锘??xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>&#27431;&#32654;&#26085;&#38889;&#22269;&#20135;&#33394;&#32508;&#21512;&#19968;&#20108;&#19977;&#22235;&#44;&#22269;&#20135;&#31934;&#21697;&#20122;&#27954;&#22235;&#21306;&#22312;&#32447;&#35266;&#30475;&#44;&#97;&#118;&#22312;&#32447;&#20013;&#25991;</title><link>http://www.aygfsteel.com/wang2bkhm/</link><description /><language>zh-cn</language><lastBuildDate>Fri, 20 Jun 2025 18:30:28 GMT</lastBuildDate><pubDate>Fri, 20 Jun 2025 18:30:28 GMT</pubDate><ttl>60</ttl><item><title>鍏充簬TD緗戠粶錛堣漿錛?/title><link>http://www.aygfsteel.com/wang2bkhm/archive/2008/11/13/240214.html</link><dc:creator>闃塊攱</dc:creator><author>闃塊攱</author><pubDate>Thu, 13 Nov 2008 01:57:00 GMT</pubDate><guid>http://www.aygfsteel.com/wang2bkhm/archive/2008/11/13/240214.html</guid><wfw:comment>http://www.aygfsteel.com/wang2bkhm/comments/240214.html</wfw:comment><comments>http://www.aygfsteel.com/wang2bkhm/archive/2008/11/13/240214.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/wang2bkhm/comments/commentRss/240214.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/wang2bkhm/services/trackbacks/240214.html</trackback:ping><description><![CDATA[TD緗戠粶鏆═D-SCDMA銆?<br />
TD錛峉CDMA鐨勪腑鏂囧惈涔変負鏃跺垎鍚屾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?鍏ㄧ悆3G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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TDD(鏃跺垎鍙屽伐)鍦ㄤ笉鎴愬鐨勯甯︿笂鐨勬椂鍩熸ā寮忋�?<br />
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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鍐蟲墍鏈夊縐板拰闈炲縐頒笟鍔′互鍙婁換浣曟販鍚堜笟鍔＄殑涓?涓嬭閾捐礬璧勬簮鍒嗛厤鐨勯棶棰樸�?<br />
<br />
TD鈥昐CDMA鐨勬棤綰夸紶杈撴柟妗堢伒媧誨湴緇煎悎浜咶DMA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鐢佃礬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?<br />
<br />
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�浣沖埄鐢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?<br />
<br />
TD錛峉CDMA涓篢DD妯″紡錛屽湪搴旂敤鑼冨洿鍐呮湁鍏惰嚜韜殑鐗圭偣錛氫竴鏄粓绔殑縐誨姩閫熷害鍙楃幇鏈塂SP榪愮畻閫熷害鐨勯檺鍒跺彧鑳藉仛鍒?40km/h錛涗簩鏄熀绔欒鐩栧崐寰勫湪15km浠ュ唴鏃墮璋卞埄鐢ㄧ巼鍜岀郴緇熷閲忓彲杈炬渶浣籌紝鍦ㄧ敤鎴峰閲忎笉鏄緢澶х殑鍖哄煙錛屽熀绔欐渶澶ц鐩栧彲杈?0錛?km銆傛墍浠ワ紝TD錛峉CDMA閫傚悎鍦ㄥ煄甯傚拰鍩庨儕浣跨敤錛屽湪鍩庡競鍜屽煄閮婅繖涓や釜涓嶈凍鍧囦笉褰卞搷瀹為檯浣跨敤銆傚洜鍦ㄥ煄甯傚拰鍩庨儕錛岃濺閫熶竴鑸兘灝忎簬200km/h錛屽煄甯傚拰鍩庨儕浜哄彛瀵嗗害楂橈紝鍥犲閲忕殑鍘熷洜錛屽皬鍖哄崐寰勪竴鑸兘鍦?5km浠ュ唴銆傝�屽湪鍐滄潙鍙婂ぇ鍖哄叏瑕嗙洊鏃訛紝鐢╓CDMA FDD鏂瑰紡涔熸槸鍚堥�傜殑錛屽洜姝DD鍜孎DD妯″紡鏄簰涓鴻ˉ鍏呯殑銆?/ca>
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