Resource allocation method and a method for transmitting/receiving resource allocation information in mobile communication system

A method for transmitting data in a mobile communication system, the method comprising:

• constructing, by a base station, a control channel signal including first information and second information via a control channel, the first information indicating one of N resource block (RB) sets, and the second information including a bitmap indicating whether or not a corresponding RB is allocated in the indicated RB set;
• and
• transmitting, by the base station, the control channel signal via the control channel;
• and
• transmitting, by the base station, the data corresponding to the control channel,
• wherein:
• the indicated RB set comprises a plurality of resource block groups (RBGs), in which neighboring RBGs are spaced by N−1 RBG(s);
• a size of an RBG is N consecutive RBs;
• a size of an RB is a predetermined number of consecutive subcarriers;
• and
• N is an integer equal to or greater than 2.

A user equipment (UE) for use in a mobile communication system, the UE comprising:

• a receiver;
• and
• a controller configured to cause the receiver to:
• receive a control channel signal including first information and second information via a control channel, the first information indicating one of N resource block (RB) sets, and the second information including a bitmap indicating whether or not a corresponding RB is allocated in the indicated RB set;
• and
• receive the data using the control channel signal,
• wherein:
• the indicated RB set comprises a plurality of resource block groups (RBGs), in which neighboring RBGs are spaced by N−1 RBG(s);
• a size of an RBG is N consecutive RBs;
• a size of an RB is a predetermined number of consecutive subcarriers;
• and
• N is an integer equal to or greater than 2.