鎮ㄥソ锛屾杩庝締鍒扮董搴浕瀛愬競鍫寸恫(w菐ng)
鐧婚寗 | 鍏嶈不(f猫i)娉ㄥ唺
鍩虹珯鏀剁櫦(f膩)淇¤嚭鏄�GSM/GPRS/EDGE缍�(w菐ng)绲�(lu貌)AN(Radi.Acces.Network锛岀劇绶�鎺ュ叆缍�(w菐ng))缍�(w菐ng)鍏�銆傚畠鏄矤(f霉)璨�(z茅)涓�鍊嬪皬鍗�(q奴)(Cell)鐒＄窔淇¤櫉鏀剁櫦(f膩)鐨勮ō(sh猫)鍌欑殑闆嗗悎銆傞�欎簺鐒＄窔瑷�(sh猫)鍌欏寘鎷�澶╃窔銆乀RX(Transceiver锛屾敹鐧�(f膩)淇℃(j墨))銆佸悎璺�/鍒嗚矾鍣ㄧ瓑銆�
銆�銆�BTS閫氶亷Um鎺ュ彛(GSM/GPRS/EDGE缍�(w菐ng)绲�(lu貌)鐨勭┖涓帴鍙�)鑸嘙S(Mobile Station锛岀Щ鍕曡嚭)閫氫俊锛岄�氶亷A-bis鎺ュ彛鑸嘊SC閫氫俊銆�
銆�銆�绉诲嫊閫氫俊绯荤当(t菕ng)涓昏鐢辩Щ鍕曡嚭銆佸熀绔欏瓙绯荤当(t菕ng)鍜岀恫(w菐ng)绲�(lu貌)瀛愮郴绲�(t菕ng)绲勬垚?锛涱媶鑷肩灮l(f膩)鑷猴紙BTS锛夊拰鍩虹珯鎺у埗鍣紙Base Station Controller锛夋(g貌u)鎴愪簡鍩虹珯瀛愮郴绲�(t菕ng)銆備竴鍊嬪畬鏁寸殑BTS鍖呮嫭鐒＄窔鐧�(f膩)灏�/鎺ユ敹瑷�(sh猫)鍌�銆佸ぉ绶氬拰鎵�鏈夌劇绶氭帴鍙ｇ壒鏈夌殑淇¤櫉铏曠悊閮ㄥ垎銆侭TS鍙湅浣滀竴鍊嬬劇绶氳(di脿o)鍒惰В瑾�(di脿o)鍣紝璨�(f霉)璨�(z茅)绉诲嫊淇¤櫉鐨勬帴鏀跺拰鐧�(f膩)閫佽檿鐞�銆備竴鑸儏娉佷笅鍦ㄦ煇鍊嬪崁(q奴)鍩熷収(n猫i)锛屽鍊嬪瓙鍩虹珯鍜屾敹鐧�(f膩)鑷虹浉浜掔祫鎴愪竴鍊嬭渹绐╃媭鐨勭恫(w菐ng)绲�(lu貌)锛岄�氶亷鎺у埗鏀剁櫦(f膩)鑷鸿垏鏀剁櫦(f膩)鑷轰箣闁撶殑淇¤櫉鐩镐簰鍌抽�佸拰鎺ユ敹锛屼締閬�(d谩)鍒扮Щ鍕曢�氫俊淇¤櫉鐨勫偝閫併��
銆�銆�鎺ユ敹姗�(j墨)涓昏灏勯牷鎸囨(bi膩o)鍖呮嫭ReferenceSensitivityLevel锛孉djacentChannelSelectivity锛圓CS锛夛紝Blocking锛圛n-Band鍜孫ut-of-Band锛�锛孯eceiverInter-modulation銆傚叾涓付鍏�(n猫i)blocking鎸囨(bi膩o)鍜孉CS鍒嗘瀽椤炰技锛岃�冮噺鐨勯兘鏄伐浣滃付鍏�(n猫i)淇￠亾澶栧共鎿句俊铏熷皪鎺ユ敹姗�(j墨)褰遍熆鐨勫垎鏋�锛屽洜姝olcking鎸囨(bi膩o)鏀殜Out-of-band鎸囨(bi膩o)閫�(j矛n)琛屼簡璎涜В鍜岃鏄庛��
銆�銆�鎺ユ敹姗�(j墨)鐨勬渶灏忓彲鎺ユ敹闆诲钩锛堟帴鏀舵(j墨)闈堟晱搴︼級=-174dBm/Hz+10logBW+NF+Eb/N0
銆�銆�1.Eb/No鐢卞熀甯惰В瑾�(di脿o)鑳藉姏姹哄畾锛岃垏灏勯牷鍓嶇鐒￠棞(gu膩n)锛�
銆�銆�2.BW鐢辩劇绶氱郴绲�(t菕ng)鍗�(xi茅)璀版(bi膩o)婧�(zh菙n)瀹氱京锛�
銆�銆�3.-174dBm/Hz鍙婄附鐨勭啽鍣伈锛�
銆�銆�鎺ユ敹姗�(j墨)鐨勫叾浠栨寚妯�(bi膩o)閮芥槸鍩轰簬闈堟晱搴︽寚妯�(bi膩o)婊胯冻瑷�(sh猫)瑷堣姹傜偤鍓嶆彁銆傚洜姝よō(sh猫)瑷堥鍏堣婊胯冻闈堟晱搴︽寚妯�(bi膩o)瑕佹眰锛屽啀鍦ㄦ鍩虹(ch菙)涓婇��(j矛n)琛屽叾浠栨寚妯�(bi膩o)鐨勫垎瑙ｅ拰瑷�(sh猫)瑷�銆傝�屽皪浜庢帴鏀舵(j墨)闈堟晱搴︽寚妯�(bi膩o)鐨勫皠闋诲墠绔ō(sh猫)瑷堝氨鏄郴绲�(t菕ng)鍒嗚В涓嬩締NF鎸囨(bi膩o)鐨勮ō(sh猫)瑷�銆�
銆�銆�BTS鍖呮嫭鍩哄付鍠厓銆佽級闋诲柈鍏冨拰鎺у埗鍠厓涓夐儴鍒�銆�
銆�銆�1銆佸熀甯跺柈鍏冧富瑕佺敤浜庤┍闊冲拰鏁�(sh霉)鎿�(j霉)閫熺巼閬╅厤浠ュ強淇￠亾绶ㄧ⒓绛夈��
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銆�銆�3銆佹帶鍒跺柈鍏冨墖鐢ㄤ簬BTS鐨勬搷浣滆垏缍(h霉)銆�
銆�銆�BTS涓寘鎷劇绶氬偝杓告墍闇�瑕佺殑鍚勭ó纭欢鍜岃粺浠讹紝鍏烽珨鍖呮嫭锛�
銆�銆�1銆佺櫦(f膩)灏勬(j墨)鍜屾帴鏀舵(j墨)銆�
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