MOST and AVB. Two Candidates for Next Generation Automotive Infotainment Networks. MOST Forum 2013 Esslingen April 23 rd 2013

Transcription

1 MOST and AVB Two Candidates for Next Generation Automotive Infotainment Networks MOST Forum 2013 Esslingen April 23 rd 2013 Group Research & Advanced Engineering Telematics Networks, Günter Dannhäuser

2 Today MOST is integrated in 140 vehicle models of the 16 carmaker members of the MOST Cooperation 3

3 Today MOST is integrated in 140 vehicle models of the 16 carmaker members of the MOST Cooperation MOST 150 is the leading edge standard for automotive infotainment networks Daimler introduces MOST 150 Mercedes Benz New S-Class 2013 MOST 150 will be rolled out in all Mercedes Benz car models Daimler Group Research & Advanced Engineering investigates future networking technologies for the year 2020 and beyond 3

4 Future Automotive Networks Challenges Video transmission: cameras, future displays Convergence of automotive domains, ADAS Consumer device bulk data + A/V integration High data rate mobile connection Requirements Data rate: > 5Gbps (factor 200) Convergence of automotive domains: Flexible topology options Speed grades Easy to use A/V and host interfaces Complete validated hardware/software framework and ecosystem. Automotive maturity. Future-proof. Scalable. Secure. 4

5 Outline MOST Today and Next Generation AVB and AVB Concepts in a Nutshell MOST + AVB Evaluation of AVB + MOST 5

6 MOST Today MOST 150 Synchronous. Maximum QoS. No collisions. No priority conflicts. Minimal delay. Deterministic. Predictable. Simple application-level synchronization. Control channel. Isochronous channels. Packet data channels. Fully IEEE compliant Ethernet. The global de-facto standard Cooperation of more than 250 developers from over 100 companies Direct specification and implementation processes Complete and detailed specification of all layers, including test specification Complete Technology Framework Comprehensive solutions on all levels Established, well proven and robust hardware and software stacks Automotive Maturity Extensive tools ecosystem 6

7 MOST next Generation* On top of the assets of MOST 150: MOST 150 Multiport INIC All topologies, even mixed Support of various physical layers Interoperable with all MOST150 INICs MOST next Generation Convergence of networking domains Scalable from entry to high end Speed grades Legacy channels for MOST 150 Future Automotive Networks Challenges Video transmission: cameras, future displays Convergence of automotive domains, ADAS Consumer device bulk data + A/V integration High data rate mobile connection Requirements Data rate: > 5Gbps (factor 200) Convergence of automotive domains: Flexible topology options Speed grades Easy to use A/V and host interfaces Complete validated hardware/software framework and ecosystem. Automotive maturity. Future-proof. Scalable. Secure. * as presented by SMSC at MOST Forum

8 Outline MOST Today and Next Generation AVB and AVB Concepts in a Nutshell MOST + AVB Evaluation of AVB + MOST 8

9 AVB Concepts in a Nutshell IEEE Audio/Video Bridging: Time-synchronized low latency streaming services through IEEE 802 networks Time Synchronization IEEE802.1AS Stream Reservation IEEE802.1Qat Audio Video Bridging Systems IEEE802.1BA Stream Priorization IEEE802.1Qav traffic shaping talker AVB Traffic Classes: Class A: 2ms Class B: 50ms bridges Network Latency AVB traffic up to 75% best effort traffic 7 participators listener 9

10 AVB Concepts in a Nutshell IEEE Audio/Video Bridging: Time-synchronized low latency streaming services through IEEE 802 networks Time Synchronization IEEE802.1AS Stream Reservation IEEE802.1Qat Audio Video Bridging Systems IEEE802.1BA Stream Priorization IEEE802.1Qav traffic shaping talker Timestamping Clock-Synchronisation <1µs bridges 7 participators listener Network Latency AVB Traffic Classes: Class A: 2ms Class B: 50ms AVB traffic up to 75% best effort traffic 9

11 AVB Concepts in a Nutshell IEEE Audio/Video Bridging: Time-synchronized low latency streaming services through IEEE 802 networks Time Synchronization Stream Reservation IEEE802.1AS IEEE802.1Qat Audio Video Bridging Systems IEEE802.1BA Stream Priorization IEEE802.1Qav traffic shaping talker Timestamping Clock-Synchronisation <1µs bridges 7 participators listener Network Latency AVB Traffic Classes: Class A: 2ms Class B: 50ms AVB traffic up to 75% best effort traffic 9

12 AVB Concepts in a Nutshell IEEE Audio/Video Bridging: Time-synchronized low latency streaming services through IEEE 802 networks Time Synchronization Stream Reservation IEEE802.1AS IEEE802.1Qat Audio Video Bridging Systems IEEE802.1BA Stream Priorization IEEE802.1Qav traffic shaping talker Timestamping Clock-Synchronisation <1µs bridges 7 participators listener Network Latency AVB Traffic Classes: Class A: 2ms Class B: 50ms AVB traffic up to 75% best effort traffic 9

13 MOST + AVB solving Audio/Video streaming Application 7 synchronized Audio/Video Streaming MPEG2-TS (etc.) MOST Streaming Channels IEEE 1722: Layer RTP, RTCP 2 AVB transport protocol AVB Synchronous network layer Presentation 6 Session 5 Transport 4 Network 3 Data Link 2 MOST INIC Interoperation TCP, UDP IPv4, IPv6 IEEE AVB MAC Synchronized network layer Physical 1 MOST ophy, ephy IEEE 802 PHY e.g Ethernet 10

14 Outline MOST Today and Next Generation AVB and AVB Concepts in a Nutshell MOST + AVB Evaluation of AVB + MOST 11

15 Evaluation of AVB AVB is becoming available in CE Evaluate AVB state of the art on standard hardware/software Get experience and learn from AVB concepts and implementations Compare system behavior to standards specification and simulation Test performance in high load scenarios AVB Domain AVB Automotive Profile Evaluate options to tailor AVB for automotive usage scenarios Dynamic automotive environment Research on strengths and weaknesses of AVB to be able to understand its implications for MOST ng Display CE 12

16 Evaluation of AVB interoperation with MOST MOST Domain AVB Domain MOST 150 MOST ng Display CE 13

17 Evaluation of AVB interoperation with MOST AVB + MOST Evaluate possibilities to integrate AVB with MOST Aptitude of MOST isochronous QoS packet channel Cross-domain time-synchronization, stream reservation and transport MOST 150 MOST ng MOST Domain AVB Domain Display CE Display Display AVB Domain MOST Domain Display Display 14

18 Summary MOST 150 is the standard for automotive infotainment networking for this decade, at least Daimler Group Research & Advanced Engineering is evaluating future concepts and technologies supporting the definition of MOST ng, including: Approaches by MOST Cooperation members e.g. Multiport INIC and MOST ng concepts Implications from other proposals on MOST ng development e.g. IEEE Audio/Video Bridging 15

19 Any Questions? Thank you! 16