锘??xml version="1.0" encoding="utf-8" standalone="yes"?> WCDMA鍏ㄥ悕鏄疻ideband CDMA錛屼腑鏂囪瘧鍚嶄負(fù)鈥滃甯﹀垎鐮佸宸ュ瓨鍙栤濓紝瀹冨彲鏀寔384Kbps鍒?Mbps涓嶇瓑鐨勬暟鎹紶杈撻熺巼錛屽湪楂橀熺Щ 鍔ㄧ殑鐘舵侊紝鍙彁渚?84Kbps鐨勪紶杈撻熺巼錛屽湪浣庨熸垨鏄鍐呯幆澧冧笅錛屽垯鍙彁渚涢珮杈?Mbps鐨勪紶杈撻熺巼銆傝孏SM緋葷粺鐩墠鍙兘浼犻?.6Kbps錛屽浐瀹氱嚎璺疢odem涔熷彧鏄?6Kbps鐨勯熺巼錛岀敱姝ゅ彲瑙乄CDMA鏄棤綰跨殑瀹藉甫閫氳銆? 姝ゅ錛屽湪鍚屼竴浜涗紶杈撻氶亾涓紝瀹冭繕鍙互鎻愪緵鐢?shù)璧\浜ゆ崲鍜屽垎鍖呬氦鎹㈢殑鏈嶅姟錛屽洜姝わ紝娑堣垂鑰呭彲浠ュ悓鏃跺埄鐢ㄤ氦鎹㈡柟寮忔帴鍚數(shù)璇濓紝鐒跺悗浠ュ垎鍖呬氦鎹㈡柟寮忚闂洜鐗圭綉錛岃繖鏍風(fēng)殑鎶鏈彲浠ユ彁楂樼Щ 鍔ㄧ數(shù)璇濈殑浣跨敤鏁堢巼錛屼嬌寰楁垜浠彲浠ヨ秴榪囪秺鍦ㄥ悓涓鏃墮棿鍙兘鍋氳闊蟲(chóng)垨鏁版嵁浼犺緭鐨勬湇鍔$殑闄愬埗銆? 鍏舵敮鎸佽呬富瑕佹槸浠?GSM緋葷粺涓轟富鐨勬媧插巶鍟嗭紝鏃ユ湰鍏徃涔熸垨澶氭垨灝戝弬涓庡叾涓紝鍖呮嫭嬈х編鐨勭埍绔嬩俊銆侀樋灝?dāng)鍗$墢V佽鍩轟簹銆佹湕璁佸寳鐢?shù)锛屼互鍙?qiáng)鏃ユ湰鐨凬TT銆佸瘜澹氥佸鏅瓑鍘傚晢銆傝繖濂楃郴緇熻兘澶熸灦璁懼湪鐜版湁鐨凣SM緗戠粶涓婏紝瀵逛簬緋葷粺鎻愪緵鍟嗚岃█鍙互杈冭交鏄撳湴榪囨浮錛岃孏SM緋葷粺鐩稿綋鏅強(qiáng)鐨勪簹媧插榪欏鏂版妧鏈殑鎺ュ彈搴﹂鏂欎細(xì)鐩稿綋楂樸傚洜姝-CDMA鍏鋒湁鍏堝ぉ鐨勫競(jìng)鍦轟紭鍔褲? CDMA錛堢爜澶氬垎鍧鎶鏈級(jí)縐誨姩緗戠粶鎶鏈渶鏃╂槸搴旂敤鍦ㄥ啗浜嬮氫俊鎶鏈鍩燂紝90騫翠唬鍒濇湡鎵嶈漿涓烘皯鐢ㄩ氫俊鎶鏈傜湡姝e湪鍏ㄧ悆寰楀埌騫挎硾搴旂敤鐨勭涓涓跡錛わ輯錛℃爣鍑嗘槸錛╋汲錛嶏紮錛曪肌錛岃岃仈閫氭柊鏃剁┖鍓嶆湡鍦ㄥ浗鍐呭緩璁綜DMA緗戠粶鎵浣跨敤鐨勬槸錛╋汲錛嶏紮錛旴鏍囧噯錛屽畠涔熸槸灞炰簬2G鏃朵唬鐨勬爣鍑嗐傝繖嬈¤仈閫氭柊鏃剁┖瀹e竷鍦ㄥ叏鍥藉紑閫氱殑CDMA 2000 1X鏂扮綉緇滄槸浠庯緝錛籌紞錛欙紩B婕旇繘鑰屾潵鐨勶紝 CDMA 2000鏄睘浜庣涓変唬縐誨姩閫氫俊緋葷粺錛╋輯錛達(dá)紞錛掞紣錛愶紣緋葷粺鐨勪竴縐嶆ā寮忥紝瀹冪殑鍘熸剰鏄妸CDMA錛掞紣錛愶紣鍒嗕負(fù)澶氫釜闃舵鏉ュ疄鏂斤紝絎竴涓繃娓¢樁孌電О涓篊DMA錛掞紣錛愶紣 錛戯幾錛岄熺巼楂樹(shù)簬IS-95錛屽彲鏀寔308kibit/s鐨勬暟鎹紶杈擄紝緗戠粶閮ㄤ喚寮曞叆鍒嗙粍浜ゆ崲錛屽彲鏀寔縐誨姩IP涓氬姟銆傝屽彟涓涓爣鍑嗏斺攃dma2000-1XEV鏄湪cdma2000-1X鍩虹涓婅繘涓姝ユ彁楂橀熺巼鐨勫寮轟綋鍒訛紝閲囩敤楂橀熺巼鏁版嵁(HDR)鎶鏈紝鑳藉湪1.25MHz(鐩稿悓浜巆dma2000-1X甯﹀)鍐呮彁渚?Mit/s浠ヤ笂鐨勬暟鎹笟鍔★紝鏄痗dma2000-1X鐨勮竟緙樻妧鏈?GPP宸插紑濮嬪埗瀹歝dma2000-1XEV鐨勬妧鏈爣鍑嗭紝鍏朵腑鐢ㄩ珮閫氬叕鍙告妧鏈殑縐頒負(fù)HDR錛岀敤鎽╂墭緗楁媺鍜岃鍩轟簹鍏徃鑱斿悎寮鍙戠殑鎶鏈О涓?XTREME錛屼腑鍥界殑LAS-CDMA涔熷睘姝ゅ垪銆備絾CDMA 2000 1X鍦ㄦ妧鏈寚鏍囦笂鍙堝茍闈炲畬鍏ㄧ鍚?G鐨勬爣鍑嗭紝鎵浠ヤ竴鑸О鍏朵負(fù)2銆?5G鏇磋創(chuàng)鍒囦竴鐐廣? 絎簩涓樁孌電О涓?CDMA錛掞紣錛愶紣 錛擄幾錛屽畠涓巆dma2000-1X鐨勪富瑕佸尯鍒槸鍓嶅悜CDMA淇¢亾閲囩敤3杞芥嘗鏂瑰紡錛岃宑dma2000-1X鐢ㄥ崟杞芥嘗鏂瑰紡銆傚洜姝ゅ畠鐨勪紭鍔垮湪浜庤兘鎻愪緵鏇撮珮鐨勯熺巼鏁版嵁錛屼絾鍗犵敤棰戣氨璧勬簮涔熻緝瀹斤紝鍦ㄨ緝闀挎椂闂村唴榪愯惀鍟嗘湭蹇呬細(xì)鑰冭檻cdma2000-3X錛岃屼細(xì)鑰冭檻cdma2000-1XEV銆? TD錛峉CDMA鐨勪腑鏂囧惈涔変負(fù)鏃跺垎鍚屾鐮佸垎澶氬潃鎺ュ叆錛岃欏歸氫俊鎶鏈篃灞炰簬涓縐嶆棤綰塊氫俊鐨勬妧鏈爣鍑嗭紝瀹冩槸鐢變腑鍥界涓嬈℃彁鍑哄茍鍦ㄦ鏃犵嚎浼犺緭鎶鏈紙RTT錛夌殑鍩虹涓婁笌鍥介檯鍚堜綔錛屽畬鎴愪簡(jiǎn)TD錛峉CDMA鏍囧噯錛屾垚涓篊DMA TDD鏍囧噯鐨勪竴鍛樼殑錛岃繖鏄腑鍥界Щ鍔ㄩ氫俊鐣岀殑涓嬈″垱涓撅紝涔熸槸涓浗瀵圭涓変唬縐誨姩閫氫俊鍙戝睍鐨勮礎(chǔ)鐚傚湪涓庢媧層佺編鍥藉悇鑷彁鍑虹殑3G鏍囧噯鐨勭珵浜変腑錛屼腑鍥芥彁鍑虹殑TD-SCDMA宸叉寮忔垚涓哄叏鐞?G鏍囧噯涔嬩竴錛岃繖鏍囧織鐫涓浗鍦ㄧЩ鍔ㄩ氫俊棰嗗煙宸茬粡榪涘叆涓栫晫棰嗗厛涔嬪垪銆傝鏂規(guī)鐨勪富瑕佹妧鏈泦涓湪澶у攼鍏徃鎵嬩腑錛屽畠鐨勮璁″弬鐓т簡(jiǎn) TDD(鏃跺垎鍙屽伐)鍦ㄤ笉鎴愬鐨勯甯︿笂鐨勬椂鍩熸ā寮忋? TDD妯″紡鏄熀浜庡湪鏃犵嚎淇¢亾鏃跺煙閲岀殑鍛ㄦ湡鍦伴噸澶峊DMA甯х粨鏋勫疄鐜扮殑銆傝繖涓撫緇撴瀯琚啀鍒嗕負(fù)鍑犱釜鏃墮殭銆傚湪TDD妯″紡涓嬶紝鍙互鏂逛究鍦板疄鐜頒笂/涓嬭閾捐礬闂村湴鐏墊椿鍒囨崲銆傝繖涓妯″紡鐨勭獊鍑虹殑浼樺娍鏄紝鍦ㄤ笂/涓嬭閾捐礬闂寸殑鏃墮殭鍒嗛厤鍙互琚竴涓伒媧葷殑杞崲鐐規(guī)敼鍙橈紝浠ユ弧瓚充笉鍚岀殑涓氬姟瑕佹眰銆傝繖鏍鳳紝榪愮敤TD-SCDMA榪欎竴鎶鏈紝閫氳繃鐏墊椿鍦版敼鍙樹(shù)笂/涓嬭閾捐礬鐨勮漿鎹㈢偣灝卞彲浠ュ疄鐜版墍鏈?G瀵圭О鍜岄潪瀵圭О涓氬姟銆傚悎閫傜殑TD-SCDMA鏃跺煙鎿嶄綔妯″紡鍙嚜琛岃В鍐蟲(chóng)墍鏈夊縐板拰闈炲縐頒笟鍔′互鍙?qiáng)鋼Q浣曟販鍚堜笟鍔$殑涓?涓嬭閾捐礬璧勬簮鍒嗛厤鐨勯棶棰樸? TD鈥昐CDMA鐨勬棤綰夸紶杈撴柟妗堢伒媧誨湴緇煎悎浜?jiǎn)FDMA錛孴DMA鍜孋DMA絳夊熀鏈紶杈撴柟娉曘傞氳繃涓庤仈鍚堟嫻嬬浉緇撳悎錛屽畠鍦ㄤ紶杈撳閲忔柟闈㈣〃鐜伴潪鍑°傞氳繃寮曡繘鏅鴻兘澶╃嚎錛屽閲忚繕鍙互榪涗竴姝ユ彁楂樸傛櫤鑳藉ぉ綰垮嚟鍊熷叾瀹氬悜鎬ч檷浣庝簡(jiǎn)灝忓尯闂撮鐜囧鐢ㄦ墍浜х敓鐨勫共鎵幫紝騫墮氳繃鏇撮珮鐨勯鐜囧鐢ㄧ巼鏉ユ彁渚涙洿楂樼殑璇濆姟閲忋傚熀浜庨珮搴︾殑涓氬姟鐏墊椿鎬э紝TD鈥昐CDMA鏃犵嚎緗戠粶鍙互閫氳繃鏃犵嚎緗戠粶鎺у埗鍣紙RNC錛夎繛鎺ュ埌浜ゆ崲緗戠粶錛屽鍚屼笁浠gЩ鍔ㄩ氫俊涓鐢?shù)璧\鍜屽寘浜ゆ崲涓氬姟鎵瀹氫箟鐨勯偅鏍楓傚湪鏈緇堢殑鐗堟湰閲岋紝璁″垝璁㏕D鈥昐CDMA鏃犵嚎緗戠粶涓嶪NTERNET鐩存帴鐩歌繛銆? TD錛峉CDMA鎵鍛堢幇鐨勫厛榪涚殑縐誨姩鏃犵嚎緋葷粺鏄拡瀵規(guī)墍鏈夋棤綰跨幆澧冧笅瀵圭О鍜岄潪瀵圭О鐨?G涓氬姟鎵璁捐鐨勶紝瀹冭繍琛屽湪涓嶆垚瀵圭殑灝勯棰戣氨涓娿俆D錛峉CDMA浼犺緭鏂瑰悜鐨勬椂鍩熻嚜閫傚簲璧勬簮鍒嗛厤鍙彇寰楃嫭绔嬩簬瀵圭О涓氬姟璐熻澆鍏崇郴鐨勯璋卞垎閰嶇殑鏈浣?jīng)_埄鐢ㄧ巼銆傚洜姝わ紝TD錛峉CDMA閫氳繃鏈浣寵嚜閫傚簲璧勬簮鐨勫垎閰嶅拰鏈浣抽璋辨晥鐜囷紝鍙敮鎸侀熺巼浠?kbps鍒?Mbps鐨勮闊熾佷簰鑱旂綉絳夋墍鏈夌殑3G涓氬姟銆?
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聽(tīng)聽(tīng)聽(tīng) 鐩稿絎竴浠fā鎷熷埗寮忔墜鏈?1G)鍜岀浜屼唬GSM銆乀DMA絳夋暟瀛楁墜鏈?2G)錛岀涓変唬鎵嬫満涓鑸湴璁詫紝鏄寚灝嗘棤綰塊氫俊涓庡浗闄呬簰鑱旂綉絳夊濯掍綋閫氫俊緇撳悎鐨勬柊涓浠gЩ鍔ㄩ氫俊緋葷粺銆?/font>
聽(tīng)聽(tīng)聽(tīng) 瀹冭兘澶熷鐞嗗浘鍍忋侀煶涔愩佽棰戞祦絳夊縐嶅獟浣撳艦寮忥紝鎻愪緵鍖呮嫭緗戦〉嫻忚銆佺數(shù)璇濅細(xì)璁佺數(shù)瀛愬晢鍔$瓑澶氱淇℃伅鏈嶅姟銆?/font>
聽(tīng)聽(tīng)聽(tīng) 涓轟簡(jiǎn)鎻愪緵榪欑鏈嶅姟錛屾棤綰跨綉緇滃繀欏昏兘澶熸敮鎸佷笉鍚岀殑鏁版嵁浼犺緭閫熷害錛屼篃灝辨槸璇村湪瀹ゅ唴銆佸澶栧拰琛岃濺鐨勭幆澧冧腑鑳藉鍒嗗埆鏀寔鑷沖皯2Mbps(鍏嗗瓧鑺傦紡姣忕)銆?84kbps(鍗冨瓧鑺傦紡姣忕)浠ュ強(qiáng)144kbps鐨勪紶杈撻熷害銆?/font>