Method of transmitting/receiving control message in a mobile communication system providing multimedia broadcast/multicast service

1. A method for providing a multimedia broadcast/multicast service (MBMS) to a user equipment (UE) by a base station in a mobile communication system, the method comprising:

transmitting, to the UE, a first message including information about a scheduling period and an offset indicating a start point of the scheduling period;

transmitting, to the UE, a second message including information about at least one MBMS in the scheduling period, based on the information about the scheduling period and the offset; and

transmitting, to the UE, data of the at least one MBMS via an MBMS radio bearer (RB) established for the at least one MBMS,

wherein the information about the at least one MBMS includes an identification of the at least one MBMS.

2. The method of claim 1 , wherein the identification includes at least one of a temporary multicast group identity (TMGI) and a service identification.

3. The method of claim 1 , wherein transmitting the first message and the second message are performed in a type of broadcast within a coverage area of a cell.

4. The method of claim 1 , wherein the first message includes information about a data coding scheme applied to the second message.

5. A method for receiving a multimedia broadcast/multicast service (MBMS) in a user equipment (UE) of a mobile communication system, the method comprising:

receiving, from a base station, a first message including information about a scheduling period and an offset indicating a start point of the scheduling period;

receiving, from the base station, a second message including information about at least one MBMS, based on the information about the scheduling period and the offset;

performing an MBMS radio bearer (RB) establishment procedure for the at least one MBMS; and

receiving, from the base station, data of the at least one MBMS via an MBMS RB established for the at least one MBMS,

wherein the second message is transmitted by the base station in the scheduling period, and

wherein the information about the at least one MBMS includes an identification of the at least one MBMS.

6. The method of claim 5 , wherein the identification includes at least one of a temporary multicast group identity (TMGI) and a service identification.

7. The method of claim 5 , wherein the first message and the second message are broadcasted within a coverage area of a cell.

8. The method of claim 5 , wherein the first message includes information about a data coding scheme applied to the second message.

9. An apparatus of a base station for providing a multimedia broadcast/multicast service (MBMS) to a user equipment (UE) in a mobile communication system, the apparatus comprising:

a transceiver configured to transmit and receive messages to and from the UE; and

a controller configured to control the transceiver to transmit, to the UE, a first message including information about a scheduling period and an offset indicating a start point of the scheduling period, to transmit, to the UE, a second message including information about at least one MBMS in the scheduling period, based on the information about the scheduling period and the offset, and to transmit, to the UE, data of the at least one MBMS via an MBMS radio bearer (RB) established for the at least one MBMS,

wherein the information about the at least one MBMS includes an identification of the at least one MBMS.

10. The apparatus of claim 9 , wherein the identification includes at least one of temporary multicast group identity (TMGI) and a service identification.

11. The apparatus of claim 9 , wherein the transceiver transmits the first message and the second message in a type of broadcast within a coverage area of a cell.

12. The apparatus of claim 9 , wherein the first message includes information about a data coding scheme applied to the second message.

13. An apparatus of a user equipment (UE) for receiving a multimedia broadcast/multicast service (MBMS) in a mobile communication system, the apparatus comprising:

a transceiver configured to transmit and receive messages to and from a base station; and

a controller configured to control the transceiver to receive, from the base station, a first message including information about a scheduling period and an offset indicating a start point of the scheduling period, to receive, from the base station, a second message including information about at least one MBMS, based on the information about the scheduling period and the offset, to perform an MBMS radio bearer (RB) establishment procedure for the at least one MBMS, and to receive, from the base station, data of the at least one MBMS via an MBMS RB established for the at least one MBMS,

wherein the second message is transmitted by the base station in the scheduling period, and

wherein the information about the at least one MBMS includes an identification of the at least one MBMS.

14. The apparatus of claim 13 , wherein the identification includes at least one of a temporary multicast group identity (TMGI) and a service identification.

15. The apparatus of claim 13 , wherein the first message and the second message are broadcasted within a coverage area of a cell.

16. The apparatus of claim 13 , wherein the first message includes information about a data coding scheme applied to the second message.