Downlink assignment with different processing times

A method for use in a network node of a frequency division duplex, FDD, wireless communication network, the method comprising,

• scheduling, for a wireless device operating in the FDD wireless communication network, a first downlink transmission with a first transmission duration on a first frequency carrier, the scheduling comprising a first downlink assignment index, DAI, the first DAI comprising a first total DAI and a first accumulative DAI;
• scheduling for the wireless device, a second downlink transmission with a second transmission duration on a second frequency carrier, the scheduling comprising a second DAI, the second DAI comprising a second total DAI and a second accumulative DAI, and wherein the network node expects hybrid automatic repeat request, HARQ, feedback for the first downlink transmission and the second downlink transmission in a single uplink transmission on a third frequency carrier, and the uplink transmission has a third transmission duration different than at least one of the first and second transmission duration;
• and
• transmitting the scheduling for the first and second downlink transmission to the wireless device.

A network node configured to operate in a frequency division duplex, FDD, wireless communication network, the network node comprising processing circuitry configured to,

• schedule, for a wireless device operating in the FDD wireless communication network, a first downlink transmission with a first transmission processing time on a first frequency carrier, the scheduling comprising a first downlink assignment index, DAI, the first DAI comprising a first total DAI and a first accumulative DAI;
• schedule, for the wireless device, a second downlink transmission with a second transmission processing time different than the first processing time on a second frequency carrier, the scheduling comprising a second DAI, the second DAI comprising a second total DAI and a second accumulative DAI, wherein the first transmission processing time and the second transmission processing time relate to a respective hybrid automatic repeat request, HARQ, feedback transmission timing corresponding to the first downlink transmission and the second downlink transmission, and wherein the network node expects HARQ feedback for the first downlink transmission and the second downlink transmission in a single uplink transmission;
• and
• transmit the scheduling for the first and second downlink transmission to the wireless device.

A method for use in a user equipment of a frequency division duplex, FDD, wireless communication network, the method comprising,

• receiving scheduling in the FDD wireless communication network for a first downlink transmission with a first transmission processing time on a first frequency carrier, the scheduling comprising a first downlink assignment index, DAI, the first DAI comprising a first total DAI and a first accumulative DAI;
• receiving scheduling in the FDD wireless communication network for a second downlink transmission with a second transmission processing time different than the first processing time on a second frequency carrier, wherein the first transmission processing time and the second transmission processing time relate to a respective hybrid automatic repeat request, HARQ, feedback transmission timing for the first downlink transmission and the second downlink transmission, the scheduling comprising a second DAI, the second DAI comprising a second total DAI and a second accumulative DAI;
• receiving the first and second downlink transmissions;
• and
• transmitting HARQ feedback for the first downlink transmission and the second downlink transmission in a single uplink transmission.

A user equipment configured to operate in a frequency division duplex, FDD, wireless communication network, the user equipment comprising processing circuitry configured to,

• receive scheduling in the FDD wireless communication network for a first downlink transmission with a first transmission processing time on a first frequency carrier, the scheduling comprising a first downlink assignment index, DAI, the first DAI comprising a first total DAI and a first accumulative DAI;
• receive scheduling in the FDD wireless communication network for a second downlink transmission with a second transmission processing time different than the first processing time on a second frequency carrier, wherein the first transmission processing time and the second transmission processing time relate to a respective hybrid automatic repeat request, HARQ, feedback transmission timing corresponding to the first downlink transmission and the second downlink transmission, and the scheduling comprising a second DAI, the second DAI comprising a second total DAI and a second accumulative DAI;
• receive the first and second downlink transmissions;
• and
• transmit HARQ feedback for the first downlink transmission and the second downlink transmission in a single uplink transmission.

A user equipment configured to operate in a frequency division duplex, FDD, wireless communication network, the user equipment comprising processing circuitry configured to,

• receive scheduling in the FDD wireless communication network for a first downlink transmission with a first transmission duration on a first frequency carrier, the scheduling comprising a first downlink assignment index, DAI, the first DAI comprising a first total DAI and a first accumulative DAI;
• receive scheduling in the FDD wireless communication network for a second downlink transmission with a second transmission duration on a second frequency carrier, the scheduling comprising a second DAI, the second DAI comprising a second total DAI and a second accumulative DAI;
• receive the first and second downlink transmissions;
• and
• transmit hybrid automatic repeat request, HARQ, feedback for the first downlink transmission and the second downlink transmission in a single uplink transmission, wherein the uplink transmission has a third transmission duration different than at least one of the first and second transmission durations.