User terminal, radio base station and radio communication method
AssigneeNtt Docomo, Inc.
InventorsKazuki TAKEDA, Shimpei YASUKAWA, Satoshi NAGATA
Life of this patent
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Abstract
The present invention is designed to control inter-cell interference adequately even when a plurality of cells are placed at a high density. A user terminal can connect with a plurality of radio base stations, and has a receiving section that receives a downlink signal from each radio base station, and a power control section that, when an uplink grant or a downlink assignment and a control signal for power control are detected at the same time from the downlink signal, prioritizes a TPC command contained in the control signal for power control, and changes transmission power.
Claims9
A user terminal that is configured to be able to connect with a plurality of radio base stations, comprising:
- a receiving section that receives a downlink signal from each of the radio base stations;
- and
- a power control section that, when an uplink grant or a downlink assignment and a control signal for power control are detected at the same time from the downlink signal, prioritizes a TPC command contained in the control signal for power control to change transmission power.
A radio base station that communicates with a user terminal that is configured to be able to connect with a plurality of radio base stations, comprising:
- a generating section that generates power control command information that, when a user terminal detects an uplink grant or a downlink assignment and a control signal for power control at the same time, prioritizes a TPC command contained in the control signal for power control to changes transmission power;
- and
- a transmission section that transmits a downlink signal and the power control command information to the user terminal.
A radio communication method for a plurality of radio base stations and a user terminal that is configured to be able to connect with the plurality of radio base stations, the radio communication method comprising the steps of:
- in the user terminal,
- receiving a downlink signal from each of the radio base stations;
- and
- when an uplink grant or a downlink assignment and a control signal for power control are detected at the same time from the downlink signal, prioritizing a TPC command contained in the control signal for power control to change transmission power.
Dependencies are inferred from the claim text.