Patents by Inventor Vicknesan Ayadurai

Vicknesan Ayadurai 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: 20160277915
    Abstract: There are provided mechanisms for wireless devices to initiate direct-mode or device-to-device communications by exploiting the availability of the existing network coverage. Short range communications in a wireless communications system between a first wireless device and a second wireless device involves exchanging messages between the first wireless device and the second wireless device, first on a first communications link via a network node and then on a second communications link. A corresponding method is provided.
    Type: Application
    Filed: June 2, 2016
    Publication date: September 22, 2016
    Inventors: Vicknesan Ayadurai, Mikael Prytz
  • Publication number: 20160007362
    Abstract: Methods and apparatuses are provided for mitigating interference in a Wireless Local Access Network or WLAN that may be caused by a radio node. Signal measurements are monitored at frequencies corresponding to one or more WLAN channels in one or more frequency bands. It is determined, based on the signal measurements at the frequencies, whether there are any channels among possible primary and secondary channel pairings of the WLAN channels that are being used by the WLAN as secondary channels. Spectrum usage by the radio node is controlled in dependence on the determination.
    Type: Application
    Filed: October 15, 2014
    Publication date: January 7, 2016
    Inventors: Vicknesan Ayadurai, Jung-Fu Cheng, Anders Furuskär, Havish Koorapaty
  • Publication number: 20150334755
    Abstract: The present disclosure relates a method, performed by a communication node of a cellular radio access network, for estimating a radio link quality of a direct link between a first user equipment and a second user equipment. The invention also provides a method performed in a user equipment, which method is used to monitor communication for the purpose of estimating communication in a possible direct link between a first user equipment and a second user equipment. The communication node instructs a user equipment to eavesdrop an uplink of an other user equipment UL1. The communication node obtaining data directly from the uplink UL1 and receives eavesdropped data from the user equipment. The communication node evaluates the radio link based on the data obtained from the uplink and the data eavesdropped from the uplink. The user equipment receives an instruction to eavesdrop the uplink UL1. The user equipment receives and obtains digital data from the uplink UL1, and reports to the network.
    Type: Application
    Filed: December 14, 2012
    Publication date: November 19, 2015
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Vicknesan AYADURAI, Mikael PRYTZ
  • Patent number: 9160714
    Abstract: The address translation capabilities of packet-switched mobile networks are exploited to achieve bidirectional LAN communications therethrough. A multi-dash user VPN can be provided by encapsulating a multi-user LAN communication protocol for traversal of a packet-switched network. By encapsulating a commonly available multi-user LAN communication protocol, for example ethernet, remote LAN connectivity can be extended without requiring any host reconfiguration.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: October 13, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Lars Westberg, Laszlo Hevizi, Vicknesan Ayadurai
  • Publication number: 20150245396
    Abstract: There is provided mechanisms for wireless devices to initiate direct-mode or device-to-device communications by exploiting the availability of the existing network coverage. Short range communications in a wireless communications system between a first wireless device and a second wireless device involves exchanging messages between the first wireless device and the second wireless device, first on a first communications link via a network node and then on a second communications link A corresponding method is provided. Also a computer program, a computer program product and a wireless device are provided.
    Type: Application
    Filed: September 28, 2012
    Publication date: August 27, 2015
    Inventors: Vicknesan Ayadurai, Mikael Prytz
  • Publication number: 20140254573
    Abstract: The invention relates to a method for allocating a common radio resource for simultaneous transmission of data streams in multiple pairs of communication nodes in a multi-node wireless network. The invention also relates to a method of assessing radio resource isolation in a multi-node wireless network. The inventive methods include transmission (44) of at least a first and a second test probe message on a common radio test resource. Receipt of the intended test probe messages are verified (45), whereupon radio resource isolation may be determined and a common radio resource allocated (46) for transmission in the tested communication node pairs. The invention also relates to a communication node and a control node wherein the inventive methods are applied.
    Type: Application
    Filed: October 20, 2011
    Publication date: September 11, 2014
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Vicknesan Ayadurai, Mikael Prytz
  • Publication number: 20140204923
    Abstract: A radio network node for handling data streams from a user equipment is provided. The radio network node comprises a first receiving interface and a second receiving interface. The radio network node creates (201) a representation of a first data stream. The first data stream is received via the first receiving interface. The radio network node further creates (202) a representation of a second data stream. The second data stream is received via the second receiving interface. The radio network node then compares (203) the representation of the first data stream with the representation of the second data stream. When the representation of the first data stream is equal to the representation of the second data stream, the radio network node identifies (204) that the first data stream received via the first receiving interface and the second data stream received via the second receiving interface are identical data streams received via different sources of transmission.
    Type: Application
    Filed: June 17, 2011
    Publication date: July 24, 2014
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Vicknesan Ayadurai, Mikael Prytz
  • Publication number: 20140192705
    Abstract: Network node (110) and method in the network node (110), for forwarding a wirelessly transmitted data packet to a second network node (120), which data packet was received from a third network node (130) with the second network node (120) as the intended recipient. The method comprises monitoring (501) data packets exchanged between the second network node (120) and the third network node (130), determining (502) that a wireless communication session is established between the second and third network nodes (120, 130), measuring (503) received signal power of wireless signals received from the second and third network nodes (120, 130), respectively, on at least two different points in time, detecting (504) a difference over time of measured (503) received signal power, identifying (506) that a data packet, transmitted by the third network node (130) is not received by the second network node (120), forwarding (507) the data packet, identified (506) as not received.
    Type: Application
    Filed: June 20, 2011
    Publication date: July 10, 2014
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Vicknesan Ayadurai, Mikael Prytz
  • Publication number: 20070274321
    Abstract: A Virtual Local Area Network, VLAN, Mapping Point enables an end user to simultaneously access multiple services through a single broadband connection. The VLAN Mapping Point is implemented at a border between first and second independently tagged VLAN regions, and includes a mapping function that receives traffic packets from each of the VLAN regions, maps VLAN tags in the packets to associated VLAN tags for the other VLAN region, and forwards the packets using the associated VLAN tags. The first VLAN region may be a last-mile network that connects to end users. and the second VLAN region may be an aggregation network that connects to a core network.
    Type: Application
    Filed: March 17, 2004
    Publication date: November 29, 2007
    Inventors: Ulf Jonsson, Wei Zhao, Vicknesan Ayadurai
  • Publication number: 20040267874
    Abstract: The address translation capabilities of packet-switched mobile networks are exploited to achieve bidirectional LAN communications therethrough. A multi-dash user VPN can be provided by encapsulating a multi-user LAN communication protocol for traversal of a packet-switched network. By encapsulating a commonly available multi-user LAN communication protocol, for example ethernet, remote LAN connectivity can be extended without requiring any host reconfiguration.
    Type: Application
    Filed: June 30, 2003
    Publication date: December 30, 2004
    Inventors: Lars Westberg, Laszlo Hevizi, Vicknesan Ayadurai
  • Patent number: 6700888
    Abstract: In packet communication paths that include header compression, header fields of packets to be communicated are altered. The alteration of the header fields does not disturb their functionality, and is transparent to the header compression scheme of the packet communication path. The altered header fields are provided for compression by the header compression scheme, resulting in improved performance of the header compression scheme. Performance improvements can also be achieved in packet communication paths that do not use header compression, by violating the integrity of header fields in packets to be transmitted over the packet communication path.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: March 2, 2004
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Lars-Erik Jonsson, Jim Sundqvist, Krister Svanbro, Zsolt Haraszti, Vicknesan Ayadurai