A method includes, by using a first data connection (160) between a network (100) and a terminal (102), communicating, from a network node (112) of the network (100) to the terminal (102), a downlink control message (452) indicative of a timing (501) of a reserved resource (258) reserved for communication between the network (100) and the terminal (102). The reserved resource (258) is dimensioned based on a predicted size of a data transmission (401-403, 405-407) predicted by the network (100). The method also includes performing a connection release (453) of the first data connection (160). The method also includes, in accordance with the timing (501) and using the reserved resource (258), performing a network access (454) to establish a second data connection (160) between the terminal (102) and the network (100).