Communication of Critical Data

Methods and apparatuses for supporting communication of critical data in a cellular system are disclosed. Upon determination of communication of critical data in a first cell a node of the first cell generates a signal including information of reservation of radio resources for said communication of critical data. The signal is communicated from the first cell to at least one second cell to reduce interference on said radio resources. A node of a second cell receives the signal and manages interference on said radio resources based on the signal. This includes prevention or limitation of use of said radio resources in the second cell when the second cell is not involved in communication of critical data.