14th week of 2015 patent applcation highlights part 31 |
Patent application number | Title | Published |
20150092706 | DEVICE TO DEVICE USER EQUIPMENT AND BASE STATION - A device to device (D2D) user equipment and a base station are provided. The D2D user equipment includes a transceiver and a processor. The transceiver receives a wireless signal having a hybrid access channel carrying a D2D hybrid access map. The processor is electrically connected to the transceiver retrieves the D2D hybrid access map from the hybrid access channel. The D2D hybrid access map indicates a D2D resource block. A first D2D user equipment transmits a D2D hybrid access request to a second D2D user equipment via the D2D resource block and the second D2D user equipment transmits a D2D hybrid access response to the first D2D user equipment via the D2D resource block. Accordingly, the first D2D user equipment and the second D2D user equipment perform D2D data transmission according to the D2D data transmission information carried in the D2D hybrid access response. | 2015-04-02 |
20150092707 | METHOD AND APPARATUS FOR PERFORMING ACTIVATION/DEACTIVATION OF SERVING CELL IN WIRELESS COMMUNICATION SYSTEM SUPPROTING DUAL CONNECTIVITY - Provided is an apparatus and method for performing activation/deactivation of a serving cell in a wireless communication system supporting dual connectivity. The method for performing activation/deactivation of serving cell by a user equipment in a wireless communication system includes configuring a dual connectivity with at least two different base stations based on dual connectivity configuration information received through RRC (Radio Resource Control) message from a base station, receiving activation/deactivation information about secondary serving cell configured for the UE from each of two different base stations, and selectively applying the activation/deactivation information about the secondary serving cell configured for the UE based on information including the secondary serving cell provided by the base station or information about the base station providing the secondary serving cell configured for the UE. | 2015-04-02 |
20150092708 | ADAPTIVE RECEPTION OF LTE IN A SINGLE RADIO WIRELESS DEVICE - Methods, apparatuses and computer-readable media are described that configure wireless circuitry of a wireless device. The wireless device establishes a connection to a first wireless network using first and second receiving signaling chains. The wireless device obtains a configuration processing delay time for the first wireless network and sends a first channel status report having a rank indicator value of one before starting a tune-away event at a time based on the obtained configuration processing delay time. The wireless device reconfigures at least one of the radio frequency signaling chains to receive signals from a second wireless network during the tune-away event. The wireless device subsequently sends a second channel status report having a rank indicator value greater than one before ending the tune-away event and reconfiguring the at least one of the radio frequency receive signaling chains back to the first wireless network. | 2015-04-02 |
20150092709 | METHOD AND APPARATUS FOR LTE CELL SEARCH USING MULTIPLE RECEIVERS OF A MOBILE DEVICE - A method using multiple receivers of a wireless communication device to accelerate cell selection and reselection is disclosed. Multiple receivers of the wireless device are used to implement carrier aggregation in LTE connected mode. The multiple receivers of the wireless device are used to search for cells concurrently across multiple radio frequency bands and/or multiple radio access technologies during cell selection and/or cell reselection procedures. A first receiver and a second receiver of the wireless device each search for cells over different radio frequency bands simultaneously, and accordingly the cell selection and reselection time is effectively reduced compared to using only one receiver. Multiple receivers are also used concurrently, in parallel, to accelerate inter-frequency cell detection and measurement and for inter-RAT searches and measurements. | 2015-04-02 |
20150092710 | METHOD AND APPARATUS FOR DEVICE-TO-DEVICE COMMUNICATION - A method includes scheduling at least one resource for a Device-to-Device (D2D) transmission control channel (DCCH) carrying a D2D control information (D2DCI) message, transmitting, by a first UE, the DCCH on the at least one DCCH resource to at least one second UE, scheduling at least one resource for a D2D data channel (DDCH), and transmitting, by the first UE, the DDCH on the at least one DDCH resource to the at least one second UE. A UE includes one or multiple antenna, and a processing circuitry configured to schedule at least one resource for a DCCH, transmit the DCCH on the at least one DCCH resource, to at least one second UE through the one or more multiple antenna, schedule at least one resource for a DDCH, and transmit the DDCH on the at least one DDCH resource, to the at least one second UE. | 2015-04-02 |
20150092711 | System and Method for Searching for Grants and Assignments in a PDCCH - A method performed at a network component for indicating a number of grants in a transmission and a corresponding method performed at a station to limit a search for the grants to the number indicated in the transmission. In one embodiment, the transmission includes physical downlink control channel (PDCCH) information and modified cyclic redundancy check (CRC) information, the modified CRC information being generated from CRC information for the PDCCH information and a modifier representing a number of grants. The station determines the number of grants from the modified CRC information, performs a search for a first grant within the PDCCH information and terminates the search upon identifying the first grant, when the number of grants is the first number. | 2015-04-02 |
20150092712 | System and Method for Searching for a Control Channel - A method performed at a base station and a corresponding method performed at a station receiving a transmission from the base station. The methods relate to signaling the station as to a number of PDCCH information that is included in the transmission so the station may terminate a search when the station has identified the PDCCHs in the transmission. The method performed by the station includes receiving the transmission that includes at least one PDCCH information, each PDCCH information having a respective mapped downlink control information (DCI). The method further includes detecting one of the PDCCH information in the transmission and determining lengths of information bits of the DCI and the PDCCH information. The method also includes terminating a search for a further one of the PDCCH information when a first type of padding is used for the mapping of the DCI over the PDCCH information based on the lengths. | 2015-04-02 |
20150092713 | COMPONENT CARRIER ACTIVATION/DEACTIVATION IN MULTI-CARRIER SYSTEMS - Methods and apparatus for addressing wireless transmit/receive unit (WTRU) behavior in response to configuration, configuration parameters and access issues related to the activation/deactivation process when the WTRU may be configured with multiple serving cells or carrier aggregation. | 2015-04-02 |
20150092714 | DEFERRED ACCESS METHOD FOR UPLINK PACKET CHANNEL - The equipment and techniques disclosed herein introduce a deferred acknowledgement (DACK), in the context of a protocol for a wireless station to request and obtain access to a wireless network resource for communication of one or more data packets. Essentially, a network node, such as a wireless base station, sends the DACK instruction in response to the access request telling the requesting station that the node has heard the request but that the requesting station should defer its transmission. The requesting station need not back off and re-initiate its access request. Instead, the requesting station waits for a later acknowledgement (ACK) granting access to a resource as requested. Although the DACK provides additional signaling, this technique can still utilize a fast ACK type message, that is to say a relatively short signaling packet. | 2015-04-02 |
20150092715 | METHOD AND APPARATUS FOR TRANSMITTING RECEPTION CONFIRMATION IN WIRELESS SYSTEM - Provided arc a method and an apparatus for transmitting a reception confirmation in a wireless system. A terminal determines at least one downlink sub-frame for ACK/NACK feedback from each of a plurality of serving cells and determines the number of ACK/NACK bits for the plurality of serving cells. The terminal generates bundled ACK/NACK bits by arraying the ACK/NACK bits in the ascending order of the cell index of the plurality of serving cells, and transmits the bundled ACK/NACK bits. | 2015-04-02 |
20150092716 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system. More specifically, the present invention relates to a method for transmitting control information through a PUCCH in a wireless communication system and an apparatus thereof, comprising the steps of: spreading modulation symbol sets to first slot, by using a first code; spreading modulation symbol sets to second slot, by using a second code, wherein the length of the second code is varied according to the number of SC-FDMA symbols for PUCCH transmission. | 2015-04-02 |
20150092717 | INTER-CELL INTERFERENCE COORDINATION IN A WIRELESS COMMUNICATION SYSTEM - A method and a first base station are described for setting measurement resources. Information about setting of a blank subframe of a second base station among a plurality of subframes is received. Resources are set in which a terminal will perform measurement using the information about setting of the blank subframe of the second base station. The information about setting of the blank subframe of the second base station includes a bitmap indicating blank subframes and non-blank subframes of the second base station. In addition, the resources in which the terminal will perform measurement are determined among the blank subframes indicated by the bitmap. | 2015-04-02 |
20150092718 | METHOD OF RESOURCE BLOCK (RB) BUNDLING - A method of sizing bundled resource blocks (RBs) having at least one user equipment (UE)-specific demodulation reference signal in an orthogonal frequency division multiplexing (OFDM) system is disclosed. According to one embodiment, the method includes: receiving configuration information related to at least one UE-specific demodulation reference signal; receiving a plurality of resource blocks (RBs) from a network, wherein the plurality of resource blocks comprises the at least one UE-specific demodulation reference signal, at least one cell-specific demodulation reference signal or data, wherein a number of the plurality of RBs is dependent on a size of a system bandwidth, the size of the system bandwidth corresponding to one of four size ranges; and processing at least one of the received plurality of RBs by bundling the plurality of RBs into RB bundles, wherein the size of each RB bundle is based on the one of the four size ranges. | 2015-04-02 |
20150092719 | Arrangement and Method for Identifying PUCCH Format 3 Resources - The disclosure relates to a user equipment for a wireless communications system, and to a related method for identifying a resource to use for a transmission of control information on a physical uplink control channel, PUCCH, format 3. The method comprises receiving ( | 2015-04-02 |
20150092720 | METHODS AND SYSTEMS FOR PROVIDING EFFICIENT OPERATION OF MULTIPLE MODES IN A WLAN SYSTEM - A method and apparatus that applies medium access control (MAC) transmission opportunity (TXOP) protection for multiple mode operation in a WLAN system. In particular, MAC mechanisms are defined to support multiple mode CTS frames, and multiple mode CF-End frames sent by the AP, each in a format appropriate for the corresponding mode which may also apply to a single mode. MAC mechanisms permit truncation of TXOP duration for releasing the unused portion of the TXOP when no further data for transmission is available. Release of unused protected TXOP is possible for both protected AP transmissions and STA transmissions. | 2015-04-02 |
20150092721 | TRANSMISSION OF SCHEDULING ASSIGNMENTS IN MULTIPLE OPERATING BANDWIDTHS - Methods and apparatuses are described for the transmission of Scheduling Assignments (SAs) from a base station to User Equipments (UEs) for data reception in the downlink or data transmission in the uplink of a communication system. A method for wireless communication includes receiving a scheduling assignment in a search space on a primary component carrier, the scheduling assignment including information indicating a component carrier on which data is transmitted; and receiving the data on the indicated component carrier. The search space for the primary component carrier is different from a search space for a secondary component carrier. | 2015-04-02 |
20150092722 | METHOD OF NOTIFYING RESOURCE ALLOCATION FOR DEMODULATION REFERENCE SIGNALS - A user equipment receives, from the base station apparatus, bit information. The bit information indicates first information indicating one or more antenna ports and second information indicating a number of layers for downlink data symbols. | 2015-04-02 |
20150092723 | METHOD AND APPARATUS OF TRANSMITTING ACK/NACK - A method for transmitting an uplink signal by a user equipment (UE) in a wireless communication system. The method according to one embodiment includes receiving, by the UE, a physical downlink control channel (PDCCH) via one or more resource units; receiving, by the UE, a physical downlink shared channel (PDSCH) indicated by the received PDCCH; and transmitting, by the UE, a physical uplink control channel (PUCCH) using a PUCCH resource in response to the received PDSCH. An index of the PUCCH resource is determined by adding a first index offset and a second index offset to a lowest index of the one or more resource units. The first index offset is signaled via the PDCCH and the second index offset is signaled via higher layer signaling. | 2015-04-02 |
20150092724 | METHOD, APPARATUS AND SYSTEM FOR SENDING PHYSICAL LAYER SIGNAL - Embodiments of the present invention disclose a method, an apparatus and a system for sending a physical layer signal, where the method for sending a physical layer signal includes: constructing a signal frame of a physical layer signal, where the signal frame includes one single-frequency sequence, the single-frequency sequence is used to enable a receiving apparatus to capture the signal frame in a frequency domain according to the single-frequency sequence, and the single-frequency sequence includes a plurality of single-frequency preset symbols; and sending the physical layer signal based on the signal frame. Applying the present invention can facilitate capturing the signal frame in a frequency domain by a receive end, and therefore, not only impact caused by frequency offset is overcome, but also multipath energy may be used effectively to improve performance of capturing. | 2015-04-02 |
20150092725 | Timer Management in Wireless Communication - This invention relates to techniques for managing a timer used in transmission or reception of data units in wireless communication. To better use the resources in a transceiver, one timer is used. Depending on how the data units being handled, the timer can be used to control a transceiver to retry transmission of data units or purge data units. | 2015-04-02 |
20150092726 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING DATA AND CONTROL INFORMATION THROUGH AN UPLINK IN A WIRELESS COMMUNICATION SYSTEM - An apparatus and method are provided for transmitting data and control information in a wireless communication system. The method includes determining a number of symbols for control information based on a number of data bits and scheduled resources; generating coded control information based on the number of symbols for the control information; generating coded data based on a modulation scheme; multiplexing the coded data and the coded control information; modulating the multiplexed coded control information and coded data by the modulation scheme; and transmitting the modulated coded control information and coded data on a channel based on the scheduled resources. | 2015-04-02 |
20150092727 | Evolved Allocation Retention Policy Solution - The present invention relates to a solution for handling an evolved allocation and retention priority in a telecommunications network. The solution is based on obtaining an evolved ARP, obtaining an authorized ARP based on the evolved ARP, and transmitting this authorized ARP to nodes in the network. Furthermore, the authorized ARP may be included in information elements involved in mobility procedure messages. | 2015-04-02 |
20150092728 | Method and Apparatus for Determining Uplink Control Channel Resources - Embodiments of the present invention provide a method for determining uplink control channel resources; wherein the method includes: receiving, by user equipment (UE), a specific parameter configured for a mapping manner of its enhanced physical downlink control channel (E-PDCCH) by an eNB; and determining its uplink control channel (PUCCH) resources by the UE according to a specific parameter corresponding to the mapping manner of its E-PDCCH and a PUCCH calculation formula. With the embodiments of the present invention, collision of PUCCH resources of different UE is lowered, and/or spectral efficiencies of the PUCCHs are improved. | 2015-04-02 |
20150092729 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - A method and an apparatus are provided for transmitting and receiving control information in wireless communication system. A method includes transmitting, through Radio Resource Control (RRC) signaling, information representative of a set of resource blocks for transmitting the control information; generating the control information; and transmitting the control information based on at least one enhanced Control Channel Element (eCCE), at least one antenna port, and the set of resource blocks. The at least one antenna port is determined according to a starting index of the at least one eCCE and an IDentifier (ID) of the UE, when using localized eCCE allocation within the set of resource blocks. | 2015-04-02 |
20150092730 | COMMUNICATION METHOD FOR ACTIVE AND NON-ACTIVE CARRIERS USING CARRIER AGGREGATION AND AN APPARATUS THEREFORE - A method for a base station to receive an uplink transmission from a user equipment. The method according to one embodiment includes transmitting, to the user equipment, Radio Resource Control (RRC) configuration information for channel status report, the RRC configuration information including information for periodically receiving channel status report from the user equipment; transmitting, to the user equipment, Layer 2 (L2) control information indicating states of the plurality of downlink component carriers, each of the plurality of downlink component carriers being indicated as one of an active state and a non-active state; and performing a procedure for periodically receiving channel status report for a corresponding downlink component carrier from the user equipment in use of the RRC configuration information. According to whether the corresponding downlink component carrier is in the active state or the non-active state at a time for receiving a channel status report, channel status information or no channel status information is received for the corresponding downlink component carrier from the user equipment at the time, respectively. | 2015-04-02 |
20150092731 | COMMUNICATION SYSTEM, MOBILE STATION, BASE STATION, RESPONSE DECISION METHOD, RESOURCE CONFIGURATION DECISION METHOD, AND PROGRAM - It is possible to solve the problem that a downstream control information amount is significantly increased if allocation information is periodically reported because no allocation method of a default E-DCH resource configuration is defined for a preamble signature. A base station and a mobile station decide a default resource configuration by using a total number of resource configurations or a value obtained from the total number. | 2015-04-02 |
20150092732 | FRAME STRUCTURE FOR MEDIUM ACCESS IN BODY AREA NETWORKS (BAN) - A system and method for providing a variety of medium access and power management methods are disclosed. A defined frame structure allows a hub and a node to use said methods for secured or unsecured communications with each other. Contended access is available during a random access phase. The node uses an alternate doubling of a backoff counter to reduce interference and resolve collisions with other nodes attempting to communicate with the hub in the random access phase. Non-contended access is also available, and the hub may schedule reoccurring or one-time allocation intervals for the node. The hub and the node may also establish polled and posted allocation intervals on an as needed basis. The node manages power usage by being at active mode at times during the beacon period when the node is expected to transmit or receive frames. | 2015-04-02 |
20150092733 | SYSTEMS/METHODS OF CARRIER AGGREGATION - Various embodiments of carrier aggregation are provided that increase communications capacity and throughput. According to some embodiments, a receiver may be configured with a plurality of receiver chains and, responsive to an aggregate bandwidth of an overall signal that is to be received by the receiver, a plurality of components of the overall signal, each comprising a bandwidth that is less than a frequency span of the overall signal, are received by a respective plurality of receiver chains. Accordingly, each component of the plurality of components of the overall signal may be received by a respective receiver chain of the plurality of receiver chains of the receiver thus avoiding bandwidth limitations associated with receiver elements. | 2015-04-02 |
20150092734 | CHANNEL ALLOCATION NOTIFYING METHOD, COMMUNICATION METHOD, AND COMMUNICATION APPARATUS - The number of communication channels necessary for communication with a terminal is calculated by using type and volume of data to be transmitted. When calculated number of communication channels is one, a single communication channel is allocated based on quality information of a communication line to the terminal and, when calculated number of communication channels is more than one, then more than one communication channels are allocated based on the quality information. Allocation information used for notifying of allocated communication channels is generated based on virtual channels, which are defined in advance as channel units having a combination of a plurality of consecutive communication channels, and the allocation information is transmitted to the terminal. | 2015-04-02 |
20150092735 | Method for Configuring Resource, Method for Receiving Downlink Control Information, and Terminal Device - A method for configuring a resource, a method for receiving downlink control information, and a terminal device. A method for configuring a narrowband downlink transmission channel resource includes separating one narrowband downlink transmission channel resource from a system downlink data channel resource, so that a machine type communication user equipment (MTC UE) receives downlink control information or downlink data information using the narrowband downlink transmission channel resource; and dividing the narrowband downlink transmission channel resource into one physical downlink data channel resource and multiple enhanced physical downlink control channel resources, where the multiple enhanced physical downlink control channel resources jointly control the one physical downlink data channel resource. The embodiments of the present invention can further decrease a baseband cost of an MTC UE under the premise of ensuring that a capacity of the MTC UE is not limited. | 2015-04-02 |
20150092736 | Multi-Interface WLAN Device with Time Arbitration Messaging - A wireless local area network (WLAN) method and device to provide dual band (DB) operation of the WLAN device, the DB operation including communication in a first frequency band with a first device and communication in a second frequency band with a second device, the WLAN device including first network interface circuitry to support communication in the first frequency band with the first device, second network interface circuitry to support communication in the second frequency band with the second device, and a processor to generate at least one action frame that includes information regarding a duration of time during which the WLAN device will be unavailable for communication, and to enable transmission of the at least one action frame to the first device or to the second device. | 2015-04-02 |
20150092737 | MULTI-INTERFACE WLAN DEVICE HAVING REAL AND VIRTUAL DUAL BAND OPERATION - A wireless local area network (WLAN) method and device including at least one antenna to enable simultaneous dual band (SDB) operation of the WLAN device, the SDB operation including communication in a first frequency band with a first device and communication in a second frequency band with a second device, first network interface circuitry to support communication in the first frequency band with the first device, second network interface circuitry to support communication in the second frequency band with the second device, and a processor to generate an information element including information regarding the SDB operation of the WLAN device, and to enable transmission of the information element to the first device or to the second device. | 2015-04-02 |
20150092738 | METHODS AND APPARATUSES FOR USER EQUIPMENT ASSISTED TIME AND FREQUENCY SYNCHRONIZATION OF SMALL CELLS - Aspects of the present disclosure provide a user equipment (UE) assisted synchronization method in which a small cell can request and obtain time and frequency offset information from one or more UEs currently associated with the small cell, and the small cell can discipline its clock drift accordingly. | 2015-04-02 |
20150092739 | Method of Mapping Physical Resource to Logical Resource in Wireless Communication System - A method of mapping a physical resource to a logical resource in a wireless communication system is described. The method includes dividing a physical frequency band into at least one frequency partition. Each frequency partition is divided into a localized region and a distributed region in a frequency domain. The method further includes mapping the at least one frequency partition into at least one logical resource unit. The localized region is directly mapped into the logical resource unit and the distributed region is mapped into the logical resource unit after rearranging subcarriers within the distributed region. | 2015-04-02 |
20150092740 | Method, Terminal, and Base Station for Retransmitting Message - Embodiments of the present invention disclose a method for retransmitting a message, mainly including notifying, by a terminal, a base station that the terminal is a narrowband terminal when sending a random access preamble to the base station; and when the base station subsequently detects that an error occurs to a message 3 sent by the terminal, instructing, by the base station, through a message 3 retransmission indicator, the terminal to retransmit the message 3, or retransmitting, by the terminal, the message 3 to the base station in a manner for actively retransmitting the message 3. | 2015-04-02 |
20150092741 | METHOD AND APPARATUS FOR PAGING IN MACHINE TO MACHINE OR MOBILE ASSISTED DEPLOYMENTS - A WTRU may be configured to receive configuration information. The received configuration information may be from a base station, and may indicate one or more periodic resources. The periodic resources may be used in peer to peer discovery, and may include time and frequency resources. If the WTRU is a discoverable peer, the WTRU may be configured to transmit an identification in the periodic resources. The WTRU may transmit an identification that is associated with a service. The WTRU may be configured to access a wireless network in response to another WTRU desiring communication. | 2015-04-02 |
20150092742 | SEQUENCE GENERATION AND TRANSMISSION METHOD BASED ON TIME AND FREQUENCY DOMAIN TRANSMISSION UNIT - A method of transmitting, by a user equipment, control information in a communication system. The method according to one embodiment includes multiplying transmission information corresponding to the control information by a frequency direction sequence, of which length corresponds to a number of subcarriers in a resource block, to generate a first output signal; multiplying the first output signal by a time direction sequence, of which length corresponds to a number of symbols used for transmission of the control information in a transmission unit, to generate a second output signal; and transmitting the second output signal in the transmission unit. | 2015-04-02 |
20150092743 | NON-CELLULAR LINK INTEGRATION WITH CELLULAR NETWORKS - Improved non-cellular (e.g., Wi-Fi) link integration with a cellular (e.g., LTE) network is described. The improved link integration can relate to utilizing an eNodeB device (e.g., residing in a radio access network portion of a cellular network) as an anchor point rather than a packet data network gateway device (e.g., residing in a core network portion of the cellular network) utilized by other approaches. The improved link integration can maintain full compliance with or support for other approaches, and can reduce signaling overhead, simplify quality-of-service management, and/or provide a more rapid reaction to changes of access, particularly in cases where the eNodeB device and a non-cellular access point device are co-located. | 2015-04-02 |
20150092744 | HYBRID MANAGEMENT OF HANDOVERS IN A SELF ORGANIZING NETWORK (SON) - The present disclosure presents a method and an apparatus for hybrid management of handovers in a self organizing network. For example, the disclosure presents a method for transmitting, via a transmitting component at the base station, handover signaling data from the base station to a network entity, wherein the base station is one of a plurality of base stations transmitting handover signaling data to the network entity, receiving, at the base station, feedback associated with one or more handover parameters of the base station, wherein the feedback is received from the network entity and includes an indication of an amount of handover signaling data generated by the base station or the plurality of base stations, and updating the one or more handover parameters based on the feedback received and local information available at the base station. As such, hybrid management of handover in a self organizing network may be achieved. | 2015-04-02 |
20150092745 | METHODS AND DEVICES FOR AVOIDANCE OF PARTIAL OFFLOADING OF TRAFFIC BEARERS - A method, implemented in a first node, that is in communication with a second node and a mobile device, includes determining a traffic type of a first traffic bearer within a packet data network connection between the second node and the mobile device. The method further includes marking the first traffic bearer as movable or non-movable based on the determined traffic type. The method also includes in response to determining that the first traffic bearer has been marked as non-movable, marking all other traffic bearers in the packet data network connection between the second node and the mobile device as non-movable. | 2015-04-02 |
20150092746 | ENHANCEMENT ON RADIO LINK FAILURE REPORT TO RECORD NECESSARY TIMING DETAILS FOR A DUAL-THRESHOLD HANDOVER TRIGGER EVENT - A system and method in which a Radio Link Failure, RLF, report from a User Equipment, UE, provides system time-based timestamps to enable a source node to correctly analyze the real cause of an RLF associated with a handover. The timestamps are provided for the latest fulfillment of each event-specific entering condition associated with a handover-triggering event and for the occurrence of the RLF. The recorded timestamps are sent as part of RLF-reporting information to be forwarded to the source node to assist the source node in adjusting event-specific threshold(s) as well as other non-threshold related handover parameters such as the Time To Trigger, TTT, period, the time delay between a UE's transmission of its Measurement Report and the source node's transmission of the handover command, and the like, to reduce similar RLFs in the future. The generation of timestamps does not waste the UE's processing resources or battery power. | 2015-04-02 |
20150092747 | MOBILE TELEPHONE VOIP/CELLULAR SEAMLESS ROAMING SWITCHING CONTROLLER - A nomadic server and a related system provides seamless roaming for a mobile communication device between different types of wireless networks, such as WiFi and cellular networks for voice, data and video communication. Use of the nomadic server enables a combination of WiFi and cellular networks for providing access to the cellular phones and make use of the VOIP networks for switching the calls wherever possible. The nomadic server is a telephone communication processing and switching server that will “hold” the present, in-progress telephone communications without dropping, while roaming without losing the present, in-progress communication. For example, a telephone communication can be seamlessly switching between VOIP and cellular telephone networks using the nomadic server. Nomadic server resources interface with the VOIP and cellular network switches to provide the hand-off between networks. This approach enables switching of telephone communications over a VOIP network wherever possible either through WiFi or through cellular networks. | 2015-04-02 |
20150092748 | METHOD FOR CONTROLLING TRANSMISSION, NETWORK DEVICE, AND TERMINAL - Embodiments of this application relate to a method for controlling transmission, a network device, and a terminal. The method includes: determining, by a first radio access network device according to a service transmission condition of a terminal in a first single-mode wireless communications system, that a multimode wireless communications system comprises at least two wireless communications systems transmits a service for the terminal; and sending, by the first radio access network device, first control information to the terminal, where the first control information includes link information of the at least two wireless communications systems, so that the terminal switches a service, which is transmitted in the first single-mode wireless communications system, to the multimode wireless communications system according to the link information of the at least two wireless communications systems. In this way, resource utilization of a wireless communications network is improved. | 2015-04-02 |
20150092749 | HANDOFF OF A MOBILE STATION BETWEEN PACKET-SWITCHED AND CIRCUIT-SWITCHED WIRELESS DOMAINS - A first mobility management entity (MME) is configured to cooperate with a first access network controller to provide a circuit switched service to a mobile station while the mobile station is attached to a packet switched wireless access network in a first coverage area. A second MME is configured to cooperate with the first access network controller to provide a circuit switched service to the mobile station when the mobile station has moved from the first coverage area to the second coverage area. A home subscriber system is operated to provide, to the second MME, information identifying the first access network controller as serving the mobile station to enable the second MME to initiate handoff of the mobile station from the packet switched wireless access network to the circuit switched wireless access network. | 2015-04-02 |
20150092750 | PRIMARY SECONDARY CELL CHANGE METHOD AND BASE STATION - Embodiments of the present invention disclose a primary secondary cell change method and a base station. The primary secondary cell change method in the embodiments of the present invention includes: determining, by a primary base station, to change a first primary secondary cell served by a secondary base station, and selecting a second primary secondary cell from cells served by the secondary base station; sending, by the primary base station, a first message to the secondary base station, which is used to request the secondary base station to change the primary secondary cell, where the first message includes an identity of the second primary secondary cell; and sending, by the primary base station, a second message to a user equipment UE, which is used to request the UE to use the second primary secondary cell. | 2015-04-02 |
20150092751 | CELL RANGE EXPANSION ELASTICITY CONTROL - In some aspects, a method for carrying out load balancing between cells in a heterogeneous network includes measuring loads within macro clusters in the network. The method additionally includes identifying one or more macro clusters experiencing unbalanced load conditions, and sending balancing indicators to one or more cells in the identified macro cluster(s). In other aspects, a method for carrying out load balancing in a heterogeneous network includes reporting cell loads within a macro cluster, and monitoring for balancing indicators. The method further includes responding to a balancing indicator by iteratively adjusting a value of an individual cell offset for a cell until one or more conditions is satisfied. Example conditions include accomplishment of handover, to or from the cell, of one or more low mobility User Equipment (UE), and making a determination that the value of the individual cell offset has reached a threshold prohibiting further adjustment. | 2015-04-02 |
20150092752 | GRANT PROCESSING FOR FLEXIBLE BANDWIDTH CARRIER SYSTEMS - Methods, systems, and devices are described for control information processing and utilization in a wireless communications system that utilizes one or more flexible bandwidth carriers. The methods may include receiving control information over a first channel of one of the one or more flexible bandwidth carriers, determining a processing time for the received control information over the first channel of the one of the one or more flexible bandwidth carriers based on a processing time of control information for another bandwidth carrier, and utilizing the received control information over the first channel of the one of the one or more flexible bandwidth carriers during a first transmission time interval of the first channel of the one of the one or more flexible bandwidth carriers subsequent to the processing time for the received control information over the first channel of the one of the one or more flexible bandwidth carriers. | 2015-04-02 |
20150092753 | HIGH PRECISION ACCESS POINT TO ACCESS POINT SYNCHRONIZATION IN AN INDOOR POSITION LOCATION SYSTEM - Methods, systems, and devices are described that provide for high precision synchronization between pairs of APs within a tracking area of a position location network. These tools and techniques may provide for incrementally synchronizing timers and oscillators located at respective APs. An AP may transmit a course frequency and timing acquisition signal that a second AP utilizes to estimate a frequency offset and/or time offset. The AP may transmit a subsequent fine frequency and timing acquisition signal which may be used to accurately adjust the estimated frequency offset and/or time offset of the second AP. The second AP may thus incrementally synchronize its oscillator(s) and/or timer(s). These techniques may be utilized over a multi-hop wireless network. The methods, systems, and devices may be applicable to single- and multi-floor location tracking systems. | 2015-04-02 |
20150092754 | HIGH PRECISION NETWORK SYNCHRONIZATION IN AN INDOOR POSITION LOCATION SYSTEM - Methods, systems, and devices for synchronizing a position location network. The methods, systems, and/or devices may provide for designating as a master AP one AP from a network. The master AP may broadcast synchronization signals, which other APs in the network may use to synchronize their respective oscillators and/or clocks. In some cases, the master AP and/or a network server (e.g., a tracking management server) may designate acting master APs. The acting master APs may, for example, broadcast synchronization signals to neighboring APs. The acting master APs and/or the master AP may maintain lists of synchronized APs, which may be transmitted among APs and/or to a network server. | 2015-04-02 |
20150092755 | CONTROLLING UPLINK TRANSMISSIONS FROM INTERFERING STATIONS - An access point to transmit a first message that instructs stations (STAs) to bypass uplink transmissions for a first time interval indicated in the first message. The access point is to transmit one or more first messages at a transmission power sufficient for a first portion of the STAs to decode the one or more first messages and insufficient for a second portion of the STAs to decode the one or more first messages. The transmission power can be determined based on minimum transmit powers associated with the STAs. Subsequent second time intervals can be determined based on uplink transmissions received from the STAs during the first time interval. | 2015-04-02 |
20150092756 | METHODS, APPARATUSES, AND COMPUTER PROGRAM PRODUCTS FOR GENERATING FRACTIONAL GUARD PERIODS - A method, system, and computer program product is provided for transmitting output symbols in sub-slots that each have a pre-determined length. A UE generates a first output symbol having a first symbol length, and transmits the first output symbol with a guard period having a guard period length. During the guard period, no transmission is made by the UE. The sum of the first symbol length and the guard period length is less than or equal to the predetermined length. Further, the UE generates a plurality of other output symbols that each have the predetermined length. Then, immediately following the transmission of the first output symbol, the UE transmits the plurality of other output symbols. | 2015-04-02 |
20150092757 | HARQ-ACK Resource Allocation and Use for eIMTA - A downlink data transmission is performed in a downlink subframe. One or more resources are determined. The one or more resources are to be used for transmission or reception of error information for the received transmission in an uplink subframe based at least on an association set between one or more downlink or special subframes and an uplink subframe. The determined association set depends on a downlink reference configuration. The association set for each uplink subframe comprises a grouping of the downlink or special subframes into at least two groups. An association set is defined only for the subframes which are uplink subframes in a corresponding downlink reference configuration. The error information is transmitted or received using the determined one or more resources in the uplink subframe. Methods, apparatus, programs, and program products are disclosed. | 2015-04-02 |
20150092758 | PRIORITIZATION OF DIFFERENT OPERATORS IN SHARED SPECTRUM - Methods, systems, apparatuses, and devices are described for wireless communications. In one method, an opportunity may be identified for a first operator to perform a clear channel assessment (CCA) for a shared spectrum. The opportunity may be based on a priority of the first operator with respect to at least one other operator associated with the shared spectrum. The CCA may be performed for the shared spectrum during the identified opportunity to determine whether the shared spectrum is available for a transmission during a transmission interval. | 2015-04-02 |
20150092759 | Low-Latency Synchronous Clock Distribution and Recovery for High-Speed OFMDA-Based Mobile Backhaul - A communication system includes an OFDMA transmitter (Tx) at an optical line terminal (OLT) generating an OFDMA signal by assigning orthogonal subcarriers to different cell sites through digital logic, an electrical multiplexer combining the electrical OFDMA signal with two electrical clock signals, and an optical intensity modulator intensity-modulating the resulting joint electrical OFDMA+clocks signal; an optical multiplexer receiving aggregate OFDMA signals on multiple wavelengths with tight DWDM λ-spacing; a remote node (RN) receiving the OFDMA signals, such that each wavelength is distributed by a de-multiplexer (Demux) to designated general small cell area, to which cell sites are connected by optical splitters; and an optical network unit (ONU) to directly photodetect and digitize received OFDMA signal, wherein downstream (DS) information for each cell is digitally extracted and prepared for wireless radio frequency (RF) transmission over an air interface, and an electrical splitter and bandpass filters to separate the OFDMA and clock signals for DSP-free clock recovery. | 2015-04-02 |
20150092760 | SYSTEMS AND METHODS FOR ACTIVITY COORDINATION IN MULTI-RADIO TERMINALS - A wireless communication device is provided with a first radio module and a second radio module inside. The first radio module performs wireless transceiving according to a plurality of first traffic patterns which each indicates allocations of a plurality of first slots for a plurality of forthcoming transmitting or receiving operations, respectively. The second radio module determines an indicator indicating at least one of a plurality of second traffic patterns which each indicates allocations of a plurality of second slots for a plurality of forthcoming transmitting or receiving operations, respectively. Particularly, one or more allocations of the second slots are selectively determined according to the first traffic patterns. Also, the second radio module transmits the indicator to a peer communication device, so that the peer communication device performs transmitting or receiving operations according to the indicator. | 2015-04-02 |
20150092761 | METHOD FOR TRANSMITTING UP LINK CONTROL SIGNAL IN MOBILE COMMUNICATION SYSTEM - The present invention relates to a method for transmitting uplink control information in a mobile communication system; and, more particularly, to a method for effectively forming uplink control information transmitted through a downlink from a base station to a terminal in a mobile communication system for providing a packet service and transmitting the uplink control information with minimum radio resources occupied. The method includes the steps of generating uplink control information; allocating the uplink control information to a downlink-shared radio resource for packet data transmission based on downlink scheduling information; and transmitting the radio resource to a terminal. The present invention is applied to a mobile communication system. | 2015-04-02 |
20150092762 | METHOD, DEVICE, AND COMMUNICATION SYSTEM FOR TRANSMISSION CONTROL - A transmission control method may include: determining, by an access device, a distribution of a downlink transmission time slot in a first subframe of a first wireless frame, where the first subframe is a special subframe in a case that the first wireless frame has a first configuration periodicity, or the first subframe is a downlink subframe in a case that the first wireless frame has a second configuration periodicity; generating, by the access device, control information for indicating the determined distribution of the downlink transmission time slot in the first subframe; and sending, by the access device, the first wireless frame to a user terminal, where the control information is carried in a downlink control channel of the first subframe of the first wireless frame, or the control information is carried in a previous subframe of the first subframe of the first wireless frame. | 2015-04-02 |
20150092763 | METHOD FOR TRANSMITTING AND RECEIVING TRAFFIC INDICATION MAP IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - Disclosed are a method for transmitting and receiving a traffic indication map (TIM) in a wireless communication system and a device for supporting the same. More particularly, the method for transmitting a traffic indication map comprises the step of transmitting a TIM to a STA through a beacon frame, wherein the TIM includes: a block bitmap field for indicating a subblock including a STA in which buffered downlink data exists for respective N (N are two or more natural numbers) blocks; and a block control field for indicating an encoding method for the bitmap field. | 2015-04-02 |
20150092764 | COMMUNICATION APPARATUS, DATA PROCESSING APPARATUS, CONTROL METHOD THEREOF, AND RECORDING MEDIUM - A communication apparatus establishes communication with a data processing apparatus via a first network created by the data processing apparatus, receives an instruction to transmit data to an external apparatus different from the data processing apparatus after the communication with the data processing apparatus is established, transmits, to the data processing apparatus, a notification for terminating the communication with the data processing apparatus and a notification for causing the data processing apparatus to continue the first network, if the instruction is received, and establishes communication with the external apparatus via a second network after the communication with the data processing apparatus is terminated. | 2015-04-02 |
20150092765 | IMPLANT ACCESS IN THE MEDICAL IMPLANT COMMUNICATIONS SERVICE BAND - A system and method for providing communications between a hub (medical controller) and a node (an implant) are disclosed. The hub selects an operating channel within a channel group in accordance with applicable regulations, and transmits signals to facilitate communications with nodes. A node sequentially tunes to individual channels within the group, monitoring each channel for a hub transmission during a monitoring period. If a hub transmission is detected, the node stays on the current channel. Otherwise, the node tunes to a next channel in the channel group. The hub transmission may be directed to unconnected nodes, to a single connected node, or to a group of connected nodes. The node transmits a first frame to the hub at a designated transmission time and receives a response. The node reports an emergency by sequentially transmitting emergency frames on each of the channels until receiving an acknowledgment from the hub. | 2015-04-02 |
20150092766 | LOCALIZATION, SYNCHRONIZATION AND NAVIGATION USING PASSIVE SENSOR NETWORKS - A method for sensor operation includes deploying a network of sensors ( | 2015-04-02 |
20150092767 | RECEIVER - A receiver node for use in a digital broadcast system, comprising a receiver configured to receive a signal containing a service encoded with an error correcting code for decoding and wherein said receiver is further configured to ignore the signal during an ignore period, the node configured to use said error correcting code and the encoded service received outside the ignore period to reconstruct the part of the service ignored by the receiver. | 2015-04-02 |
20150092768 | METHODS AND APPARATUS FOR DISCOVERY SIGNALS FOR LTE ADVANCED - A system and method for enhanced cell detection by a User Equipment (UE) is provided. The UE includes a transceiver configured to receive a discovery reference signal (DRS) occasion from at least one transmission point. The DRS occasion comprising a set of consecutive DRS sub-frames. The UE also includes processing circuitry configured to: in response to detecting a physical cell identity (PCID) of a Primary Synchronization Signal (PSS)/Secondary Synchronization Signal (SSS)/Cell-Specific Reference Signal (CRS) that is the same as a reference PCID for a configured Channel State Information-Reference Signal (CSI-RS) resource, the processing circuitry attempts to detect or measure the CSI-RS using the timing obtained from the PSS/SSS/CRS; and in response to not detecting a PCID of PSS/SSS/CRS that is the same as the reference PCID for a configured CSI-RS resource (TP), the processing circuitry does not attempt to detect or measure the CSI-RS. | 2015-04-02 |
20150092769 | Protocol Translations for Internet Services - An Internet protocol Multimedia Subsystem (IMS) gateway application server includes an originating application server module adapted to invoke call control services in response to requests initiated by a voice over Internet Protocol (IP) (VoIP) client associated with a communication device such as an IP telephone. Disclosed gateway application servers include a proxy server module adapted to notify the communication client of session control messages intended for the communication device. | 2015-04-02 |
20150092770 | EMULATING CIRCUIT SWITCHING IN ETHERNET USING AN ETHERNET CIRCUIT HEADER - A device for emulating circuit switching in Ethernet using an Ethernet circuit header (ECH) includes a node of a network that is configured to receive a packet. A control module may be configured to determine that a destination address portion of a data frame associated with the packet matches a predefined format. A parser module may be configured to parse an ECH portion of the destination address to identify a circuit-identification (ID). A look-up module may be configured to look up the circuit ID in a circuit-ID table using at least one of a plurality of key options to generate a look-up-result data. The control module may be configured to use the look-up-result data to direct the packet to a destination interface of a destination node. | 2015-04-02 |
20150092771 | VIDEO ROUTER - Video routers with integrated control layers. The video routers include line cards and fabric cards coupled to a controller communication network. The line cards and fabric cards include crosspoint switches and card controllers. Each card controller controls the operation of the corresponding crosspoint switches. Each crosspoint switch includes a plurality of switch input terminals and switch output terminals coupled to a backplane, providing signal communication paths between the line and fabric cards. The configuration of at least some of the crosspoint switches may be controlled by the controller on the same card and on other cards. The video router may include a switch configuration table to track the coupling of input and output terminals through each of the cross-point switches. Each of the controllers can access the configuration table. The configuration table may be recorded in a central location or may be distributed across multiple locations or both. Some of the locations may be in some of the controllers. The video routers include one or more supervisors which may provide routes to the controllers in response to routing requests to allow particular data streams to be routed from a particular input port to a particular output port. | 2015-04-02 |
20150092772 | SYSTEM AND METHOD OF CROSS-CONNECTION TRAFFIC ROUTING - Methods and systems are disclosed for routing traffic between Virtual Routing and Forwarding (VRF) devices. In one aspect, a method for routing traffic includes receiving traffic from a routing device associated with a customer. A control portion of the traffic may include an imported route target. The method further includes, based on the route target in the control portion of the traffic, consulting a table to determine an exported route target and, based on the determined exported route target, determining a destination device and routing the traffic to that device. In some embodiments, routing and/or destination devices may be provisioned to the customer on an exclusive or non-exclusive basis. Systems and computer-readable media are also disclosed for implementing the above-described method. | 2015-04-02 |
20150092773 | TRANSMISSION CONTROL APPARATUS AND TRANSMISSION CONTROL METHOD - A transmission control apparatus includes: a communication unit communicating with each of communication apparatuses, which are included in a communication system in which communication is executed via one relay apparatus, via the relay apparatus; a determination unit determining, as a transmission apparatus transmitting content data indicating a content to be transmitted, the apparatus with higher transmission quality between the apparatus and the relay apparatus in the communication system based on quality information of each communication apparatus, which is received by the communication unit and includes information regarding the transmission quality between the relay apparatus and the communication apparatus; and a transmission control unit allowing the transmission apparatus determined by the determination unit to concurrently transmit the content data indicating the content to the respective apparatuses of the communication system excluding the transmission apparatus. | 2015-04-02 |
20150092774 | METHOD AND COMMUNICATION SYSTEM FOR SELECTING A TRANSMISSION MODE FOR TRANSMITTING PAYLOAD DATA - A transmission mode selection for packet-oriented transmission of useful data between a first and a second communication device is provided, where lists of transmission modes for the communication devices are transmitted to a quality-of-service device. The quality-of-service device uses available transmission resources to select one or more transmission modes from the lists such that the quality of service, which is dependent on the selected transmission modes, can be assured by the available transmission resources. The selected transmission modes are transmitted to a connection controller which prompts further selection of a transmission mode from the transmission modes for the communication devices. The useful data are then transmitted between the communication devices using the transmission mode selected by the further selection. | 2015-04-02 |
20150092775 | USING CONTEXT LABELS TO SCALE MAC TABLES ON COMPUTER NETWORK EDGE DEVICES - In one embodiment, an access component of a local network edge device receives traffic, and generates a frame for the traffic that includes a remote context label that identifies an access component of the remote network edge device to which the traffic is to be forwarded upon arrival at the remote network edge device, and a virtual circuit label corresponding to a particular virtual service of the traffic. The local network edge device forwards the frame towards the remote network edge device. In another embodiment, the frame may be received at a core component of the remote network edge device, an in response to the remote context label identifying an access component of the remote network edge device, forwarded to the access component, which determines the particular virtual service, and forwards the traffic from the frame out the access component towards an endpoint for the traffic. | 2015-04-02 |
20150092776 | Virtual LDP Session - A receiving node receives a virtual LDP initialization (vInit) message from a first node, where the vInit message comprises a request to establish a vLDP session between a requesting node and a target node. If the receiving node does not own a destination address of the vInit message, the receiving node is determined to be a relay node. The relay node inserts a relay label into the vInit message, where the relay label is an outgoing label that the relay node uses to reach the first node, and forwards the vInit message toward the destination address. If the receiving node owns the destination address, the receiving node is determined to be the target node, which extracts a stack of relay labels from the vInit message. The relay labels are used to define a return path to the requesting node for messages transmitted over the vLDP session. | 2015-04-02 |
20150092777 | INTEGRATED CIRCUIT, CODE GENERATING METHOD, AND DATA EXCHANGE METHOD - An integrated circuit, a code generating method, and a data exchange method are described. The integrated circuit includes a plurality of field effect transistors, a plurality of sense-amplifiers, and a processing circuit. Each field effect transistor is configured to represent an address in a mapping table and includes a source, a drain, a channel and a gate. Each sense-amplifier is connected to the drain and configured to sense an electric current from the drain and identify a threshold voltage of the corresponding field effect transistor. The processing circuit is configured to categorize each of the threshold voltages identified by the corresponding sense-amplifiers into a first state and a second state and mark the state of each of the threshold voltages at the corresponding address in the mapping table. | 2015-04-02 |
20150092778 | Tracking Prefixes of Values Associated with Different Rules to Generate Flows - Some embodiments provide a method for a forwarding element that forwards packets. The method receives a packet. The method consults a tree structure to generate a wildcard mask. The consulting includes traversing the tree structure by tracing a set of bits from the packet header and un-wildcarding the corresponding set of bits from the wildcard mask. The method identifies a matching rule for the packet. The method generates a flow based on the matching rule and the wildcard mask. The flow is used to process each other packet that matches each un-wildcarded bit of the flow. | 2015-04-02 |
20150092779 | SENDING PACKETS WITH EXPANDED HEADERS - In one embodiment, the present invention is directed to method for receiving a packet in a first agent, where the packet includes a first packet header with an expanded header indicator. Based on this indicator, the agent can determine if the packet includes one or more additional packet headers. If so, the agent can next determining if it supports information in the additional packet header based on a header identifier of the additional header. Other embodiments are described and claimed. | 2015-04-02 |
20150092780 | Label Distribution Method and Device - Embodiments of the present invention provide a label distribution method and device. A first routing device sends a first BGP update message including a first VPN instance identifier and a first RT to a second routing device. The first routing device receives a second BGP update message including a second VPN instance identifier and a second RT. The first routing device allocates a first VPN instance label to a second VPN instance after the second routing device determines that the first RT is equal to the second RT. The first routing device sends a third BGP update message including the first VPN instance label to the second routing device. | 2015-04-02 |
20150092781 | Systems and Methods for Optimized Route Caching - A method for optimized route caching includes comparing a destination address of a network packet to a first set of prefixes in a routing cache, and comparing the destination address to a second set of prefixes in a full routing table when a longest matching prefix for the destination address is not found in the routing cache. The method further includes copying the longest matching prefix and a set of sub-prefixes of the longest matching prefix from the full routing table to the routing cache, and forwarding the network packet. | 2015-04-02 |
20150092782 | METHOD FOR DISTRIBUTING TRANSMISSION PATH INFORMATION AND ROUTING BRIDGES - A method for distributing transmission path information, including: distributing, by a first routing bridge which stores a MAC address of a host on a local link, transmission path information of the host on the local link to a remote routing bridge of a non-local link, the transmission path information including the MAC address of the host on the local link and identification information of a second routing bridge, so that the remote routing bridge learns the transmission path information from the first routing bridge. The present application further provides corresponding routing bridges. The present application may enable the remote routing bridge to timely learn the transmission path information of the host under the condition that a data packet sent by the host is not received, so as to send data to the host according to a new transmission path. | 2015-04-02 |
20150092783 | APPARATUS AND METHOD FOR ESTABLISHING TUNNELS BETWEEN NODES IN A COMMUNICATION NETWORK - Tunnels are established between nodes along a packet transfer route in a communication network so that a packet is transferred from a first relay node to a second relay node via one or more intermediate relay nodes using the established tunnels. An intermediate relay node receives, from an adjacent downstream relay node, a reply message storing relay-node addresses identifying the downstream relay node and at least one intermediate relay node between the downstream relay node and the first relay node. The intermediate relay node establishes a tunnel to the downstream relay node in association with the relay-node address of the downstream relay node, updates the reply message by removing the relay-node address of the down stream relay node from the reply message, and transfers the updated reply message to an adjacent upstream relay node along the packet transfer route. | 2015-04-02 |
20150092784 | COMMUNICATION SYSTEM, COMMUNICATION DEVICE, STORAGE MEDIUM, AND COMMUNICATION METHOD - An example communication system, including: a plurality of devices that form a mesh-type network, each of the plurality of devices performing communication from a source device to a destination device, directly or by relaying via one or more other devices, and at least one of the plurality of devices including a selecting unit, that selects a communication route from the source device to the destination device according to a first restriction with regard to a relay value indicative of the number of communication routes that each device is able to relay. | 2015-04-02 |
20150092785 | DYNAMIC AREA FILTERING FOR LINK-STATE ROUTING PROTOCOLS - In general, techniques are described for dynamically filtering, at area border routers (ABRs) of a multi-area autonomous system, routes to destinations external to an area by advertising to routers of the area only those routes associated with a destination address requested by at least one router of the area. In one example, a method includes receiving, by an ABR that borders a backbone area and a non-backbone area of a multi-area autonomous system that employs a hierarchical link state routing protocol to administratively group routers of the autonomous system into areas, a request message from the non-backbone area that requests the ABR to provide routing information associated with a service endpoint identifier (SEI) to the non-backbone area. The request message specifies the SEI. The method also includes sending, in response to receiving the request and by the ABR, the routing information associated with the SEI to the non-backbone area. | 2015-04-02 |
20150092786 | SESSION ESTABLISHMENT METHOD AND APPARATUS - The present invention is applicable to the field of communications and provides a session establishment method and apparatus. The method includes: acquiring an infrastructure virtual circuit IVC corresponding to a user equipment UE; sending a virtual local area network VLAN label corresponding to the IVC to a customer location function set, so that the customer location function set adds the VLAN label to a packet of the UE, where the VLAN label is configured by an L2 session control functional entity for the IVC; and notifying an L2 forwarding functional entity of the VLAN label, so that the L2 forwarding functional entity forwards, to the IVC, the packet sent by the customer location function set and added with the VLAN label. In the present invention, a case in which the L2 forwarding functional entity needs to store a large MAC table is avoided, and packet forwarding efficiency is improved. | 2015-04-02 |
20150092787 | FLUCTUATION ABSORBING DEVICE, COMMUNICATION DEVICE, AND CONTROL PROGRAM - A fluctuation absorbing device includes a buffer | 2015-04-02 |
20150092788 | INPUT-OUTPUT MODULE - A base circuit board ( | 2015-04-02 |
20150092789 | Method And Apparatus For Managing Data Transmission In A Communication Network - A manner of managing data transmission and operating-mode transitions in a communication network. A network node having a transmitter and receiver is selectively transitioned into a Transmit state, where the Transmit state is a condition wherein the transmitter is turned on for data transmission only during timeslots provided for by a PBW (pre-allocation bandwidth) and remains off otherwise. The PBW and clock drift allowance permits the receiver to remain off during all or most of the Transmit state. | 2015-04-02 |
20150092790 | INTERNET PROTOCOL TELEVISION AND OPERATING METHOD THEREOF - An IPTV (Internet Protocol TeleVision) including an Ethernet driver configured to receive a broadcast signal, extract a data packet from the received broadcast signal, and store the extracted data packet in a memory; an IP tuner configured to convert the extracted data packet and store the converted data packet as reproduction data accessible by a decoder; and an output unit configured to output the reproduction data decoded by the decoder. | 2015-04-02 |
20150092791 | Determining A High Data Rate For Backchannel Communications For Initialization of High-Speed Networks - One embodiment provides a network controller. The network controller includes physical interface (PHY) circuitry comprising transmitter circuitry configured to transmit data frames to a link partner in communication with the transmit circuitry over a channel link. The network controller also includes a link speed cycling module configured to, upon initialization of the PHY circuitry, cause the transmitter circuitry to transmit data frames to the link partner using at least one high rate link speed. The network controller also includes an equalization presets module configured to apply at least one equalization preset setting to the transmitter circuitry while the transmitter circuitry is transmitting the data frames to the link partner. The link speed module is further configured to cause the transmitter circuitry to dwell, for a transmitter dwell time period, for the at least one equalization preset setting at the at least one high rate link speed. The transmitter dwell time period is sufficient to allow the link partner to lock on to the transmitted data frames. | 2015-04-02 |
20150092792 | Method and system for implementing synchronous parallel transmission over multiple channels - Disclosed are a method and a system for implementing synchronous parallel transmission over multiple channels. The method comprises: a sending end and a receiving end accessing an NoC through a sending port and a receiving port on the NoC, the sending port and the receiving port having a capability of simultaneously and parallely transmitting data; the sending end sending data to the sending port of the NoC, and the sending port encoding the received data into a bipolar data symbol and modulating the bipolar data symbol by using a Walsh code; then the NoC synchronously adding and combining modulated symbols of all sending ports, and sending a signal after the combination to each receiving port through an NoC bus synchronously and parallely; and the receiving port demodulating the received combined data according to the Walsh code thereof to obtain the bipolar data symbol, and then decoding the bipolar data symbol and sending the decoded bipolar data symbol to the receiving end. The present invention implements the synchronous parallel transmission over multiple channels, and one or more channels can be dynamically allocated to each NoC port so as to adapt to different communication bandwidth requirements. | 2015-04-02 |
20150092793 | METHOD AND DEVICES FOR SYNCHRONIZATION - This invention relates to methods and devices for time and frequency synchronization. The invention has particular application where time and frequency synchronization over packet networks using, for example, the IEEE 1588 Precision Time Protocol (PTP) is being carried out. The primary challenge in clock distribution over packet networks is the variable transit delays experienced by timing packets, packet delay variations (PDVs). Embodiments of the invention provide a method for time offset alignment with PDV compensation where a synchronized frequency signal is available at a slave device via Synchronous Ethernet and is used to determine the compensation parameters for the PDV. | 2015-04-02 |
20150092794 | METHOD AND DEVICES FOR COMPENSATING FOR PATH ASYMMETRY - This invention relates to methods and devices for compensating for path asymmetry, particularly with reference to time and frequency synchronization. The invention has particular application where time and frequency synchronization over packet networks using, for example, the IEEE 1588 Precision Time Protocol (PTP) is being carried out. Typically communication path delays between a time server (master) and a client (slave) are estimated using the assumption that the forward delay on the path is the same as the reverse delay. As a result, differences between these delays (delay asymmetries) can cause errors in the estimation of the offset of the slave clock from that of the master. Embodiments of the invention provide techniques and devices for compensating for path delay asymmetries that arise when timing protocol messages experience dissimilar queuing delays in the forward and reverse paths. | 2015-04-02 |
20150092795 | METHOD AND APPARATUS FOR DETERMINING CLOCK DESYNCHRONIZATION - Embodiments of the present invention provide a method and an apparatus for determining clock desynchronization. The method includes: detecting a cell with exceptional IN information or power information among all cells of base stations throughout a network according to network measurement data sent by a base station, and using the cell as a first cell, where the network measurement data includes interference and noise (IN) information or power information; and sorting the first cell according to different types of exceptions of the IN information or power information, so as to determine that one or more of the base stations throughout the network are in clock desynchronization. | 2015-04-02 |
20150092796 | METHOD AND DEVICES FOR TIME AND FREQUENCY SYNCHRONIZATION - This invention relates to methods and devices for time and frequency synchronization, especially over packet networks using, for example, the IEEE 1588 Precision Time Protocol (PTP). Timing protocol messages are exposed to artifacts in the network such as packet delay variations (PDV) or packet losses. Embodiments of the invention provide a recursive least squares mechanism for clock offset and skew estimation. A major potential advantage of such estimation is that it does not require knowledge of the statistics of the measurement noise and process noise. An implementation using a digital phase locked loop based on direct digital synthesis to provide both time and frequency signals for use at the slave (time client) is also provided. | 2015-04-02 |
20150092797 | METHOD AND DEVICES FOR TIME AND FREQUENCY SYNCHRONIZATION USING A PHASE LOCKED LOOP - This invention relates to methods and devices for time and frequency synchronization, especially over packet networks using, for example, the IEEE 1588 Precision Time Protocol (PTP). Timing protocol messages are exposed to artifacts in the network such as packet delay variations (PDV) or packet losses. Embodiments of the invention provide a digital phase locked loop (DPLL) based on direct digital synthesis to provide both time and frequency signals for use at the slave (time client). An example of this DPLL in conjunction with a recursive least squares mechanism for clock offset and skew estimation is also provided. | 2015-04-02 |
20150092798 | METHOD TO DETERMINE OPERATING CONDITIONS OF WAVELENGTH TUNABLE LASER DIODE AND TO CONTROL OPTICAL TRANSMITTER PROVIDING WAVELENGTH TUNABLE LASER DIODE - A method to control a wavelength tunable laser diode (tunable LD) is disclosed. The tunable LD includes a SG-DFB region and a CSG-DBR region to tune the emission wavelength thereof. The CSG-DBR region includes three segments, where the refractive indices of respective segments are variable by heaters provided therein. When the electrical power supplied to two segments is optionally selected, the power supplied to the rest segment is corrected by an offset from a value reflecting physical dimensions of the heaters. The offset is determined such that the tunable LD shows the best side mode suppression ratio (SMSR). | 2015-04-02 |
20150092799 | OPTICAL SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAME - An optical semiconductor device comprises: a first insulating film provided on a semiconductor layer; a heater provided on the first insulating film; a second insulating film provided on the heater; and an electrode provided on the heater. The electrode extends on the second insulating film; the electrode is in contact with the heater; the second insulating film includes a first region on which the electrode is located; and a thickness of the first region of the second insulating film is greater than that of the first insulating film. | 2015-04-02 |
20150092800 | MOPA LASER SOURCE WITH WAVELENGTH CONTROL - The invention provides a wavelength-controlled pump MOPA laser and a method of operation thereof. A monolithic semiconductor MOPA laser chip has a DFB-laser based MO (master oscillator) and PA (power amplifier) sections formed in a same monolithic waveguide, and separate MO and PA electrodes for individual control of current injection into the MO and PA sections. The laser wavelength is defined by the DFB grating and is kept fixed by suitably controlling the MO current to compensate for a thermal crosstalk from the PA section, or tuned by suitably changing the MO current or direct heating of the DFB region. | 2015-04-02 |
20150092801 | LASER SYSTEM WITH WAVELENGTH CONVERTER - A method of controlling beam quality and stability of a laser apparatus, the laser apparatus comprising, a diode laser ( | 2015-04-02 |
20150092802 | OPTICALLY PUMPED VERTICAL EXTERNAL-CAVITY SURFACE-EMITTING LASER DEVICE - The present invention relates to an optically pumped vertical external-cavity surface-emitting laser device comprising at least one VECSEL ( | 2015-04-02 |
20150092803 | LASER DIODE AND TRANSMITTER MODULE - A transmitter module that includes a laser diode (LD) and a driver, each mounted on a sub-mount, is disclosed. The driver directly drives the LD by supplying a modulation signal, a bias signal, and a reference. Two signals are provided to a first pad of the LD, while, the reference is provided to the second pad of the LD. The second pad in the center thereof is formed relatively closer to the second facet of the LD opposite to the first facet through which the laser light is emitted. | 2015-04-02 |
20150092804 | SEMICONDUCTOR LASER ELEMENT AND METHOD OF MANUFACTURING THE SAME - A semiconductor laser element includes a substrate; a semiconductor layer formed on a front surface of the substrate; a first electrode formed on a back surface of the substrate; a second electrode formed on a front surface of the semiconductor layer; and at least one mark configured to allow reading of predetermined information, the at least one mark being formed in at least one of (i) a position on the surface on which the first electrode is formed, spaced apart from the first electrode and (ii) a position on the surface on which the second electrode is formed, spaced apart from the second electrode. The at least one mark is made of a metal material and has a thickness smaller than a thickness of the electrode that is formed on the surface on which the at least one mark is formed. | 2015-04-02 |
20150092805 | SEMICONDUCTOR LASER DEVICE - A semiconductor laser device includes a semiconductor laser element having an active layer and semiconductor layers on opposite sides of the active layer, and a PN-junction diode in part of the semiconductor layers. The PN-junction diode is connected, in inverse polarity, in parallel with the semiconductor laser element. | 2015-04-02 |