Method and apparatus for controlling the transmission power of a base station in a wireless communication system
First Claim
1. A transmission power control method of a base station in a wireless communication system, the method comprising:
- calculating signal-to-noise ratio of a target component carrier; and
if the signal-to-noise ratio is less than a predetermined threshold, increasing a transmission power of the base station to a first predetermined level or requesting a neighbor base station to decrease a transmission power of the neighbor base station,wherein the neighbor base station is requested to decrease the transmission power of the neighbor base station if a neighbor signal-to-noise ratio calculated at the neighbor base station in correspondence to the component carrier is equal to or greater than a predetermined neighbor threshold.
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Abstract
The present invention relates to a method and apparatus for controlling transmission power of the base station in a wireless communication system and includes calculating signal-to-noise ratio of a target component carrier and recovering the signal-to-noise ratio to be equal to or greater than a threshold by increasing a transmission power to a predetermined level and requesting, when the signal-to-noise ratio is less than a predetermined threshold, a neighbor base station to decrease the transmission power. According to the present invention, it is possible to suppress the inter-cell interference and improve channel utilization efficiency, resulting in improvement of the throughput of the wireless communication system.
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Citations
16 Claims
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1. A transmission power control method of a base station in a wireless communication system, the method comprising:
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calculating signal-to-noise ratio of a target component carrier; and if the signal-to-noise ratio is less than a predetermined threshold, increasing a transmission power of the base station to a first predetermined level or requesting a neighbor base station to decrease a transmission power of the neighbor base station, wherein the neighbor base station is requested to decrease the transmission power of the neighbor base station if a neighbor signal-to-noise ratio calculated at the neighbor base station in correspondence to the component carrier is equal to or greater than a predetermined neighbor threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A transmission power control apparatus of a base station in a wireless communication system, the apparatus comprising:
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a signal-to-noise ratio calculator configured to calculate a signal-to- noise ratio of a target component carrier; and a power regulator configured to increase a transmission power of the base station to a first predetermined level or to request a neighbor base station to decrease a transmission power of the neighbor base station, if the signal-to- noise ratio is less than a predetermined threshold, wherein the power regulator is configured to request a neighbor base station to decrease a transmission power of the neighbor base station if a neighbor signal-to-noise ratio calculated at the neighbor base station in correspondence to the component carrier is equal to or greater than a predetermined neighbor threshold. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification