FLEXIBLE AND INTELLIGENT BASE STATION

摘要

PROBLEM TO BE SOLVED: To obtain a base station which can reduce the number of station sites required for a plurality of services and can improve the utilization factor of RF spectra. SOLUTION: The interface for subscribers from the air of the up-link of an ATM network to the network incorporates a radio system 321 which separates signaling and bearer information streams, an ATM protocol conversion system 331 which maps the separated streams in an ATM cell structure, and a network interface 310 which transmits ATM cell streams to the ATM network. The reverse interface constitution from the network to the air is provided with a network interface which receives ATM cells from the ATM network, an ATM processing system which converts the ATM cells into bearer information and signaling streams, and a radio system which transmits information to subscribers by using an appropriate narrow- or broad-band common are interface CAI.