Method for transmitting and receiving a MBMS service in mobile communication system

1. A method for a mobile terminal receiving a multimedia service from a network, the method comprising:

receiving control information of a first bearer through a downlink control channel;

receiving control information of a second bearer through the downlink control channel based on the received control information of the first bearer;

receiving bearer setting information from the network through a Multimedia Broadcast/Multicast Service (MBMS) Control Channel (MCCH) if the first bearer and the second bearer each comprises a point-to-multipoint bearer;

receiving bearing setting information from the network through a Dedicated Control Channel (DCCH) if the first bearer and the second bearer each comprises a point-to-point bearer; and

receiving data of the first bearer and data of the second bearer through at least an MBMS Traffic Channel (MTCH) or a Dedicated Traffic Channel (DTCH),

wherein the first bearer and the second bearer have a Quality of Service (QoS) that is different from each other, and

wherein the first bearer and the second bearer provide the same multimedia service.

2. The method of claim 1 , wherein the downlink control channel is at least an MCCH or a MBMS notification Indicator Channel (MICH).

3. The method of claim 1 , wherein the first bearer and the second bearer are received via different common physical channels using different channel codes.

4. The method of claim 1 , further comprising combining the first bearer and the second bearer together upon reception.

5. The method of claim 1 , further comprising: deciding to use the first bearer or the second bearer based upon a capability of the mobile terminal.

6. The method of claim 1 , further comprising:

attempting to receive system information via an MCCH when Notification Indicator (NI) information is identified by the mobile terminal through an MBMS notification Indicator Channel (MICH).

7. The method of claim 1 , wherein the control information of the first bearer is received by the mobile terminal through a Modified Services Information (MSI) message in an MCCH.

8. The method of claim 1 , wherein the control information of the second bearer is received by the mobile terminal through a Modified Services Information (MSI) message or an Unmodified Services Information (USI) message in an MCCH.

9. The method of claim 1 , further comprising:

receiving access information for first radio bearer information when a counting process is required for at least the first bearer or the second bearer, wherein the access information includes a probability factor indicating a probability to transmit an access information response on a Random Access Channel (RACH).

10. The method of claim 9 , wherein the access information response includes a Release Indicator (RI).

11. The method of claim 1 , wherein the multimedia service is a point to multipoint service.

12. The method of claim 1 , wherein the multimedia service is an MBMS.

13. The method of claim 1 , wherein the first bearer and the second bearer are related to an MBMS bearer service.

14. A method for transmitting a Multimedia Broadcast/Multicast Service (MBMS) service from a network to a mobile terminal, the method comprising:

sending control information of a first bearer through a downlink control channel;

sending control information of a second bearer through the downlink control channel, wherein the control information of the second bearer is based on the control information of the first bearer;

determining whether to use a point-to-point bearer or a point-to-multipoint bearer for at least the first bearer or the second bearer;

sending bearer setting information to the mobile terminal through a Multimedia Broadcast/Multicast Service (MBMS) Control Channel (MCCH) if it is determined that the point-to-multipoint bearer is used;

sending bearing setting information to the mobile terminal through a Dedicated Control Channel (DCCH) if it is determined that the point-to-point bearer is used; and

sending data of the first bearer and data of the second bearer through at least an MBMS Traffic Channel (MTCH) or a Dedicated Traffic Channel (DTCH),

wherein the first bearer and the second bearer have a Quality of Service (QoS) that is different from each other, and

wherein the first bearer and the second bearer provide the same MBMS service.

15. The method of claim 14 , wherein the downlink control channel is at least an MCCH or an MBMS notification Indicator Channel (MICH).

16. The method of claim 15 , wherein the control information of the first bearer is contained in a Modified Services Information (MSI) message in the MCCH and the control information of the second bearer is contained in at least the MSI message or an Unmodified Services Information (USI) message in the MCCH.

17. The method of claim 14 , further comprising:

sending access information to the mobile terminal, wherein the access information comprises a counting process parameter for the first bearer.

18. The method of claim 17 , wherein the counting process parameter is a probability factor indicating a probability to transmit an access information response on a Random Access Channel (RACH).

19. The method of claim 18 , further comprising:

assigning a different priority for the first bearer and the second bearer based upon at least a RACH access service class, a RACH signature, a RACH access slot, or a logical channel priority.

20. The method of claim 18 , further comprising:

receiving a counting response, wherein the counting response includes a release indicator.