16th week of 2013 patent applcation highlights part 27 |
Patent application number | Title | Published |
20130094446 | OPTIMIZATIONS TO CIRCUIT-SWITCHED FALLBACK (CSFB) PROCEDURE - Circuit-switched fallback (CSFB) is a technique to deliver voice-services to a mobile, when the mobile is camped in a long-term evolution (LTE) network. Certain aspects of the present disclosure provide techniques that may help reduce delays in call setup related to CSFB and, in some cases, avoid unnecessary paging. | 2013-04-18 |
20130094447 | Energy Efficient Method For Communication Between A Wireless Sensor Network And An Industrial Control System - A method for communication between a wireless device node in a wireless sensor network and control apparatus or control processes of an industrial control system. The wireless network includes a plurality of device nodes and at least one gateway. The method includes receiving at a gateway an aggregated data packet or a final address in the ICS. The gateway processes the data packet, detects that it is an aggregated data packet and reconstructs the original data packets contained therein. The gateway then sends each of the original data packets as standard data packets to the intended final address in the ICS. In other aspects of the invention a method, system and a computer program for carrying out the method are described. | 2013-04-18 |
20130094448 | METHOD AND APPARATUS FOR TRANSMITTING SOUNDING REFERENCE SIGNAL IN RADIO COMMUNICATION SYSTEM - According to an embodiment, the invention provides a method for receiving a sounding reference signal (SRS) at a base station in a wireless communication system, the method including: transmitting a downlink control information (DCI) for triggering a second SRS to a user equipment; and receiving at least one of a first SRS triggered by a higher layer and the second SRS triggered by the DCI from the user equipment, wherein, if both transmission of the first SRS and transmission of the second SRS occur in a same subframe at the user equipment, the second SRS is only received from the user equipment. | 2013-04-18 |
20130094449 | BASE STATION APPARATUS, MOBILE TERMINAL APPARATUS AND COMMUNICATION CONTROL METHOD - The present invention provides a base station apparatus, a mobile terminal apparatus and a communication control method that can adequately allocate resources of response signals for retransmission for spatially-multiplexed signals respectively corresponding to a plurality of layers via the uplink and that support next-generation mobile communication systems. Discloses is a configuration to receive signals in which a plurality of layers are spatially-multiplexed on the uplink from a mobile terminal apparatus ( | 2013-04-18 |
20130094450 | MOBILE COMMUNICATION METHOD AND MOBILE STATION - A mobile communication method according to the present invention includes a step of transmitting, by a radio base station eNB, “RRC Connection Reconfiguration” instructing to add new DL CC to a mobile station UE, a step of calculating, by the mobile station UE, Power headroom on the basis of a path loss estimated from the new DL CC, in response to the “RRC Connection Reconfiguration”, and a step of transmitting, by the mobile station UE, “MAC Control Element” including the Power headroom to the radio base station eNB. | 2013-04-18 |
20130094451 | MULTI-DEVICE MONITORING AND CONTROL USING INTELLIGENT DEVICE CHANNEL SHARING - A shared logical device physical network address is assigned to each of a set of wireless physical devices. The set of wireless physical devices forms a logical device group addressable over a single wireless communication channel using the shared logical device physical network address within a wireless network. In response to receipt of a data packet addressed to a physical network address of one of the set of wireless physical devices from an application server, the physical network address is translated to the shared logical device physical network address with which the wireless physical device is logically grouped. The physical network address of the wireless physical device is embedded within the data packet addressed to the shared logical device physical network address. The data packet is sent to the shared logical device physical network address. | 2013-04-18 |
20130094452 | MULTI-DEVICE MONITORING AND CONTROL USING INTELLIGENT DEVICE CHANNEL SHARING - A shared logical device physical network address is assigned to each of a set of wireless physical devices. The set of wireless physical devices forms a logical device group addressable over a single wireless communication channel using the shared logical device physical network address within a wireless network. In response to receipt of a data packet addressed to a physical network address of one of the set of wireless physical devices from an application server, the physical network address is translated to the shared logical device physical network address with which the wireless physical device is logically grouped. The physical network address of the wireless physical device is embedded within the data packet addressed to the shared logical device physical network address. The data packet is sent to the shared logical device physical network address. | 2013-04-18 |
20130094453 | MULTI-RESOLUTION PRECODING CODEBOOK - Systems and methods are for generating a codebook by: generating a multi-resolution codebook by selecting a common precoder index from a low resolution codebook for a group of adjacent resource blocks (RB)s and for each RB within the group, selecting a high-resolution codebook to fine-tune each RB precoder; and generating feedback for the multi-resolution codebook by quantizing channel state variations. | 2013-04-18 |
20130094454 | APPARATUS AND METHODS FOR FACILITATING SIMULCASTING AND DE-SIMULCASTING IN A DISTRIBUTED ANTENNA SYSTEM - An RF connection matrix may include first and second carrier-specific RF connection matrix modules. The first carrier-specific RF connection matrix module can be adapted to route a first downlink transmission to one or more remote antenna units for transmission on a first carrier. The second carrier-specific RF connection matrix module can be adapted to route a second downlink transmission to one or more remote antenna units for transmission on a second carrier. Methods for facilitating simulcasting and de-simulcasting may include receiving a signal associated with a sector ID, which signal includes a first downlink transmission for a first carrier and a second downlink transmission for a second carrier. The first downlink transmission can be routed to one or more remote antenna units for transmission on the first carrier. The second downlink transmission can be routed to one or more remote antenna units for transmission on the second carrier. | 2013-04-18 |
20130094455 | Dynamic Buffer Status Report Selection for Carrier Aggregation - In one exemplary aspect of this invention a method includes buffering data in a user equipment and, in response to an amount of buffered data exceeding a threshold value, triggering the generation of a buffer status report and the sending of the buffer status report to a network access node, where the threshold value is a function of the capacity of a currently allocated uplink data transmission resource and some certain amount of time. In another exemplary embodiment the triggering of the generation of the buffer status report and the sending of the buffer status report to a network access node occurs when an amount of buffered data in a buffer of a particular logical channel group exceeds a maximum value associated with one of a plurality of buffer status report tables that is currently in use. | 2013-04-18 |
20130094456 | METHOD OF CONFIGURING CROSS-CARRIER CFI - A method of configuring the cross-carrier CFI such that separate CFI value can be specified for each subframe within an x number of consecutive frames. The same set of CFI values is applied by the UE for every other x consecutive frames until it is reconfigured by the eNB. | 2013-04-18 |
20130094457 | DATA TRANSMISSION AND RECEPTION METHOD OF MACHINE TYPE COMMUNICATION (MTC) DEVICE - There are provided a data transmission and reception method of a machine type communication (MTC) device, and an MTC device using the same. The data transmission and reception method of the MTC device includes: extracting information related to an MTC band from a downlink frame received from a base station, searching for an MTC downlink resource region in the downlink frame based on the information related to the MTC band, and extracting MTC data for the corresponding MTC device from the MTC downlink resource region. The MTC band includes a band through which at least a physical broadcast channel and a synchronization channel are transmitted. | 2013-04-18 |
20130094458 | System and Method for Data Channel Transmission and Reception - A method for operating a communications controller includes allocating a number of resource blocks to an enhanced physical downlink shared channel (ePDSCH), and identifying a starting point for the resource blocks of the ePDSCH, the starting point located within a control region of a subframe. The method also includes signaling to a user equipment (UE) the starting point of the resource blocks and the number of resource blocks allocated to the ePDSCH. | 2013-04-18 |
20130094459 | Beacon Slot Allocation in Prime - Systems and methods for efficiently allocating beacon slot among multiple nodes on multiple levels within a power line communication network are described. In various implementations, these systems and methods may be applicable to Power Line Communications (PLC). For example, a method may include performing, by a communications device, assigning beacon transmission times to nodes within the communication device's network. The assigned beacon transmission times comprise a beacon slot and frame pattern. The beacon slot and frame pattern ensure that each node does not transmit a beacon in a beacon slot that is adjacent to a beacon slot assigned to a parent or child node. A beacon transmission slot is reserved for a base node in every frame. The frames may be organized into thirty-two-frame superframes, wherein each frame comprises a base node beacon slot and four switch node beacon slots. | 2013-04-18 |
20130094460 | Methods for Transmitting and Receiving Channel State Information (CSI) and Apparatuses Thereof - A method for transmitting, by a user equipment (UE), a channel state information (CSI) in a wireless communication system is disclosed. The method includes receiving control information about a transmission of the CSI from a serving eNodeB, allocating a CSI combination composed of different CSIs to one subframe based on the received control information, and transmitting the CSI combination to the serving eNodeB in the allocated subframe, wherein the control information includes information on a maximum payload size of a CSI being able to be transmitted in one subframe, a transmission period and a transmission start time point of the CSI combination, and a transmission period and a transmission start time point of each of the different CSIs. | 2013-04-18 |
20130094461 | COMMUNICATION SYSTEM FOR SUPPORTING CARRIER AGGREGATION AND METHOD AND APPARATUS FOR UPDATING SYSTEM INFORMATION THEREOF - A communication system for supporting carrier aggregation and a method and apparatus for updating system information thereof are disclosed. A method for providing system information in the communication system supporting carrier aggregation includes: when system information of said communication system changes, generating first information including information for indicating the change of system information; determining a first cell of a terminal related to the change of system information, wherein said first cell is one of cells to which said terminal connects, and corresponds to a carrier unit currently used by said terminal for keeping connection with a base station of said communication system; and transmitting said first information to said terminal through said first cell. | 2013-04-18 |
20130094462 | SUPPORTING MULTIPLE ACCESS TECHNOLOGIES IN A WIRELESS ENVIRONMENT - Support for multiple wireless access technologies in a common radio access network is provided. In one aspect, a method of wireless communication includes determining whether to map a shared data channel to at least one resource element. The mapping determination is based at least in part on whether the shared data channel is associated with a legacy wireless technology or an advanced wireless technology. The method further includes transmitting the shared data channel based at least in part on the mapping determination and transmitting a reference signal in the at least one resource element. | 2013-04-18 |
20130094463 | System and Method for Improved Control Channel Transmit Diversity - A method for providing transmit diversity in wireless network communications is presented. An indication of a slot structure is received. The slot structure identifies at least a first location of a reference signal within a slot. A first reference signal is transmitted within a first slot using a first antenna. A location of the first reference signal within the first slot is determined by the slot structure. A second reference signal is transmitted within the first slot using a second antenna. A location of the second reference signal within the first slot is determined by the slot structure. In some cases, the slot structure identifies a second location of a reference signal within the slot structure. The second location being offset from the first location, and a third reference signal is transmitted within the first slot at the second location on the first antenna. | 2013-04-18 |
20130094464 | METHOD AND TERMINAL FOR FEEDING BACK CHANNEL STATE INFORMATION - The disclosure provides a method and terminal for feeding back channel state information. The method comprises: a UE determining channel state information comprising a first type of PMI and a second type of PMI, wherein the first type of PMI is used for indicating an index of a first precoding matrix in a first precoding codebook, the first precoding matrix is used for mapping channel information of a wideband and/or long-term channel, the second PMI is used for indicating an index of a second precoding matrix in a second precoding codebook, the second precoding matrix is used for mapping channel information of a subband and/or short-term channel; the UE feeding back the channel state information on a PUSCH. The disclosure enables a base station to dynamically select SU-MIMO or MU-MIMO transmission according to the practical channel condition so as to effectively improve the system performance. | 2013-04-18 |
20130094465 | RADIO COMMUNICATION METHOD AND A BASE STATION AND USER TERMINAL THEREOF - A radio communication system where a terminal transmits a data signal to a base station using data transmission band frequencies assigned by the base station, and performs time-division multiplexing of a pilot signal with the data signal and transmits the resulting signal to the base station. Including deciding a pilot transmission band for the user terminal covering the data transmission band of the user terminal by frequency offset; and instructing the user terminal to transmit the pilot signal using the decided pilot transmission band. A CAZAC sequence is used as the pilot signal. The instructing includes calculating a frequency offset amount for the user terminal, and a cyclic shift amount of the CAZAC sequence and the frequency offset amount; instructing the user terminal to perform cyclic shift of the CAZAC sequence by the cyclic shift amount, and perform frequency offset of the pilot transmission band by the frequency offset amount. | 2013-04-18 |
20130094466 | UPLINK CONTROL CHANNEL TRANSMISSION CONTROL METHOD IN A MULTI-CARRIER SYSTEM AND TERMINAL USING SAME - Provided is a transmission power control method for an uplink control channel of a terminal in a multi-carrier system where a plurality of downlink component carriers and at least one uplink component carrier are set in the terminal. The method includes: receiving a plurality of downlink grants from a base station; checking a Transmission Power Command (TPC) field included in each of the plurality of downlink grants; determining a transmission power of an uplink control channel (PUCCH) with a value of the checked TPC field; and transmitting the uplink control channel at the determined transmission power, with one configured uplink component carrier among the at least one uplink component carrier. | 2013-04-18 |
20130094467 | DEVICE AND METHOD FOR RECONFIGURING COMPONENT CARRIER IN WIRELESS COMMUNICATION SYSTEM THAT OPERATES PLURALITY OF COMPONENT CARRIERS, AND DEVICE AND METHOD FOR TRANSMITTING RRC CONNECTION-RECONFIGURATION MESSAGE THEREFOR - The present description relates to a device and a method for reconfiguring a component carrier (CC) of a UE in a wireless communication system that operates a plurality of CCs. The UE receives an RRC connection-reconfiguration message, performs a CC reconfiguration procedure for adding, modifying, and releasing functions or the like of a corresponding CC for the UE by using CC configuration information contained in a CC connection reconfiguration message, and generates a CC reconfiguration completed message to transmit the generated message to an eNB. Since the present description defines CC index information mapped into each CC by using CC unique information, later the CCs can be divided by using only the received CC index information even without the CC unit information, where by efficient CC reconfiguration plans are made. | 2013-04-18 |
20130094468 | METHOD AND DEVICE FOR DETERMINING PRECODING INFORMATION FOR UPLINK MULTI-ANTENNA TRANSMISSION - The present invention relates to a method for allowing a terminal to transmit uplink data through an HARQ method in a wireless communication system that supports MIMO transmission comprises the steps of: transmitting a plurality of data blocks to a base station on the basis of an uplink grant; receiving, from the base station, control information which indicates a NACK for some data blocks among the plurality of data blocks; selecting, according to a predetermined rule shared in the terminal and the base station, a precoding matrix which is to be applied to the data blocks for which the NACK is indicated; and retransmitting the data blocks, for which the NACK is indicated, to the base station by applying the selected precoding matrix. | 2013-04-18 |
20130094469 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING INFORMATION THROUGH FAST FEEDBACK CHANNEL IN BROADBAND WIRELESS COMMUNICATION SYSTEM - An apparatus and method for transmitting information through a fast feedback channel in a wireless communications system are provided. The apparatus includes a plurality of mappers for mapping a sequence, corresponding to an index to be fed back, to a first set of resource blocks in a fast feedback channel by using a first mapping pattern and to a second set of resource blocks in the fast feedback channel by using a second mapping pattern, and a transmitter for transmitting the sequence mapped to a plurality of sets of resource blocks, wherein the sequence is mapped to each of the plurality of sets of resource blocks, and wherein each element of the sequence is mapped to each resource block. | 2013-04-18 |
20130094470 | VDL2 Power Control - Power control of a digital datalink system within an aeronautical telecommunication network is described herein. According to embodiments, the system is configured to calculate the transmission power of an air-based communication station, based on the transmission power used by a ground-based communication station, wherein the transmission power of the air-based communication station is sot to a decibel level higher than or equal to the transmission power of the ground-based communication station. | 2013-04-18 |
20130094471 | SYSTEM AND METHOD FOR MINIMIZING LOSS OF IP CONTEXT DURING IRAT HANDOVER - A method for maintaining IP context during an inter RAT handover of a UE between an eHRPD network and an LTE network may include delaying a transfer of an Internet Protocol context for at least one active packet data network until an IP address for an attach (PDN) Packet Data Network has been assigned and in the case where the Internet Protocol address for the Attach Packet Data Network is not assigned, initiating a detach operation from the LTE network without the user equipment losing the Internet Protocol context of the at least one active Packet Data Network. | 2013-04-18 |
20130094472 | METHODS AND APPARATUSES FOR REDUCING VOICE/DATA INTERRUPTION DURING A MOBILITY PROCEDURE - Method and apparatus are provided that may help improve user experience during a media session when a mobility procedure of a user equipment (UE) involved in the session causes disruption in reception of packets. According to certain aspects, upon detecting an event indicating a mobility procedure is likely to occur, the UE may increase size of a buffer used to store packets during the session and/or reduce the rate at which packets are played out from the buffer to reduce service (e.g., voice/data) interruption. | 2013-04-18 |
20130094473 | SIP - ENABLED FRAMEWORK FOR MULTI-DOMAIN ROAMING CONTROL PLANE IN A WIMAX ACCESS NETWORK - Middleware is provided as a control plane for WiMAX control messaging. Each ASN in a WiMAX system is associated with a Session Initiation Protocol (SIP) server. A plurality of Functional Entities (FEs) are distributed across the ASNs, wherein each FE (or a group of FEs) associated with a SIP agent. Each FE is operable to control a function associated with a subscriber station (SS). The function controlled by a first FE is transferred to a second FE by employing the SIP agents to establish a SIP session between the first and second FEs. WiMAX control messages are then exchanged over the established session to transfer the SS function from the first FE to the second FE. The first and second FEs may be in the same ASN, or the first and second FEs may be in different ASNs. | 2013-04-18 |
20130094474 | METHOD FOR ESTABLISHING A LINK BETWEEN TWO COMMUNICATION FACILITIES - The invention relates to a method for establishing a link through which at least one data stream is to be transmitted. A first communication facility and a second communication facility form a first and second end of the link, respectively. A first base station is connected to the first communication facility, and a second base station is connected to the second communication facility, the first base station having preselected the second base station from among a plurality of base stations. The method includes the following steps, implemented by the first communication facility: extracting an identifier of the first base station and an identifier of the second base station, said identifiers being included in a message transmitted by the first base station; and establishing the link between the first communication facility and the second communication facility from the extracted identifier of the first base station and the extracted identifier of the second base station. | 2013-04-18 |
20130094475 | METHOD AND APPARATUS FOR HANDOVER FROM WIRELESS LOCAL AREA NETWORK TO WIRELESS WIDE AREA NETWORK - A method for handover from a wireless local area network to a wireless wide area network and an apparatus supporting the method are provided. When channel interference becomes severe during communication with a wireless local area network, the method enables the apparatus to automatically perform handover to a wireless wide area network. The method includes checking integrity of data received from a wireless local area network, determining, if the received data lacks integrity, whether the received data was received within a threshold time, retrieving, if the received data was received within the preset threshold time, an integrity failure count and a retransmission count for the data from a storage unit, and performing, if the integrity failure count exceeds a maximum allowed number of failures and if the retransmission count exceeds a maximum allowed number of retransmissions, handover from the wireless local area network to a wireless wide area network. | 2013-04-18 |
20130094476 | METHOD AND SYSTEM FOR BLIND CHANNEL IMPULSE RESPONSE COMBINING FOR NOISE MITIGATION IN CHANNEL ESTIMATION IN A TD-SCDMA RECEIVER - Blind channel impulse response combining for noise mitigation in channel estimation in a TD-SCDMA receiver includes applying a correlation function to pairs of channel impulse response windows associated with non-desired user equipments, grouping all those channel impulse response windows having a correlation function above a predetermined threshold as identified with the same user equipment, and combining the channel estimation results from each identified user equipment in the group to mitigate noise. | 2013-04-18 |
20130094477 | Methods and Devices for Configuring User Equipments with Multiple Transmit Antennas - In deployments where there is a mixture of new Node Bs capable of uplink multi-antenna transmission and legacy Node Bs not capable of uplink multi-antenna transmission some embodiments described herein enable a network node (e.g. a radio network controller, RNC) to configure an uplink control channel (e.g. dedicated physical control channel, DPCCH) to be decodable by both the new and the legacy Node 8s when the UE operates in uplink multi-antenna transmission. | 2013-04-18 |
20130094478 | MULTICASTING METHOD AND SYSTEM - Technologies are generally described for providing multicasting services. In some examples, a method performed under control of a first user equipment may include receiving a first level of signal and a second level of signal from a base station during a first time slot and transmitting the second level of signal to a second user equipment during a second time slot. | 2013-04-18 |
20130094479 | METHODS FOR TRANSMITTING AND RECEIVING CHANNEL STATE INFORMATION (CSI) AND APPARATUSES THEREOF - A method for transmitting, by a user equipment (UE), a channel state information (CSI) in a wireless communication system is disclosed. The method includes receiving control information about a transmission of the CSI from a serving eNodeB, allocating a CSI combination composed of different CSIs to one subframe based on the received control information, and transmitting the CSI combination to the serving eNodeB in the allocated subframe, wherein the control information includes information on a maximum payload size of a CSI being able to be transmitted in one subframe, a transmission period and a transmission start time point of the CSI combination, and a transmission period and a transmission start time point of each of the different CSIs. | 2013-04-18 |
20130094480 | METHOD AND APPARATUS FOR GENERATING CONNECTION IDENTIFIER FOR DEVICE-TO-DEVICE COMMUNICATION - A method and a device for generating a Connection Identifier (CID) for Device-to-Device (D2D) communication are provided. A transmitting device transmits a request signal for requesting direct communication between the transmitting device and a receiving device on a resource unit of a first resource index determined based upon at least one of a device ID of the transmitting device and a device ID of the receiving device during a predetermined first period, receives information about at least one used CID being used by at least one surrounding device from the peripheral device during a second period following the first period, transmits generation information including at least one available CID acquired during the second period on a resource unit of a second resource index being identical to the first resource index during a third period following the second period, and determines at least one CID to be used for D2D communication between the transmitting device and the receiving device based on the generation information. | 2013-04-18 |
20130094481 | APPARATUS AND METHOD FOR MANAGING CHANNEL RESOURCE - An apparatus for managing a channel resource by a node sets a channel hopping sequence and a channel hopping offset value which are to be used, divides an assigned time slot into a plurality of subslots, divides a data frame for transmission into a plurality of subframes, and selects a channel for transmitting the plurality of subframes in the plurality of subslots, respectively, by channel hopping based on the channel hopping sequence, the channel hopping offset value, the index of the time slot, and the index of a subslot for transmitting a subframe. | 2013-04-18 |
20130094482 | METHOD AND APPARATUS FOR BUFFER STATUS REPORT IN MOBILE COMMUNICATION SYSTEM - A method and apparatus are provided for reporting a buffer status to a Node B, by a User Equipment (UE), in a mobile communication system. The method includes checking if a resource for data to be transmitted to the Node B is available, when there is a buffer status report triggered to be transmitted to the Node B; transmitting the buffer status report using the available resource, if the resource is available; and transmitting a scheduling request to the Node B, if the resource has not been allocated for a predetermined time duration. | 2013-04-18 |
20130094483 | Method And Apparatus For Handling Uplink Transmissions Using Multiple Uplink Carriers - A method and an apparatus for uplink transmission using multiple uplink carriers are disclosed. A wireless transmit/receive unit (WTRU) selects a dedicated channel medium access control (MAC-d) flow with highest priority data to be transmitted and performs uplink carrier selection and enhanced dedicated channel (E-DCH) transport format combination (E-TFC) restriction and selection to select a carrier among a plurality of carriers and select an E-TFC based on a maximum supported payload, a remaining scheduled grant payload of the selected carrier and a remaining non-scheduled grant payload. The WTRU then generates a medium access control (MAC) protocol data unit (PDU) for E-DCH transmission via the selected carrier based on the selected E-TFC. | 2013-04-18 |
20130094484 | METHOD, APPARATUS, AND COMPUTER PROGRAM PRODUCT FOR FILTERING LIST IN WIRELESS REQUEST - Method, apparatus, and computer program product embodiments of the invention are disclosed to improve the discovery of wireless networks. In example embodiments of the invention, a method comprises: transmitting a wireless message including a list of one or more wireless devices, from which a response is not desired; and receiving zero or more responses from one or more other wireless devices that are not on the list. | 2013-04-18 |
20130094485 | COMBINATORIAL MOBILE HOTSPOT DEVICE AND NETWORK SERVICE PROVISION METHOD THEREOF, NETWORK ACCESS DEVICE AND WIRELESS SERVICE POWER SUPPLY DEVICE - This invention discloses a combinatorial mobile hotspot device, a network service provision method thereof, a network access device and a wireless service power supply device. The network access device has a mobile internet access ability to provide an external host machine connecting to a wide area network through the network access device when the network access device is selectively and electrically coupled to the external host machine. A mobile hotspot device is formed while the network access device is electrically coupled to the wireless service power supply device. The wireless service power supply device supplies the power to the network access device. Further, by a wireless local network transceiver, a plurality of electronic devices in the hotspot covering region are able to connect to wide area network through the wireless access point service provided by the network access device. | 2013-04-18 |
20130094486 | Wireless Network Virtualization For Wireless Local Area Networks - An access point of a wireless network including: a controller for emulating a first virtual access point of a first service provider and a second virtual access point of second service provider; a transceiver port for communicating control signals to clients of the first and service providers to limit the uplink air-time of the clients; and a connection port for linking the first and second service providers to a backhaul. | 2013-04-18 |
20130094487 | Method and System for Information Transmission - The present invention discloses a method and system for information transmission. Said method includes: an Evolved Packet Data Gateway (ePDG) notifying a Policy and Charging Rules Function (PCRF) entity of the location information of a User Equipment (UE); the PCRF entity sending the location information of the UE to a Broadband Policy Control Function (BPCF) entity. The method and system provided by the present invention solve the problem that the BPCF in a fixed network can not initiate an S9* session to the PCRF entity. | 2013-04-18 |
20130094488 | METHOD FOR CHANNEL SOUNDING IN WIRELESS LOCAL AREA NETWORK AND APPARATUS FOR THE SAME - A channel sounding method in a wireless local area network (WLAN) system and an apparatus supporting the same are provided. A method of performing a sounding operation by an access point (AP) in a wireless local area network (WLAN) includes: generating a beamforming report (BR) poll frame including a sounding sequence; transmitting the BR poll frame to a station (STA); and selectively performing transmission beamforming on the station according to whether or not the BR frame is received from the station before a predetermined timeout. Transmission of an erroneous BR frame in case that a beam receiver fails to receive an null data packet announcement (NDPA) and an null data packet (NDP) is eliminated and a degradation of transmission efficiency is prevented. | 2013-04-18 |
20130094489 | PRIVACY CONTROL FOR WIRELESS DEVICES - According to various embodiments, a computer-implemented method is disclosed that includes receiving, at a wireless adaptor of a device, a wireless data packet from an access point (AP), wherein the wireless data packet includes a Basic Service Set Identifier (BSSID) of the AP; changing the BSSID of the received data packet by a processor or hardware to produce a modified wireless data packet; and transmitting the modified wireless data packet to an application on the device. | 2013-04-18 |
20130094490 | WIRELESS COMMUNICATION APPARATUS - A wireless communication apparatus has a first communication unit configured to perform at least one of transmission and reception by using a multicarrier signal constituted by a plurality of subcarriers shaped by a band-limited pulse waveform; and second communication unit configured to perform at least one of transmission and reception by using a signal having a different modulation format or modulation constant from said signal of said first communication unit. Said first communication unit configured to perform communication without using at least one of said plurality of subcarriers, and said second communication unit configured to perform communication using a band of said subcarrier not used by said first communication unit. | 2013-04-18 |
20130094491 | COMMUNICATIONS APPARATUSES AND METHOD FOR MULTI-LEVEL TRANSMISSION POWER CONTROL THEREOF - A communications apparatus is provided. A radio module transmits first packets before establishing a connection with a peer communications device. A transmission power utilized for transmitting the first packets is adjustable, so that multiple levels of transmission power are utilized for transmitting the first packets. | 2013-04-18 |
20130094492 | WIRELESS COMMUNICATION APPARATUS WITH PHYSICAL LAYER PROCESSING MODULE AND MAC LAYER PROCESSING MODULE AND ITS COMMUNICATION METHOD - A wireless communication apparatus includes a first module, a second module, an inhibit module, a calculation module, and a control module. The first module constitutes a first system. The first system transmits and receives first data to and from a first device. The second module constitutes a second system. The second system transmits and receives second data to and from a second device in each interval time-divided with determined transmission timing. The inhibit module generates inhibit periods for preventing the first module from communicating by use of the first data. The calculation module calculates an occupation time required for the transmission and reception of the first data. The control module compares the period between the inhibit periods adjacent to one another with the occupation time and, according to the comparison result, instructs the first device to stop or delay the transmission of the first data. | 2013-04-18 |
20130094493 | ESTABLISHING FAIRNESS AND REDUCING DELAY IN BROADCAST BASED VEHICLE TO VEHICLE COMMUNICATION USING APPLICATION-LEVEL PHASE ADJUSTMENTS - A method for a station to periodically broadcast messages over a wireless channel to communicate to multiple other stations who transmit on the same channel, the station becomes ready to broadcast at successive message activation times, at a message activation time the station performing a Multiple Access mechanism ( | 2013-04-18 |
20130094494 | Method And Apparatus For Interworking Voice And Multimedia Services Between CSI Terminal And IMS Terminal - A method and apparatus is provided for communication between a first terminal capable of using both a Circuit Switched (CS) call and an Internet Protocol Multimedia Subsystem (IMS) session, and a second terminal capable of using the IMS session, in a communication system supporting a Combined CS call and IMS session (CSI service). If the second terminal sends a Session Initiation Protocol (SIP) request (INVITE) message to originate a voice service or a multimedia service including the voice service with the first terminal, a CSI Application Server (AS) of an IMS domain managing the first terminal separates a voice service-related component included in the request message from a multimedia service-related component, and generates and sends first and second request messages to the first terminal. Upon receipt of first and second response messages corresponding to the first and second request messages from the first terminal, the CSI AS generates a combined response message and sends the combined response message to the second terminal. | 2013-04-18 |
20130094495 | SESSION TRANSFER METHOD, APPLICATION SERVER, AND COMMUNICATIONS SYSTEM - Embodiments of the present invention relate to the field of communications and provide a session transfer method, an application server, and a communications system, which implement a cross-network session transfer between a CS domain and an IMS domain. The method includes: after receiving a session transfer request sent by user B or user C in the IMS domain, sending a release message to the user B currently in a call to terminate a session between user A in the CS domain and the user B, and negotiating media information of the user A and media information of the user C to establish a session between the user A and the user C. The embodiments of the present invention apply to a cross-network session between the CS domain and the IMS domain. | 2013-04-18 |
20130094496 | METHOD AND APPARATUS FOR ENABLING PHONE NUMBER DIALING USING EMAIL ADDRESSES - The invention comprises a method and apparatus for enabling a subscriber to establish a call to at least one destination phone number using an email address. Specifically, the method comprises receiving an incoming communication request from the subscriber for establishing the call (where the incoming communication request comprises an email address), determining at least one destination phone number associated with the email address, and processing the call using at least one of the at least one destination phone number associated with the email address. | 2013-04-18 |
20130094497 | METHOD AND APPARATUS FOR SENDING ALERTS TO INTERNET PROTOCOL PHONES - The present invention enables an alert message and the display of calling party identity on all on-hook phones associated with an extension sharing the same phone number, when one phone is off-hook and in use. In one exemplary embodiment, this capability enables all other members of a household to receive information regarding an incoming call even when one phone is in use by another member. | 2013-04-18 |
20130094498 | DYNAMIC PACKET ROUTING - Dynamic packet routing based on fabric awareness information is presented. Networking nodes in a networking fabric observe environmental properties across the fabric. When differences in environment properties between portions of the fabric are detected, differences in power consumption costs for example, the fabric generates corresponding routing tables. The networking nodes can then route traffic in a manner that is sensitive to the environment properties, power consumption or the cost of power for example. | 2013-04-18 |
20130094499 | System and Method for High-Performance, Low-Power Data Center Interconnect Fabric - A system and method are provided that support a routing using a tree-like or graph topology that supports multiple links per node, where each link is designated as an Up, Down, or Lateral link, or both, within the topology. The system may use a segmented MAC architecture which may have a method of re-purposing MAC IP addresses for inside MACs and outside MACs, and leveraging what would normally be the physical signaling for the MAC to feed into the switch. | 2013-04-18 |
20130094500 | PROCESS INSTALLATION NETWORK INTRUSION DETECTION AND PREVENTION - A process communication device includes a process communication interface for communicating on a process communication loop in accordance with a process communication protocol. A controller is coupled to the process communication interface. A rules store is coupled to the controller, and has at least one process communication packet rule that is based on the process communication protocol. The controller applies the at least one process communication packet rule to at least one process communication packet received from the process communication interface, and generates event information when a process communication packet fails at least one process communication packet rule. | 2013-04-18 |
20130094501 | PROCESSING DATA PACKETS IN PERFORMANCE ENHANCING PROXY (PEP) ENVIRONMENT - Methods and systems for processing network packets within a Performance Enhancing Proxy (PEP) environment are described. An example method comprises receiving network data to be transported between a first PEP and a second PEP. The network data is segmented in one or more original network packets. The method may further comprise collecting packet identifying data associated with the one or more original network packets before the network data is packetized into one or more performance enhanced packets by the first PEP. The method may further comprise transmitting the identifying data to the second PEP. Upon receiving of the identifying data, the second PEP may recreate the segmentation of the original network data. | 2013-04-18 |
20130094502 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING FORWARD ERROR CORRECTION PACKET IN MOBILE COMMUNICATION SYSTEM - An apparatus and method for transmitting/receiving a Forward Error Correction (FEC) packet in a mobile communication system are provided. In the FEC packet transmission method, an FEC packet transmission apparatus transmits an FEC delivery block to an FEC packet reception apparatus. The FEC delivery block includes N payloads. Each of the N payloads includes a payload header. Each payload header included in each of C payloads among the N payloads includes packet oriented header information and an FEC delivery block oriented header information fragment. The packet oriented header information is applied to a related payload, and the FEC delivery block oriented header information fragment is generated by fragmenting FEC delivery block oriented header information applied to the N payloads. | 2013-04-18 |
20130094503 | PAGE-MODE MESSAGING - Methods and apparatuses for sending or receiving a page mode message include, for example, sending a page mode message using a session mode message mechanism with an indication indicating that a session mode is for the page mode message. A session is established for carrying the page mode message by message session relay protocol. | 2013-04-18 |
20130094504 | Service Routing Method and System on Service Overlay Network - Embodiments of the present invention provide a service routing method that includes: a current service routing entity receiving a service request, and the current service routing entity selecting a second service routing entity; if the second service routing entity is not the current service routing entity itself, the current service routing entity forwards the service request to the second service routing entity, sets the second service routing entity is as the current service routing entity, and performs the receiving and the selecting until the second service routing entity selected by the current service routing entity is the current service routing entity itself; and if the second service routing entity is the current service routing entity itself, setting the current service routing entity as a first most adjacent service routing entity that obtains service registration information of the service and sends the service request to a service provider. | 2013-04-18 |
20130094505 | Multicast Support for Internet Protocol Version Four Residual Deployment Via Encapsulation or Translation - Included is an Internet Protocol (IP) version four (IPv4) Residual Deployment via IP version six (IPv6) (4rd) customer edge (CE) comprising a transceiver configured to communicate with an IPv6 network, and a processor coupled to the transceiver and configured to receive multicast packets from a multicast source via the IPv6 network, and transmit the multicast packets to a host. The disclosure also includes a 4rd border relay (BR) comprising a transceiver configured to communicate with an IPv6 network, and a processor coupled to the transceiver and configured to receive multicast packets from a multicast source, and transmit the multicast packets to a host via the IPv6 network and a 4rd customer edge (CE). | 2013-04-18 |
20130094506 | Method, device and system for implementing multicast forwarding in extended VLAN bridge - The disclosure provides a method, a device, and a system for implementing multicast forwarding in an EVB, wherein the method includes: the EVB controlling bridge receives a multicast frame and acquires a multicast address from the multicast frame; inquires on a master port and an ID of a subgroup corresponding to the multicast address from a first preset mapping table; forwards, when the ID of the corresponding subgroup is an MCID, the multicast frame carrying the MCID to a corresponding PE assembly via the master port; and the PE assembly distributes the multicast frame to a UE according to a correspondence between the MCID carried in the multicast frame and a downlink port of the PE assembly. In the present disclosure, the same multicast frame is forwarded just once at the same physical port in the EVB according to the mapping relation between the multicast address in the multicast frame and the master port and the ID of the subgroup corresponding to the multicast address, avoiding waste of network bandwidth caused by repetitive duplicating and forwarding by the same physical port, and increasing network bandwidth utilization. | 2013-04-18 |
20130094507 | PARALLEL PROCESSING OF NETWORK PACKETS - A packet processing circuit includes a plurality of header extraction circuits, and a scheduling circuit coupled to the plurality of header extraction circuits. The scheduling circuit is configured to receive one or more requests to extract header data of a respective packet from a data bus having a plurality of data lanes. In response to each request, the scheduling circuit determines a first subset of the plurality of data lanes that contain the respective header specified by the request, and assigns a respective one of the plurality of header extraction circuits to extract respective header data from the first subset of the plurality of data lanes. | 2013-04-18 |
20130094508 | Methods of and Apparatus for Managing Non-Congestion-Controlled Message Traffic in a Datacenter - Managing non-congestion-controlled message traffic in a datacenter. Any non-congestion-controlled packets originating in a sending server and intended for a receiving server are encapsulated in the sending server and transmitted through a virtual circuit having a message transport protocol with rate control. The packets are decapsulated in the receiving server. | 2013-04-18 |
20130094509 | OPEN COMMUNICATION METHOD IN A HETEROGENEOUS NETWORK - An open communication method between at least two sub-networks using a broker node. Each of the sub-networks has a different routable network addressing scheme. The method comprises receiving a packet for a specific application, the packet includes an application identifier, determining if the packet is to be relayed to another of the at least two sub-networks based upon the application identifier, determining if a node receiving the packet is a broker node, relaying the packet to a broker node if not a broker node and forwarding, by the broker node, the packet to at least one node in another of the at least two sub-networks. The node generating the packet communicates using a first of the at least two sub-networks. A broker node communicates using at least two of the at least two sub-networks via a corresponding routable network addressing schemes for each of the sub-networks. | 2013-04-18 |
20130094510 | MEDIUM ACCESS CONTROL ADDRESS PROTECTION METHOD AND SWITCH - The present disclosure discloses a MAC address protection method and switch. A switch in a layer 2 ring network obtains network topology information of the layer 2 ring network, the network topology information includes a protection MAC address of a protected device, an identifier of a switch corresponding to the protection MAC address, and an identifier of each switch in the layer 2 ring network, wherein the protection MAC address is the MAC address of the protected device; and determines a local outgoing interface of the protection MAC address of the protected device according to the network topology information, establishes and stores an outgoing interface of an MAC entry corresponding to the protection MAC address according to the local outgoing interface of the protection MAC address, thereby ensuring the protected device to correctly send and receive messages to meet the topology change of the layer 2 ring network. | 2013-04-18 |
20130094511 | PACKET DIVERSION METHOD AND DEEP PACKET INSPECTION DEVICE - A packet diversion method and a DPI device are disclosed in the present invention. The method includes: receiving a packet, where the packet contains a user identifier; according to the user identifier and preset first correspondence between the user identifier and a service type, searching for the service type corresponding to the user identifier in the packet; adding an inner virtual local area network Vlan header to the packet according to the service type, preset second correspondence between a service type and a slave device identifier, and preset third correspondence between a slave device identifier and each bit in a diversion identifier field; and diverting the packet to a corresponding slave device according to the diversion identifier in the diversion identifier field. The inner Vlan header carrying the diversion identifier field is added to the packet, to indicate diversion of the packet in a same cluster. | 2013-04-18 |
20130094512 | Interworking Between Ethernet And MPLS - A network bridge configured to convey customer traffic between a customer equipment and any of an MPLS network and an Ethernet network is disclosed. The network bridge comprises a C-VLAN component, an S-VLAN component and an MPLS component. The C-VLAN component can receive an Ethernet frame that carries the customer traffic, and forward the Ethernet frame to the S-VLAN component or to the MPLS component in dependence of a C-VID value of the Ethernet frame. The MPLS component can, when the Ethernet frame is received from the C-VLAN component, add MPLS information to the Ethernet frame, and forward the Ethernet frame to the S-VLAN component. The S- VLAN component then forwards the Ethernet frame to any of the MPLS network and the Ethernet network. A related network core bridge, methods and computer-readable medium are also described. | 2013-04-18 |
20130094513 | RELAY APPARATUS AND CONTROL METHOD - A relay apparatus includes a first data storage unit and a processor. The first data storage unit stores an output port identifier in connection with a combination of a port identifier and a communication type identifier. The processor obtains, when a frame is received, a first output port identifier corresponding to a combination of a port identifier of a port that received the frame and a communication type identifier included in the received frame by use of the first data storage unit to output the received frame to a port identified by the first output port identifier. | 2013-04-18 |
20130094514 | METHOD AND SWITCH FOR SENDING PACKET - The present disclosure discloses a method and a switch for sending a packet, which belongs to the field of computer network technologies. A layer 3 switch which is configured with an aggregated VLAN containing a plurality of VLANs searches information regarding correspondence between IP addresses and the VLANs to determine if there is a VLAN in the aggregated VLAN that corresponds to a target IP address in a packet; if there is a VLAN that corresponds to the target IP address, sends the packet to only that VLAN. In the technical solutions of the present disclosure, the number of invalid packets that are sent can be effectively reduced, thereby reducing an influence of the invalid packets on the whole virtual local area network. | 2013-04-18 |
20130094515 | SYSTEMS, APPARATUS, AND METHODS FOR REMOVING DUPLICATE DATA PACKETS FROM A TRAFFIC FLOW OF CAPTURED DATA PACKETS TRANSMITTED VIA A COMMUNICATION NETWORK - Systems, apparatus, and methods for removing duplicate data packets from a traffic flow of captured data packets transmitted via a communication network may generate a secure hash signature for a captured data packet included in a traffic flow of captured data packets. The secure hash signature may be transmitted to a memory controller. The memory controller may compare the received secure hash signature with one or more previously generated secure hash signatures stored in a memory and transmit a control signal to a switch responsively to the comparison The switch may then transmit, or not transmit, the captured data packet to an egress port for eventual transmission to an external device responsively to the received control signal. | 2013-04-18 |
20130094516 | Control Protocol System - A system and method for borrowing one or more time slots for data transmission is disclosed. The system comprises a monitor module, a request module and an allocation module. The monitor module detects a trigger event for borrowing a time slot from a potential lender. The request module generates a borrowing request responsive to the trigger event. The allocation module receives a response responding to the borrowing request from the potential lender. The allocation module determines whether the borrowing request is approved based at least in part on the response. Responsive to an approval of the borrowing request, the allocation module allocates one or more designated time slots included in a first active period and the borrowed time slot included in a second active period for data communication. | 2013-04-18 |
20130094517 | PAYLOAD FOR MULTI-INPUT MULTI-OUTPUT - Described herein are implementations related to data communication using a frame that includes at least two data packets. In one implementation, a first of the data packets includes at least a payload with repeated payload portions to increase diversity gain. A second of the data packets includes at least a payload with repeated payload portions to increase diversity gain. The repeated payload portions of the second data packet are shuffled or rotated in relation to the repeated data payload portions of the first data packet. In one implementation, the frame is conveyed in a Power Line Communication (PLC) system. | 2013-04-18 |
20130094518 | METHOD FOR CONFIGURING AND TRANSMITTING MMT PAYLOAD - A method for configuring and transmitting an MMT payload in a system are provided.. The method for configuring an MMT (MPEG Media Transport) payload format comprises configuring the MMT payload format such that essential information contained in each MMT payload format is included in a D-layer header, configuring the MMT payload format such that an MMT transmission packet includes one MMT payload format unit and configuring the MMT payload format such that packet streams are multiplexed in units of packets on a single port. | 2013-04-18 |
20130094519 | PROCESSING MESSAGES WITH INCOMPLETE PRIMARY IDENTIFICATION INFORMATION - Various exemplary embodiments relate to a method and related network node including one or more of the following: receiving, at the network device, a message associated with an entity; determining that the message lacks at least one primary identification value used to identify the entity associated with the message; extracting at least one secondary identification value from the message; selecting a correlation rule of a plurality of correlation rules that matches the at least one secondary identification value, wherein each correlation rule of the plurality of correlation rules identifies a mapping between secondary identification values and primary identification values; identifying the at least one primary identification value based on the selected correlation; identifying the entity based on the at least one primary identification value. | 2013-04-18 |
20130094520 | PROCESSING MESSAGES CORRELATED TO MULTIPLE POTENTIAL ENTITIES - Various exemplary embodiments relate to a method and related network node including one or more of the following: receiving a message; determining whether the network device should identify an entity associated with the message using a plurality of entity records, wherein each entity record of the plurality of entity records corresponds to an entity; if the network device should identify an entity associated with the message using the plurality of entity records: extracting at least one identification value; identifying a set of entity records as matching the at least one identification value; determining whether the set of entity records includes more than one entity record; and if the set of entity records includes more than one entity record: identifying a most current entity record that has been most recently modified, and processing the message as being associated with the entity to which the most current entity record corresponds. | 2013-04-18 |
20130094521 | NAI SUBSCRIPTION-ID HINT DIGIT HANDLING - Various exemplary embodiments relate to a method of identifying a subscriber at a network node. The method may include: receiving a message including a network access identifier (NAI); removing the first digit from the NAI to form a stripped NAI; determining whether the stripped NAI corresponds to a subscriber; determining whether the NAI corresponds to a subscriber; adding a hint digit to form an extended NAI, and determining whether the extended NAI corresponds to a subscriber; and if any of the NAIs correspond to a subscriber, using the corresponding NAI to identify the subscriber. Various exemplary embodiments relate to a policy and charging rules node including: a subscriber cache including a subscriber identifier; an interface configured to receive a NAI; a NAI modifier configured to form an extended NAI and a stripped NAI; and a subscriber identification module configured to determine whether a NAI is stored in the subscriber cache. | 2013-04-18 |
20130094522 | METHOD AND SYSTEM FOR UTILIZING MULTIPLEXING TO INCREASE THROUGHPUT IN A NETWORK OF DISTRIBUTED TRANSCEIVERS WITH ARRAY PROCESSING - A communication device that comprises a plurality of distributed transceivers, a central processor and a network management engine, may be configured for a multiplexing mode of operation. Configuring of the multiplexing mode of operation may include configuring one or more communication modules for multiplexing a plurality of data streams. Each of the communication modules may comprise one or more antennas and/or antenna array elements and one or more of said plurality of distributed transceivers associated with said one or more antennas and/or antenna array elements. The communication modules may be configured to be spatially distinct and/or to use different frequency channels. The data streams may be communicated to a single target device or to a plurality of target devices. | 2013-04-18 |
20130094523 | TIME SYNCHRONIZATION METHOD AND SYSTEM, AND NODE DEVICE - The present disclosure discloses a time synchronization method. In the method, a first node sends a first time packet at a first time over a first working wavelength; a second node receives the first time packet at a second time. The first node sends a second time packet at a third time over a second working wavelength. The second node receives the second time packet at a fourth time; calculates an absolute time deviation between the second node and the first node according to the first time, the second time, the third time, the fourth time, a first signal transmission rate corresponding to the first working wavelength, and a second signal transmission rate corresponding to the second working wavelength, and synchronizes the local time between the second node and the first node. Further, a time synchronization system and a node device are disclosed. | 2013-04-18 |
20130094524 | Transmit Diversity Using Low Code Rate Spatial Multiplexing - A system is provided for transmitting a low code rate spatially multiplexed channel on multiple antennas. The system includes a transmitter and a processor. The processor is configured such that the processor encodes a block of information bits to form channel coded bits, wherein the ratio of the number of channel coded bits to the number of information bits is greater than one; and the processor maps the channel coded bits to modulation symbols, and each channel coded bit is mapped once to a modulation symbol. The transmitter is configured to transmit a first portion of the modulation symbols using a spreading sequence on a first antenna of the multiple antennas and to transmit a second portion of the modulation symbols using the spreading sequence on a second antenna of the multiple antennas. | 2013-04-18 |
20130094525 | MEMS Q-Switched Er:Yb:Glass Laser - The compact Er:Yb:Glass Laser Cavity incorporates all optical components required for a short-pulse laser. These optical components are ‘locked’ into alignment forming an optical laser cavity for diode laser or flash lamp pumping. The optical laser cavity does not need optical alignment after it is fabricated. The improvement upon the original Er:Yb:Glass design replaces the Cobalt Spinel passive Q-switch component with a MEMS active Q-Switch component. | 2013-04-18 |
20130094526 | MEMS Q-Switched Nd:YLF Monoblock Laser - A monoblock laser cavity incorporates optical components for a short-pulse laser. These optical components are ‘locked’ into alignment forming an optical laser cavity for flash lamp or diode laser pumping. The optical laser cavity does not need further optical alignment upon fabrication. The improvements upon the original Monoblock design replaces the Cr:YAG Q-switch component with a MEMS scanner and replaces the Nd:YAG with Nd:YLF laser material. | 2013-04-18 |
20130094527 | WAVELENGTH MONITOR, WAVELENGTH LOCKABLE LASER DIODE AND METHOD FOR LOCKING EMISSION WAVELENGTH OF LASER DIODE - A wavelength monitor monolithically integrated with a tunable LD is disclosed. The wavelength monitor includes at least two filters, each having a periodic transmission spectrum but a period between nearest neighbor periods is different from the other. A transmittance of the first filter and another transmittance of the second filter at a grid wavelength attributed to the WDM system forms a combination which is specific to the grid wavelength bur different from other combinations at other grid wavelengths. | 2013-04-18 |
20130094528 | METHOD TO CONTROL EMISSION WAVELENGTH OF TUNABLE LASER DIODE - A method to control the emission wavelength of a tunable laser diode (LD) is disclosed. The method measures the first derivative of the wavelength against the first stimulus, typically a current injected in the SG-DFB region, and the second derivative of the wavelength against the power supplied to the heater in the CSG-DBR region. The method adjusts the current so as to coincide the emission wavelength with the target wavelength, then, corrects the target power for the heater based on the derivative of the current multiplied by a ratio of two derivatives measured in advance to the control of the heater current. | 2013-04-18 |
20130094529 | LASER APPARATUS, METHOD FOR GENERATING LASER BEAM, AND EXTREME ULTRAVIOLET LIGHT GENERATION SYSTEM - A laser apparatus for generating extreme ultraviolet (EUV) light at a wavelength of approximately 13 nm is provided. The laser apparatus may be combined with a reduced projection reflective optical system. Systems and methods for generating EUV light are also provided. | 2013-04-18 |
20130094530 | SEMICONDUCTOR LASER DRIVING CIRCUIT AND SEMICONDUCTOR LASER DEVICE INCLUDING THE SAME - A semiconductor laser driving circuit supplies a drive current to a semiconductor laser diode connected to an output terminal based on an input signal inputted thereto through an input terminal, thereby controlling the semiconductor laser diode. The semiconductor laser driving circuit includes a first supply portion supplying a bias current, and a first supply signal having a frequency component whose frequency is equal to or lower than a first frequency of the input signal, and a second supply portion supplying a second supply signal having a frequency component whose frequency is higher than a second frequency of the input signal. | 2013-04-18 |
20130094531 | VISUAL INDICATOR FOR SEMICONDUCTOR CHIPS FOR INDICATING MECHANICAL OR ESD DAMAGE - A semiconductor device including a semiconductor substrate having a surface including an active semiconductor device including one of a laser and a photodiode; and a visual indicator disposed on the semiconductor body and at least adjacent to a portion of said active semiconductor device, the indicator having a state that shows if damage to the active semiconductor device may have occurred. | 2013-04-18 |
20130094532 | Opto-Electronic Oscillator And Method - An opto-electronic oscillator circuit, including: an opto-electronic circuit loop including an optical modulator that receives a first electrical signal and produces an optical output signal coupled with an optical resonator, a photodetector circuit optically coupled with the optical resonator, and a phase shifter coupled with the photodetector circuit for producing a phase shifted output signal that is fed back as the first electrical signal; an optical loop comprising the optical coupling of the optical resonator with the photodetector; and an electrical feedback circuit loop for coupling the first electrical signal with the photodetector circuit. | 2013-04-18 |
20130094533 | LASER - The invention relates to a laser ( | 2013-04-18 |
20130094534 | LASER CRYSTALLIZATION APPARATUS AND LASER CRYSTALLIZATION METHOD USING THE SAME - A laser crystallization device is provided, which includes a vibration device vibrating a laser beam along its long axis, wherein a vibration frequency at which the laser beam vibrates is satisfied by Equation 1 below. | 2013-04-18 |
20130094535 | DEVICE FOR TESTING A SENSOR OF TRAIN UNDERCARRIAGE TEMPERATURES - A test apparatus for testing an IR sensor of train undercarriage temperatures is disclosed. The IR sensor may be used to obtain infrared IR emission data by sensing a wheel or a wheel bearing of a rail vehicle. The test apparatus may comprise a heat emitter for supplying IR emissions at a reference temperature to the IR sensor. A support may support the heat emitter at a position spaced from the passage of the rail vehicle and in an orientation for directing the IR emissions at the IR sensor. | 2013-04-18 |
20130094536 | EFFICIENT NETWORK DISCOVERY IN FREQUENCY HOPPING NETWORKS - In one embodiment, a device in a frequency hopping communication network transmits responsive beacon messages based on adaptive types of responsive beacon message transmission based on a number of received beacon requests within a given time period: the number below a threshold results in synchronized unicast messages; the number above the threshold results in unsynchronized broadcast messages. In another embodiment, the device suppresses unsolicited beacon message transmission based on a density-aware redundancy count of other unsolicited beacon message transmissions from neighboring devices. In another embodiment, the device may transmit unsolicited beacon messages according to an adaptive interval based on stability of the network. In another embodiment, the device may suppress transmission of a beacon request to join the communication network based on a density-aware redundancy count of other beacon requests from neighboring devices, and transmits beacon requests at an adaptive interval that increases in response to each unanswered beacon request. | 2013-04-18 |
20130094537 | DYNAMIC HOPPING SEQUENCE COMPUTATION IN CHANNEL HOPPING COMMUNICATION NETWORKS - In one embodiment, a device in a channel hopping communication network independently maintains a slot counter, and computes a channel identification (ID) based on a function having inputs of i) a unique feature of the device, ii) a current slot of the slot counter, and iii) a set of possible channel IDs. Accordingly, the device configures its radio to receive on the computed channel ID for the respective current slot. In another embodiment, the device may determine, for a neighbor device, a current neighbor slot and unique neighbor feature, and correspondingly computes a neighbor channel ID based on the function using the unique neighbor feature, the current neighbor slot, and the set of possible channel IDs. As such, the device configures its radio to transmit on the computed neighbor channel ID for the respective current neighbor slot. | 2013-04-18 |
20130094538 | METHOD AND SYSTEM FOR DYNAMIC INFORMATION EXCHANGE ON LOCATION AWARE MESH NETWORK DEVICES - A method and system for dynamic information exchange on mesh network devices. Mobile location aware mesh network devices automatically exchange information with other mobile location aware devices that are located at a pre-determined distance of each other at a desired physical location. A server network device compares electronic profiles that include stated interests of the mobile location aware devices. The server network device also provides additional information to the mobile location aware mesh network devices based on stated interests in the electronic profiles of the mobile location aware network devices. | 2013-04-18 |
20130094539 | SEMICONDUCTOR DEVICE, RECEIVER, TRANSMITTER, TRANSCEIVER AND COMMUNICATION SYSTEM - A semiconductor device includes: a clock and data recovery unit to which a receive signal is inputted and which extracts, based on an operation clock signal, a clock signal and a data signal from the receive signal; a frequency error adjusting unit which generates a frequency error signal indicating a frequency error between the clock signal extracted from the receive signal and the operation clock signal; a frequency error signal storage unit which stores the frequency error signal; an operation clock generation unit which controls, based on the frequency error signal, a frequency of the operation clock signal; and an SSCG unit which, based on the value of the frequency error signal stored in the frequency error signal storage unit, varies the operation clock signal generated by the operation clock generation unit by spreading the spectrum of the operation clock signal. | 2013-04-18 |
20130094540 | Methods And Apparatus For Reducing A Sampling Rate During A Sampling Phase Determination Process - Techniques for use in sampling a signal of a receiver are described. In a sampling determination mode, a signal is sampled at a first sampling period for producing a sample set for each phase of the sampled signal. For each sample set, a correlation process is performed for producing a correlation result. One of the phases associated with an optimal correlation result is identified from the correlation results. In a communication mode, a received signal is sampled at a second sampling period at the phase associated with the optimal correlation result, for recovering user or signaling information from the received signal. The second sampling period is less than the first sampling period. | 2013-04-18 |
20130094541 | RECEIVING DEVICE, RECEIVING METHOD, COMPUTER PROGRAM, AND PORTABLE TERMINAL - To provide a receiving device which is capable of reducing average power and peak power by holding pseudo synchronization of a satellite signal during a sleep period. Provided is a receiving device including a receiving unit for receiving a signal from a satellite, a frequency conversion unit for converting a frequency of the received signal into a predetermined intermediate frequency, a synchronization acquisition unit for carrying out synchronization acquisition and for detecting a carrier frequency, and a synchronization holding unit for assigning and setting, per satellite, a phase of the spread code and the carrier frequency to each of a plurality of channels independently provided in a corresponding manner to a plurality of the satellites to synchronously hold the spread code and a carrier and also for demodulating a message included in the intermediate frequency. The synchronization holding unit includes a spreading code generation unit for generating a spreading code synchronized with the spread code, and in a sleep period in which a positioning operation is not carried out, the synchronization holding unit causes only the spreading code generation unit to operate and a counter that the synchronization holding unit refers to also operates. | 2013-04-18 |
20130094542 | Interconnect coding method and apparatus - A computer program that is embodied on a storage medium for execution on a processor is provided. With this computer program, A current cost is calculated for each transition on a bus having a predetermined width for a functional circuit so as to form a transition cost matrix. Then, a predetermined number of the lowest cost transitions for from the transition cost matrix is determined so as to generate a probability transition matrix. The product of the probability transition matrix and the transition cost matrix can be iteratively determined, while also updating the probability transition matrix until the probability transition matrix converges. | 2013-04-18 |
20130094543 | METHODS AND DEVICES FOR DETERMINING A TRANSMISSION RANK - The invention relates to a method | 2013-04-18 |
20130094544 | METHOD AND SYSTEM FOR MIMO TRANSMISSION IN A DISTRIBUTED TRANSCEIVER NETWORK - A transmitting device comprises a plurality of distributed transceivers, a baseband processor and a network management engine. Data streams are generated at baseband by the baseband processor. Diversity coding such as space-time coding may be performed over the generated data streams in the baseband. The transmitting device concurrently transmits each of the coded streams in a same radio frequency (RF) band to a receiving device over the entire distributed transceivers through associated antennas. When needed, the network management engine may identify one or more auxiliary devices providing available transceivers and antenna beamformers to the transmitting device for sharing. Beam patterns and antenna orientations may be determined for associated antennas of the available transceivers for the transmitting device. Each of the coded data streams in the same radio frequency band may be transmitted to the receiving device over the entire available transceivers for the transmitting device through the associated antennas. | 2013-04-18 |
20130094545 | APPARATUS AND METHOD FOR TRANSMITTING MULTIMEDIA DATA IN HYBRID NETWORK - An apparatus and a method for transmitting multimedia data in a hybrid network are provided. The apparatus includes a payload part including at least one of first data synchronized according to a time to be reproduced and second data other than the first data, a first header part including information on the payload part, a packet part for generating a packet, the packet part including a second header part including information on the packet, and a transceiver for generating and transmitting a signal including the payload part, the first header part, and the packet part to the hybrid network. | 2013-04-18 |