Patents Issued in February 8, 2011
  • Patent number: 7885229
    Abstract: A cognitive radio determines a frequency channel of a spectrum, determines from a locally stored association of individual channels to either of at least two categories (e.g., in use and backup, other is a third category) a selected category for the determined frequency channel. From the selected category is determined a time at which to sense the determined frequency channel. The determined frequency channel is then sensed at the determined time and results of the sensing may be transmitted. Timers may be associated with each of the categories and adjusted based on density of cognitive nodes. A timer for the in use category is shortest, a timer for the other category is longest, and a timer for the backup category is between shortest and longest.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: February 8, 2011
    Assignee: Nokia Corporation
    Inventors: Anu Hannele Huttunen, Jari Junell, Juha Hermanni Pihlaja
  • Patent number: 7885230
    Abstract: A method for efficiently scheduling virtual resource blocks to physical resource blocks is disclosed. In a wireless mobile communication system that supports a resource block group (RBG) allocation scheme, when consecutively allocated virtual resource blocks are distributively mapped to physical resource blocks, a gap for the distribution is determined to be a multiple of a square of the number of consecutive physical resource blocks constituting an RBG.
    Type: Grant
    Filed: January 6, 2009
    Date of Patent: February 8, 2011
    Assignee: LG Electronics Inc.
    Inventors: Dong Youn Seo, Byeong Geol Cheon, Bong Hoe Kim, Joon Kui Ahn
  • Patent number: 7885231
    Abstract: A method of communicating information in a wireless mobile communication system is disclosed. More specifically, the method includes a network for establishing handover management modules in a source network and a target network and transmitting a handover request message from the handover management module of the source network to the handover management module of the target network. Furthermore, the network is used for receiving a handover response message from the handover management module of the target network to the handover management module of the source network, wherein the handover response message includes an internet protocol address information and transmitting a handover confirmation message from the handover management module of the source network to a mobile terminal, wherein the handover confirmation message includes the internet protocol address information.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: February 8, 2011
    Assignee: LG Electronics Inc.
    Inventors: Yong-Ho Kim, Yong Won Kwak, Jin Lee
  • Patent number: 7885232
    Abstract: A method of operating a mobile communication terminal for a handover rejection in a portable Internet system and the mobile communication terminal using the same are disclosed. The method includes transmitting a handover request message to a serving base station and receiving a response message corresponding to the handover request message from the serving base station, in which the handover request message requests a handover operation to at least one target base station. The method also includes checking whether the received response message includes contents regarding the handover rejection, extracting at least one of terminal action instruction information and rejection reason information corresponding to the handover rejection from the response message according to a result of the checking step, and executing an action according to the extracted information.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: February 8, 2011
    Assignee: LG Electronics Inc.
    Inventors: Seong Jin Park, Sung Hun Hong, Ki Taek Song
  • Patent number: 7885233
    Abstract: In a network comprising a first subnet comprising a first WLAN associated with a home wireless switch a second subnet comprising a second WLAN associated with a first current wireless switch and a third subnet comprising a third WLAN associated with a second current wireless switch, methods are provided for forwarding a Broadcast/Multicast (BCMC) packet generated by a first wireless client device when the first wireless client device roams from the first subnet to the second subnet and a second wireless device roams from the first subnet to the third subnet. Other methods are provided for forwarding a BCMC packet generated by a wired host to a first wireless client device when the first wireless client device roams from the first subnet to the second subnet and to a second wireless device when the second wireless device roams from the first subnet to the third subnet.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: February 8, 2011
    Assignee: Symbol Technologies, Inc.
    Inventors: Ramakrishnan Nagarajan, Udayan Borkar
  • Patent number: 7885234
    Abstract: A method and system for providing circuit-switched to IP Multimedia Subsystem voice call continuity with a single radio are provided. The exemplary embodiment takes advantage of a standard RANAP signaling procedure called “directed retry” to perform a much better coordination between the change in radio mode and the transfer of the media path. With the use of “directed retry”, the transfer of the media path does not begin until the handover procedure is complete, thus significantly reducing the likely amount of media disruption.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: February 8, 2011
    Assignee: Alcatel-Lucent USA Inc.
    Inventor: Richard P. Ejzak
  • Patent number: 7885235
    Abstract: Since OFDM (Orthogonal Frequency Division Multiplexing), which is a downlink access scheme used for an LTE (Long Term Evolution) communication system, is weak at interference, it is preferable that the number of base stations for transmitting the same E-MBMS (Evolved Multimedia Broadcast Multicast Service) data be not excessive. Thus, the mobile terminal performs: processing of obtaining measurement quality values by measuring reception quality of each base station; processing of deciding on whether the measurement quality value of a serving base station exceeds a certain receiving level; processing of adding measurement quality values of other base stations to the measurement quality value of the serving base station until the sum exceeds the certain receiving level; and processing of notifying the serving base station of the serving base station and other base stations as candidates for an active set for E-MBMS.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: February 8, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Mitsuru Mochizuki, Miho Maeda, Yasushi Iwane, Noriyuki Fukui, Tetsuya Mishuku, Michiaki Takano, Ryoichi Fujie, Shigenori Tani, Akira Okubo, Keisuke Ozaki
  • Patent number: 7885236
    Abstract: A method of performing a handover with at least one of a homogeneous and heterogeneous network is disclosed. More specifically, the method comprises establishing a heterogeneous network handover module for converging information from the at least one network interface module associated with the at least one of a homogeneous and heterogeneous network into a unified presentation and receiving a message for powering on at least one network interface module in a mobile terminal from the heterogeneous network handover module. The method further comprises performing a power on operation for activating the at least one network interface module and transmitting a confirmation message for indicating a power on operation status to the heterogeneous network handover module.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: February 8, 2011
    Assignee: LG Electronics Inc.
    Inventors: Yong-Ho Kim, Jin Lee, Yong-Won Kwak
  • Patent number: 7885237
    Abstract: A wireless terminal is operable to receive a Wideband Code Division Multiple Access (WCDMA) signal from a base station and includes clock circuitry, a wireless interface, and a Primary Synchronization (PSYNC) module. The clock circuitry generates a wireless terminal clock using a wireless terminal oscillator. The wireless interface receives the WCDMA signal, which is produced by the base station using a base station clock that is produced using a base station oscillator that is more accurate than the wireless terminal oscillator. The PSYNC module includes a plurality of PSYNC correlation branches. Each PSYNC correlation branch phase rotates the WCDMA signal based upon a respective frequency offset, correlates the phase rotated WCDMA signal with a Primary Synchronization Channel (PSCH) code over a plurality of sampling positions, and produces PSYNC correlation energies based upon the correlations for each of the plurality of sampling positions.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: February 8, 2011
    Assignee: Broadcom Corporation
    Inventors: Mark David Hahm, Wei Luo, Hendrik Johannes Conroy
  • Patent number: 7885238
    Abstract: A first transceiver determines whether a second transceiver has properly decoded at least one of a received data packet and control information associated with the corresponding data packet based on an estimated probability. The estimated probability is indicative of whether the second transceiver has properly decoded at least one of the data packet and associated control information.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: February 8, 2011
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Francis Dominique, Hongwei Kong, Ashok Armen Tikku
  • Patent number: 7885239
    Abstract: An improved mechanism for managing allocation of air interface timeslots for transmission of data to access terminals. When an access terminal requests an access network to transmit data to the access terminal in a first sector, the access terminal will identify within its request a second sector that the access network can optionally use instead. The access network will then determine whether a threshold number of upcoming timeslots in the first sector are already scheduled to carry data to other access terminals and whether at least one of those timeslots is available for use in the second sector. If so, the access network will then responsively transmit the data to the access terminal in the at least one timeslot on the second sector. Advantageously, this process can help to increase sector throughput.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: February 8, 2011
    Assignee: Sprint Spectrum L.P.
    Inventors: Siddarth S. Oroskar, Sachin R. Vargantwar, Manoj Shetty, Ashvini Ganesh G. Canjeevaram
  • Patent number: 7885240
    Abstract: A hybrid TDMA-CSMA MAC protocol is provided for allocating time slots within a frame having a structure in which transmission time is divided into a first number of actual TDMA time slots and a second number of “virtual” CSMA time slots. Each of the nodes in a multi-hop network can transmit a Highest Slot Number (HSN) field. Each time one of the Hello messages is received from a neighbor node, a given node can calculate variables based on the HSN field. The given node can use these variables to calculate a ratio of the first number to the second number. This ratio can be dynamically adjusted depending upon the traffic conditions observed by nodes within the multi-hop ad hoc network at any particular time to thereby change the relative percentages of the frame which are allocated for a TDMA portion and a CSMA portion of the frame.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: February 8, 2011
    Assignee: Motorola, Inc.
    Inventors: Avinash Joshi, Manish Shukla, Sr.
  • Patent number: 7885241
    Abstract: LCCH steal receiving is done by a receiving unit which uses TDMA method without overloading to the control processor. A UW detecting unit 10 for detecting a UW by setting a UW expected value for control channel according to a timing signal TM3 from a LCCH timing unit 30, a frame timing unit 20 for outputting a frame timing signal TM1 of the frame according to a UW detecting signal DET, the LCCH timing unit 30 for outputting a timing signal TM3 for the UW detecting unit 10 and a timing signal TM5 for a PLL control unit 40 by counting the timing signal TM1, and the PLL control unit 40 for selecting and outputting a channel setting signal CH for a PLL2 according to the timing signal TM5 are all configured by hardware circuits. By the above configuration, the LCCH steal receiving becomes possible without software operations of the receiving units.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: February 8, 2011
    Assignee: Oki Semiconductor Co., Ltd.
    Inventor: Takanori Hashimoto
  • Patent number: 7885242
    Abstract: A mobile customer service station operating within a wireless multi-hop communication network includes a console on a wheeled chassis. The console carries and houses a number of components which are used in merchandising operations to conclude customer purchase transactions. The items supported externally on the console are a printer for printing purchase receipts, customer credit charge agreements and records of transactions, and a magnetic card reader for reading information from a magnetic stripe of a customer's credit card. In one embodiment, the operation of the printer, credit card reader and the cash drawer is controlled by a multi-function control unit located within an enclosure of the console. The control unit is electrically powered by a self-contained power source which is preferably a deep cycle rechargeable battery. The console also houses a transceiver unit which under the control of the control unit is capable of interactive communication with a premises network.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: February 8, 2011
    Inventors: Ronald L. Mahany, Steven E. Koenck, Alan G. Bunte, Robert C. Meier, Phillip Miller, Julie Ann Miller, legal representative, Roger L. Wolf, George E. Hanson, Ronald E. Luse, Guy J. West, Charles D. Gollnick, Keith K. Cargin, Jr., Steven H. Salvay, Arvin D. Danielson
  • Patent number: 7885243
    Abstract: A design and proof of concept of a new type of WLAN, complete with simulation and results from the simulation has been described. Each AP Node is implemented as a self-contained embedded OS unit, with all algorithms resident in its Operating system. The normal day-to-day functioning of the AP node is based entirely on resident control algorithms. Upgrades are possible through a simple secure communications interface supported by the OS kernel for each AP node.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: February 8, 2011
    Assignee: Mesh Dynamics, Inc.
    Inventors: Francis da Costa, Sriram Dayanandan
  • Patent number: 7885244
    Abstract: A method for communicating in a network including a coordinator node and a set of leaf nodes transmits periodically, from the coordinator node to the set of leaf nodes, a beacon defining a superframe, wherein the supper frame includes an active period and an inactive period, and wherein the active period includes a first contention access period (CAP-1), a first contention free period (CFP-1), a first group acknowledgement (GACK-1), a second CFP-2, a second GACK-2, and a second CAP-2, and wherein each CFP includes a guaranteed time slot (GTS) assigned to each leaf node. Then, each leaf node transmits to the coordinator node only during the GTS assigned to the leaf node during each CFP.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: February 8, 2011
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Ghulam Bhatti, Zafer Sahinoglu
  • Patent number: 7885245
    Abstract: A method and apparatus for enhanced uplink multiplexing are disclosed. A set of combinations of MAC-d flows (and/or logical channels) that are allowed to be multiplexed within a MAC-e PDU is defined for a WTRU. The WTRU MAC-e entity selects a combination among a set of allowed combinations for multiplexing MAC-d flows for each MAC-e PDU. Certain MAC-d flow combinations may be defined that can not be blocked from transmission even when the WTRU is in a transmit power restricted state. The amount of data from each logical channel or corresponding MAC-d flow that can be multiplexed within a MAC-e PDU may be defined to ensure guaranteed data rates. When the WTRU is in a restricted power condition, an indication of the restricted power condition may be passed to the Node-B with the EU transmission.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: February 8, 2011
    Assignee: InterDigital Technology Corporation
    Inventor: Stephen E. Terry
  • Patent number: 7885246
    Abstract: A frequency band is divided into N subchannels. Sub-channels are first allocated for a power line communication system having a higher priority, such as public communication or the like. Sub-channels for a power line communication system having a relatively low priority, such as in-home communication or the like, are allocated from free subchannels. In this case, the subchannels used by the power line communication system having the high priority are limited to a plurality of consecutive subchannels from an upper side or a lower side of the frequency band.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: February 8, 2011
    Assignee: Panasonic Corporation
    Inventors: Go Kuroda, Akio Kurobe, Koji Ikeda, Hisao Koga, Yuji Igata
  • Patent number: 7885247
    Abstract: A method of transmitting feedback information is disclosed. More specifically, a mobile station (MS) receives a Protocol Data Unit (PDU) which includes a Medium Access Channel (MAC) header from a base station (BS). Thereafter, the MS determines from the received MAC header whether an extended subheader group appears after the MAC header, and also identifies a feedback request extended subheader from the extended subheader group. Lastly, the MS transmits the feedback information according to the feedback request extended subheader.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: February 8, 2011
    Assignee: LG Electronics Inc.
    Inventors: Bin Chul Ihm, Jin Young Chun, Yong Suk Jin
  • Patent number: 7885248
    Abstract: Systems and methods for bridging packet flows to bypass call legs and/or tunnels are provided. A tunnel initiator, which can be an access gateway, a foreign agent, and a mobility anchor point, for example, provides a bypass for certain packets that have a destination serviced by the same tunnel initiator. The bridge allows the packets to bypass a backhaul loop and reduces latency and frees bandwidth for other purposes in the network. The bridging can be implemented in a tunnel initiator for mobile to mobile packet flows, mobile to land line packet flows, and land line to mobile packet flows. Route optimization can also be provided in certain embodiments.
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: February 8, 2011
    Assignee: Starent Networks LLC
    Inventors: Matthew H. Harper, Sanil Kumar Puthiyandyil, Rajesh Ramankutty, Shaji E. Radhakrishnan, Kuntal Chowdhury
  • Patent number: 7885249
    Abstract: The present invention relates to a communication system and a communication method for simply and quickly starting communication. A cellular phone 52 is loaded with a non-contact IC card that communicates with a reader/writer of a personal computer 51 using an electromagnetic wave. When the non-contact IC card receives the electromagnetic wave emitted from the reader/writer with the cellular phone 52 placed close to the personal computer 51, the cellular phone 52 notifies the personal computer 51 of a card ID set in the non-contact IC card. When the personal computer 51 acquires Bluetooth device names of the cellular phone 52 and PDA 53 with intra-piconet synchronization established between the cellular phone 52 and the PDA 53, the personal computer 51 identifies the cellular phone 52 as a communication partner based on the Bluetooth device names already notified of as the card ID. The present invention is applicable to an information processing apparatus such as a personal computer and a cellular phone.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: February 8, 2011
    Assignee: Sony Corporation
    Inventors: Takeo Inagaki, Haruo Oba, Taku Sugawara, Junichi Rekimoto, Nobuyuki Matsushita, Yuji Ayatsuka
  • Patent number: 7885250
    Abstract: A method and apparatus for synchronizing timing of Access Points (APs) and/or Synchronization Units (SUs) includes (a) arranging a cable having at least four pairs of twisted wires connected between two or more fixed APs and/or SUs in a network; (b) assigning a first pair of the twisted wires to carry a positive D.C. voltage to at least one AP or SU; (C) assigning a second pair of the twisted wires to carry a negative D.C. voltage to at least one AP or SU; (d) providing to the first and second pairs of rails a series of synchronization pulses generated from a synchronization source and capacitively-coupled to the first and second pairs of twisted wires so as to supply a composite signal; and (e) reconstructing the generated synchronization pulses by detecting pulses on the positive and negative D.C. voltages at a receiving end by at least one AP or SU.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: February 8, 2011
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Tim Whittaker
  • Patent number: 7885251
    Abstract: A network configuration method of a sensor network configured to collect sensed data from a plurality of sensor nodes comprising: arranging linearly a path of respective node so as to enable all sensor nodes except for a sink node and a terminal node to have respectively a predecessor and a successor; and setting the time synchronization of whole network by fixing the each node take its own time synchronization on the basis of an operation section of the predecessor.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: February 8, 2011
    Assignee: Korea Electronics Technology Institute
    Inventors: Jae-Ho Kim, Sang-Shin Lee, Il-Yeup Ahn, Kwang-Ho Won, Seong-Dong Kim
  • Patent number: 7885252
    Abstract: A source IP telephone inputs, from its numeric keypad, a telephone number of a call destination and obtains, from an ENUM server, a NAPTR record of the destination IP telephone based upon the input telephone number of the call destination. By referring to a search table, the source IP telephone retrieves, from the obtained NAPTR record, an available specific number in the ascending order of call rates from the lowest based upon communication services available to the source IP telephone. The source IP telephone transmits a call to the destination IP telephone by using the retrieved specific number.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: February 8, 2011
    Assignee: Panasonic Corporation
    Inventors: Akira Miyajima, Kazuto Kobayashi
  • Patent number: 7885253
    Abstract: An improvement in the design and operation of telecommunications networks is described in which when a caller's telecommunication terminal does not know the address of the called party's telecommunications terminal, the caller's telecommunication terminal contacts one Session Initiation Protocol Proxy server after another until the address of the called party's telecommunications terminal is found. Thereafter, one or more of the Session Initiation Protocol Proxy servers that did not have the address of the called party's telecommunications terminal are populated with that information for future use.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: February 8, 2011
    Assignee: Avaya Inc.
    Inventors: Ezra Raphael Gilbert, Venkat R Gilakattula
  • Patent number: 7885254
    Abstract: Provided is a delay insensitive (DI) data transfer apparatus with low power consumption. The apparatus, includes: N number of encoders configured to receive and encode input request and data signals, where each of the N number of encoders includes: a reference current source circuit configured to generate a current; and a voltage-to-current converter circuit configured to output a current having a level of 0, output the current having the level of I, and output the current having the level of 2I; and N number of decoders configured to recover the current-level signals, where each of the decoders includes: a threshold current source circuit configured to generate first and second threshold currents; an input current mirror circuit configured to differentiate the first and second threshold currents; and a current-to-voltage converter circuit configured to detect the threshold current, recover a voltage input value, and extract data and request signals.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: February 8, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Myeong-Hoon Oh, Seong-Woon Kim, Myung-Joon Kim
  • Patent number: 7885255
    Abstract: A synchronous read channel having a single chip integrated circuit digital portion which provides digital gain control, timing recovery, equalization, digital peak detection, sequence detection, RLL(1,7) encoding and decoding, error-tolerant synchronization and channel quality measurement is disclosed. The integrated circuit accommodates both center sampling and side sampling, and has a high degree of programmability of various pulse shaping and recovery parameters and the ability to provide decoded data using sequence detection or digital peak detection. These characteristics, together with the error-tolerant sync mark detection and the ability to recover data when the sync mark is obliterated, allow a wide variety of retry and recovery strategies to maximize the possibility of data recovery.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: February 8, 2011
    Assignee: Lake Cherokee Hard Drive Technologies, LLC
    Inventors: Richard T. Behrens, Kent D. Anderson, Alan J. Armstrong, Trent Dudley, Bill R. Foland, Neal Glover, Larry D. King
  • Patent number: 7885256
    Abstract: System and method for discovering Storage Area Network (SAN) fabrics and mapping switches to the fabrics. Embodiments may collect switch information from one or more sources and examine the collected switch information to determine interconnections among the switches. From this information, one or more SAN fabrics of which the switches are components may be determined, and the switches mapped to the SAN fabrics of which they are components. Embodiments may use an out-of-band protocol such as SNMP to collect switch information for all switches that can be discovered, either from individual switches or from a central switch management server, and then traverse the switch information to construct a map of how the switches are connected. From the map, one or more SAN fabrics, and which switches are connected in the same fabric(s), may be determined.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: February 8, 2011
    Assignee: Symantec Operating Corporation
    Inventors: Rekha Yenamandra, William Kawakami
  • Patent number: 7885257
    Abstract: A method for processing packets that includes receiving a first packet for a first target by a network interface card (NIC), classifying the first packet, sending the first packet to a first receive ring in the NIC based on the classification of the first packet, sending the first packet to a Network Layer from the first receive ring, sending a first virtual network stack (VNS) Instance ID associated with the first receive ring to the Network Layer, obtaining a first VNS Instance parameter using the first VNS Instance ID, and processing the first packet in the Network Layer using the first VNS Instance parameter to obtain a first network processed packet.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: February 8, 2011
    Assignee: Oracle America, Inc.
    Inventors: Nicolas G. Droux, Erik Nordmark, Sunay Tripathi
  • Patent number: 7885258
    Abstract: Disclosed is a packet switch equipment and a band control method using same. In accordance with one embodiment of the invention, a number of packets are sampled by using a packet sampling function provided by a packet switch chip, and the sampled packets are transmitted to a CPU. By using the transmitted sample packets, the total amount of bandwidth used by a corresponding user is estimated based on the source MAC address or the source IP address. If the estimated value exceeds a predetermined threshold, a bandwidth limitation function is applied to the user that is providing packets that exceed the bandwidth. A number of users can be dynamically recognized even when they are undefined, and a dynamic bandwidth limitation function is performed by tracking the bandwidth used by a corresponding user.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: February 8, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Kyu Joo, Hoon-Jae Kim, Han-Seung Park, Seong-Ha Kim
  • Patent number: 7885259
    Abstract: Disclosed are, inter alia, methods, apparatus, computer-readable media, mechanisms, and means for deterministically determining MPLS labels as functions of addresses of Forwarding Equivalence Classes (FECs), and using these determined labels in the forwarding of packets. By each packet switching device in a network deterministically determining the same MPLS label to use for each FEC, each packet switching device knows what label will be used by the other packet switching devices, without running Label Distribution Protocol (LDP) or another label publishing protocol. Additionally, this knowledge extends to all packet switching devices in a network, not merely neighboring packet switching devices, which allows a packet switching device to specify a stack of labels to define a desired path through the network for explicit path routing and/or fast rerouting of traffic without having to previously establish a tunnel or path using Resource Reservation Protocol (RSVP), for example.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: February 8, 2011
    Assignee: Cisco Technology, Inc.
    Inventor: Clarence Filsfils
  • Patent number: 7885260
    Abstract: Disclosed are, inter alia, methods, apparatus, computer-readable media, mechanisms used in one embodiment configured for, and means for, determining packet forwarding information for packets sent from a protocol offload engine in a packet switching device. The protocol offload engine performs the protocol processing for a protocol application (e.g., BGP) running on a separate control plane processing system, and generates packets to be sent to external devices. The protocol offload engine sends these packets to one of the line cards without using the routing information lookup facility of the control plane processing system, thereby, freeing the control plane processing system to use those processing cycles to perform other tasks.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: February 8, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Arindam Paul, Somala Krishna Reddy, David Delano Ward, Fan Sun, Shyamsundar Nandkishor Maniyar
  • Patent number: 7885261
    Abstract: Packet classification and routing in a data communication network with static routing procedure, wherein the routing is performed without using a routing table. First values for each common address bit of end service points adjacent to a switch as a response to a local subnet mask of the switch are defined. Then the packet flows from the current switch to the adjacent switches are forwarded in response to a value of differentiation bits. Unprocessed packets are forwarded to the main adjacent switch according to the main adjacent switch definition. Unforwarded are processed packets locally as exceptions.
    Type: Grant
    Filed: August 4, 2006
    Date of Patent: February 8, 2011
    Assignee: Nokia Corporation
    Inventors: Elena Balandina, Sergey Balandin
  • Patent number: 7885262
    Abstract: A method for resource admission control process, an Access-Resource and Admission Control Function entity and a Service-based Policy Decision Function entity, wherein the method includes: sending an Admission Request message, which carries the current media stream address information, to an Access-Resource and Admission Control Function entity (A-RACF) in an originating home network from a Service-based Policy Decision Function entity (SPDF) when the SPDF successfully configures an IP Multimedia Subsystem (IMS) connection for a Core Border Gateway Function entity (C-BGF) in the originating home network; and performing a resource admission control process for a corresponding media stream by the A-RACF according to the received Admission Request message. With the method of the present invention, the resource admission control process performed by the A-RACF on the media stream may become meaningful.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: February 8, 2011
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yuepeng Chen, Lingyuan Fan, Fuqing Huang
  • Patent number: 7885263
    Abstract: A method for retransmitting packet data within a wireless communication network includes forming a plurality of subpackets for transmission along a route which was previously used to transmit a missing packet, such that the subpackets collectively include a header portion and a data portion of the missing packet to be retransmitted. The method may further include forming a first subpacket having a header portion and data portion, such that the header portion includes header data associated with a stream and route used to transmit the subpackets, and the data portion includes the header portion of the missing packet and data represented by only some of the data portion of the missing packet. An additional operation forms one or more additional subpackets which each include a header portion having header data associated with the stream and the route, and a data portion that includes only some of the data portion of the missing packet.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: February 8, 2011
    Assignee: LG Electronics Inc.
    Inventors: Li-Hsiang Sun, Young C. Yoon, Suk Woo Lee
  • Patent number: 7885264
    Abstract: An object is to transmit data such that the transmission speed is not reduced even in a transmission route with a comparatively high percentage of packet loss. The transmitter 1 comprises: a data transmission unit 11 which transmits data packets 50 comprising data, a data sequence number indicating the order of the data, and a transmission sequence number indicating the transmission order, and which receives acknowledgement packets 60 comprising the next data sequence number, a bit string indicating the reception status, and a received transmission sequence number; a transmission history memory unit 14 which memorizes the transmission history of the data packets transmitted by the data transmission unit 11; and a retransmission control unit 12 which refers to the transmission history memory unit 14 and specifies the data sequence numbers requiring retransmission based on the received acknowledgement packets 60, and which directs the data transmission unit 11 to retransmit.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: February 8, 2011
    Assignee: Nomura Research Institute Co., Ltd.
    Inventors: Shuji Tateno, Masaya Teraoka, Tetsuji Tamagawa
  • Patent number: 7885265
    Abstract: A transmission control method for uplink user data in a mobile communication system in which a plurality of HARQ processes is applied to the uplink user data, includes: classifying, at the radio network controller, each HARQ process into any of a scheduled transmission process, a non-scheduled transmission process, or a scheduled and non-scheduled transmission process in which either of the scheduled transmission or the non-scheduled transmission is performed; notifying, at the radio network controller, the classification result to the mobile station; and transmitting, at the mobile station, the uplink user data in each HARQ process to the radio base station using the scheduled transmission or the non-scheduled transmission, based on the notified classification result.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: February 8, 2011
    Assignee: NTT DoCoMo, Inc.
    Inventors: Masafumi Usuda, Anil Umesh
  • Patent number: 7885266
    Abstract: A method in a communication of establishing the existence of quality of service preconditions in a communication network, the method comprising the steps of sending (206) an SIP registration request message; and receiving (208) a registration acknowledgement message having a QOS precondition preference indication. Then sending (406) an invite that includes a quality of service precondition message that corresponds with the QoS precondition preference indication of the registration acknowledgement message.
    Type: Grant
    Filed: October 24, 2005
    Date of Patent: February 8, 2011
    Assignee: Motorola Mobility, Inc.
    Inventors: Ganesan Rengaraju, Lawrence A. Willis
  • Patent number: 7885267
    Abstract: There are provided a network system and a network connection device which are adapted for handling a plurality of default routes. The network system includes a plurality of network connection devices, and each network connection device is configured to associate each of one or more default routes with an identifier respectively, enabling setting of one or more default routes by the association.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: February 8, 2011
    Assignee: Fujitsu Limited
    Inventor: Takehiro Nabae
  • Patent number: 7885268
    Abstract: Aspects of a method and system for hash table based routing via table and prefix aggregation are provided. Aspects of the invention may enable aggregating prefixes of varying lengths into a single hash table, wherein each entry in the hash table comprises one or more encoded bits to uniquely identify said prefixes. Additionally, an entry in a hash table may be formatted based on a length of one or more representations of said prefixes in the entry. Aggregating prefixes into a hash table may comprise truncating the prefixes to a common length. In this regard, the encoded bits may indicate the length of the prefixes prior to and/or subsequent to truncation. Additionally, the encoded bits may represent bits removed from the prefix during truncation. In this regard, an encoded bit may represent a possible combination of removed bits and may be asserted when the removed bits are equal to that combination.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: February 8, 2011
    Assignee: Broadcom Corporation
    Inventor: Fong Pong
  • Patent number: 7885269
    Abstract: Networks may be analyzed using Steiner trees. In an example embodiment, a method includes acts of receiving, accepting, creating, and analyzing. Data specifying a network is received. Steiner tree parameters are accepted. A Steiner tree model is created on the data specifying the network responsive to the Steiner tree parameters. The Steiner tree model includes a local representation having a depth constraint for neighborhood vertices. The data specifying the network is analyzed to ascertain a Steiner tree solution based on the Steiner tree model, which includes the local representation, and using a locally-oriented combinatorial algorithm.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: February 8, 2011
    Assignee: Microsoft Corporation
    Inventors: Mohsen Bayati, Christian H. Borgs, Alfredo Braunstein, Jennifer T. Chayes, Riccardo Zecchina
  • Patent number: 7885270
    Abstract: Described are computer-based methods and apparatuses, including computer program products, for statistical multiplexing of compressed video streams. A deadline of a packet of a compressed video stream is computed based on a program clock reference value of the packet. A plurality of packets, which includes the packet, is sorted based on deadlines corresponding to the packets. A next packet from the sorted plurality of packets is selected, the next packet having a corresponding deadline nearest to a system clock time. The next packet is transmitted.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: February 8, 2011
    Assignee: Verlvue, Inc.
    Inventors: Craig Frink, Michael G. Hluchyj, Santosh Krishnan, Christopher Lawler, Robert Ryan
  • Patent number: 7885271
    Abstract: A network configuration that supports latency-equalization (LEQ) routing by effectively “storing” packets on communication links, rather than at end points. A suitable network configuration is found by (i) identifying a candidate pool of routers through which the participating client terminals and application servers can exchange packets intended for LEQ routing and (ii) analyzing the delay inventory corresponding to the network paths connecting the client terminals and application servers, through those routers. Based on the analysis, M routers from the candidate pool are selected to serve as hub nodes. Each participating client terminal is assigned m of these M hub nodes and, thereafter, directs and receives its packets intended for LEQ routing through one of these m hub nodes.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: February 8, 2011
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Li Li, Marina K. Thottan, Minlan Yu
  • Patent number: 7885272
    Abstract: A communication device, such as a telephone or a personal computer, controls one or more remotely controlled devices solely over a signaling path, without necessarily establishing an audio path, thus eliminating the need for the remotely controlled device, or its controller, to include DTMF detection hardware or software or an RTP stack. The communication device can include authentication information, which the communication device uses to authenticate itself to the remotely controlled device, so a user of the communication device can remotely control the device without necessarily entering additional authentication information, such as a passcode. The remotely controlled device (or a controller that controls the device) can register with an element that detects user interactions, such as keypad button presses, with the communication device. The registration can identify one or more patterns of user input.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: February 8, 2011
    Assignee: Dialogic Corporation
    Inventors: Eric W. Burger, Ophir Frieder
  • Patent number: 7885273
    Abstract: A method and a system for converting the service types of the devices connected to a control gateway are provided. The system includes a server, an open platform, a control gateway and devices connected to the control gateway. Wherein, the device possesses device description information and is operated in a first device service type; the control gateway is electrically coupled between the open platform and the device, holds or obtains the device description information of the device and delivers the device description information to the open platform; the server provides a plurality of device service contents. The open platform further according to the device description information obtains the device service content corresponding to the device from the server and registers the device service content in the open platform.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: February 8, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Kuen-Ming Lee, Yu-Shiang Sheng, Wen-Wei Lin, Yung-Shun Huang, Min-Chiao Wang
  • Patent number: 7885274
    Abstract: In one embodiment, a method includes generating by a mobile router a home test message that includes a prefix option field specifying at least one mobile network prefix claimed to be owned by the mobile router. The method also includes outputting the home test message by the mobile router to a correspondent node via a prescribed home agent assigned to the mobile router, for initiation of a reverse routability test between the mobile router and the correspondent node that verifies the mobile router owns the at least one mobile network prefix. In another embodiment, the home agent is configured for forwarding a route optimization message, for example the home test message, to the correspondent node if the home agent determines that the at least one mobile network prefix is owned by the mobile router.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: February 8, 2011
    Assignee: Cisco Technology, Inc.
    Inventor: Pascal Thubert
  • Patent number: 7885275
    Abstract: An integrated messaging system for performing various types of messaging across different types of networks, including integrated user interfaces and administrator interfaces. Embodiments include a communication server that couples among networks of different types, and an interface module that couples to the communication server. The interface module may be hosted on a messaging server of a network. The interface module pulls various user information from the messaging server, including information relevant to at least the network that includes the messaging server. A cache couples to the communication server and to the interface module to hold information from the communication server and/or the user information pulled from messaging server. The interface module directs a message from the messaging server and/or the cache to at least one device on the networks using the user information.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: February 8, 2011
    Assignee: Avaya Inc.
    Inventors: Heine Frifeldt, David Forney, Anthony Shaffer, Willem R. B. Potze
  • Patent number: 7885276
    Abstract: Managing data in a server system includes providing a plurality of servers, each having an internal gateway/switch that is accessible from outside the server, providing a plurality of virtual servers on at least some of the servers, where each of the virtual servers is accessible by the internal gateway/switch of the corresponding server, and accessing the data using the internal gateway/switch, where the internal gateway/switch determines which particular one of the virtual servers contain the data and then accesses the particular virtual server to provide the data. Managing data in a server system may also include associating portions of the data to tenants of the server system. Each of the servers may maintain a table that correlates tenants with the virtual servers maintained thereby and the internal gateway/switch may use the table to determine which particular one of the virtual servers contains data for a particular tenant.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: February 8, 2011
    Assignee: EMC Corporation
    Inventor: Wayzen Lin
  • Patent number: 7885277
    Abstract: Methods and apparatus to analyze autonomous system (AS) peering policies are disclosed. A disclosed example method comprises obtaining routing information from two or more border routers of a first AS, wherein the routing information identifies two or more routes to a prefix associated with a second AS, and wherein the second AS is a peer of the first AS, identifying one of the two or more routes as an inferior route advertised by the second AS based on the routing information, and determining whether a routing impact is present within the first AS due to the advertised inferior route.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: February 8, 2011
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Aman Shaikh, Thomas Bradley Scholl, Ashley Flavel
  • Patent number: 7885278
    Abstract: This invention discloses a method for connecting a media stream, which includes: transmitting, by a media gateway in a private network, a connecting message to an external network device through a network address translation device; the connecting message is used for generating a new address mapping, which is used for a subsequent media stream to pass through the network address translation device, in the network address translation device when there is no address mapping available in the network address translation device; and the connecting message is used for keeping alive an address mapping when the address mapping is already available in the network address translation device. The invention further discloses a system for connecting a media stream, two methods for detecting connectivity, and a system for detecting connectivity.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: February 8, 2011
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Ning Zhu