personal digital cellular pdc; 個人數(shù)據(jù)助理; 個人數(shù)位手機(通信技術(shù)); 個人數(shù)字蜂巢式通訊; 個人數(shù)字蜂窩系統(tǒng); 個人資訊機
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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(shù)字分組數(shù)據(jù)( cdpd )之間的網(wǎng)絡(luò)(空中)接口,基于無線分組數(shù)據(jù)業(yè)務(wù)提供商網(wǎng)絡(luò)。
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(shù)字分組數(shù)據(jù)( cdpd )空中接口中的介質(zhì)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(shù)字載波偵聽多址接入?yún)f(xié)議( dsma cd ) 。