NETWORK NODES, METHODS PERFORMED THEREIN, COMPUTER PROGRAMS AND A COMPUTER READABLE STORAGE MEDIUM

Embodiments herein relate to a method performed in a first network node for handling one or more signalling procedures of a wireless device in a wireless communication network. The first network node comprises one or more processing modules for handling signalling procedures. The first network node: receives a first message from a second network node indicating an initiation of a signalling procedure for the wireless device; selects a processing module for handling the signalling procedure; retrieves context of the wireless device; stores the retrieved context on the selected processing module; assigns a TRID to the signalling procedure, pointing to the selected processing module, which TRID being valid for an interval; and transmits a second message to the second network node and/or another network node, which second message is associated with the signalling procedure and comprises the assigned TRID.