17th week of 2010 patent applcation highlights part 30 |
Patent application number | Title | Published |
20100103897 | APPARATUS AND METHOD FOR ALLOCATING RESOURCE IN A WIRELESS COMMUNICATION SYSTEM USING OFDMA - An apparatus for allocating a resource in a wireless communication system using an orthogonal frequency division multiple access (OFDMA) scheme includes an analysis unit to analyze a signal received from a terminal over a channel to determine characteristics of the channel; an allocation unit to allocate a first frequency band to the terminal based on the characteristics of the channel; and a frequency hopping unit to perform frequency hopping from the first frequency band to a second frequency band after a first time period. A method for allocating the resource in an OFDMA wireless communication system includes analyzing a signal received from a terminal over a channel to determine characteristics of the channel, allocating a first frequency band to the terminal based on the characteristics of the channel, and performing frequency hopping from the first frequency band to a second frequency band after the first time period. | 2010-04-29 |
20100103898 | Communication Systems - A transmission method for use in a multi-hop wireless communication system is provided. The system includes a source apparatus, a destination apparatus and two or more intermediate apparatuses. The system has access to a time-frequency format for use in assigning available transmission frequency bandwidth during a discrete transmission interval, said format defining a plurality of transmission windows within such an interval. Each window occupies a different part of that interval and has a frequency bandwidth profile within said available transmission frequency bandwidth over its part of that interval. Each said window is assignable for such a transmission interval to one of said apparatuses for use in transmission. The method for use in this system includes employing said format for one or more such transmission intervals to transmit information along at least three consecutive said links as a set of successive transmission signals, link by link, each said signal being transmitted in an available transmission window of said interval(s) and at least two of said signals being transmitted during the same said transmission interval such that said information is transmitted along said consecutive links in fewer transmission intervals than said number of consecutive links. | 2010-04-29 |
20100103899 | Method and apparatus for signaling user equipment status information for uplink packet transmission in a soft handover region - A method and apparatus are provided for transmitting user equipment (UE) status information in communication with one serving Node B and at least one non-serving Node B in a mobile communication system. The method and apparatus comprise generating transport channel data including UE status information; transmitting the transport channel data to the serving Node B and the at least one non-serving Node B, receiving a response signal for the transport channel data from the serving Node B, and retransmitting the transport channel data if the response signal received from the serving Node B is a non-acknowledge (NACK) signal, and ending the retransmission of the transport channel data if the response signal received from the serving Node B is an acknowledge (ACK) signal. | 2010-04-29 |
20100103900 | BEAMFORMING METHOD AND DEVICE - The present invention relates to a beamforming device in an orthogonal frequency division multiplexing access system, and a method thereof. In the method, a switched beamforming algorithm is applied to perform downlink beamforming, and an adaptive beamforming algorithm is applied to perform uplink receiving beamforming. In addition, a half wavelength array antenna is used to simultaneously allocate the same resource to two terminals separately positioned in two different spaces, so as to support spatial division multiple access (SDMA). In this case, since a base station uses channel status information at transmitter (CSIT) for transmitting beamforming and receiving beamforming, the SDMA may be supported without obtaining additional channel status information at receiver (CSIR) when realizing the uplink receiving beamforming. | 2010-04-29 |
20100103901 | BASE STATION, COMMUNICATION TERMINAL, TRANSMISSION METHOD, AND RECEPTION METHOD - A base station includes a scheduler configured to perform frequency scheduling for each subframe; a control channel generating unit configured to generate a control channel including common control information to be mapped to radio resources distributed across a system frequency band and specific control information to be mapped to one or more resource blocks allocated to each selected user device; and a transmission signal generating unit configured to generate a transmission signal by time-division-multiplexing the common control information and the specific control information according to scheduling information from the scheduler. The common control information includes a format indicator representing one of preset options that indicates the number of symbols occupied by the common control information in one subframe. The common control information includes information units with a predetermined data size. The number of the information units is less than or equal to a specified multiplicity included in broadcast information. | 2010-04-29 |
20100103902 | METHOD OF TRANSMITTING SOUNDING REFERENCE SIGNAL - A method of transmitting a sounding reference signal (SRS) includes receiving SRS operation information including a sounding indicator, the sounding indicator indicating whether SRS transmission takes place at a subframe; generating the SRS according to the SRS operation information, and if the sounding indicator indicates occurrence of SRS transmission, transmitting the SRS at the subframe. Multiplexing can be achieved without collision between data and a sounding reference signal and single carrier characteristics required in uplink transmission can be preserved. | 2010-04-29 |
20100103903 | METHODS AND SYSTEMS FOR HANDOVER USING INCREASED PROBABLITY FOR FAST RANGING SUCCESS - Techniques presented herein disclose handover using increased probability of the fast ranging success. Propagation delay of the RF signal transmitted from an MS to a target BS may be estimated based on a known propagation delay to a current serving BS and a relative difference in propagation delays to the current serving BS and the target BS, for example, as indicated by different receive times of preamble sequences transmitted from the current serving BS and the target BS. | 2010-04-29 |
20100103904 | ENHANCED FORWARD LINK TRANSMISSION - A method for processing forward link channel signals generated by a CDMA base station includes time sharing by several mobile stations of spreading codes, which are orthogonal codes such as Walsh Code, and code-combining soft/softer handoff across sectors in the mobile station active set to increase dimensions on the CDMA2000 and WCDMA downlink while minimizing intra-sector interference. Since different parts of a packet or frame are transmitted to the user by the different base stations in the active set, earlier decoding and therefore early packet termination is enabled. | 2010-04-29 |
20100103905 | METHOD AND SYSTEM FOR SERVICE LINK HANDOVER - A method and a system for service link handover are provided. The method and the system are in a communication technical field. The method is as follows. Apply for service processing resources of a second service processing unit. A service link establishment message is sent to the second service processing unit, in which the message carries link address information of a first service node and a second service node, such that the second service processing unit binds link addresses of the first service node and the second service node. A response message from the second service processing unit is received, and a link handover indication message is sent to the first service node and the second service node, such that the first service node and the second service node hand over link connections to the second service processing unit. Thus, an efficiency of a rolling upgrade is improved and a service interruption possibly caused by the rolling upgrade is avoided when units in the same resource pool perform the rolling upgrade. | 2010-04-29 |
20100103906 | METHOD AND APPARATUS FOR CELL SEARCH IN AN ORTHOGONAL WIRELESS COMMUNICATION SYSTEM - Systems and methodologies are described that provide techniques for efficient cell search in a wireless communication system. In one aspect, a frequency reuse pattern can be generated by applying frequency shifts to reference signals transmitted from cells that provide coverage for a NodeB based on cell IDs or cell group IDs for the cells. The frequency shifts applied to reference signals can then be utilized as a basis for multiplexing reference signals from different cells using frequency division multiplexing (FDM) or a combination of FDM and other multiplexing techniques. Other adjustments to reference signals transmitted from respective cells, such as transmit power adjustments, can further be made to improve detection performance. | 2010-04-29 |
20100103907 | DEVICE AND METHOD FOR BIT-INTERWEAVING - To support the higher modulation (such as 64QAM) in HSPA+ downlink data channel whilst fully be compatible with the existing HSDPA system, a device and method for bit interleaving are disclosed to process bit interleaving of a HS-PDSCH channel in HSPA+ of the WCDMA system. | 2010-04-29 |
20100103908 | METHOD AND APPARATUS FOR EFFICIENT SHARING OF COMMUNICATION SYSTEM RESOURCES - A method for accessing a reverse channel for communication from a remote unit to a base station is disclosed. The method includes waiting a random period of time in response to determining that the reverse channel is available at a first time. The method also includes monitoring a forward channel after expiration of the random period of time to determine whether the reverse channel is available at a second time. The method further includes transmitting a first portion of data on the reverse channel in response to determining that the reverse channel is available at the second time. | 2010-04-29 |
20100103909 | DATA PACKET, SYSTEM AND METHOD FOR MULTIPLE NODES TRANSMITTING UNDER AD-HOC NETWORK ARCHITECTURE - A system and method are provided for multiple nodes to wirelessly transmit in an Ad-hoc network architecture. First of all, an integration module of the system integrates a multi-node transmission protocol into a reservation column of a data packet. Next, an initial node of the system transmits the integrated data packet. Afterwards, according to the multi-node transmission protocol, one or more bridge node of the system receives the integrated data packet transmitted from the initial node. And finally, according to the multi-node transmission protocol, a destination node of the system receives the integrated data packet transmitted from the bridge node. By means of the proposed system and method, data transmission between multiple nodes is achieved under the Ad-hoc network architecture. | 2010-04-29 |
20100103910 | SMART DEVICE PROFILING - Providing device profiles for devices attached to local ports of access nodes on a wireless network. A device connected to a local port of an access node on a wireless network, such as a USB, IEEE1394 or wired IEEE 802.3 Ethernet port, is identified and the identification information sent to the controller. The controller may send further queries to the access node to be executed in further identifying the device. The controller configures the appropriate profile for the device and sends the profile to the access node. The profile may contain access control information such as access control lists. | 2010-04-29 |
20100103911 | Apparatus and method providing an IEEE-802.16 self-organizing network - Systems and methods are disclosed that include a receiver configured to receive a command message a controller configured to interpret the command message. The controller is also configured to perform a scan according to the command message using the receiver. The controller can also transmit a report message based upon one or more parameters within the command message using a transmitter. In some systems and methods, the report message comprises information related to contention within the wireless network. | 2010-04-29 |
20100103912 | COMMUNICATION APPARATUS, COMMUNICATION APPARATUS CONTROL METHOD, AND COMPUTER PROGRAM FOR CAUSING COMPUTER TO EXECUTE THE CONTROL METHOD - In 80211.n, the time during which the band is occupied is prolonged by the use of the frame aggregation method or in accordance with the type of communication frame, and this may influence communication of another apparatus. To solve this problem, a communication frame length (a communication frame to be used and the number of frames to be aggregated) is determined by taking account of priority information of a plurality of communication apparatuses. | 2010-04-29 |
20100103913 | APPARATUS AND METHOD FOR DETERMINING CONTENTION WINDOW SIZE IN MULTI USER MIMO BASED WIRELESS LAN SYSTEM - A Multiple-Input Multiple-Output data transmission system includes access stations and an access point having multiple receive antennas. An access point has a minimum contention window size decision unit to determine a minimum contention window size based on the number of receive antennas and a number of access stations, a broadcasting unit to broadcast the determined minimum contention window size to the access stations, and a receiver to receive data from the access stations in a contention window that is calculated based on the minimum contention window size. An access station receives the minimum contention window size from the access point, determines a first contention window size based on the minimum contention window size, and transmits data to the access point within the first contention window. If the transmission fails, the access station determines a second contention window size and retransmits the data in the second contention window. | 2010-04-29 |
20100103914 | Wireless Transmission Method, Apparatus, And System - A wireless transmission method, performed in a second layer of a wireless LAN apparatus, for transmitting data from a first layer of the wireless LAN apparatus to a third layer of the wireless LAN apparatus, comprising steps of: retrieving information related to unacknowledged frames from the first layer; aggregating the unacknowledged frames into a data unit if a processing time of the retrieving and aggregating step is less than a short inter frame space corresponding to a transmission opportunity; and transmitting the data unit to the third layer in the transmission opportunity. | 2010-04-29 |
20100103915 | VIRTUAL STREAMS FOR QOS-DRIVEN WIRELESS LANS - A virtual stream (VS) in a basic service set (BSS) in a wireless local area network (WLAN) that exists solely within the medium access control (MAC) sublayer of the WLAN. The VS includes a unidirectional path in the wireless network between a station sourcing a quality of service (QoS) session and at least one station receiving the QoS session in the same BSS. The VS is defined by a VS identifier (VSID) that is unique within and local to the BSS, an address of the sourcing station, and an address of the at least one receiving station. The VS can be a virtual down-stream (VDS), a virtual up-stream (VUS) or a virtual side-stream (VSS). The VS can be a unitcast or a multicast VS. | 2010-04-29 |
20100103916 | RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION APPARATUS, AND RADIO COMMUNICATION METHOD - A radio communication system, a radio communication apparatus, and a radio communication method allow networks to operate without interference between contending networks. When plural piconets collide on the same frequency channel, a control station of one of the piconets temporarily sets a buffer super frame period to coexist between the piconets. When an apparatus other than a control station receives a beacon signal of the buffer super frame period, a shorter super frame period based on that super frame period is temporarily set to make fine adjustment of the next beacon signal transmission timing. An apparatus that has not received a beacon signal looks for a beacon signal of its own piconet for a redundant time to find a start time of a new super frame period. | 2010-04-29 |
20100103917 | System and Method for Synchronizing Phases and Frequencies of Devices in Multi-User, Wireless Communications Systems - A system and method for synchronizing the phases and frequencies of devices in multi-user, wireless communications systems are provided. A primary beacon signal is transmitted by a destination node in a wireless communications network to a plurality of source nodes. Secondary beacon signals are also exchanged between the source nodes. Using the primary and secondary beacon signals, the nodes generate local phase and frequency estimates which are used to control local phases and frequencies of the source nodes. The source nodes then transmit common information to the destination at carrier frequencies based on the estimated local frequencies and phases, so that the phases and frequencies of the transmitted information are synchronized to facilitate coherent combining of the bandpass signals at the destination. Phase and frequency synchronization can be applied to wireless communications systems having any number of source nodes, and effects of Doppler shifts and moving platforms are accounted for. Acoustic and radio-frequency signaling can be utilized. | 2010-04-29 |
20100103918 | Apparatus and method for transmitting/receiving data in human body communication system - An apparatus and a method for reducing wireless data transmission in a personal area network is configured to generate and transmit a packet including information discriminating between a synchronous channel and a data channel. The apparatus and method discriminate between the synchronous channel and data channel when receiving a packet in order to improve data transmission performance of a human body communication system. The apparatus and the method use a transmission channel whose frequency is lower than an antenna frequency as a synchronous channel, and use a transmission channel whose frequency is higher than the antenna frequency as a data channel. | 2010-04-29 |
20100103919 | RADIO COMMUNICATION METHOD AND RADIO COMMUNICATION DEVICE - When the SC-FDMA method is used in combination with the multi-antenna transmission technique, a radio transmission method effectively improves the frequency use efficiency by performing appropriate frequency allocation to a plurality of antennas while suppressing degradation of the reception quality caused by interference. In the radio transmission method of the SC-FDMA type, according to the number of terminals simultaneously accessing a base station within a usable frequency band, it is possible to allocate all the transmission signals (transmission stream) to be transmitted by different antennas to different frequency bands or to use the MIMO transmission in combination. Moreover, according to the number of terminals making an access, the number of terminals which perform the MIMO transmission can be varied. | 2010-04-29 |
20100103920 | COMMON AND DEDICATED MODULATION AND CODING SCHEME FOR A MULTICARRIER SYSTEM - A method, an apparatus, and a computer program product for wireless communication are provided in which at least one modulation and coding scheme (MCS) is determined based on feedback received for a plurality of downlink (DL) carriers and transmitted from a device. Data is modulated and coded, according to the at least one MCS, for transmission to the device on the DL carriers. | 2010-04-29 |
20100103921 | System and Method for Insertion of Time Stamp Into Real Time Data Within a Wireless Communications Network - A system for adding a time stamp to transmission traffic on a wireless network comprises a front end processor that receives a packet from the network and generates a Start Of Frame pulse and a LENGTH field corresponding to a length of the packet. A time stamp generator generates a time stamp by sampling the system master time counter. A synchronizer receives the SOF pulse and the LENGTH field from the front end processor, and generates a control signal. A multiplexer inputs the packet from the front end processor, the control signal and the time stamp, and outputs a modified packet with a field in the packet replaced by the time stamp. | 2010-04-29 |
20100103922 | IN-BAND TIME SYNCHRONIZATION TECHNIQUE - A communication system includes devices configured to communicate with each other via wireless communication by exchanging information in a sequence of time slots in frames. These time slots may be synchronized across the devices using distributed mutual synchronization in which each device exchanges time stamps in the frames with other devices to stabilize clock signals in the devices about a common frequency. Moreover, a time stamp in a given time slot may be generated by a transmitting device, which is transmitting in the given time slot, based on a clock signal in the transmitting device. | 2010-04-29 |
20100103923 | Content synchronisation for mobile communication network - The present invention provides for a method of forming RLC blocks for contents synchronisation within a mobile radio communications network and including the step of providing a control element for each of a plurality of SDUs within the said block, wherein each control element comprises a header element arranged to precede its respective SDU, and to the network device for providing the said blocks and to such blocks as having such a structure. | 2010-04-29 |
20100103924 | METHOD AND SYSTEM FOR WIRELESS MULTI-HOPPING COMMUNICATION | 2010-04-29 |
20100103925 | System, method, and apparatus to correlate a TCAP web service request to an application server session - A method includes encoding a session identifier into a uniform resource identifier (URI) associated with a TCAP Begin message request originating at an application server, where the session identifier identifies a communication session. The method also includes transmitting the TCAP Begin message request from the application server to a transaction capabilities application part (TCAP) interface and receiving a TCAP Continue message request from the TCAP interface with the TCAP Continue message request including the encoded URI. The method includes correlating the TCAP Continue message request to the communication session that originated the Begin request identified by the session identifier in the received URI and routing the TCAP Continue message request to the communication session. | 2010-04-29 |
20100103926 | COMMUNICATION APPARATUS AND SERVER, AND METHODS AND COMPUTER PROGRAMS THEREFORE - A communication apparatus enabled to communicate over at least one communication bearer is disclosed. The communication apparatus comprises a receiver arranged to receive an page message from a public land mobile network node, the page message being present when another party requests communication with the communication apparatus; and a connection controller arranged to establish a connection to the Internet over at least one of the communication bearers for providing an IP connection to the another party, and to send a notification over the established connection to the Internet to a page server managing the paging by the public land mobile network for enabling closing of the paging. Further, a page server connected to the Internet is disclosed. The page server comprises a connection request receiver arranged to receive a request from a first party requesting communication with a second party; an interface for communicating with a public land mobile network, wherein the interface is arranged to provide a page request to the public land mobile network, upon the received request from the first party, on provision of an page message; and a notification receiver arranged to receive a notification, over an established connection between the second party and the Internet, that the page message is received, wherein the interface is further arranged to provide a page release request, upon the reception of the notification, to the public land mobile network for closing of the paging. Methods and computer programs are also disclosed. | 2010-04-29 |
20100103927 | METHOD AND APPARATUS FOR INTERWORKING SIP COMMUNICATION WAITING WITH CIRCUIT SWITCHING AND PACKET SWITCHING NODES - A method and apparatus for interworking a session by a Mobile Switching Center (MSC) server enhanced for IP Multimedia Subsystem (IMS) Centralized Services (ICS), the method comprising receiving at the MSC an invite message and the MSC sending a setup message comprising an information element indicating a call waiting tone on when the invite message comprises a call waiting indication. | 2010-04-29 |
20100103928 | TELEPHONE OUTLET WITH PACKET TELEPHONY ADAPTER, AND A NETWORK USING SAME - An outlet for a Local Area Network (LAN), containing an integrated adapter that converts VoIP to and from analog telephony, and a standard telephone jack (e.g. RJ-11 in North America) for connecting an ordinary analog (POTS) telephone set. Such an outlet allows using analog telephone sets in a VoIP environment, eliminating the need for an IP telephone set or external adapter. The outlet may also include a hub that allows connecting both an analog telephone set via an adapter, as well as retaining the data network connection, which may be accessed by a network jack. The invention may also be applied to a telephone line-based data networking system. In such an environment, the data networking circuitry as well as the VoIP/POTS adapters are integrated into a telephone outlet, providing for regular analog service, VoIP telephony service using an analog telephone set, and data networking as well. In such a configuration, the outlet requires two standard telephone jacks and a data-networking jack. Outlets according to the invention can be used to retrofit existing LAN and in-building telephone wiring, as well as original equipment in new installation. | 2010-04-29 |
20100103929 | METHOD, APPARATUS, AND SYSTEM FOR AUTOMATIC DATA ALIGNER FOR MULTIPLE SERIAL RECEIVERS - A method, apparatus and system for employing an automatic data aligner for multiple serial receivers in serial link technologies is provided. In one embodiment, converting a transmission data path of a single bit into a parallel bit via a data aligner, wherein the data is being transmitted via one or more ports. Further, binding data transmission channels to reduce latency in transmission of the data, wherein the binding of the data transmission channels further includes inserting delay to match latency via the one or more ports. | 2010-04-29 |
20100103930 | METHOD FOR GENERATING AND IDENTIFYING IDENTIFIER AND COMMUNICATION SYSTEM - A method for generating and identifying an identifier and a communication system are provided. In the method, a subclass of a port in a packet is retrieved. In addition, the subclass of the port serves as a part of the identifier. A first device transmits the packet to a second device according to the identifier. | 2010-04-29 |
20100103931 | COMMUNICATION APPARATUS, COMMUNICATION CONTROL METHOD AND COMPUTER-READABLE STORAGE MEDIUM - A local communication apparatus for communicating with another apparatus via a relay apparatus receives communication interface information that has been transmitted by the other apparatus, acquires information relating to the communication rate of the local apparatus, compares the received communication interface information with the acquired information relating to the communication rate of the local apparatus, and switches over a connection-destination relay apparatus based upon result of the comparison. | 2010-04-29 |
20100103932 | DATA DISTRIBUTION APPARATUS, RELAY APPARATUS AND DATA DISTRIBUTION METHOD - A distribution apparatus includes a packet divider which divides contents data into multiple contents data and packetizing each of the divided contents data to generate a transfer packet. A priority degree setter assigns a phase to each transfer packet generated by the packet divider according to each position in contents data and sets, for each transfer packet to which the phase has been assigned, a priority degree indicating the degree of priority of being transmitted to a transmission destination. A packet transmitter transmits the transfer packets to which the priority degrees have been set by the priority degree setter, beginning with the top of the contents data. A phase controller, when one round of transmission of all the transfer packets by the packet transmitter ends, performs control so that the phase assigned to each of the transfer packets is changed. | 2010-04-29 |
20100103933 | NETWORK RELAY APPARATUS - The network relay apparatus includes: a plurality of distributed processing units configured to receive and send a packet from and to an external device; an integrated processing unit connected with the plurality of distributed processing units; and a mode selector configured to change over a processing mode of the network relay apparatus between a distributed processing mode and an integrated processing mode, based on at least either one of a load applied to the network relay apparatus and a packet type determined according to header information of the received packet. | 2010-04-29 |
20100103934 | METHOD, SYSTEM AND APPARATUS FOR ADMISSION CONTROL OF MULTICAST OR UNICAST - The embodiment of this invention discloses a method, a system and an apparatus for admission control of multicast or unicast. The method for admission control of multicast comprises: a network device receives a multicast request and executes admission control operation of multicast resources according to the multicast request; when multicast resources are not sufficient, the network device sends an outer resources request to a resources admission control device, and executes multicast operation according to the results of admission control operation returned by the resources admission control device responsive to said outer resources request. The method for admission control of unicast comprises: a resources admission control device receives a unicast resources request and executes admission control operation of unicast resources according to the unicast resources request; when the unicast resources are not sufficient, the resources admission control device sends an outer resources request to a network device; the resources admission control device executes unicast operation according to the results of admission control operation returned by the network device responsive to said outer resources request. The embodiment of this invention guarantees fast handoff of multicast service channel in the case of implementing resources share of multicast services and unicast services, and the implementation is simple. | 2010-04-29 |
20100103935 | USING A CACHE OF OUTGOING PACKET IDENTIFIERS TO RECOVER FROM A PROTOCOL ERROR IN GTP-U - A process of using a cache of outgoing packet identifiers to recover from a protocol error includes assigning a receive identifier associated with a user entity to a traffic stream at a receive node. The receive identifier is sent to a transmit node. The transmit node is instructed to associate the receive identifier with a receive plurality of data packets of the traffic stream. The transmit identifier associated with the user entity is assigned to the traffic stream at the transmit node. The transmit node identifier, the receive node identifier, and the address of the receive node are stored in a transmit cache at the transmit node for each of the receive plurality of data packets. The receive plurality of data packets is sent from the transmit node to the receive node. An error message is received at the transmit node from the receive node, indicating that the receive identifier was not recognized. The transmit cache is searched for the transmit node identifier using the receive node identifier and the address of the receive node. The user entity associated with the transmit node identifier is identified, and the user entity is removed. | 2010-04-29 |
20100103936 | Self-configuration of a forwarding table in an access node - The present invention relates to an access node ( | 2010-04-29 |
20100103937 | SYSTEM FOR UTILIZING GENETIC ALGORITHM TO PROVIDE CONSTRAINT-BASED ROUTING OF PACKETS IN A COMMUNICATION NETWORK - A Path Generator connects to a communication network and uses genetic algorithms to assign flows to paths. Genotypes encode flow to path assignments for working and protection paths. Genotype fitness functions are computed as a weighted sum of constraint fitness functions. Each constraint fitness function evaluates the degrees to which the genotype is a satisfactory solution. The system can be used for network modeling. It can also receive requests for on-demand assignment of flows and on-demand rerouting of flows. | 2010-04-29 |
20100103938 | Context Sharing Between A Streaming Processing Unit (SPU) and A Packet Management Unit (PMU) In A Packet Processing Environment - A context-selection mechanism is provided for selecting a best context from a pool of contexts for processing a data packet. The context selection mechanism comprises, an interface for communicating with a multi-streaming processor; circuitry for computing input data into a result value according to logic rule and for selecting a context based on the computed value and a loading mechanism for preloading the packet information into the selected context for subsequent processing. The computation of the input data functions to enable identification and selection of a best context for processing a data packet according to the logic rule at the instant time such that a multitude of subsequent context selections over a period of time acts to balance load pressure on functional units housed within the multi-streaming processor and required for packet processing. In preferred aspects, programmable singular or multiple predictive rules of logic are utilized in the selection process. | 2010-04-29 |
20100103939 | DETERMINING THE CONFIGURATION OF AN ETHERNET FABRIC - A Fibre Channel over Ethernet (FCoE) device obtains knowledge of the configuration of an attached Ethernet fabric during a fabric initialization or login (FLOGI) process. FCoE N_Ports obtain similar information during the port initialization or login (PLOGI) process. The FCoE device may provide network management services to attached FCoE devices. Embodiments include a management module or processor within an FCoE N_Port. The management module or processor receives information associated with an Ethernet fabric from the FCoE N_Ports and provides management services based on the information associated with the Ethernet fabric. The FCoE N_Port communicatively couples to at least one additional FCoE N_Port through the Ethernet fabric. The FCoE N_Ports may be implemented within a disc storage drive, a host bus adapter, and/or an FCoE switch. The capability of an N_Port to obtain this information allows a management module or processor at the N_Port to manage the Ethernet fabric. | 2010-04-29 |
20100103940 | Rapid Dissemination of Bulk Information to Widely Dispersed Network Nodes - Bulk information is transferred to nodes in a communication network having a plurality of widely dispersed nodes. The information can be an image, content, or configuration information. The information is uni-cast to a selection of nodes by a central node or server, to seed the information at certain nodes in the network. The information is then distributed by these seed nodes to every other node in the network. A first algorithm selects which nodes should be seeded with information by the central node. A second algorithm distributes information in the network on a query basis. | 2010-04-29 |
20100103941 | Data Collection from CPE Devices on a Remote LAN - Methods, systems, and computer-readable media for collecting data from CPE devices located on a remote LAN are provided. Communication is established over a WAN with a gateway attached to the LAN. The gateway is then used to enumerate the CPE devices on the LAN. A firewall pinhole is created in the gateway for each CPE device on the LAN, and communication is established through the pinholes to the CPE devices to collect the desired data. | 2010-04-29 |
20100103942 | LABEL SWITCHED PATH NETWORKING - A network arranged to implement label switched paths, comprising: an ingress label edge router (LER), atleast one label switching router (LSR), and an egress LER, in which the ingress LER is connected to the egress LER via one or more of the LSRs. In said network the ingress LER is arranged to transmit, in use, a path message for setting up a bidirectional label switched path (LSP) from the ingress LER to the egress LER via at least one LSR in response for a request for such an LSP. The path message is transmitted over the path of the LSP to be created, in which the path message comprises a first parameter indicative of the bandwidth to be assigned to data traversing the LSP in a first, downstream, direction from ingress LER to egress LER and a second parameter indicative of the bandwidth to be assigned to data traversing the LSP in an opposite, upstream, direction, in which the upstream and downstream bandwidths are different. | 2010-04-29 |
20100103943 | METHODS AND APPARATUS TO PROVIDE POWER OVER AN ETHERNET-BASED NETWORK TO A WIDE AREA NETWORK ACCESS DEVICE - Methods and apparatus to provide power over an Ethernet-based network to a wide area network access device are described. In some example systems, a local area network (LAN) access point is configured to provide power to a gateway device, such as an optical network termination (ONT), via a wired Ethernet connection. The example LAN access points provide power via a wide area network (WAN) Ethernet port, through which the LAN access points receive WAN access from a gateway. The example gateway provides WAN access to a LAN access point, and receives power sufficient to operate the gateway via an Ethernet port. The example gateway also includes a WAN port, such as a fiber connection, through which the gateway connects to a service provider. The example systems allow a gateway to be powered without a traditional dedicated power connection. | 2010-04-29 |
20100103944 | ETHERNET WIDE AREA NETWORKS AND METHODS - Ethernet wide area networks and methods are disclosed. A disclosed example Ethernet wide area network includes a first network Ethernet switch having a first network interface and a first service interface. The first service interface is to communicate with a first local area Ethernet switch. The network also includes a second network Ethernet switch having a second network interface and a second service interface. The second service interface is to communicate with the second local area Ethernet switch. The network also includes a root node network Ethernet switch having a third network interface to communicate with the first network interface with the first network Ethernet switch and a fourth network interface to communicate with the second network interface of the second network Ethernet switch. The first, second, third and fourth network interfaces are to route packets from the first local area Ethernet switch to the second local area Ethernet switch without recognizing subscriber LAN MAC addresses associated with either the first or second local area Ethernet switches. | 2010-04-29 |
20100103945 | Control architecture and implementation for switches with carrier sensing - A scalable switch, a system of switches and methods, configured to sense a carrier at the output of the respective switch. The invention intelligently, and dynamically, controls the connection of a respective switch input to a respective switch output as a function of a carrier being present, or absent, at a selected output. Alternatively, a control plane is adopted to make request to send and acknowledge clearance to send. These control methods operate on a step-by-step manner allowing fast and parallel connectivity to be established to connect a variety of interfaces, including Ethernet, PCI, SCSI, and FibreChannels. The present invention reduces switch cost, energy cost, and switch volume, while allowing scalability of connection requirements, reduction of delay, and promotion of green IT. | 2010-04-29 |
20100103946 | PACKET CAPTURING DEVICE - A next sequence number, which is a sequence number that a next packet should have, is compared with the sequence number of a current packet, an identifier of a previous packet is compared with the identifier of the current packet, and a delay is judged to be a simple delay when the next sequence number matches the sequence number of the current packet and the identifier of the previous packet is followed by the identifier of the current packet. Or the delay is judged to be caused by a retransmission when the identifier of the previous packet is not followed by the identifier of the current packet. | 2010-04-29 |
20100103947 | DISTRIBUTED DIGITAL SUBSCRIBER LINE ACCESS MULTIPLEXERS TO INCREASE BANDWIDTH IN ACCESS NETWORKS - Example distributed DSLAMs to increase bandwidth in access networks are disclosed. An example DSLAM comprises a first distribution cable segment to couple an SAI to a first pedestal and to transport user data, a second distribution cable segment to couple the first pedestal to a second pedestal and to transport a first portion of the user data from the first pedestal to the second pedestal, the second cable segment comprising a pair of DSL-based signals bonded together, a drop cable to couple the first pedestal to a customer premises and to transport a second portion of the user data to the customer premises, and a switch at the first pedestal to route the first portion of the user data between the first and second cable segments and to route the second portion of the user data between the first cable segment and the drop cable. | 2010-04-29 |
20100103948 | BACKUP TRANSMISSION STRUCTURE OF ELECTRONIC DEVICE - A backup transmission structure of an electronic device includes a switching unit, and primary and backup transmission circuits connected to host and terminal equipment respectively. The primary and backup transmission circuits include first and second switches respectively. The switching unit normally outputs an ON signal to the first switch to connect the primary transmission circuit for an electric connection of the host and terminal equipment. The primary transmission circuit obtains a circuit disable signal to switch outputting the ON signal to the second switch for electrically connecting the backup transmission circuit, so as to maintain an electric connection between the host equipment and the terminal equipment, and improve the stability of signal transmissions between the host equipment and the terminal equipment to overcome the shortcomings of the prior art adopting a host equipment that uses a single transmission circuit to connect terminal equipment in series and resulting in frequent breakdowns. | 2010-04-29 |
20100103949 | METHOD OF ALLOCATING REFERENCE SIGNALS IN MIMO SYSTEM - There is provided a method of allocating reference signals in a multiple-input multiple-output (MIMO) system. The method includes allocating a first reference signal, a second reference signal and a third reference signal in a first OFDM symbol so that the first reference signal, the second reference signal and the third reference signal do not overlap with each other and allocating the first reference signal, the second reference signal and a fourth reference signal in a second OFDM symbol so that the first reference signal, the second reference signal and the fourth reference signal do not overlap with each other. The first reference signal and the second signal are allocated in a regular intervals in a single OFDM symbol. | 2010-04-29 |
20100103950 | WAY OF BANDWIDTH EFFICIENT DISTRIBUTION OF MULTIPLE TRANSPORT STREAMS WITH PARTIALLY SAME CONTENT - A method of bandwidth efficient distribution of multiple transport streams with partially the same content solves the centralized way of distribution of multiple transport streams with partially the same set of TV, radio programs, with the distribution network having significant bandwidth reduction, presenting network adapter to other layers. | 2010-04-29 |
20100103951 | Adjusting Link Layer Control Frame to Facilitate Data Throughput - A base station subsystem includes logic to change the modulation and coding scheme for radio communications, and logic to communicate with a switching GSM to cause a change in link layer control frame size to reflect the change in modulation and coding scheme. | 2010-04-29 |
20100103952 | Method, device, and system for data communication with preamble for reduced switching noise - A data communication device or system includes a preamble unit and a data interface. The preamble unit generates or detects a first preamble having a first length for a first data line, and generates or detects a second preamble having a second length for a second data line. The first length is different from the second length, and data on the first and second data lines form parallel data. The data interface communicates a first data with the first preamble via the first data line and communicates a second data with the second preamble via the second data line. The respective length and/or respective pattern of each preamble are adjustable and/or programmable. | 2010-04-29 |
20100103953 | METHOD, APPARATUS AND COMPUTER-READABLE CODE FOR DATA COMPRESSION OF NETWORK PACKETS - Methods, apparatus and computer readable code for compression, encoding and decoding of units of data such as packets are disclosed. In some embodiments, methods, apparatus and computer readable code for transmitting and/or receiving the data packets (for example, transmitting from a sending location to a receiving location where packets are received) are provided. For at least some packets, a dictionary is determined from a respective group of packets, including a first set of historical packets and excluding a second set of historical packet. Each target packet is encoded and/or compressed and/or decoded using the respective dictionary. Optionally, the respective group of packet includes the actual target packet to be encoded and/or compressed and/or decoded. In some embodiments, respective group of packets from which the dictionary is determined includes packets that have not been acknowledged from the receiving location at the time of encoding, though embodiments where packets have been acknowledged are also disclosed. | 2010-04-29 |
20100103954 | Multiple Infiniband Ports Within A Higher Data Rate Port Using Multiplexing - In particular embodiments, there are provided methods and apparatus including receiving one or more Infiniband signal streams, de-serializing the received one or more Infiniband signal streams to generate a corresponding one or more parallel data streams, de-serializing further including selectively adding or deleting a control symbol associated with a quiescent period of the one or more received signal streams, time-division multiplexing the generated one or more parallel data streams, and serializing the time division multiplexed one or more parallel data streams. | 2010-04-29 |
20100103955 | POWER MANAGEMENT OF A NETWORK DEVICE - In one embodiment, a method includes receiving a synchronization command to synchronize time information among each component of a set of components in a communication path. The method includes generating a power state message. The method includes transmitting the power state message, by the first component, to the remaining components in the communication path. The power state message is configured to reduce the power consumption of the remaining components of the set of components from a first power amount to a second power amount for a time period and the time period is associated with the synchronized time information. | 2010-04-29 |
20100103956 | Synchronised control method of a plurality of formatting equipment and stream formatting equipment - The present invention relates to the domain of control methods of a plurality of formatting equipment (FE | 2010-04-29 |
20100103957 | FRACTIONAL RAMAN ORDER PUMPING IN OPTICAL COMMUNICATION SYSTEMS - An optical communication system includes a gain medium that receives optical signal(s) of one or more optical signal wavelengths. The system also includes pump source(s) that are capable of generating at least a first pump signal and a second pump signal. The first pump signal includes at least one integer Raman order wavelength that includes a Raman gain peak that is one stokes shift away from at least one of the one or more optical signal wavelengths. The second pump signal includes at least one fractional Raman order pump wavelength that includes a Raman gain peak that is a non-integer multiple of a stokes shift from each of the one or more optical signal wavelengths. Optionally, there might be one or more other pump signals that do not satisfy the criteria specified for the first pump signal or the second pump signal. | 2010-04-29 |
20100103958 | OPTICAL FIBER WITH MULTI SECTION CORE - An optical fiber comprising a core region embedded within a cladding. The core region of the optical fiber further comprises multiple sections, each doped with rare earth ions. The sections of the core region may be doped with different rare-earth ions or with different doping concentrations. The sections of the core region may also be made from different types of glass hosts. The optical fiber may further include multiple core regions embedded within the cladding, each core region having multiple sections doped with rare earth ions. | 2010-04-29 |
20100103959 | Selectively Pumping A Gain-Doped Region Of An Optical Fiber - The present disclosure provides an approach to more efficiently amplify signals by matching either the gain materials or the pump profile with the signal profile for a higher-order mode (HOM) signal. By doing so, more efficient energy extraction is achieved. | 2010-04-29 |
20100103960 | MODE LOCKED LASER DEVICE - There is provided a mode locked laser device including: a cavity, the cavity having a semiconductor saturable absorbing mirror and a negative dispersion mirror that controls group velocity dispersion within the cavity, disposed in a straight line; a solid-state laser medium, disposed in the cavity and outputting oscillating light due to excitation light being incident thereon; an excitation unit that causes the excitation light to be incident on the solid-state laser medium; and a cavity holder, the light incident face of the semiconductor saturable absorbing mirror attached to one end of the cavity holder, the negative dispersion mirror attached to the other end of the cavity holder, and the cavity holder integrally supporting the semiconductor saturable absorbing mirror and the negative dispersion mirror. | 2010-04-29 |
20100103961 | MODE-LOCKED LASER DEVICE, ULTRASHORT PULSE LIGHT SOURCE DEVICE, BROAD BANDWIDTH LIGHT SOURCE DEVICE, NON-LINEAR OPTICAL MICROSCOPY DEVICE, RECORDING DEVICE AND OPTICAL COHERENCE TOMOGRAPHY DEVICE - There is provided a mode-locked laser device including: a resonator; a solid-state laser medium that is disposed in the resonator and outputs oscillation light in accordance with the incidence of excitation light; a saturable absorber that is disposed in the resonator and induces soliton mode-locking; a group velocity dispersion correction component that is disposed in the resonator and controls group velocity dispersion in the resonator; and an excitation portion that causes excitation light to be incident at the solid-state laser medium, wherein a resonator length of the resonator is at least a resonator length with which soliton mode-locking is inducible and is less than a resonator length with which non-soliton mode-locking is inducible. | 2010-04-29 |
20100103962 | LIGHT SOURCE DEVICE, OBSERVATION DEVICE, AND PROCESSING DEVICE - A light source device | 2010-04-29 |
20100103963 | Wavelength Tunable Semiconductor Laser Device, Controller for the Same, and Control Method for the Same - An object is to provide a wavelength tunable semiconductor laser device, a controller for the same and a control method for the same, which prevent wavelength drifts. The wavelength tunable semiconductor laser device includes an active region for oscillating a laser beam, and a wavelength tuning region for shifting a wavelength of the laser beam. In this device, a thermal compensation region for converting most of the inputted electric power to heat is provided adjacent to the wavelength tuning region, and the sum of an electric power inputted into the wavelength tuning region and an electric power inputted into the thermal compensation region is always kept constant. | 2010-04-29 |
20100103964 | Tunable Laser - A tunable laser includes an optical gain medium, a first resonator, a periodically tunable optical filter, and a second resonator in which light of a laser wavelength exhibits a round trip time T. The optical filter is arranged between the first resonator and the second resonator and is tuned with a period t. The period t is governed by t=(n/m) T, where n and m are integers and m/n is not an integer. | 2010-04-29 |
20100103965 | Light Source Device - A first light source device using a transition element-doped optical waveguide as a light emitter, which is characterized in that a light output end and an excitation light source to excite the transition element-doped optical waveguide are connected to one end of the transition element-doped optical waveguide through an optocoupler and a reflector is connected to the other end of the transition element-doped optical waveguide through a variable attenuator, thereby changing a coherence length of light that is output from the light output end, is provided. | 2010-04-29 |
20100103966 | WAVELENGTH CONVERSION LASER, IMAGE DISPLAY DEVICE AND LASER PROCESSING DEVICE - A wavelength conversion laser is provided with a pair of fundamental wave reflecting surfaces for reflecting a fundamental wave to define a plurality of fundamental wave paths passing a wavelength conversion element at different angles, and a control unit for controlling wavelength conversion efficiencies so that the wavelength conversion efficiency on a specific one of the plurality of fundamental wave paths extending in different directions between the pair of fundamental wave reflecting surfaces is highest. | 2010-04-29 |
20100103967 | CORRECTION OF POWER VARIATIONS IN LASER SOURCES - The present invention relates generally to semiconductor lasers and laser projection systems. According to one embodiment of the present invention, a method of correcting output power variations in a semiconductor laser is provided. According to the method, an output power feedback loop is utilized to generate optical intensity feedback signals representing actual output power of the laser source for discrete portions V | 2010-04-29 |
20100103968 | BAR-SHAPED SEMICONDUCTOR LASER CHIP AND METHOD OF FABRICATION THEREOF - A bar-shaped semiconductor laser chip that can hold down a variation in oscillation wavelength is provided. The bar-shaped semiconductor laser chip has a nitride semiconductor substrate and a semiconductor layer formed on the main surface of the nitride semiconductor substrate and including a plurality of laser chip portions. The plurality of laser chip portions are arrayed in the [11-20] direction. The main surface of the nitride semiconductor substrate is a (0001) plane having an off-angle in the direction along the [11-20] direction. The central part of the main surface of the nitride semiconductor substrate has an off-angle of 0.05±0.1 degrees from the (0001) plane in the direction along the [11-20] direction. | 2010-04-29 |
20100103969 | VERTICAL CAVITY SURFACE EMITTING LASER STRUCTURE - A VCSEL (Vertical Cavity Surface Emitting Laser) structure ( | 2010-04-29 |
20100103970 | SEMICONDUCTOR LASER DEVICE - A semiconductor laser device includes: an n-type cladding layer, a p-type cladding layer, an active layer located between the n-type cladding layer and the p-type cladding layer, an n-side guiding layer located on the same side of the active layer as the n-type cladding layer, and a p-side guiding layer located on the same side of the active layer as the p-type cladding layer. The n-side guiding layer, the active layer, and the p-side guiding layer are undoped or substantially undoped. The sum of the thicknesses of the n-side guiding layer, the active layer, and the p-side guiding layer is not less than 0.5 times the lasing wavelength of the semiconductor laser device and is not more than 2 μm. The p-side guiding layer is thinner and has a lower refractive index than the n-side guiding layer. | 2010-04-29 |
20100103971 | Optical bandwidth enhancement of light emitting and lasing transistor devices and circuits - A method for producing wide bandwidth laser emission responsive to high frequency electrical input signals, including the following steps: providing a heterojunction bipolar transistor device having collector, base, and emitter regions; providing at least one quantum size region in the base region, and enclosing at least a portion of the base region in an optical resonant cavity; coupling electrical signals, including the high frequency electrical input signals, with respect to the collector, base and emitter region, to cause laser emission from the transistor device; and reducing the operating beta of the transistor laser device to enhance the optical bandwidth of the laser emission in response to the high frequency electrical signals. | 2010-04-29 |
20100103972 | PHOTONIC CRYSTAL LASER AND METHOD OF MANUFACTURING PHOTONIC CRYSTAL LASER - A photonic crystal laser comprises an n-type substrate, an n-type clad layer, an active layer, a p-type clad layer, a photonic crystal layer, a p-type electrode, an n-type electrode and a package member. The n-type clad layer is formed on a first surface of the n-type substrate. The active layer is formed on the n-type clad layer. The p-type clad layer is formed on the active layer. The photonic crystal layer is formed between the n-type clad layer and the active layer or between the active layer and the p-type clad layer, and includes a photonic crystal portion. The p-type electrode is formed on the photonic crystal portion. The n-type electrode is formed on a second surface, and includes a light-transmitting portion arranged on a position opposed to the photonic crystal portion and an outer peripheral portion having lower light transmittance than the light-transmitting portion. | 2010-04-29 |
20100103973 | INTERLEAVING LASER BEAMS - A laser system includes at least two sources configured to provide at least two spatially separated laser beams, and a mount configured to mount the at least two sources along an arc, the arc defining an angular coordinate and a radial coordinate, wherein an axial coordinate is orthogonal to the angular coordinate and the radial coordinate, and the spatially separated laser beams are separated in the axial coordinate. The mount is further configured to mount the at least two sources providing thereby an offset of the laser beams in the axial coordinate such that the laser beams interleave in the axial direction at a center region of the arc. | 2010-04-29 |
20100103974 | THERMAL DISTORTION COMPENSATION FOR LASER MIRRORS - A laser mirror assembly is disclosed with improved pointing stability. An elongated mirror includes a concave reflecting portion. A pair of elongated planar portions extend parallel to the concave reflecting portion on either side thereof. The planar portions are stepped down from the reflecting portion. The mirror is formed from copper. A pair of stainless steel strips are connected to planar portions. The bimetallic effect between the copper mirror and the stainless steel strips operates to counteract the warping of the mirror due to differential heating effects which arise during operation. In an alternate embodiment, a pair of aluminum strips are mounted on the rear surface of the mirror. | 2010-04-29 |
20100103975 | CALIBRATION APPARATUS - A calibration apparatus for temperature probes comprising an elongate calibration chamber ( | 2010-04-29 |
20100103976 | INFRARED TARGET TEMPERATURE CORRECTION SYSTEM AND METHOD - Infrared IR thermometer calibration systems and methods are disclosed in which the temperature of an IR thermometer calibration system is controlled such that radiation emitted by a target at a given input temperature is equal to the radiation emitted by a graybody heated to the input temperature and having an emissivity equal to an emissivity setting of an IR thermometer to be calibrated using the IR thermometer calibration system. | 2010-04-29 |
20100103977 | METHOD OF ANALYZING THERMAL STRESS ACCORDING TO FILLING FACTOR OF FILLER IN RESIN - A method of analyzing thermal stress includes calculating a distribution of the number of fillers in a composite integrally molded product by using physical property values of resin material containing fillers, and determining a coefficient of linear expansion of the resin material in the composite integrally molded product, that is used as an input condition of a thermal stress analysis, based on the distribution of the number of the fillers. | 2010-04-29 |
20100103978 | PURE SILICA CORE MULTIMODE FIBER SENSOES FOR DTS APPICATIONS - A new step-index multimode pure silica core fiber for DTS (Distributed Temperature Sensing) system particularly useful for downhole environments is disclosed and described. The new sensor system provides optimum tradeoffs between coupling power, spatial resolution, and temperature resolution. | 2010-04-29 |
20100103979 | PDM OUTPUT TEMPERATURE SENSOR - To provide a PDM output temperature sensor, which is reduced in area and consumption power, provided is a PDM output temperature sensor which includes no reference voltage circuit, thereby having a smaller area and consuming less power correspondingly. | 2010-04-29 |
20100103980 | Robust Low-Frequency Spread-Spectrum Navigation System - Methods and apparatus are described for a navigation system. A process includes providing a plurality of transmitters distributed throughout a desired coverage area; locking the plurality of transmitters to a common timing reference; transmitting a signal from each of the plurality of transmitters. An apparatus includes a plurality of transmitters distributed throughout a desired coverage area; wherein each of the plurality of transmitters comprises a packet generator; and wherein the plurality of transmitters are locked to a common timing reference. | 2010-04-29 |
20100103981 | RADIO NETWORK LIST FOR VEHICLE CONTROL AND REAL TIME POSITION DATA - One embodiment of the present invention relates to systems and methods for providing vehicles including construction machines and work vessels at a work site including construction work sites and naval work sites with real time position data from survey units located at the construction work site. In particular, a method according to the present invention includes the steps of accessing a network list identifying vehicles within the site; identifying, by using the network list, a vehicle requiring position data; and initiating a radio communication session with an identified vehicle during which the vehicle is provided with real time position data. | 2010-04-29 |
20100103982 | Robust Low-Frequency Spread-Spectrum Navigation System - Methods and apparatus are described for a navigation system. A process includes providing a plurality of transmitters distributed throughout a desired coverage area; locking the plurality of transmitters to a common timing reference; transmitting a signal from each of the plurality of transmitters. An apparatus includes a plurality of transmitters distributed throughout a desired coverage area; wherein each of the plurality of transmitters comprises a packet generator; and wherein the plurality of transmitters are locked to a common timing reference. | 2010-04-29 |
20100103983 | ROOT SPREADING CODE BASED ASSIGNMENT FOR HSDPA - A base station is described herein that uses a root spreading code based code assignment to transmit signals to a mobile station. The mobile station can then suppress intra-block interference by effectively using a joint detection technique or a non-linear equalization technique to detect the transmitted symbols. | 2010-04-29 |
20100103984 | FREQUENCY-DIVISION MULTIPLEXING TRANSCEIVER APPARATUS, WAVE-NUMBER-DIVISION MULTIPLEXING TRANSCEIVER APPARATUS AND METHOD THEREOF - A frequency-division multiplexing transmission apparatus for transmitting data in a frequency spectrum specific to both symbol and mobile station, is disclosed. The apparatus encodes transmission data, modulates the encoded data, compresses the time domains of each symbol of the modulated transmission-symbol sequence, repeats the symbols a specified number of times, rearranges each of the symbols of the obtained repetitive-symbol sequence so that they have the same arrangement as the transmission-symbol sequence, generates each phase that changes at a speed specific to each symbol of the transmission-symbol sequence, performs phase rotation specific to the symbols for each symbol of the rearranged repetitive-symbol sequence, generates phase that changes at a speed specific to a mobile station, performs phase rotation specific to the mobile station for the symbol sequence for which the phase rotation was performed, and transmits the phase-rotated symbol sequence. | 2010-04-29 |
20100103985 | METHOD AND APPARATUS FOR REDUCING MULTI-USER PROCESSING IN WIRELESS COMMUNICATION SYSTEMS - A method and apparatus is disclosed for reducing multi-user processing at the receiver in wireless communication systems. Detected codes are grouped according to channel impulse response and a parent code is identified for each group of detected codes. A matrix A is constructed and joint detection is performed using the identified parent codes. Data symbols of the detected codes are obtained from the data symbols of the identified parent codes. | 2010-04-29 |
20100103986 | Receiver - With the objective of enhancing receiving performance of a receiver with respect to pulse signals spread by spread codes, the receiver comprises an RF front-end section which performs amplification, an AD converter section which AD-converts signals outputted from the RF front-end section, a baseband section which inversely spreads the output of the AD converter section and performs signal detection and demodulation thereon, a reception environment measuring section which measures reception environment using the input signals of the baseband section, and a parameter setting section which sets parameters for respective parts on the basis of signals outputted from the reception environment measuring section. The parameter setting section sets the parameters for the respective parts to the optimum according to the environmental condition measured by the reception environment measuring section. | 2010-04-29 |
20100103987 | METHOD AND APPARATUS FOR TRANSFERRING SIGNALS IN A WIRELESS COMMUNICATION SYSTEM - Data is transferred in a wireless communication system, such as a wireless spread spectrum communication system. A plurality of transmitting antennas are provided. Data is encoded to produce a plurality of data streams for each of the plurality of codes. The plurality of data streams are spread with the plurality of spreading codes, and for each transmitting antenna, one of the spread data streams of each code together is combined to produce a spread data vector. Each transmitting antenna transmits its spread data vector. The transmitted spread data vectors are received by each of a plurality of receiving antennas as a received version, and the data is recovered using the received versions. | 2010-04-29 |
20100103988 | DEVICE FOR RECEIVING SATELLITE SIGNALS INCLUDING A PHASE LOOP WITH DELAY COMPENSATION - The general field of the invention is that of devices for receiving radio-navigation signals by satellite, said received signals being transmitted at a carrier frequency, said device including at least means for generating a local signal at a local frequency and a tracking device including a feedback loop called carrier loop for phase-locking the local frequency on the carrier frequency, said loop including a hardware portion and a software portion. The software portion performs the functions of discrimination of the phase of the correlated signal and filtering of said phase. In the various devices according to the invention, the software portion also includes correlation functions mainly dependent on the linear variation coefficients between the local phases φ | 2010-04-29 |
20100103989 | Robust Low-Frequency Spread-Spectrum Navigation System - Methods and apparatus are described for a navigation system. A process includes providing a plurality of transmitters distributed throughout a desired coverage area; locking the plurality of transmitters to a common timing reference; transmitting a signal from each of the plurality of transmitters. An apparatus includes a plurality of transmitters distributed throughout a desired coverage area; wherein each of the plurality of transmitters comprises a packet generator; and wherein the plurality of transmitters are locked to a common timing reference. | 2010-04-29 |
20100103990 | SYNCHRONIZATION METHODS FOR SINGLE-FREQUENCY SIMULCAST MOBILE RADIO COMMUNICATION NETWORKS - What is described is a circuit arrangement and a method for synchronizing the communication signals between a repeater station (S) of a single-frequency simulcast radio communication network (N) and user terminals (T) with respect to a universal reference signal sent by a central station (M) of the network (N) communicating with the repeater station (S). A frequency offset is determined between a universal frequency reference signal received from the central station (M) and a local frequency reference signal of the repeater station (S), and in the repeater station (S) there are provided a first feedback control loop for supplying a signal for controlling a local oscillator of the repeater station (S) on the basis of the said determined frequency offset, and a second direct control loop for supplying a signal for compensating the residual synchronization difference of the local oscillator ( | 2010-04-29 |
20100103991 | Communication Systems - A transmission method for use in a multi-hop wireless communication system is provided. Furthermore, the system has access to a time-frequency format for use in assigning available transmission frequency bandwidth during a discrete transmission interval. The format defines a plurality of transmission windows within such an interval, where each window occupies a different part of that interval and has a frequency bandwidth profile within the available transmission frequency bandwidth over its part of that interval. Furthermore, each window being assignable for such a transmission interval to one of said apparatuses for use in transmission. The transmission method for use in this system includes employing said format for one or more such transmission intervals to transmit data and control information together along at least two consecutive said links as a set of successive transmission signals, link by link. Each said signal is transmitted in an available transmission window of said interval(s) and at least two of said signals are transmitted during the same said transmission interval such that said information is transmitted along said consecutive links in fewer transmission intervals than said number of consecutive links. | 2010-04-29 |
20100103992 | Systems And Methods For Ramping Power Amplifier Output Power - A power amplifier circuit including a first transistor, a second transistor, and a power control circuit. The first transistor includes a first input and a first output. The second transistor includes a second input coupled in series with the first output of the first transistor. The input circuit is coupled to the first input of the first transistor. The power control circuit is coupled to the second input of the second transistor. The control circuit includes a time delay circuit and a variable source. | 2010-04-29 |
20100103993 | Methods and Arrangements in a Digital Subscriber Line Network - The present invention relates to method and arrangements for reducing crosstalk in a DSL system. This is achieved by providing the users in the network with a ghost line, i.e. a virtual line that should reflect the damage to be caused to the remaining users in the network, and that each user allocates the PSDs such that the allocated PSD is optimized against this ghost line. A central agent is adapted to continuously and individually update the ghost lines by collecting a measure indicating the impact of crosstalk from all modems. | 2010-04-29 |
20100103994 | Interface With Variable Data Rate - A device includes a transmitter coupled to a node, where the node is to couple to a wired link. The transmitter has a plurality of modes of operation including a calibration mode in which a range of communication data rates over the wired link is determined in accordance with a voltage margin corresponding to the wired link at a predetermined errorrate. The range of communication data rates includes a maximum data rate, which can be a non-integer multiple of an initial data rate. | 2010-04-29 |
20100103995 | Apparatus and method for controlling universal IC card in complex terminal - A complex terminal includes an apparatus for controlling a Universal IC Card (UICC). The apparatus is configured to obtain a control information through a UICC initialization and provide a corresponding communication modem with the control information. A communication modem can request a communication authority based on the control information and obtain the communication authority from a controller. A selector can connect the corresponding communication modem to the UICC while the controller provides the corresponding communication modem with the communication authority. | 2010-04-29 |
20100103996 | MANAGING TAP POSITIONS IN A DIGITAL DELAY LINE - This method of reading a plurality of chip sample values at tap positions ( | 2010-04-29 |