Скачать презентацию September 2003 doc IEEE 802 11 -03 0682
949da2f8102344f5d59489383bb22737.ppt
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Скачать презентацию September 2003 doc IEEE 802 11 -03 0682
Скачать презентацию September 2003 doc IEEE 802 11 -03 0682
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k ISO TC 204 CALM Status presented to IEEE 802. 11 15 September 2003 Presenter: Knut Evensen Q-Free Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k Outline • Overview of standardisation bodies • What is CEN - DSRC? • Overview of ISO TC 204 - Intelligent Transport Systems WG 16 - Wide Area Communications CALM Submission Knut Evensen, Q-Free
September 2003 Standardisation – an overview General Electro Comm. IT JTC 1 ICTSB Knut Evensen, Q-Free 414. 09 -040 -96
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k CEN TC/278 Road Transport and Traffic Telematics Submission Knut Evensen, Q-Free
CEN TC 278 - Road Transport and Traffic Telematics 5
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k CEN DSRC Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k What is DSRC? • Dedicated Short Range Communication • Dedicated = Developed for ITS • Short-Range = 1 – 40 meters, typ 8 -10 m – 2 W EIRP ASK downlink (roadside – vehicle) – 50 m. W DPSK reflected uplink (veh – roadside) – Passive mixing reflector – no RF generated in vehicle Submission Knut Evensen, Q-Free
September 2003 ETC Application (ISO 14906) DSRC Profiles (EN 13372) DSRC Application Layer 7 (EN 12834) DSRC Data Link Layer 2 (EN 12795) DSRC Physical Layer 1 (EN 12253) Submission doc. : IEEE 802. 11 -03/0682 -00 -000 k Data/Attributes ETC functions Selection of parameters Inter-layer management Initialisation Data Transfer Logical Link Control Medium Access Control Frequency Spectrum Interference levels Modulation ++ Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k ETSI ERM TG 37 Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k ETSI ERM TG 37 • A new Topic Group dedicated to ITS communication • Very good relation to CALM • Chairman is Bob Williams • TG 37 will look at: – Spectrum matters 5 -6 GHz for Europe – Cellular convergence standards – Testing and formal protocol verification • Please see www. etsi. org ERM forum Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k ISO TC/204 Intelligent Transport Systems Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k Objectives of TC 204 include: • ITS architectures, terminology & data registrars. • Protocols and methods for communications between traffic-control & emergency-call centers, as well as to & from vehicles. • Automatic vehicle & equipment identification. • Interoperability of Location-Based information. • Characteristics & performance of ITS-related vehicleto-infrastructure and inter-vehicle communications, for driver assistance & guidance. • International, multimodal end-to-end people & freight transport. Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k Structure of TC/204 [ WG 4, 10, 14, 15, 16 of interest to comms. ] ISO/TC 204 Intelligent Transport Systems WG 1 Architecture R. K. Williams – U. K. WG 3 TICS Database Technology M. Shibata - Japan WG 4 Automatic Vehicle Identification (CEN WG 12) K. Evensen - Norway WG 5 Fee & Toll Collection (CEN WG 1) H. Stoelhorst – Netherlands WG 6 General Fleet Management Merged with WG 7 General Fleet Management & Commercial/Freight R. Sabounghi - Canada WG 8 Public Transport/Emergency A. Kiepper – U. S. A. WG 9 Integrated Transport Information, Management & Control D. Clowes – U. K. WG 10 Traveler Information Systems P. Burton – U. K. WG 11 Route Guidance & Navigation Systems Convenor TBD WG 14 Vehicle/Roadway Warning & Control Systems K. Yamada - Japan WG 15 Dedicated Short Range Communications (CEN WG 9) C. Rokitansky - Germany WG 16 Wide Area Communications/Protocols & Interfaces R. Shields – U. S. A. Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k ISO TC/204 WG 16 Wide Area Comms CALM Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k ISO TC 204 WG 16 Wide Area Communication WG 16 R. Shields SWG 16. 0 Architecture K. Evensen SWG 16. 1 CALM B. Williams SWG 16. 2 Networking H. Wakayama CALM Architect. CALM 60 GHz CALM Cellular Submission CALM Network CALM M 5 SWG 16. 3 Probe T. Kishi CALM IR Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k CALM - Overall • Continuous Air interface for Long and Medium distance • • Support continuous communications Support master/slave and peer-peer modes Support user transparent networking Support handover spanning multiple media, media providers and beacons • Very ambitious timescale – ISO test-case for fast development Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k CALM Applications • Support of Internet services – invisible handover – (mostly) media independent • Support of traditional ITS apps – media independent through DSRC L 7 • New generation of applications: – Major push in safety – Vehicle Safety Communication – New commercial applications made possible by high data rate & long range. Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k CALM -IETF • A very good liaison to the Internet Engineering Task Force has been set up • Main support from experts at Keio university T. ERNST /K. UEHARA • CALM concept is forwarded to IETF to make various groups aware of mobility requirements • IETF NEMO (Network Mobility) group is closely following CALM. Will be the contact point to IETF Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k NEMO Concept Submission Knut Evensen, Q-Free
CALM classic architecture September 2003 ISO TC 204 ITS APPLICATIONS Media Selection HTTP/ SMTP Protocols Stream & Realtime Protocols ISO DSRC L 7 TCP UDP L 2/UDP Network Switching Roaming Control Qo. S IPv 6 layer Init Hndovr Secur MAC 5 GHz Init Hndovr Secur MAC 2. 5 G Cellular Init Hndovr Secur UMTS 3 G Cellular Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k CALM abstract architecture Non-CALM-aware Point-to-point APPLICATIONS ISO 21210 -2 Directory Services SAP ISO 21210 -5 Non-CALM-aware IP (Internet) APPLICATIONS SAP CALM system Management Entity (CME) SAP Convergence Layer ISO 15628/ Convergence Layer IP socket/ SAP ISO SAP Networking Management 21210 -5 CALM-Aware APPLICATIONS SAP 21210 -5 SAP Layer 5 -7 INTERNET STANDARDS SAP NETWORK INTERFACE Routing and Media Switching based on IPv 6 SAP ISO 21210 -3 ISO 21210 -1 SAP SAP CALM 2 G Manager CALM 3 G Manager Common Station, SAP PHY, MAC, LLC Managers ISO 21210 -4 ISO 21212 ISO 21213 2 G cellular std by reference 3 G cellular std by reference SAP CALM IR Manager CALM M 5 Manager CALM MM Manager ISO 21214 ISO 21215 ISO 21216 CALM IR Media Function blocks shown above may be part of a more comprehensive communications device. - Standards that are outside CALM scope Submission SAP CALM M 5 CALM MM SAP - Service Access Point – Data Transfer In-Vehicle Net Convergence ISO 212? ? In- Vehicle Network Lower Layers - Service Access Point – Management SAP Knut Evensen, Q-Free
CALM Vehicle Architecture 1 September 2003 OBE device ITS Application INTERNET SERVICE SAP CALM Network Layer 3 -4 Firewall CME In-Vehicle App IVN DLL IVN PHY Routing Layer 5 -7 SAP CALM Network Layer 3 -4 Network Convergence IVN DLL IVN PHY IVN DLL In-vehicle OEM network ITS In-Vehicle Network CALM OBU CME SAP NME SAP Sensors and Control Convergence IVN DLL OEM G/W Layer 5 -7 Directory services Network Layer 3 -4 Routing CALM LLC CALM MAC MLME SAP PLCP/ PLME CALM M 5 PHY Network Layer 3 -4 Convergence CME SAP. OBU Routing CALM Network Layer 3 -4 SAP Convergenc SAP N-Layer NME CALM Network Layer 3 -4 CELL Netw IVN DLL CELL DLL IVN PHY Cellular PHY IVN PHY Knut Evensen, Q-Free
Implementation Architecture - Example September 2003 RESOURCE MANAGER, ISO 14906 CME ITS INTERNET APPLICATION Vehicle Apllication Application Interface ISO 15628 Socket TCP/UDP PACKET HOP (RUDP) VEHICLE COMPUTER CALM Routing CALM NETWORK LAYER – FMIPv 6 IN-VEHICLE NETWORK DATA LINK LAYER IN-VEHICLE NETWORK PHYSICAL LAYER ITS In-Vehicle Network CALM OBU CME CALM Routing Network CALM LLC GPRS Convergence DSRC Convergence GPS Convergence CALM MAC Network GPRS Stack DSRC L 2/L 7 GPS Stack CALM M 5 PHY GPRS PHY DSRC L 1 GPS PHY IVN DLL IVN PHY NME MLME PLCP/ PLME Combined Antenna Pod Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k Vehicle - Infrastructure Vehicle Computer ITS Applications CME. OBU SAP CME. VC and NME CALM Network IVN DLL IVN PHY Submission NME SAP CALM OBU Routing SAP Network NME CALM LLC IVN DLL MLME PLCP/SAP PLME IVN PHY CME. BS CALM MAC M 5 PHY SAP CALM BASE STATION Routing SAP Network CALM LLC CALM MAC MLME PLCP/ SAP PLME M 5 PHY Network Fixed network DLL Fixed net PHY Infrastruct Server ITS Applications CME. IS and NME CALM Network Fixed network DLL Fixed net PHY Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k Vehicle - Vehicle Computer V-V Applications CME. OBU SAP CME. VC and NME CALM Network IVN DLL IVN PHY Submission NME SAP CALM OBU Routing SAP Network CME. OBU SAP Network NME CALM LLC IVN DLL MLME PLCP/SAP PLME IVN PHY CALM OBU CALM MAC M 5 PHY SAP Routing SAP Network CALM LLC CALM MAC MLME PLCP/ SAP PLME M 5 PHY IVN DLL IVN PHY Vehicle Computer V-V Applications CME. VC and NME CALM Network IVN DLL IVN PHY Knut Evensen, Q-Free
Infrastructure Architecture example September 2003 HA Corresponding Node Home Domain Internet Domain C Domain A Domain B BASE STATION (Access Point or RSU) Vehicle - OBU Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k CALM M 5 Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k Why the 5 GHz spectrum? • Some spectrum available in all countries: – car unit for global market! • Radio - penetrate walls and “bend around corners” • Based on 802. 11 W-LAN standards: – Many suppliers – no single source problem – Low cost due to competition, high volume and mainstream components – High reliability due to proven performance and mature developments of 802. 11 • High performance from day one: – 6 -54 Mbit/s data rate – 80 -1000 meters communication distance Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k Why 5 GHz – cont. • 802. 11 standards are optimised for both: – ad-hoc (vehicle-vehicle) as well as – central communication (vehicle-infrastructure) • Many channels are globally available – physically separated and non-interfering : – Dedicated channels for emergency and safety applications to avoid contention and interference – Other channels for less critical Internet access and information downloads – A group of vehicles in a “moving network” can share one channel, and pass another moving network without any disruption. Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k Why 5 GHz – cont • The vehicle can commiunicate with normal IEEE 802. 11 a access points – your vehicle can access your normal home W-LAN – even through the walls. GARAGE An IEEE 802. 11 a WLAN radio transfers data directly to an IEEE 802. 11 a capable vehicle OBU using a channel in the UNII band. SINGLE FAMILY HOUSE Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k Extract from formal scope: • • CALM-M 5 ISO 21215 : Medium and long range, high speed, air interface parameters and protocols for broadcast, point-point, vehicle-vehicle, and vehicle-point communications in the ITS Sector using MICROWAVE COMMUNICATIONS at 5 GHz, including specifications for Master/Slave and Peer to Peer Communications. The work item will specify the required communication architecture, interfaces, parameters and protocols for the – Physical Layer – Data Link Layer: Medium Access Control (MAC) and Logical Link Control (LLC) • • Wherever practicable, this Standard will be developed by reference to suitable extant Standards, adopted by selection. Required regional variations will be provided. Due account will be given to, and use made of, any relevant parts of appropriate communications systems, such as Global Positioning Systems (GPS), Digital Audio Broadcasting (DAB), Digital Video Broadcasting (DVB), Digital Data Broadcasting (DDB), TETRA, Mobile Broadband Systems (MBS, W-ATM), WLANs, Internet Protocols, and of course, DSRC. Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k Scope of CALM M 5 • The standard: – shall use microwaves in the 5 GHz band as the transmission medium between (moving or stationary) vehicles and a roadside communications-infrastructure or other (moving or stationary) vehicles; – shall minimise harmful interference with standardised regional radio unit in this spectrum, e. g. no harmful cross-interference with regional DSRC standards; Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k Scope of CALM M 5 • The Standard: – shall support vehicle speeds to a minimum of 200 km/h; – shall define or reference environmental parameters relevant to link operation; – shall support latencies and communication delays in the order of milliseconds; – shall be adaptable to regional/national regulatory parameters; – may support other regional/national parameters as applicable. Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k 5 GHz Band Spectrum Europe Japan North Ameri ISM band CALM M 5 Unlicen. W-LAN Dedicated ITS (DSRC) Submission Partly available regionally: ISM + shared unlicenced Requested from ITU: Global ITS Safety allocation 5. 85 -5. 925 Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k Spectrum M 5 • For global use, the OBUs shall: – Be capable of operating within the range of 5. 15 GHz to 5. 925 GHz – Support both 10 and 20 MHz channels – Support accurate transmit power control • RSUs will operate on the regionally allocated frequencies. Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k Global M 5 spectrum config. • The mobile unit (OBU) shall be configurable when moving between regulatory areas • The OBU shall not start operation until an authorised source (e. g. fixed, licensed RSU) has provided profile information. • Profiles may be autonomously initiated if the OBU can ascertain its position. Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k M 5 Access Methods • National regulatory bodies can place limitations on channel utilisation and maximum channel usage on a per channel basis, and the unit shall be configurable / programmable to operate within these limitations. Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k M 5 Directivity • CALM M 5 include omni-directional as well as directive patterns. • The standard allow control of multi-sector directed antenna elements. • The standard allow simultaneous operation on multiple channels in the same or different directions. Submission Knut Evensen, Q-Free
September 2003 doc. : IEEE 802. 11 -03/0682 -00 -000 k Conclusion • CALM M 5 - likely candidate for the next high-volume ITS communication medium • The public safety applications requires global spectrum allocations. A liaison (formal? ) to IEEE Tg! Submission Knut Evensen, Q-Free
Скачать презентацию September 2003 doc IEEE 802 11 -03 0682
949da2f8102344f5d59489383bb22737.ppt