Method and device for managing resources of base station in wireless communication system
A method and a device for managing resources of a base station in a wireless communication system is provided. The method comprises: calculating an average resource use of serving resources, which are used as downlinks from a serving base station to a plurality of communication terminals; selecting one of the communication terminals, which has a maximum interference from a neighbor base station, if the calculated average resource use exceeds a preset threshold; and making a reservation for at least one of neighbor resources used as downlinks from the neighbor base station, the at least one neighbor resource corresponding to the serving resource for the selected communication terminal, so that the neighbor base station may decrease transmission power in the at least one neighbor resource.
1. A resource management method of a base station in a wireless communication system, the method comprising:
calculating, at a serving base station, average resource use amount of serving resources for use in downlink corresponding to multiple terminals;
selecting, when the average resource use amount is greater than a predetermined threshold, one of terminals, the selected terminal undergoing a highest interference from a neighbor base station; and
reserving at least one neighbor resources of the neighbor base station for use in downlink for reducing transmission power of selected neighbor resource, the selected neighbor resource corresponding to the serving resource for the selected terminal,
wherein the reserving comprises:
determining at least one interference combination including at least one neighbor base station;
predicting a processing amount per serving resource at the selected terminal in correspondence to the at least one interference combination; and
reserving at least one of the neighbor resources of the interference combination which is selected among the at least interference combination depending on the predicted processing amount.
2. The method of claim 1 , further comprising recovering, when reservation of at least one of the neighbor resources fails, the reserved serving resource by increasing reduced transmission power in correspondence to the serving resource reserved for the neighbor base station.
3. The method of claim 2 , further comprising reducing, when one of the serving resources is reserved by the neighbor base station, the transmission power on the reserved serving resource.
4. The method of claim 1 , wherein determining comprises checking neighbor base stations via the selected terminal.
5. The method of claim 1 , wherein reserving comprises:
requesting the neighbor base station for reservation of the neighbor resource; and
confirming, when the neighbor base station accept reservation of the neighbor resource, the reservation of the neighbor resource to the neighbor base station.
6. The method of claim 1 , further comprising:
transmitting indices of the serving resources and transmission power per serving resource to the neighbor base station; and
sharing, at the neighbor base station, the resource information by receiving the indices of the neighbor resources and transmission power per serving resource.
7. A resource management apparatus of a base station in a wireless communication system, the apparatus comprising:
a transceiver configured to transmit and receive a signal; and
a processor configured to:
calculate average resource use amount of serving resources for use in downlink in corresponding to multiple terminals
select, when the average resource use amount is greater than a predetermined threshold, one of terminals, the selected terminal undergoing highest interference from a neighbor base station,
reserve at least one of neighbor resources of the neighbor base station for use in downlink for reducing transmission power of selected neighbor resource, the selected neighbor resource corresponding to the serving resource for the selected terminal,
determine at least one interference combination including at least one neighbor base station,
predict a processing amount per serving resource at the selected terminal in correspondence to the at least one interference combination, and
reserve at least one of the neighbor resources of the interference combination which is selected among the at least interference combination depending on the predicted processing amount.
8. The apparatus of claim 7 , wherein the processor is further configured to recover, when reservation of at least one of the neighbor resources fails, the reserved serving resource by increasing reduced transmission power in correspondence to the serving resource reserved for the neighbor base station.
9. The apparatus of claim 8 , wherein the processor is configured to reduce, when one of the serving resources is reserved by the neighbor base station, the transmission power on the reserved serving resource.
10. The apparatus of claim 8 , wherein the processor is further configured to check neighbor base stations via the selected terminal.
11. The apparatus of claim 7 , wherein the processor is further configured to:
request the neighbor base station for reservation of the neighbor resource; and
confirm, when the neighbor base station accept reservation of the neighbor resource, the reservation of the neighbor resource to the neighbor base station.
12. The apparatus of claim 7 , wherein the processor is further configured to control the transceiver to:
transmit indices of the serving resources and transmission power per serving resource to the neighbor base station, and
share the resource information by receiving the indices of the neighbor resources and transmission power per serving resource.