Abstract: Provided is a communication device including an acquisition unit configured to acquire the electrical quantity of a power load, a communication unit configured to wirelessly transmit a packet including the electrical quantity acquired to a master unit that wirelessly transmits a control signal that controls the electrical quantity of a plurality of loads, and a controller configured to switch operation of the communication unit to a second mode in which the packet is wirelessly transmitted without specifying a destination when the electrical quantity equal to or greater than a first reference value is acquired during operation of the communication unit in a first mode in which the packet is wirelessly transmitted to the base station by specifying a destination.

Abstract: A communication device selects a layer 2 address to be changed, and transmits a presence check request message via a network to which the communication device is connected. The communication device determines, based on a received result of the presence check request message, whether the layer 2 address is duplicated with another communication device connected to the network. When the communication device confirms the layer 2 address is not duplicated, the communication device changes the layer 2 address of the communication device.

Abstract: A system and method for providing Connectivity Fault Management, CFM, in a Provider Backbone Bridge Traffic Engineering, PBB-TE, telecommunication network utilizing Ethernet-based packet transport. PBB-TE point-to-point and point-to-multipoint services are identified, and PBB-TE maintenance points (31, 41) associated with the identified PBB-TE services are addressed. The addressed PBB-TE maintenance points are modified by adding a PBB-TE Service Demultiplexer (32, 42) to each PBB-TE maintenance point for identifying independent PBB-TE service instances. Basic CFM protocols are enhanced to duplicate the behavior of CFM protocols on virtual local area network, VLAN, based maintenance associations. The PBB-TE maintenance points may be Maintenance association End Points, MEPs, and Maintenance association Intermediate Points, MIPs.

Abstract: A novel policer mechanism that incorporates randomization of the rate threshold which prevents “lockup” and “synchronization” problems associated with prior art policers that employ fixed rate thresholds. In one embodiment, a policer machine utilizes the well known sliding window technique to implement traffic control. In a second embodiment, a policer machine utilizes the well known token bucket technique to implement traffic control. In both embodiments, a random dimension is added to the rate threshold used by each policer algorithm. For the sliding window embodiment, the effect of randomization of the rate threshold is that the policer machine applies a scattering of rate values centered around the desired rate to the incoming traffic. For the token bucket embodiment, a random dimension is added to the empty bucket (i.e. zero tokens) threshold.

Abstract: A test apparatus, which is for testing a device under test including a receiving circuit for receiving signals transmitted through a communication cable, includes: a waveform generating section for outputting waveform data to define a waveform to be provided to an input terminal of a receiving circuit; a digital filter having the filter characteristic substantially reverse to the attenuation characteristic of the communication cable, for outputting amplified waveform data obtained by amplifying the waveform data; a DA converter for converting the amplified waveform data to an analog waveform; and a low-pass filter having the attenuation characteristic substantially same as that of the communication cable, for attenuating the analog waveform and providing the same to the receiving circuit.

Abstract: A packet sending apparatus that improves packet transmission quality by preventing loss of packet information, while minimizing a reduction in transmission rate. A clock frequency deviation correction calculation section calculates a valid packet sending period in which valid packets packet information of which is not lost due to clock frequency deviation between the packet sending apparatus and a packet receiving apparatus are included and the number of valid packets included in the valid packet sending period.

Abstract: A method and apparatus are provided for jointly encoding bits containing information about an existing modulation technique or an existing antenna transmission technique in order to extend signaling to include new information about an additional modulation technique or the use of an additional antenna transmission technique without having to increase the number of bits transmitted in the signaling; and conveying the new information in unused combinations of the encoded bits. The signaling may take the form of a high speed shared control channel (HS-SCCH) that forms part of a high speed downlink packet access (HSDPA). In some embodiments, the existing modulation technique may include quadrature phase shift keying (QPSK), 16 quadrature amplitude modulation (16QAM), or some combination thereof, and the additional modulation technique may include 64 quadrature amplitude modulation (64QAM).

Abstract: Signaling completion of a message transfer from an origin node to a target node includes: sending, by an origin DMA engine, an RTS message, the RTS message specifying an application message for transfer to the target node from the origin node; receiving, by the origin DMA engine, a remote get message containing a data descriptor for the message and a completion notification descriptor, the completion notification descriptor specifying a local memory FIFO data transfer operation for transferring data locally on the origin node; inserting, by the origin DMA engine in an injection FIFO buffer, the data descriptor followed by the completion notification descriptor; transferring, by the origin DMA engine to the target node, the message in dependence upon the data descriptor; and notifying, by the origin DMA engine, the application that transfer of the message is complete in dependence upon the completion notification descriptor.

Abstract: The technology in this application spreads a signal over an available discontinuous spectrum, such as a radio frequency band, so that the spread signal only occupies the non-contiguous spectrum. In this way, CDMA transmission and reception can be used in a fragmented or non-contiguous spectrum that otherwise would not be useable for direct sequence spreading. Spreading over non-contiguous portions of spectrum is preferably performed without producing unacceptable interference in portions of unavailable spectrum located between the allowed spectrum. By avoiding unacceptable interference in portions of unavailable spectrum located between the allowed spectrum, the unavailable spectrum may be used by other users or services.

Abstract: A method and system, are provided for dynamically allocating channel resources in a wireless network. The wireless network may be a multi-rate network having a base station controller that adapts wireless channel rates associated with a communication session based on a TCP sending rate associated with a sending device. The base station controller includes a scheduler and optimization engine that probes the wireless network to gather TCP parameters, such as round trip times, etc. The optimization engine utilizes a long-term sending rate to generate a subset of channel rates from available channel rates associated with the wireless network. The scheduler engine utilizes the instantaneous sending rate to adapt the wireless channel rate by selecting a channel rate from the subset of channel rates.

Abstract: A method and apparatus for providing channel access coordination in a BSS or a wireless mesh is presented. A control channel is assigned to a control radio. At least one data channel is assigned to at least one data radio. Control signals are transmitted and received on the control channel, and data is transmitted and received on the at least one data channel. Acknowledgements for the data are received on the control channel. A node having a plurality of radios can transmit and receive traffic on different data channels simultaneously.

Abstract: A method for initiating a remote trace route includes establishing a communication session between a first endpoint and a second endpoint. The method also includes detecting at the first endpoint a quality impairment in a communication sent from the second endpoint. In response to detecting the quality impairment, the method includes sending a request from the first endpoint to the second endpoint for the second endpoint to initiate a trace route from the second endpoint to the first endpoint. Upon receiving the request at the second endpoint, the method includes initiating a trace route from the second endpoint to the first endpoint.

Abstract: A power line communication device for communicating data signals over a power line is provided. One example embodiment comprises a conditioning circuit configured to be coupled to the power line and a modem communicatively coupled to the conditioning circuitry to transmit and receive data signals over the power line via the conditioning circuitry. The modem may be configured to transmit and receive orthogonal frequency division multiplexed data signals that comprise a plurality of sub-carriers, wherein the modem is adapted to vary the transmit power for each of a plurality of subsets of the plurality of sub-carriers from substantially zero power to a plurality of increments above zero power. The modem also may be adapted to transmit and receive data signals with the transmit power for each of a plurality of subsets of the plurality of sub-carriers being different and to transmit and receive using a different modulation scheme at different sub-carriers.

Abstract: A communication system is formed with a master unit having a communication function and at least one slave unit also having a communication function connected by a network including a bus. Repeater units are inserted on the network between the master unit and the slave unit in one or more stages. As the master unit transmits request frames downstream through the network to the slave unit, the slave unit control the timing of transmitting the response frames in response successively such that the master unit receives the response frames without waiting in between regardless of repeater delay times of each of the returned response frames determined by the number of stages of the repeater units. Each communication frame that is transmitted through the network contains identification data indicative of its type and each repeater unit serves to repeat certain types of received frames only in the upstream direction.

Abstract: A method and system for converting a voice communication to a text transcription. The method comprises receiving by a computing system in a control command center, a first transmission identifier from a vehicle. The first transmission identifier identifies the vehicle. The computing system receives voice communication data for the vehicle from a user in the control command center. A software application within the computing system converts the voice communication data into text data. The computing system transmits the voice communication data, a first copy of the text data and a second transmission identifier to the vehicle. The second transmission identifier identifies the control command center. The computing system receives a confirmation request from the vehicle to confirm if the text data comprises correct information related to the voice communication data. The confirmation request is displayed on a video monitor system. The computing system transmits confirmation data to the vehicle.

Abstract: The modulation indication bit is interpreted as a QPSK/xQAM modulation indication if both the user equipment and the serving cell support 64QAM modulation, such that if QPSK is indicated, the 7 code-set information bits in the HS-SCCH part 1 structure is interpreted as is presently interpreted today as defined in the 3GPP release 5 specification, and if xQAM is indicated, the 7 code-set information bits in the HS-SCCH part 1 structure is interpreted such that only 6 bits are used for code information and one bit is stolen for use for the 16QAM/64QAM selection.