Patents Assigned to FutureWei Technologies
  • Systems and methods for implementing multi-topology support for label distribution protocol (LPD) of a multiprotocol label switching network
    Patent number: 8243625
    Abstract: System and method for support multiple topology in Label Distribution Protocol of Multi-Protocol Label Switching (MPLS) network are disclosed. The system includes a number of network elements and a communication mechanism used to connect the network elements. The network elements discover LDP peers within the network topology, and create and maintain LDP sessions for each of the network topologies. The network elements further establish LSPs by mapping network layer routing information within each network topology to data link layer switches paths. Furthermore, the communication mechanism enables the network elements to advertise the multi-topology capability and exchange the mapping information of label and FECs within each network topology.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: August 14, 2012
    Assignee: FutureWei Technologies, Inc.
    Inventors: Huaimo Chen, Qianglin Q. Zhao, Hua A. Liu
  • System and method for unsynchronized cooperative spectrum sensing in cognitive radio nodes
    Patent number: 8244185
    Abstract: System and method for unsynchronized cooperative spectrum sensing in cognitive radio nodes. A method comprises receiving spectrum sensing information from a plurality of communications nodes, computing for each communications node in the plurality of communications nodes, a likelihood ratio based on spectrum sensing information provided by the communications node, combining the likelihood ratios, and computing a decision value based on the combined likelihood ratio. Each communications node determines its respective spectrum sensing information at a time unrelated to times when other communications nodes determine their spectrum sensing information.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: August 14, 2012
    Assignee: Futurewei Technologies, Inc.
    Inventors: Xiangwei Zhou, Young Hoon Kwon, Anthony C. K. Soong
  • Priority sorting
    Patent number: 8243744
    Abstract: Sort elements, such as queues processed in a network processor, are provided with relative priorities relative to each other. A set of relative priorities is used to specify priority order of the sort elements. The priority order may be specified by addressing code in a jump table. Duplicate code in the jump table having multiple entrance points allows for reduction of the size of the jump table. The relative priorities may be applied to a lookup table, hash or other function in order to address the jump table.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: August 14, 2012
    Assignee: FutureWei Technologies, Inc.
    Inventors: Larry R. Dennison, Derek Chiou
  • System and method for precoding codebook adaptation with low feedback overhead
    Patent number: 8243610
    Abstract: A system and method for wireless communications with codebook adaptation with low feedback overhead are provided. A method for controller operations includes receiving a first channel information from a communications device, estimating channel statistics based on the first channel information, adapting a codebook using the channel statistics, and receiving a second channel information from the communications device. The method also includes constructing a precoding matrix from the second channel information and the adapted codebook, and transmitting information precoded by the precoding matrix to the communications device.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: August 14, 2012
    Assignee: FutureWei Technologies, Inc.
    Inventors: Zhigang Rong, Pengfei Xia, Yang Tang
  • Upgraded codeword lock state machine
    Patent number: 8245095
    Abstract: An apparatus comprising a Forward Error Correction (FEC) processor coupled to an optical receiver, wherein the FEC processor is configured to compare a plurality of received blocks to a plurality of FEC codeword blocks comprising a plurality of parity blocks, and upon detecting a misaligned block in the received blocks, compare at least some of the remaining received blocks to the parity blocks. Also included is an apparatus comprising at least one component configured to implement a method comprising receiving a plurality of blocks, wherein the quantity of received blocks is equal to a quantity of blocks in a FEC codeword, selecting one of the received blocks, determining whether the selected block is aligned with the FEC codeword, and determining whether the remaining blocks correspond to the FEC codeword when the selected block is not aligned with the FEC codeword.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: August 14, 2012
    Assignee: Futurewei Technologies, Inc.
    Inventors: Peng Ou, Frank J. Effenberger
  • System and Method for Remote Party Restrictions in a Communications System
    Publication number: 20120203860
    Abstract: A system and method for remote party restrictions in a communications system are provided. A method for controller operations includes receiving a request from a first communications device to replicate a media flow that is being transmitted to the first communications device from a second communications device during a session, where the replicated media flow is to be provided to a third communications device, and where the second communications device is operated by a remote user. The method also includes allocating resources to a transmission of the replicated media flow to the third communications device, notifying the remote user of the request, and determining a response of the remote user to the request.
    Type: Application
    Filed: September 14, 2011
    Publication date: August 9, 2012
    Applicant: FutureWei Technologies, Inc.
    Inventors: Lee Valerius, Amarjit Deol, Lili Yang
  • Asymmetric ring topology for reduced latency in on-chip ring networks
    Publication number: 20120201171
    Abstract: An apparatus comprising a chip comprising a plurality of nodes, a first plurality of links connecting the plurality of nodes in a first ring network having a first topology, and a second plurality of links connecting the plurality of nodes in a second ring network having a second topology, wherein the first topology is different than the second topology.
    Type: Application
    Filed: October 31, 2011
    Publication date: August 9, 2012
    Applicant: Futurewei Technologies, Inc.
    Inventors: Rohit Sunkam Ramanujam, Sailesh Kumar, William Lynch
  • Method and Apparatus for a Control Plane to Manage Domain-Based Security and Mobility in an Information Centric Network
    Publication number: 20120204224
    Abstract: A networking system comprising a virtual group controller in an information centric network configured to enable mobility and security for a plurality of users groups of the information centric network, a plurality of user groups coupled to the virtual group controller and associated with the users, a plurality of agents that are each associated with one of the user groups, and a database for trusted service profile coupled to the virtual group controller, wherein the virtual group controller is configured to interact with the agents to enable mobility for the user groups using a server-less domain-based naming scheme.
    Type: Application
    Filed: January 18, 2012
    Publication date: August 9, 2012
    Applicant: Futurewei Technologies, Inc.
    Inventors: Guoqiang Wang, Xinwen Zhang, Ravi Ravindran
  • Method and apparatus for generating optical duobinary signals with enhanced receiver sensitivity and spectral efficiency
    Patent number: 8238757
    Abstract: An optical network transmitter comprising a fractional-bit delay module, an optical modulator coupled to the fractional-bit delay module, and a band-limiting optical filter coupled to the optical modulator. Also disclosed is a transmission system comprising a source configured to generate two complementary binary data streams, a fractional-bit delay module in communication with the source and configured to delay one of the complementary binary data streams, a modulation module in communication with the source and the fractional-bit delay module and configured to convert the undelayed complementary binary data streams and the delayed complementary binary data streams into a fractional-bit delayed optical duobinary signal, and a band-limiting node in communication with the modulation module and configured to filter and transmit the optical duobinary signal.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: August 7, 2012
    Assignee: Futurewei Technologies, Inc.
    Inventors: Yu Sheng Bai, Yanjun Zhu, Rong Zhang, Jizhong Liu, Jian Deng
  • Dynamic transmitter noise level adjustment for digital subscriber line systems
    Patent number: 8238450
    Abstract: An apparatus comprising an artificial noise (AN) controller coupled to a digital subscriber line (DSL) transmitter and configured to adjust an AN level for a signal transmitted by the DSL transmitter, wherein the AN level is adjusted based on an actual signal to noise ratio (SNR) of the signal from the receiver to achieve a desired SNR for the signal. Also disclosed is a method comprising maintaining a data rate in a line at about a desired level by adjusting an AN level in a transmitted signal based on a SNR of a received signal.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: August 7, 2012
    Assignee: Futurewei Technologies Inc.
    Inventors: Sanjay Gupta, Amir H. Fazlollahi, Guozhu Long, Ying Li, Raphael Jean Cendrillon
  • Distributing wavelength compatible with signaling protocols
    Patent number: 8238749
    Abstract: An apparatus, comprising a first node configured to communicate with a second node to generate a wavelength assignment, wherein the first node is configured to send a wavelength availability information to the second node. Included is a network component comprising at least one processor configured to implement a method, comprising receiving a wavelength availability information, and updating the wavelength availability information using a local wavelength availability information. Also included is a method, comprising acquiring a local wavelength assignment information, calculating a local wavelength availability information, and transmitting the local wavelength availability information to a subsequent network element on a lightpath.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: August 7, 2012
    Assignee: Futurewei Technologies, Inc.
    Inventors: Greg Bernstein, Young Lee
  • Optimal path selection for accessing networked applications
    Patent number: 8238334
    Abstract: An efficient and user-friendly application service access method utilizing network dynamic conditions and application traffic requirements. This method allows applications to register their servers' location information and traffic requirements with the network and provides an optimal connection to application service without specifying an application server location for an end user and based on network conditions and application requirements.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: August 7, 2012
    Assignee: Futurewei Technologies Inc.
    Inventors: Linda Dunbar, Lucy Yong, Young Lee
  • Transport multiplexer—mechanisms to force ethernet traffic from one domain to be switched in a different (external) domain
    Patent number: 8238340
    Abstract: A network comprising a switch configured to switch traffic between a plurality of external interfaces via a plurality of virtual interfaces associated with the external interfaces, wherein the traffic comprises a plurality of external virtual local area network (VLAN) identifiers (VIDs) associated with the external interfaces to select the virtual interfaces, and wherein the virtual interfaces are configured to forward traffic based on an internal VID that is assigned to the traffic independent of the external VID. Also disclosed is a network component comprising at least one processor configured to implement a method comprising receiving a frame from a physical port, obtaining an external VID from a VLAN tag in the frame, removing the VLAN tag from the frame, selecting a virtual interface based on the external VID, and delivering the frame to the selected virtual interface.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: August 7, 2012
    Assignee: Futurewei Technologies, Inc.
    Inventors: T. Benjamin Mack-Crane, Linda Dunbar, Robert Sultan, Lucy Yong
  • Spatial mode adaptation at the cell edge using interferer spatial correlation
    Patent number: 8233926
    Abstract: A system and method is proposed for adapting the spatial transmission strategy in a cellular MIMO (multiple input multiple output) communication system for the downlink. Spatial mode adaptation, the choice of multiplexing, transmit diversity, number of streams, space-time code family, and the like are performed slowly based on side information from other base stations. Base stations exchange their transmission plans with neighboring base stations and broadcast this information to active users. Each user measures its susceptibility to spatial interference and returns this information to the base station. The base station then schedules active users according to the decisions made in interfering base stations and the preferred transmission strategies of its own users.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: July 31, 2012
    Assignee: FutureWei Technologies, Inc.
    Inventors: Robert Heath, Tao Wu
  • System and Method for Assisted Open Loop Multiple Input, Multiple Output Communications
    Publication number: 20120190309
    Abstract: A system and method for assisted open loop (OL) multiple input, multiple output (MIMO) communications are provided. A method for controller operations includes: adjusting a transmitter used to transmit information in OL MIMO transmissions, the adjusting based on partial channel information for a channel between a controller and a communications device; and transmitting to the communications device using the adjusted transmitter.
    Type: Application
    Filed: January 21, 2011
    Publication date: July 26, 2012
    Applicant: FutureWei Technologies, Inc.
    Inventor: Yang Tang
  • Method and apparatus for transmitting control information in a system with new and legacy mobile stations
    Patent number: 8228850
    Abstract: A method of transmitting control information to new and legacy mobile stations in a wireless communications system is disclosed. In one embodiment, a method and apparatus for the base station to transmit control information in a system with new and legacy mobile stations is disclosed. In another embodiment, a method and apparatus for the mobile station to transmit control information is disclosed.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: July 24, 2012
    Assignee: FutureWei Technologies, Inc.
    Inventors: Sean Michael McBeath, Anthony C. K. Soong
  • Internet protocol version 4 support for proxy mobile internet protocol version 6 route optimization protocol
    Patent number: 8228843
    Abstract: A network component comprising at least one processor configured to implement a method comprising promoting an optimization of a communications route associated with a mobile node (MN) and a correspondent node (CN) using Internet Protocol version 4 (IPv4) packets is disclosed. Also disclosed is a network comprising a mobility access gateway (MAG) in communication with a MN, and a CN in communication with the MAG and that desires to communicate with the MN, wherein a communications route between the MN and the CN is optimized using IPv4 signaling. Included is a method comprising promoting an optimization of a communications route between a MN and a CN using IPv4 signaling. Standalone CNs and CNs under a MAG embodiments are supported.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: July 24, 2012
    Assignee: Futurewei Technologies, Inc.
    Inventor: Behcet Sarikaya
  • Method and system for interworking between two different networks
    Patent number: 8224330
    Abstract: Systems and methods for interworking between two different networks are presented. In one embodiment, a method for wireless communication includes requesting a network access from an access point of a first network, and transmitting an EAP authentication request from the access point to a user end. An EAP authentication request response is sent from the user end to the access point. The EAP authentication request response includes an attach type indicator that indicates to a gateway associated with the access point whether the attach request is an initial attachment or a handover from a second network.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: July 17, 2012
    Assignee: Futurewei Technologies, Inc.
    Inventor: Hanan Ahmed
  • Multi-protocol label switching multi-topology support
    Patent number: 8223669
    Abstract: A network component comprising at least one processor configured to implement a method comprising receiving a packet, determining whether the packet comprises a topology label, and adding the topology label to the packet if the packet does not comprise the topology label. Included is a method comprising routing a plurality of packets corresponding to a plurality of forwarding equivalence classes (FECs) over a plurality of network topologies using a topology label and plurality of forwarding labels for each network topology. Also included is a network comprising a plurality of nodes in communication with each other and having a plurality of network topologies, wherein at least some of the nodes are configured to route data packets for a plurality of FECs along a path in each network topology using a topology label corresponding to each network topology and an inner label corresponding to each FEC.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: July 17, 2012
    Assignee: Futurewei Technologies, Inc.
    Inventors: Huaimo Chen, Qianglin Quintin Zhao, Raveendra Torvi, Hua Autumn Liu
  • System and Method for Single Radio Handovers
    Publication number: 20120177003
    Abstract: A system and method for single radio handovers are provided. A method for controller operations includes receiving a first message from a mobile node. The first message is transported in a first network. The method also includes transforming the first message into a second message. The second message is to be transported in a second network. The method further includes sending the second message to a point of access in the second network. The point of access is a target point of access for the mobile node in a single radio handover.
    Type: Application
    Filed: May 10, 2011
    Publication date: July 12, 2012
    Applicant: FutureWei Technologies, Inc.
    Inventors: Hinghung Anthony Chan, Jung Hoon Jee, Chang Min Park, Yoon Young An