Eimta in enhanced carrier aggregation

A user equipment (UE) for wireless communication, comprising:

• a memory;
• and
• at least one processor coupled to the memory and configured to:
• receive downlink control information (DCI);
• determining a first portion of the DCI corresponding to a first time division duplex (TDD) uplink-downlink configuration for a first group of component carriers (CCs) of a plurality of carrier groups and a second portion of the DCI corresponding to a second TDD uplink-downlink configuration for a second group of CCs of the plurality of carrier groups, wherein a bit length of the first portion is different from a bit length of the second portion;
• and
• determine the first TDD uplink-downlink configuration based on the first portion and the second TDD uplink-downlink configuration based on the second portion, each of the first and second uplink-downlink configurations corresponding to an available TDD uplink-downlink configuration for carriers in a respective group of CCs.

A base station for wireless communication, comprising:

• a memory;
• and
• at least one processor coupled to the memory and configured to:
• configure downlink control information (DCI) to include a first portion of the DCI corresponding to a first time division duplex (TDD) uplink-downlink configuration for a first group of component carriers (CCs) of a plurality of carrier groups and a second portion corresponding to a second TDD uplink-downlink configuration for a second group of CCs of the plurality of carrier groups, wherein a bit length of the first portion is different from a bit length of the second portion, each of the first and second uplink-downlink configurations corresponding to an available TDD uplink-downlink configuration for carriers in a respective group of CCs;
• and
• transmit the DCI to a user equipment (UE).