Determining downlink control format based on reliability

A method in a network node configured to communicate with a wireless device, WD, the method comprising:

• selecting a format of a Downlink Control Information, DCI, message from a set of at least two DCI message formats based on at least one of:
• a service type provided to the WD, a characteristic of a physical downlink control channel, and a measure of channel quality;
• and
• signaling a DCI message of the selected format to the WD.

A wireless device, WD, configured to communicate with a network node, the WD comprising processing circuitry configured to:

• determine a downlink control information, DCI, message format;
• and
• decode the DCI message based on the determined format, the format being based on at least one of:
• a service type provided to the WD, a characteristic of a physical downlink control channel, and a measure of channel quality.

A method implemented in a wireless device, WD, the method comprising:

• determining a downlink control information, DCI, message format;
• and
• decoding the DCI message based on the determined format, the format being based on at least one of:
• a service type provided to the WD, a characteristic of a physical downlink control channel, and a measure of channel quality.