Patent ID: 8315239
Filing Date: 2012-11-20
Classification: H04W

Abstract:
1. An apparatus for allocating radio resources in a wireless communication system, the apparatus comprising: a scheduler for selecting one of at least two resource allocation schemes in consideration of an amount of resources necessary for a transmission of data to a user terminal and an amount of the remaining resources, and determining a group index of radio resources for the user terminal according to the selected resource allocation scheme; a resource allocator for allocating radio resources corresponding to the determined group index to the user terminal; and a resource allocation information generator for generating radio resource allocation information for transmitting radio resource information allocated to the user terminal, wherein the radio resource allocation information includes resource allocation scheme information and the group index, and wherein the at least two resource allocation schemes include a first scheme in which the base station groups all of the radio resources in a same size and allocates radio resources using a group start index and a resource length index according to an amount of radio resources needed by the user terminal, and a second scheme in which the base station constructs a tree of all of the radio resources using tree nodes and allocates radio resources using the tree nodes according to the amount of radio resources needed by the user terminal.