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Tng quan v mng NGN

Kin trc thnh phn ca chuynmch mm

Mt s ng dng ca chuyn mchmm

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I) MNG TH H SAU NGN (Next Generation Network)

1)c im mng vin thng hin ti:

Tn ti mt cch ring l ,ng vi mi mt loi dch v thng tin li c t nhtmt loi mng vin thng ring bit phc v dch v Mi mng c thit k cho mt dch v ring bit v khng th s dng cho ccmc ch khc

Thiu mm do

Km hiu qu trong vic bo dng ,vn hnh cng nh s dng ti nguyn ,ti nguyn sn c trong mt mng khng th chia s cho cc mng khc cngs dng .

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2)Mng th h sau NGN

Hnh 1.1 Cu trc mng th h sau NGN

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NGN l mng hi t cthoi , video v d liu trnmt c s h tng da trnnn tng ca giao thc IP

lm vic c trn hai phngtin truyn thng v tuynv hu tuyn

L s kt hp ca cu

trc mng hin ti vi cutrc mng a dch v datrn c s h tng c snvi s hp nht cc hthng qun l v iu khin

Hnh 1.2 M hnh phn lp ca NGN

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I) NHNGHA CHUYN MCHMM

- Theo MobileIN- Theo Nortel- Theo Copper Com

II) V TR CA CHUYN MCHMM TRONG M HNHPHN LP CHC NNG CANGN

Chuyn mchmm

Lp phng tin

Lp truy nhp v truyn ti

Lp iu khin

Lp dch v

Hnh 2.1 V tr ca chuyn mch mm

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III ) CC THNHPHN CHNHCA CHUYN MCHMM

Hnh 2.2 .Kt ni MGC vi cc thnh phn khc ca mng th h sau NGN

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Hnh 2.3 Cc thc th chc nng ca chuyn mch mm

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Hnh 2.4.Cc giao thc s dng gia cc thnh phn

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Hnh 2.5 .V d s dng Media Gateway Controller

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Mt lu x l cuc gi ca Softswitch

Tn hiu off-hook (1)

in thoi gi(PSTN)

MGC giLE gi; SG MG giin thoi bgi (PSTN)

MGC b gi MG b gi LE b gi; SG

Tn hiudial Tone(2)

Thng bo (2)

Yu cu to ktni (3)

Gi s (4)

Quyt nh nhtuyn (5)

Yu cu thit lpcuc gi (6)Yu cu to kt

ni (7)Tn hiu chung

(8)

Thu bao b giri (9)

ang lin lc vib gi (10)Tn hiu chung phn hi (11)

(12)

Hnh thnh kt ni cho hai thu bao (13)

ang lin lc vib gi (10)

ang lin lc vib gi (10)

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NG DNG CHUYN MCH

MM1. ng dng lm SS7 PRI Gateway (gim tiinternet)

2. ng dng tng i Packet tandem Gim ti cctng i chuyn tip Dch vng di

3. ng dng tng i ni ht Cung cp dch vcho doanh nghip Cung cp ccdch vtnhn

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ng dng lm SS7 PRI Gateway(gim ti internet)

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ng dng tng i Packet tandema. Gim ti cc tng i chuyn tip

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ng dng t ng i Packettandem

b. Dch vng di

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ng dng t ng i ni hta. Cung cp dch vcho doanh

nghip

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ng dng tng i ni htb. Cung cp ccdch vtnhn

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