Radio communication control system, radio base station and radio communication control method
AssigneeNtt Docomo, Inc.
InventorsHiroyuki Ishii, Akihito Hanaki, Tomoki Sao, Takehiro Nakamura
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Abstract
A radio communication control system controlling a transmission power of a shared control channel for transmitting a control signal to a plurality of mobile stations. The system includes a transmission power lower limit value setting section configured to set a lower limit value of the transmission power of the shared control channel, and to set the transmission power of the shared control channel at the lower limit value when the transmission power of the shared control channel is lower than the lower limit value.
Claims14
A radio communication control system which performs a data communication by sharing a shared data channel among a plurality of mobile stations, comprising:
- a transmission power minimum value setting section configured to:
- (1) set a minimum value of a transmission power of a shared control channel for transmitting a control signal for the shared data channel when the transmission power of the shared control channel is controlled, and
- (2) set the transmission power of the shared control channel at the minimum value when the transmission power of the shared control channel is less than the minimum value so that a quality of the shared control channel becomes higher, at a center of a cell or in an environment where a high throughput rate is achievable, than a quality of the shared control channel when the transmission power is less than the minimum value.
A radio base station in a radio communication control system which performs a data communication by sharing a shared data channel among a plurality of mobile stations, comprising:
- a transmission power minimum value setting section configured to:
- (1) set a minimum value of a transmission power of a shared control channel for transmitting a control signal for the shared data channel when the transmission power of the shared control channel is controlled, and
- (2) set the transmission power of the shared control channel at the minimum value when the transmission power of the shared control channel is lower than the minimum value so that a quality of the shared control channel becomes higher, at a center of a cell or in an environment where a high throughput rate is achievable, than a quality of the shared control channel when the transmission power is less than the minimum value.
A radio communication control method in a radio communication control system which performs a data communication by sharing a shared data channel among a plurality of mobile stations, comprising:
- setting a minimum value of a transmission power of a shared control channel for transmitting a control signal for the shared data channel when the transmission power of the shared control channel is controlled;
- and
- setting the transmission power of the shared control channel at the minimum value when the transmission power of the shared control channel is lower than the minimum value so that a quality of the shared control channel becomes higher, at a center of a cell or in an environment where a high throughput rate is achievable, than a quality of the shared control channel when the transmission power is less than the minimum value.
Dependencies are inferred from the claim text.