Patents Issued in January 28, 2014
  • Patent number: 8638753
    Abstract: The technology pertains to wireless telecommunications systems in which a quality of service is handled for a service provided to a user equipment when the user equipment transitions from being served by a source network to being served by a target network. The quality of service is handled even if the source and the target networks implement proprietary QCIs. In general, a source QCI, which may be proprietary to the source network, is remapped to a predetermined QCI that identifies a set of predetermined QCI characteristics whose values are similar to the source QCI characteristics identified by the source QCI. The predetermined QCI and the set of predetermined QCI characteristics are used by the target network to provide the service to the user equipment after the transition.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: January 28, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Fredrik Persson, Paul Stjernholm
  • Patent number: 8638754
    Abstract: A method of performing hand-over in a personal basic service set (PBSS) including a plurality of stations and one coordinator is provided. An association request frame comprising PCP capability information, and requesting to associate to the PBSS, is received from each of the stations. The PCP capability information comprises information regarding at least one of whether each of the stations supports a power source capability of continuous power supply, whether each of the stations supports a channel time allocation function, and whether each of the stations supports a network clustering function. An association response frame, indicating whether the association request received from each of the stations is approved, is transmitted to each of the stations, and a priority to be a coordinator of the stations is determined based on the PCP capability information. Hand-over is performed with one of the stations according to the determined priority.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: January 28, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyuk-choon Kwon, Hae-young Jun, Ho-dong Kim, Dong-seek Park, Soo-yeon Jung
  • Patent number: 8638755
    Abstract: A handover of a wireless communication device is performed between a first wireless band and a second wireless band when a detected feature occurs within a content stream being communicated with the wireless communication device.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: January 28, 2014
    Assignee: AT&T Intellectual Property I, LP
    Inventor: Donald J. Bowen
  • Patent number: 8638756
    Abstract: Disclosed is a portable internet system, and more particularly, to a method of supporting fast ranging upon handover. The method comprises calculating an action time based on a time when a handover confirmation message is received from a serving Radio Access Station (RAS), in a target RAS; and transmitting a fast ranging information message to a mobile station on the basis of the action time.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: January 28, 2014
    Assignee: Intellectual Discovery Co., Ltd.
    Inventors: Jin-soo Park, Shinha Kang, Dohak Lee, Bongman Kim
  • Patent number: 8638757
    Abstract: The present invention relates to a broadband wireless access system, and more particularly, to a method for efficiently acquiring system information on a target base station during a hand-over, and to an apparatus for carrying out the method. One method for enabling a mobile station to update system information on a target base station during a hand-over, according to one embodiment of the present invention, comprises the steps of: receiving, from a serving base station, a broadcast message containing system information on at least one neighbor base station including the target base station, and containing first change count information for indicating whether or not to update the system information; and receiving, from the serving base station, second change count information for indicating whether or not to update the system information currently possessed by the serving base station.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: January 28, 2014
    Assignee: LG Electronics Inc.
    Inventors: In Uk Jung, Yong Ho Kim, Ki Seon Ryu, Hee Jeong Cho
  • Patent number: 8638758
    Abstract: Embodiments described herein relate to providing variable rate broadcast services with soft handoff in wireless communications. In an embodiment, a plurality of access points (e.g., servicing various cells in a broadcast area) may transmit a broadcast content in accordance with a rate set. The rate set may include a plurality of distinct data rates each associated with a transmission format, configured to allow the broadcast packets transmitted by the access points to be incrementally combined (e.g., on a per-slot basis at a subscribing AT). The data rates and corresponding transmission formats in the rate set may be selected in relation to the supportable data rates of the cells in the broadcast area, as well as the requirements for supporting soft handoff in these cells.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: January 28, 2014
    Assignee: QUALCOMM Incorporated
    Inventor: Peter J. Black
  • Patent number: 8638759
    Abstract: Systems and methodologies are described that facilitate selecting and/or reselecting one or more access points, related cells, or carriers based at least in part on calculating an energy efficiency related to the access points. In particular, the energy efficiency can be based at least in part on an estimated pathloss and/or a level of interference related to communicating with the access points. Moreover, load parameters related to the access point can be received and evaluated in selecting and/or reselecting the access point. Thus, access points can be selected or reselected based on parameters other than forward link transmit power. In addition, pathloss and/or interference levels can be weighed based on access point type to prevent macrocell overloading.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: January 28, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Tingfang Ji, Avneesh Agrawal, Aamod Khandekar, Alexei Gorokhov
  • Patent number: 8638760
    Abstract: Techniques to dynamically manage wireless connections are described. For example, a mobile computing device may comprise a connection management module to dynamically select one of a plurality of switching technologies to initiate a connection with one or more target devices and automatically initiate the connection with the one or more target devices using the dynamically selected switching technology. Other embodiments are described and claimed.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: January 28, 2014
    Assignee: Palm, Inc.
    Inventors: Cherif Jarzra, Wen Zhao
  • Patent number: 8638761
    Abstract: Certain aspects of the present disclosure relate to systems, devices, and methods for communicating over a plurality of tones and spatial streams. Modulation symbols may be mapped to tones and spatial streams so as to increase frequency and/or spatial diversity without substantially increasing latency. For certain aspects, this interleaving approach may be performed on low-density parity-check (LDPC) codewords.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: January 28, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Mohammad Hossein Taghavi Nasrabadi, Vincent Knowles Jones, Didier Johannes Richard Van Nee, Geert Arnout Awater
  • Patent number: 8638762
    Abstract: A technique for maintaining network integrity is disclosed. A system according to the technique may include a wired network, a switch, and a wireless access point. The switch can be coupled to the wired network and the wireless access point can be coupled to the switch. The system may further include a forwarding database that stores a mac address for a plurality of devices seen by the switch on the wired network. A method according to the technique may involve detecting identifying information of a device by a wireless access point. The identifying information can be compared with the mac addresses in a forwarding database. If the device is unknown, the unknown device can be classified as rogue and countermeasures can be taken against the rogue device.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: January 28, 2014
    Assignee: Trapeze Networks, Inc.
    Inventor: Manish Tiwari
  • Patent number: 8638763
    Abstract: A system and method for crediting an account of a network access node includes receiving a data signal at a network access node, forwarding the data signal wirelessly to a network user node, and providing account crediting information to an accounting system. The account crediting information represents a credit to be recorded for an account associated with the network access node.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: January 28, 2014
    Assignee: Palm, Inc.
    Inventors: Kenneth D. Comstock, Yoon K. Wong, Jason L. Hertzberg, Steven C. Lemke
  • Patent number: 8638764
    Abstract: A mobile telecommunications architecture is disclosed. A downlink mobile telecommunications signaling message is received via a first communication interface associated with a single shared network controller connection to a mobile switching center (MSC) server. The downlink mobile telecommunications signaling message is mapped to one of a plurality of small scale base stations each of which is configured to perform at least some network controller functions.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: January 28, 2014
    Assignee: Broadcom Corporation
    Inventors: Yan Zhang, Ahmed Tariq
  • Patent number: 8638765
    Abstract: A system and method are provided for distributing wireless network access parameters in a multi-mode communications user terminal (UT). The method includes: establishing a link between a UT and a first communications network (i.e., a cellular network); accessing a parameters server via the first network; downloading access parameters for a wireless, second communications network (i.e., a Wireless Local Area Network); and, using the downloaded access parameters to establish a wireless link between the UT and the second communications network. The downloaded access parameters may include information such as a security key, Service Set IDentifier (SSID), traffic channel allocation, and optimization parameters including transmit power, quality of service (QoS) settings, and operational mode. Alternately, the database may cross-reference UT ID to parameters such as QoS, IP address, gateway information, subnet mask, Domain Name Server (DNS) information, or geographical location.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: January 28, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Rajat Prakash, Nikhil Jain
  • Patent number: 8638766
    Abstract: The embodiments of the present invention relate to an electronic device and a method of controlling the electronic device. When a mobile terminal enters into or comes out of a network environment including a plurality of electronic devices that may communicate with each other, the electronic device and the method of controlling the electronic device may play contents in association with such an event.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: January 28, 2014
    Assignee: LG Electronics Inc.
    Inventors: Beomseok Cho, Seongsoo Sim, Hwangoo Park
  • Patent number: 8638767
    Abstract: The transmission range of a network communication device can be extended by enabling transition between legacy and non-legacy communication protocols. A communication device can receive a packet in a legacy packet format from a host device via a legacy network interface. In response to determining that the packet received via the legacy network interface is to be transmitted using one of a plurality of non-legacy communication protocols, a processing path within the communication device in accordance with which to process the packet for transmission using the non-legacy communication protocol is determined. The packet in the legacy packet format is reformatted to yield a target packet in a non-legacy packet format based, at least in part, on the non-legacy communication protocol. The target packet is provided to the destination network device in accordance with the non-legacy communication protocol.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: January 28, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Paul J. Husted, Manev Luthra, Seung Baek Yi
  • Patent number: 8638768
    Abstract: A signal encoding method and device and a method for encoding a joint feedback signal are provided. The signal encoding method includes the following steps. When two carriers are configured with multiple-input and multiple-output (MIMO), Hybrid Automatic Repeat reQuest-ACKnowledgement (HARQ-ACK) signals of the two carriers are combined into a joint feedback signal. The joint feedback signal is mapped into a codeword according to predetermined mapping relationship between signals and codewords. Therefore, through the method for combining and encoding feedback signals of two carriers for transmission on a code channel in a dual cell (DC)-MIMO mode, bit error ratio (BER) and detection error cost are decreased, power overhead is saved, and a cubic metric (CM) value of the system is not affected, thereby enhancing the performance of the system.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: January 28, 2014
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Shuju Fan, Jing Li, Xueli Ma, Zongjie Wang
  • Patent number: 8638769
    Abstract: Method and apparatus for enabling a wireless terminal to communicate the dual-mode capabilities and reporting the interworking capabilities of the two networks with which the wireless terminal have the added capability of obtaining services from either one of the interworking networks.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: January 28, 2014
    Assignee: InterDigital Technology Corporation
    Inventors: Debashish Purkayastha, Kamel M. Shaheen
  • Patent number: 8638770
    Abstract: A network device includes a first communication module and a second communication module. The first communication module communicates with a first device using a first wireless communication standard. The first communication module receives data from the first device during a first time period and transmits data to the first device during a second time period. The second communication module communicates with a second device using a second wireless communication standard. The second communication module receives a block of packets from the second device during the first time period. The second communication module transmits an acknowledgement to the second device during the second time period when the block of the packets is received.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: January 28, 2014
    Assignee: Marvell World Trade Ltd
    Inventors: Raja Banerjea, Harish Ramamurthy
  • Patent number: 8638771
    Abstract: Techniques for transmitting data in a manner to support multi-user scheduling, multiple-input multiple-output (MIMO) transmission, and interference cancellation are described. A base station assigns multiple time segments of a transmission time interval (TTI) to at least one terminal, maps data for each terminal to at least one time segment assigned to the terminal, and spreads the data in each time segment with at least one channelization code used in the TTI. A terminal receives an assignment of at least one time segment from among multiple time segments of the TTI, obtains input samples for the at least one time segment, and despreads the input samples with the at least one channelization code used in the TTI.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: January 28, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Ivan Jesus Fernandez-Corbaton, Josef J. Blanz, Wolfgang Granzow
  • Patent number: 8638772
    Abstract: A method for granting a contention-free transmission opportunity in a wireless LAN system using a combined channel comprised of a plurality of subchannels, and a station supporting the method are provided. The method for granting transmission opportunity includes: transmitting a transmission opportunity granting frame granting a transmission opportunity of a plurality of target stations; and receiving a frame from each of the plurality of target stations which have acquired a transmission opportunity upon receiving the transmission opportunity granting frame. The station supports granting of a transmission opportunity by the foregoing method.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: January 28, 2014
    Assignee: LG Electronics Inc.
    Inventor: Yong Ho Seok
  • Patent number: 8638773
    Abstract: Certain embodiments of the present disclosure propose methods for supporting multicarrier in a radio link control (RLC) communication layer. The proposed methods reduce the processing required when scheduling information for each carrier becomes available by generating protocol data units (PDUs) in advance, and storing the PDUs in buffers associated with each carrier.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: January 28, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Sai Yiu Duncan Ho, Rajat Prakash, Parag A. Agashe, Fatih Ulupinar, Jelena M. Damnjanovic
  • Patent number: 8638774
    Abstract: A base station for use in a mobile communications network includes a frequency synthesizer for generating signals at desired frequencies and a packet data interface for transmitting and receiving packet data signals over a wide area network. The basestation is configured to determine an elapsed time since it last synchronized the frequency synthesizer to a master device. The basestation is also configured to request synchronization packet data signals from the master device when the elapsed time exceeds a predetermined holdover period.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: January 28, 2014
    Assignee: Ubiquisys Limited
    Inventor: Edward Hatala
  • Patent number: 8638775
    Abstract: Aspects of a method and system for sleep mode signaling for a multi-standard system with Bluetooth are provided. In this regard, a first communication system that communicates utilizing TDM may generate a synchronization signal that is communicatively coupled to a second communication system that communicates utilizing TDM. The first communication system may determine one or more timeslots during which it may be inactive. The first communication system may control, based on the determination, an amount of time that the synchronization signal is in one or more states. The second communication system may receive the synchronization signal from the first communication system. The second communication system may determine timeslots during which the first communication system may be inactive based on an amount of time that the synchronization signal is in one or more states. The second communication system may transmit and/or receive at times that are scheduled based on the determination.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: January 28, 2014
    Assignee: Broadcom Corporation
    Inventor: Steven Hall
  • Patent number: 8638776
    Abstract: A frame generation device has a frame generation section that generates a frame including synchronization information for achieving synchronization with a reception device from among a group including one or more reception devices each of which receives information within the frame, address information indicating an address within the frame for transmitting data, and data transmitted to the reception device included in the group. A group-basis distribution data presence/absence information generation section generates group-basis distribution data presence/absence information indicating whether or not the transmitted data is included in the frame. A synchronization information generation section generates synchronization information including the group-basis distribution data presence/absence information. The frame generation section generates the frame such that the group-basis distribution data presence/absence information is allocated prior to the address information.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: January 28, 2014
    Assignee: OTSL Inc.
    Inventors: Yoshimasa Kimura, Fumio Suzuki, Koichi Moriya
  • Patent number: 8638777
    Abstract: A method for performing ranging is disclosed. The method for performing ranging in a wireless communication system which simultaneously supports a legacy system and a new system includes a method for additionally allocating a ranging channel to a zone other than a legacy zone and a method for re-using a legacy ranging channel within the legacy zone. When the legacy ranging channel is re-used, ranging codes may be shared by a legacy mobile station and a new system mobile station or may be separated on a ranging code domain. Limited radio resources can be effectively employed by re-using the legacy ranging channel.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: January 28, 2014
    Assignee: LG Electronics Inc.
    Inventors: Kyu Jin Park, Jae Hoon Chung, Han Gyu Cho, Eun Jong Lee, Doo Hyun Sung
  • Patent number: 8638778
    Abstract: A method and apparatus to provide hop-by-hop tracking for a communication network is described. In one embodiment, a router verifies that a next downstream router supports tracking and in response, adds a tracking indicator and a timestamp to the data packet. An end router provides a compilation of all the timestamps back to the originating router.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: January 28, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Kwok Keung Lee, Hsiang Ann Chen, Jason Xiaoguang Chen, Rakesh Kumar
  • Patent number: 8638779
    Abstract: Methods and apparatus are provided for: obtaining information at an administrative entity concerning one or more voice-over-Internet (VOI) calls gathered at one or more session controllers operatively coupled between one or more packet switched networks and one or more public switched telephone networks; analyzing the information to determine whether any of the calls are inactive; and sending at least one command from the administrative entity to the one or more session controllers that causes the session controllers to drop any VOIP calls that are determined to be inactive.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: January 28, 2014
    Assignee: ITXC IP Holdings SARL
    Inventor: James Karanassos
  • Patent number: 8638780
    Abstract: A system and method for obtaining an internet address associated with a telephone number is disclosed. In an embodiment of the present invention, a wireless carrier network includes a subscriber database and an ENUM gateway. The ENUM gateway receives an ENUM query related to a subscriber of the wireless carrier from a third party, consults the subscriber database in response to the received ENUM query, and provides an ENUM response to the ENUM query to the third party after consulting the subscriber database.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: January 28, 2014
    Assignee: Nextel Communications Inc.
    Inventor: Qiang Zhang
  • Patent number: 8638781
    Abstract: A method and system for preserving session state in telephony communication including initializing a communication session of telephony communication between a telephony device and an application server; routing the telephony communication through a call router; storing session state for the communication session of the telephony device and the application server; and transmitting the stored session state in communication between the application server and the call router.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: January 28, 2014
    Assignee: Twilio, Inc.
    Inventors: Jeffrey Lawson, John Wolthuis, Evan Cooke
  • Patent number: 8638782
    Abstract: A method, server and terminal for providing a Voice Call Continuity (VCC) service, are discussed. According to an embodiment, the terminal includes a storage unit to store operator policy information and user preference information, the user preference information including domain selection information specifying a user-preferred domain to be used when originating the outgoing call from the terminal, the operator policy information including domain selection information specifying a network-preferred domain to be used when originating the outgoing call from the terminal; and a controller to perform a domain selection for the outgoing call based on the user preference information or the operator policy information.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: January 28, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jae-Seung Song, Kyung-Ae Yoon, Mi-Seon Ra, Hyun-Sook Kim, Patrice Hede
  • Patent number: 8638783
    Abstract: In one embodiment, a converged protocol stack can be used to unify communications from a first communication protocol to a second communication protocol to provide for data transfer across a physical interconnect. This stack can be incorporated in an apparatus that includes a protocol stack for a first communication protocol including transaction and link layers, and a physical (PHY) unit coupled to the protocol stack to provide communication between the apparatus and a device coupled to the apparatus via a physical link. This PHY unit may include a physical unit circuit according to the second communication protocol. Other embodiments are described and claimed.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: January 28, 2014
    Assignee: Intel Corporation
    Inventors: Mahesh Wagh, David J. Harriman
  • Patent number: 8638784
    Abstract: A network switch including a first port, a forwarding module, and a queue controller. The first port is configured to receive i) a first frame of data transmitted to the network switch over a first communication channel, and ii) store the first frame of data in a memory. The forwarding module is configured to assign the first frame of data to a second port for transmission from the network switch over a second communication channel. The queue controller is configured to store a first count of a number of buffers of the memory used by the first port. The queue controller is configured to increment the first count i) based on the number of the buffers used to store at least a portion of the first frame of data, or ii) each time one of the buffers is enqueued for at least a portion of the first frame of data.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: January 28, 2014
    Assignee: Marvell International Ltd.
    Inventor: Hugh Walsh
  • Patent number: 8638785
    Abstract: Method for transmission of data packets by a first station, the packets being intended for a destination node belonging to a network comprising a second station, said packets being transmitted by said first station to said destination node via said second station. In order to simplify the transmission, the method comprises: a routing of a set of at least one of the packets to the second station, a classification associated with the second station, the classification assigning a connection between the first station and the second station to the set of at least one of the packets, a transmission step of the set on the assigned connection.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: January 28, 2014
    Assignee: Thomson Licensing
    Inventors: Ludovic Jeanne, Patrick Fontaine, Charline Guguen
  • Patent number: 8638786
    Abstract: Embodiments herein control a wind turbine in a wind power plant where the wind turbine includes a wind turbine controller and at least one connected wind turbine component. Upon receiving a packet containing a “write/read” instruction, the wind turbine controller effectuates a write instruction by changing a set point associated with an attribute of a component in the wind turbine. The controller retrieves information data resulting from performing the write instruction from the component and transmits the information data to a central controller. The invention performs a fast and simple control loop by means of transmitting both the write and the read instruction within one single data packet.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: January 28, 2014
    Assignee: Vestas Wind Systems A/S
    Inventor: Bo Lovmand
  • Patent number: 8638787
    Abstract: In one embodiment, a particular multicast-enabled device on a LAN may determine that it is to send a Join message to an upstream multicast-enabled device that is configured to source multicast data into the LAN. As such, the particular device may transmit a Join message to the upstream device, where the Join message may have a Hello Request indication when there are no downstream multicast neighbors for the upstream device in the LAN, or may not have the Hello Request indication if there is at least one downstream multicast neighbor for the upstream device. Specifically, the Hello Request requests that the upstream device transmit Hello messages onto the LAN. Multicast-enabled devices in the LAN may thus transmit Hello messages in response to receiving a Join message having a Hello Request directed to that particular device, that is, transmitting the Hello messages so long as there is interest in receiving them.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: January 28, 2014
    Assignee: Cisco Technology, Inc.
    Inventor: IJsbrand Wijnands
  • Patent number: 8638788
    Abstract: A router receives a leave message from a host on a subscriber circuit. The leave message indicates a request to stop receiving a multicast stream that is associated with a group object. The interface between the router and network elements including, but not limited to, a remote multicast replication interface. A group specific query is then sent on the subscriber circuit, and is directed to hosts on the subscriber circuit and regards only the multicast group of the received request. Next the group object association with the subscriber circuit is removed from the record at the router if, in response to the group specific query, no host of the subscriber circuit reports receiving the traffic stream corresponding to the multicast group identified in the leave message.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: January 28, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventor: Kunal R. Shah
  • Patent number: 8638789
    Abstract: An OpenFlow controller is provided to control network devices provided in a network to transmit a multicast data packet. The OpenFlow controller may intercept and examine an IGMP report packet send by one or more hosts to determine the hosts that are interested in receiving data sent by the host. The OpenFlow controller may send the IGMP report packet directly to a multicast-enabled WAN-edge router. Other network devices such as switches, access routers and intermediary routers that may be present in the network architecture do not perform any multicast control plane activity and hence, do not have to be multicast-enabled. According to various embodiments, the WAN-edge router is the only multicast enabled element of the network. The remaining elements are not required to be multicast-enabled because their responsibilities are performed by the OpenFlow controller.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: January 28, 2014
    Assignee: Google Inc.
    Inventor: Ayaskant Pani
  • Patent number: 8638790
    Abstract: Systems and methodologies are described that facilitate enhanced data service functionality for data services operating in a multi-processor computing environment. As described herein, respective processors and/or other components can be utilized to form a Smart Peripheral Subsystem (SPS). As further described herein, the SPS can operate in association with a modem processor and an application processor at a mobile computing device in order to reduce loading at the application processor and improve memory usage efficiency. In the case of a mobile computing device sharing a network connection with a tethered computing device, the SPS can couple a modem interface associated with the mobile computing device and an interface through which the disparate computing device is tethered to the mobile computing device such that operations such as Layer 2 (L2) framing and/or de-framing, Network Address Translation (NAT), or the like can be offloaded to the SPS under various circumstances.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: January 28, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Idreas Mir, Jeffrey A. Dyck, Gerald J. Chambers, Samson Jim, Steven J. Doerfler, Marcello Lioy, Uppinder S. Babbar
  • Patent number: 8638791
    Abstract: A device may include a control module configured to distribute sets of routing entries to line cards, each of the sets including a portion of a master table for looking up routes based on network addresses. In addition, the device may include a first one of the line cards configured to receive one of the sets of routing entries, store the received set of routing entries in a local table, receive a packet from a network, obtain a routing entry using the local table based on an address associated with the packet, and send the obtained packet to a second one of the line cards, the second line card associated with the routing entry. Further, the device may include the second line card configured to forward the packet toward the address in the network.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: January 28, 2014
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Dante J. Pacella, Norman Richard Solis, Harold Jason Schiller
  • Patent number: 8638792
    Abstract: A method and system for compiling a representation of a source circuit including one or more source subchannels associated with portions of source logic driven by a plurality of clock domains are described. Each source subchannel may generate packets carrying signal data from one of the portions of the source logic. A representation of a destination circuit may be compiled to include one or more destination subchannels associated with portions of destination logic replicating the source logic. Each destination subchannel may forward the signal data via the packets to one of the portions of the destination logic. A switching logic may be configured to map the source subchannels to the destination subchannels as virtual channels to forward the packets from the source subchannels to the destination subchannels. A single queue may be configured to couple with the switching logic to record packets from the source subchannels into a packet stream for a delay period to distribute to the destination subchannels.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: January 28, 2014
    Assignee: Synopsys, Inc.
    Inventor: Robert Erickson
  • Patent number: 8638793
    Abstract: An apparatus includes a comparator engine having a comparison logic unit to compare at least a portion of a header of a data unit to a header pattern, where the header pattern corresponds to at least a portion of a header of a previously analyzed data unit, and a match indication generator to generate a match indication if the at least a portion of the header matches the header pattern; and a result generator to cause the data unit to be processed based on the previously analyzed data unit if the match indication is generated.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: January 28, 2014
    Assignee: Marvell Israle (M.I.S.L) Ltd.
    Inventors: Shaul Ben-Mayor, Erez Izenberg
  • Patent number: 8638794
    Abstract: Method and system for routing traffic across multiple network interfaces with use of VPN traffic selector as part of decision making, for example, in the context of a mobile communication network. A packet data unit (PDU) is generated in association with an application that can be selectively activated on a mobile device and carries a destination Internet protocol (IP) address representing a server that supports the application. A broker associated with the mobile device retrieves information relating to traffic selectors and determines whether the PDU is associated with an operator application or a non-operator application based on the destination IP address and the information relating to traffic selectors. The broker routes the PDU to one of the multiple network interfaces based on whether the PDU is from an operator application traffic and local policies.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: January 28, 2014
    Assignee: Cellco Partnership
    Inventors: Robert Martin Ephraim, Rohit Satish Kalbag, Ben-Ren Chen
  • Patent number: 8638795
    Abstract: The present invention is directed towards systems and methods for providing classification of an encrypted network packet for performing QoS and acceleration techniques. Encrypted packets may be classified by a first classifier at a first portion of a network stack of a device as corresponding to a first predetermined application, and an application identifier may be included with the packet. In some embodiments, the packets may be decrypted in an order dependent on a first classification of the encrypted network packet. After decryption, packets may be reclassified as corresponding to a second predetermined application by a second classifier operating at a second portion of a network stack of the device above the first portion. Thus, network performance may be enhanced and optimized by providing QoS and acceleration engines with packet- or data-specific information corresponding to the application, while avoiding inefficiencies due to a lack of prioritization of decryption.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: January 28, 2014
    Assignee: Citrix Systems, Inc.
    Inventors: Steve Jackowski, Seth Keith, Mike Ovsiannikov, Daljit Singh
  • Patent number: 8638796
    Abstract: A method and network device for re-ordering segments of a segmented data stream. The method includes receiving at least two segments of a segmented data stream. A descriptor for each of the at least two segments is obtained, and the at least two segments are re-ordered to generate re-ordered segments, where the re-ordered segments are in an original order. A set of re-ordered segments are processed to obtain at least one data packet, where at least one descriptor is utilized in the processing of the set of re-ordered segments.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: January 28, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Yie-Fong Dan, Edmund Au, Raymond Ng, Yanyan Cui
  • Patent number: 8638797
    Abstract: Techniques for ordered and duplicate-free delivery of wireless data frames are provided. A source address, a destination address, and a message sequence number are acquired from a wireless data frame. The message sequence number is compared against a last-received message sequence number, and a last-delivered message sequence number. The destination address is also compared to a current address. In response to the compares, a decision is made to forward the wireless data frame to the destination address, discard the wireless frame as a duplicate wireless data frame, queue the wireless data frame, or release the wireless data frame to a next protocol layer.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: January 28, 2014
    Assignee: Intel Corporation
    Inventors: Samer Taha, Liuyang Lily Yang
  • Patent number: 8638798
    Abstract: A method and apparatus to transfer data cells having an overhead section and a payload section via a communication medium from a transmitter to a receiver. Before transfer of a data cell, the overhead section of the data cell is translated into a shortened overhead section, known both on the transmitter and the receiver sides, and upon reception of the data cell, the shortened overhead section is translated again into the overhead section.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: January 28, 2014
    Assignee: Alcatel Lucent
    Inventor: Frank Cyriel Michel Defoort
  • Patent number: 8638799
    Abstract: A system and method for implementing a VM to identify a data packet for transmission, the data packet including a QoS the data packet is to receive as compared to another QoS that another data packet is to receive. The system and method further includes a SNIC to pull the data packet from the VM based upon the QoS the data packet is to receive. The system and method may also include a link scheduler module to transmit the data packet based upon the QoS the data packet is to receive. The system and method may also include a receiver to receive a management instruction from a network management device, the management instruction to dictate the QoS the data packet is to receive based upon a SLA.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: January 28, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jayaram Mudigonda, Paul T Congdon, Partha Ranganathan
  • Patent number: 8638800
    Abstract: Techniques have been developed to facilitate evaluation of match and hash rule entries in ways that allow an implementation to decouple (i) the order in which match rules are applied to a first subset of packet header fields from (ii) the ordering of a second subset of packet header fields over which a non-commutative hash is computed. In short, the set and ordering of fields evaluated in accordance with a precedence order of rules need not correspond to the set or ordering of fields over which a hash is computed in a communications controller.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: January 28, 2014
    Assignee: Freescale Semiconductor, Inc.
    Inventors: David Kramer, Kun Xu
  • Patent number: 8638801
    Abstract: An optical packet switching system includes: an optical packet switching device configured to route and output an input optical packet signal; an optical amplifier device provided in a stage subsequent to the optical packet switching device; and a dummy packet insertion device configured to insert a dummy packet in an optical packet signal prior to input to the optical amplifier device. A dummy packet includes a flag indicating that the packet is a dummy packet.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: January 28, 2014
    Assignee: Fujitsu Telecom Networks Limited
    Inventor: Reiko Sato
  • Patent number: 8638802
    Abstract: Methods and systems are provided for steering network packets. According to one embodiment, a dynamically configurable steering table is stored within a memory of each network interface of a networking routing/switching device. The steering table represents a mapping that logically assigns each of the network interfaces to one of multiple packet processing resources of the network routing/switching device. The steering table has contained therein information indicative of a unique identifier/address of the assigned packet processing resource. Responsive to receiving a packet on a network interface, the network interface performs Layer 1 or Layer 2 steering of the received packet to the assigned packet processing resource by retrieving the information indicative of the unique identifier/address of the assigned packet processing resource from the steering table based on a channel identifier associated with the received packet and the received packet is processed by the assigned packet processing resource.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: January 28, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Sachin Desai, Tim Millet, Zahid Hussain, Paul Kim, Louise Yeung, Ken Yeung