22nd week of 2012 patent applcation highlights part 27 |
Patent application number | Title | Published |
20120134317 | METHOD FOR RESOURCE ALLOCATION IN A WIRELESS COMMUNICATION NETWORK, METHOD FOR ERROR-FREE TRANSMISSION OF INFORMATION, NODE AND WIRELESS COMMUNICATION NETWORK - An approach for resource allocation in a wireless communication network including a sender, a relay station and a receiver in case of a retransmission of information from the relay station to the receiver is described, wherein a resource necessary for retransmission is determined on the basis of the relayed channel and the relay function. | 2012-05-31 |
20120134318 | METHOD AND APPARATUS OF PAGING AN IDLE MODE STATION IN MULTI-HOP RELAY COMMUNICATION SYSTEM - Disclosed is a method of paging an idle-mode terminal in a multi-hop relay communication system, the method including receiving an idle mode request message from the terminal, sending an idle mode response message to the terminal, the idle mode response message including paging information, receiving a superframe from a base station, the superframe including a paging message of the terminal, and staggering the superframe number by a multi-hop count apart from the base station so as to send to the terminal. | 2012-05-31 |
20120134319 | METHOD AND APPARATUS FOR LOCAL GATEWAY ASSIGNMENT IN WIRELESS NETWORKS - A local gateway assignment capability is depicted and described herein. In a wireless service provider network, the local gateway assignment capability enables a local gateway, rather than a core gateway, to be selected to serve a user request for an APN. The local gateway and core gateway may be a Local-GGSN (L-GGSN) and a GGSN, respectively, where the L-GGSN is associated with an SGSN and provides local traffic offloading for the GGSN and where the GGSN provides a gateway for the core network portion of the wireless service provider network. A DNS element or other device is configured to determine an SGSN-specific APN in response to receiving a DNS Request from an SGSN. A DNS element is configured to identify, using an SGSN-specific APN associated with an SGSN, an L-GGSN associated with the SGSN, and to provide an indication of the L-GGSN to the SGSN from which the DNS Request is received, thereby enabling the user associated with the DNS Request to use the L-GGSN rather than the GGSN. | 2012-05-31 |
20120134320 | METHOD AND SYSTEM FOR IMPROVED MULTI-CELL SUPPORT ON A SINGLE MODEM BOARD - A system for providing multi-cell support within a single SMP partition in a telecommunications network is disclosed. The typically includes a modem board and a multi-core processor having a plurality of processor cores, wherein the multi-core processor is configured to disable non-essential interrupts arriving on a plurality of data plane cores and route the non-essential interrupts to a plurality of control plane cores. Optionally, the multi-core processor may be configured so that all non-real-time threads and processes are bound to processor cores that are dedicated for all control plane activities and processor cores that are dedicated for all data plane activities will not host or run any threads that are not directly needed for data path implementation or Layer 2 processing. | 2012-05-31 |
20120134321 | SYSTEMS AND METHODS FOR ENABLING RECIPIENT CONTROL OF COMMUNICATIONS - Disclosed herein are methods and systems for enabling recipient control of communications. According to an aspect, a method may include receiving a communication request identifying a proposed timing of a communication and/or a proposed communication channel for the communication. The method may also include receiving selection of an actual timing and/or an actual communication channel for the communication. Further, the method may include initiating the communication based on the selection. | 2012-05-31 |
20120134322 | CELL SEARCH METHOD FOR A DOWNLINK CHANNEL OF AN OFDMA TRANSMISSION SYSTEM - A cell search method in a multiple carrier wireless network includes a step of trying to select, among a list of candidate couples [carrier frequency; bandwidth], at least one candidate associated with at least one cell of the multiple carrier wireless network. The cell search method includes: a step of obtaining and ordering an initial list of possible candidate couples [carrier frequency; bandwidth] according to the multiple carrier wireless network; a step of reducing the initial list, delivering a reduced list, the reduced list including only candidates compatible with a predetermined communication mode of the multiple carrier wireless network, through a differential cross correlation of the candidate couples [carrier frequency; bandwidth] of the initial list; a cell search step in which a cross-correlation is performed by testing all time/frequency hypothesis for at least one candidate of the reduced list of candidates, delivering synchronisation information. | 2012-05-31 |
20120134323 | Managing User Registrations of Roaming IMS Users - Techniques for managing a registration of a roaming user terminal ( | 2012-05-31 |
20120134324 | 80MHZ/160MHZ TRANSMISSION OPPORTUNITY (TXOP) PROTECTION IN 802.11ac TRANSMISSIONS - A method and apparatus for negotiating an idle subchannel set for a wireless data transmission. The method includes transmitting an indication of a first set of idle subchannels to a wireless station. The method also includes receiving an indication of a second set of idle subchannels from the wireless station. The method further includes determining a final set of idle subchannels based on the indication of the first set of idle subchannels and the indication of the second set of idle subchannels. | 2012-05-31 |
20120134325 | BRANCH METRICS CALCULATION FOR MULTIPLE COMMUNICATIONS STANDARDS - A method for branch metric calculation in a plurality of communications standards is disclosed. The method generally includes steps (A) to (C). Step (A) may calculate a plurality of sum values by adding a plurality of first values related to a plurality of information bits, a plurality of second values related to the information bits and a plurality of third values related to a plurality of parity bits. Step (B) may generate a plurality of permutated values by permutating the sum values based on a configuration signal. The configuration signal generally identifies a current one of the communications standards. Step (C) may generate a plurality of branch metrics values by adding pairs of the permutated values. | 2012-05-31 |
20120134326 | BONDING MULTIPLE RADIOS IN WIRELESS MULTI-HOP MESH NETWORKS - In a mesh network composed of multiple-radio nodes, we assign each radio to one of a plurality of channels, and treat a plurality of links between a pair of nodes as one logical link (bonded link). In some embodiments, the routing protocol is adapted to view each bonded link as one link having a combination of at least some of the properties of the constituent physical links. Traffic sent along a path is dynamically load balanced between the interfaces at each intermediate node based on the current utilization of each interface. In at least some embodiments, route discovery packets record the metrics of each component link of the bonded links leaving a node, but only one route discovery packet per pair of nodes is forwarded, reducing the route discovery packet traffic compared to if each route discovery packet were forwarded over each component link between the pair of nodes. | 2012-05-31 |
20120134327 | SEMI-PERSISTENT RESOURCE ALLOCATION METHOD FOR UPLINK TRANSMISSION IN WIRELESS PACKET DATA SYSTEMS - A wireless telecommunications network supplies a semi-persistent resource that a wireless station can use for special purposes (such as a retransmission of packets for ARQ purposes or a control signal. The semi-persistent resource can be allocated by the system to other terminals if, e.g., a retransmission is not required. Since a retransmission is generally performed in response to a NACK received from a base station, the NACK may itself serve as a token that permits the wireless station to use the semi-persistent allocation. Thus, the technology includes, e.g., a method for resource allocation on a semi-persistent basis and efficient signaling for the usage of such allocation. | 2012-05-31 |
20120134328 | METHOD AND APPARATUS FOR DYNAMIC SPECTRUM MANAGEMENT - Described herein are methods, apparatus and architecture for dynamic spectrum management (DSM) including protocol stacks, logical entities and functionalities that support DSM operation in opportunistic spectrum such as television white space (TVWS). The architecture supports aggregating bandwidth at the internet protocol (IP) layer over licensed and opportunistic bands as well as noncontiguous spectrum aggregation at the medium access control (MAC) layer. The control plane protocol stack includes a multi network transport protocol (MNTP), a channel management (CM) protocol, a policy protocol, a medium access control (MAC) entity, a physical entity and an air interface, all of which are configured to allocate, monitor, and update aggregated spectrum resources with respect to a DSM client. | 2012-05-31 |
20120134329 | APPARATUS AND METHOD FOR SUPPORTING PERIODIC MULTICAST TRANSMISSION IN MACHINE TYPE COMMUNICATION SYSTEM - An apparatus and a method for supporting periodic multicast transmission in a machine type communication system are provided. A method for operating a Base Station (BS) in a communication system includes allocating persistent resources for data transmission of a service group, selecting at least one MS to feed back a success/failure in receiving a map including the persistent resource allocation information, among Mobile Stations (MSs) to receive the persistent resource allocation information, and transmitting the map including the persistent resource allocation information and information indicating the selected MS. | 2012-05-31 |
20120134330 | ESTABLISHING ADDITIONAL REVERSE LINK CARRIERS IN MULTI-CARRIER WIRELESS SYSTEMS - A method and apparatus for reliably and quickly establishing multiple reverse links in multi-carrier wireless networks is provided. Signaling channels are established the on an existing forward link in order to transmit reverse link power control bits and the acknowledgment indications. | 2012-05-31 |
20120134331 | METHOD FOR TRANSMITTING CHANNEL QUALITY INDICATOR - Disclosed is a method for transmitting channel quality indicator (CQI) during a sleep mode operation. The method for transmitting CQI includes: receiving a message including a CQI-related parameter indicating a transmission of a CQI before a listening window; transmitting a CQI during a sleep window before the listening window according to a CQI-related parameter in the message; transitioning to the listening window according to a listening window-related parameter after transmitting the CQI; and waiting for receiving a message indicating whether or not there is data or traffic transferred from the base station during the listening window. | 2012-05-31 |
20120134332 | TRANSMISSION METHOD AND DEVICE FOR UPLINK CONTROL CHANNEL - A transmission method for uplink control channel is provided, and the method comprises the following steps: a base station configures a transmission mode for the uplink control channel of a user equipment (UE) via high signaling; according to the transmission mode, the base station receives the uplink control channel sent by the UE via a transmit diversity or a single antenna port. A device for implementing the transmission for uplink control channel is also provided. With the present solution, according to the operation state of the system the base station flexibly configures the UE having multiple transmitting antennas to transfer uplink control channel by using different modes, so as to improve the reliability and efficiency of the system and enhance the performance of the system effectively. | 2012-05-31 |
20120134333 | TERMINAL DEVICE AND RETRANSMISSION CONTROL METHOD - Provided are a terminal device and a retransmission control method by which, when carrier aggregation communication using a plurality of downlink unit bands is applied, the quality of downlink data transmitted by each downlink unit band can be maintained, while suppressing the increase in overhead of downlink allocation control information. In a terminal ( | 2012-05-31 |
20120134334 | METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS MULTIPLE ANTENNAS - A method for transmitting a reference signal for a maximum of eight antenna ports includes mapping a portion of common reference signals (CRSs) for a maximum of four antenna ports into a downlink subframe that includes a 1 | 2012-05-31 |
20120134335 | RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION DEVICE, AND RADIO COMMUNICATION METHOD - A transmitting station having plural antennas includes: a control information calculation unit that calculates control information for use by plural receiving stations according to a multi-user MIMO data transmission scheme; a control information transmission parameter calculation unit that calculates a control information transmission parameter based on spatial channel related information; and a control information transmission signal creation unit that creates a control information transmission signal, using the control information transmission parameter and a pilot signal. A resource element mapping unit maps control information transmission signals onto corresponding resource elements for transmission. On the other hand, the receiving stations each include a control information acquisition unit that acquires plural pieces of control information signaled on the corresponding resource elements, acquire control information destined for each receiving station, and demodulate received signals. | 2012-05-31 |
20120134336 | MOBILE STATION COMMUNICATION DEVICE, INTER-MOBILE STATION COMMUNICATION SYSTEM, AND INTER-MOBILE STATION COMMUNICATION METHOD - A communication device is used by a mobile station to perform wireless communication with another mobile station. The communication device includes a processor configured to set a transmission resource according to a present position of the mobile station, the transmission resource being set based on transmission resource association information including different transmission resources assigned to plural assignment areas provided at different positions along a road through which the mobile station passes; and a transmitter configured to transmit data with the use of the transmission resource that has been set. | 2012-05-31 |
20120134337 | MOBILE COMMUNICATION SYSTEM, BASE STATION APPARATUS, AND MOBILE STATION APPARATUS - The amount of control information is reduced for specifying the transmission method for simultaneously transmitting uplink data and reception quality information, and uplink data and ACK/NACK. Delay in changing the transmission method is reduced, and the mapping of uplink data and reception quality information and of uplink data and ACK/NACK is realized, in compliance with modulation scheme and coding rate of the uplink data specified by the base station apparatus. In a mobile communication system the base station apparatus allocates, to the mobile station apparatus, resources wherein the base station apparatus transmits, to the mobile station apparatus, control information for specifying a transmission format for the mobile station apparatus to transmit information using the uplink, while the mobile station apparatus simultaneously transmits, to the base station apparatus, uplink data and reception quality information based on the specified transmission format when the control information from the base station apparatus is received. | 2012-05-31 |
20120134338 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING A SIGNAL IN A WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS MULTI-USER MIMO TRANSMISSION - The present invention relates to a wireless communication system, and discloses a method and apparatus for transmitting/receiving a signal in a wireless communication system that supports multi-user MIMO transmission. According to one embodiment of the present invention, a method in which a mobile station receives a signal in a wireless communication system that supports multi-user MIMO transmission, comprises: a step of receiving information on the entirety of the transmission rank of the multi-user MIMO transmission; a step of receiving a reference signal and data for demodulation for the mobile station on the basis of the information on the entirety of the transmission rank; a step of acquiring channel information on the mobile station from the reference signal for demodulation; and a step of demodulating said data on the basis of the acquired channel information. | 2012-05-31 |
20120134339 | SYSTEM AND METHOD FOR SETTING ADAPTIVE HANDOFF PARAMETERS - Provided are a system and method for setting an adaptive set of handoff parameters. The system includes a user terminal configured to transmit an authentication request to a network and receive a set of handoff parameters from the network; an access point (AP) belonging to the network and configured to receive the authentication request from the user terminal, transmit the authentication request to a central management server, receive the set of handoff parameters from the central management server, and transmit the set of handoff parameters to the user terminal; and the central management server, which is configured to store and manage a plurality of network-specific sets of handoff parameters for one or more networks, authenticate the user terminal using the authentication request received from the AP, and transmit a set of handoff parameters of a network to which the authenticated user terminal connects to the AP. | 2012-05-31 |
20120134340 | METHOD AND APPARATUS FOR REDUCING BREAK DURATION IN HANDOVER OF VOIP CONVERSATION - The invention proposes a method and an apparatus for reducing break duration in handover of a VoIP conversation from a packet switch domain to a circuit switch domain. The main idea is that a synchronization mechanism is introduced between the session handover procedure at IP multimedia subsystem IMS layer and a cell handover procedure at layer | 2012-05-31 |
20120134341 | MAINTAINING A MAINTENANCE CHANNEL IN A REVERSE LINK OF A WIRELESS COMMUNICATIONS SYSTEM - In a reverse link of a wireless CDMA communication system, a method of maintaining an idling mode connection between a field unit and a base transceiver station is provided using various techniques to maintain the idle mode connection at a reduced power level. A preferred embodiment computes a time slot or frame offset based on modulo function using a field unit identifier in order to distribute field unit maintenance transmissions among available slots or offsets. An alternate embodiment detects explicit signaling states changes at the physical layer and causes power target changes. A further embodiment transmits maintenance data during predetermined time intervals, coordinated between the field units and BTS, allowing power levels to be adjusted accordingly. | 2012-05-31 |
20120134342 | METHOD FOR COORDINATION OF WIRELESS TRANSCEIVERS OF A NETWORK NODE AND NETWORK NODE - A method for coordination of wireless transceivers of a network node, in particular for application in communication nodes of a vehicular network, wherein the network node is equipped with one or more wireless transceivers that are capable of simultaneously generating and/or receiving electromagnetic signals on different electromagnetic channels, the electromagnetic signals being potentially able to interfere with each other, is characterized in the steps of, for each pending packet transmission on a particular of the electromagnetic channels, checking the presence of ongoing and/or scheduled activity on one or more of the other of the electromagnetic channels, and deferring the pending packet transmission in case ongoing and/or scheduled activity is detected on one or more of the other of the electromagnetic channels, at least until the detected ongoing and/or scheduled activity on one or more of the other of the electromagnetic channels is completed. Furthermore, a corresponding network node is disclosed. | 2012-05-31 |
20120134343 | WIRELESS CHANNEL ALLOCATION IN A BASE STATION PROCESSOR - A system and method are provided for allocating wireless channels in a base station processor to messages sent between a subscriber and the base station processor in a wireless network. A latency period is determined corresponding to a return message to be received from a responsive node in response to an outgoing message sent from a sender via the base station processor. A latency manager in the base station processor computes the latency period and stores the latency period in an allocation table. A scheduler schedules a channel to be available at the end of the latency period indicated in the allocation table. At the end of the latency period, the return message is received and the scheduler allocates a channel as defined in the allocation table. The scheduled channel is used to transmit the message to or from the corresponding subscriber. | 2012-05-31 |
20120134344 | Scheduling In Radio Telecommunication System - A method, apparatus, and computer program is provided for controlling direct device-to-device communication between a first and at least a second terminal device on a shared communication channel also used for communication with a base station. The base station schedules the utilization of the shared communication channel to terminal devices communicating with the base station and terminal devices communicating directly with one another. | 2012-05-31 |
20120134345 | Systems and Methods of Supporting Emergency Communications - Systems and methods for supporting E911 for VoIP mobile communications are provided. A mobile station formats a call setup message by including particular information in a header portion of the call setup message that is used by the wireless network to select an appropriate PSAP and route the call to the appropriate PSAP. | 2012-05-31 |
20120134346 | WIRELESS COMMUNICATION SYSTEM NETWORK EQUIPMENT WITH BROADCAST-BASED BACKHAUL NETWORK INTERFACE AND NEXT GENERATION AIR INTERFACE - Network equipment of a wireless communication system comprises a backhaul interface for communicating with a broadcast-based backhaul network and an air interface for communicating with a plurality of mobiles. The network equipment is configured to serve as a proxy on the broadcast-based backhaul network for at least a given one of the mobiles that communicates with the network equipment over the air interface, by determining an IP address for the given mobile and sending a broadcast message over the broadcast-based backhaul network advertising itself as the proxy in association with the IP address. The network equipment may comprise at least a portion of a base station of the wireless communication system. The broadcast-based backhaul network may comprise a local area network that operates in accordance with an Ethernet protocol, and the air interface may comprise an LTE air interface or a WiMAX air interface. | 2012-05-31 |
20120134347 | ROUTING METHOD FOR WIRELESS MESH NETWORKS AND WIRELESS MESH NETWORK SYSTEM USING THE SAME - In the wireless mesh network including a sender, a receiver, and a plurality of access points disposed between the sender and the receiver, available transmission paths between the sender and the receiver are determined; transmission expected values are calculated for the transmission paths; and a transmission path having a minimum transmission expected value is set as an actual transmission path. The transmission expected value is a sum of expected transmission counts, which is a reciprocal of multiplication of forward transmission success rate and backward transmission success rate of a communication link between the nodes disposed on the transmission paths. When an access point can transmit a packet concurrently with another access point, the expected transmitted count is reduced by half. | 2012-05-31 |
20120134348 | APPARATUS AND METHOD FOR DETERMINING POSITION OF SENSOR NODE IN LOCATION SERVICE BASED SYSTEM - An apparatus and method for determining a position of a sensor node in a location service based system are provided. An operation method of a Secure User Plane Location (SUPL) Location Platform (SLP) for determining a position of a sensor node in a location service based system includes receiving a position determination request for a sensor node from an SUPL agent, interworking with a Location Registration Server (LRS) and acquiring routing information of the sensor node, sending a position determination start request for the sensor node to a gateway mapped to the sensor node using the acquired routing information, and interworking with the gateway and determining the position of the sensor node. | 2012-05-31 |
20120134349 | DEVICE DISCOVERY METHOD AND APPARATUS OF WI-FI P2P DEVICE - A device discovery method and apparatus of a Wi-Fi Peer-to-Peer (P2P) device for improving connection compatibility with legacy devices are provided. The method includes receiving a command for executing a modified P2P device discovery mode, configuring the Wi-Fi P2P device as a group owner autonomously, entering a group owner receive mode in which a probe request can be received, and discovering an external device which transmits the probe request. | 2012-05-31 |
20120134350 | System, Computer Program Product And Method For Accessing A Local Network Of Electronic Devices - A method of managing electronic devices includes providing a main server including software for managing network resources from a single point of administration, receiving at the main server wireless data packets from a plurality of wireless electronic devices, and determining a registered device among the plurality of wireless electronic devices. The registered device is then wirelessly connecting to the main server to create a wireless local area network (LAN), and is managed using the software. The registered device may be an appliance, an environmental control device, or an entertainment device and the LAN may be a home or office LAN. | 2012-05-31 |
20120134351 | Short Messaging Service Over 3GPP Long Term Evolution - The application relates to SMS over LTE radio access. Several alternatives are already known, such as specified in 3GPP TS 24.247 which supports text messaging capabilities and 3GPP 23.204 which supports all existing SMS capabilities through SMS encapsulation in IP. Furthermore, 3GPP 23.272 which relates to SMS in CS fallback. A further technique is known as Generic Access Network which is under study in 3GPP 23.879 relating to CS domain services over evolved PS access and in Voice Over LTE VOLGA. The present application provides a solution for handling messages between legacy networks in the form of circuit-switched networks and IP network architecture in the form of an IP Multimedia Subsystem IMS while minimizing the efforts needed for system integration by maximal reuse of existing functionalities. This is achieved by an entity ( | 2012-05-31 |
20120134352 | Systems and Methods for Web-Based Push-To-Talk Communications - A method of enabling a push-to-talk (PTT) connection between a first user on a first network and a second user on a second network is provided. According to the method, a web application registration server on the first network receives and authenticates login information from the first user, forwards the login information to a PTT server, and assigns a temporary network identity from a pre-allocated pool of network identities to a client of the first user. After the PTT registration has been authenticated, a PTT call may be conducted between the first user and the second user. The first network may be an internet protocol-based network. The second network is a multiple-access network for cellular devices, such as a Time Division Multiple Access (TDMA) network or any other wireless network. | 2012-05-31 |
20120134353 | METHODS AND APPARATUS FOR METHOD FOR MAINTAINING A RADIO LINK AT A MOBILE RADIO - Methods and apparatus are provided for radio link maintenance at a mobile radio in a wireless communication network. The disclosed methods and apparatus help a mobile radio maintain a radio link by regularly monitoring frame synchronization, regularly checking a scrambling sequence of a mobile radio against that of infrastructure equipment, and regularly detecting and/or recovering from fade conditions. In the event the radio link can not be maintained, then the disclosed methods and apparatus will cause the mobile radio to switch to a control channel so that the synchronization, scrambling mismatch and/or fade issues may be corrected. In one implementation, the disclosed methods and apparatus can be implemented at mobile radios in an Association of Public-Safety Communications Officials (APCO) Project 25 (P25) compliant system. | 2012-05-31 |
20120134354 | METHOD AND SYSTEM FOR HANDLING SECURITY SYNCHRONIZATION FOR PROLONGED PERIODS OF NO-RECEPTION OF VOICE FRAMES - A method and system for handling security synchronization for prolonged periods of no-reception of voice frames. The method includes receiving one or more protocol data units (PDUs) by a radio link control (RLC) sub layer and determining a time period between the receiving of each PDU and a previously received PDU by the RLC sub layer. Further, the method includes initiating recovery procedure for the time period exceeding a first predefined time. The recovery procedure includes identity count of the one or more PDUs to be recovered, deciphering each PDU using a plurality of hyper frame numbers (HFNs) and updating a master HFN based on the deciphering. The master HFN deciphers each PDU among the one or more protocol data units. Further, the method also includes delivering the one or more PDUs to a packet data convergence protocol sub layer where type verification of the PDU is performed. | 2012-05-31 |
20120134355 | User Partitioning in a Communication System - Systems and methods for routing an incoming service request to one of a plurality of pod units are described. A communication system can be provided that includes a plurality of pods each having a first pod serving a first subset of user accounts associated with a hosted PBX system. The first pod can include a first pod unit in a first data center and a second pod unit in a second data center. A global user directory (GUD) can be used to store a plurality of user keys that are mapped to the plurality of pods. A router can be provided to identify a user key from an incoming service request, query the GUD to identify the first pod as being associated with the user key, and route the incoming service request to one of the first and second pod units. | 2012-05-31 |
20120134356 | MANAGEMENT OF STORAGE AND RETRIEVAL OF DATA LABELS IN RANDOM ACCESS MEMORY - According to an example embodiment, a technique may be provided for managing a label data base of which each entry comprises a data field for insertion into a respective packet in a multicast transmission and a validity field. The technique may include, for example, (a) establishing a fixed size for a cluster of labels, (b) associating with each cluster a pointer to another cluster, (c) establishing a sentinel cluster of which all entries are indicated to be invalid and of which the cluster pointer points to this sentinel cluster, (d) establishing a root table which defines the number of replications of the packet in a multicast group and identifies a first label cluster associated with the multicast group and (e) establishing a chain of clusters of which each cluster which is full of valid entries points to the next cluster in the chain and the last cluster which contains valid entries points to the sentinel cluster. | 2012-05-31 |
20120134357 | MULTICAST IMPLEMENTATION IN A LINK STATE PROTOCOL CONTROLLED ETHERNET NETWORK - Forwarding state is installed for sparse multicast trees in a link state protocol controlled Ethernet network by enabling intermediate nodes to install state for one or more physical multicast trees, each of which may have multiple logical multicast trees mapped to it. By mapping multiple logical multicasts to a particular physical multicast, and installing state for the physical multicast, fewer FIB entries are required to implement the multiple multicasts. Mapping may be performed by destination nodes before advertising membership in the physical multicast, or may be performed by the intermediate nodes before installing state when a destination node advertises membership in a logical multicast. Intermediate nodes will install state for the physical multicast tree if they are on a shortest path between a source and at least one destination of one of the logical multicasts that has been mapped to the physical multicast. | 2012-05-31 |
20120134358 | Interconnecting Virtual Domains - According to certain embodiments, control packets are received through a control plane tunnel that communicates control traffic for virtual private networks (VPNs) among autonomous systems. A routing instance of each control packet is identified according to a control tag of the control packet. At least two routing instances are distinct from each other. The control packets are routed according to the routing instances. According to certain embodiments, data packets are received through a data plane tunnel that communicates data traffic for the VPNs among the autonomous systems. A forwarding instance of the control packet is identified for each data packet according to a data tag of the data packet. At least two forwarding instances are distinct from each other. The data packets are forwarded according to the forwarding instances. | 2012-05-31 |
20120134359 | SWITCH AND SWITCHING METHOD - A switch includes a plurality of port units, a tag attaching unit, a switching unit, and a tag removing unit. Each of the plurality of port units includes a port configured to receive a packet or transmit a packet. The tag attaching unit determines a sub-group identifier on the basis of an input port identifier for identifying an input port which has received an input packet and a group identifier included in the input packet for identifying a group of ports, and attaches a sub-group tag including the determined sub-group identifier to the input packet to acquire an augmented packet. The switching unit determines an output port for outputting the input packet on the basis of the determined sub-group identifier, the group identifier, and a destination address included in the augmented packet. The tag removing unit removes the attached sub-group tag from the augmented packet to acquire the input packet. | 2012-05-31 |
20120134360 | DEVICE AND METHOD FOR PROCESSING NETWORK PACKET - A device for processing a network packet includes a capturing unit, a look-up table supplying unit, a preprocessing unit and a control unit. The capturing unit is utilized for capturing an information from the network packet. The look-up table supplying unit is utilized for supplying a look-up table. The preprocessing unit is coupled to the capturing unit and the look-up table supplying unit, for comparing the information with the look-up table to generate a comparison result. The control unit is coupled to the preprocessing unit, for choosing a processing rule to process the network packet according to the comparison result. | 2012-05-31 |
20120134361 | SYSTEM AND METHOD OF UTILIZING A FRAMEWORK FOR INFORMATION ROUTING IN LARGE-SCALE DISTRIBUTED SYSTEMS USING SWARM INTELLIGENCE - In some embodiments, the invention involves information routing in networks, and, more specifically, to defining a framework using swarm intelligence and utilization of the defined framework for routing information in the network, especially for cloud computing applications. In an embodiment, information about available information/services is pushed to network nodes using information packets (ants). Nodes requiring services send query packets (ants) and a node may send a response to a query ant when information is available. Ants may be forwarded throughout the network based on popularity of nodes, freshness of information/requests, routing table information, and requests or interest by consumer nodes captured in information routing table. Other embodiments are described and claimed. | 2012-05-31 |
20120134362 | RECEIVER, RECEPTION METHOD, PROGRAM AND COMMUNICATION SYSTEM - Disclosed herein is a receiver including: a reception section adapted to sequentially receive a plurality of packets from a transmitter; a first processing section adapted to output a predetermined number of packets received by the reception section all together if the predetermined number of packets are received without any loss by the reception section; a second processing section adapted to accept the predetermined number of packets output all together from the first processing section; a detection section adapted to detect a predetermined request; and a control section adapted to control the first processing section to output a packet, received by the reception section, to the second processing section each time the reception section receives a packet if the detection section detects the predetermined request. | 2012-05-31 |
20120134363 | METHOD AND APPARATUS FOR USING A GOSSIP PROTOCOL TO COMMUNICATE ACROSS NETWORK PARTITIONS - A computing device sends a message to a destination node. Upon failing to receive a message response from the destination node, the computing device sends a query to a plurality of additional nodes, wherein the query causes the additional nodes to attempt to communicate with the destination node and to forward the query to other additional nodes if the attempt to communicate with the destination node fails. Further, the computing device receives a query response from an additional node of the plurality of additional nodes, the query response indicating that the additional node can communicate with the destination node, and uses the additional node as a proxy for communicating with the destination node. | 2012-05-31 |
20120134364 | SWITCHES AND A NETWORK OF SWITCHES - A switch includes at least one input configured to receive data and at least two outputs configured to send data to at least two further switches in a network via at least two output links. Each output link has a known hop value. The switch further includes a direction determinator that determines a routing direction for the data from information identifying a relative location of the switch in the network and information identifying a destination of said data. A distributor within the switch processes the routing direction and direction information about each output link in order to select one of said at least two outputs for outputting said data. The selection that is made prioritizes output links for selection which have relatively higher known hop values. | 2012-05-31 |
20120134365 | METHOD AND NETWORK DEVICE FOR ASSOCIATED CHANNEL CAPABILITY NEGOTIATION - A method for Associated Channel (ACH) capability negotiation includes: receiving a first label mapping message; judging whether the first label mapping message carries ACH capability information of a first node; if the first label mapping message carries the ACH capability information of the first node, generating a second label mapping message, where the second label mapping message carries the ACH capability information of the first node; and sending the second label mapping message to an upstream node. The method may be applied in a Multi-Protocol Label Switching (MPLS) network, and may be used for distribution and negotiation of ACH capabilities of a network device. | 2012-05-31 |
20120134366 | PHYSICAL LAYER MANAGEMENT SYSTEM - An Ethernet outlet senses the presence of an Ethernet signal and transmits an Ethernet ID signal in response to the restoration of an Ethernet signal that was interrupted. The sensing circuit is designed to have no detrimental effect on Ethernet signals. Using this system, the locations of Ethernet outlets and network endpoint devices connected to the outlets can be determined following the interruption and reestablishment of network communications. Outlets according to the present invention can be used in copper-based networks or in networks having fiber optic components. | 2012-05-31 |
20120134367 | SIGNAL DISTRIBUTION CIRCUIT AND STUFFING CONTROL UNIT - A signal distribution circuit includes: first to n-th input lines on which first to n-th signals are respectively input; first to (n−1)th selectors each of which selects one of two inputs under the control of a select signal; and a first output line on which the first signal is output and second to n-th output lines on which output signals of the first to (n−1)th selectors are respectively output, wherein: the first and second inputs of the first selector are supplied with the first signal and the second signal, respectively, the first and second inputs of the i-th selector (i is an integer between 2 and (n−1)) are supplied with the output signal of the (i−1)th selector and the (i+1)th signal, respectively, and any of the selectors, when selected by the select signal, selects the second input and, when not selected by the select signal, selects the first input. | 2012-05-31 |
20120134368 | DYNAMIC DISCOVERY MECHANISMS VIA INTER-DOMAIN ROUTING PROTOCOL - In an embodiment, a method is provided at which it is used in a device. In this method, a logical identifier assigned to the device is identified and additionally, a mesh group identifier identifying a mesh group is identified. The logical identifier and the mesh group identifier are encoded in a routing message, which is used in an inter-domain routing protocol, and this routing message is transmitted to a reflector device in communication with the device. The reflector device is configured to transmit the routing message to a remote device included in the computer network. | 2012-05-31 |
20120134369 | Programmable Queuing Instruction Set - A traffic manager includes an execution unit that is responsive to instructions related to queuing of data in memory. The instructions may be provided by a network processor that is programmed to generate such instructions, depending on the data. Examples of such instructions include (1) writing of data units (of fixed size or variable size) without linking to a queue, (2) re-sequencing of the data units relative to one another without moving the data units in memory, and (3) linking the previously-written data units to a queue. The network processor and traffic manager may be implemented in a single chip. | 2012-05-31 |
20120134370 | ASYNCHRONOUS COMMUNICATION IN AN UNSTABLE NETWORK - Embodiments are directed to promptly reestablishing communication between nodes in a dynamic computer network and dynamically maintaining an address list in an unstable network. A computer system sends a message to other message queuing nodes in a network, where each node in the message queuing network includes a corresponding persistent unique global identifier. The computer system maintains a list of unique global identifiers and the current network addresses of those network nodes from which the message queuing node has received a message or to which the message queuing node has sent a message. The computer system goes offline for a period of time and upon coming back online, sends an announcement message to each node maintained in the list indicating that the message queuing node is ready for communication in the message queuing network, where each message includes the destination node's globally unique identifier and the node's current network address. | 2012-05-31 |
20120134371 | QUEUE SCHEDULING METHOD AND APPARATUS - A queue scheduling method and apparatus is disclosed in the embodiments of the present invention, the method comprises: one or more queues are indexed by using a first circulation link list; one or more queues are accessed respectively by using the front pointer of the first circulation link list, and the value acquired from subtracting a value of a unit to be scheduled at the head of the queue from a weight middle value of each queue is treated as the residual weight middle value of the queue; when the weight middle value of one queue in the first circulation link list is less than the unit to be scheduled at the head of the queue, the queue is deleted from the first circulation link list and the weight middle value is updated with the sum of a set weight value and the residual weight middle value of the queue; the queue deleted from the first circulation link list is linked with a second circulation link list. The present invention enables the scheduling to support any number of queues, and supports the expansion of the number of queues under the circumstances that the hardware implementation logic core is not changed. | 2012-05-31 |
20120134372 | NETWORK DEVICE AND NETWORK CONNECTING METHOD - A network device includes a first transceiver unit, a second transceiver unit and a control unit. The first transceiver unit is utilized for processing a data corresponding to a first physical (PHY) layer via a first interface. The second transceiver unit is utilized for processing a data corresponding to a second PHY layer via a second interface. The control unit is utilized for processing a data corresponding to a media access control (MAC) layer, wherein the control unit connects with at least one of the first transceiver unit and the second transceiver unit with reference to a connection scheme. | 2012-05-31 |
20120134373 | METHOD OF PACKETIZING ENCODED SYMBOLS AND APPARATUS USING THE SAME - Provided are a method of packetizing encoded symbols and an apparatus using the same. The method includes an encoded symbol and target packet selection step of deciding a first source symbol and selecting an unpacketized first encoded symbol and a target packet into which the unpacketized first encoded symbol is inserted if there is the unpacketized first encoded symbol of at least one first encoded symbol, which is an encoded symbol of the first source symbol generated using an AND-OR tree structure, and a packetization step of generating a second source symbol based on at least one unpacketized first encoded symbol by use of the AND-OR tree structure, generating at least one second encoded symbol based on the second source symbol by use of the AND-OR tree structure, and packetizing at least one of second encoded symbols into the target packet along with the first encoded symbol. | 2012-05-31 |
20120134374 | COMMUNICATION APPARATUS AND METHOD OF TRANSFERRING DATA - A communication apparatus detects the start and end of a frame of a video, and notifies information indicating that the start of the frame of the video is detected and information indicating that the end of the frame of the video is detected to a communication unit that performs communication access control and that is included in the communication apparatus. The communication unit controls an acknowledgement in a media access control level, in transfer of the video, based on the notification. | 2012-05-31 |
20120134375 | MULTI-BAND DATA TRANSMISSION - A system for transmitting and receiving data includes a physical adaptation block configured to separate the data into a plurality of frequency bands. Each of the frequency bands has an associated symbol time, and each of the associated symbol times is a whole multiple of one half of a smallest symbol time of all of the frequency bands. An analog front end is configured to provide the data in the plurality of frequency bands to a transmission medium. | 2012-05-31 |
20120134376 | Radiation-Insensitive Optical Fiber Doped with Rare Earths - An optical fiber includes a central core for transmitting and amplifying an optical signal, an optical cladding to confine the optical signal transmitted by the central core, and an outer cladding. The central core is formed of a core matrix and nanoparticles. The nanoparticles are formed of a nanoparticle matrix and rare earth dopants (i.e., a nanoparticle matrix surrounding the rare earth dopants). The optical cladding has a plurality of holes separated by a pitch and extending along the length of the optical fiber. | 2012-05-31 |
20120134377 | GENERATOR OF POLARIZATION ENTANGLED PHOTON PAIRS AND METHOD OF GENERATING THE SAME - A wavelength-multiplexed polarization entangled photon pair generator ( | 2012-05-31 |
20120134378 | SEMICONDUCTOR LASER DRIVING DEVICE AND IMAGE FORMING APPARATUS HAVING THE SEMICONDUCTOR LASER DRIVING DEVICE - A semiconductor laser driving device that drives a semiconductor laser with a driving current output from a driving current output terminal is disclosed. The semiconductor laser driving device includes a driving current monitoring terminal configured to output a driving current monitoring current having a value of 1/α of the driving current; a current-voltage conversion resistor connected to the driving current monitoring terminal and configured to convert the driving current monitoring current having the value of 1/α of the driving current into a corresponding driving current monitoring voltage; and a detector configured to generate a reference voltage and detect whether the corresponding driving current monitoring voltage has reached the reference voltage. | 2012-05-31 |
20120134379 | MULTI-BEAM LASER POWER CONTROL CIRCUIT AND IMAGE FORMING APPARATUS USING THE SAME - A disclosed multi-beam laser power control circuit includes a light receiving element receiving power output from semiconductor lasers to control output power of a semiconductor laser array having plural semiconductor lasers, automatic power control circuits (APC circuits) controlling emission power output from semiconductor lasers based on received corresponding automatic power control execution signals so as to be set to predetermined emission power based on output from the light receiving element, and APC execution signal input terminals inputting the corresponding automatic power control execution signals, wherein, when plural APC execution signals input to the corresponding APC execution signal input terminals are overlapped, the automatic power control circuits (APC circuits) to be preferentially operated is determined based on input timings of the APC execution signals and operated. | 2012-05-31 |
20120134380 | QUANTUM CASCADE LASER - A quantum cascade laser is configured to include a semiconductor substrate, and an active layer that is provided on the substrate and has a cascade structure formed by alternately laminating emission layers and injection layers by multistage-laminating unit laminate structures each consisting of the quantum well emission layer and the injection layer, and generates light by intersubband transition in a quantum well structure. In a laser cavity structure for light with a predetermined wavelength generated in the active layer, a front reflection film with a reflectance of not less than 40% and not more than 99% for laser oscillation light is formed on the front end face that becomes a laser beam output surface, and a back reflection film with a reflectance higher than that of the front reflection film for the laser oscillation light is formed on the back end face. | 2012-05-31 |
20120134381 | VERTICAL CAVITY SURFACE EMITTING DEVICES INCORPORATING WAFER FUSED REFLECTORS - A method of forming an optoelectronic device comprising growing a first multi-layer | 2012-05-31 |
20120134382 | SURFACE EMITTING SEMICONDUCTOR LASER COMPONENT HAVING A VERTICAL EMISSION DIRECTION - A surface emitting semiconductor laser component having a vertical emission direction includes a semiconductor body having a first resonator mirror, a second resonator mirror, and an active zone that generates radiation, wherein the first resonator mirror has alternately stacked first layers having a first composition and second layers having a second composition, the first layers have oxidized regions, at least the first layers each contain a dopant, and at least one layer of the first layers has a dopant concentration different from the dopant concentration of the other first layers. | 2012-05-31 |
20120134383 | ELECTRO-ABSORPTION MODULATOR AND OPTICAL SEMICONDUCTOR DEVICE - An electro-absorption modulator includes: a semiconductor substrate; and an n-type InP cladding layer, an AlGaInAs light absorbing layer, an InGaAsP optical waveguide layer, and a p-type InP cladding layer, which are sequentially laminated on the semiconductor substrate. The InGaAsP optical waveguide layer includes a plurality of InGaAsP layers with different constitutions. The energy barrier between valence band edges of the InGaAsP layers is smaller than the energy barrier when the InGaAsP optical waveguide layer includes only one InGaAsP layer. | 2012-05-31 |
20120134384 | Electric Arc Furnace - This invention concerns an electric arc furnace comprising a chamber suitable for containing molten steel; a roof suitable for covering the chamber and for containing a mass of scrap steel; electrodes suitable for melting the mass of scrap, and means of support on a base. The latter means are such as to support the chamber and permit its oscillation around a horizontal axis of rotation. The roof and the chamber are counterprofiled in correspondence to the respective interface walls to create a rotoidal type coupling with regard to the axis of rotation. The roof, during oscillation of the chamber, remains fixed with regard to the base as well as in a closed position with regard to the chamber. | 2012-05-31 |
20120134385 | TEMPERATURE CALCULATION BASED ON NON-UNIFORM LEAKAGE POWER - A system may include determination of a spatial power map associated with an integrated circuit based on an architecture of the circuit, generation of a spatial thermal map associated with the integrated circuit based on the spatial power map, and determination of a spatial leakage power map based on the spatial thermal map. In some aspects, a system includes determination of a temperature of an integrated circuit, comparison of the temperature with a thermal divergence temperature, determination that the temperature of the integrated circuit is primarily due to leakage power, and disabling of power to the integrated circuit. | 2012-05-31 |
20120134386 | MULTIFUNCTION LASER POWER METER - A laser power meter incorporating an absorber disc with a peripheral thermopile ring, either continuous or segmented, and an additional temperature detection element in the central portion, that enables measurement of beam size. This detection element can be a thermopile element, generally a ring of smaller diameter than the peripheral thermopile used, and located closer to the center of the absorber disc. With this arrangement the beam size can be measured, in addition to measurements of the power and the position of the beam. Alternatively, this centralized detection element can be a single thermocouple junction located at the center of the disc, which acts as the hot junction of a thermocouple pair. The second or cold junction is effectively located on the disc close to the peripheral thermopile. Alternatively, two temperature measuring elements can be used, one at the disc center and one at the periphery. | 2012-05-31 |
20120134387 | Communications Device with Integrated Case Temperature Measurement - A communications device with integrated case temperature measurement includes a case having at least one thermally conductive wall and a circuit board at least partially disposed within the case. At least one electronic component is mounted on the circuit board and a temperature sensor is mounted on the circuit board. At least one thermally conductive protrusion extends from the wall and is thermally coupled to the temperature sensor. | 2012-05-31 |
20120134388 | NAIL PUNCTURE TEST DEVICE HAVING TEMPERATURE MEASUREMENT FUNCTION - In a prior-art nail puncture test, it has been difficult to measure the temperature at a short-circuiting portion, which is closely related to the scale of an accident which occurs. As a solution, A nail puncture test device having a temperature measurement function, a sheath thermocouple, and a fixing portion | 2012-05-31 |
20120134389 | PASSIVE WIRELESS CONNECTION - A wireless switch or sensor is provided that includes a radio frequency (RF) transponder including a narrowband receiver operable to generate power from a received narrowband RF signal and an ultra wideband (UWB) transmitter operable to transmit UWB pulses using the generated power. | 2012-05-31 |
20120134390 | CO-EXISTENCE OF NARROW-CHANNEL TRANSMITTER AND WIDE-CHANNEL RECEIVER - A narrow-channel transmitter in a dual-radio communication device reduces its bandwidth for the benefit of a wide-channel receiver in the dual-radio communication device. Narrow channels are marked as unavailable based on actual off-line adjacent channel rejection ‘ACR’ information that characterizes tolerance of the wide-channel receiver to adjacent channel interference ‘ACI’ caused by transmissions from the narrow-channel transmitter. | 2012-05-31 |
20120134391 | POWER DETECTION IN A SPREAD SPECTRUM SYSTEM - This disclosure relates to method, device and system for selecting a device for communication in a communication system. A node receives a spread signal from a first transmitter and a second transmitter. The node despreads the spread signal with a first spreading code into a first frame and determines a first receive signal strength indicator (RSSI) from the first frame. The node despreads the spread signal with a second spreading code into a second frame and determines a second RSSI from the second frame. The node selects an access point based in part on the first RSSI and the second RSSI. The node transmits an uplink signal to the access point based on a slot start time and a random timing offset. The node transmits while a portion of a second signal is transmitted from a second node such that both the uplink signal and the second signal are received. | 2012-05-31 |
20120134392 | CROSS CORRELATION DETERMINATION METHOD AND CROSS CORRELATION DETERMINATION DEVICE - A cross correlation determination method includes: executing a first decoding of decoding a navigation message included in a received satellite signal using a first replica code and a second decoding of decoding the navigation message using a second replica code; and determining the occurrence of a cross correlation using the result of the first decoding and the result of the second decoding. | 2012-05-31 |
20120134393 | Telecommunication Signaling Using Nonlinear Functions - One exemplary embodiment can describe a method for communicating. The method for communicating can include a step for identifying characteristics of a communications channel, a step for identifying a set of nonlinear functions used to generate waveforms, a step for assigning a unique numeric code to each waveform, a step for transmitting a numeric sequence as a series of waveforms, a step for receiving the series of waveforms, and a step for decoding the series of waveforms. | 2012-05-31 |
20120134394 | COMMUNICATING WITH A SELF-CLOCKING AMPLITUDE MODULATED SIGNAL - Examples disclosed herein provide for a method for transmitting a signal. The method includes generating a Manchester encoded data stream and combining the Manchester encoded data stream with an amplified clock signal to produce an amplitude modulated signal having a zero crossing at each edge of the amplified clock signal. The amplitude modulated signal can then be sent over a communication medium. | 2012-05-31 |
20120134395 | Power Line Communications (PLC) Across Different Voltage Domains Using Multiple Frequency Subbands - Systems and methods for implementing power line communications (PLC) across different voltage domains using multiple frequency subbands are described. From an end node's perspective (e.g., a PLC device), a method may include scanning a plurality of downlink subbands usable by a base node (e.g., a PLC router, etc.) to communicate with one or more PLC devices (e.g., other end nodes) from a medium voltage (MV) to a low voltage (LV) power line, and transmitting association request(s) to the base node that select and/or allow the base node to select one or more downlink subbands for use in subsequent communications. From the base node's perspective, the method may include selecting one or more of a plurality of uplink subbands for use in subsequent communications based on the received association request(s). In various implementations, the selection of downlink and/or uplink subbands may be based on signal-to-noise ratio (SNR) values and/or congestion indicators. | 2012-05-31 |
20120134396 | MULTIMODE MULTICARRIER MODE SYSTEM AND METHOD OF COMMUNICATION OVER THE SAME - An alternative approach to coping with the ever increasing demand for faster communications hardware is to design modems that are capable of operating its speeds at a higher data rate than a speed required for a single port of the standard communication rate for that modem. Basically, by utilizing a resource manager, that directs the data in and out of the various portions of the modem in an orderly manner, keeping track of which of the ports is being operated at any given point in time, a standard single port modem can be reconfigured, for example, at an over clocked rate, to manipulate the data input and output of a modem. | 2012-05-31 |
20120134397 | METHOD AND APPARATUS FOR DSL PERFORMANCE ENHANCEMENT IN A DSL NETWORK - A Digital Subscriber Line (DSL) Management Center (DMC) coupled to a DSL network includes a data collection module that receives information regarding the DSL network from a plurality of sources. An analysis module is coupled to the data collection module to analyze the received information and issue a command for one or more of a plurality of DSL performance enhancement devices to optimize their operation. A command signal generation module is coupled to the analysis module to receive the issued command from the analysis module and generate a corresponding command signal for transmission to one or more of the DSL performance enhancement devices. | 2012-05-31 |
20120134398 | FREQUENCY AND TIMING OFFSET ESTIMATION ALGORITHM FOR DTV (DVB-T2) RECEIVERS - According to various embodiments, a method is disclosed that includes a method is disclosed that includes determining, by a receiver, a frequency offset in a signal comprising a set of orthogonal frequency division multiplexed (OFDM) symbols by determining a first difference in phase angles between a n | 2012-05-31 |
20120134399 | Systems and Methods of Improved Power Amplifier Efficiency Through Adjustments in Crest Factor Reduction - Crest factor reduction algorithms described herein may be used to improve power amplifier efficiency during low signal power conditions compared to traditional static threshold techniques. Techniques described herein insure that the signal power level at the output of the crest fact reduction block is held constant relative to the input power level under all signal power level conditions. Two different solutions may be implemented together or separately to achieve the desired conditions. The first technique provides constant ratio between input power and output power. Constant ratio of peak and average output levels keeps the amount of crest factor reduction applied to the signal constant, irrespective of the signal power level. A second technique is to hold signal power level constant in respect to the amount of crest factor reduction applied. | 2012-05-31 |
20120134400 | Testing Device and Method for a Multiple-Input Multiple-Output Wireless Terminal - An apparatus and method for testing a multi-in multi-out (MIMO) wireless terminal are provided. In the apparatus, a MIMO transmission mode selecting unit includes: a mode selecting module, which is configured to select a MIMO downlink transmission mode currently requiring testing and trigger a corresponding MIMO downlink transmission module during the real-world over-the-air (OTA) test for the MIMO wireless terminal; and the downlink transmission module, which is configured to output downlink test signals which conform to the feature of the selected MIMO downlink transmission mode according to the triggering of the mode selecting module. The method includes: during the OTA test for the MEMO wireless terminal, selecting a MIMO downlink transmission mode currently requiring testing from multiple configured MIMO downlink transmission modes, and outputting downlink test signals that conform to the feature of the selected MIMO downlink transmission mode. | 2012-05-31 |
20120134401 | SYSTEM AND METHOD FOR CLOSED LOOP POWER CONTROL CALIBRATION - A system for calibrating a closed power control loop includes an adder configured to inject a test signal into an adjustable element, a first peak detector configured to determine an amplitude of the injected test signal, a second peak detector configured to determine an amplitude of a return test signal, a comparator configured to determine the difference between the injected test signal and the return test signal, and a calibration engine configured to adjust the adjustable element so that the return test signal is offset from the injected test signal by a predetermined amount. | 2012-05-31 |
20120134402 | CIRCUITS, SYSTEMS, AND METHODS FOR MANAGING AUTOMATIC GAIN CONTROL IN QUADRATURE SIGNAL PATHS OF A RECEIVER - A system provides closed-loop gain control in a WCDMA mode and open loop control in an EDGE/GSM mode. Gain control is distributed across analog devices and a digital scaler in a wireless receiver. In the WCDMA mode, a loop filter generates an error signal that is forwarded to analog and digital control paths. The analog control path includes a first adder, a programmable hysteresis element, and a lookup table. The analog control signal is responsive to thresholds, which when used in conjunction with a previous gain value determine a new gain value. The digital control path includes a second adder, a programmable delay element, and a converter. A control word is responsive to a difference of the error signal, a calibration value, and the analog control signal. Blocker detection is provided in the WCDMA mode of operation. A controller sets system parameters using a state machine. | 2012-05-31 |
20120134403 | CIRCUIT AND METHOD FOR ON-CHIP JITTER MEASUREMENT - Disclosed herein are embodiments of an improved built-in self-test (BIST) circuit and an associated method for measuring phase and/or cycle-to-cycle jitter of a clock signal. The embodiments of the BIST circuit implement a Variable Vernier Digital Delay Locked Line method. Specifically, the embodiments of the BIST circuit incorporate both a digital delay locked loop and a Vernier delay line, for respectively coarse tuning and fine tuning portions of the circuit. Additionally, the BIST circuit is variable, as the resolution of the circuit changes from chip to chip, and digital, as it is implemented with standard digital logic elements. | 2012-05-31 |
20120134404 | Symbol Synchronization for Communication - A communication system and method is disclosed that performs symbol boundary synchronization by generating a symbol alignment estimate from a partial signal correlation; and then refining the symbol alignment estimate via a carrier phase calculation. To generate the symbol alignment estimate, two methods are disclosed. After an estimate is determined, an embodiment provides for refining the symbol alignment estimate via a carrier phase calculation by determining a carrier phase of two adjacent carriers, determining a phase error as directly proportional to an offset from the start of a symbol, determining a phase difference contribution due to a communication channel and device hardware, and counter-rotating the determined carrier phase by an angle of a constellation point at a transmitter. | 2012-05-31 |
20120134405 | APPARATUS AND METHOD FOR MITIGATION OF RECEIVE POWER IMBALANCE ON EQUALIZER PERFORMANCE - An apparatus and method for mitigation of receive power imbalance including estimating input power levels on two diversity receive branches in a receiver; computing a power imbalance between the two diversity receive branches and determining a weaker receive branch; setting a weakRX parameter based on the weaker receive branch; computing an intercept parameter c | 2012-05-31 |
20120134406 | Communication System and Method for Cancelling Timing dependence of Signals - In a communication system, a timing-dependence cancelling module is included for cancelling timing-dependence of a transmission signal, so as to render a timing-dependent signal be capable of being utilized on communication systems. Besides, updating an echo cancelling parameter by applying an error difference variable and a data difference variable, or by directly decreasing a step-size coefficient, may also fulfill the purpose of reducing or eliminating timing dependence in a transmission signal of a communication system. | 2012-05-31 |
20120134407 | ADAPTIVE EQUALIZATION WITH GROUP DELAY - Methods, apparatuses, and systems are presented for performing adaptive equalization involving receiving a signal originating from a channel associated with inter-symbol interference, filtering the signal using a filter having a plurality of adjustable tap weights to produce a filtered signal, and adaptively updating each of the plurality of adjustable tap weights to a new value to reduce effects of inter-symbol interference, wherein each of the plurality of adjustable tap weights is adaptively updated to take into account a constraint relating to a measure of error in the filtered signal and a constraint relating to group delay associated with the filter. Each of the plurality of adjustable tap weights may be adaptively updated to drive group delay associated with the filter toward a target group delay. | 2012-05-31 |
20120134408 | CODING METHOD, DECODING METHOD, CODING APPARATUS, AND DECODING APPARATUS - A coding method comprises: transforming an input signal; scanning and quantizing coefficient values composing the transformed output signal; and entropy coding the quantized coefficients, wherein the transforming includes: generating a first transformed output signal by performing a first transform on the input signal using a first transform coefficient; and generating a second transformed output signal by performing, using a second transform coefficient, a second transform on a first partial signal which is a part of the first transformed output signal, and outputting the transformed output signal including the generated second transformed output signal and a second partial signal that is the remaining part of the first transformed output signal other than the first partial signal, and a signal corresponding to the second transformed output signal and a signal corresponding to the second partial signal are processed differently in at least one of the scanning, the quantizing, and the entropy coding. | 2012-05-31 |
20120134409 | EXPERIENCE OR "SENTIO" CODECS, AND METHODS AND SYSTEMS FOR IMPROVING QoE AND ENCODING BASED ON QoE EXPERIENCES - Certain embodiments teach a variety of experience or “sentio” codecs, and methods and systems for enabling an experience platform, as well as a Quality of Experience (QoS) engine which allows the sentio codec to select a suitable encoding engine or device. The sentio codec is capable of encoding and transmitting data streams that correspond to participant experiences with a variety of different dimensions and features. As will be appreciated, the following description provides one paradigm for understanding the multi-dimensional experience available to the participants, and as implemented utilizing a sentio codec. There are many suitable ways of describing, characterizing and implementing the sentio codec and experience platform contemplated herein. | 2012-05-31 |
20120134410 | IMAGE TRANSMISSION APPARATUS AND IMAGE RECEPTION APPARATUS - An image transmission apparatus may include a transmission unit that transmits a moving image compressed by lossy compression as first image data to an external apparatus through wireless communication, the transmission unit transmitting image data corresponding to one image in the moving image as second image data, the second image data being image data compressed at a lower compression rate than the lossy compression or not compressed, an instructing unit that outputs a disconnection signal to disconnect the wireless communication in response to an external manipulation, and a control unit that receives the disconnection signal from the instructing unit, the control unit controlling to disconnect the wireless communication in the transmission unit after the transmission of the second image data in the transmission unit has been completed. | 2012-05-31 |
20120134411 | APPARATUS FOR UPDATING SIDE INFORMATION ON MOTION VIDEO DATA BY DIFFERENT RULES BETWEEN DC AND AC COMPONENTS - In a data updating apparatus for updating first data having plural bits according to a predetermined data format, a detector detects a domain point at which the first data are different from second data including plural bits decoded by Slepian-Wolf decoding according to the predetermined data format. The first data is used for decoding encoded data on a non-key frame separated from a stream of frames by Slepian-Wolf decoding and transformed from a predictive frame associated with the non-key frame and generated from information on a key frame. A data updater updates a less significant bit in the first data than the domain point supplied from the detector according to a predetermined updating scheme. | 2012-05-31 |
20120134412 | ENCODING METHOD, DECODING METHOD, ENCODING DEVICE AND DECODING DEVICE - A coding method according to the present invention comprises: transforming an input signal to generate a transformed output signal; quantizing the transformed output signal to generate quantized coefficients; and entropy coding the quantized coefficients to generate a coded signal, wherein the transforming includes: generating a first transformed output signal by performing a first transform on the input signal using a first transform coefficient; and generating a second transformed output signal by performing, using a second transform coefficient, a second transform on a first partial signal which is a part of the first transformed output signal, and outputting the transformed output signal including (i) the generated second transformed output signal and (ii) a second partial signal which is the remaining part of the first transformed output signal other than the first partial signal. | 2012-05-31 |
20120134413 | SYSTEM AND METHOD OF FILTERING NOISE - A system and method of removing noise in a bitstream is disclosed. Based on segment classifications of a bitstream, each segment or portion is encoded with a different encoder associated with the portion model and chosen from a plurality of encoders. The coded bitstream for each segment includes information regarding which encoder was used to encode that segment. A circuit for removing noise in video content includes a first filter connected to a first input switch and a first output switch, the first filter being in parallel with a first pass-through line, a second filter connected to a second input switch and a second output switch, the second filter connected in parallel with a second pass-through line, and a third filter connected to a third input switch in a third output switch. | 2012-05-31 |
20120134414 | INTERPOLATION OF VIDEO COMPRESSION FRAMES - Coding techniques for a video image compression system involve improving an image quality of a sequence of two or more bi-directionally predicted intermediate frames, where each of the frames includes multiple pixels. One method involves determining a brightness value of at least one pixel of each bi-directionally predicted intermediate frame in the sequence as an equal average of brightness values of pixels in non-bidirectionally predicted frames bracketing the sequence of bi-directionally predicted intermediate frames. The brightness values of the pixels in at least one of the non-bidirectionally predicted frames is converted from a non-linear representation. | 2012-05-31 |
20120134415 | Method and Apparatus of Extended Motion Vector Predictor - A method and apparatus for determining a motion vector predictor (MVP) or a MVP candidate based on a MVP set are disclosed. In video coding systems, the spatial and temporal redundancy is exploited using spatial and temporal prediction to reduce the video data to be transmitted or stored. Motion vector prediction has been used to further conserve the bitrate associated with motion vector coding. Motion vector prediction technique being developed for the current high efficiency video coding (HEVC) only uses a MVP candidate set including spatial MVP candidates and a temporal candidate corresponding to the co-located block. In the current disclosure, the spatial and temporal motion vector predictor set is extended to include at least one spatially neighboring block associated with list 0 reference pictures and list 1 reference pictures, and co-located block and its neighboring block associated with list 0 reference pictures and list 1 reference pictures. | 2012-05-31 |
20120134416 | Method and Apparatus for Derivation of MV/MVP Candidate for Inter/Skip/Merge Modes - A method and apparatus for deriving a temporal motion vector predictor (MVP) are disclosed. The MVP is derived for a current block of a current picture in Inter, or Merge, or Skip mode based on co-located reference blocks of a co-located block. The co-located reference blocks comprise an above-left reference block of the bottom-right neighboring block of the co-located block. The reference motion vectors associated with the co-located reference blocks are received and used to derive the temporal MVP. Various configurations of co-located reference blocks can be used to practice the present invention. If the MVP cannot be found based on the above-left reference block, search for the MVP can be continued based on other co-located reference blocks. When an MVP is found, the MVP is checked against the previously found MVP. If the MVP is the same as the previously found MVP, the search for MVP continues. | 2012-05-31 |