Patents by Inventor Pushpika WIJESINGHE

Pushpika WIJESINGHE 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: 10542523
    Abstract: A device-to-device user equipment (D2D-UE) and a method for use by a device-to-device user equipment (D2D-UE) is provided. The method comprises: determining, according to a non-UE specific resource allocation configuration, a plurality of available channels within a resource pool; selecting a primary channel of the plurality of available channels for the transmission of data; determining one or more transmission (TX) opportunities and one or more reception (RX) opportunities associated with the selected primary channel, wherein the transmit opportunities comprise a transmit subframe and an associated transmit resource block which are allocated for data transmission, and the reception opportunities comprise a transmit subframe which is not allocated for data transmission; transmitting a scheduling assignment (SA) on a TX opportunity of the TX opportunities; and receiving, an SA of another D2D-UE on an RX opportunity of the RX opportunities.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: January 21, 2020
    Assignee: NEC Corporation
    Inventors: Phong Nguyen, Pushpika Wijesinghe
  • Publication number: 20190313372
    Abstract: A device-to-device user equipment (D2D-UE) and a method for use by a device-to-device user equipment (D2D-UE) is provided. The method comprises: determining, according to a non-UE specific resource allocation configuration, a plurality of available channels within a resource pool; selecting a primary channel of the plurality of available channels for the transmission of data; determining one or more transmission (TX) opportunities and one or more reception (RX) opportunities associated with the selected primary channel, wherein the transmit opportunities comprise a transmit subframe and an associated transmit resource block which are allocated for data transmission, and the reception opportunities comprise a transmit subframe which is not allocated for data transmission; transmitting a scheduling assignment (SA) on a TX opportunity of the TX opportunities; and receiving, an SA of another D2D-UE on an RX opportunity of the RX opportunities.
    Type: Application
    Filed: June 10, 2019
    Publication date: October 10, 2019
    Applicant: NEC Corporation
    Inventors: Phong NGUYEN, Pushpika WIJESINGHE
  • Patent number: 10405307
    Abstract: A control signalling method for use in advanced communication networks is proposed. The method provides for self-scheduling carrier aggregation, cross-carrier scheduling carrier aggregation, and hybrid-scheduling carrier aggregation for downlink data transmission on up to 32 concurrent downlink component carriers where the UE feedback on downlink data is transmitted on a single uplink component carrier.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: September 3, 2019
    Assignee: NEC CORPORATION
    Inventors: Phong Nguyen, Pushpika Wijesinghe
  • Patent number: 10375675
    Abstract: A device-to-device user equipment (D2D-UE) and a method for use by a device-to-device user equipment (D2D-UE) is provided. The method comprises: determining, according to a non-UE specific resource allocation configuration, a plurality of available channels within a resource pool; selecting a primary channel of the plurality of available channels for the transmission of data; determining one or more transmission (TX) opportunities and one or more reception (RX) opportunities associated with the selected primary channel, wherein the transmit opportunities comprise a transmit subframe and an associated transmit resource block which are allocated for data transmission, and the reception opportunities comprise a transmit subframe which is not allocated for data transmission; transmitting a scheduling assignment (SA) on a TX opportunity of the TX opportunities; and receiving, an SA of another D2D-UE on an RX opportunity of the RX opportunities.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: August 6, 2019
    Assignee: NEC Corporation
    Inventors: Phong Nguyen, Pushpika Wijesinghe
  • Publication number: 20190097761
    Abstract: A method and system for use in an advanced wireless communication network is provided. The method comprises: providing, to a group of UEs, a resource multiplexing configuration defining resource multiplexing for cellular and non-cellular communication; and allocating resources to the group of UEs for cellular communication, according to the resource multiplexing configuration. Advantageously, the method enables collisions and interference between D2D and cellular transmissions to be reduced or avoided.
    Type: Application
    Filed: November 26, 2018
    Publication date: March 28, 2019
    Applicant: NEC Corporation
    Inventors: Pushpika WIJESINGHE, Phong NGUYEN
  • Patent number: 10200159
    Abstract: A method and system for use in an advanced wireless communication network is provided. The method comprises: providing, to a group of UEs, a resource multiplexing configuration defining resource multiplexing for cellular and non-cellular communication; and allocating resources to the group of UEs for cellular communication, according to the resource multiplexing configuration. Advantageously, the method enables collisions and interference between D2D and cellular transmissions to be reduced or avoided.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: February 5, 2019
    Assignee: NEC Corporation
    Inventors: Pushpika Wijesinghe, Phong Nguyen
  • Publication number: 20180295608
    Abstract: A control signalling method for use in advanced communication networks is proposed. The method provides for self-scheduling carrier aggregation, cross-carrier scheduling carrier aggregation, and hybrid-scheduling carrier aggregation for downlink data transmission on up to 32 concurrent downlink component carriers where the UE feedback on downlink data is transmitted on a single uplink component carrier.
    Type: Application
    Filed: November 16, 2015
    Publication date: October 11, 2018
    Applicant: NEC CORPORATION
    Inventors: Phong NGUYEN, Pushpika WIJESINGHE
  • Publication number: 20180227883
    Abstract: A device-to-device user equipment (D2D-UE) and a method for use by a device-to-device user equipment (D2D-UE) is provided. The method comprises: determining, according to a non-UE specific resource allocation configuration, a plurality of available channels within a resource pool; selecting a primary channel of the plurality of available channels for the transmission of data; determining one or more transmission (TX) opportunities and one or more reception (RX) opportunities associated with the selected primary channel, wherein the transmit opportunities comprise a transmit subframe and an associated transmit resource block which are allocated for data transmission, and the reception opportunities comprise a transmit subframe which is not allocated for data transmission; transmitting a scheduling assignment (SA) on a TX opportunity of the TX opportunities; and receiving, an SA of another D2D-UE on an RX opportunity of the RX opportunities.
    Type: Application
    Filed: April 3, 2018
    Publication date: August 9, 2018
    Applicant: NEC Corporation
    Inventors: Phong NGUYEN, Pushpika WIJESINGHE
  • Patent number: 10045191
    Abstract: A wireless communication system (100) is disclosed in which UEs (120a-120c) can operate in a cellular mode wherein data is transmitted from one UE to another via one or more access nodes in a cellular network, and at least some UEs (120c) are D2D-UEs which can also operate in a direct communication mode wherein a pair of D2D-UEs transmit data directly from one to the other, wherein D2D-UEs operating in the direct communication mode maintain control signaling connection with the network and periodically change to the cellular mode and send CSI to the network, and the network uses CSI and/or network available geographical location information for D2D-UEs in determining whether to cause D2D-UEs to operate in the direct communication mode or the cellular mode.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: August 7, 2018
    Assignee: NEC Corporation
    Inventors: Phong Nguyen, Pushpika Wijesinghe
  • Patent number: 9961671
    Abstract: A device-to-device user equipment (D2D-UE) and a method for use by a device-to-device user equipment (D2D-UE) is provided. The method comprises: determining, according to a non-UE specific resource allocation configuration, a plurality of available channels within a resource pool; selecting a primary channel of the plurality of available channels for the transmission of data; determining one or more transmission (TX) opportunities and one or more reception (RX) opportunities associated with the selected primary channel, wherein the transmit opportunities comprise a transmit subframe and an associated transmit resource block which are allocated for data transmission, and the reception opportunities comprise a transmit subframe which is not allocated for data transmission; transmitting a scheduling assignment (SA) on a TX opportunity of the TX opportunities; and receiving, an SA of another D2D-UE on an RX opportunity of the RX opportunities.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: May 1, 2018
    Assignee: NEC Corporation
    Inventors: Phong Nguyen, Pushpika Wijesinghe
  • Publication number: 20170230937
    Abstract: A device-to-device user equipment (D2D-UE) and a method for use by a device-to-device user equipment (D2D-UE) is provided. The method comprises: determining, according to a non-UE specific resource allocation configuration, a plurality of available channels within a resource pool; selecting a primary channel of the plurality of available channels for the transmission of data; determining one or more transmission (TX) opportunities and one or more reception (RX) opportunities associated with the selected primary channel, wherein the transmit opportunities comprise a transmit subframe and an associated transmit resource block which are allocated for data transmission, and the reception opportunities comprise a transmit subframe which is not allocated for data transmission; transmitting a scheduling assignment (SA) on a TX opportunity of the TX opportunities; and receiving, an SA of another D2D-UE on an RX opportunity of the RX opportunities.
    Type: Application
    Filed: March 16, 2015
    Publication date: August 10, 2017
    Applicant: NEC Corporation
    Inventors: Phong NGUYEN, Pushpika WIJESINGHE
  • Publication number: 20170027015
    Abstract: A method and system for use in an advanced wireless communication network is provided. The method comprises: providing, to a group of UEs, a resource multiplexing configuration defining resource multiplexing for cellular and non-cellular communication; and allocating resources to the group of UEs for cellular communication, according to the resource multiplexing configuration. Advantageously, the method enables collisions and interference between D2D and cellular transmissions to be reduced or avoided.
    Type: Application
    Filed: March 13, 2015
    Publication date: January 26, 2017
    Applicant: NEC Corporation
    Inventors: Pushpika WIJESINGHE, Phong NGUYEN
  • Patent number: 9532204
    Abstract: A method is disclosed for use in device-to-device (D2D) discovery in a wireless communication network. The network includes at least one base station and a plurality of D2D capable user equipments (D2D-UEs). The network also supports cellular communication and direct communication between D2D-UEs. The method includes transmitting D2D discovery system information (D2D-SIB) from the base station to D2D-UEs, wherein the D2D-SIB indicates frame(s)/subframe(s) for D2D-UEs to transmit D2D discovery request signal(s) and frame(s)/subframe(s) for D2D-UEs to transmit D2D discovery response signal(s). The method also includes transmitting one or more D2D discovery request signal(s) from one D2D-UE, and upon receipt of a said D2D discovery request signal by another D2D-UE, transmitting from said other D2D-UE one or more D2D discovery response signal(s). The D2D discovery request signal(s) and D2D discovery response signal(s) are transmitted on the frame(s)/subframe(s) indicated in the D2D-SIB.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: December 27, 2016
    Assignee: NEC Corporation
    Inventors: Phong Nguyen, Pushpika Wijesinghe
  • Publication number: 20160112858
    Abstract: A method is disclosed for use in device-to-device (D2D) discovery in a wireless communication network. The network includes at least one base station and a plurality of D2D capable user equipments (D2D-UEs). The network also supports cellular communication and direct communication between D2D-UEs. The method includes transmitting D2D discovery system information (D2D-SIB) from the base station to D2D-UEs, wherein the D2D-SIB indicates frame(s)/subframe(s) for D2D-UEs to transmit D2D discovery request signal(s) and frame(s)/subframe(s) for D2D-UEs to transmit D2D discovery response signal(s). The method also includes transmitting one or more D2D discovery request signal(s) from one D2D-UE, and upon receipt of a said D2D discovery request signal by another D2D-UE, transmitting from said other D2D-UE one or more D2D discovery response signal(s). The D2D discovery request signal(s) and D2D discovery response signal(s) are transmitted on the frame(s)/subframe(s) indicated in the D2D-SIB.
    Type: Application
    Filed: July 9, 2014
    Publication date: April 21, 2016
    Applicants: NEC CORPORATION, NEC CORPORATION
    Inventors: Phong NGUYEN, Pushpika WIJESINGHE
  • Publication number: 20160037322
    Abstract: A wireless communication system (100) is disclosed in which UEs (120a-120c) can operate in a cellular mode wherein data is transmitted from one UE to another via one or more access nodes in a cellular network, and at least some UEs (120c) are D2D-UEs which can also operate in a direct communication mode wherein a pair of D2D-UEs transmit data directly from one to the other, wherein D2D-UEs operating in the direct communication mode maintain control signaling connection with the network and periodically change to the cellular mode and send CSI to the network, and the network uses CSI and/or network available geographical location information for D2D-UEs in determining whether to cause D2D-UEs to operate in the direct communication mode or the cellular mode.
    Type: Application
    Filed: April 9, 2014
    Publication date: February 4, 2016
    Applicant: NEC CORPORATION
    Inventors: Phong NGUYEN, Pushpika WIJESINGHE