In this paper , we first introduce the developing background > net architecture and protocol reference model of the wireless atm , especially the theory of aal2 . in order to represent the advantage of aal2 , we compare it with aal1 論文首先介紹了無(wú)線(xiàn)atm的發(fā)展背景、網(wǎng)絡(luò)結(jié)構(gòu)及其協(xié)議參考模型,著重對(duì)其中的二類(lèi)適配( aal2 )原理進(jìn)行了論述,并與一類(lèi)適配( aal1 )相比較,來(lái)說(shuō)明其優(yōu)勢(shì)。