Method for signaling of resource allocation to adjust granularity in cellular multi-carrier system
A method for adjusting a granularity of resource allocation in a wireless mobile communication system supporting a compact scheduling is disclosed. A resource indication value (RIV) corresponds to a start index (S) of one set of consecutive virtual resource blocks (VRBs) and a length of the VRBs. The start index (S) is selected from among ‘s’ values (where s=P+mT<N RB ), and the length (L) is selected from among ‘l’ values (where 1=K+nG≦N RB ). Here, P is a predetermined integer of 0 or higher, T or G is a predetermined natural number, m is an integer of 0 or higher, and n is a natural number.
1. A method for detecting a resource indication value (RIV) indicating a start index (S) of consecutive virtual resource blocks (VRBs) and a length (L) of the consecutive VRBs in a wireless mobile communication system, the method comprising:
receiving downlink control information including resource block allocation information; and
detecting the resource indication value (RIV) from the resource block allocation information,
wherein, if Y−1≦└X/2┘ is given, the resource indication value (RIV) is denoted by RIV=X(Y−1)+Z, or else the resource indication value (RIV) is denoted by RIV=X(X−Y+1)+(X−1−Z),
where X is denoted by X=└N RB /G┘, Y is denoted by Y=L/G, and Z is denoted by Z=S/G, in which, L is the length of the consecutive virtual resource blocks (VRBs), S is the start index of the consecutive virtual resource blocks (VRBs), N RB is the number of resource blocks (RBs) available in the wireless mobile communication system, each of L and S is a multiple of G, and G is a predetermined natural number.
2. The method according to claim 1 , wherein, a length (N bit — required ) of a bit field used for transmitting the resource indication value (RIV) is denoted by N bit — required =┌log 2 (RIV max +1)┐, where RIV max is denoted by RIV max =└N RB /G┘·(└N RB /G┘+1)/2−1.
3. The method according to claim 1 , wherein the N RB value is denoted by N RB =└N VRB /G┘·G, where N VRB is the number of virtual resource blocks (VRBs) available in the wireless mobile communication system.
4. The method according to claim 1 , wherein the G value is 1 (G=1).
5. The method according to claim 2 , wherein the N RB value is denoted by N RB =└N VRB /G┘·G, where N VRB is the number of virtual resource blocks (VRBs) available in the wireless mobile communication system.
6. The method according to claim 2 , wherein the G value is 1 (G=1).