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Thc hin:NguynNgcTin - 09520441Ng Thnh Lun - 09520421SmVit Anh Khoa - 09520137

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I. Tnh hnh sdng Internet Vit NamII.Thno l cng ngh 3G

III.Cng ngh 3G

IV.Cc tiu chun 3G thng miV.u & nhc im ca mng 3G

VI.Tnh hnh th trng 3G Vit Nam

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I. Tnh hnh sdngInternet Vit Nam

Biutng trng Internet Vit Nam thng7-2010

http://static.vietcoding.com/wp-content/uploads/2010/09/bieu-do-tang-truong-internet-viet-nam-thang7-2010.jpg

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II.Th no l cng ngh 3G

3G l thut ng dng ch cc h thng thng tin ding th h th 3 (Third Generation). c rt nhiungi nhm ln mt gia hai khi nim 3G v UMTS(Universal Mobile Telecommunications Systems).

Mng 3G (Third-generation technology) l th h th baca chun cng ngh in thoi di ng, cho php truyn

c d liu thoi v d liu ngoi thoi (ti d liu, giemail, tin nhn nhanh, hnh nh...).

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Tin thn ca cng ngh 3G l 1G & 2G cng vi2.5G

immnhca cng ngh ny so vi cng ngh 2Gv 2.5G l cho php truyn, nhn cc d liu, mthanh, hnh nh cht lng cao cho c thu bao c

nh v thu bao ang di chuyn cc tc khcnhau.

Quc gia u tin amng 3G vo sdngrng rilNhtBn. Vo nm 2001, NTT Docomo l cng tyu tin ra mt phin bn thng mi ca mng W-CDMA

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III.Cng ngh 3G

Da trn cimca cc xut, nm 1999, ITU phn cc xut thnh 5 nhmchnh v xy dng thnh chun IMT-2000. Nm 2007, WiMAX cb sung vo IMT-2000:

ITU IMT-2000 Tn thng dngBng thng d

liu M t

TDMA Single-Car

rier (IMT-SC)EDGE (UWT-136)

EDGE

Evolution

Cn gi l TDMA mtsng mang. L tiu chuncphttrint cc hthng GSM/GPRS hin c ln GSM2+.

CDMA Multi-Carr

ier (IMT-MC) CDMA2000 EV-DO Cn gi l CDMA a sng mang. y l phin bn 3G cahthng IS-95 (hin nay gi l cdmaOne).

CDMA Direct Spr

ead (IMT-DS)

UMTS

W-CDMA

HSPA

y thcchtl 2 tiu chun "h hng". Chun IMT-DScn gi l CDMA triph dy trctip, hay UTRA FDDhoc WCDMA. Chun IMT-TC cn gi l CDMA TDD, hayUTRA TDD, ngha l hthng UTRA sdngphngphp song cng phn chia theo thi gian (Time-divisionduplex). UTRA l tvitttca UMTS Terrestrial RadioAccessCDMA TDD

(IMT-TC)

TD-CDMA

TD-SCDMA

FDMA/TDMA

(IMT-FT)DECT

y l tiu chun cho cc hthngthitbinthoistmngn chu u.

IP-OFDMA WiMAX (IEEE 802.16)y l tiu chun IEEE 802.16 cho vicktni Internet

bng thng rngkhng dy khong cch ln.

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IMT-2000 a ra cc yu cu cho cc mng di ng th h k tip

bao gm:+Tng dung lng h thng+ Tng thch ngc vi cc h thng thng tin di ng trc

y (gi l 2G)+ H tr a phng tin

+ Dch v d liu gi tc cao, vi cc tiu chun v tc truyn c xc nh:>2Mbps khi ng yn hay trong khu vc ni th>384Kbps khu vc ngoi vi>144Kbps khu vc nng thn

> Vi thng tin v tinh,kh nng ph sng rng,tc truyn s liu c kh nng thay i.

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IV.Cc tiu chun 3G thng mi

Cng ngh 3G c nhc n nh l mt chunIMT-2000 ca T chc Vin thng Th gii(ITU), thng nht trn th gii. Tuy nhin, trnthc t cc nh sn xut thit b vin thng lntrn th gii xy dng thnh 4 chun 3Gthng mi chnh:

W-CDMA CDMA 2000

TD-CDMA

TD-SCDMA

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V.u & nhc im ca mng 3G

1.u im

Bng thng cao

Lun lun-online thitb2.Nhc im Chi phcao

Ngun inln

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VI.Tnh hnh th trng 3G VitNam

Ngy nay c nhiu thit b 3G, tiu biu l cc dng in

thoi 3G nh Iphone, Black Berry, mt s model caNokia..., mi loi thiet bi 3G u c cc u im v nhcim ring. Ngi dng cn cn c vo iu kin v nhucu s dnga ra la chn tt nht cho mnh.

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USB 3G

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WWAN 3G

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Data Card 3G

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Chn thnh cmn