Intelligent Auto Link Establishment Method and Transceiver Circuit Based on Polyphase Filter Bank for Broadband Wireless Transmission System

摘要

The present invention relates to a polyphase filter bank-based intelligent automatic link establishment method and a transceiver circuit for a broadband wireless transmission system. A polyphase filter bank-based intelligent automatic link setting method for a broadband wireless transmission system according to an embodiment of the present invention includes: a normal process step of transmitting and receiving data while selectively using a specific channel of the wideband polyphase filter bank; monitoring whether the response message transmitted from the receiving terminal is normally received by the transmitting terminal while performing the normal process step; If the sending terminal does not receive the reception response message for a preset period of time 1, the sending terminal silences transmission for a preset period of time 2 in order to switch from the normal process to the intelligent dynamic link establishment process; transmitting and receiving an emergency message including wideband channel change information through a narrowband L channel monitored using a narrowband digital filter bank structure when a preset time 2 has elapsed; and resuming data transmission/reception by moving the transmitting terminal and the receiving terminal to the changed wideband channel.