Uplink transmission switching for intra-band noncontiguous uplink carrier aggregation

User equipment comprising:

• a first transmission path comprising a first mixer;
• a second transmission path comprising a second mixer;
• a local oscillator coupled to the first mixer and the second mixer;
• and
• processing circuitry coupled to the first transmission path, the second transmission path, and the local oscillator, the processing circuitry configured to
• receive an indication of a first carrier and a second carrier in a same frequency band,
• configure the local oscillator to generate a first frequency of the first carrier,
• cause the first transmission path to transmit a first signal using the first carrier,
• cause the second transmission path to transmit a second signal using the first carrier,
• cause the first transmission path to transmit a third signal using the first transmission path and the second carrier, and
• cause the second transmission path to transmit a fourth signal using the second carrier.

Tangible, non-transitory, computer-readable media, storing instructions that cause processing circuitry to:

• allocate a first carrier and a second carrier in a same frequency band to user equipment;
• schedule the user equipment to use the first carrier to transmit a first plurality of signals using a plurality of antennas;
• receive the first plurality of signals;
• schedule the user equipment to use the second carrier to transmit a second plurality of signals using the plurality of antennas;
• and
• receive the second plurality of signals.