a gateway, a number of base stations, and a mobile device. The gateway holds information mapping address data for each base station to information identifying a respective cell operated by that base station. A base station obtains information identifying a cell operated by a neighbour base station and provides this information to the gateway. The gateway obtains from the information held address data for the neighbour base station based on the information identifying the cell operated by the neighbour base station. The gateway generates and sends a message including address data to the base station. The base station receives the message and establishes a connection with the neighbour base station using the address data.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: December 17, 2019
    Assignee: NEC CORPORATION
    Inventor: Sivapathalingham Sivavakeesar