Method for controlling an uplink power in a wireless communication system and an apparatus in the system
AssigneeFujitsu Limited
InventorTakato Ezaki
Life of this patent
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Abstract
In a wireless communication system including a wireless terminal, a first wireless base station, a second wireless base station which supports a wireless channel which is not supported by the first wireless base station and an upper level apparatus which accommodates the wireless base stations, the upper level apparatus monitors interference power in the wireless base station and carries out, where a result of the monitoring exceeds a predetermined threshold value, suppression control of transmission power of the wireless terminal which communicates with the second wireless base station using the wireless channel which is not supported by the first wireless base station.
Claims16
A method for controlling an uplink power in a wireless communication system which includes a wireless terminal, a first wireless base station, a second wireless base station which supports a wireless channel which is not supported by the first wireless base station, and an upper level apparatus which accommodates the first and second wireless base stations, the method comprising:
- on the upper level apparatus,
- monitoring interference power in the first wireless base station;
- and
- carrying out, where a result of the monitoring exceeds a predetermined threshold value, suppression control of transmission power of the wireless terminal which communicates with the second wireless base station using the wireless channel which is not supported by the first wireless base station, wherein
- the monitoring of the interference power is carried out in a unit of a first cell where a wireless zone formed by the first wireless base station is divided into such first cells, and
- the wireless terminal which is a target of the suppression control exists in a cell which is a second cell where a wireless zone formed by the second wireless base station is divided into such second cells and neighbors with the first cell in which the result of the monitoring exceeds the predetermined threshold value.
An apparatus in a wireless communication system which includes a wireless terminal, a first wireless base station, a second wireless base station which supports a wireless channel which is not supported by the first wireless base station, and said apparatus which accommodates the first and second wireless base stations, the apparatus comprising:
- a monitor that monitors interference power in the first wireless base station;
- and
- a controller that carries out, where a result of the monitoring by said monitor exceeds a predetermined threshold value, suppression control of transmission power of the wireless terminal which communicates with the second wireless base station using the wireless channel which is not supported by the first wireless base station, wherein
- said monitor carries out the monitoring of the interference power in a unit of a first cell where a wireless zone formed by the first wireless base station is divided into such first cells, and
- said controller selects, as the wireless terminal which is a target of the suppression control, a wireless terminal which exists in a cell which is a second cell where a wireless zone formed by the second wireless base station is divided into such second cells and neighbors with the first cell in which the result of the monitoring exceeds the predetermined threshold value.
Dependencies are inferred from the claim text.