Communication system, communication apparatus, communication method and computer program
AssigneeSony Corporation
InventorHiroaki Takano
Life of this patent
Estimating the term…
Abstract
By deciding positions of frequencies used via a relay station by a system in advance for assignment of boundary frequencies, frequencies of a central frequency more likely to be affected by the relay station are also mapped by avoiding a signal thereof. Alternatively, an adjacent cell whose central frequency is affected changes depending on a position of the relay station and thus, locations set to be highly likely to interfere with the central frequency of the adjacent cell is reduced by setting a region of the boundary frequencies permitted to the relay station in accordance with the position of the relay station.
Claims19
A base station in a first cell, the base station comprising:
- a position information holding circuit that stores first position information of each relay station in the first cell;
- a backhaul communication circuit that receives second position information of each relay station in a second cell from a second base station in the second cell, the position information holding circuit storing the second position information of each relay station in the second cell;
- a relay station frequency assignment circuit that assigns frequency bands for each relay station of the first cell in accordance with the first position information and the second position information;
- a notification circuit that notifies the second base station in the second cell of interference information that includes at least a level of interference from the second cell, a level of power for managing radio resources, or the determined frequency bands;
- and
- a scheduling circuit that schedules the radio resources in the first cell according to the interference information, wherein
- each of the first cell and the second cell include a center region and a boundary region.
A communication method, performed by a base station in a first cell, the communication method comprising:
- storing, by a position information holding circuit, first position information of each relay station in the first cell;
- receiving, by backhaul communication circuit, second position information of each relay station in a second cell from a second base station in the second cell;
- storing, by the position information holding circuit, the second position information of each relay station of the second cell;
- assigning, by a relay station frequency assignment circuit, frequency bands for each relay station of the first cell in accordance with the first position information and the second position information;
- notifying, by a notification circuit of the base station, the second base station in the second cell of interference information that includes at least a level of interference from the second cell, a level of power for managing radio resources, or the determined frequency bands;
- and
- scheduling, by a scheduling circuit of the base station, the radio resources in the first cell according to the interference information, wherein
- each of the first cell and the second cell include a center region and a boundary region.
A non-transitory computer readable medium storing computer readable instructions that, when executed by a base station in a first cell, the base station including circuitry, causes the base station to:
- store first position information of each relay station in the first cell;
- receive second position information of each relay station in a second cell from a second base station in the second cell;
- store the second position information of each relay station in the second cell;
- assign frequency bands for each relay station of the first cell in accordance with the first position information and the second position information;
- notify the second base station in the second cell of interference information that includes at least a level of interference from the second cell, a level of power for managing radio resources, or the determined frequency bands;
- and
- schedule the radio resources in the first cell according to e interference information, wherein
- each of the fir t cell and he second cell include a center region and a boundary region.
Dependencies are inferred from the claim text.