Method and apparatus for controlling reception of SCPTM service using SCPTM-RNTI

Abstract

Provided is a method for receiving, by a terminal, a single-cell point-to-multipoint (SCPTM) service in a wireless communication system. The terminal receives a list of available SCPTM services from a serving cell, the list of available SCPTM services including SCPTM-RNTIs corresponding to the available SCPTM services. The terminal may store a SCPTM-RNTI corresponding to an interested SCPTM service among the received list of available SCPTM services and may receive the interested SCPTM service using the stored SCPTM-RNTI corresponding to the interested SCPTM service. Further, provided is a method for interrupting, by a terminal, reception of a SCPTM service in a wireless communication system. The terminal may determine whether or not to interrupt the reception of the SCPTM service from a serving cell, and when determining to interrupt the reception of the SCPTM service, may release the SCPTM-RNTI corresponding to the SCPTM service.

What is claimed is: 
     
       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: 
 receivingcontrolling 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 
 receivingcontrolling 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.