초록 ▼

A control message transmitting/receiving method in an MBMS-supporting mobile communication system. In the present invention, an RNC periodically transmits control messages related to MBMS RB setup to UEs. Thus, although a UE initially fails to receive an intended MBMS service, it can set up an MBMS

A control message transmitting/receiving method in an MBMS-supporting mobile communication system. In the present invention, an RNC periodically transmits control messages related to MBMS RB setup to UEs. Thus, although a UE initially fails to receive an intended MBMS service, it can set up an MBMS RB by receiving a related retransmitted control message. Also, the RNC periodically provides information about ongoing MBMS services on a cell basis so that a UE can decide whether its requested MBMS service is in progress and request information required to set up an MBMS RB for the MBMS service to the RNC by individual signaling.

대표청구항 ▼

1. A method for providing a Multimedia Broadcast/Multicast Service (MBMS) to a User Equipment (UE) in a radio access network in a mobile communication system, the method comprising the steps of: transmitting a first message including information about a scheduling period and an offset indicating a s

1. A method for providing a Multimedia Broadcast/Multicast Service (MBMS) to a User Equipment (UE) in a radio access network in a mobile communication system, the method comprising the steps of: transmitting a first message including information about a scheduling period and an offset indicating a start point of the scheduling period to the UE;repeatedly transmitting a second message including information about ongoing MBMSs to the UE in every scheduling period, according to the information about the scheduling period and the offset; andtransmitting data of at least one of the ongoing MBMSs to the UE via an MBMS Radio Bearer (RB) established for the at least one of the ongoing MBMSs,wherein the information about the ongoing MBMSs includes service IDentifications (IDs) of the ongoing MBMSs. 2. The method of claim 1, wherein transmitting the first message and repeatedly transmitting the second message to the UE are performed in a type of broadcast within a coverage area of a cell. 3. The method of claim 1, wherein the first message and the second message are transmitted to the UE via a Node B. 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) in a mobile communication system, the method comprising the steps of: receiving a first message including information about a scheduling period and an offset indicating a start point of the scheduling period from a radio access network;receiving a second message including information about ongoing MBMSs from the radio access network according to the information about the scheduling period and the offset;applying an MBMS Radio Bearer (RB) establishment procedure for at least one of the ongoing MBMSs; andreceiving data of the at least one of the ongoing MBMSs from the radio access network,wherein the second message is repeatedly transmitted by the radio access network in every scheduling period,wherein the information about the ongoing MBMSs includes service IDentifications (IDs) of the ongoing MBMSs. 6. The method of claim 5, wherein the first message and the second message are broadcasted within a coverage area of a cell. 7. The method of claim 5, wherein the first message and the second message are received via a Node B. 8. The method of claim 5, wherein the first message includes information about a data coding scheme applied to the second message. 9. A system for providing a Multimedia Broadcast/Multicast Service (MBMS) to a User Equipment (UE) in a radio access network in a mobile communication system, the system comprising: a transceiver for exchanging messages with the UE; anda controller for controlling the transceiver to transmit a first message including information about a scheduling period and an offset indicating a start point of the scheduling period to the UE, to repeatedly transmit a second message including information about ongoing MBMSs to the UE in every scheduling period, and to transmit data of at least one of the ongoing MBMSs to the UE via an MBMS Radio Bearer (RB) established for the at least one of the ongoing MBMSs,wherein the information about the ongoing MBMSs comprises service IDentifications (IDs) of the ongoing MBMSs. 10. The system of claim 9, wherein the transceiver transmits the first message and the second message to the UE in a type of broadcast within a coverage area of a cell. 11. The system of claim 9, wherein the transceiver transmits the first message and the second message to the UE via a Node B. 12. The system of claim 9, wherein the first message includes information about a data coding scheme applied to the second message. 13. A User Equipment (UE) for receiving a Multimedia Broadcast/Multicast Service (MBMS) in a mobile communication system, the UE comprising: a transceiver unit for exchanging messages with a radio access network; anda control unit for controlling the transceiver unit to receive a first message including information about a scheduling period and an offset indicating a start point of the scheduling period from the radio access network, to receive a second message including information about ongoing MBMSs from the radio access network, to apply an MBMS Radio Bearer (RB) establishment procedure for at least one of the ongoing MBMSs, and to receive data of the at least one of the ongoing MBMSs from the radio access network,wherein the second message is repeatedly transmitted by the radio access network in every the scheduling period, andwherein the information about the ongoing MBMSs comprises service IDentifications (IDs) of the ongoing MBMSs. 14. The UE of claim 13, wherein the first message and the second message are broadcasted within a coverage area of a cell. 15. The UE of claim 13, wherein the first message and the second message are received via a Node B. 16. The UE of claim 13, wherein the first message includes information about a data coding scheme applied to the second message.