Abstract:

The nature of scanning algorithm for remote electrical tilting antenna control system based on antenna interface standard group (AISG) protocol is investigated and determined, it is made up for the inadequate AISG protocol. The algorithm is optimized when considering the influence in which the antenna device number is exerted on the scanning time during the process of increasing mask bits. Meanwhile, a tree collision splitting algorithm based on the B1 maskbit increasing is proposed. In accordance with the characteristics of the scanning algorithm for AISG protocol, this algorithm reasonably arranges the numbers and steps of increasing mask bits, and solves contradictions between idle cycle quantities and collision cycle quantities, so that the effective identification of antenna line devices is achieved, and the scanning time is reduced as well.

Key words: antenna interface standards group protocol, collision resolution, scanning efficiency