Patents Examined by Un C Cho
  • Patent number: 9641430
    Abstract: In one embodiment, a plurality of packets is sent from an origin device along a communication path toward a destination device. Each packet includes a lifespan indicator which is incrementally increased for each subsequently sent packet. A plurality of response messages are received at the origin device from a plurality of intermediate devices, respectively. A plurality of secure path objects included in the plurality of response messages, respectively, is determined. Additionally, the plurality of secure path objects are validated based on validation information accessible by the origin device. Validation results of the plurality of secure path objects are checked to determine whether a packet that is sent from the origin device and received by the destination device travels along a particular communication path as dictated by control plane information.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: May 2, 2017
    Assignee: Cisco Technology, Inc.
    Inventors: Roque Gagliano, Alvaro E. Retana, Keyur P. Patel, Carlos M. Pignataro
  • Patent number: 9629047
    Abstract: A mobile station in a wireless communication network. The mobile station includes a radio communication that transmits an access request message to a base station via a first communication resource, and receives a timing adjustment in response to the access request message from the base station. The mobile station also includes an adjustment value storage unit that stores the timing adjustment, and a control unit that adjusts access timing corresponding to a second communication resource based on the timing adjustment value stored in the adjustment value storage unit. The radio communication unit then communicates with the base station via the first communication resource and the second communication resource.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: April 18, 2017
    Inventors: Hiroaki Takano, Yuichi Morioka, Ryo Sawai
  • Patent number: 9621458
    Abstract: A non-gateway node transmits an internet route request to neighbor nodes and receives, from a gateway node, a response message including an address of the gateway node and a gateway indicator. The non-gateway node sets a gateway pointer equal to this address. A gateway node receives an internet route request from neighbor nodes and transmits, to the neighbor nodes, a response message including an address of the gateway node and a gateway indicator. A non-gateway node receives, from gateway nodes on the network, an announcement of internet connectivity that includes address of the gateway nodes. The non-gateway node adds these addresses to a list of potential gateways. When the non-gateway nodes receives packets for transmission to an internet destination, it selects a gateway address from the list, and transmits the packets to a destination gateway associated with the gateway address.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: April 11, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Xun Luo, Arungundram Chandrasekaran Mahendran
  • Patent number: 9614603
    Abstract: An iterative precoding method for a TDD data transmission system includes a transmitter provided with N transmit antenna(s) (N?1), and a receiver provided with M receive antennas (M?2). A series of precoders Ln (n?0) is defined. Each iteration includes: the transmitter takes account of a predetermined value n=n0 if it is the first iteration, or else a value of n obtained during the preceding iteration; the transmitter sends a triplet of pilot signals precoded with the precoders Ln, Ln+1, and Ln+2 to the receiver; the receiver estimates the triplet (Tn, Tn+1, Tn+2) of total data rates that can be achieved corresponding respectively to (Ln, Ln+1, Ln+2), and deduces therefrom the value of a control command p; the receiver sends a signaling message specifying the value of the control command p; and on receiving the signaling message, the transmitter updates the value of n, by replacing it with the value (n+p).
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: April 4, 2017
    Assignee: ORANGE
    Inventor: Dinh Thuy Phan Huy
  • Patent number: 9602569
    Abstract: Telecommunications equipment may require network connectivity. On newer systems, an additional local management interface is provided for proprietary maintenance functions, typically via a shell-based Command Line Interface. This is not available on remote sites with only TDM connections. The invention provides a method of communicating between a management console and remote access equipment via a class 4 telecommunications switch, which comprises establishing an IP connection, establishing a synchronous telecommunications transport connection between the class 5 switch and the remote access equipment, setting up a voice call between the management console and the remote access equipment, passing the voice call over the IP connection as a VOIP call, passing the voice call over the synchronous telecommunications transport connection as a PCM encoded call, and encapsulating an IP data stream in the VOIP and PCM encoded call to establish an end-to-end IP.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: March 21, 2017
    Assignee: Metaswitch Networks Limited
    Inventors: Craig Miller, John Batty, John Tucker, Mark Overton, Shriman Gurung, Doug Theobald, David Smith
  • Patent number: 9584272
    Abstract: A first radio network node (110) and a method therein for measuring interference as well as a second radio network node (120) and a method therein for enabling the first radio network node to measure interference are disclosed. The first radio network node (110) obtains (201) configuration information for indicating a designated subframe in which a reference signal for measurement of the interference is to be transmitted by the second radio network node (120). The second radio network node (120) obtains (202) configuration information for configuring a designed subframe for transmission of a reference signal. The first radio network node (110) receives (205), in the designated subframe indicated by the configuration information, the reference signal transmitted by the second radio network node (120). The first radio network node (110) determines (206) a value of the interference based on the reference signal.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: February 28, 2017
    Inventors: Shaohua Li, Zhiheng Guo, Jinhua Liu, Xinghua Song, Zhan Zhang
  • Patent number: 9584283
    Abstract: A method for receiving, by a UE, information for interference cancellation, the method includes receiving assistance control information for removing interference data from a neighboring eNB; and receiving primary control information indicating the interference data using the assistance control information, the assistance control information includes at least one of control channel element (CCE) indices, an aggregation level and a downlink control information (DCI) format of a control channel on which the primary control information is transmitted and cyclic redundancy check (CRC) bits for the control channel, the assistance control information includes sub-assistance control information on neighboring UEs simultaneously scheduled by the neighboring eNB.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: February 28, 2017
    Assignee: LG Electronics Inc.
    Inventors: Hanjun Park, Kijun Kim, Jonghyun Park
  • Patent number: 9578672
    Abstract: A non-transitory computer readable medium with computer executable instructions stored thereon executed by a processor in a vehicle comprising a wireless local area network interface and a wireless cellular network interface provides a communication method. The method comprises automatically initiating a first transport protocol session between said mobile router and said mobile device over said wireless local area network interface; and automatically initiating a second transport protocol session between said mobile router and said destination device over said wireless cellular network interface, said second transport protocol session comprising a cellular network layer and a wide area network layer. The cellular network layer and the wide area network layer are monitored to detect if the wide area network layer or the cellular network layer is interrupted.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: February 21, 2017
    Inventor: Douglas S Moeller
  • Patent number: 9578651
    Abstract: A communication method of a device to device (D2D) user equipment (UE) in a cellular system supporting a communication frame structure including one or more subframes used for a communication of the D2D UE is provided. The method includes reading an alarm region located within a first subframe, wherein the alarm region indicates whether a communication signal having a priority is included in the first subframe or a second subframe related to the first subframe, and transmitting the communication signal through one of the second subframe and a third subframe related to the second subframe, based on information read from the alarm region.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: February 21, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Seok Ryu, Seung-Hoon Park, Chi-Woo Lim
  • Patent number: 9571376
    Abstract: A physical layer communication device (PHY) transmits and receives signal to and from a communication link using a synchronous protocol. The PHY communicates with a higher-layer device using a packet protocol. Timestamp values contained in timing-related messages in some packets are written or modified by the PHY. Delays incurred in transmitting and receiving the packets are predicted and used in setting the timestamp values.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: February 14, 2017
    Assignee: Microsemi Communications, Inc.
    Inventors: Ron Swartzentruber, Ganesh Rao
  • Patent number: 9571609
    Abstract: A protocol converter includes a processor configured to receive a request for content from a client system. The processor is further configured to determine if the protocol converter is currently receiving the content through the multicast session, and join the multicast session if the protocol converter is not currently receiving the content. Additionally, the processor is configured to receive the content as an end point of the multicast session, format the content for communication to the client system, and provide content to the client system in a communication separate from the multicast session. Receiving the content as an end point of the multicast session can include terminating the application layer protocol used by the multicast session. Additionally, formatting the content can include re-encapsulating the content as hypertext transport protocol (HTTP) with an appropriate content-type.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: February 14, 2017
    Inventors: Alan L. Glasser, Andrew G. Gauld, John F. Lucas
  • Patent number: 9565083
    Abstract: Systems are disclosed for automated protection switching enabled by in-band signaling. A status monitor coupled to a switch fabric may be operable to read signal quality information from cells packet-switched over the fabric, the cells carrying traffic signals from one or more working channels between two network nodes. The status monitor may apply a protection algorithm to the signal quality information to determine whether a traffic signal on a working channel meets requirements indicative of channel failure or degradation sufficient to move the traffic signal to an additional protection channel between the two nodes. The status monitor may encode a request to transfer this traffic signal in cells switched by the fabric. In some examples, this request may be encoded in an optional user and fabric overhead field of cells consistent with the Optical-Transport Network (OTN) over Packet Fabric Protocol (OFP).
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: February 7, 2017
    Assignee: Ciena Corporation
    Inventor: Martin G. Belanger
  • Patent number: 9565128
    Abstract: A Generalized-Multi-Protocol Label Switching controlled network is described, as is a method for managing services in the network under conditions of disrupted control plane connectivity. Nodes of the network use a Resource Reservation Protocol with Traffic Engineering extension, RSVP-TE, to allocate and provision resources of the network. Each of the nodes is adapted to evaluate local RSVP Path or Resv state data after having sent at least one signaling message to a receiving neighboring node without receipt of an acknowledgement message from said receiving node within a configurable time to determine an IP address of a node being located after the non-responsive receiving node along a service path of a service in a downstream or upstream direction. Each node is adapted to send the signaling message to the determined IP address of the next node located behind the non-responsive receiving node along the service path.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: February 7, 2017
    Assignee: ADVA Optical Networking SE
    Inventors: Igor Bryskin, Vishnu Beeram
  • Patent number: 9565121
    Abstract: A mobile communication system includes a control device and a base station device. Data communication between the control device and the base station device is conducted using a fixed-length data size and a variable-length data size. The control device transmits information indicating whether a data size of the data communication has a fixed length or a variable length. The base station device receives the information from the control device.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: February 7, 2017
    Inventors: Yoshio Ueda, Sadafuku Hayashi
  • Patent number: 9565665
    Abstract: Disclosed is a method for a base station to transmit a downlink control channel in a wireless communication system. Specifically, the method comprises the steps of: determining, on the basis of the number of usable resource elements in one pair of resource blocks, the size of a resource allocation unit for a downlink control channel and the number of resource allocation units within one pair of resource blocks; mapping the downlink control channel, from a preset number of resource block pairs, to the transmission resource on the basis of the determined resource allocation unit; and transmitting the downlink control channel to a terminal, wherein the size of the resource allocation unit is defined by the number of resource elements and is varied according to the number of usable resource elements.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: February 7, 2017
    Assignee: LG Electronics Inc.
    Inventors: Myoungseob Kim, Hanbyul Seo
  • Patent number: 9544844
    Abstract: A wireless communication apparatus operates in tributary to a control station that performs a time division multiplex communication. The wireless communication apparatus includes a switch unit that switches on/off a power supplied from a battery; a power supply control unit that controls the switch unit; a RAM to which a power is constantly supplied from the battery; a control unit that receives the power supplied through the switch unit. The control unit writes information for determining an operating state in the RAM when being shifted to a standby state. The power supply control unit turns off the switch unit upon receiving a signal of a power supply off. When the control unit is re-supplied with the power through the switch unit, the control unit determines an operation based on the information for determining the operating state stored in the RAM.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: January 10, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Toshiyuki Sugitani
  • Patent number: 9537675
    Abstract: Provided is a method of transmitting and receiving personal broadcasting data in a peer-to-peer (P2P) based network. A terminal (client) that receives a personal broadcast requests a tracker server for a viewing reservation by using electronic program guide (EPG) information or a uniform resource locator (URL) of a personal broadcasting channel, a terminal (broadcaster) that transmits personal broadcasting data receives a list of clients that made a viewing reservation of the personal broadcast from the tracker server and notifies the clients about starting of the personal broadcast when it is time to start the personal broadcast. Accordingly, the client starts streaming when notified of the starting of the personal broadcast by connecting to the personal broadcasting channel after making the viewing reservation, without having to wait for the personal broadcast to start.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: January 3, 2017
    Inventors: Guanhua Zhang, Hee-Seok Yu, O-Hoon Kwon, Sung-Bin Im, Akhil Chapalamadugu
  • Patent number: 9526116
    Abstract: The present invention relates to a method for granting medium access to a node in a wireless network, the network comprising at least two nodes, and the method comprising the step of determining, for one of the at least two nodes, a medium access rate to be used, a medium access rate determining how often a node transmits data throughout the network, wherein the rate is determined as being different from one node to another and dependent on the number of neighbors of a node. The invention also relates to a wireless radio network comprising at least two nodes, wherein a medium access rate to be used by a node is determined as being different from one node to another and dependent on the number of neighbors of a node, a medium access rate determining how often a node transmits data throughout the network.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: December 20, 2016
    Inventors: Theodorus Jacobus Johannes Denteneer, Augustus Josephus Elizabeth Maria Janssen, Peter Maria Van De Ven, Johannes Simeon Hendrikus Van Leeuwaarden
  • Patent number: 9526085
    Abstract: A communication station includes a modulation circuit, a mapping circuit and a transmitting circuit. The modulation circuit is configured to operably modulate the master information block (MIB). The mapping circuit is configured to operably map the modulated MIBs to the new carrier type physical broadcast channel (PBCH). The PBCH is configured in a plurality of radio frames. The transmitting circuit is configured to operably transmit the radio frames. Moreover, the mapping circuit maps the modulated MIBs to only part of six central radio blocks of the predetermined subframes of the radio frames. The six central radio blocks are configured to locate around the DC subcarrier.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: December 20, 2016
    Assignee: Industrial Technology Research Institute
    Inventor: Chia-Pang Yen
  • Patent number: 9516496
    Abstract: The embodiments disclose a data transmission method, an evolved NodeB (eNB) and a User Equipment (UE), which can avoid data transmission conflict, and improve data transmission performance and scheduling flexibility. The method according to the embodiments comprises: selecting, by an eNB, a second subframe from a plurality of subframes, when the eNB does not correctly receive a data packet transmitted by a UE in a first subframe; and transmitting, by the eNB, a scheduling signaling to the UE, so that the UE transmits a retransmission packet of the data packet in the second subframe. The embodiments further provide an eNB and a UE. The embodiments of the present invention can effectively avoid data transmission conflict, and improve data transmission performance and scheduling flexibility.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: December 6, 2016
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Lei Guan, Yongxia Lv