kiến trúc gsm & gprs

7/30/2019 kin trc GSM & GPRS

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2/25

Ni dung

Qu trnh pht trin thng tin di ng

Kin trc GSM

Kin trc GPRS


3/25


4/25

NMT

TACS

AMPS

GSM

TDMA

(IS-136)

cdmaOne

(IS95-A)

CDPD

PDC/

PDC-P

GSM+

GPRS

TDMA

IS136+GPRS

EDGE/GPRS

CDMA

(IS95-B)

WCDMA/HSPA

TD-SCDMA

WCDMA/TDD

WCDMA/FDD

ETSI UMTS/W-CDMA

EDGE tng cng/GPRS

cdma20003x(5MHz)

cdma20001x(1,25MHz)

cdma20001xEV-DO

cdma20001xEV-DV

ARIB WCDMA (Nht)

1985 1989 1995 2001 2003 2004+

1G 2G 2,5G

3G

L trnh tin ha cc h thng TTD


5/25

AMPS : Advanced Mobile Phone Service

TACS : Total Access Communication SystemNMT : Nodic Mobile Telephone

PDC : Personal Digital Cellular: H thng t ong s c nhn.PDC-P : PDC-Packet

GSM : Global System for Mobile Telecommunications

CDPD : Cellular Digital Packet Data

GPRS : General Radio Packet Service

EDGE : Enhanced Data Rate for GSM Evolution

WCDMA : Wideband Code Division Multiple Access

HSPA : High Speed Paket Access

UMTS : Universal Mobile Telecommunications System

cdma20001xEV-DO : cdma20001xEvolution-Data Only (Optimized)

cdma20001xEV-DV : cdma20001xEvolution-Data and Voice

FDD : Frequency Division Duplex

TDD : Time Division Duplex

L trnh tin ha cc h thng TTD


6/25

H thng TTD c coi l 3G nu p ng cc

yu cuca ITU:Hotngtrongphtncnnh cho cc dchv 3G

Cung cp cc dch v s liu mi cho ngi s dng (gm a

phngtin,clpvicng ngh giao din v tuyn)

Htrtruyndnsliu: (1) 144 kbps cho ngisdngdi ng

tc cao; (2) ln n 2Mbps (t nhtl l thuyt) cho ngis

dngcnhhoc di ngtcthp

Cung cpdchvsliu gi (khng da trn ktniCS nmng

sliu gi bm sinh)

mbo tnh clpgiamngli v giao din v tuyn.

H thng 3G


7/25

Kin trc GSM

2


8/25

Kin trc GSM

IMSI :International Mobile Station Identity TMSI :Temporary Mobile Station Identity

LAI : Location Area Identity BSS : Base Station Subsystem

BTS : Base Transceiver Station BSC : Base Station Controller

MSC : Mobile Switching Center GMSC : Gateway MSC

HLR : Home Location Register VLR :Vvisitor Location Register

AuC : Authentication Center EIR :Equipment Identity Register

SIM

ME

BTS

BTS

BSC

BTS

BTS

BSC

BSS

BSS

VLR HLR AuC EIR

MSC

Mng bohiu s 7

SMS-GMSC

PTSN

ISDNCSPDN

PSPDN

SS

Trm di ng(MS)

H thng con trm gc(BSS)

H thng con chuyn mch(SS)

Um Abis A


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10/25

Khi chc nng GSM

SIM l mtthitb an ninh chattc cc thng tin cnthit v gii thutnhn thc thu bao cho mng. Mun

vy,SIMcha CPU v ba kiunh: (1) ROMchahiu

hnh, chngtrnh cho ngdngGSM v cc giithutanninh A3 v A8; (2) RAMphcvthchin ccgiithutv

nhm cho truyndnsliu; (3) EEPROMchasliu

nhycmnhKi (kha bmt),snhndng thu bao ding IMSI, s quay, bn tin ngn, thng tin vmng,

thng tin v thu bao nhsnhndng thu bao tm thi

TMSI, nhndngvng nhv LAI.


11/25

BSS baogmmtsBTS v BSC.

BTSiukhinlulngv tuyngia MS v chnh n

thng qua giao din v tuyn Um.

SScha MSCthchinttc cc ngdngcnthit

nh tuyn cucgi n hoc t ngis dng v mng

inthai khc nh: ISDN, PSTN.

HLRchattc cc thng tin vthu bao trong vng ca

GMSC.

VLRcha cc chi tittmthivMS lm khch ti MSC

hinthi v cngcha TMSI.

Khi chc nng GSM


12/25

Khi chc nng GSM

AuC c t ti HLR l mt trong nhng ni pht i

thng san ninh quan trngnht,mbomi thng s

cn thit cho nhn thc v mtm ha gia MS v BTS.

TMSI cho php ngnngalytrm thng tin vti nguyn

hp php v theo di v trcangisdng.

EIR ghi linhndngsmy ca MEnhm chngmt

cp my. Ni mtcch khc EIR chasseri my cami

MS v nhdusmy bmthocbncp m hthng

skhng cho php


13/25

Cuc gi t PSTN n MS khch

(STP)

(SCP)

PSTNPLMN

(SSP)(SSP)BSSMS

PLMN(Home)(Visitor)

(STP)

HLR

GMSC

(SSP)

VMSC

VLR

IAM

6

2

Where is the subscriber?

5Routing Info

3Provide Roaming

4

SCP

1

IAM

514 581 ...

ISUPMAP/ IS41 (over TCAP)

Signalingover SS7


14/25

Kin trc GPRS

3


15/25

EIRMSC/

VLR

SMS-GMSC

SMS-IWMSC

HLR/

AuC

MT BSS SGSN GGSNInternet

SGSN

Um Gb

Gf Gs Gd Gr Gc

GiGn

Gp

Mng li

TE

Kin trc GPRS

GPRS s dng limng truy nhp v tuyn ca GSM truyn s liu gi bng cchghpnhiu khe thi gian vo mt knh truyn

TE :Terminal Equipment Thit b u cui

MT : Mobile Equipment Thit b di ng

SGSN : Serving GPRS Support Node Nt h tr GPRS phc v

GGSN : Gateway GPRS Support Node Nt h tr GPRS cng


16/25

MSgm TE (PCcm tay) v MT. Ty vo khnngcamng

c thhotngtrong ba ch.

Ch A: Cho php MSxlngthic CS v PS.

Ch B: Cho php MSxlhocch PShocch

CSnhngkhng ngthi. Khi MS pht gi, nuktni

CS th PStngctvo ch cheo.

Ch C: Cho php MS thchinmi lnmtdchv.

Nu MSchhtrlulngPS (GPRS) th n hotng

ch C.

Khi chc nng GPRS


17/25

Khi chc nng GPRS

BSS: BTSxlclulngCS v PS. N chuynsliu PSn SGSN v CS n MSC. Ngoi cc tnh nng ca GSM,

HLR cngc dng xc nh: (i) thu bao GPRS c a

chIP tnh hay ng; (ii) im truy nhp no c dng ni

nmng ngoi. Vi GPRS, cc thng tin v thu bao c

trao igia HLR vi SGSN.SGSN: NuthtrGPRSphcv,xllulnggi IP n,

mbonhtuyn gi nhn vgi.


18/25


19/25

Khi chc nng GPRS

3G-UMTS:c xy dngtheo ba pht hnh chnh, cgi l R3, R4, R5. Trong mngli R3 v R4 baogm hai

min: min CS v min PS. Vickthp ny ph hp cho

giai on u khi PS cha png tt dch v thi gian

thcnhthoi v hnh nh. Khi ny, min CSsmnhim

cc dcv thoi, cn s liuc truyn trn min PS. R4

phttrinhn R3 chmin CSchuyn sang chuynmch

mm v th ton bmng truyn tigia cc nt chuyn

mch u trn IP. Mng truy nhp ca UMTS c th l

TDMA hoc CDMA.


20/25

SS7

BTS

BSCMSC

VLR

HLRAuC

GMSC

BSS

PSTN

NSS

AE

CD

PSTNAbis

B

H

MS

BSS Base Station System

BTS Base Transceiver Station

BSC Base Station Controller

NSS Network Sub-System

MSC Mobile-service Switching Controller

VLR Visitor Location Register

HLR Home Location Register

AuC Authentication Server

GMSC Gateway MSC

2.5G Architectural Detail

SGSN Serving GPRS Support Node

GGSN 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)


21/25

4

IMT 2000 Vi i I l d


22/25

IMT-2000 Vision IncludesLAN, WAN and Satellite Services

Satellite

MacrocellMicrocell

Urban In-Building

Picocell

Global

Suburban

Basic Terminal

PDA TerminalAudio/Visual Terminal


23/25

BTS Base Transceiver Station

BSC Base Station Controller

Typical 2G Architecture

MSC Mobile Switching Center

VLR Visitor Location Register

HLR Home Location Register

BTS

BSCMSC/VLR

HLRBSC

GMSC

CO

BSC

BSC

MSC/VLR

COPSTN

PLMN

CO

Tandem Tandem

SMS-SC

PSDN

N t k Pl


24/25

Network Planes

Like PSTN, 2G mobile networks have one plane for voice

circuits and another plane for signaling Some elements reside only in the signaling plane

HLR, VLR, SMS Center,

Transport Plane (Voice)

Signaling Plane (SS7)MSC

HLR

MSCVLRMSC

SMS-SC


25/25

GSM Evolution for Data Access

1997 2000 2003 2003+

GSM

GPRS

EDGE

UMTS

9.6 kbps

115 kbps

384 kbps

2 Mbps

GSM evolution 3G

kiến trúc gsm & gprs

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