Services Supplementary Services Teleservices ISDNoriented Mobile specific services

Services Supplementary Services Teleservices • ISDN-oriented • Mobile specific services & modifications Bearer Services GSM Phase 1/2 Services Fig. 1 (TM 2100 EU 03 TM_0001 GSM Services, 3)

Tele Services TS: defines services "end-to-end" incl. application Bearer Services BS: defines data transmission Teleservices Bearer Services PLMN section TE (MS) GSM network Interworking Function IWF section outside PLMN Transit network Terminating network TE (MS) Supplementary Services SS: enhance/modify TS / BS Fig. 2 (TM 2100 EU 03 TM_0001 GSM Services, 5)

Bearer Services T/NT: Transparent / Non-Transparent UDI: Unrestricted Digital Information PAD: Packet Assembler / Disassembler Fig. 3 (TM 2100 EU 03 TM_0001 GSM Services, 7)

Teleservices T/NT: Transparent / Non-Transparent UDI: Unrestricted Digital Information PAD: Packet Assembler / Disassembler Fig. 4 (TM 2100 EU 03 TM_0001 GSM Services, 9)

Fig. 5 (TM 2100 EU 03 TM_0001 GSM Services, 11) Supplementary Services

Services Applications Fig. 6 (TM 2100 EU 03 TM_0001 GSM Services, 13)

Mobile equipment: Current Applications: Terminal Devices • Car phones • Portables • Handhelds Transmission power: • 8 W / 4 W (GSM 900/1800) • 2 W/1 W Applications/Transmission: • Speech • Short messages (SMS) • Faxes • Data • Internet surfing • Organizer • Mobile banking Mobile accessories: • Fax devices • Laptops • Digital cameras • Headsets • Barcode readers • GPS receivers • . . Fig. 7 (TM 2100 EU 03 TM_0001 GSM Services, 15)

Trend in GSM: speech data Significance speech: "normal connection" emergency call Implementation depending on operator Implementation obligatory after start phase SMS: Implementation obligatory fax 1992 Implementation obligatory Traffic volume of data services (total): 1 -2% 1994 paging, personal short message, remote control, barcode reader, telematics, GPS, . . . 1996 other data transport: internet, e-mail, file transfer, video telephony, . . . 1998 2000 Year Fig. 8 (TM 2100 EU 03 TM_0001 GSM Services, 17)

Demands on Mobile Communications Solutions: Phase 2+ • Quick transfer of large data volumes (E-Mail, Internet, File transfer, Multimedia) • Improved speech quality • User friendliness • Worldwide availability • Worldwide HPLMN service • Specific services Fig. 9 (TM 2100 EU 03 TM_0001 GSM Services, 19)

Services Demands on mobile communications? GSM Phase 2+ solutions GSM Phase 2+ Services Fig. 10 (TM 2100 EU 03 TM_0001 GSM Services, 21)

EFR Enhanced Full Rate multisatellite roaming band / mode e. g. ICO MSP Multiple Subscriber Profile ASCI SOR Support of Optimal Routing UUS User-User Signalling Advanced Speech Call Items CAMEL GPRS Customized Application General Packet for Mobile network HSCSD Radio Service Enhanced Logic High Speed Circuit Switched Data EDGE Enhanced Data rates for the GSM Evolution GSM Phase 2+ Solutions Fig. 11 (TM 2100 EU 03 TM_0001 GSM Services, 23)

GSM / ISDN: Data Transmission Rates EDGE 400 max. data rate [kbit/s] 350 300 250 GPRS 200 HSCSD 150 100 50 0 ISDN GSM Phase 1/2 ISDN: Integrated Services Digital Network GPRS: General Packet Radio Service GSM GSM Phase 2+ HSCSD: High Speed Circuit Switched Data EDGE: Enhanced Data rates for the GSM Evolution Fig. 12 (TM 2100 EU 03 TM_0001 GSM Services, 25)

HSCSD High Speed Circuit Switched Data 9. 6 • • 14. 4 kbit/s transmission rate 14. 4 kbit/s 28. 8 kbit/s 57. 6 kbit/s Circuit Switched only point-to-point Disadvantage: not resource efficient e. g. moving pictures, video telephone for continuous data flow no new network elements SW modifications smaller HW modifications Fig. 13 (TM 2100 EU 03 TM_0001 GSM Services, 27)

GPRS General Packet Radio Service bundling: 1 - 8 channels CS-1 CS-2 CS-3 CS-4 Packet Switched 9. 05 kbit/s up to > 100 kbit/s 13. 4 kbit/s 15. 6 kbit/s 21. 4 kbit/s channel different redundancy depending on air interface quality coding Advantage: • resource efficient • direct IP access • prerequisite for UMTS (theoret. 171. 2 kbit/s) billing according to data volume possible point-to-multipoint (possible) internet, telemetry, fleet management, e-mail, traffic telemetry, . . Modifications in Network & Protocol architecture protocol architecture modifications Fig. 14 (TM 2100 EU 03 TM_0001 GSM Services, 29)

EDGE: Enhanced Data rates for the GSM Evolution TS bundling data rate/TS [kbit/s] transmission rate 1 2 3 4 8 • • up to 69. 2 up to 138. 4 kbit/s up to 207. 6 kbit/s up to 553. 6 kbit/s GSM (HSCSD) GSM (EDGE) Modulation GMSK 8 PSK Carrier width 200 k. Hz • High-level modulation (813 instead of 270 kbit/s) • Use of "classical" GSM channel structure 813 kbit/s (FDMA/TDMA: 200 k. Hz; 8 TS with 4. 615 ms each) Modulation rate 270. 8 kbit/s bit rate/TS 14. 4 kbit/s 69. 2 kbit/s Max. rate 115 kbit/s 553. 6 kbit/s EDGE: • Booster for GPRS (&HSCSD) • max. 8 x 69. 2 kbit/s = 553. 6 kbit/s meets 3 G requirements (Zone 3: rural) Fig. 15 (TM 2100 EU 03 TM_0001 GSM Services, 31)

Speech Transmission in Phase 2+ Enhanced Full Rate EFR improved speech codec (13 kbit/s) ASCI Advanced Speech Call Items • Voice Broadcast Service VBS • Voice Group Call Service VGCS • enhanced Multi-Level Precedence and Pre-Emption e. MLPP For Closed User Groups (GSM-R) Group and broadcast services Quick call set-up Priority control Fig. 16 (TM 2100 EU 03 TM_0001 GSM Services, 33)

Advanced Speech Call Items ASCI Voice Broadcast Service VBS enhanced Multi-Level Precedence & Pre-Emption e. MLPP • Priority control for VBS, VGCS • Priority classes: 5 (subscriber) + 2 (network-internal procedures) • Priority allocation: service provider / SIM Voice Group Call Service VGCS • Speech group call: 1 group call channel • 1 "speaker", many listeners; group as with VBS • Changing speaker (call initiator listener mode) • "Transmission rights" in speech pauses • Ended by initiator / VAD Fig. 17 (TM 2100 EU 03 TM_0001 GSM Services, 35) • 1 "speaker“ (MS or fixed network), many listeners • Message for particular groups / particular cells • Only “speaker" interacts with network • Notification (instead of paging) & message in def. cells • "Listener" passive (confirmation message possible)

CAMEL Customized Application for Mobile network Enhanced Logic allows operator-specific services ETSI definition of IN services usage also with International Roaming Implementation in steps: Step 1: Release ‘ 96 Support of some service definitions e. g. "Call Screening Services", "Call Supervision Services", "Number Translation Services" Step 2: Release ‘ 97 other features: download HPLMN-charging information, on-line charging, internal pre-paid, Specialized Resource Functions SRF (add. service info, tones, announcements, . . ), local info, . . . Step 3: Release ‘ 99 exchange of subscriber information HPLMN VPLMN implementation of IN functional elements • Co-operation with GSM mobility management • Multiparty calls • Support of UMTS - VHE concept Fig. 18 (TM 2100 EU 03 TM_0001 GSM Services, 37)

SIM Toolkit GSM functions SIM Subscriber Identity Module SIM Toolkit ME Mobile Equipment • Supplements ME functions without HW modifications • Data download (SMS) • Call control (digit sequence) • Info on cell identity, call status application modifications for status change possible • Applications: home banking, booking flights, info services, . . . • Special security mechanisms Fig. 19 (TM 2100 EU 03 TM_0001 GSM Services, 39)

MEx. E Mobile station application Execution Environment simplified implementation of operator-dependent applications user friendly interfaces (internet surfing / mobile phones) WAP Wireless Application Protocol SW download JAVA Fig. 20 (TM 2100 EU 03 TM_0001 GSM Services, 41)

Other Phase 2+ Features UUS SOR Support of Optimal Routing User to User Signaling speech + SMS • Direct connection • No detour via HPLMN • VPLMN HPLMN: only signaling private MSP Multiple Subscriber Profile • Max. 4 different subscriber identities • 1 SIM work Fig. 21 (TM 2100 EU 03 TM_0001 GSM Services, 43)