Downlink assignments for downlink control channels

An apparatus comprising:

• a processor that:
• monitors a first downlink control channel candidate associated with scheduling a first downlink data channel in a first control resource set;
• and
• monitors a second downlink control channel candidate associated with scheduling a second downlink data channel in a second control resource set, wherein the first control resource set comprises a first set of orthogonal frequency-division multiplexing symbols, and the second control resource set comprises a second set of orthogonal frequency-division multiplexing symbols, wherein:
• the first downlink data channel has a corresponding first transmission configuration index state and the second downlink data channel has a corresponding second transmission configuration index state;
• and
• the first transmission configuration index state and the second transmission configuration index state provide information comprising quasi-co-location relationships between downlink reference signals in one reference signal set and demodulation reference signal ports of a corresponding downlink data channel;
• and
• a receiver that receives at least one downlink assignment associated with the first downlink control channel candidate or the second downlink control channel candidate;
• wherein, in response to the at least one downlink assignment comprising a first downlink assignment associated with the first downlink control channel candidate, the processor:
• determines a first downlink data channel allocation comprising resources allocated to a first downlink data channel based on the first downlink assignment;
• determines a first demodulation reference signal symbol location associated with the first downlink data channel based at least in part on the first downlink assignment, the first set of orthogonal frequency-division multiplexing symbols, and the second set of orthogonal frequency-division multiplexing symbols;
• and
• decodes the first downlink data channel;
• and
• wherein, in response to the at least one downlink assignment comprising a second downlink assignment associated with the second downlink control channel candidate, the processor:
• determines a second downlink data channel allocation comprising resources allocated to a second downlink data channel based on the second downlink assignment;
• determines a second demodulation reference signal symbol location associated with the second downlink data channel based at least in part on the second downlink assignment, the first set of orthogonal frequency-division multiplexing symbols, and the second set of orthogonal frequency-division multiplexing symbols;
• and
• decodes the second downlink data channel.