This disclosure pertains to a method in a Multi-Standard Radio (MSR) network node, a MSR network node (100), a method in a network node and to a network node (102) which facilitates handling of MSR network node information in a wireless communications system/network. More particularly there is provided mechanisms for network operation of a wireless communications system/network in which there is one or more MSR BSs. According to the disclosure the MSR network node (100) is being configured to handle multiple Radio Access Technologies (RATS) and to generate a message comprising an MSR identifier identifying the MSR network node and/or MSR network node configuration data, and to send the generated message to the at least another network node for use in network operation. The generated message may be generated and sent upon detecting an initiating event.