Abstract
The invention is a bandwidth searching and keeping method a multihop mobile wireless network, which firstly finds out the all linked common free time slots in a path and marks them as "usable" time slots, secondly finds out the marked "reserved" time slots where the TDMA data frames over the common free upstream and downstream time slots in the common free time slot of each link, and increases the path bandwidth by repeatedly increasing the linked bandwidth with the minimum existing bandwidth.