The network ( air ) interface between a mobile end system ( m - es ) and the cellular digital packet data ( cdpd ) - based wireless packet data service provider network 移動終端系統(tǒng)( m - es )和基于蜂窩數字分組數據( cdpd )之間的網絡(空中)接口,基于無線分組數據業(yè)務提供商網絡。
The medium access control ( mac ) layer protocol of the airlink interface between the mobile data base station ( mdbs ) and mobile end systems ( m - ess ) in cellular digital packet data ( cdpd ) is studied firstly . the access method of slotted non - persistent digital sense multiple access with collision detection ( dsma / cd ) is described mainly 本文首先研究了蜂窩數字分組數據( cdpd )空中接口中的介質接入控制層( mac )協(xié)議,詳細論述了基于時隙的非堅持的、帶沖突檢測的數字載波偵聽多址接入協(xié)議( dsma cd ) 。