Method and apparatus for transmitting downlink control information

An apparatus, comprising:

• a receiving circuitry;
• a transmitting circuitry;
• and
• a processor coupled to the receiving circuitry and the transmitting circuitry configured to cause the apparatus to:
• receive a first downlink control information (DCI) format scheduling a first data channel of a plurality of data channels on a first carrier of a plurality of carriers, wherein the first DCI format includes common scheduling information for all of the plurality of carriers;
• receive the first data channel on the first carrier based on the first DCI format;
• and
• receive a second data channel of the plurality of data channels on a second carrier of the plurality of carriers based on the first data channel.

An apparatus, comprising:

• a receiving circuitry;
• a transmitting circuitry;
• and
• a processor coupled to the receiving circuitry and the transmitting circuitry configured to cause the apparatus to:
• receive a first downlink control information (DCI) format for decoding a second DCI format, wherein the second DCI format schedules a plurality of data channels on a plurality of carriers;
• decode the second DCI format based on the first DCI format;
• in a case of the plurality of data channels being physical downlink shared channels (PDSCHs), receive the plurality of data channels on the plurality of carriers;
• and
• in a case of the plurality of data channels being physical uplink shared channels (PUSCHs), transmit the plurality of data channels on the plurality of carriers.

An apparatus, comprising:

• a receiving circuitry;
• a transmitting circuitry;
• and
• a processor coupled to the receiving circuitry and the transmitting circuitry configured to cause the apparatus to:
• transmit, to a user equipment (UE), a first downlink control information (DCI) format scheduling a first data channel of a plurality of data channels on a first carrier of a plurality of carriers, wherein the first DCI format includes common scheduling information for all of the plurality of carriers;
• transmit, to the UE, the first data channel on the first carrier based on the first DCI format;
• and
• transmit, to the UE, a second data channel of the plurality of data channels on a second carrier of the plurality of carriers based on the first data channel.