Base station and method of controlling transmission power
AssigneeNtt Docomo, Inc.
InventorYoshikazu Goto
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Abstract
A base station in accordance with one embodiment of the present invention includes a cumulative value storage unit configured to store a cumulative value of transmission power control commands transmitted to a mobile station; a transmission power control command determination unit configured to determine a transmission power control command based on the cumulative value stored in the cumulative value storage unit, when uplink transmission power is initialized; and a control channel transmission unit configured to transmit the transmission power control command determined by the transmission power control command determination unit to the mobile station on a control channel.
Claims9
A base station, comprising:
- a cumulative value storage unit configured to store a cumulative value of transmission power control commands transmitted to a mobile station;
- a transmission power control command determination unit configured to determine a transmission power control command based on the cumulative value stored in the cumulative value storage unit, when uplink transmission power is initialized;
- and
- a control channel transmission unit configured to transmit the transmission power control command determined by the transmission power control command determination unit to the mobile station on a control channel.
A base station, comprising:
- a non-communication interval monitor unit configured to monitor a non-communication interval during which downlink data or uplink data are not transmitted;
- a control channel transmission unit configured to transmit control information for causing a mobile station to transmit data or control information, when the non-communication interval monitored by the non-communication interval monitor unit is equal to or longer than a predetermined threshold;
- and
- a transmission power control command determination unit configured to determine a transmission power control command based on received quality of data or control information received from the mobile station.
A method of controlling uplink transmission power in a base station, comprising the steps of:
- storing a cumulative value of transmission power control commands transmitted to a mobile station;
- determining a transmission power control command based on the stored cumulative value, when uplink transmission power is initialized;
- and
- transmitting the determined transmission power control command to the mobile station on a control channel.
A method of controlling uplink transmission power in a base station, comprising the steps of:
- monitoring a non-communication interval during which downlink data or uplink data are not transmitted;
- transmitting control information for causing a mobile station to transmit data or control information, when the monitored non-communication interval is equal to or longer than a predetermined threshold;
- and
- determining a transmission power control command based on received quality of data or control information received from the mobile station.
Dependencies are inferred from the claim text.