Abstract: The object is achieved by providing a base station apparatus for performing time and frequency scheduling in uplink packet access with: an interference amount measurement part configured to measure an uplink interference amount for each interference amount measurement unit which comprises a predetermined period and a predetermined number of frequency blocks; an interference amount determination part configured to determine whether the uplink interference amount satisfies a predetermined condition; and an overload indicator reporting part configured to report an overload indicator to a neighboring cell when the predetermined condition is satisfied.

Abstract: A user terminal includes a receiving section that receives a signal subjected to multiplexing in a power dimension in a given layer and that receives information about the multiplexing in the power dimension; and a signal processing section that demodulates a signal for the user terminal from the multiplexed signal based on the information about the multiplexing in the power dimension.

Abstract: A base station apparatus is used in a mobile communication system in which at least a shared data channel is transmitted by an orthogonal modulation scheme using an I-channel and a Q-channel. The base station apparatus includes a providing unit providing Acknowledgement/Non-Acknowledgement information indicating whether retransmission of a signal received in uplink is required; a mapping unit mapping a number of multiplexed users of the Acknowledgement/Non-Acknowledgement information to the I-channel or the Q-channel based on a predetermined mapping table; and a reporting unit reporting the Acknowledgement/Non-Acknowledgement information to the respective users. The mapping table indicates that, when the number of the multiplexed users is equal to or less than a predetermined number, the Acknowledgement/Non-Acknowledgement information is associated with the I-channel or the Q-channel, and otherwise, the Acknowledgement/Non-Acknowledgement information is associated with the I-channel and the Q-channel.

Abstract: The present invention is designed to improve spectral efficiency in a radio communication system which can use non-orthogonal multiple access (NOMA). Steps are provided in which a radio base station configures one of a plurality of transmission mode including a first transmission mode, which groups a plurality of transmission methods including a transmission method to employ non-orthogonal multiple access (NOMA) and multiple-user multiple-input and multiple-output (MU-MIMO), and a second transmission mode, which groups a plurality of transmission methods including a transmission method to employ this NOMA and open-loop transmit diversity, and transmits a downlink signal for this user terminal based on the configured transmission mode.

Abstract: A wireless base station transmits first information indicating an allocation policy that determines system performance and second information regarding an allocated bandwidth that is allocated to a wireless terminal in a case where the allocation policy is applied, receives, from each of a plurality of wireless terminals, third information regarding a serving base station candidate and throughput that is achieved in a case where the wireless terminal is connected to the serving base station candidate, and controls, on the basis of the third information, a connection to a wireless terminal having the greatest throughput.

Abstract: An edge of a guide hole includes a first contact portion, a second contact portion, and a guide portion. The first contact portion is in contact with the second connecting pin while the second connecting pin is positioned in the lock actuation position. The second contact portion is in contact with the second connecting pin while the second connecting pin is positioned in the lock release position. The guide portion extends in a direction intersecting the movement direction of the second connecting pin between the first contact portion and the second contact portion. The guide portion is pressed by the second connecting pin that moves from the lock actuation position to the lock release position in order to resist the urging force of an urging member and cause the second lock member to move from the locked position to the unlocked position.

Abstract: The object is achieved by providing a base station apparatus for performing time and frequency scheduling in uplink packet access with: an interference amount measurement part configured to measure an uplink interference amount for each interference amount measurement unit which comprises a predetermined period and a predetermined number of frequency blocks; an interference amount determination part configured to determine whether the uplink interference amount satisfies a predetermined condition; and an overload indicator reporting part configured to report an overload indicator to a neighboring cell when the predetermined condition is satisfied.

Abstract: The object is achieved by providing a base station apparatus for performing time and frequency scheduling in uplink packet access with: an interference amount measurement part configured to measure an uplink interference amount for each interference amount measurement unit which comprises a predetermined period and a predetermined number of frequency blocks; an interference amount determination part configured to determine whether the uplink interference amount satisfies a predetermined condition; and an overload indicator reporting part configured to report an overload indicator to a neighboring cell when the predetermined condition is satisfied.

Abstract: A quick coupler includes a coupler body having a first hook, a lock member, a slidable second hook, a hydraulic cylinder, and a connecting pin connecting the cylinder and coupler body. The lock member is movable between locking and unlocking positions in which the lock member protrudes into and retracts from an opening of the first hook. The cylinder includes first and second end portions connected to the coupler body and the second hook, respectively. The cylinder extends and contracts to cause the second hook to slide away from and towards the first hook, respectively. The coupler body includes a support hole moveably supporting the connecting pin in an extension and contraction direction of the cylinder. The first end portion of the cylinder moves away from the second end portion within a movability range of the connecting pin to move the lock member from the unlocking to locking position.

Abstract: A wireless base station transmits first information indicating an allocation policy that determines system performance and second information regarding an allocated bandwidth that is allocated to a wireless terminal in a case where the allocation policy is applied, receives, from each of a plurality of wireless terminals, third information regarding a serving base station candidate and throughput that is achieved in a case where the wireless terminal is connected to the serving base station candidate, and controls, on the basis of the third information, a connection to a wireless terminal having the greatest throughput.

Abstract: A user terminal includes a receiving section that receives a signal subjected to multiplexing in a power dimension in a given layer and that receives information about the multiplexing in the power dimension; and a signal processing section that demodulates a signal for the user terminal from the multiplexed signal based on the information about the multiplexing in the power dimension.

Abstract: An edge of a guide hole includes a first contact portion, a second contact portion, and a guide portion. The first contact portion is in contact with the second connecting pin while the second connecting pin is positioned in the lock actuation position. The second contact portion is in contact with the second connecting pin while the second connecting pin is positioned in the lock release position. The guide portion extends in a direction intersecting the movement direction of the second connecting pin between the first contact portion and the second contact portion. The guide portion is pressed by the second connecting pin that moves from the lock actuation position to the lock release position in order to resist the urging force of an urging member and cause the second lock member to move from the locked position to the unlocked position.

Abstract: A quick coupler includes a coupler body having a first hook, a lock member, a slidable second hook, a hydraulic cylinder, and a connecting pin connecting the cylinder and coupler body. The lock member is movable between locking and unlocking positions in which the lock member protrudes into and retracts from an opening of the first hook. The cylinder includes first and second end portions connected to the coupler body and the second hook, respectively. The cylinder extends and contracts to cause the second hook to slide away from and towards the first hook, respectively. The coupler body includes a support hole moveably supporting the connecting pin in an extension and contraction direction of the cylinder. The first end portion of the cylinder moves away from the second end portion within a movability range of the connecting pin to move the lock member from the unlocking to locking position.

Abstract: The object is achieved by providing a base station apparatus for performing time and frequency scheduling in uplink packet access with: an interference amount measurement part configured to measure an uplink interference amount for each interference amount measurement unit which comprises a predetermined period and a predetermined number of frequency blocks; an interference amount determination part configured to determine whether the uplink interference amount satisfies a predetermined condition; and an overload indicator reporting part configured to report an overload indicator to a neighboring cell when the predetermined condition is satisfied.

Abstract: A transmission apparatus is provided with radio resource assignment means that assigns radio resources to each physical channel according to a type of the physical channel; and transmission means that transmits information to be transmitted by each physical channel using the assigned radio resources.

Abstract: A base station apparatus is used in a mobile communication system in which at least a shared data channel is transmitted by an orthogonal modulation scheme using an I-channel and a Q-channel. The base station apparatus includes a providing unit providing Acknowledgement/Non-Acknowledgement information indicating whether retransmission of a signal received in uplink is required; a mapping unit mapping a number of multiplexed users of the Acknowledgement/Non-Acknowledgement information to the I-channel or the Q-channel based on a predetermined mapping table; and a reporting unit reporting the Acknowledgement/Non-Acknowledgement information to the respective users. The mapping table indicates that, when the number of the multiplexed users is equal to or less than a predetermined number, the Acknowledgement/Non-Acknowledgement information is associated with the I-channel or the Q-channel, and otherwise, the Acknowledgement/Non-Acknowledgement information is associated with the I-channel and the Q-channel.

Abstract: The object is achieved by providing a base station apparatus for performing time and frequency scheduling in uplink packet access with: an interference amount measurement part configured to measure an uplink interference amount for each interference amount measurement unit which comprises a predetermined period and a predetermined number of frequency blocks; an interference amount determination part configured to determine whether the uplink interference amount satisfies a predetermined condition; and an overload indicator reporting part configured to report an overload indicator to a neighboring cell when the predetermined condition is satisfied.

Abstract: One of sequence groups each specifying reference signal sequences for respective radio resource bandwidths is assigned to a base station and a different one of the sequence groups is assigned to a neighboring cell. The base station includes a scheduler configured to allocate radio resources; a reporting unit configured to report the allocated radio resources and a cyclic shift amount to a mobile station; and a demodulating unit configured to demodulate a signal received from the mobile station based on one of the reference signal sequences corresponding to one of the radio resource bandwidths and the cyclic shift amount. Cell reuse is applied to the reference signal sequences to be transmitted using one resource unit, and sequence hopping where different ones of the reference signal sequences are assigned to consecutive subframes is applied to the reference signal sequences to be transmitted using a bandwidth greater than one resource unit.

Abstract: To obtain a high frequency diversity effect while suppressing inter-code interference in code multiplexing transmission in an OFDM-based radio access scheme, a transmission apparatus is provided with an orthogonal spreading code generating section (10) that generates different spreading codes based on orthogonal code sequences, a phase rotation giving section (11) and spreading modulation section (12) which provide the information symbols or spreading codes with different phase rotation for each symbol sequence and then, spreads the information symbols with the spreading codes for each symbol sequence, and a multiplexing section (13) that multiplexes spread symbols of different symbol sequences, where the information symbols or the spreading codes are rotated by a phase rotation amount such that overlaps in a signal constellation in polar coordinates of spread symbols for transmitting different information symbols are controlled to within a required range.

Abstract: A transmission apparatus is provided with radio resource assignment means that assigns radio resources to each physical channel according to a type of the physical channel; and transmission means that transmits information to be transmitted by each physical channel using the assigned radio resources.