Methods and arrangements for resource allocation

A network node configured to enable timing of scheduling of resources in a frequency division duplex system, wherein the network node is configured to communicate with a user equipment, the network node comprising:

• a processing unit adapted to determine that the user equipment is prohibited to receive an uplink grant in at least one subframe in the frequency division duplex system based on if the user equipment is configured with an Almost Blank Subframe (ABS) procedure,
• wherein the processor is adapted to determine that the user equipment is prohibited to receive the uplink grant in at least one subframe is based on if the user equipment is configured with a half-duplex operation, and
• wherein the network node comprises a predetermined uplink threshold value;
• determine whether the user equipment transmits more in uplink during a time period than the predetermined uplink threshold value;
• and
• a transmitter adapted to, in response to the user equipment being prohibited to receive the uplink grant in the at least one subframe and the user equipment transmits more in the uplink during the time period than the predetermined uplink threshold value, send an indication to the user equipment to apply a time division duplex configuration to the timing of scheduling of resources in the frequency division duplex system.