Disclosed is a method for wireless communication, including identifying first offset information and second offset information, identifying a size of uplink data for a user equipment, and transmitting the uplink data with at least one of acknowledgement/non-acknowledgment (ACK/NACK) information and channel quality indicator (CQI) information on a physical uplink shared channel, wherein a number of symbols for the ACK/NACK information is determined based on the first offset information and the size of uplink data, and a number of symbols for the CQI information is determined based on the second offset information and the size of uplink data.

An object of the present invention is to provide a sensor terminal, a data collection unit, a data collection system, a data collection method, and a program capable of handling highly real-time sensing data while eliminating the need to generate a highly reliable timestamp. In a data collection system 302, a sensor terminal 11 receives broadcast time information (step S01), the sensor terminal 11 transmits related time information related to the time information and sensing data as a set (step S02), a data collection unit 12 receives the set (step S03), and the data collection unit 12 organizes the related time information and the sensing data included in the set in a database 12d on the basis of information for identifying the sensor terminal 11 (step S04).

A data collection device includes a reference signal reception unit that receives a reference signal indicating a first time that is a time measured by an external device, the reference signal being transmitted at first time intervals from the external device, a time signal generation unit that measures a time at second time intervals and generates a time signal indicating a second time that is the measured time, a parameter generation unit that generates a parameter value on the basis of the first time indicated by the reference signal and the second time based on the time signal generated at a point in time when the reference signal is received, a signal reception unit that receives an analog signal indicating a signal waveform of an observed signal, a sampling unit that samples the received analog signal at the second time intervals to generate sampling data, and a data processing unit that performs interpolation processing on the sampling data on the basis of the parameter value.

Disclosed are various embodiments for mitigating congestion in networks employing flow-based hashing to assign flows to routes. A flow of packets is sent from a source endpoint to a destination endpoint by way of a network. The flow of packets is associated with flow identification information. It is detected whether congestion is affecting the flow of packets in the network. A perturbation to the flow identification information for the flow of packets is effected in response to determining that congestion is affecting the flow of packets in the network.

Disclosed are various embodiments for avoiding flow collisions in networks employing flow-based hashing to assign flows to routes. A flow of packets is sent from a source endpoint to a destination endpoint by way of a network. The flow is associated with flow identification information including, for example, a source port, a source network address, a destination port, and a destination address. It is determined whether to perturb the flow identification information for the flow to avoid flow collisions caused by flow-based hashing performed in the network. A state associated with the flow is updated to effect a perturbation to the flow identification information for the flow if the flow identification information for the flow is to be perturbed.

Provided is a wireless sensor node which includes a sensor to convert a physical quantity into an electric signal to measure the physical quantity, a filter to extract a signal containing a predetermined frequency from the electric signal, a transmitter to transmit data based on the frequency extracted by the filter, a receiver to receive a command to be transmitted from an outside in a wireless manner, and a control unit to control a frequency to be extracted by the filter based on the command.

The present disclosure relates to a network device that indicates a master network controller in a virtual redundant router protocol (VRRP) peer. In example implementations, the network device determines a bake-off time and refrains from sending packets during the bake-off time to a network. Also, the network device determines whether a first packet is received from the network. If either the bake-off time expires or the first packet is received from the network, the network device determines whether a spanning tree protocol (STP) convergence has completed. If so, the network device starts a VRRP state machine. If both the STP convergence has completed and the VRRP state machine has been started, the network device transmits a broadcast message indicating that the network device acts as a master network controller in the network.

A monitoring system includes a battery-type power supply device. The battery-type power supply device is mounted in a battery box of an operation device for remotely operating an external device. A server apparatus is connected via a network to the battery-type power supply device. The battery-type power supply device includes current detection means for detecting an internal current flowing in the operation device, and transmission means for transmitting data indicating a fluctuation in the detected internal current to outside. The server apparatus includes means for receiving the data indicating a fluctuation, operation identification means for identifying an operation portion that has been operated in the external device based on the data indicating the fluctuation, and means for transmitting information relating to the identified operation portion or a result of aggregation of the information to external processing devices via the network.

Provided is an electric apparatus, which has excellent convenience and operates by switching an operation mode according to the type of a communication device of a connection destination. The electric apparatus includes: a superimposition signal transmission portion which transmits, to a communication device, a superimposition signal obtained by superimposing a data signal on an operation signal; an operation mode switching portion which switches between a normal operation mode in which transmission of the superimposition signal is performed and a low current consumption mode in which transmission of the superimposition signal is not performed; and a current detection portion which detects a current value supplied from the communication device, wherein the operation mode switching portion switches the low current consumption mode to the normal operation mode when the current detection portion detects a current equal to or greater than a predetermined threshold value in the low current consumption mode.

Provided is an electric apparatus, which has excellent convenience and operates by switching an operation mode according to the type of a communication device of a connection destination. The electric apparatus includes: a superimposition signal transmission portion which transmits, to a communication device, a superimposition signal obtained by superimposing a data signal on an operation signal; an operation mode switching portion which switches between a normal operation mode in which transmission of the superimposition signal is performed and a low current consumption mode in which transmission of the superimposition signal is not performed; and a current detection portion which detects a current value supplied from the communication device, wherein the operation mode switching portion switches the low current consumption mode to the normal operation mode when the current detection portion detects a current equal to or greater than a predetermined threshold value in the low current consumption mode.