Method and Device for Resource Allocation Control in Radio Communications System

Abstract

A resource allocation control method and device that can reduce inter-cell interference in a radio communications system are provided. According to a method for resource allocation control between a plurality of cells in a radio communications system, radio communication devices respectively controlling at least two cells notify information about control resources of its own cell to each other. In the resources of its own cell, each of the radio communication devices sets a buffer resource within a predetermined resource range corresponding to a control resource of the other cell. At a request for information transmission in its own cell, each of the radio communication devices restricts the allocation of the set buffer resource.

1 . A wireless communication system including a first base station, a second base station and a mobile station, wherein
 said first base station transmits information relating to a resource allocation for a random access channel (RACH) of said first base station to said second base station;   said second base station determines a resource allocation for uplink communication so that the resource allocation for the uplink communication is different from the resource allocation for the RACH; and   said mobile station communicates with said second base station according to the resource allocation for the uplink communication.   
     
     
         2 . A communication method of a wireless communication system including a first base station, a second base station and a mobile station, comprising:
 transmitting, from said first base station, information relating to a resource allocation for a random access channel (RACH) of said first base station to said second base station;   determining, by said second base station, a resource allocation for uplink communication so that the resource allocation for the uplink communication is different from the resource allocation for the RACH; and   communicating, by said mobile station, with said second base station according to the resource allocation for the uplink communication.   
     
     
         3 . A base station in a wireless communication system including a mobile station, comprising:
 a receiver to receive, from other base station, information relating to a resource allocation for a random access channel (RACH) of said other base station;   a resource allocation unit to determine a resource allocation for uplink communication so that the resource allocation for the uplink communication is different from the resource allocation for the RACH; and   a communication unit to communicate with said mobile station according to the resource allocation for the uplink communication.   
     
     
         4 . A mobile station in a wireless communication system including a first base station and a second base station, comprising:
 a receiver to receive, from said second base station, information relating to a resource for uplink communication, wherein the resource is determined by said second base station so that the resource allocation for the uplink communication is different from a resource allocation for a random access channel (RACH) of said first base station; and   a communication unit to communicate with said second base station according to the resource for the uplink communication.