Bezdrátová komunikace pro hlas a data Jan Kodad

Bezdrátová komunikace pro hlas a data Jan Kodad, ISSS Hradec Králové, 5. duben 2005

GSM – main principles Speech compression Timeslots Cells & Frequencies Uplink & Downlink Base Stations PCM 30 Voice & Signalling channels Location Update Handover © Siemens 11 -2004 2

GSM – network summary HLR A BSS MSC / VLR GMSC PSTN / ISDN / PLMN © Siemens 11 -2004 3

GSM - Data Restricted user data rate 9. 6 kbits / Long call setup time Volume dependent charging isnot available HLR A BSS Restricte d number of users MSC / VLR GMSC PSTN / ISDN / PLMN IP Network Noefficient resource management © Siemens 11 -2004 4

GPRS – main principles Packet Data Transfer (IP) Timeslot Bundling Higher bit-rates Timeslot sharing New Network Infrastructure (IP) Can also be used for UMTS © Siemens 11 -2004 5

GPRS „Always on“ Flexibility in charging Shared access to the same channel MSC / VLR Efficient resource management GMSC PSTN / ISDN / PLMN A BSS Gb Higher bitrates with : l channel bundling l channel coding SGSN Packet oriented IP Network GGSN Direct access © Siemens 11 -2004 6 © Siemens, 2002

GPRS – bit rates CS-1 CS-2 CS-3 CS-4 9, 05 kbit/s 13, 4 kbit/s 15, 6 kbit/s 1 -8 channel Up to 171, 2 kbit/s (theoretically) 21, 4 kbit/s Coding Schemes © Siemens 11 -2004 7

UMTS – high bit rates UTRAN: Max. data rate 1920 kbit/s EDGE: GPRS: 171 kbit/s HSCSD: 115 kbit/s GSM Phase 1/2: 9. 6 kbit/s 473 kbit/s No new network elements; SW modifications 4 / (8) x 14. 4 kbit/s New network elements & protocol architecture: Prerequisite for UMTS! 8 x 21. 4 kbit/s No new network elements; only modifications to the modulation method New transmission principles (WCDMA), network elements & protocols 8 x 59. 2 kbit/s © Siemens 11 -2004 8

UMTS – main principles High bit-rates CDMA New radio access network - Node-B - RNC - ATM Soft handovers Better voice quality New services © Siemens 11 -2004 9

UMTS – zone concept MSS 144 kbit/s 1000 km/h Macro Cell Micro Cell 144 kbit/s 384 kbit/s 500 km/h 120 km/h Pico Cell max. 1920 kbit/s data rate 10 km/h max. speed © Siemens 11 -2004 10

Hi. Path Wireless Strategy – Voice over Converged WLAN • DECT remains cost effective solution for wireless voice • Converged voice and data solutions will emerge on WLAN Voice Vo. IP Wireless Voice Converged WLAN Data IP Data Wireless Data Voice over WLAN © Siemens 11 -2004 11

Gigaset SL 1 professional Funkce Podsvícený grafický displej s 5 řádky Opakování volby pro posledních 10 telefonních čísel Telefonní seznam pro až 200 jmen/čísel Uživatelské rozhraní v 19 jazycích Vibrační vyzvánění Přípojka pro náhlavní soupravu 10 standardních a 16 polyfonních vyzváněcích melodií Komfortní hlasité telefonování (full duplex) Podsvícená tlačítka pro MWI a hlasité telefonování PC rozhraní pro nahrání tel. seznamu, polyfonních melodií a pozadí displeje Vytáčení hlasem pro 23 záznamů Podpora při zadávaní textu do tel. seznamu © Siemens 11 -2004 12

Gigaset S 2 professional Funkce Nástupce Gigaset S 1 professional Hlasité telefonování 36 vyzváněcích tónů/melodií pro interní a externí volání Uživatelské rozhraní v 19 jazycích Opakování volby pro 10 různých naposledy volených čísel Telefonní seznam až 200 čísel a jmen Barevný podsvícený grafický displej s 5 řádky Zobrazení loga na pozadí Prosvětlené tlačítko pro hlasité telefonování a MWI Zablokování sluchátka pomocí PIN (4 číslice) Vytáčení hlasem až pro 30 záznamů Kalendářní funkce pro budík a termíny Snadný způsob vložení textu pro záznamy seznamu Přípojka pro náhlavní soupravu PC rozhraní pro nahrání tel. seznamu a melodií © Siemens 11 -2004 13

Deska SLC 24 Mobile radio network Public network Hicom 300 H BS S 1 DS Co 6 C 1 SL r. N Hi. Path Manager et- NQ Hi. Path 4000 4 C 2 SL Výhody: n Více základních stanic n Více přenosných částí C SL BS © Siemens 11 -2004 14

Deska SLC 24 Propojitelnost: • 16 rozhraní master a 8 rozhraní slave UP 0/E • Integrace do Hicom 300 E od V 3. 0 0. 7 a výše • Smíšená konfigurace s SLC 16 Zdvojení počtu SLC pro každý samostatný systém a v síti Zdvojení počtu základnových stanic Zdvojení počtu sluchátek © Siemens 11 -2004 15

Hi. Path Cordless Data (HCD) Bezšňůrová datová komunikace pro mobilní datová koncová zařízení prostřednictvím DECT Brána Hicom 300 E/H Hlas C SL IP S 2 Co r. N et- N Hi. Path 4000 Data PCMCIA © Siemens 11 -2004 16

Hi. Path Wireless Strategy Platform for Wireless Solutions and Life. Works Unified domain Wireline networks Wireless networks § Unifies wireless voice and data domains Applications Public networks Private networks Wireless LAN is central to Lifeworks § Pervasive in all Life. Works domains § Platform for wireless solutions and applications § Hi. Path Wireless Telephony § “Hi. Path Wireless SIcurity” Mobile worker Personal/ family Home office Branch office Headquarters Unified user experience § Wireless Presence § Survivable branch-office solutions © Siemens 11 -2004 17

Hi. Path Wireless Portfolio Converged WLAN within the Hi. Path Portfolio Wireless Voice Data Convergence Hi. Path WL WLAN Phones Opti. Client (on WLAN data devices) Hi. Path Comm. Platforms Hi. Path Wi-Fi Access Points Hi. Path Wireless Portfolio • WLAN Phones / Soft-clients • Access Points • WLAN Controller Internet • Converged Wireless Services SW WAN Corresponding Com ESY Products • Hi. Path Communication Platforms Data • Hi. Path Management and Communication Applications Hi. Path Product Integration - Management • Wi-Fi – Standards - Applications (Phones and Infrastructure) • Hi. Path Vo. IP independent of Voice wired or wireless IP Communication • Hi. Path Management Integration of Hi. Path equipment Hi. Path WLAN • Hi. Path Applications Integration PSTN Controller of WLAN mobility © Siemens 11 -2004 18

WLAN 11 g Network Clients Voice Data Video Gigaset USB Adapter 54 Gigaset Media Streamer Gigaset USB Stick 54 WLAN Vo. IP Miro Handsets Gigaset M 250 TV dsl Gigaset PC Card 54 Gigaset PCI Card 54 Dantes Gigaset WLAN Camera © Siemens 11 -2004 19

Entry Variant Gigaset S 35 WLAN Voice • basic call - Black/white display • Supplementary services • handsfree Data • SMS (if standard ready) • e-mail (without attachments) • rich telephone book (transfer via PC-SW) © Siemens 11 -2004 20

High-End-Variant Gigaset SL 75 WLAN - colour display - integrated camera - vibration ringer Data • rich telephone book (transfer via PC-SW) • Instant messaging (buddy lists, presence, chat) • SMS, EMS, Fast-MMS (if standard ready) Voice • E-mail (jpeg attachments) • basic call • Further Features: - Audio streaming • Supplementary services • handsfree • Gigaset M 34 USB applications © Siemens 11 -2004 21

Hi. Path Wireless Portfolio End-to-End Converged Wireless LAN 3 rd Party WLAN Clients Hi. Path WLAN Phones and Clients rd 3 rd Party / Legacy 3 Party Server 1. 1 Hi. Path WLAN Access Points Hi. Path WLAN Clients Access Points opti. Point WL 2 professional rd for 3 party APs Points Hi. Path Access - Cor. Net IP version • enables 3 fast handover Controller rd Party / Legacy Hi. Path - SIP version WLAN Access Points Hi. Path Wireless Controller • dual-radio 802. 11 a, b/g Hi. Path Real-Time IP Communication System e 2 e solutionwith internal or external antenna Hi. Path APs • available w/ 130 V 5. 0 opti. Client • available w/ 4 Fast or 2 Gigabit Ethernet ports • plug-and-play integration with WLAN controller Umbrella Hi. Path Management • Supports up to RF-management module • optional with 200 APs Network Management Hi. Path Management • Operates at wire speed opti. Pocket Hi. Path WLAN Services • Hi. Path Wireless Convergence software Umbrella Data Applications and Services Hi. Path Real-Time Communications Applications opti. Point WL 1 professional opti. Point W 1 professional WLAN Design, Security, Lifecycle Services Network Management Corporate IP Network © Siemens 11 -2004 22

Enterprise-grade Voice over WLAN (Vo. WLAN) Enterprise-grade Vo. WLAN Criteria: End-user Quality and Performance voice quality over the air and end-to-end quality of the service Rigorous Security encryption of air-interface and authentication / authorization Seamless User Mobility users want to roam freely through the Enterprise without interruption High Availability and Reliability this poses requirements on the WLAN infrastructure and devices Low Total Cost of Ownership is driven by installation and set-up, management and administration © Siemens 11 -2004 23

Hi. Path Wireless Architecture Hi. Path Wireless Convergence Software • Centrally manages groups & user policies • Centralized moves/adds/changes • #1 Subnet. Controls traffic flow IP Network Hi. Path Wireless Controller • Placed anywhere on an IP network • Routes IP traffic to and from mobile users • Manages user sessions and policies IP Network WAN Subnet #2 Hi. Path Wireless AP • Placed anywhere on an IP network • Communicates to WLAN Controller via IP © Siemens 11 -2004 24

Portfolio Features: Availability and Security Availability Features Session continuity § Survival through Controller and network outages Redundant Wireless Controllers § Ensures against Controller outage § Redundant power supplies Security Features • 802. 11 Security for Authentication/Encryption § 802. 11 i, WPA. TLS, PEAP, RADIUS • Captive Portal § Redirect to URL for authentication • VPN Overlay • Intrusion/Rogue AP detection § Run in load sharing mode Survives network failures § Multiple interface support on Controller TKIP/AES Encryption Wireless Controller § Full functioning router Secure Socket Layer VPN Server Check. Point Blue Ridge Networks Radius Server IPSec, L 2 TP, Etc. © Siemens 11 -2004 25

Hi. Path WLAN Branch Office Solution Local Traffic – Centralized Control Traffic (Signaling) Local Traffic Headquarters WAN Connection Branch Office Benefits: § Centralized WLAN control across multiple remote offices § Low WAN overhead – remote traffic stays local § Plug and play deployment and configuration model § Automated fail-over coverage among access points § Traveling employees can access the same corporate resources at remote sites © Siemens 11 -2004 26

Děkuji za pozornost jan. kodad@siemens. com