Abstract: There are provided a CPU connection circuit and a method by two CPUs by alternately conducting a changeover between two buffers disposed there between to prevent an event that data processing cannot be fully executed by the CPU on the receiving side. There is included a memory controller which monitors whether or not an amount of data stored by a CCPU 1 in either one of buffers 301 and 302 reaches a predetermined threshold value; when the amount of data stored by the CCPU 1 in the buffer 301, 302 reaches the threshold value, the memory controller requests an ACPU 2 to acquire the data stored in the buffer and changes the storage destination of data from the CCPU to the other one of the buffers; the threshold value is a value more than a unit quantity of data which the CCPU 1 sends to the buffer 301, 302.

Abstract: A mobile user terminal includes a receiver which receives a signal, and a processor which measures downlink channel quality based on the signal and does not transmit downlink channel quality information and an uplink pilot signal simultaneously at a period which the mobile user terminal is a state of transmission off in an intermittent fashion.

Abstract: A data distribution system includes a mobile station, a base station, and a server that distributes data to the mobile station via the base station. The base station transmits information about a line condition between the base station and the mobile station to the server. The server distributes data to the base station based on the information about the line condition.

Abstract: A mobile user terminal includes a receiver which receives a signal, and a processor which measures downlink channel quality based on the signal and does not transmit downlink channel quality information and an uplink pilot signal simultaneously at a period which the mobile user terminal is a state of transmission off in an intermittent fashion.

Abstract: A communication controller includes a processor. The processor performs a process of estimating a moving route of a mobile station connected through a network and a process of determining a timing to start transmission of data to be transmitted between the network and the mobile station based on a prediction result of a communication quality of the mobile station according to the estimated moving route and a size of the data.

Abstract: A transmitter for use in digital radio communications systems includes: a bit corrector controls bit arrangement in such a manner that a code having high significance, out of multiple codes obtained by coding, is allocated with high priority to a bit having a tendency that the likelihood enlarges at the time of symbol decision on a receiver; a multi-level modulator allocates the code to the multiple bits in accordance with a predetermined symbol arrangement; and a symbol arrangement controller controls the symbol arrangement from equal distance arrangement to another arrangement in accordance with a ratio of the codes different in significance. To control symbol arrangement increases the effect of bit correction and improves an error rate on the receiver.

Abstract: According to priorities determined on the basis of a number of pieces of battery information which concern batteries of a number of communication terminals and each of which is received from the communication terminals, data communication with communication terminals are controlled. The priorities are varied, irrespective of a variation in the pieces of battery information, according to a rule predetermined.

Abstract: A mobile user terminal includes a receiver which receives a signal, and a processor which measures downlink channel quality based on the signal and does not transmit downlink channel quality information and an uplink pilot signal simultaneously at a period which the mobile user terminal is a state of transmission off in an intermittent fashion.

Abstract: A method for using a mobile user terminal includes a receiving a signal and a measuring downlink channel quality based on the signal; wherein downlink channel quality information and an uplink pilot signal simultaneously is not transmitted at a period which the mobile user terminal is a state of transmission off in an intermittent fashion.

Abstract: Provided is a preamble receiving apparatus, including: a receiving unit receiving from a transmitting apparatus a frame having a format which contains a preamble section and a margin section subsequent to the preamble section; and a reception processing unit detecting a preamble signal which is transmitted in the preamble section in the transmitting apparatus from the received frame, wherein the reception processing unit includes: a correlation processing unit which defines as a search section a time having a predetermined starting point and which is equal to or shorter than the margin section, and creates a power profile for each of divided sections through a correlating process operation related to a plurality of divided sections obtained by dividing the search section; and a coupled profile creating unit for creating a coupled power profile by coupling the power profile for each of the divided sections to each other.

Abstract: A friction-clutch system having a friction disk unit including a central hub and friction disks, wherein the friction disks have friction surfaces. At least one friction surface of the first to fourth friction surfaces is constituted of a combination of a carbon/graphite material and a metal/ceramics material, wherein the carbon/graphite material forms a friction surface made from a carbon/graphite material, and a metal/ceramics material forms a friction surface made from a metal/ceramics material, wherein the ratio of [the area of the friction surface made from the metal/ceramics material]/[the area of the friction surface made from the metal/ceramics material+the area of the friction surface made from the carbon/graphite material] ranges from 0.05˜0.65, and wherein pressure between the first and the third friction surface and between the second and the fourth friction surface is 10˜250 N/cm2 while the power is being transmitted.

Abstract: A mobile user terminal (UE), which measures downlink channel quality, and which transmits downlink quality information indicating the measured downlink channel quality and an uplink pilot signal to be used for measuring uplink channel quality to a base station (BS), comprises a transmit time control unit (216), which synchronizes transmit time of the downlink quality information and transmit time of the uplink pilot signal relative to each other. And/or the mobile user terminal (UE) comprises a radio transmitting unit (212) which transmits the downlink quality information and the uplink pilot signal by using the same carrier frequency or by using adjacent carrier frequencies selected from among a plurality of preassigned carrier frequencies.

Abstract: A mobile user terminal includes a receiver which receives a signal, and a processor which measures downlink channel quality based on the signal and does not transmit downlink channel quality information and an uplink pilot signal simultaneously at a period which the mobile user terminal is a state of transmission off in an intermittent fashion.

Abstract: There are provided a CPU connection circuit and a method wherein the CPU connection circuit is a circuit to be employed by two CPUs by alternately conducting a changeover between two buffers disposed therebetween to prevent an event that data processing cannot be fully executed by the CPU on the receiving side. There is included a memory controller 303 which monitors whether or not an amount of data stored by a CCPU 1 in either one of buffers 301 and 302 reaches a predetermined threshold value; when the amount of data stored by the CCPU 1 in the buffer 301, 302 reaches the threshold value, the memory controller 303 requests an ACPU 2 to acquire the data stored in the buffer and changes the storage destination of data from the CCPU to the other one of the buffers; the threshold value is a value more than a unit quantity of data which the CCPU 1 sends to the buffer 301, 302.

Abstract: A communication method includes at a relay device, receiving first data from the base station, the first data including first control information that represents a first communication mode from the base station to the relay device, adding second control information to the received first data, the second control information representing a second communication mode from the relay device to the terminal device, and relaying second data to the terminal device, the second data including the first data added with the second control information; and at a terminal device, receiving the first data of the first communication mode storing the first data in a buffer, performing reception processing on the second data based on the second control information included in the second data, performing reception processing on the first data based on the first control information included in the second data, and combining the first and second data.

Abstract: A mobile user terminal, which transmits downlink quality information indicating downlink channel quality and an uplink pilot signal to a base station, in which a carrier frequency used for transmitting the downlink quality information and a carrier frequency used for transmitting the uplink pilot signal are selectable respectively from among a plurality of carrier frequencies assigned to a mobile user terminal, a mobile user terminal comprising of a radio transmitting unit, which transmits said downlink quality information and said uplink pilot signal by using the same carrier frequency among a plurality of carrier frequencies or by using adjacent carrier frequencies among a plurality of carrier frequencies.

Abstract: Power consumption can be reduced in a portable terminal device that is equipped with a location means to locate the current position. A portable terminal device carried by a user includes: A location means that locates the current position of the portable terminal device; and a microprocessor that intermittently acquires the result of location from the location means, in which the microprocessor calculates the traveling speed of the portable terminal device based on the result of location done by the location means, and switches the time intervals at which the microprocessor acquires the result of location from the location means in accordance with the traveling speed so that when the result of calculation indicates a small speed, the time intervals become longer than when the result of calculation indicates a large speed.

Abstract: A friction member for a frictional engagement device is provided in which weight is reduced, impact resistance is enhanced and sliding resistance is improved; and also provided is a method for producing the same. As a friction member (10) for a frictional engagement device, a friction member made of a carbon fiber/carbonaceous composite material is provided which is obtained by implementing a heat treatment on a precursor, the precursor comprising a matrix composed of a carbon binder and an additive and carbon fiber dispersed in the matrix, wherein a porosity of the friction member is 20-60%.

Abstract: A mobile user terminal, which transmits downlink quality information indicating downlink channel quality and an uplink pilot signal to a base station, in which a carrier frequency used for transmitting the downlink quality information and a carrier frequency used for transmitting the uplink pilot signal are selectable respectively from among a plurality of carrier frequencies assigned to a mobile user terminal, a mobile user terminal comprising of a radio transmitting unit, which transmits said downlink quality information and said uplink pilot signal by using the same carrier frequency among a plurality of carrier frequencies or by using adjacent carrier frequencies among a plurality of carrier frequencies.

Abstract: According to priorities determined on the basis of a number of pieces of battery information which concern batteries of a number of communication terminals and each of which is received from the communication terminals, data communication with communication terminals are controlled. The priorities are varied, irrespective of a variation in the pieces of battery information, according to a rule predetermined.