CLUSTER-BASED COOPERATIVE COMMUNICATION SYSTEM AND METHOD

• US 20100136994A1
• Filed: 12/02/2009
• Published: 06/03/2010
• Est. Priority Date: 12/02/2008
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: KIM, Yu Seok, KIM, Eun Yong, KO, Eun Seok, KIM, Yung Soo
• Granted Patent: US 8,301,182 B2
• Time in Patent Office: Days
• US Class Current: 455/450
• CPC Class Codes: H04L 5/0035 Resource allocation in a cooperative multipoint environment
• CPC Class Codes: H04W 72/541 using the level of interference

Abstract

A cluster-based cooperative communication system and method is provided for mitigating inter-cell interference effectively. A cluster-based cooperative communication method of a mobile station includes receiving allocation of a resource of a weighted subband mapped to one of preset cooperative base station clusters, the selected cooperative base station cluster having a group including a serving base station of the mobile station and dominant interfering base stations found by channel estimation, and communicating with the serving base station in cooperation with the dominant interfering base stations.

Claims

1. A cluster-based cooperative communication method of a mobile station, the method comprising:

receiving allocation of a resource of a weighted subband mapped to one of preset cooperative base station clusters, the selected cooperative base station cluster having a group including a serving base station of the mobile station and dominant interfering base stations found by channel estimation; and

communicating with the serving base station in cooperation with the dominant interfering base stations.

2. The method of claim 1, wherein the receiving of the allocation of the resource comprises:

selecting, at the serving base station, the cooperative base station cluster having the group including the serving base station and the dominant interfering base stations; and

allocating the resource by weighting the subband mapped to the selected cooperative base station cluster.

3. The method of claim 1, wherein the receiving of the allocation of the resource comprises:

reporting the cooperative base station cluster having the group including the serving base station and the dominant interfering base stations from the mobile station to the serving base station; and

allocating, at the serving base station, the resource by weighting the subband mapped to the selected cooperative base station cluster to the mobile station.

4. A cluster-based cooperative communication method of a base station, the method comprising:

allocating a resource of a weighted subband mapped to one of preset cooperative base station clusters to a mobile station, the selected cooperative base station cluster having a group including a serving base station of the mobile station and dominant interfering base stations found by channel estimation; and

communicating with the mobile station in cooperation with the dominant interfering base stations.

5. The method of claim 4, wherein the allocating of the resource the weighted subband comprises:

selecting the cooperative base station cluster having the group including the serving base station and the dominant interfering base stations; and

allocating the resource by weighting the subband mapped to the selected cooperative base station cluster.

6. The method of claim 4, wherein the allocating of the resource the weighted subband comprises:

reporting the cooperative base station cluster having the group including the serving base station and the dominant interfering base stations from the mobile station to the serving base station; and

allocating the resource by weighting the subband mapped to the selected cooperative base station cluster to the mobile station.

7. A cluster-based cooperative communication system, the system comprising:

a mobile station for receiving allocation of a resource of a weighted subband mapped to one of preset cooperative base station clusters, the selected cooperative base station cluster having a group including a serving base station of the mobile station, and dominant interfering base stations found by channel estimation, and for communicating with the serving base station in cooperation with the dominant interfering base stations.

8. The system of claim 7, wherein the serving base station selects the cooperative base station cluster having the group including the serving base station and the dominant interfering base stations, and allocates the resource by weighting the subband mapped to the selected cooperative base station cluster.

9. The system of claim 7, wherein the mobile station reports the cooperative base station cluster having the group including the serving base station and the dominant interfering base stations from the mobile station to the serving base station, and the base station allocates the resource by weighting the subband mapped to the selected cooperative base station cluster to the mobile station.

10. A cluster-based cooperative communication system, the system comprising:

a serving base station for allocating a resource of a weighted subband mapped to one of preset cooperative base station clusters to a mobile station, the selected cooperative base station cluster having a group including a serving base station of the mobile station, and dominant interfering base stations found by channel estimation, and for communicating with the mobile station in cooperation with the dominant interfering base stations.

11. The system of claim 10, wherein the serving base station selects the cooperative base station cluster having the group including the serving base station and the dominant interfering base stations and allocates the resource by weighting the subband mapped to the selected cooperative base station cluster.

12. The system of claim 10, wherein the mobile station reports the cooperative base station cluster having the group including the serving base station and the dominant interfering base stations from the mobile station to the serving base station, and the serving base station allocates the resource by weighting the subband mapped to the selected cooperative base station cluster to the mobile station.