Mobile Data Transfer -Access Technologies for 3G Services- Bonn, - PDF document

”Mobile Data Transfer” -Access Technologies for 3G Services- Bonn, April 8, 2003 Presented by: Vice President Training Telecommunication Networks Klingenhofstrasse 58, 90411 Nuremberg / Germany About TOP... WBTs: GPRS, UMTS, TCP/IP, GSM, ATM, VoIP Training Training Consultancy Training & Training Training & Mobile & Consultancy Proj. Mngmt. Consultancy Information Telecomms. Fixed Org. & Mngmt. Indiv. Skills TQM Technology Networks Networks Development ISO / TL9000 ! Since 1994, independent training institute, privately owned GSM HSCSD ! Training centers: Nuremberg, Hamburg, Neuss, Neu-Ulm GPRS ! Total Staff in 2003: 65 UMTS WLAN ! Total Sales in 2002: EUR 7.7m Bluetooth ! DIN EN ISO 9001 certification since 1993  TOP Business AG TM / BKU, NGN, ! ETSI, 3GPP, EFQM member V1.0, Mar 02 2 1 1

Possible Mobile Data Technologies GSM HSCSD DECT GPRS IrDA GSM HSCSD EDGE Bluetooth GPRS UMTS WLAN Bluetooth WLAN UMTS SatCom  TOP Business AG TM / BKU, NGN, V1.0, Mar 02 3 Presentation Contents GSM HSCSD GPRS GSM HSCSD Bluetooth GPRS UMTS WLAN Bluetooth UMTS WLAN  TOP Business AG TM / BKU, NGN, V1.0, Mar 02 4 2 2

Throughput Capability 10 M IEEE802.11b t e k <11Mbps c a p throughput bps 1 M Bluetooth UMTS <1Mbps <2Mbps t u i c r c i 100 k GSM 64 k GPRS HSCSD 57.6 ~53kbps GPRS 10 k 9.6 UMTS HSCSD WLAN 1 k Bluetooth 1998 1999 2000 2001 2002 2003 Time frame  TOP Business AG TM / BKU, NGN, V1.0, Mar 02 5 Still Alive: GSM Data Services 9.6kbps Value Added Services Supplementary Services Tele-Services Bearer-Services OSI Layer 1 - 3 3 3

Transparent / Non-transparent Mode Transparent Mode – Forward Error Correction by Data Terminal Equipment – requires constant data rate Non-transparent Mode – RLP by MS and IWF – Enables flexible bit rates GSM BSS HSCSD PSTN GPRS UMTS MSC/IWF WLAN Bluetooth Non-Transparent: RLP error handling  TOP Business AG TM / BKU, NGN, Transparent: Terminal Protocol handles corrections V1.0, Mar 02 7 Standard Channel Coding 240 244 bits / 20 ms 488 456 1/2 Rate Block Code Puncturing Convolutional 240 + 4 488 - 32 Code GSM 12 kbps HSCSD 22.8 kbps GPRS (9.6 net) UMTS WLAN Bluetooth  TOP Business AG TM / BKU, NGN, V1.0, Mar 02 8 4 4

GSM CS Data Applications 0.3...9.6kbps Circuit-switched Expensive (time-based billing) E-mail browsing (headlines, low content) M2M (Machine-to-Machine communications) – Vending machine control GSM HSCSD GPRS UMTS WLAN – Traffic flow measurements Bluetooth  TOP Business AG TM / BKU, NGN, V1.0, Mar 02 9 A First Step Forward: TS Bundling With High-Speed CS Data 3 +1 TCH BSC 3 +1 TCH 5 5

HSCSD Key Features (1) Smooth integration into infrastructure by SW updates Net bit rate per TS boost from 9.6 to 14.4 kbps by improved channel coding 290 294 bits / 20 ms 588 456 1/2 Rate Block Code Puncturing Convolutional GSM 290 + 4 588 - 132 Code HSCSD GPRS UMTS 14.5 kbps WLAN 22.8 kbps (14.4 net) Bluetooth  TOP Business AG TM / BKU, NGN, V1.0, Mar 02 11 HSCSD Key Features (2) TCH bundling: 1...4, different for UL and DL Higher net bit rate but less resistant against interference Handover problems at cell borders Adaptive Link Adaptation: Selects either standard or improved channel coding according to transmission quality (BER) for optimized data transmission GSM HSCSD No QoS levels GPRS TCH 9.6 kbps Input 14.4 kbps Input UMTS 1 9.6 14.4 WLAN 2 19.2 28.8 Bluetooth 3 28.8 43.2  TOP Business AG 4 38.4 57.6 TM / BKU, NGN, V1.0, Mar 02 12 6 6

HSCSD System Architecture PSTN ISDN TRAU BTS BSC PDN MSC Max. 4 TCH IWF Split & combine function located in IWF of MSC and MS GSM IWF /MSC: Mapping of 4 TCH at 64kbps each to 1 TCH at HSCSD 64kbps towards PSTN GPRS MS: UMTS WLAN – 3 TS offset between TX and RX Bluetooth – TS for adjacent cell monitoring  TOP Business AG – Max. no. of 4 TCH (with 2nd RX) TM / BKU, NGN, V1.0, Mar 02 13 HSCSD Applications E-Mail retrieval with low volume attachments Data download from host PC Web surfing Still time-based billing Available at: – GSM HSCSD GPRS UMTS WLAN Bluetooth  TOP Business AG Few roaming possibilities TM / BKU, NGN, V1.0, Mar 02 14 7 7

From CS To PS Data: General Packet Radio Service Packet Data Network Packet Data Network GPRS network Packet Data Network Packet Data Network The Idea GPRS Load Capacity used for delayed GPRS traffic Necessary Capacity GSM Load GSM HSCSD GPRS Time UMTS WLAN Bluetooth  TOP Business AG GPRS Load GSM Load TM / BKU, NGN, V1.0, Mar 02 16 8 8

GPRS As A Part Of The Packet World GPRS 201.19.26.43 Network 201.19.26.0 201.19.26.86 Router (IP) GSM Network A Network B HSCSD 202.74.18.0 198.14.76.0 GPRS UMTS WLAN 202.74.18.26 198.14.76.4 198.14.76.27 Bluetooth  TOP Business AG TM / BKU, NGN, V1.0, Mar 02 17 GPRS Terminals Types Type A - GSM attached AND GPRS attached – simultaneous voice and packet data – two radio chains required Class A Class B Class C Type B - GSM attached AND GPRS attached – alternate voice and packet data GSM – required for mass market applications HSCSD – complex implementation GPRS UMTS WLAN Type C - GSM attached OR GPRS attached Bluetooth – manually switched  TOP Business AG – simple to implement TM / BKU, NGN, V1.0, Mar 02 18 9 9

MS Classes For Multislot Capabilities max. no. of TS Multislot class class RX TX class1 1 1 class2 2 1 class3 2 2 class4 3 1 . . . Limitation in Phase1 GSM . . . HSCSD class8 4 1 GPRS . . . UMTS . . . class17 7 7 WLAN . . . Bluetooth . . .  TOP Business AG class29 8 8 TM / BKU, NGN, V1.0, Mar 02 19 GPRS Services Point -to-Point Services – PTP Connection-Less Network Services (PTP-CLNS) using IP – PTP Connection-Oriented Network Services (PTP-CONS) using X.25 Point-to-Multipoint Services – Transmission of packets between a service requester and a receiver group currently located within a geographical area – Both, the receiver group and the geographical area are specified by the service requester GSM HSCSD – PTM-M : PTM Multicast GPRS – PTM-G : PTM Group Call UMTS – IP-M : IP Multicast A B WLAN Bluetooth  TOP Business AG TM / BKU, NGN, V1.0, Mar 02 20 10 10

QoS Parameter Quality of Service (QoS) profile defines the quality of service expected in terms the following attributes : – precedence class – delay class – reliability class – peak throughput class GSM – mean throughput class HSCSD GPRS UMTS WLAN Bluetooth  TOP Business AG TM / BKU, NGN, V1.0, Mar 02 21 GPRS Network Architecture A A MSC GMSC PSTN ISDN SSS TC VLR HLR SMS-C A-ter AuC BSS Gs Gr PCU EIR Gd BSC Gf Gb A-bis Gn Gi SGSN GGSN FW INTERNET BTS Gn Gp INTER-PLMN BG A-bis GPRS GSM Backbone BTS HSCSD GPRS Backbone DNS Um GPRS GGSN UMTS Ga WLAN CG Bluetooth GPRS Core  TOP Business AG BC TM / BKU, NGN, V1.0, Mar 02 22 11 11

Serving GPRS Support Node (SGSN) Tasks Converts protocols used in the IP backbone to protocols used in the BSS and the MS Takes care of authentication and mobility management Routes data to the relevant GGSN when GSM HSCSD connection to an external network is required Routing Table Routing Table GPRS UMTS Collects charging data and traffic statistics WLAN Bluetooth Ciphers the Packet Data Unit (PDU)  TOP Business AG TM / BKU, NGN, V1.0, Mar 02 23 Gateway GPRS Support Node (GGSN) Tasks A cts as the interface between the GPRS network and external networks Collects charging data and traffic statistics Allocates IP addresses for users h T e Wo rl d R b o i n P so n j ecti o ro n B r u c e J o n e s D e s i g n n c . I 1 9 9 2 Address Address Mapping Mapping GSM HSCSD Routes packets coming from external GPRS networks towards the correct SGSN and UMTS vice versa Routing Table Routing Table WLAN Bluetooth  TOP Business AG TM / BKU, NGN, V1.0, Mar 02 24 12 12

Packet Control Unit (PCU) P acket C ontrol U nit BTS + CCU PCU SGSN Relay function Abis Gb GSM HSCSD BSSGP RLC blocks asynchronous GPRS Frame Relay TRAU frames UMTS synchronous management WLAN Bluetooth Packet part Radio part BSC  TOP Business AG TM / BKU, NGN, V1.0, Mar 02 25 Additional GPRS Network Elements SGSN Intra- GPRS Backbone NAT RADIUS GSM DNS HSCSD GPRS UMTS DHCP WLAN other network Border Gateway Bluetooth  TOP Business AG TM / BKU, NGN, V1.0, Mar 02 26 13 13

Domain Name Server (DNS) 192.168.0.1 www.topbusinessag.com IP address Symbolic name GSM DNS Server HSCSD GPRS UMTS WLAN Bluetooth  TOP Business AG TM / BKU, NGN, V1.0, Mar 02 27 Remote Access Dial In User Server (RADIUS) RADIUS RADIUS Client Client • authentication GSM request • allocation of HSCSD • authentication IP address GPRS • allocation of UMTS IP address WLAN Bluetooth RADIUS Server  TOP Business AG TM / BKU, NGN, V1.0, Mar 02 28 14 14