Method and Apparatus for Controlling Reception of Scptm Service Using Scptm-Rnti

1. A method performed by a user equipment (UE) in a wireless communication system, the method comprising: receiving, by the UE, a list of available single-cell point-to-multipoint (SCPTM) services broadcasted from a serving cell via a broadcast control channel (BCCH) or a multicast control channel (MCCH), while staying in a radio resource control (RRC) idle state, wherein the list of the available SCPTM services includes SCPTM- radio network temporary identities (RNTIs) of the available SCPTM services and service identities of the available SCPTM services, wherein the services correspond to a multicast broadcast service; determining, by the UE, an interested SCPTM service; determining, by the UE, that a service based on an identity of related to the interested SCPTM service is included in the list of available SCPTM services, wherein the service identity of the interested SCPTM service is obtained from a user service description (USD); storing, by the UE, only a SCPTM-RNTI of the interested SCPTM service included in the list of the available SCPTM services; monitoring, by the UE, a dedicated traffic channel (DTCH) a physical downlink control channel (PDCCH) based on the stored SCPTM- an RNTI of the interested service included in the list of the services; and receiving, by the UE, the interested SCPTM service via the DTCH.

2. The method of claim 1, further comprising: determining, by the UE, not to receive the interested SCPTM service; and releasing the SCPTM- RNTI of the interested SCPTM service.

3. The method of claim 2, further comprising stopping monitoring the DTCH corresponding to RNTI of the interested SCPTM service.

4. The method of claim 1, wherein the list of available SCPTM services further comprises at least any one of a temporary mobile group identity (TMGI), and a session identity.

5. A user equipment (UE) adapted to operate in a wireless communication system, the UE comprising: a memory storing instructions; a transceiver; and a processor operatively coupled connectable to the memory and the transceiver, wherein the instructions, based on being executed by the processor is configured for, cause the processor to perform operations comprising: receiving controlling the transceiver to receive a list of available single-cell point- to-multipoint (SCPTM) services broadcasted from a serving cell via a broadcast control channel (BCCH) or a multicast control channel (MCCH), while staying in a radio resource control (RRC) idle state, wherein the list of the available SCPTM services includes SCPTM-radio radio network temporary identities (RNTIs) of the available SCPTM services and service identities of the available SCPTM services, wherein the services correspond to a multicast broadcast service; determining an interested SCPTM service; determining, by the UE, that a service based on an identity of related to the interested SCPTM service is included in the list of available SCPTM services, wherein the service identity of the interested SCPTM service is obtained from a user service description (USD); storing, in the memory, only a SCPTM-RNTI of the interested SCPTM service included in the list of the available SCPTM services; monitoring, by the UE, a dedicated traffic channel (DTCH) a physical downlink control channel (PDCCH) based on the stored SCPTM-RNTI an RNTI of the interested service included in the list of services; and receiving controlling the transceiver to receive the interested SCPTM service via the DTCH.

6. The UE of claim 5, wherein the processor is operations further configured for comprise: determining, by the UE, not to receive the interested SCPTM service; releasing the SCPTM- RNTI of the interested SCPTM service; and stopping monitoring the DTCH corresponding to RNTI of the interested SCPTM service.