Òѽâ¾öÎÊÌâ (ÆÕͨÎÊÌâ)
UMTSÍøÂç
ÕâÊÇÒ»¸öʲôÑùµÄÍøÂ磬UMTSÊÇʲôÒâ˼£¿Õâ¸öÍøÂçµÄÌØµãÊÇʲô£¿
ÌáÎÊÕß: sha_mscbsc  ÌáÎÊʱ¼ä: 2010-04-14    
 
×î¼Ñ´ð°¸£º ****
»Ø´ðÕߣº dnaher007    »Ø´ðʱ¼ä£º2010-04-27    
23        22         ÆÀ¼Û¸Ã»Ø´ð(0)

ɨÂ븶·Ñ²é¿´ÍêÕû´ð°¸

X

¸ü¶à UMTS ÍøÂç MTS Ïà¹ØÎÊÌâ
ÆäËû´ð°¸ ( 6 )

WCDMAÒ²¾ÍÊÇÏÖÔÚÁªÍ¨µÄÔËÓªµÄ3G£¬¶Ô±ÈÆäËüµÄ3G£¬UMTSÏÂÔØ½Ï¿ì£¬7.2MbpsÏÂÐÐ,Ò²ÊÇ×î³ÉÊìµÄ3GÍøÂ磬ÖÕ¶ËÒ²·á¸»jlurewioK:JFD()$#_±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ

»Ø´ðÕߣº 280548097     »Ø´ðʱ¼ä£º2010-04-14 12:11    

23        17         ÆÀ¼Û¸Ã»Ø´ð(0)


ͨÓÃÒÆ¶¯Í¨Ñ¶ÏµÍ³£¨Universal Mobile Telecommunications System£¬Ëõд£ºUMTS£©Êǵ±Ç°×î¹ã·º²ÉÓõÄÒ»ÖÖµÚÈý´ú£¨3G£© ÒÆ¶¯µç»°¼¼Êõ¡£ËüµÄÎÞÏß½Ó¿ÚʹÓÃWCDMA¼¼Êõ£¬ÓÉ 3GPP¶¨ÐÍ£¬´ú±íÅ·ÖÞ¶ÔITU IMT-2000 ¹ØÓÚ3G·äÎÑÎÞÏßϵͳÐèÇóµÄ»ØÓ¦¡£ª1fkjhfjoK:JFD()$#±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ
UMTSÓÐʱҲ½Ð3GSM£¬Ç¿µ÷½áºÏÁË3G¼¼Êõ¶øÇÒÊÇGSM±ê×¼µÄºóÐø±ê×¼¡£UMTS ·Ö×é½»»»ÏµÍ³ÊÇÓÉ GPRS ϵͳËùÑݽø¶øÀ´£¬¹ÊϵͳµÄ¼Ü¹¹ÆÄΪÏàÏñ¡£
kjlurK:JFD±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ
2zcv545%#(ôK:JFD()$#_*(±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ
1997Äê7Ô£¬ETSI½«UMTS TRA£¨Terrestrial Radio Access£©candidatesµÄ proposals ¹éÄÉΪ£ºWCDMA£¬WTDMA£¬TDMA£¯CDMA£¬OFDMA£¬ODMAÎå´óÀà¡£1998Äê1Ô£¬ETSIÓà WCDMA ×öΪ UTRA£¨UMTS Terrestrial Radio Access£©µÄ air interface¡£UMTSÖ§³Ö1920kbpsµÄ´«ÊäËÙÂÊ£¨²»ÊǾ­³£¿´µ½µÄ2Mbps£©£¬È»¶øÔÚÏÖʵ¸ß¸ºÔØÏµÍ³ÖеäÐ͵Ä×î¸ßËÙÂÊ´óÔ¼Ö»ÓÐ384Kbps¡£¼´Ê¹ÕâÑùÊý¾Ý´«ÊäËÙÂÊÒѾ­¸ß³öGSM¾À´íÊý¾ÝÐŵÀ14.4kbps»òÕß¶à¸ö14.4 kbps×é³ÉµÄHSCSDÐŵÀ£¬ÕæÕýÄܹ»ÊµÏÖ¼Û¸ñ¿É½ÓÊܵÄÒÆ¶¯WWW·ÃÎʺÍMMS¡£
UMTSʵÏÖµÄǰÌáÊÇÏÖÔڹ㷺ʹÓÃGSMÒÆ¶¯µç»°ÏµÍ³£¬ÊôÓÚ2G¼¼Êõ¡£»¹ÓÐÒ»¸ö½Ð×öGPRSµÄ´Ó2GÑݽøµÄ;¾¶¡££¨¿ÉÒÔ¿´×÷2.5G£©GPRSÖ§³Ö¸üºÃµÄÊý¾ÝËÙÂÊ£¨ÀíÂÛÉÏ×î´ó¿ÉÒÔµ½140.8kbps£¬Êµ¼ÊÉÏÄÜʵÏÖ½Ó½ü56Kbps£©£¬Êý¾Ý·â×°ºÃÓÚÃæÏòÁ¬½Ó¡£GPRSÒѾ­ÔںܶàGSMÍøÂ粿Êð¡£a4f8e342K:JFD()$±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ

fjouieK:JFD(±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ
½ñÌìµÄUMTSÍøÂçδÀ´¿ÉÄÜÉý¼¶³ÉHSDPA£¬ÓÐʱҲ½Ð3.5G¡£ Ëü¿ÉÒÔʵÏÖÏÂÐÐÁ´Â·´óÓÚ10MbpsµÄ´«ÊäËÙ¶È¡£
UMTSÔÚÊг¡ÔË×÷ÉÏÇ¿µ÷ÒÆ¶¯ÊÓÆµµç»°»áÒéʵÏֵĿÉÄÜÐÔ£¬¾¡¹Üʵ¼ÊÉÏÕâÏîºÜÓÐDZÁ¦µÄ·þÎñ»¹ÓкܶàûÓо­¹ý²âÊÔÑéÖ¤¡£ÎÒ)$#@322K:JFD()$#±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ
UMTSÆäËü¿ÉÄܵÄÓ¦Óû¹ÓÐÒôÀÖÏÂÔØºÍÊÓÆµµç»°¡£wioK:JFD()±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ
21fd3s1fdÖK:JFD()$#_±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ
mvckjlureK:JFD()$#±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ
uierpoejµÀhK:JFD()$#_*±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ

»Ø´ðÕߣº robert2006     »Ø´ðʱ¼ä£º2010-04-14 15:11    

23        24         ÆÀ¼Û¸Ã»Ø´ð(1)
лл..............
  2010-05-24 16:32 



UMTS¼´ÊÇWCDMA
($(Ŷ*&#%kcvK:JFD()$#_*(±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ
Universal Mobile Telecommunications Systemh$#$#&K:JFD(±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ


»Ø´ðÕߣº sky3angel     »Ø´ðʱ¼ä£º2010-04-14 15:19    

25        25         ÆÀ¼Û¸Ã»Ø´ð(0)


UMTS(Universal Mobile Telecommunications System)2dsfds1fads²K:JFD()$#_*(±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ
Ò»°ã¾ÍÖ¸WCDMAÍøÂ磡~~~erpoejµÀK:JFD()$±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ
21fd3s1fK:JFD()$±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ

»Ø´ðÕߣº wangweitao     »Ø´ðʱ¼ä£º2010-04-20 10:35    

24        17         ÆÀ¼Û¸Ã»Ø´ð(0)


UMTS(Universal Mobile Telecommunications System)²21f3K:JFD±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ
Ò»°ã¾ÍÖ¸WCDMAÍøÂ磡~~~
3dsaf12zcvK:JFD()$#_±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ

»Ø´ðÕߣº wangweitao     »Ø´ðʱ¼ä£º2010-04-20 10:35    

23        17         ÆÀ¼Û¸Ã»Ø´ð(0)


¼òµ¥µã»Ø´ð ºÇºÇ 21fd3s1fK:JFD()$±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ
UMTS¾ÍÊÇ3GPP   ÊÇ3GµÄÍøÂç±ê×¼ Ëü°üÀ¨£ºWCDMA ºÍTD-SCDMA  &)*(&#*K:JFD()±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ
WCDMAºÍTD-SCDMA   ¶¼ÊÇÎÞÏß´«Êä±ê×¼£¬Ò²¾ÍÊÇÎÒÃǾ­³£ÔÚ¸÷ÖÖ×ÊÁÏÉÏ¿´µ½µÄRTT874*$K:JFD±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ
ÎÒÃÇ»¹¾­³£¿´µ½Ê²Ã´R99 ,R4,R5,R6ʲôµÄ itre4K:JFD±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ
ÕâЩָµÄÊǰ汾ºÅÒ)$#@3221aK:JFD()$#_±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ
R99ÊÇWCDMAµÄ°æ±¾ºÅ
R4 ÊÇTD-SCDMAµÄ°æ±¾ºÅjhfjoK:JFD±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ
R5 ÊÇHSDPA¼¼ÊõÓ¦ÓÃÔÚWCDMAºóµÄ°æ±¾ºÅ%#*(ÎÒ)K:JFD()±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ
R6 ÊÇHSDPA¼¼ÊõÓ¦ÓÃÔÚTD-SCDMAºóµÄ°æ±¾ºÅ¶*&#%kcvmmvK:JFD()$#_*±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ
&#%kcK:JFD±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ
ÔÚÏÖÍøÖÐͨ³£Ìáµ½UMTSÒ»°ãÖ¸µÄ¾ÍÊÇWCDMA£¬ÒòΪÏà½ÏTD-SCDMAǰÕ߯ռ°½Ï¹ãdÖª1fkjhfjK:JFD()$#_±¾ÎÄÀ´×ÔÒÆ¶¯Í¨ÐÅÍøwww.mscbsc.com,°æÈ¨ËùÓÐ


»Ø´ðÕߣº dnaher007     »Ø´ðʱ¼ä£º2010-04-27 00:15    

23        22         ÆÀ¼Û¸Ã»Ø´ð(0)

ÖйúͨÐÅÈ˲ÅÍø | ½­ËÕͨÐÅÈ˲ÅÍø | ɽ¶«Í¨ÐÅÈ˲ÅÍø | Î人ͨÐÅÈ˲ÅÍø | Õ㽭ͨÐÅÈ˲ÅÍø | ºþÄÏͨÐÅÈ˲ÅÍø
Ö麣ÊÀ¼Í¶¦Àû¿Æ¼¼¹É·ÝÓÐÏÞ¹«Ë¾ Ƹ£ºÕã½­-ÏúÊÛ¾­Àí
ÐèÇóÈËÊý£º1 ÈË µØµã£ºÕã½­Ê¡
ÉϺ£µÂרÐÅÏ¢¼¼ÊõÓÐÏÞ¹«Ë¾ Ƹ£ºÊµÏ°Éú
ÐèÇóÈËÊý£º5 ÈË µØµã£ºÉϺ£ÊÐ
ÄϾ©»ªËտƼ¼ÓÐÏÞ¹«Ë¾ Ƹ£ºLTEºǫ́Öи߼¶ÈËÔ±
ÐèÇóÈËÊý£º6 ÈË µØµã£º¸£½¨Ê¡
ºÏ·ÊѶ³ÏͨÐſƼ¼ÓÐÏÞ¹«Ë¾ Ƹ£ºRFÍⳡ¹¤³Ìʦ£¨½­ËÕ£©
ÐèÇóÈËÊý£º2 ÈË µØµã£º½­ËÕÊ¡
³ØÖݰ²µÂͨÐŹ¤³ÌÓÐÏÞ¹«Ë¾ Ƹ£ºÎÞÏßÉè¼ÆÈËÔ±
ÐèÇóÈËÊý£º20 ÈË µØµã£ºÉϺ£ÊÐ,ËÕÖÝÊÐ
ºÓÄÏÖпÆÖÇÐÅÐÅÏ¢¼¼ÊõÓÐÏÞ¹«Ë¾ Ƹ£ºVolteÓÅ»¯ÖС¢¸ß¼¶¹¤³Ìʦ
ÐèÇóÈËÊý£º3 ÈË µØµã£ºÖ£ÖÝÊÐ,ÂåÑôÊÐ,ÐÂÏçÊÐ,Ðí²ýÊÐ,¿ª·âÊÐ
ÖÐͨ·þ½¨ÉèÓÐÏÞ¹«Ë¾ Ƹ£ºLTE¸ß¼¶ÍøÓʤ³Ìʦ£¨Ã·ÖÝ£©
ÐèÇóÈËÊý£º2 ÈË µØµã£ºÃ·ÖÝÊÐ
ÄϾ©¼Î»·¿Æ¼¼ÓÐÏÞ¹«Ë¾ Ƹ£º»ªÎªÎÞÏß¶½µ¼-ºÓÄÏ
ÐèÇóÈËÊý£º20 ÈË µØµã£ºÖ£ÖÝÊÐ,äðºÓÊÐ,Ðí²ýÊÐ
ÉϺ£×ÏÖ®ÐÅÏ¢¿Æ¼¼ÓÐÏÞ¹«Ë¾ Ƹ£ºÍøÂçÓÅ»¯¹¤³ÌʦÖи߼¶¶àÃû
ÐèÇóÈËÊý£º20 ÈË µØµã£ºÉϺ£ÊÐ
º¼Öݶ«ÐÅÍøÂç¼¼ÊõÓÐÏÞ¹«Ë¾ Ƹ£ºÏÃÃÅLTEºǫ́Öи߼¶
ÐèÇóÈËÊý£º2 ÈË µØµã£ºÏÃÃÅÊÐ
ÈȵãÎÊÌâ
ÔÞÖúÉÌÁ´½Ó


ÁªÏµÎÒÃÇ - ÎÊͨÐÅר¼Ò Powered by MSCBSC ÒÆ¶¯Í¨ÐÅÍø  © 2006 -