MOBILITY ROBUSTNESS OPTIMIZATION IN A CELLULAR NETWORK

摘要

The present invention relates to a method in a node eNB of a cellular network for supporting mobility to a method in a user equipment for supporting mobility to in the cellular network and to corresponding devices namely user equipment and node. According to one aspect a method for supporting mobility in a cellular network is provided. The method runs in a node eNB for the cellular network. According to the method the node receives from a user equipment an information of a radio link failure of a radio link between the user equipment and the cellular network and the node receives information related to a mobility e.g. expiry of T312 timer of the user equipment. Based on the received information the node adjusts at least one mobility parameter to increase robustness of mobility. The present invention improves robustness of mobility functions in a cellular network.