A. 2G 3G 4G鏁版嵁緗戠粶錛屽摢涓鐪佹祦閲忎竴鐐癸紵
浣犳墦寮涓涓涓滆タ錛岀敤鐨勬祦閲忔槸涓鏍風殑錛岃窡2g銆3g銆4g娌℃湁鍏崇郴錛涘氨鎯充綘鎵撳紑鍥劇墖鏄3M錛岀敤閭ｄ釜鎵撳紑閮芥槸4m錛屾湁鏃跺2g鎵撲笉寮闇瑕佸埛鏂板彲鑳芥洿璐規祦閲忥紝涓嶈繃緗戦熷揩鐨勬椂鍊欏伔璺戞祦閲忚窇鐨勫揩錛屾瘮濡備綘鎵撳紑緗戦〉鍙戠幇鐐歸敊浜嗭紝榪欐槸榪斿洖瀵4g宸茬粡娌℃湁鐢錛屼絾2g榪樻病鎵撳紑榪斿洖鍙浠ヨ妭鐪佹祦閲忥紝浣嗚繖縐嶄簨鎯呭緢灝戝彂鐢熴傚彟澶栫渷嫻侀噺鍙浠ュ湪嫻忚堝櫒閲岄潰璁劇疆鍏抽棴鍥劇墖鍔熻兘錛屽彧鎵撳紑鏂囧瓧錛屽氨鑺傜渷浜嗐
B. 鍚璇3G姣4G鐪佹祦閲忥紝榪欐槸鐪熺殑鍚楋紵
鏄鐨勶紝3g鎱㈡墍浠ユ祦閲忓氨鐢ㄧ殑鐪侊紝4g蹇錛屾祦閲忚垂鐨勭壒鍒蹇