日本三级片兽兽门

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                LTE

                LTE(Long Term Evolution,長期演進)是由3GPP(The 3rd Generation Partnership Project,第三代合作夥伴計①劃)組織制⊙定的UMTS(Universal Mobile Telecommunications System,通用移動通信系統)技術標準的長期演進,於2004年12月在3GPP多倫多會議上正『式立項並啟動。LTE系統引國語日本三級片入了OFDM(Orthogonal Frequency Division Multiplexing,正交①頻分復用)和MIMO(Multi-Input & Multi-Output,多輸入多輸出)等關鍵技↙術,顯著增加了頻譜效率和數據傳輸速率(20M帶寬2X2MIMO在64QAM情況下,理論下行最大傳輸速率為201Mbps,除去信令開銷後大概為150Mbps,但根ω 據實際組網以及終端能力限制,一般認為下行峰值速率
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