A method for using resources in a multi-sector communication system, wherein the system comprises base stations and mobile stations, each base station having a cell as a communication area and providing communication services to the mobile stations in the plurality of sectors of the cell using respective sector antennae, the method comprising: dividing, by the base station, a communication area of a cell including a plurality of sectors into sector central regions in which each sector antenna serves exclusively, inter-sector boundary regions in which service coverages of at least two sector antennae are overlapped and the at least two sector antennae serve simultaneously, and a sector common region which is a central region of the cell in which at least two sector antennae serve simultaneously; dividing the frequency resources available to the communication system into at least a sector dedicated band and an inter-sector shared band and allocating the divided frequency resources as at least one frequency resource for the at least one sector central region and at least one frequency resource for the at least one inter-sector boundary region; and allocating the divided frequency resources to at least one mobile station located in the respective regions, including allocating frequency resources of the sector dedicated band to mobile stations located in one of the sector central regions, allocating frequency resources of the sector dedicated band to mobile stations located in sector central regions of other sectors in the same cell for resource reuse, and allocating frequency resources of the inter-sector shared band to at least one mobile station located in at least one inter-sector boundary region in a manner that the frequency resources of the inter-sector shared band are not used in two sectors adjacent to the inter-sector boundary region. dividing, by the base station, a communication area of a cell including a plurality of sectors into sector central regions in which each sector antenna serves exclusively, inter-sector boundary regions in which service coverages of at least two sector antennae are overlapped and the at least two sector antennae serve simultaneously, and a sector common region which is a central region of the cell in which at least two sector antennae serve simultaneously; dividing the frequency resources available to the communication system into at least a sector dedicated band and an inter-sector shared band and allocating the divided frequency resources as at least one frequency resource for the at least one sector central region and at least one frequency resource for the at least one inter-sector boundary region; and allocating the divided frequency resources to at least one mobile station located in the respective regions, including allocating frequency resources of the sector dedicated band to mobile stations located in one of the sector central regions, allocating frequency resources of the sector dedicated band to mobile stations located in sector central regions of other sectors in the same cell for resource reuse, and allocating frequency resources of the inter-sector shared band to at least one mobile station located in at least one inter-sector boundary region in a manner that the frequency resources of the inter-sector shared band are not used in two sectors adjacent to the inter-sector boundary region.