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Kha Lun Tt Nghip Thng Tin Di ng

+ Tun th cc khuyn ngh ca ESTI v chun giao tip GPRS.

+ Kt ni vt l giao din IP trn E1 v Ethernet 10/100 Mbps.

+ Cho php nh ngha ti 155.000 hng trong bng nh tuyn Internet.

3.5.2. H thng GPRS trin khai trn mng VSMa) Dung lng h thng li GPRS cho mng MobiFone

+ V phn cng, dung lng h thng t c ti 100.000 thu bao. Tuynhin, hin ti dung lng h thng l 10.000 thu bao, phn b nh sau:

Ti H ni: 3.000 thu bao, phc v cho thu bao khu vc min Bc.

Ti TP. H Ch Minh: 7.000 thu bao, phc v cho thu bao khu vc min

Nam v min Trung. Ch tiu thit k h thng:+ Lu lng s dng trung bnh/thu bao GPRS gi bn l 2 kbps.

+ Tng lu lng d liu trao i gi bn l 2 Mbps.

+ T l ngi s dng GPRS trn gi bn l 10%.

b) Cu hnh GPRS cho mng MobiFone - VMS

Gm 02 thit b SGSN kt ni vi mng GSM theo cu hnh:

+ Thit b SGSN ti H ni kt ni vi h thng BSS min Bc.+ Thit b SGSN ti TP. H Ch Minh kt ni vi h thng BSS min Nam v

min Trung.

+ 01 thit b GGSN ti HN kt ni ti cc SGSN ti H ni v TP.HCM.

+ 01 thit b Charging Gateway phc v tnh cc GPRS.

+ 01 h thng qun l v khai thc OMC-GPRS (OMC-G).

c) Nng cp h thng mng GSM c kh nng kt ni GPRS Trang b b sung chc nng qun l cc gi s liu PCU (Package Control

Unit) cho cc BSC trn mng.

+ 03 BSC khu vc min Bc (H ni).

+ 04 BSC khu vc min Nam (TP. HCM) v min Trung ( Nng). Nng cp phn mm cho NSS v BSS b sung cc tnh nng GPRS.

+ NSS khu vc min Bc.

Trng H Cng Ngh - HQGHN Trn nh Trng- K4966

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72/90


+ NSS khu vc min Nam v min Trung.

Lu : H thng GPRS c trin khai trn c hai di tn GSM 900 v GSM 1800.

d) Nng cp h thng tnh cc

+ Trang b mt h thng tnh cc GPRS tp trung ly file cc t CharginGateway v MMSC tnh cc.

+ H thng tnh cc v qun l khch hng s c thay i qun l cthu bao c ng k dch v GPRS, u ni dch v, cp nht d liu cc GPRS.

e) Tin trin khai GPRS

Hin nay, mng thng tin di ng MobiFone ang bc vo giai on u tin

ca l trnh pht trin mng tin ln 3G - giai on trin khai GPRS da trn nn mGSM hin ti.

Vic trin khai GPRS bao gm 3 giai on:

Giai on 1: Trin khai th nghim min ph cho tt c cc thu bao tr titrc v tr tin sau.

Giai on 2: Trin khai chnh thc trn ton mng: nng cp cu hnh SGSN c th cung cp dung lng 200.000 thu bao v m rng phc v cho c 61tnh thnh trn c nc.

i vi thu bao tr tin sau: Vic tnh cc s c thc hin trn c s tfile cc CDR tnh cc Offline trn c s h thng tnh cc hin c.

i vi thu bao tr tin trc

+ Tnh cc Offline: cn thit lp tm thi mt thit b mediation device tncc theo phng thc Offline.

+ Tnh cc Online: vic tnh cc theo thi gian thc hin ti v cng nghvn cha thc hin c, phi ch n CAMEL pha 3.

Giai on 3: Cung cp GPRS cho thu bao chuyn vng quc t. Trn c skt qu ca giai on 2 s tin hnh m phn, la chn i tc cung cp cntruy nhp GRX phc v GPRS roaming. Khi thu bao chuyn vng ra ncngoi, vn truy nhp c v mng ch HPLMN.

3.5.3. Trin khai cc dch v GPRS trn mng VMS


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Truy cp mng ni b Intranet: Email/Fax, truy cp c s d liu cng cng, cs d liu c nhn. i tng khch hng l cc c quan, t chc hoc doanh nghiKhch hng s dng dch v c th truy nhp v mng ni b LAN/WAN trao thng tin t my u cui di ng. Gia mng ni b ca khch hng WAN/LAN sc ng kt ni trc tip hoc qua mng Internet ti h thng GPRS (GGSN).

Truy cp Internet (trnh duyt Web, tin tc, thng mi in t, email): Tngt nh WAP, khch hng c th truy nhp Web qua GPRS vi giao thc WML.

Nhn tin a phng tin (MMS): bao gm mt s ng dng sau:

+ Gi v nhn hnh nh t th vin h thng.

+ Gi v nhn bn nhc t th vin h thng (file midi hoc amr).

+ Gi cc tin nhn MMS v thi tit, th thao, s kin quan trng, thng tin ti chnh+ Gi cc tin nhn MMS v cc chng trnh truyn hnh.

+ Gi cc video clip hot hnh.

+ Gi/ nhn hnh nh t cc my u cui di ng c gn camera.

+ Hp th in t cho ngi s dng. Thu bao MMS s c mt hp th va ch dng: [email protected].

+ Giao tip vi cc my ch email POP3 cho php nhn th t cc hp th nhYahoo,

+ H tr vic nhn tin nhn MMS qua web cho cc my u cui khng cchc nng MMS. Khi c mt tin nhn MMS gi n mt thu bao, nu my u cuca thu bao ny khng h tr tnh nng MMS, h thng s gi mt tin nhn SMS, vd bn va c mt tin nhn MMS ti a chhttp://www.mobifone.com.vn/mmsc.

+ Tr chuyn (Chat).

+ Cc dch v gii tr: Game, Horoscope+ Thng tin, nh v

3.5.4. Phng n trin khai MMS

H thng MMS hon chnh bao gm phn cng v phn mm, tun th khuyngh ca ETSI:

+ Dung lng ban u ca h thng: 20.000 thu bao.

+ Dung lng bn tin cho php trong gi bn: 5.000 bn tin.

mailto:[email protected]:[email protected]://www.mobifone.com.vn/mmscmailto:[email protected]://www.mobifone.com.vn/mmsc

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+ S lng bn tin MMS trung bnh/thu bao gi bn: 0,25.

+ Phm vi cung cp dch v: ton quc.

+Cc chc nng h thng c trang b bao gm (xem s kt ni km theo):

MMS Relay/Server: Chc nng trung tm ca h thng MMS cha cc phnmm chu trch nhim x l, gi nhn tin nhn MMS, qun l gim st h thng, t bo co

MMS user database: C s d liu cha ng thng tin v thu bao dch v MMS.

Cc phn mm giao tip chun theo khuyn ngh ca ETSI i vi h thnMMS: MMS, MM7.

OMC cho h thng MMS: H thng c mn hnh OMC qun l v gim sthot ng.

3.5.5. D kin phng n tnh cc cc dich v GPRS

a) Cc tham s tnh cc

Theo lu lng s liu trao i (Data Volume)

Phng thc tnh cc ny cho php khch hng online v gi/nhn cc thngtin theo nhu cu, phn nh ng mc s dng thc t ca mng li v cc chi ph

c lin quan.C th ghi tch bit d liu gi v nhn phc v tnh cc theo tng lo

dch v nh i vi dch v Multimedia download ch tnh cc theo ln d linhn. Tuy nhin khch hng cha quen thuc vi cch tnh cc ny.

Theo thi lng s dng dch v (Duration)

Cch tnh cc ny ging nh cch tnh cc thoi thng thng. Tuy nhin,tham s tnh cc ny khng pht huy c u th ca dch v v khng phn nng mc s dng.

Cht lng dch v m khch hng yu cu (QoS)

Tnh cc theo cht lng dch v l im ni bt trong vic s dngGPRS. Cht lng dch v bao gm nhiu yu t ( tr, mc u tin, tcy, thng lng). Tuy nhin, khch hng cng cha quen thuc vi cch tnhcc ny.

ch truy nhp s liu (Access Point Name)


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APN c xc nh khi thit lp kt ni v s gip phn bit vic s dng cdch v ca khch hng. Do c APN m khch hng truy nhp s l cn c tnhcc. Vic tnh cc theo APN cha quen thuc vi khch hng.

Tnh cc theo dch v (Service Identification)Giai on u GPRS APN c th c s dng phn bit dch v v gia

on sau mc QoS v APN s c s dng xc nh loi dch v m khchng s dng.

Ngoi ra cn mt s tham s khc phc v tnh cc nh:

Thi gian truy nhp (gi bn, gi ri).

Ngy truy nhp: Ngy ngh, ngy l

Vic tnh cc ca cc nh khai thc c th c xc nh trn c s mt honhiu tham s. Trong giai on u cung cp dch v, s dng tham s tnh cc gin, d hiu cho khch hng.

b) xut v phng thc tnh cc

Nguyn tc tnh cc

Mc cc tng ng vi cc nc trong khu vc v trn th gii.

Cho php tt c cc i tng thu bao (thu bao tr tin trc v thu bao trtin sau) nu c nhu cu u c th ng k s dng dch v khai thc ti a nlc mng li.

Phng thc tnh cc n gin, d hiu cho khch hng ng thi pht huyc cc u th ca cng ngh GPRS.

Tnh cc theo nguyn tc CPP (Calling Party Pay): thu bao no s dng dchv th thu bao phi tr tin.

Tnh cc trn c s ng dng.

Phng thc tnh cc i vi dch v truyn d liu v truy cp Internet.

Nguyn tc tnh cc:

+ Tnh cc theo ln ca d liu gi i hoc ti v.

+ Phn bit theo gi bn (Peak) v gi ri (Off Peak).


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+ n v tnh cc: 1 kilobyte (1 kilobyte = 1.024 byte)

+ Phng thc tnh cc: 1+1. Phn l cha 1kb tnh trn thnh 1kb.

+ Mc cc (cha bo gm thu GTGT):

+ Cc ng k: min cc.+ Cc thu bao thng: min cc.

+ Cc truy nhp: 45 ng/kilobyte khng phn bit gi bn v gi ri. i vi dch v MMS:

+ Tnh cc: gm 2 loi MMS (cha bao gm thu GTGT):

- MMS thng (ch c text): 500 ng/ MMS.

- Multimedia MMS : 1.500 ng/ MMS.Lu : Dung lng ti a ca mt MMS l 30-50 Kbyte. Tuy nhin cn phc

thuc vo thit b u cui, cht lng truyn ti d liu.

+ T l n chia khi gi MMS lin mng:

+ Mng khch: 50% cc MMS thng (500 ng/ MMS).

+ Mng ch: Doanh thu cc cn li ( chi ph ni dung thng tin).

3.5.6. nh gi kt qu trin khai th nghima) nh gi, la chn cng ngh

Gii php ca hng Alcatel:

H thng GPRS ca Alcatel c thit k da trn c s cc thit b Router cCisco. H thng c linh hot cao, d nng cp, m rng, d khai thc v bdng. Chi ph thit b thp, nht l khi mng c cu hnh khng ln.

Khi nng cp ln cng ngh 3G, cn phi thay i v b sung mt s ph ki

ca h thng.b) Vng ph sng GPRS trong pha th nghim

Vng ph sng khu vc H ni gm cc BSC 4, 5, 6, BSC Gip Bt v BSCHi Phng.Vng ph sng khu vc TP.H Ch Minh gm ton b 6 BSC, nhng ngotr cc site s dng thit b RBS 200.

Vng ph sng khu vc Nng gm BSC N.

c) Ni dung v kt qu o kim


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Hin nay, h thng GPRS trn mng VMS c lp t, chy th v hmng. H thng sn sng chun b chuyn sang giai on khai thc thng mi.

Cc cng vic o kim, nh gi cc thit b h thng GPRS cng nh cht ln

dch v c thc hin. Ni dung o kim, nh gi y tp trung cho cng tkhai thc, bo dng v trin khai dch v. C th tm tt mt cch tng th nh sau:

V qun l di ng

Cc ni dung o kim v qun l di ng bao gm kim tra cc th tc truynhp mng, cc trng thi ca thu bao GPRS, kim tra vic nh tuyn... Cc bi tp trung vo:

+ Vic gn knh bo hiu PDCH trong h thng GPRS. Cc th tc nhn thc

xa, treo i vi thu bao GPRS.+ Cc th tc vo ra (Attach/ Detach) ca thu bao GPRS. Qu trnh cp nht,

m ha, nh tuyn trong vng ph sng GPRS.

+ Cc th tc ny nhm h tr cho vic qun l thu bao v dch v GPRS, htr cung cp dch v cho thu bao, ng thi m bo an ton mng li trong hthng GPRS.

Kt qu o kim cng cho thy h thng GPRS th nghim tun th y

cc tiu chun ca GPRS Release 2.Cht lng dch v GSM/ GPRS

Ni dung o kim v cht lng dch v nhm kim tra cc trng hp khi mdi ng GPRS s dng dch v... Tiu ch kim tra v nh gi tp trung vo chlng dch v, bao gm:

+ Cc phng thc m ha CS-1 n CS-2 v tc truyn s liu trn giaodin v tuyn.

+ Vic qun l, phn phi ti nguyn v tuyn trong GPRS.

+ Qu trnh chuyn giao (handover) gia cc cell trong GPRS.

+ Th tc kch hot, sa i, hy b PDP Context trong GPRS.

+ Dch v SMS trong h thng GPRS.

+ Cht lng ph sng v tc truyn s liu.

Kt qu o kim cho thy


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+ H thng GPRS trn mng VMS cung cp c ch m ha s liu trn giaodin v tuyn n CS-2 theo tiu chun GPRS Release 2.

+ Trong trng hp cht lng ph sng tt, ti nguyn v tuyn cn

ng v tc di chuyn tng i chm (khong di 20 km/h) th GPRS cho phtruyn s liu vi tc ti a vi s knh m thit b u cui c th p ng

+ Hu ht mi v tr 2 thnh ph ln H ni v TP H Ch Minh thng thngtc ch t khong 50% n 80% tc quy c.

+ Khi trong vng ph sng GPRS, GPRS lun ch sn sng to chongi dng cm gic c kt ni lin tc.

+ Khi di chuyn t cell ny sang cell khc trong vng ph sng ca GPRS, ch

sn sng ny lun c duy tr, tuy nhin tc truyn s liu ph thuc vo tnguyn v tuyn ti cell c cn p ng c hay khng.

Thi gian truy nhp ca thu bao vo

+ Thi gian thit lp ng truyn trn giao din v tuyn.

+ Thi gian thit lp cc ng dn n cc c s d liu trong mng Internet

Hin nay, cc tiu ch thi gian cha c iu kin kim tra do lu lngtrong mng GPRS khng ng k. Hiu sut s dng knh v tuyn ca GPRS cahn trong chuyn mch knh.

m bo cht lng dch v mc chp nhn c, mng GSM/GPRcho php khai bo ti nguyn v tuyn dnh ring cho cc dch v GPRS (t l da vonhu cu thc t ca cc dch v cng nh cht lng m cc dch v i hi).

Nng lc truyn dn v tuyn khng ch ph thuc vo s my thu pht ti tncell, tng trm BTS m cn ph thuc vo kch c ca b x l gi PCU.

Cng ngh GPRS cho php phn v tuyn cung cp ti nguyn mt cch linhhot (cp knh ng) nhm m bo ti u vic s dng ti nguyn v tuyn.

Gii quyt vn tc trn c s s dng a khe thi gian trn mi sng mang.

C th trin khai c phn ln cc dch v Internet vi cht lng chp nhc, nhng do cc hn ch v cu trc phn v tuyn v vic s dng ph tn GPRS vn cn hn ch v tc s liu v v s linh hot trong cu trc mng tnhp. Tuy nhin, cng ngh 3G s khc phc c cc nhc im ny.

3.6. Trin khai th nghim h thng 3G


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3.6.1. Mc ch th nghim

+ Th nghim cng ngh thng tin di ng 3G trn mng MobiFone.

+ Th nghim cc tnh nng h thng thng tin di ng 3G.

+ Kim nghim thc t v tnh u vit ca cng ngh 3G so vi cng ngh 2G2,5G hin nay.

+ nh gi kh nng kt hp gia GSM v 3G trn cng mt mng li.

+ nh gi nhu cu th trng v xc nh thi gian biu cho trin khai chnhthc trn mng.

La chn tiu chun v cng ngh

a. Giao tip v tuyn v ph tnCc giao tip v tuyn chun cho h thng 3G do 3GPP - Release 99 a ra

gm: WCDMA gm 2 ch :

UTRA FDD: s dng hai di tn s (2x60 MHz) tch bit cho ng ln vng xung:

+ ng ln : 1920 - 1980 MHz.

+ ng xung: 2110 - 2170 MHz.

rng mi sng mang l 5 MHz.

UTRA TDD: phn knh ng ln v ng xung theo thi gian, s dngchung di tn 25 MHz cho c ng ln v ng xung: 1900 - 1920 MHz v 2020 2025 MHz. rng mi sng mang l 5 MHz.

Cdma2000 a sng mang (cdma2000 MC - 1X, 3X...): ng xung ghp asng mang (ti a 12 sng mang) CDMA bng hp vi tc tri ph mi sng manl 1,228 Mcps (tng ng vi tc tri ph IS-95). ng ln tri ph trc tivi tc tri ph 1,228 Mcps.

Giao din chun u tin a ra cho cdma2000 l cdma2000 3X vi rngmi sng mang l 3,75 MHz.

la chn chun giao tip v tuyn 3G th nghim trn mng 3G, chng ch quan tm n chun WCDMA bi v:

y l giao din v tuyn 3G c cc nh sn xut thit b Chu u h tr v

pht trin sn phm. Thit b mng li GSM hin ti ca VMS l do Alcatel, Eicss


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v Huawei cung cp.

Tng thch vi th h GSM 2G v 2,5G.

Nh vy, trong WCDMA, ta cn th nghim hai ch TDD v FDD. V m

l thuyt, h thng UTRA TDD v UTRA FDD u h tr cc dch v d liu tc cao vi cht lng tng ng nhau. Do s dng chung mt bng tn cho c xung v ng ln, nhiu trong h thng TDD l vn cn phi c ch trtrong vic quy hoch mng v tuyn. Trn thc t, TDD thch hp i vi cc nhc nhu cu tc s liu ln. Ngi ta xut trin khai cc trm TDD kt hp trocc vng ph sng ca FDD tng dung lng mng 3G.

Trong giai on th nghim 3G, VMS MobiFone trin khai th nghim c hach WCDMA TDD v FDD.

Cc thng s tiu chun cho giao tip v tuyn WCDMA FDD nh sau:

- Ch truy nhp: WCDMA FDD

- Bng tn: 1920 - 1980 MHz; 2110 - 2170 MHz

- rng sng mang: 5 MHz

- Tc tri ph: 3,84 Mbps

- Chuyn giao cng mt tn s: Soft Handover - Chuyn giao gia hai tn s: Hard Handover

- iu khin cng sut: 1,5 KHz

Cc thng s tiu chun cho giao tip v tuyn WCDMA TDD nh sau:

- Ch truy nhp: WCDMA TDD

- Bng tn: 1900 - 1920 MHz; 2020 - 2025 MHz

- rng sng mang: 5 MHz- Tc tri ph: 3,84 Mbps

- iu ch: QPSK

- Chuyn giao cng mt tn s: Hard Handover

- Chuyn giao gia hai tn s: Hard Handover

- iu khin cng sut: ng ln: 200 Hz, ng xung: 800Hz

b. Mng li


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Tun th theo khuyn ngh ca 3GPP - Release 99. Mng li th nghim bao gm:

SGSN

GGSNChuyn mch ATM kt ni SGSN v GGSN

Cc giao din h tr : Iu, Gr, Gn, Gc, Gi...

3.6.2. Gii php th nghim 3G ca Alcatel v Eicson

Mng VMS la chn c hai h thng th nghim 3G ca Alcatel v EricssonC th h thng ca Alcatel s c th nghim ti H ni v h thng ca Ericssoc th nghim ti TP H Ch Minh. Bng 8 di y so snh nhng gii php mAlcatel v Ericsson a ra:

STT NI DUNG ALCATEL ERICSSON GHI CH

1 THIT B TH NGHIM1.1 Phn mng truy nhp (Radio Access Network)

1.1.1

Trm thu pht 3G(Node B)

03 trm BTSEvolium Node Bcu hnh 3 sector

(1 sng mang/1sector). Bao gmy anten,feeder-40m/1 si, ph kin lp t...

02 trm RBS 3202 cu hnh3 sector (1 sng mang/1sector). Bao gm y

anten, ngun, feeder-30m/1si. Trong :+ 1 RBS t cngcontainer 20 feet vi corenetwork + 1 RBS t ti aim khc (remote RBS ttrong container 5 feet).

1.1.2

Trm iu khinthu pht(BSC/RNC)

01 thit b RNC9140, cho php ktni ti a 96 trmthu pht.

01 thit b RNC3810 cuhnh A cho php kt ni tia 8 trmRBS 3202

Alcatel mnhhnERICSSON im ny

1.1.3

H thng qun lmng truy nhp

01 h thng iukhin v tuyn 3GOMC-R A1353-UR chy trn nn mych SUN

01 h thng iu khin vtuyn RANOS chy trnnn my ch SUN420R

im ny,Alcatel vEricssontngng nhau

1.2 Phn mng li (Core Network)1.2.1

MSC/VLR/HLR 01 SSPAlcatel1000Evolium, 01Combined

01MSC/VLR/HLR/AUC tchhp trn h thng AXE 10- APZ212 30 phc v


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RCP/HLR kt ni mng PSTN,PLMN, ISDN

1.2.2

Media Gateway 01 OmniswitchATM Cross-Connect

01 chuyn mch ATM(MGW R1.0 CN 1.5) kt ni gia phn mngtruy nhp RAN, mng liCN v MSC/VLR

1.2.3

Thit b GPRS(GGSN/SGSN)

01 h thng PSCNgm ton b tnhnngSGSN/GGSNca 3G

01 h thng GPRS R3.0

1.2.4

Thit b tin hc bao gm trongtha thun thnghim

01 h thng IP backbone kt nigia cc phn t

1.2.5

H thng qun lmng li.

01 h thng qun lOMC-CS HPB2600. Khng cOMC cho phnchuyn mchmng li PSCN(GPRS)

01 h thng qun lmng li CN-OSS chytrn nn my ch SUN420R.

Ericsson tthn Alcatel im ny

1.2.6

H thng truynhp mng s liu,dch v

Kt ni qua GGSN(GPRS)

01 h thng truy nhpmng s liu dch v (SUN& WINDOW 2000) phcv kt ni

Internet, WAP, Mail...

Ericsson tthn Alcatel im ny.

1.2.7

H thng BillingGateway thu thps liu tnh cc

Khng c 01 h thng BillingGateway th nghimtnh cc

Ericsson tthn Alcatel im ny.

1.3 H thng ngun in1.3.1

H thng acquy d phng

bao gm trongtha thun thnghim, 4 ting backup

48V DC, thi gian backup 1 ting

1.3.2

H thng ngun bao gm trongtha thun thnghim

Km theo container.

2 CC TNH NNG H THNG2.1 Tc truy nhp Tc truy nhp

s liu ti a l384kbps i vichuyn mch gi,64kbps i vichuyn mch knh

Tc truy nhp sliu ti a l 384kbps ivi chuyn mch gi,64kbps i vichuyn mch knh

2.2 S ngi truy nhpInternet, cc dchv s liu ti mtthi im

1000 ngi 10 ngi ti mt thi im Dung lngh thng doAlcatel cungcp ln hn


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2.3 Chuyn giao(handover) giaGSM v WCDMA

Nm trong phmvith nghim

Nm trong phm vi thnghim. (Yu cu phn mmGSM BSS ti thiu l R9.1)

Cc dch v h tr Thoi, truy nhpInternet, wap,truyn s liu

Thoi, truy nhpInternet, wap, truyn sliu

3 TRCH NHIM CA NH CUNG CP THIT B3.1 Lp t, qun l d

n, a vo khaithc full - turn key

bao gm trongtha thun thnghim

bao gm trong thathun th nghim

3.2 o to, hng dns dng

bao gm trongtha thun thnghim

bao gm trong thathun th nghim

3.3 Thi gian thnghim

12 thng 6 thng Alcatel c thigian thnghimdi hn

3.4 Thi gian honthnh lp t

16 tun 1-2 tun

3.5 H tr k thut 4 thng on-site saukhi hon thnh lpt v 8 thng htr t xa

Nm trong phm vi thnghim

Bng - So snh gii php th nghim ca Alcatel v Ericsson.

3.6.3. Phng n trin khai

a) ng k tn s th nghim.

Ph tn WCDMA s dng ca VMS l: Ph tn FDD: 3 sng mang (15 MHz).

+ ng ln (Uplink ) : 1920 MHz - 1935 MHz.

+ ng xung (Downlink ) : 2110 MHz - 2125 MHz.

Ph tn TDD: 1 sng mang (5 MHz). Di tn t 1915 MHz - 1920 MHz.

b) Phm vi th nghim

Khu vc th nghim: ti H Ni v Thnh ph H Ch Minh. Phm vi ph sn3G: lp t ti H Ni vi 03 trm BTS (Node B) cu hnh sector v Thnh ph HCh Minh vi 02 trm RBS (Node B) cu hnh sector.


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c) Phng n trin khai

Ti H ni:

La chn Alcatel l i tc cung cp thit b th nghim 3G. Thi gian th

nghim: 12 thng. Danh mc chnh thit b th nghim (tm nhp ti xut) gm:

+ 03 trm thu pht Node B cu hnh 3 sector.

+ 01 thit b qun l trm gc RNC.

+ 01 h thng OMC-R cho 3G.

+ Thit b o kim tra, thit b d phng, vt t vt liu lp t (DDF, cu cp...).

Ti Thnh ph H Ch Minh:

La chn Ericsson l i tc cung cp thit b th nghim 3G. Thi gian thnghim: 06 thng. Danh mc chnh thit b th nghim (tm nhp ti xut) gm:

+ H thng 3G Core Network (SGSN, GGSN, ATM Switch, RNC).

+ 02 trm thu pht Node B 3201 3x1 cu hnh 3 sector.

+ Ton b thit b th nghim t trong 02 container vi y h thngngun, cquy. Thit b sau thi gian th nghim s ti xut tr li cho pha ci tc.

3.7. Trin khai ln 3G All IP

Thc hin vic nng cp 3G vi dch v d liu tc cao, thi gian thc v di n

Gim st vic nng cp cc dch v a phng tin p dng cc cng ngh nhSmart Antenna, TD-CDMA, kh nhiu, sng v tuyn c iu khin bi phn mmng li ton IP, kin trc m cho vic cung cp dch v.

Tng kh nng tch hp cc loi sng v tuyn khc nhau thanh mt h thng.

Tip tc nng cp nhanh chng cc tiu chun 4G, ch hn na s pht trinca h thng nh hng n vic thit lp mng.

L trnh trin khai nng cp mng Mobifone ln mng li 3G ton IP c thhin r trong hnh v di:


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Hnh 3.5 L trnh pht trin mng li 3G ton IP.

Theo l trnh trn trong nm 2004, mng Mobifone ang th nghim Release 99.- V giao din v tuyn:

Phn mng truy nhp v tuyn mi UTRAN (WCDMA) c thm ccthnh phn RNC v BS.

Vic c nng cp giao din v tuyn hin c ca GSM ln EDGE (E-RAN) hay khng l tu chn ca nh khai thc.

- MSC/VLR nng cp c th x l c cho phn v tuyn bng rng.- cc dch v IN c th c cung cp cho cc mng tm tr ca thu bao

cn trin khai CAMEL.

- Kt ni truyn dn trong mng truy nhp v tuyn WCDMA dung ATM nhmh tr cc loi hnh dch v khc nhau: cc dch v tc khng i cho chuyn mcknh v cc dch v c tc thay i i vi chuyn mch gi.

- Cc nt mng li c chuyn i:

Phn CS phi qun l c thu bao 2G v 3G, i hi thay i trongMSC/VLR v HLR/AuC/EIR.

Phn PS c nng cp t GPRS, thay i SGSN l ln nht.

- Mng cung cp cc loi dch v 3G v dch v ging vi mng 2,5G, huht cc dch v c chuyn sang dng gi khi c nhu cu. V d WAP s chuysang dng chuyn mch gi. Dch v da trn v tr gip truyn d liu gi hiuqu hn.


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T nm 2006:

Release 4 s c trin khai trn mng Mobifone. im khc bit chnh caRelease 4 so vi Release 99 l mng li phn b: MSC c chia thnh MSC server

v MGW. 3GPP Release 4 tch phn kt ni, iu khin v dch v cho min chuymch knh mng li. MSC server c chc nng qun l di ng v iu khin cugi, khng cha ma trn chuyn mch, phn t iu khin MGW. Cn Media Gatewa(MGW) l phn t chu trch nhim duy tr cc kt ni v thc hin chc nng chuymch khi cn. Thoi chuyn mch gi (VoIP): cuc gi chuyn mch knh chuyn sang chuyn mch gi trong MGW.

- u im: khc phc c mt s nhc im ca R99:

- Tch ring phn kt ni cuc gi, phn iu khin v phn dch v cho phmng li chuyn mch knh.

- Ton b lu lng i qua MGW, c qun l bng mt MSC Server tch ri(nng cp t MSC/VLR).

- Phn CN CS c th c t do m rng khi dng nhiu MGW.

- Cho php truyn ti lu lng hiu qu hn nh chuyn mch gi. Mt cugi GSM truyn thng s c thay bng VoIP qua MGW. Phn h a phng tin I

(IMS) c thm vo p ng cc dch v a phng tin trn IP v VoIP.T nm 2007:

Trong nm 2007, mng Mobifone theo k hoch s trin khai Release 5. cim ca Release 5 l thm min IP a phng tin trong mng li (IM), h tr d liv thoi qua IP, trong b sung mt s phn t mi:

CSCF: qun l vic thit lp duy tr v gii phng cc phin truyn a phng tin vi ngi s dng.

MRF: h tr cc chc nng nh cuc gi nhiu bn, cuc gi hi ngh. Ngoi ra, SGSN v GGSN c ci tin so vi R4 l c h tr thoi.MGW vn c chc nng tng t nh R4 v MGW do MGCF iukhin.

- Tn ti duy nht phn chuyn mch gi PS.

- S dng hiu qu v d dng qun l ton b lu lng trn mng 3G vu l IP.


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- Cng ngh truy nhp v tuyn s gim tm quan trng i.Trong tng lai, cmng li 3G s c nhiu cng ngh truy nhp v tuyn khc nhau.

T nm 2009:

Theo k hoc n nm 2009, mng Mobifone s chuyn thnh mng li ton I bng vic trin khai Release 6. Mc ch chun ha ca 3GPP Release 6 l:

Cung cp cc dch v a phng tin IP, pha 2: Nhn tin IMS v qun lnhm.

Hot ng phi hp vi mng LAN v tuyn.

Cc dch v ging ni: Nhn dng ging ni phn b (DSsR).

V c bn phn mng li (Core Nework) trong mng s phi nng cp, cm thnh sau:

MSC/VLR/HLR: 01 MSC/VLR/HLR/AUC tch hp trn h thng AXE10 APZ212 30 phc v kt ni mng PSTN, PLMN, ISDN.

Media Gateway: 01 chuyn mch ATM (MGM R1.0 CN 1.5) kt nigia cc phn mng truy nhp RAN, mng li CN v MSC/VLR.

Thit b GPRS: 01 h thng GPRS R3.0.

Thit b tin hc: 01 h thng IP backbone kt ni gia cc phn t.

H thng qun l mng li: 01 h thng qun l mng li CN-OSS chytrn. nn my ch SUN 420R.

H thng truy nhp mng s liu, dch v: 01 h thng truy nhp mns liu dch v (SUN & Windonw 2000) phc v kt ni Internet, Wap,Mail

H thng Billing Gateway-thu thp s liu tnh cc: 01 h thng BillingGateway th nghim tnh cc. Cc ng dng dch v cung cp:ngoi cc dch v c, mng li 3G ton IP cn cung cp nhng dchv hp dn sau:

in thoi truyn hnh Video Phone tc 64Kbps.

Truy nhp mng s liu Internet vi tc ti a t c l 384Kbps.

Video Streaming vi tc ti a t c l 384Kbps.


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Dch v nh v: dn ch ng.

IVR

Phi hp nhm lm vic

Thanh ton ngn hng

T vn ti chnh

Giao thng

Th trng chng khon

Tr chi.

Bo hiu thi tit.


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KT LUN

Hin nay thng tin di ng VMS MobiFone ang trong giai on t th h thhai sang th h th ba. H thng GSM c th cung cp cc dch v nh thoi truythng, fax, hp th thoi, bn tin ngn, tr trc v roaming quc t Tuy nhiGSM c nhng gii hn nht nh nh s dng chuyn mch knh kt ni vi min thoi c in, tc ti a 14,4 kbps cho mi khe thi gian, mi cuc gi ch th chim mt khe thi gian. Nhu cu truyn s liu ngy cng tng i hi cc nhkhai thc mng c k hoch chuyn i mng GSM sang mng mi. Mng thng tin ng th h ba c trin khai s gip p ng c cc nhu cu v truyn s liu ngi s dng v tc truyn ca mng ny c th t ti 2Mbps. V tin ti trkhai mng All IP.

Trc khi thc hin trin khai mng thng tin di ng th h th ba caMobiFone chng ta cn nghin cu, quy hoch mng. Nghin cu v quy hoch mnl mt cng vic rt quan trng v phc tp do mi trn truyn tin v mi trng mMng 3G hin ang c trin khai mt s nc trn th gii, i vi Vit Nam vcn mi m v ang c nghin cu trin khai sao cho ph hp vi iu kin thc tHn na, cc cng ngh s dng rt phc tp khng th trong mt thi gian ngn th tm hiu ht.

Nhn xa hn na trong tin trnh hi nhp kinh t quc t nc ta, trong tnlai gn nhiu cng ty nc ngoi s tham gia th trng vin thng trong nc. cth cnh tranh thnh cng khi m ca th trng vi nc ngoi, cc doanh nghivin thng nh MobiFone trong nc cn tranh th c hi thu ht khch hng, chilnh th trng. Mun lm c iu th vic khng ngng nng cao cht lnmng li v pht trin dch v gi tr gia tng l mt v kh hu hiu trong tay ccdoanh nghip.

Mt ln na em xin cm n thy c trong khoa in T - Vin Thng Trni Hc Cng Ngh v c bit l thyTrn Ngc Hng gip em hon thnh bi kha lun ny.

Sinh vin :Trn nh Trng


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TI LIU THAM KHO[1] TS.Trnh Anh V -Thng tin di ng - 2006 . Trng i Hc Cng Ngh -

HQGHN.

[2] TS.Nguyn Phm Anh Dng.Thng tin di ng . Hc Vin Cng Ngh BuChnh Vin Thng, 2005.

[3] PGS.TS.Nguyn Bch Ln. Nghin cu tin kh thi d n thng tin di ng th h th ba IMT-2000 ca tng cng ty, 2001.

[4] Nguyn Hi Yn (Dch). H thng thng tin di ng trong tng lai. Hc VinCng Ngh Bu Chnh Vin Thng, 2001.

[5] Nguyn Xun Vinh.Chin lc thnh cng trong th trng Vin thng

cnh tranh. Nh xut bn Bu in, H Ni, 2004.[6] Tp ch Bu chnh Vin thng v Cng ngh thng tin,B Bu chnh Vin

thng, thng 8/2005, 10/2005, 02/2006, 4/2006, 5/2006.

[7] Tng Cng ty Bu chnh vin thng Vit Nam. nh hng pht trin Buchnh vin thng Vit Nam n nm 2015.H Ni, 2005.

[8] Clint Smith and Daniel Collins.3G Wireless Networks, McGraw-Hill, 2002.

[9] Harri Holma and Anti Toskala.W-CDMA for UMTS , Jonh Wiley & Sons, 2000.

[10] Dr.Ramjee Prasad anh other.Third Generation Mobile CommunicationSystems, Artech House, 2000.

[11] Dr.William C.Y.Lee.Mobile Communication Design Fundamental , John Wiley$ Sons, 1996.

[12] John Roberts, Pamela Morrison and Charlie Nelson, Implementing a Pre- Launch Diffusion Model: Measurement and Management Challenges of theTelstra Switching Study,Marketing Science, 2004.

[13] Porter, M.E.Competitive Strategy Techniques for Analyzing Industriesand CompetitorsThe Free Express 1998

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