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

A method of transmitting downlink control information by a base station (BS), the method comprising:

• transmitting, to a user equipment (UE), first downlink control information for a first physical downlink shared channel (PDSCH) allocated to a first cell;
• transmitting, to the UE, the first PDSCH via the first cell based on the first downlink control information;
• transmitting, to the UE, second downlink control information for a first physical uplink shared channel (PUSCH) allocated to the first cell;
• and
• receiving, from the UE, the first PUSCH via the first cell based on the second downlink control information,
• wherein the BS configures the UE with a downlink scheduling cell for the first cell and an uplink scheduling cell for the first cell,
• wherein the first downlink control information is transmitted through the downlink scheduling cell for the first cell among a plurality of cells for the UE, and
• wherein the second downlink control information is transmitted through the uplink scheduling cell configured separate from the downlink scheduling cell among the plurality of cells.

A user equipment (UE) for receiving downlink control information, the UE comprising:

• a transceiver;
• a processor;
• and
• a memory storing at least one program that, when executed, causes the processor to perform operations comprising:
• receiving, via the transceiver, first downlink control information for a first physical downlink shared channel (PDSCH) allocated to a first cell;
• receiving, via the transceiver, the first PDSCH via the first cell based on the first downlink control information;
• receiving, via the transceiver, second downlink control information for a first physical uplink shared channel (PUSCH) allocated to the first cell;
• and
• transmitting, via the transceiver, the first PUSCH via the first cell based on the second downlink control information,
• wherein the UE is configured with a downlink scheduling cell for the first cell and an uplink scheduling cell for the first cell,
• wherein the first downlink control information is received through the downlink scheduling cell for the first cell among a plurality of cells for the UE, and
• wherein the second downlink control information is received through the uplink scheduling cell configured separate from the downlink scheduling cell among the plurality of cells.

A base station (BS) for transmitting downlink control information, the BS comprising:

• a transceiver;
• a processor;
• and
• a memory storing at least one program that, when executed, causes the processor to perform operations comprising:
• transmitting, via the transceiver, first downlink control information for a first physical downlink shared channel (PDSCH) allocated to a first cell;
• transmitting, via the transceiver, the first PDSCH via the first cell based on the first downlink control information;
• transmitting, via the transceiver, second downlink control information for a first physical uplink shared channel (PUSCH) allocated to the first cell;
• and
• receiving, via the transceiver, the first PUSCH via the first cell based on the second downlink control information,
• wherein the BS configures the UE with a downlink scheduling cell for the first cell and an uplink scheduling cell for the first cell,
• wherein the first downlink control information is transmitted through the downlink scheduling cell for the first cell among a plurality of cells for the UE, and
• wherein the second downlink control information is transmitted through the uplink scheduling cell configured separate from the downlink scheduling cell among the plurality of cells.