Patents Examined by Andrew Oh
  • Patent number: 10129855
    Abstract: Systems and methods are described for transmitting multicast content via a unicast mode of transmission. An access node schedules wireless transmissions to a plurality of wireless devices to transmit separate control and header information to each of the wireless devices. The access node also schedules wireless transmissions to the plurality of wireless devices to transmit a single multicast content payload that is commonly used by all of the wireless devices.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: November 13, 2018
    Assignee: Sprint Spectrum L.P.
    Inventors: Muhammad A Naim, Yu Zhou, Volkan Sevindik, Shahzada Rasool
  • Patent number: 10123261
    Abstract: A method of scanning an access point is disclosed. The method of scanning the access point includes creating a probe request frame including information created based on an identifier of an access point to be searched, and transmitting the probe request frame. Thus, it is possible to decrease the time and power consumed by a terminal when searching an access point.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: November 6, 2018
    Assignee: KT Corporation
    Inventors: Yang Seok Jeong, Joo Young Kim
  • Patent number: 10091095
    Abstract: A system has a group of nodes that perform multi-hop communication therebetween and a communications apparatus that communicates with a node included in the group of nodes. The node adds to data transmitted by the node, a hop count updated each time the data is transferred by the multi-hop communication and a reference hop count for the data to be transferred from the node to the communications apparatus, and transmits the data. The communications apparatus, when receiving the data, compares the reference hop count and the hop count added to the data, and based on a result of comparison, determines whether failure has occurred at a given node in the group of nodes.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: October 2, 2018
    Inventors: Toshiya Otomo, Koichiro Yamashita, Takahisa Suzuki, Hiromasa Yamauchi
  • Patent number: 10085293
    Abstract: A wireless telecommunications system supports a DRX operating mode for communications between a base station and terminal device. This mode includes a regular and repeating cycle of DRX inactive periods in which the terminal device monitors a downlink channel from the base station and DRX active periods during which the terminal device enters a power-saving mode and does not monitor the downlink channel. The terminal device transmits uplink signalling that is a trigger for subsequent downlink signalling. The base station receives the uplink signalling, determines the time of an upcoming DRX inactive period for the terminal device, and delays transmitting downlink signalling in response to the uplink signalling until the upcoming DRX inactive period. The terminal device enters the power saving mode after transmitting the uplink signalling and exits the power saving mode for the DRX inactive period to monitor the downlink channel for the downlink signalling.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: September 25, 2018
    Inventors: Jussi Kahtava, Derek John Richards
  • Patent number: 10075977
    Abstract: A method for transmitting data in wireless LAN may include the step of: receiving a non-target RTS frame from a second STA by a first STA, wherein the non-target RTS frame includes an RA field indicating a third STA; when the first STA does not receive a non-target CTS frame after a predetermined time and tries to transmit a data frame to an AP, transmitting an RTS frame to the AP by the first STA, wherein the non-target CTS frame is a response frame to the non-target RTS frame; and when the first STA has received a CTS frame in response to the RTS frame from the AP, transmitting the data frame to the AP by the first STA.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: September 11, 2018
    Inventors: Jeongki Kim, Kiseon Ryu, Giwon Park, Hangyu Cho, Suhwook Kim
  • Patent number: 10063675
    Abstract: A device may activate a layer 3 interface of the device based on activation of a first layer 2 interface associated with the layer 3 interface. The device may detect activation of a second layer 2 interface, associated with the layer 3 interface, after activating the layer 3 interface. The device may activate a filter to prevent transfer of network traffic via the second layer 2 interface based on detecting activation of the second layer 2 interface. The device may perform duplicate address detection, in association with the second layer 2 interface, for a layer 3 network address assigned to the device. The device may determine whether the layer 3 network address is a duplicate network address based on performing the duplicate address detection. The device may selectively maintain or deactivate the filter based on determining whether the layer 3 network address is a duplicate network address.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: August 28, 2018
    Assignee: Juniper Networks, Inc.
    Inventors: Reji Thomas, Jithin Girish, Pranavadatta D N
  • Patent number: 10003990
    Abstract: A communication device is described comprising a transmitter configured to transmit data according to a retransmission protocol, a determiner configured to determine whether, for a transmission time scheduled according to the retransmission protocol, there was a transmission gap within a predetermined time interval before the transmission time or to determine whether there will be a transmission gap within a predetermined time interval after the transmission time and a controller configured to control the transmitter to perform an initial transmission of data or a retransmission of data according to the retransmission protocol at the transmission time based on the result of the determination.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: June 19, 2018
    Inventors: Tobias Scholand, Roland Hellfajer, Chandra Prakash Gupta
  • Patent number: 9927858
    Abstract: Sleeping device(s) may be changed from a sleeping state to an awake state using a multicast packet that sent to a multicast address of a multicast wake-up group. The packet may include an identifier for one or more particular device(s) in the multicast group, which, when received by the device(s), causes the device(s) to wake up.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: March 27, 2018
    Inventors: Sumit Garg, Murari Sridharan
  • Patent number: 9900064
    Abstract: A method employing linear precoding and non-linear precoding for transmitting data between at least two transmitters and a plurality of receivers via a plurality of communication channels over a plurality of subcarrier frequencies, the method comprising the procedures of transmitting by either one of said at least two transmitters, at least two training signals to respective said receivers; receiving by respective said receivers, said at least two training signals; evaluating channel characteristics of at least part of said communication channels, according to said at least two training signals; determining a precoding scheme selection that defines for at least part of said communication channels, over which of said subcarrier frequencies, said data transmitted shall be preceded using either one of linear precoding and non-linear precoding, according to evaluated said channel characteristics; precoding said data according to determined said precoding scheme selection; and transmitting said data according said
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: February 20, 2018
    Assignee: Sckipio Technologies S.I Ltd
    Inventors: Rami Verbin, Rani Keren, Guy Reina
  • Patent number: 9900913
    Abstract: Provided is a method for adjusting channel frequency domain offset of a physical random access channel (PRACH), comprising: determining the current frequency domain location of a PRACH; obtaining interference over thermal (IOT) values of physical resource blocks (PRB) of all uplink subframes; comparing the IOT values of all the PRBs of the uplink subframes with an IOT detection threshold to determine from all the PRBs of the uplink subframes a plurality of PRBs with the IOT values above the IOT detection threshold; judging whether the plurality of PRBs with IOT values above the IOT detection threshold overlap with the current frequency domain location of the PRACH; if yes, then adjusting the channel frequency domain offset of the current frequency domain location of the PRACH based on a predetermined adjustment rule to determine the adjusted channel frequency domain offset.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: February 20, 2018
    Assignee: Datang Mobile Communications Equipment Co., Ltd.
    Inventor: Songhe Lu
  • Patent number: 9882943
    Abstract: A method is proposed for providing a mobile terminal associated with a user with access to a visited Internet Protocol based mobile communication network. The mobile terminal generates a network information element that comprises a home network identifying element that identifies a home network of the user, and a domain name of the visited IP based mobile communication network as a base domain identifier. The mobile terminal then provides this special network information element to visited IP based mobile communication network, which executes a subscription generating procedure for generating a subscription for the user upon recognizing the special network information element and provides the mobile terminal access based on the generated subscription.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: January 30, 2018
    Inventors: Fredrik Lindholm, Bo Åström, Alf Heidermark
  • Patent number: 9860184
    Abstract: Disclosed is a method and apparatus for a packet data flow to use markings on packets (93, 94) that indicate the longest instantaneous queue length on a path in order to rapidly increase the flow rate up to an available capacity of a network node without overshoot, in order to avoid the TCP Slow start process.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: January 2, 2018
    Assignee: BRITISH TELECOMMUNICATIONS public limited company
    Inventor: Robert John Briscoe
  • Patent number: 9860081
    Abstract: A method, apparatus and computer program product for providing multi-homing techniques for SPB networks is presented. A set of UNI nodes that receive multicast packets are determined based on Backbone Media Access Control-Destination Address (BMAC-DA)/I-Tag Service Identifier (I-SID) of received multicast packets for multicast packets within a transport network. A separate Egress Port Mask is determined for each Backbone-Virtual Local Area Network (B-VLAN) of the transport network, wherein the Egress Port Mask is determined such that only one UNI node of the set of UNI nodes forwards said multicast packets. A set of UNI copies of said multicast packets are filtered out by applying the Egress Port Mask, wherein copies that are not in the Egress Port Mask are dropped. Copies of multicast packets that are not dropped are sent out.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: January 2, 2018
    Assignee: Extreme Networks, Inc.
    Inventors: Srikanth Keesara, Roger Lapuh
  • Patent number: 9854571
    Abstract: In the present invention, disclosed is a method for a base station transmitting a downlink control channel to user equipment in a wireless communication system. More specifically, the method comprises the steps of configuring resource elements, which are included in each of a plurality of resource blocks, as a plurality of resource element groups comprising a predetermined number of resource elements; allocating antenna ports to the resource elements which are included in each of the plurality of resource element groups; allocating as a transmission resource for the downlink control channel, at least one resource element group from each of the plurality of resource blocks; and transmitting the downlink control channel to the user equipment by using the transmission resource.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: December 26, 2017
    Inventors: Myoungseob Kim, Hanbyul Seo, Hyukjin Chae, Inkwon Seo, Seungmin Lee
  • Patent number: 9842180
    Abstract: A NoC timing power estimating method includes: estimating a plurality of transmission timing of a plurality of transmission units of at least a packet, the transmission timing indicating respective time points at which the transmission units enter/leave a plurality of passing elements of the NoC; based on the transmission timing of the transmission units, estimating respective circuit states and respective power states of the passing elements of the NoC, the circuit state indicating an operation state of the passing element and the power state being related to the circuit state; and based on the power states of the passing elements of the NoC, estimating power consumption of the NoC.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: December 12, 2017
    Inventors: Ting-Shuo Hsu, Jing-Jia Liou, Jih-Sheng Shen, Juin-Ming Lu
  • Patent number: 9826495
    Abstract: An apparatus and method are disclosed for testing synchronization of transmission between systems operating at different clock rates. The apparatus includes a transmitting unit configured to operate at a first clock rate, and a receiving unit configured to operate at a second clock rate that is different from the first clock rate. A compensation circuit receives a second clock rate from a frequency generating system, and synchronizes the data transmitted by the transmitting unit with the second clock rate. The synchronized data is then transmitted to the receiving unit.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: November 21, 2017
    Inventors: Neil H. Tender, Esmail H. Chitalwala
  • Patent number: 9826287
    Abstract: A method, system and apparatus for announcing caller information to users over a television link. The method comprises receiving, via a portion of a data network adapted for handling Voice-over-IP (VoIP) calls, Session Initiation Protocol (SIP) signalling information associated with an incoming call destined for a destination party, the SIP signalling information comprising a portion conveying information regarding an origin of the incoming call and information regarding an identity of the destination party. The method further comprises attempting to establish a telephony link with a device associated with the destination party over a communication network in response to the receiving. The method further comprises releasing the portion of the SIP signalling information to a processing entity to cause delivery of an indication of the origin of the incoming call over a television link associated with the destination party, the indication based on the information regarding an origin of the incoming call.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: November 21, 2017
    Assignee: BCE Inc.
    Inventors: Sieark Joseph Soo, Marie Berthe Barbara Wilkes, Martin Pierre Beauvais
  • Patent number: 9820331
    Abstract: Disclosed is a method and system for release of a UE's context record in response to failure of air interface communication. As disclosed, a wireless communication system includes a base station that has a protocol stack defining a series of logical processing layers through which the base station sequentially processes data for transmission to a UE. The layers include an upper layer and a physical layer at which the base station processes the data for communication over an air interface to the UE. Accordingly, the base station detects failure of air interface communication between the base station and the UE. In response to detecting the failure, and without waiting to detect at the upper layer a further failure corresponding with the failure of the air interface communication, the base station transmits to a network controller a UE-context release request requesting release of bearer context that was established for the UE.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: November 14, 2017
    Assignee: Sprint Spectrum L.P.
    Inventors: Jasinder P. Singh, Siddharth S. Oroskar, Anoop K. Goyal
  • Patent number: 9794814
    Abstract: A method and apparatus for performing communication in a wireless communication system are provided. The method includes identifying a transmission mode configured for a serving cell by a Base Station (BS), by a User Equipment (UE), identifying an antenna configuration of the BS by the UE, determining the number of bits for a Rank Indication (RI) representing the number of layers based on the transmission mode and the antenna configuration, and generating an RI using the determined number of bits and transmitting the RI in transmission resources of the serving cell to the BS.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: October 17, 2017
    Inventors: Soeng-Hun Kim, Gert Jan Van Lieshout, Kyeong-In Jeong
  • Patent number: 9794193
    Abstract: A fabric manager includes: a processing unit having a service chain creation module configured to create a service chain by connecting some of a plurality of nodes via virtual links; wherein the some of the plurality of nodes represent respective network components of an auxiliary network configured to obtain packets from a traffic production network; and wherein the service chain is configured to control an order of the network components represented by the some of the plurality of nodes packets are to traverse.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: October 17, 2017
    Assignee: Gigamon Inc.
    Inventor: Anil Rao