Recently controversy for commercial service technology of WLL(Wireless Local Loop) is being taken place violently with the joint of the companies which are willing to take part in serving new and stable service by the advent of Wireless Transmission Technology, and especially developing countries as well as china are greatly concerning about the technology, and severe competition among advanced countries is being risen in order to acquiring first over tens of billion's market in the early 21 century.
This WLL will be used in the area where has the restriction installing and maintaining owing to mountains, islands, or the area for bad quality of transmission where is apart from exchange. But Extremely High Speed Wideband Information Network should be realized in order to provide multimedia service into subscribers because narrow band has the limit of serving the kinds of services.
According to the fact, have to construct new type of subscriber network structure by adapting end point of AfM switch with Extremely High Speed Information Network wireless connection equipment, control equipment, and so on to accommodate subscribers in wireless network in case of applying wireless connection technology to Extremely High Speed Wideband Information Network.
And also, stability and mobility of services should be guaranteed to apply future multimedia services, and should adapt conversation technology, the concept of interconnection of wire and wireless should be utilized to diffuse broadly Extremely High Speed Wideband Information Network in an early stage and to construct economically wireless network The construction of Extremely High Speed Information Network to satisfy such conditions is hard at the past, but it is realized recently by brilliantly developed related technologies of optical transmission, wireless transmission technology, compressing technology, computer technology, etc.
In conclusion, it is necessary to induce wireless network focused on Wireless ATM technology to acquire competitive power of existing fundamental network, and wideband network which serves various kinds of services according to subscribers' demand will have to be driven. Consequently more systematic research will be needed in order to be constructed economical Extremely High Speed Wideband Wireless Subscriber Network through network construction and saving of maintenance cost as to wireless network as local telephone and multimedia communication installation is abruptly diffused.
