ung dung chuyen mach mem
TRANSCRIPT
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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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