摘要:
A radio base station (eNB) according to the present invention includes an aggregation level determination unit configured to determine an aggregation level based on CQI notified from a mobile station (UE), a control channel element assignment unit configured to assign a plurality of continuous CCE to a PDCCH addressed to the mobile station (UE), based on the determined aggregation level, and a resource assignment unit configured to assign resource element groups constituting the assigned CCE as a resource for the PDCCH addressed to the mobile station (UE). The control channel element assignment unit is configured to assign a plurality of continuous CCE to the PDCCH addressed to the mobile station (UE) based on an aggregation level changed by the aggregation level determination unit, when failing to assign CCE to the PDCCH addressed to the mobile station (UE).
摘要:
A base station apparatus is used in a mobile communication system that uses an OFDM scheme in a downlink. The base station apparatus includes: a unit configured to perform inverse Fourier transform on a signal in which a first signal and a second signal is mapped to subcarriers with different transmission power density, and to generate a transmission signal; and a transmission unit configured to transmit the transmission signal to a user apparatus. A subcarrier (prohibited subcarrier) in which mapping of the second signal is prohibited is determined such that transmission power density of the second signal is kept constant among a plurality of OFDM symbols regardless of whether the first signal is included in an OFDM symbol including the second signal. The prohibited subcarrier is determined based on a subcarrier to which the first signal is mapped.
摘要:
User equipment 100n comprises a connection state processing section configured so that the connection state processing section measures the communication quality in a cell belonging to two or more layers, reports the result of the measurement to a base station device 200, and performs handover processing according to the instruction from the base station device 200 on the basis of first priority notified by a first control signal notified from the base station device 200 in an RRC_Connected state and a stand-by state processing section configured so that the stand-by state processing section measures the communication quality in the cell belonging to the two or more layers to determine a cell for performing a stand-by according to the result of the measurement on the basis of second priority notified by a second control signal notified from the base station device 200 in an Idle state.
摘要:
A radio base station includes: a measurement unit which measures a resource use amount in each time frame within predetermined period; a downlink persistent allocation signal transmission unit which transmits to a mobile station, a persistent allocation signal indicating a downlink radio resource allocation start moment; and a downlink communication unit which transmit downlink data using downlink radio resource starting at the downlink radio resource allocation start moment. The downlink persistent allocation signal transmission unit decides the downlink radio resource allocation start moment in accordance with a resource use amount in each time frame.
摘要:
A base station apparatus includes a scheduler configured to schedule assignment of radio resources based on a scheduling coefficient for one or more user equipments, a control signal generation unit configured to generate a control signal including reporting indication information for indicating whether the user equipment is to report downlink channel state information and scheduling grant information for indicating the scheduled assignment of the radio resources and a transmitting unit configured to transmit the control signal in a downlink. A cumulative value is calculated for each of the user equipments. The reporting indication information transmitted to a user equipment, whose cumulative value reaches a predefined value, indicates that the user equipment is to report the downlink channel state information. The cumulative value is updated if the scheduling coefficient satisfies a predefined condition.
摘要:
Embodiments of the present invention prevent a magnetic disk drive from increasing in size and in manufacturing cost and reduces a positioning error of a magnetic head. An embodiment of a magnetic disk drive in accordance with the present invention includes: a disk-shaped magnetic disk that is rotated and driven; a magnetic head that reads and writes information to and from the magnetic disk, an arm that supports and moves the magnetic head; a spoiler that is close to a disk surface and extends in a radial direction of the disk; and a cabinet that houses these parts. The spoiler is disposed closer to an upstream side in a rotational direction of the disk than the arm and has a flow rate suppressing clearance positioned in a central portion in a peripheral direction of the spoiler, opened to both sides in an axial direction, and formed in a shape elongated in a radial direction of the disk.
摘要:
When a closed loop transmission diversity control is performed by controlling the phase of the transmission signals from the plurality of antennas according to feedback information noticed by the mobile station to transmit the signals, an antenna verification on-off control unit 370 controls the on-off of an antenna verification process of estimating the phase of the transmission signals from the plurality of antennas according to the information about the channel of the signals transmitted in the uplink from the mobile station to a radio base station. Thus, depending on the channel type (for example, a packet channel, a voice channel, etc.), the on-off control is performed on the antenna verification process, thereby performing easier and more appropriate control and improving the quality of a channel.
摘要:
A mobile station (100) according to the present invention includes: a transmitter unit (110) configured to transmit an uplink shared signal at a first time interval based on a received first downlink control signal; and a retransmitter unit (110) configured to retransmit the uplink shared signal at a second time interval based on a second downlink control signal received at a third time interval allocated fixedly. When the third time interval overlaps a time interval for measurement by the mobile station (100), the transmitter unit (110) is configured to transmit the uplink shared signal at the first time interval and the retransmitter unit (110) is configured not to retransmit the uplink shared signal at the second time interval.
摘要:
A resin composition (2) such as a photo-curable resin composition or a heat curable or thermosetting resin composition is placed on an optical substrate (1). A printing pressure is applied to the side of the resin composition (2) of the optical substrate (1) with the resin composition (2) by means of an extra-flat pressing plate having a flatter plane than the optical substrate (1). The resin composition is cured by utilizing light or a temperature change to form a composite substrate. A thin film (4) such as a functional inorganic optical film, a dielectric multilayered optical thin film, or an optical functional metallic film is stacked on the composite substrate, for example, by low-temperature sputtering or ion beam sputtering to form an optical component such as a reflection mirror, a beam splitter, a band-pass filter, a band-stop filter, and an edge filter.
摘要:
A base station communicating with user equipments using shared channels. The base station includes a congestion level estimation unit estimating a congestion level of a cell; a priority-level/desired-value changing unit changing priority levels or desired minimum transmission rates of data to be transmitted by the user equipments or the base station based on the congestion level of the cell; and a selection unit selecting one or more of the user equipments to which radio resources are to be allocated based on the changed priority levels or the changed desired minimum transmission rates of the data.