A method in wireless communications networks including transmitting a
radio resource assignment (520) to a wireless communications device in
response to a request (510), transmitting radio resource assignment
time-out information to the wireless communications device, for example,
in the assignment message (520), wherein the radio resource assignment
time-out information specifies a duration during which the radio resource
assignment to the wireless communications device remains valid after the
wireless communications device discontinues communication on the radio
resource assigned.