Patent ID: 7542776

Claim:
An uplink radio resource allocation method for allocating, at a radio base station, an uplink radio resource used for uplink user data transmission to a mobile station, comprising: comparing, at the radio base station, total received power in an particular cell of the radio base station with a first target value assigned by a radio network controller; comparing, at the radio base station, a ratio of first received power from a serving mobile station to second received power from a non-serving mobile station with a second target value assigned by the radio network controller, when the total received power is not larger than the first target value, a serving cell of the serving mobile station being the particular cell, a non-serving cell of the non-serving mobile station being the particular cell; and maintaining, at the radio base station, the uplink radio resource allocated to the non-serving mobile station unchanged, when the ratio is not smaller than the second target value.