Mobile device-assisted mobility enhancement is provided. In one example, a method comprises: determining, by a mobile device that was communicatively coupled to a defined network via a first distribution unit (DU) of DUs, that a connection between the mobile device and a base station device, via a first beam, in a network fails to satisfy a defined condition; selecting a second beam associated with a second DU and to which to connect; and transmitting, via the second beam, to the defined network, a radio link interruption message comprising re-assignment information to facilitate re-assignment of the mobile device to the second beam from the first beam, wherein the transmitting is performed via a mobile device identification message of a random access procedure and wherein the transmitting is performed based on the first DU being determined to be different from the second DU.