Method and user equipment for receiving downlink channel, and method and base station for transmitting downlink channel

A method of transmitting a downlink signal to a user equipment at a base station, the method comprising:

• transmitting first transmission mode (TM) configuration information for a first type transmission time interval (TTI);
• transmitting a first physical downlink control channel (PDCCH) for a first physical downlink shared channel (PDSCH);
• transmitting the first PDSCH in a first TTI based on the first PDCCH and the first TM configuration information;
• transmitting a second PDCCH for a second PDSCH;
• and
• transmitting the second PDSCH in a second TTI based on the second PDCCH and the first TM configuration information,
• wherein each of the first TTI and the second TTI is the first type TTI, the first type TTI consisting of a lower number of orthogonal frequency division multiplexing (OFDM) symbols than a number of OFDM symbols included in a second type TTI,
• wherein the first TTI is configured in a Multimedia Broadcast multicast service Single Frequency Network (MBSFN), and the second TTI is configured in a non-MBSFN,
• wherein the first TM configuration information includes information on a first TM configured for the MBSFN and second information on a second TM configured for the non-MBSFN, and
• wherein the first PDSCH in the first TTI is transmitted based on the first TM, and the second PDSCH in the second TTI is transmitted based on the second TM.

A user equipment for receiving a downlink channel, comprising:

• a transceiver;
• and
• a processor configured to control the transceiver, the processor configured to:
• control the transceiver to receive first transmission mode (TM) configuration information for a first type transmission time interval (TTI);
• control the transceiver to receive a first physical downlink control channel (PDCCH) for a first physical downlink shared channel (PDSCH);
• control the transceiver to receive the first PDSCH in a first TTI based on the first PDCCH and the first TM configuration information;
• control the transceiver to receive a second PDCCH for a second PDSCH;
• and
• control the transceiver to receive the second PDSCH in a second TTI based on the second PDCCH and the first TM configuration information,
• wherein each of the first TTI and the second TTI is the first type TTI, the first type TTI consisting of a lower number of orthogonal frequency division multiplexing (OFDM) symbols than a number of OFDM symbols included in a second type TTI,
• wherein the first TTI is configured in a Multimedia Broadcast multicast service Single Frequency Network (MBSFN), and the second TTI is configured in a non-MBSFN,
• wherein the first TM configuration information includes information on a first TM configured for the MBSFN and second information on a second TM configured for the non-MBSFN, and
• wherein the first PDSCH in the first TTI is received based on the first TM, and the second PDSCH in the second TTI is received based on the second TM.

A base station for transmitting a downlink signal to a user equipment, comprising:

• a transceiver;
• and,
• a processor configured to control the transceiver, the processor configured to:
• control the transceiver to transmit first transmission mode (TM) configuration information for a first type transmission time interval (TTI);
• control the transceiver to transmit a first physical downlink control channel (PDCCH) for a first physical downlink shared channel (PDSCH);
• control the transceiver to transmit the first PDSCH in a first TTI based on the first PDCCH and the first TM configuration information;
• and
• control the transceiver to transmit a second PDCCH for a second PDSCH;
• and
• control the transceiver to transmit the second PDSCH in a second TTI based on the second PDCCH and the first TM configuration information,
• wherein each of the first TTI and the second TTI is the first type TTI, the first type TTI consisting of a lower number of orthogonal frequency division multiplexing (OFDM) symbols than a number of OFDM symbols included in a second type TTI,
• wherein the first TTI is configured in a Multimedia Broadcast multicast service Single Frequency Network (MBSFN), and the second TTI is configured in a non-MBSFN,
• wherein the first TM configuration information includes information on a first TM configured for the MBSFN and second information on a second TM configured for the non-MBSFN, and
• wherein the first PDSCH in the first TTI is transmitted based on the first TM, and the second PDSCH in the second TTI is transmitted based on the second TM.