什么是RNS
RNS - 即無(wú)線網(wǎng)絡(luò)子系統(tǒng)
無(wú)線網(wǎng)絡(luò)子系統(tǒng)(RNS - Radio Network Subsystem)包括在接入網(wǎng)中控制無(wú)線電資源的無(wú)線網(wǎng)絡(luò)控制器(RNC)。RNC具有宏分集合并能力,可提供軟切換能力。每個(gè)RNC可覆蓋多個(gè)NodeB。NodeB實(shí)質(zhì)上是一種與基站收發(fā)信臺(tái)等同的邏輯實(shí)體,它受RNC控制,提供移動(dòng)設(shè)備(UE)和無(wú)線網(wǎng)絡(luò)子系統(tǒng)(RNS)之間的物理無(wú)線鏈路連接。同樣,基站系統(tǒng)(BSS)由基站控制器構(gòu)成,基站控制器控制一個(gè)或多個(gè)基站收發(fā)信臺(tái),與NodeB不同,每個(gè)BSS對(duì)應(yīng)于一個(gè)蜂窩。IuCS與IuPS接口將接入網(wǎng)中的所有移動(dòng)設(shè)備分別接入核心網(wǎng)中的電路交換域和分組交換域。
UMTS是通用移動(dòng)通信系統(tǒng),它是國(guó)際標(biāo)準(zhǔn)化組織3GPP制定的全球3G標(biāo)準(zhǔn)之一。它一般由用戶終端,無(wú)線接入網(wǎng),核心網(wǎng)構(gòu)成。而UTRAN是無(wú)線接入部分一種重要的接入方式。UTRAN是一組連接到核心網(wǎng)的無(wú)線接入
子系統(tǒng)(RNS)組成,它們之間的接口是Iu接口。
- RNS(6798)
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