歯I-3_무선통신기반차세대망-조동호.PDF

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1 KAIST / #1

2 1. NGN 2. NGN 3. NGN / #2

3 1. NGN / #3

4 1.1 NGN, packet,, IP / #4

5 Now: separate networks for separate services Low transmission delay Consistent availability & performance Reliable quality of service Class-of-service Consistent availability & performance SLA support Security Variable transmission delay Inconsistent availability & performance Best-effort quality of service for all traffic / #5

6 Next-generation: one network for all services Consistent availability & performance Class-of-service differentiation Reliable quality of service for each defined traffic type: - voice - video - Internet access - private data - etc / #6

7 1.2 NGN IP Real-time services + + Differentiated services PSTN + interworking = Next-generation services / #7

8 The intelligent network services model Closed environment Proprietary service-development tools Complex signalling & interworking Long service-development cycles (around 2 years) / #8

9 The next-generation services model Open environment (under 1 year) Commercial service-development tools Standard interfaces Short service-development cycles / #9

10 Three emerging classes of next-generation service Access services Single-pipe access to the service provider network for voice, data and multimedia traffic Can also include user control & configuration and bandwidth-on-demand Interconnectivity services Virtual network equipment, providing customer-specific switching functionality: IP VPNs IP centrex Application services Address the particular need of a vertical or horizontal market. Examples include: web-enabled call centres unified call & message management multimedia conferencing / #10

11 2. NGN / #11

12 / #12

13 Past/Present Networks Narrowband voice (callrelated) traffic dominance Limited, pre-defined bandwidth and QoS TDM-centric Expensive infrastructure Proprietary, integrated network w/centralized intelligence Future Networks Broadband data multimedia (informationintensive) traffic dominance Wide range of selectable bandwidth and QoS Packet/cell/frame-based Significant hardware cost reductions Open, modular network w/distributed intelligence / #13

14 Evolution of Virtual ASICs / #14

15 The Evolution of Optical Networking / #15

16 / #16

17 / #17

18 4 Possibilities Will Coexist / #18

19 2.2.2 market / #19

20 / #20

21 2.2.3 Money / #21

22 / #22

23 3. NGN / #23

24 3.1 Core layer Provides network transport for consolidated traffic between network nodes with defined Quality of service Services layer Provides network control and service creation Access layer Includes collection and termination of user and other network traffic. Will include traffic termination and consolidation / #24

25 PBX(Q.931, IP PBX) ADSL ISDN / #25

26 / #26

27 3.1.2 IP network server network service platform / #27

28 3.1.3 WDM over fibre IP over Sonet/SDH / #28

29 3.2 To PSTN / #29

30 Gateway management and Interaction with other gateways Gateway Gateway controller IP protocols Signalling tunnelling and conversion Signalling gateway Media gateway Service access and conversion PSTN protocols / #30

31 Access Gateway (AG) VOP network line side interface Customer Gateway (CG) IP-phones, personal computers Trunk Gateway (TG) PSTN trunk side interface Signaling Gateway (SG) VOP network PSTN signalling Call Connection Agent (CCA) Packet / #31

32 Service Agent (SA) Domain Name Server (DNS) IP Routing and Translation Server (RTS) CCA Billing Agent (BA) VOP network Voice Feature Servers / #32

33 / #33

34 4.1 CDMA PCS / #34

35 4.2 CDMA PCS - (1) (PCX) BHCA (VLR) : 35 (HLR), / #35

36 4.2 CDMA PCS - (2) (BSC) 52, Selector/Vocoder : 1280CH(8CH/ ) (HLR) Multiple FA Multiple Sector(1-3 Sector) Traffic Channel/sector 20 FA 36.0Erlang / #36

37 4.2 CDMA PCS - (3) (MS) : 1,750~1,780MHz(1,710~1,785MHz) : 1,840~1,870MHz(1,805~1,880MHz) : 130mW : 180cc, : 180g : Li-Ion, 900mAH / #37

38 / #38

39 / #39

40 / #40

41 : Shared trunk gateway Packet VOP / #41

42 2 : VOP backbone inter MSC / #42

43 3 : VOP backbone CCA GMSC routing / #43

44 4 : MSC offload Access server IWF / #44

45 5 : Broadband Distribution Network Access / #45

46 6 : MSC Call agent VOP MSC MSC CCA access gateway / / #46

47 / #47

48 / #48

49 : Access MUX / #49

50 2 : PBX LAN / #50

51 3 : IP PBX / #51

52 4 : / IP / #52

歯이시홍).PDF

歯이시홍).PDF cwseo@netsgo.com Si-Hong Lee duckling@sktelecom.com SK Telecom Platform - 1 - 1. Digital AMPS CDMA (IS-95 A/B) CDMA (cdma2000-1x) IMT-2000 (IS-95 C) ( ) ( ) ( ) ( ) - 2 - 2. QoS Market QoS Coverage C/D

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歯I-3_무선통신기반차세대망-조동호.PDF