User node, network node and methods for allocating and using resources for control signals

A network node for a wireless communication system comprising:

• a processing unit configured to
• generate first control information identifying a subset of resource elements among a full set of resource elements;
• generate second control information enabling determination of a currently used resource element block among the subset of resource elements;
• a transceiver configured to transmit the first control information and the second control information to a first transceiver modem of a user node;
• the processing unit being configured to allocate at least one signal in the currently used resource element block among the subset of resource elements;
• and
• the transceiver being configured to transmit the at least one signal in the subset of resource elements to a secondary transceiver modem of the user node while the first transceiver modem is in a reduced power state.

A method comprising:

• receiving, by a first transceiver modem, first control information identifying a subset of resource elements among a full set of the resource elements;
• receive, by the first transceiver modem, second control information enabling determination of a currently used resource element block among the subset of resource elements;
• sending, by the first transceiver modem the first control information and the second control information to a secondary transceiver modem;
• entering into a reduced power state with the first transceiver modem;
• receiving, by the secondary transceiver modem, based on the first control information and the second control information, at least one signal in the subset of the resource element blocks while the first transceiver modem is in the reduced power state;
• determining, by the secondary transceiver modem, a control decision based on the at least one signal;
• and
• outputting, by the secondary transceiver modem, at least one command associated with the control decision.