Method and device for transmitting or receiving multicasting data channel for BL/CE user terminal
The present disclosure proposes a method of supporting Single Cell Point-to-Multi-point (SC-PTM) for a Bandwidth reduced Low complexity/Coverage Enhancement (BL/CE) terminal or an NB-IoT terminal, which are for a Machine Type Communication (MTC) application defined in a 3GPP LTE/LTE-A system. Particularly, the present disclosure proposes a method of allocating a resource of a PDSCH for transmitting an SC-MTCH that is multicasting data information for a single cell group terminal.
1. A method of receiving a multicasting data channel (SC-MTCH) by a Bandwidth reduced Low complexity/Coverage Enhancement (BL/CE) terminal, the method comprising:
receiving configuration information of a machine type communication physical downlink control channel (MPDCCH) search space from a base station, wherein the MPDCCH search space is configured to receive scheduling control information for the multicasting data channel, and configured separately from search spaces for paging and a random access procedure and a search space for data transmission and reception;
receiving the scheduling control information for the multicasting data channel through the MPDCCH search space configured based on the configuration information; and
receiving the multicasting data channel based on the scheduling control information,
wherein the configuration information includes a maximum number of repetition transmission times of MPDCCH and a start subframe configuration parameter, which are for configuring the MPDCCH search space;
wherein the configuration information is received for each multicasting group through the multicasting control channel (SC-MCCH).
2. The method of claim 1 , wherein the MPDCCH search space configured to receive the scheduling control information for the multicasting data channel is a search space configured separately from a search space defined to perform monitoring only when the BL/CE terminal is configured with CEModeA, a common search space for the paging, a common search space for the random access procedure, and a UE-specific search space for transmitting or receiving the UE-specific data.
3. A method of transmitting a multicasting data channel for a Bandwidth reduced Low complexity/Coverage Enhancement (BL/CE) terminal, the method comprising:
configuring a machine type communication physical downlink control channel (MPDCCH) search space for transmitting scheduling control information for the multicasting data channel separately from search spaces for paging and a random access procedure and a search space for the data transmission and reception;
transmitting the scheduling control information for the multicasting data channel through the configured MPDCCH search space; and
transmitting the multicasting data channel based on the scheduling control information,
wherein the configuration information for the MPDCCH search space includes a maximum number of repetition transmission times of MPDCCH and a start subframe configuration parameter, which are for configuring the MPDCCH search space;
wherein configuration information of the MPDCCH search space is transmitted for each multicasting group through the multicasting control channel.
4. The method of claim 3 , wherein the MPDCCH search space configured to receive the scheduling control information for the multicasting data channel is a search space configured separately from a search space defined to perform monitoring only when the BL/CE terminal is configured with CEModeA, a common search space for the paging, a common search space for the random access procedure, and a UE-specific search space for transmitting or receiving the UE-specific data.
5. A Bandwidth reduced Low complexity/Coverage Enhancement (BL/CE) terminal configured to receive a multicasting data channel, the BL/CE terminal comprising:
a reception unit configured to receive configuration information of a machine type communication physical downlink control channel (MPDCCH) search space from a base station wherein the MPDCCH search space is configured to receive scheduling control information for the multicasting data channel and configured separately from search spaces for paging and a random access procedure and a search space for data transmission and reception: and
a control unit configured to check the scheduling control information for the multicasting data channel through the MPDCCH search space configured based on the configuration information, and control reception of the multicasting data channel based on the scheduling control information,
wherein the configuration information includes a maximum number of repetition transmission times of MPDCCH and a start subframe configuration parameter, which are for configuring the MPDCCH search space;
wherein the configuration information is received for each multicasting group through the multicasting control channel.
6. The BL/CE terminal of claim 5 , wherein the MPDCCH search space configured to receive the scheduling control information for the multicasting data channel is a search space configured separately from a search space defined to perform monitoring only when the BL/CE terminal is configured with CEModeA, a common search space for the paging, a common search space for the random access procedure, and a UE-specific search space for transmitting or receiving the UE-specific data.
7. A base station configured to transmit a multicasting data channel for a Bandwidth reduced Low complexity/Coverage Enhancement (BL/CE) terminal, the base station comprising:
a control unit configured to configure a machine type communication physical downlink control channel (MPDCCH) search space for transmitting scheduling control information for the multicasting data channel, separately from search spaces for paging and a random access procedure and a search space for data transmission and reception, and control transmission of the scheduling control information for the multicasting data channel through the MPDCCH search space; and
a transmission unit configured to transmit the multicasting data channel based on the scheduling control information,
wherein the configuration information relating to the MPDCCH search space includes a maximum number of repetition transmission times of MPDCCH and a start subframe configuration parameter, which are for configuring the MPDCCH search space;
wherein configuration information relating to the MPDCCH search space is transmitted for each multicasting group through the multicasting control channel.
8. The base station of claim 7 , wherein the MPDCCH search space configured to receive the scheduling control information for the multicasting data channel is a search space configured separately from a search space defined to perform monitoring only when the BL/CE terminal is configured with CEModeA, a common search space for the paging, a common search space for the random access procedure, and a UE-specific search space for transmitting or receiving the UE-specific data.