Efficient CORESET configuration

A wireless device configured to receive signals from a network node, the wireless device comprising:

• receiver circuitry comprising at least one receiver;
• and
• processing circuitry, wherein the processing circuitry is configured to:
• receive, in accordance with a first search space and/or first control resource set (CORESET) defining first time and/or frequency resources of a downlink control channel, a first signal comprising:
• a second search space and/or second CORESET defining second time and/or frequency resources of the downlink control channel that are different from the first time and/or frequency resources;
• and
• a configuration indication indicating a selection made by the network node, the selection including either the first search space and/or first CORESET or the second search space and/or second CORESET;
• and
• configure the at least one receiver to receive one or more second signals via the downlink control channel according to the selection made by the network node.

A method performed by a network node for signal transmission to a wireless device, the method comprising:

• determining a first search space and/or first control resource set (CORESET) defining first time and/or frequency resources of a downlink control channel;
• selecting between the first search space and/or first CORESET and a second search space and/or second CORESET to identify a receiver configuration for the wireless device, the second search space and/or second CORESET defining second time and/or frequency resources of the downlink control channel that are different from the first time and/or frequency resources;
• transmitting a first signal to the wireless device according to the first search space and/or first CORESET, the first signal comprising the second search space and/or second CORESET and a configuration indication indicating the receiver configuration selected by the network node for the wireless device;
• and
• transmitting one or more second signals to the wireless device in accordance with the receiver configuration identified for the wireless device.

A network node configured to transmit signals to a wireless device, the network node comprising:

• processing circuitry configured to:
• determine a first search space and/or first control resource set (CORESET) defining first time and/or frequency resources of a downlink control channel;
• and
• select between the first search space and/or first CORESET and a second search space and/or second CORESET to identify a receiver configuration for the wireless device, the second search space and/or second CORESET defining second time and/or frequency resources of the downlink control channel that are different from the first time and/or frequency resources;
• transmitter circuitry configured to transmit:
• a first signal to the wireless device according to the first search space and/or first control resource set CORESET, the first signal comprising the second search space and/or second CORESET and a configuration indication indicating the receiver configuration selected by the network node for the wireless device;
• and
• one or more second signals to the wireless device in accordance with the receiver configuration identified for the wireless device.