Base station and user terminal

A user equipment for which multicast service is provided by SC-PTM (Single Cell Point to Multi-point) transmission, the user equipment comprising:

• a receiver configured to receive SC-PTM configuration information related to a configuration of the SC-PTM transmission via a SC-PTM control channel which is a logical channel different from a MCCH (Multicast Control Channel), and further configured to receive multicast data via a traffic channel for the SC-PTM transmission, wherein
• each of the SC-PTM control channel and the traffic channel is mapped on a DL-SCH (Downlink Shared Channel),
• the receiver is configured to receive a system information block related to the SC-PTM control channel via a BCCH (Broadcast Control Channel),
• the receiver is further configured to receive first resource allocation information for receiving the SC-PTM configuration information via a PDCCH (Physical Downlink Control Channel), wherein a predetermined RNTI (Radio Network Temporary Identifier) for the SC-PTM control channel is applied to reception of the first resource allocation information, and
• the receiver is further configured to receive second resource allocation information for receiving multicast data by the SC-PTM transmission via the PDCCH, wherein a G-RNTI (Group-RNTI) different from the predetermined RNTI is applied to reception of the second resource allocation information;
• and
• a controller configured to apply DRX (Discontinuous Reception) to reception of the traffic channel in the SC-PTM transmission, wherein
• the DRX applied to reception of the traffic channel in the SC-PTM transmission is an operation independent from a DRX applied to a unicast reception.

A method performed at a user equipment for which multicast service is provided by SC-PTM (Single Cell Point to Multi-point) transmission, the method comprising:

• receiving a system information block related to a SC-PTM control channel via a BCCH (Broadcast Control Channel);
• receiving first resource allocation information for receiving SC-PTM configuration information via a PDCCH (Physical Downlink Control Channel), wherein a predetermined RNTI (Radio Network Temporary Identifier) for the SC-PTM control channel is applied to reception of the first resource allocation information;
• receiving SC-PTM configuration information related to a configuration of the SC-PTM transmission via the SC-PTM control channel which is a logical channel different from a MCCH (Multicast Control Channel);
• receiving second resource allocation information for receiving multicast data by the SC-PTM transmission via a PDCCH, wherein a G-RNTI (Group-RNTI) different from the predetermined RNTI is applied to reception of the second resource allocation information;
• receiving the multicast data via a traffic channel for the SC-PTM transmission, wherein each of the SC-PTM control channel and the traffic channel is mapped on a DL-SCH (Downlink Shared Channel);
• and
• applying DRX (Discontinuous Reception) to reception of the traffic channel in the SC-PTM transmission, wherein
• the DRX applied to reception of the traffic channel in the SC-PTM transmission is an operation independent from a DRX applied to a unicast reception.