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GSM TOWARDS LTE NETWORKS

GSM TOWARDS LTE NETWORKS. Lecture # 5. MOBILE TRAFFIC VOICE AND DATA. Exabyte = Giga Giga Byte. Source: Internal Ericsson DVB-H, Mobile WiMax, M2M and WiFi traffic not included This slide contains forward looking statements. THE 3G VISION. Global Seamless Roaming Common Worldwide Spectrum

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GSM TOWARDS LTE NETWORKS

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  1. GSM TOWARDS LTE NETWORKS Lecture # 5

  2. MOBILE TRAFFIC VOICE AND DATA Exabyte = Giga Giga Byte Source: Internal Ericsson DVB-H, Mobile WiMax, M2M and WiFi traffic not included This slide contains forward looking statements

  3. THE 3G VISION Global Seamless Roaming Common Worldwide Spectrum Multiple Radio Environments Wide Range of Services -Voice & Data Equally Flexible, Spectrum Efficient Technologies Wireless - Wireline Integration Enhanced Security and Performance Wireline Services and Quality Levels Rapid Introduction of New Technology

  4. 3G VISION - APPLICATION Application Multimedia Message Service (MMS) Email Video phone Video streaming Any service from the Internet

  5. 3G VAS APPLICATIONS • Video SMS • Video Portal • Mobile TV • Video IVR • Video CRBT • Mobile Video Marketing • YouTube upload • Video conferencing • Video greeting • Dial TV service • 3G Music Station with full track song download • Video Contact Center

  6. 2G TOWARDS 3G • Higher data bandwidth requirement • Anticipated subscriber demand for • Audio/Video streaming • Other multimedia services • Collaborative services • Location services

  7. 3G - PRINCIPLE REQUIREMENT • Support for voice quality comparable with fixed line networks • Support for both circuit-switched and packet-switched data services • Support for greater capacity and improved spectrum efficiency

  8. 3G–PRINCIPAL REQUIREMENT • A data rate of 144 kb/s for users moving quickly e.g. moving vehicles • A data rate of 384 kb/s for pedestrians • A data rate of 2 Mb/s in a low mobility or office environment. • Note how a network using GPRS and EDGE meets most of these criteria!

  9. Example: 3G SERVICES (UMTS) • Universal Mobile Telephone System (UMTS) • Four QoS classes of services • Conversational Class • Voice, video telephony,video gaming • Streaming Class • multimedia, video on demand, webcast • Interactive Class • WWW browsing, database access, online gaming • Background Class • email, SMS, file downloading

  10. 2.5 GPRS VOICE / data ARCHITECTURE Voice Calls Path Data Calls Path Packet Data14.4 Kp/s

  11. LTE/SAE Architecture 3G NETWORK IP networks Only PS Domain shown HLR/HSS Gi Gr Gn Gn GGSN SGSN Iu Gb RNC BSC Iur Node B BTS 2G 3G

  12. LTE/SAE Architecture HSPA (High Speed Packet Access) IP networks Only PS Domain shown HLR/HSS Gi PCRF Gr Gx Gn GGSN SGSN Optimizing the 3G/HSPA payload plane for Broadband traffic Iu CP Iu UP Gb RNC BSC Iur Node B BTS 2G 3G Release 7 ”Direct Tunnel”

  13. STEPS TOWARDS 3G 1- Backbone Roll Out (Packet Network) All the backend traffic transfer on IP (Packets) /Passport/ATM/MPBN 2- Data Network 3- Core Network 4- RAN Network

  14. 1-BACKBONE ROLL OUT (Packet Network) Migration Steps

  15. 2-DATA NETWORK MIGRATION

  16. 2nd GENERATION NETWORK

  17. 3rd GENERATION NETWORK

  18. 2G & 3G NETWORK

  19. TOWARDS IP NETWORK

  20. MSC-S MSC-S MGw MGw MGw MGw MGw MGw MSC MSC MSC MSC MSC MSC 3-CORE NETWORK MIGRATION Classical MSC Architecture (old name: Non-Layered Mobile Core Network/ ’Monolitic’ Architecture) Mobile Softswitch Solution (old name: Layered Mobile Core Network Architecture) MSC Server (Control) Classic MSC(Control and Switching) Mobile Media Gateway (Switching) Control Layer IP/ATM/TDM TDM

  21. INCREMENTAL MIGRATION In Pakistan, Most operators have incrementally Migrated. Two strategies have been adapted GPRS adapted by Warid Telecom. EDGE adapted by Ufone.

  22. MOBILE SOFT SWITCH SOLUTION FOR 3G CORE NETWORK One of the most efficient way to upgrade for 3G core networks. Layered architecture for ease MSS is only for Mobile core networks

  23. LAYERED ARCHITECTURE The benefit of layered architecture is from research and development purpose. In communication there are two main recourses i.e. controlling and connectivity.

  24. MSS LAYERS 1. Control Layer 2. Connectivity Laye 3. Application Layer

  25. CONTROL LAYER This layer is refer to the logical layer as it performs logical operations of the MSS this node provides the analysis and control functions required for circuit switched traffic and using standardized signaling controlling the allocation of required resources in the connectivity layer

  26. CONNECTIVITY LAYER This layer is based on ATM (Asynchronous Transfer Mode) and IP protocols. Providing end-to-end connection throughout the core network. This layer provide standard interfaces for the connectivity with other legace networks.

  27. APPLICATION LAYER In this layer all the application are added and managed. Like if Warid want to provide CBRT (Caller Back Ring Tone) service then it add server that provide this service to the user in the application layer. Recourses of such servers are controlled by MSC-S.

  28. MSS ARCHITECTURE

  29. MSS NODES MSC-S (Mobile Switching Server) M-MGW (Mobile Media Gateway)

  30. MSC-SERVER MSC-S is the control layer device of the 3G network. It contains all call and control service logic such as: ѣ Charging analysis ѣ Bearer selection ѣ Route analysis ѣ Media Gate way selection

  31. MSC-SERVER It provides efficient and centralized control of the distributed switching provided by the Mobile Media Gateway (M-MGw), ensuring flexible, cost-effective network design, and a smooth evolution to an all-IP core network.

  32. MSC-SERVER Data Base nodes Other MSC-S Radio Sites MSC-S M-MGW

  33. M-MGW M-MGW is the connectivity layer device. M-MGW connects the MSS core network with the external networks such as WCDMA and GSM radio access networks, PSTN networks, PABXs, IMS/VoIP network, or other mobile networks. This node controlled by MSC-S.

  34. SIGNALING AND PROTOCOLS Data Base Nodes MAP MAP T-MSC Server 1 MSC Server 1 BSSAP BSC BICC / MAP ISUP SIP RANAP GCP GCP PSTN/ISDN/PLMN RNC M-MGW 1 M-MGW 2

  35. INTERFACE & PROTOCOLS MSC Server 1 T-MSC Server 1 BSC Nc Mc Mc PSTN/ISDN/PLMN A RNC Lu CS Nb M-MGW 1 M-MGW 2 POI Control Plane User Plane

  36. 3G CALL SETUP

  37. CALL SETUP MSS Network Call Setup Scenario : Subscriber “A” is a calling party from PTML and Subscriber “B” is called party that is related to PSTN 'A‘ Mobile Station CALLS 'B‘ Mobile Station ANSWERS

  38. MSC Server 1 T-MSC Server 1 RNC PSTN/ISDN/PLMN M-MGW 2 M-MGW 1 IP BS 1. SETUP

  39. MSC Server 1 T-MSC Server 1 RNC PSTN/ISDN/PLMN M-MGW 2 M-MGW 1 IP BS 2. RNC send SETUP message to MSC-S

  40. MSC Server 1 T-MSC Server 1 RNC PSTN/ISDN/PLMN M-MGW 2 M-MGW 1 IP BS 3. SEIZE RESOURCES

  41. MSC Server 1 T-MSC Server 1 RNC PSTN/ISDN/PLMN M-MGW 2 M-MGW 1 IP BS 4. M-MGW reply by ACK message

  42. MSC Server 1 T-MSC Server 1 RNC PSTN/ISDN/PLMN M-MGW 2 M-MGW 1 IP BS 5. MSC-S inform RNC that call is in progress by CALL PROCESSED message

  43. MSC Server 1 T-MSC Server 1 RNC PSTN/ISDN/PLMN M-MGW 2 M-MGW 1 IP BS 6. MSC-S send ASSIGNMENT message

  44. MSC Server 1 T-MSC Server 1 RNC PSTN/ISDN/PLMN M-MGW 2 M-MGW 1 IP BS 7. RNC send ERQ message to selected M-MGW

  45. MSC Server 1 T-MSC Server 1 RNC PSTN/ISDN/PLMN M-MGW 2 M-MGW 1 IP BS 8. M-MGW setup virtual connection with RNC and reply by ECF message

  46. MSC Server 1 T-MSC Server 1 RNC PSTN/ISDN/PLMN M-MGW 2 M-MGW 1 IP BS 9. RNC send ASSIGNMENT COMPLETE message

  47. MSC Server 1 T-MSC Server 1 RNC PSTN/ISDN/PLMN M-MGW 2 M-MGW 1 IP BS 10.MSC-S 1 send IAM message to MSC-S 2

  48. MSC Server 1 T-MSC Server 1 RNC PSTN/ISDN/PLMN M-MGW 2 M-MGW 1 IP BS 11.T-Server send SEIZE RESOURCE message to selected M-MGW

  49. MSC Server 1 T-MSC Server 1 RNC PSTN/ISDN/PLMN M-MGW 2 M-MGW 1 IP BS 12. M-MGW send reply by ACK

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