Chuong 1new

8/19/2013

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HC VIN CNG NGH BU CHNH VIN THNG

BI GING MN

THNG TIN DI NG

THNG TIN GING VINGing vin : TS. V Trng ThnhE-mail: [email protected] mn: V tuyn Khoa VT1

08-2013

BI GING MNTHNG TIN DI NG

www.ptit.edu.vn Copyright: ThS. Phm Th Thy HinB MN: V TUYN - KHOA VT1 2

GII THIU MN HC Tng lng kin thc : 60 tit (4vht) Phn b kin thc:

L thuyt: 32 tit. Bi tp/Tiu lun: 8 tit Thc hnh: 4 tit. T hc: 16 tit

Mc tiu:Cung cp cho sinh vin nhng kin thc v cc h thng thng tin di ng.



CNG MN HC Chng 1: Tng quan thng tin di ng Chng 2: Cc s x l tn hiu a phng

tin v dch v trong cc h thng thng tin di ng

Chng 3: H thng TTD GSM/GPRS Chng 4: Giao din v tuyn ca WCDMA

UMTS Chng 5: Min chuyn mch gi ca UMTS Chng 6: Giao din v tuyn cdma2000 1x

v 1xEVDO



CNG MN HC Chng 7: Min chuyn mch gi ca

cdma2000 1x Chng 8: Giao din v tuyn 3G+ HSPA Chng 9: Giao din v tuyn LTE Chng 10: LTE Advance Chng 11: Kin trc mng v cc giao thc

ca 4G LTE Chng 12: H thng khai thc v bo dng

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TI LIU THAM KHO [1]. Nguyn Phm Anh Dng, Thng tin di ng, bai ging T11/2012 [2]. Nguyn Phm Anh Dng, Thng tin di ng, Nh xut bn B,

2002 [3]. TS. Nguyn Phm Anh Dng, "Thng tin di ng th h ba", Nh

xut bn Bu in, 2004 [4]. TS. Nguyn Phm Anh Dng, "cdmaOne and cdma2000", Nh

xut bn Bu in, 2005 [5]. Mouly. M. and Pautet. M., The GSM for Mobile Communications,

Published by Authors, 1992 6. Redl. S.M. anh others, An introduction to GSM, Artech House,

1995 7. PhDr, Vijay K. Gar and others, IS-95 and cdma2000, Prentice Hall

PTR, 2000



TI LIU THAM KHO 8. Harri Holma and Anti Toskala, W-CDMA for UMTS,

Jonh Winley and Sons, 2000 9. Dr. Ramjee Prasad and others, Third Generation Mobile

Communication Systems, Artech House, 2000. 10. Clint Smith, Danniel Collins, 3G Wireless Network,

Mcrawhill, 2002 11. 3GPP TR 25.913 V7.3.0, Requirements for Evolved

UTRA (E-UTRA) and Evolved UTRA(EUTRA)(Release 7), 3/2006

12. Dr. Lee, HyenonWoo, 3GPP LTE & 3GPP2 LTE Standarzation, Samsung Electronics, 6/2006.

13. Dr. Stefal Parkvall, Long-Term Evolution-Radio Access, Ericsson Research, 11/2005



nh gi

Chuyn cn: 10% (ngh 2 tit tr 1 im)(Ngh t 12 tit tr ln khng c d thi ht mn)

Kim tra: 10% (3 bi, vng nhn im 0) Tiu lun: 10% Thc hnh: 10% (1 bi, vng nhn im 0)

(Vng thc hnh khng c d thi ht mn)

Thi kt thc hc phn: 60%



Chng 1: Tng quan thng tin di ng Tng quan v cc h thng thng tin di ng. Kin trc chung ca mt h thng thng tin di ng

Kin trc GSM Kin trc GPRS Kin trc 3G WCDMA UMTS IP di ng Kin trc 4G LTE/SAE Cu hnh a l ca h thng TTDD.

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Tng quan v TTDD Lch s pht trin

Ra i 1920, s dng cho cnh st M. 1960, xut hin h thng in thoi di ng u tin: t

tin li, dung lng rt thp 1983, h thng AMPS v NMT

H thng TTD th h th nht H thng tng t, song cng, iu tn a truy nhp: FDMA (Frequency Division Multiple Access) Nhc im:

Dung lng thp, ph tn hn ch Nhiu tch ly v phainh Bo mt km Khng pht trin cc dch v mi Khng tng thch cc h thng



Lch s pht trin (2) 1991, h thng GSM (Global System for Mobile communications)

H thng TTD th h th hai chu u H thng s, bng tn 900MHz a truy nhp TDMA (Time Division Multiple Access) H thng bng hp

1990s, h thng IS-95 (Interim Standar CDMA Qualcom) Th h hai M v chu a truy nhp CDMA (Code Division Multiple Access)

2000, chun IMT-2000 (Internatinal Mobile Communications, ITU-R)

H thng TTD th h ba Kt ni cc h thng TTD trn ton cu S dng k thut FDMA, TDMA, CDMA Cht lng dch v tng ng mng c nh a phng tin bng rng (ti 2Mb/s) H thng xut: cdma2000 v W-CDMA



Lch s pht trin (3) H thng 4G LTE (2010) Vit Nam, 1993 a vo h thng GSM: GSM GPRS

EDGE Nh khai thc: VMS (Vietnam Mobile Services) Mobifone Nh khai thc: GPC Vinaphone Nh khai thc: Viettel Viettel

Cc mng da trn cng ngh CDMA: cdma2000 1x cdma2000 EV-DO

Nh khai thc SPT (Saigon Post and Telecommunications) Sfone

Nh khai thc EVN E-mobile Nh khai thc HT HT mobile (Hin ang chuyn sang cng

ngh GSM) W-CDMA (2009)

Nh khai thc VMS, GPC, Viettel



Khi nim Thng tin di ng l hnh thc thng tin vi dch v

cung cp trc tip n khch hng qua ng truyn kt ni v tuyn m bo thng tin mi lc, mi ni.

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Yu cu c bn S dng hiu qu bng tn c cp pht

Hn ch ca bng tn v tuyn, knh v tuyn cung cp trc tip n ngi dng

m bo cht lng truyn dn Khc phc nh hng ca mi trng h, m ha tit kim bng

tn

m bo an ton thng tin Nhn dng thu bao (SIM Subscriber Identify Module) Mt m ha thng tin

m bo lin tc thng tin Khai thc dch v mi, phi thoi Thit b u cui gn nh, tiu th t nng lng


www.ptit.edu.vn Copyright: ThS. Phm Th Thy HinB MN: V TUYN - KHOA VT1 14Qu trnh pht trin ca cc nn tng thng tin di ng t th h mt n th h ba



Cc th h 1G 2G 2.5 G 3G

Th d h thng NMT, TACS, AMPS,

NTT

TDMA IS-136, GSM, CDMA IS-95, HSCSD, PDC

GPRS, CDMA2000-1X, EDGE, cdma20001xEVDO

cdma2000-3X, cdma2000-1X EV-DV, UMTS, Enhanced EDGE

Cng ngh thoi/s liu

Thoi CS*, S liu quay s CS

Thoi CS, S liu quay s CS

Thoi CS, S liu PS* (cc dch v IP, Internet)

Thoi CS/PS, s liu CS v s liu PS tc cao (a phng tin v cc tt c cc ty chn IP)

Tc s liu l thuyt

2.49.6 Kbps

9.6 -19.2 Kbps 28.8 Kbps

9.6 -144 Kbps; 70473 Kbps

144 Kbps -2 Mbps; 144 Kbps-2 Mbps; 256 Kbps -2.4 Mbps

Thng lng s liu trung bnh k vng

2.09.0 Kbps

9.019.0 Kbps 9.0300 Kbps; 601000 Mbps;

Cng ngh truy nhp v tuyn

FDMA TDMA, CDMA TDMA, CDMA TDMA, CDMA, W-CDMA, TD-SCDMA

Mt s nt chnh ca cc nn tng cng ngh thng tin di ng



Qu trnh pht trin cc cng ngh TTD n 4G

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Cu trc chung ca mt h thng thng tin di ng



Kin trc mng GSM

SS7BTS

BSC MSCVLR

HLR AuC

GMSC

BSS

PSTN

NSS

AE

CD

PSTNAbis

B

H

MS



Kin trc mng GSM

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MS (Mobile Station: trm di ng): L thit b cm tay thuc s hu ca ngi s dng Chc nng:

+ Giao din v tuyn vi mng: Thu, pht, x l tn hiu + Giao din vi ngi dng: Loa, mn hin th, bn phm + Giao din vi thit b khc: My tnh, fax

International Mobile Equipment Identity (IMEI)

Mobile Equipment

MS= ME + SIMMS= ME + SIM

International Mobile Subscriber Identity (IMSI) Subscriber Identity Module



SIM

SIM

International Mobile Subscriber

Identity (IMSI)

Temporary Mobile Subscriber Identity

(TMSI)

Location Area Identity (LAI)

Subscriber Authentication Key (Ki)

SIM



BSS: H thng con trm gc

BSCBSC

TC/SMTC/SMBSS

MSC

BTSBTS

BSCBSC

TC/SMTC/SMBSS

MSC

The Base Station

Controller BSC

The Base Transceiver

Station BTS

The Trans-coder TC

and Sub multiplexer

(SM)



BTS iu khin lu lng v tuyn gia MS v n thng qua giao din Um thit b thu pht, anten, TRAU(TRanscoder/Adapter Rate Unit ): m

ha v gii m, thch ng tc ) BSC: qun l ti nguyn v tuyn thng

qua lnh iu khin t xa vi BTS v MS n nh, gii phng knh v tuyn Qun l chuyn giao (handover)

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SS: H thng con chuyn mch MSC (Mobile Services Switching Center: trung tm chuyn mch

cc dch v di ng): iu phi vic thit lp cuc gi MSC giao din vi mng ngoi l MSC cng (GMSC)

Vai tr: Kt ni vi cc mng vin thng khc cho dch v

S dng kh nng truyn ti ca mng ngoi (s liu, bo hiu)

C chc nng thch ng vi mng khc IWF (InterWorking Function): Thch ng giao thc v truyn dn vi cc mng

PDN (Packet Data Network) PSTN (Public Switched Telephone Network)

ISDN (Intergrated Service Digital Network)

C th l thit b ring hay tch hp chc nng trong MSC



HLRHome Location Register: B ghi nh v thng tr Lu tr cc thng tin ca thu bao

D liu thu bao V tr hin thi ca thu bao

L mt my tnh ng ring, lu tr c s d liu ca mng

VLRVisitor Location Register: B ghi nh v tm tr Lu tr tm thi

S liu ca cc thu bao hin ang trong vng phc v ca MSC V tr chnh xc ca thu bao

Chc nng lin kt vi MSC



OS Operation System: H thng khai thc Khai thc, bo dng tp chung cho mng TTD Xy dng trn nguyn l TMN

(Telecommunication Management Netwok) Kt ni iu khin vi cc phn t ca mng: MSC,

BSC, HLR, VLR H thng my ch OMC (Operation and Mainternance

Center)



AUC Authentication Center: Trung tm nhn thc Qun l cc thng tin nhn thc, kho b mt cho thu bao. Thng

tin b mt cng c lu tr ti MS.(IMSI: International Mobile Suscriber Identity) Chc nng kt hp vi HLR, MSC hoc c lp

EIR Equipment Identity Register: B ghi nhn dng thit b Qun l thit b di ng: Cc d liu lin quan n thit b(IMEI: Internatinal Mobile Equipment Identity) Ni vi MSC qua ng bo hiu kim tra s c php ca MS

DMH Data Message Handler: B x l bn tin s liu Thu thp, x l cc d liu v cc

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Gf

GiGn

Gc

Gp

Gs

MSC/VLR

Gr

SGSN

Gd

SMS-GMSCSMS-IWMSC

GGSN

EIR

SGSN

Gn

GPRSBackbone

ATM/DDN/ISDN/Ethernet, etc

CN-PSGGSN

GiCG

Gb

SS7

HLR

Ga

Intranet/InternetFirewall

RADIUS

WAP Gateway

Other PLMN

BTS

BSCBSS

AbisPCU

Gb

BTS

BSCBSS

AbisPCU

X.25

DNS BG

MS

MS

KIN TRC GPRS



SS7BTS

BSC MSCVLR

HLR AuC

GMSC

BSS

PSTN

NSS

AE

CD

PSTNAbis

B

H

MS

BSS Base Station SystemBTS Base Transceiver StationBSC Base Station Controller

NSS Network Sub-SystemMSC Mobile-service Switching ControllerVLR Visitor Location RegisterHLR Home Location RegisterAuC Authentication ServerGMSC Gateway MSC

SGSN Serving GPRS Support NodeGGSN Gateway GPRS Support Node

GPRS General Packet Radio Service

IP

2G+ MS (voice & data)

PSDNGi

SGSN

Gr

Gb

Gs

GGSN

Gc

Gn

2G MS (voice only)KIN TRC GSM/GPRS



MS: bao gm TE v MT Ch A: khai thc c chuyn mch knh v chuyn mch gi Ch B: MS hoc ch PS hoc ch CS (khng ng thi c hai) Ch C: MS thc hin mi ln 1 dch v

BSS: x l c lu lng CS v PS S liu CS c chuyn ti MSC S liu PS c chuyn ti SGSN

HLR: ging nh trong GSM, s dng xc nh xem thu bao GPRS c a ch IP tnh hay ng

SGSN: nt h tr GPRS phc v x l lu lng cc gi IP n v t MS ng nhp vo vng phc v ca

n nh tuyn cc gi nhn c v gi i



GGSN: kt ni vi cc mng chuyn mch gi bn ngoi (Internet, cc mng ring..) Giao din gia GPRS backbone v cc PDN ngoi. PDP Conversion and context management Qun l gn a ch IP nh tuyn gi n/t SGSN Tp hp thng tin v cc

AuC: hot ng ging nh mng GSM

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KIN TRC UMTS R3



(tip)



UE: Thit b ngi s dng Cc u cui: h tr hai giao din

Giao din Uu: nh ngha lin kt v tuyn, m nhim ton b kt ni lp vt l vi mng UMTS

Giao din Cu gia UMTS IC card (UICC) v u cui UICC (UMTS IC card ) USIM:

modul nhn dng thu bao c ci nh mt ng dng trn UICC

cha cc hm v s liu cn nhn dng v nhn thc thu bao trong mng UMTS



UTRAN: Mng truy nhp v tuyn UMTS Chc nng:

Lin kt gia ngi s dng v mng li m bo cc cuc truyn thng UMTS trn v

tuyn v iu khin chng Cc giao din ca UTRAN

Giao din Iu: gia UTRAN v CN IuPS cho min chuyn mch gi, kt ni RNC n

MSC/VLR IuCS cho min chuyn mch knh, kt ni RNC n

SGSN Giao din Uu: gia UTRAN v thit b ngi s

dng

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UTRAN: Mng truy nhp v tuyn UMTS (tip) Cc phn t trong UTRAN

RNC: qun l 1 hay nhiu trm gc L im truy nhp dch v m UTRAN cung cp cho CN Bo v s b mt v ton vn Cc chc nng logic: RNC phc v, RNC tri, RNC iu

khin Nt B:

Thc hin nhim v kt ni v tuyn vt l gia n v u cui

iu khin cng sut vng trong



CN: Mng li c chia lm 3 phn

Min PS: m bo cc dch v s liu cho ngi s dng Min CS: m bo cc dch v in thoi n cc mng khc Min HE

Cc phn t trong mng li SGSN: nt chnh ca min chuyn mch gi, chu trch

nhim cho tt c cc kt ni PS ca tt c cc thu bao, lu 2 kiu d liu:

Thng tin ng k thu bao: IMSI, P-TMSI, cc a ch PDP Thng tin v tr thu bao: RA, s VLR, cc a ch ca tng GGSN

GGSN: l SGSN kt ni vi cc mng s liu khc, lu c hai kiu s liu: thng tin thu bao v thng tin v tr.



BG l cng gia min PS ca PLMN vi cc mng khc, c chc nng m bo an ninh mng

VLR: ging nh HLR, n cn lu gi thng tin v cc dch v thu bao c cung cp: IMSI, MSISDN, TMSI, LA hin thi, s MSC/SGSN

MSC: thc hin cc kt ni CS gia u cui v mng Thc hin chc nng bo hiu v chuyn mch cho cc thu bao Ging vi MSC trong GSM nhng c nhiu kh nng hn

GMSC: chu trch nhim thc hin cc chc nng nh tuyn n vng c MS

HLR: IMSI, t nht 1 MSISDN, a ch PDP, thong tin v SGSN v VLR

AuC, EIR Cc mng ngoi: PLMN, PSTN, ISDN, internet Cc giao din

Uu: ni nt B vi u cui Iu: kt ni CN v UTRAN: IuPS, IuCS, IuBS



Kin trc mng 3G UMTS R4

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MSC MSC server: cha cc phn mm iu khin cuc

gi, qun l di ng MGW (cng a phng tin): cha ma trn chuyn

mch Bo hiu iu khin cc cuc gi chuyn mch knh c

thc hin gia RNC v MSC server. ng truyn cho cc cuc gi chuyn mch knh c thc

hin gia RNC v MGW. S dng RTP(Real Time Transport Protoco: Giao thc truyn ti

thi gian thc l) trn IP.

Kin trc mng 3G UMTS R4 (tip)



Giao thc iu khin gia MSC server hoc GMSC server vi MGW l giao thc ITU H.248: Giao thc iu khin cng cc phng tin (MEGACO: Media Gateway Control

Giao thc iu khin cuc gi gia MSC server v GMSC server c th l mt giao thc iu khin cuc gi bt k: giao thc iu khin cuc gi c lp vt mang (BICC: Bearer Independent Call Control)

HLR (HSS:Home Subscriber Server: Server thu bao nh). HSS v HLR c chc nng tng ng, ngai tr

giao din vi HSS l giao din trn c s truyn ti gi (IP chng hn) trong khi HLR s dng giao din trn c s bo hiu s 7.



Kin trc mng 3G UMTS R5



Cc phn t mi CSCF qun l vic thit lp, duy tr v gii phng cc phin a

phng tin n v t ngi s dng. chc nng : phin dch v nh tuyn. CSCF hot ng nh mt i din Server /h tch vin.

Chc nng ti nguyn a phng tin (MRF) l chc nng lp cu hi nghi c s dng h tr cc tnh nng nh t chc cuc gi nhiu pha v dch v hi ngh .

Cng bo hiu truyn ti (T-SGW) l mt cng bo hiu SS7 m bo tng tc SS7 vi cc mng tiu chun ngoi nh PSTN. T-SGW h tr cc giao thc Sigtran.

Cng bo hiu chuyn mng (R-SGW) l mt nt m bo tng tc bo hiu vi cc mng di ng hin c s dng SS7 tiu chun.

MGW thc hin tng tc vi cc mng ngoi mc ng truyn a phng tin. MGW c iu khin bi Chc nng cng iu khin cc phng tin (MGCF). Giao thc iu khin gia cc thc th ny l ITU-T H.248.

MGCF cng lin lc vi CSCF qua giao thc SIP

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KIN TRC cdma2000

A1/A2(giao din A)

A10/A11(giao din R-P)

Giao din v tuyn RAN

PSTNSIM

ME

BTS BSC

BTS

BTS

BSC

PCF

MSC/ VLR GMSC

HLR/AuC

AAA khch

EIR

InternetPDSN/FA

PiUIM

Abis

BTS PCF

AAA mi gii

AAA nh

HA

RADIUS/DIAMETER

F D

c

A8/A9

A8/A9

A3/A7

Mng cung cp dch v truy nhp khch

MS

UiUr



Chc nng cc phn t MS thc hin c dch v CS ln MIP. i vi MIP,

MS phi: H tr PPP C th hot ng nh mt MIP MN, h tr h lnh FA v

NAI Tng tc vi RAN v mng li nhn cc ti nguyn

mng cho vic trao i gi Ghi nh trng thi ca ti nguyn v tuyn (tch cc, ch,

ng)



(tip) Mng truy nhp v tuyn RAN BTS: iu khin lu lng v tuyn gia MS

v chnh n thng qua giao din v tuyn BSC: m bo iu khin v qun l i vi mt

hay nhiu BTS. BSC trao i bn tin vi c BTS v MSC.

PCF: Chc nng iu khin gi Nh m cc gi v yu cu RAN tm gi MS Thu thp v gi thng tin thanh ton n PDSN



(tip) RAN h tr thm cc dch v PS

Chuyn i tham kho nhn dng client di ng vo mt nhn dng lin kt duy nht thng tin n PDSN

Nhn thc MS cho php truy nhp dch v Qun l kt ni lp vt l n client di ng Duy tr trng thi cho php kt ni i vi dch v gi gia

RAN v MS Nh m cc gi n t PDSN khi cc ti nguyn cha c

hoc cha d h tr dng goi n t PDSN Chuyn tip cc gi gia MS v PDSN

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(tip) Mng nh cung cp dch v truy nhp khch

MSC/VLR thc hin nhim v chuyn mch knh.

VLR cha cc chi tit tm thi v MS lm khch ti MSC hin thi v cha TMSI

HLR mang thng tin v thu bao trong vng GMSC tng ng

AuC m bo cc thng s cn thit cho nhn thc v mt m gia MS v BTS



(tip) AAA (Authenthication, Authorization and

Accounting): Nhn thc, trao quyn v thanh ton AAA server nh: t trong mng IP nh, cha l lch thu

bao (thng tin v ng k QoS) ca ngi s dng AAA server khch: trong mng ca nh cung cp dch v:

ch cha thng tin tm thi lin quan n cc phin cn ang c s dng bi ngi s dng

AAA server mi gii: c s dng truy nhp trung gian v mng IP nh



(tip) PDSN (Packet Data Serving Node: Nt phc v s liu

gi) l thc th cung cp chc nng giao thc Internet vi mng di ng. PDSN thit lp, duy tr v kt cui cc phin ca lp lin kt

vi MS. PDSN nh tuyn cc datagram IP n cc mng s liu ngoi. PDSN c th hot ng nh mt MIP FA (MIP Foreign

Agent: tc nhn MIP ngoi) trong mng di ng. PDSN tng tc vi AAA m bo s h tr nhn thc, trao

quyn v thanh ton. PDSN c th giao tip vi mt hay nhiu mng IP hoc cng

cng hoc Intranet m bo truy nhp mng IP.



(tip) HA l mt router t ti mng IP nh ca MS. N

ng k PDSN /FA cho mt MS. ng k PDSN cho MS c thc hin bng CoA, y l mt a ch IP cu PDSN

Cc yu cu i vi HA Duy tr ng k ca ngi s dng v chuyn cc gi n

PDSN Thit lp tunnel (an ninh IP ty chn) n PDSN/FA H tr n nh a ch HA ng n nh a ch nh ng (ty chn) cho MS

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IP di ng (MIP) MIP (Mobile Internet

Protocol) cho php gi quyt vn ngi s dng trong mng di ng di chuyn ra khi mng nh ni ngi ny ng k a ch IP

Hot ng (hnh v)



Kin trc mng 4G LTE/SAE

Kin trc E-UTRAN



Cc phn t logic Thit b ngi dng: UE Mng truy nhp v tuyn UMTS pht trin (E-

UTRAN): eNodeB Chu trch nhim iu khin tt c cc chc nng lin

quan n v tuyn Hot ng nh mt cu ni 2 lp gia UE v EPC Chu trch nhim qun l ti nguyn v tuyn Qun l di ng

Mng li gi pht trin EPC Thc th qun l di ng MME: nt iu khin x l

qu trnh bo hiu gia UE v mng li: cc th tc an ninh, x l phin gia UE n mng, qun l di ng khi UE ri



Mng li gi pht trin EPC Cng phc v S-GW:

L im kt cui ca giao din s liu gi ti E-UTRAN ng vai tr nh l mt neo di ng ni ht cho cc knh

mang s liu khi UE chuyn ng gia cc eNodeB Gi thng tin v cc knh mang ni trn khi UE ri Nh m tm thi s liu ng xung khi MME khi xng

tm gi UE thit lp knh mang Tnh cc v chn theo lut

Cng mng s liu gi P-GW L im kt cui ca giao din s liu gi ti PDN

Chc nng cc quy tc chnh sch v tnh cc PCRF Quyt nh iu khin chnh sch cng nh iu khin cc

chc nng tnh cc Server thu bao nh HSS: cha s liu ng k ca

ngi dng, thng tin v cc PDN, s nhn dng MME Min phc v

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Cu trc a l ca h thng TTD

Phn chia theo vng mng

Phn chia theo vng phc v

Phn chia theo vng nh v

Phn chia theo

PLMN service area

......

Vng mngVng mngVng mngVng mngVng phc v MSC/SGVng phc v MSC/SGVng phc v MSC/SGVng phc v MSC/SG

SN...SN...SN...SN...Vng nh v./VnVng nh v./VnVng nh v./VnVng nh v./Vn

g nh tuyn..g nh tuyn..g nh tuyn..g nh tuyn..

Vng mangVng mangVng mangVng mang Vng mngVng mngVng mngVng mngVng phc v MSC...Vng phc v MSC...Vng phc v MSC...Vng phc v MSC...

Vng nh v...Vng nh v...Vng nh v...Vng nh v...



Cu trc a l ca h thng TTD Vng mng di ng

i din bi GMSC/GGSN, l vng qun l ca GMSC/GGSN Cuc gi n mng di ng phi qua

GMSC/GGSN

Tng i trung k vo cho mng PLMN

Mt PLMN gm nhiu vng mng



Cu trc a l ca h thng TTD Vng phc v

c phc v bi mt MSC/VLR (SGSN)

nh tuyn cuc gi cho thu bao ang nm trong vng phc v

Lu tr thng tin thu bao ti VLR

Thng tin ng k, cc dch v ca thu bao

Thng tin v v tr thu bao



Cu trc a l ca h thng TTD Vng nh v LA/Vng nh tuyn RA/Vng eo bm TA

L phn vng phc v trong MS c th di chuyn t do m khng cn cp nht v tr cho MSC/VLR.

LA bao gm mt s thuc 1 hay nhiu BSC. Nhn dng vng nh v LAI (Location Area Identity): L v tr c

th nht ca MS c th nh tuyn cuc gi.

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Cu trc a l ca h thng TTD :

L mt vng ph v tuyn c mng nhn dng bng nhn dng ton cu (CGI: Cell Global Identity).

Trm di ng nhn dng bng m nhn dng trm gc (BSIC: Base Station Identity Code).



Cu trc a l ca h thng TTD Ph sng t ong

Mi c ph sng bi 1BTS BTS c n nh mt phn trong tng s knh c nh ca ton b

h thng Cc BTS gn nhau c n nh cc nhm knh khc nhau to thnh

mt mu Xp xp cc mu c th phn b cc knh v tuyn hu hn trn ton

b vng a l Vng ph sng ca c dng t ong (Cell) Khi dung lng yu cu tng

Tng s BTS, gim c ly ph sng Ti s dng cc knh c cp c nh trn ton b min phc v S dng phng php d: Anten vi chiu cao, cng sut khc

nhau Vng ph ln cho cc MS di chuyn tc cao Vng ph nh cho cc MS di chuyn tc thp



Cu trc a l ca h thng TTDPhng php d



Cu trc a l ca h thng TTD Mu :

v hng ngang (Omnidirectional) phn on (Sectorized)

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Phn chia theo vng nh tuyn (RA)



LAI

Location Area Identification

The LAI is the international code for a location area.

MCC: Mobile Country CodeIt consists of 3 digits .For example: The MCC of China is "460"

MNC: Mobile Network CodeIt consists of 2 digits .For example: The MNC of China Mobile is "00"

LAC: Location Area CodeIt is a two bytes hex code.The value 0000 and FFFF is invalid.

For example: 460-00-0011

MCC MNC LAC



CGI

The CGI is a unique international identification for a cellThe format is LAI+CILAI: Location Area IdentificationCI: Cell Identity. This code uses two bytes hex code to

identify the cells within an LAI.For example : 460-00-0011-0001

CGI: Cell Global Identification



BSIC

NCC: PLMN network color code. It comprises 3 bit. Itallows various neighboring PLMNs to bedistinguished.

BCC: BTS color code. It comprises 3 bit, used todistinguish different cells assigned the samefrequency!

NCC BCC

BSIC

BSIC (Base Station Identification Color Code)

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MSISDN

CC: Country Code. For example: The CC of China is "86".NDC: National Destination Code. For example: The NDC of

China Telecom is 139, 138, 137, 136, 135.SN: Subscriber Number. Format:H0 H1 H2 H3 ABCDExample: 86-139-0666-1234

CC NDC SNNational (significant)

Mobile numberMobile station international

ISDN number



IMSI

MCC: Mobile Country CodeIt consists of 3 digits .For example: The MCC of China is "460"

MNC: Mobile Network CodeIt consists of 2 digits .For example: The MNC of China Telecom is "00"

MSIN: Mobile Subscriber Identification Number. H1H2H3 S ABCDEFFor example: 666-9777001

NMSI: National Mobile Subscriber IdentificationMNC and MSINform it together.

For Example of IMSI : 460-00-666-9777001

Not more than 15 digits

3 digits 2 digits

IMSI

MCC MNC MSINNMSI



IMEI

TAC FAC SNR SP

IMEI

IMEI: International Mobile Station Equipment Identification

TAC: Type approval code, 6 bit, determined by the type approval centerFAC: Final assembly code, 2 bit, It is determined by the manufacturer.SNR: Serial number, 6 bits, It is issued by the manufacturer of the MS. SP: 1 bit , Not used.Check the IMEI in your MS : *#06#

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