Patents Examined by Hoang-Chuong Vu
  • Patent number: 9398553
    Abstract: A technique may improve LDP-IGP synchronization in a MPLS network when an interface of a router coupled to a communications link along a shortest path between a source router and a destination router becomes newly active. Specifically, an IGP adjacency may be held down over the newly active link while a LDP adjacency is established over the link. The router may inject a temporary, non-redistributable route having a large administrative weight into its routing table utilizing addresses learned during establishment of the LDP adjacency. The injected route ensures that there is a reachable route to a peer router so that LDP may converge. After LDP has converged and all needed label bindings have been distributed in the MPLS network utilizing the injected route, IGP executing on the router may advertise a normal cost metric for the link associated with the newly active interface, and IGP convergence may be completed.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: July 19, 2016
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Bin Mo, David Ojemann, George Swallow
  • Patent number: 9398503
    Abstract: Various embodiments include systems, wireless modules, and methods for local IP access packet data network release. Handover data can be received at a target wireless module as part of a user equipment handover operation. The user equipment can include an active packet data network session associated with a source local home network. A determination that the target wireless module is not in the source local home network can be made based on the handover data. The target wireless module can trigger deactivation of the packet data network session in response to the determination that the target wireless module is not in the source local home network.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: July 19, 2016
    Assignee: Intel Corporation
    Inventors: Alexander Sirotkin, Chang Hong Shan, Muthaiah Venkatachalam
  • Patent number: 9397795
    Abstract: A simultaneous transmit and receive technology is described. A downlink transmission and an uplink receive beam are formed at a base station (BS) having a beam pattern with predetermined nulls. The predetermined nulls are formed over predetermined elevation angles to reduce interference with a proximate BS. Transmission and reception occur simultaneously using the beam pattern from the BS.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: July 19, 2016
    Assignee: INTEL CORPORATION
    Inventor: Yang-Seok Choi
  • Patent number: 9380406
    Abstract: The present invention is directed to a method and an apparatus for use in a wireless communication system. Specifically, the present invention is directed to a method of performing a ProSe communication by a UE in a cellular communication system and an apparatus therefore, in which the method comprises: receiving, from a BS, a first PDCCH signal including scheduling information and a CRC, wherein the CRC is masked with a ProSe-related ID; receiving, from the BS, a PDSCH signal using the scheduling information, wherein the PDSCH signal includes WLAN resources and information available for the ProSe communication; establishing a ProSe connection with a peer UE by using the WLAN resources and information; and exchanging WLAN radio signals with the peer UE in accordance with the ProSe connection, wherein the UE is configured to keep monitoring a second PDCCH signal during the WLAN radio signals are exchanged.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: June 28, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Sanggook Kim, Ki-Dong Lee
  • Patent number: 9369922
    Abstract: Technology for periodic channel state information (CSI) reporting from a user equipment (UE) configured for carrier aggregation is disclosed. One method can include the UE generating a plurality of periodic CSI reports for transmission in a subframe for a plurality of CSI processes, wherein each periodic CSI report corresponds to a CSI process with a CSI process index. A single periodic CSI report from the plurality of periodic CSI reports may be selected to multiplex with a hybrid automatic repeat request-acknowledgement (HARQ-ACK) feedback. The periodic CSI report multiplex with the HARQ-ACK feedback and any scheduling request (SR) may be determined to have a bit size less than or equal to a physical uplink control channel (PUCCH) format 3 maximum payload bit size. The periodic CSI report multiplexed with the HARQ-ACK feedback and any SR may be transmitted to a serving cell.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: June 14, 2016
    Assignee: INTEL CORPORATION
    Inventors: Seunghee Han, Alexei Davydov, Jong-Kae Fwu, Kamran Etemad
  • Patent number: 9363740
    Abstract: A method and system for reducing network load by selectively provisioning services between an access point and a carrier network is disclosed. The access point supports telecommunications services over an IP network. The access point includes a network connection and a telephone connector capable of connecting to a standard landline telephone. The access point also includes at least one detection component that detects whether a landline telephone is plugged in to the telephone connector. The access point is configured to provision a telecommunications services through the IP network when it detects that an identification module is present.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: June 7, 2016
    Assignee: T-Mobile USA, Inc.
    Inventors: Janne P. Linkola, Christopher E. Caldwell, Omar Hassan
  • Patent number: 9363225
    Abstract: In one embodiment, a method includes building an address resolution cache for a layer-3 router in a first layer-2 datacenter, where the address resolution cache includes a plurality of entries, each of the entries containing a host network address, a host hardware address, and a switch identifier for a switch serving a host, intercepting an address resolution flood within the first layer-2 datacenter that seeks address resolution for a host in a second layer-2 datacenter, and generating a response to the address resolution flood that indicates a source in the second layer-2 datacenter, where data indicating the source in the second layer-2 datacenter is accessed from the address resolution cache.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: June 7, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Victor Moreno, Dhananjaya Rao, Sanjay Sane, Sameer Merchant, Hasmit Grover
  • Patent number: 9351285
    Abstract: A convergence property as ability of removing inter-user interference of turbo equalization is improved in case of using a transmission method in which overlapping of a part of spectrum is allowed among a plurality of users.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: May 24, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Jungo Goto, Hiroki Takahashi, Osamu Nakamura, Kazunari Yokomakura, Yasuhiro Hamaguchi
  • Patent number: 9331974
    Abstract: In one embodiment, a method includes building an address resolution cache for a layer-3 router in a first layer-2 datacenter, where the address resolution cache includes a plurality of entries, each of the entries containing a host network address, a host hardware address, and a switch identifier for a switch serving a host, intercepting an address resolution flood within the first layer-2 datacenter that seeks address resolution for a host in a second layer-2 datacenter, and generating a response to the address resolution flood that indicates a source in the second layer-2 datacenter, where data indicating the source in the second layer-2 datacenter is accessed from the address resolution cache.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: May 3, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Victor Moreno, Dhananjaya Rao, Sanjay Sane, Sameer Merchant, Hasmit Grover
  • Patent number: 9325382
    Abstract: The present invention provides a method and system of providing Internet Protocol data communication in a NFC peer-to-peer mode communication environment, wherein a NFC peer to peer link is established between an initiator NFC device and a target NFC device, a first configuration frame containing IP configuration parameters associated with the initiator NFC device is transmitted to the target NFC device via a NFC interface, a second configuration frame containing IP configuration parameters associated with the target NFC device is received from the target NFC device via the NFC interface in response to the first configuration frame, and an IP communication is set up with the target NFC device over the NFC interface based on the IP configuration parameters associated with the target NFC device and IP data is exchanged with the target NFC device over the NFC interface in a NFC peer to peer mode.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: April 26, 2016
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Thenmozhi Arunan, Jayabharath Reddy Badvel, Venkata subba reddy Kota, Eun-Tae Won
  • Patent number: 9319965
    Abstract: Apparatuses and methods for channel state information reference signal (CSI-RS) configuration in distributed remote radio head (RRH) systems are described. A transmission point selection module can receive a user equipment (UE) signal via a transmission point from a plurality of transmission points sharing a single cell identification. A downlink transmission point can be selected based on the UE signal. The UE can then be configured to report CSI-RS measurements for the selected downlink transmission point.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: April 19, 2016
    Assignee: Intel Corporation
    Inventors: Yuan Zhu, Alexei Vladimirovich Davydov, Rongzhen Yang, Kamran Etemad, Xiangying Yang, Jong-Kae Fwu, Yang-Seok Choi, Yujian Zhang, Qinghua Li, Xinrong Wang
  • Patent number: 9320022
    Abstract: In a base station (100), when the number of layers employed is 1 and the employed antenna port and the antenna port used for transmitting the allocation control signal are the same, a transmission controller (102) sets a first data resource region inside a first resource region, in a resource block group (RBG), that can be used for the control channel or the data channel. When the number of layers employed is 1 and the employed antenna port and the antenna port used for transmitting the allocation control signal are different, a transmission controller (102) sets a second data resource region inside the first resource region in the RBG. The second data resource region is larger than the first data resource region.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: April 19, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Ayako Horiuchi, Akihiko Nishio, Masayuki Hoshino
  • Patent number: 9306769
    Abstract: A method for communication includes receiving a packet at a first node for transmission over a link to a second node. The data in the packet is divided into a sequence of cells of a predetermined data size. The cells have respective sequence numbers. The cells are transmitted in sequence over the link, while storing the transmitted cells in a buffer at the first node. The first node receives acknowledgments indicating the respective sequence numbers of the transmitted cells that were received at the second node. Upon receiving an indication at the first node that a transmitted cell having a given sequence number was not properly received at the second node, the stored cells are retransmitted from the buffer starting from the cell with the given sequence number.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: April 5, 2016
    Assignee: MELLANOX TECHNOLOGIES TLV LTD.
    Inventors: Gil Bloch, Michael Kagan, Diego Crupnicoff, Tamir Azarzar, Ran Ravid
  • Patent number: 9294175
    Abstract: A method for transmitting and receiving uplink signals using an optimized rank 3 codebook is disclosed. The optimized rank 3 codebook includes 6 precoding matrix groups, each of which has 1 variable having an amplitude of 1. Preferably, the optimized 4Tx rank 3 codebook has 12 precoding matrix, two precoding matrixes are selected from each the above 6 precoding matrix groups considering chordal distance and the number of precoding matrix.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: March 22, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Yu Jin Noh, Dong Wook Roh, Byeong Woo Kang, Bong Hoe Kim, Dae Won Lee
  • Patent number: 9288764
    Abstract: The present specification describes techniques and apparatuses that enable power conservation in a wireless network. In some cases these techniques and apparatuses enable power conservation during a discover phase and for a wireless network subject to a government mandate requiring a device of the network to passively search for radar transmission prior to establishing communication with another device of the network.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: March 15, 2016
    Assignee: Marvell International Ltd.
    Inventors: Raja Banerjea, Sandesh Goel, Milind Kopikare
  • Patent number: 9282557
    Abstract: A method and apparatus are described including defining a neighbor set for each access point, selecting a first clock in a first access point, the selected clock having a highest accuracy as a grand master clock, advising neighboring access points to synchronize with the selected grand master clock and transmitting a message to schedule a quiet period based on the grand master clock. Also described are a method and apparatus including receiving a beacon message, inspecting clock descriptors in the beacon message, selecting a best master clock responsive to the inspection and transmitting a message to schedule a quiet period based on the selected best master clock.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: March 8, 2016
    Assignee: THOMSON LICENSING
    Inventors: Wen Gao, Hou-Shin Chen
  • Patent number: 9277593
    Abstract: A downlink transmission/reception apparatus and a method are provided for improving a data rate in a mobile communication based on Orthogonal Frequency Division Multiple Access (OFDMA). The downlink transmission method of a base station in a mobile communication system including at least one femto cell deployed in a macro cell includes generating signals to be mapped to at least one short symbol and a plurality of long symbols in a second type of subframe for the femto cell which differs from a first type of subframe for the macro cell in frequency, the first and second types of subframes being identical with each other in the time domain, and transmitting the at least one short symbol and the plurality of long symbols at predetermined positions in the second type of subframe.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: March 1, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Younsun Kim, Jinkyu Han, Joonyoung Cho, Youngbum Kim, Taeyoung Kim, Hyojin Lee, Hyoungju Ji
  • Patent number: 9270409
    Abstract: Systems and methods for handling of an uplink transmission collision with an ACK/NACK signal are provided. The scheduled uplink transmission is refrained due to the collision. Subsequent non-adaptive retransmission for the scheduled uplink transmission may be refrained by delivering an ACK for the scheduled uplink transmission to high layers. Alternatively, subsequent non-adaptive retransmission for the scheduled uplink transmission may be refrained by setting the HARQ feedback for the scheduled transmission to ACK. In some implementations, a subsequent non-adaptive retransmission for the scheduled uplink transmission may be transmitted. If a subsequent non-adaptive retransmission is to be transmitted, the HARQ redundancy version for the subsequent non-adaptive retransmission is refrained from incrementing from the original redundancy version for the scheduled uplink transmission.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: February 23, 2016
    Assignee: BlackBerry Limited
    Inventors: Andrew Mark Earnshaw, Zhijun Cai
  • Patent number: 9258094
    Abstract: A method and apparatus of feeding back channel state information in a multi-node system are provided. The method includes receiving a reference signal of N nodes, wherein N is a natural number equal to or more than 2, aligning the N nodes in an order of preferring the N nodes based on a result of measuring the reference signal, generating channel state information for the aligned nodes, and transmitting the generated channel state information to the base station, wherein the channel state information is generated with respect to N node combinations configured from the aligned nodes, and wherein the N node combinations are obtained by adding next highest-priority nodes to a first node combination one by one, the first node combination consisting a highest-priority node among the aligned nodes.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: February 9, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Ji Won Kang, Jin Young Chun, Ki Tae Kim, Su Nam Kim, Bin Chul Ihm, Sung Ho Park
  • Patent number: 9231851
    Abstract: Disclosed is an apparatus comprising a plurality of path computation elements (PCEs) associated with a plurality of inter-coupled domains and configured to communicate with a path computation client (PCC) associated with one of the domains and to implement a Forward Search Path Computation (FSPC) for a preferred path crossing the domains from a source node in a source domain of the plurality of inter-coupled domains to a destination node in a destination domain of the plurality of inter-coupled domains, wherein the preferred path is computed without using a determined order of the domains from the source domain to the destination domain.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: January 5, 2016
    Assignee: Futurewei Technologies, Inc.
    Inventor: Huaimo Chen