Innovation & Convergence, Changing the Future of Metro Wireless Communication. David Xu Enterprise Wireless General Manager

Transcription

1 Innovation & Convergence, Changing the Future of Metro Wireless Communication David Xu Enterprise Wireless General Manager

2 Existing Situation of Urban Rail Transport Wireless Communication Metro Applications CTBC Train Dispatching PIS, CCTV Broadband Data Technology Real time data transmission of CBTC Narrow Band Trunking Technology Voice, short data Broadband Data Technology PIS CCTV 2

3 Challenges Faced by Urban Rail Transport Wireless Communication Service Requirements of Urban Rail Transport CBTC:Bidirectional real-time transmission of train control information Video transfer in train and along railway Train Dispatching PIS:Real-time broadcast of video, information, and disaster emergency Current Challenges 1. Free & open frequencies, and more interference source 2. No QoS guarantee mechanism 3. More sites, and difficult maintenance in tunnel 4. 3 independent networks, and high operation costs 5. Only voice, and no data& video dispatching 6. No ways to guarantee better service performance in high mobility 3

4 Huawei s Innovation Progress Together with Zhengzhou Rail Transport Company Staring Point Discussion about PIS and Ground-to-Train communication solution Acquired 1.8Ghz Frequency Applied for frequency band (1795M- 1805M) for Ground-to-Train wireless communication Signed Cooperation Agreement Signed innovation agreement of Ground-to-Train communication solution by two parties Passed Technical Innovation Demonstration Huawei LTE metro Ground-to-Train communication solution was adopted Innovation Approval Project innovation approved by Huawei, and coming into implementation phase Project Launch Joint commercial launch 4

5 Huawei elte Urban Rail Transport Solution: Innovation & Convergence, Changing the Future of Metro Wireless Communication Innovation Mainstream Technology, First launch globally Advanced anti-interference technologies in air interface Multi-level QoS algorithms High mobility, and seamless handover algorithms Convergence One network to bear PIS, CCTV, broadband trunking, and CBTC simultaneously Broadband trunking to support voice & video dispatching simultaneously Convergence of broadband trunking & video conferencing Change Safe Operation Specialized anti-interference tecnologies Multi-level QoS algorithms High mobility, large coverage, and seamless handover Agile Dispatching Visualized dispatching to ensure real scene visible, command directing up to group members Convergence of broadband trunking & video conferencing, and fast decision Convenient Travelling PIS over LTE to support real-time passenger information, and news broadcast CCTV over LTE to know & control onsite emergency Telepresence over LTE: telepresence & video conferencing convergence 5

6 Effective Anti-interference Technologies to Improve Onboard Service Experiences & Driving Safety Better LTE channel structure than Wifi LTE:Scheduling based 15k subcarriers, and 20Mhz networking WiFi: Scheduling based 20M bandwidth,20*7=140m networking WiFi LTE Better LTE receiving performance than WiFi WiFi: no data receiving if signal strength < -90dbm LTE: data receiving if signal strength < -130dbm Mbps dbm Safe Operation Agile Dispatch Convenient Travelling Systematic anti-interference technologies to achieve 20dB+ gain V.S Wifi Physical layer Link Layer Network Layyer LTE Pilot detection Fast power control Interleaving MIMO HARQ Retransmission Slow power control AMC ICIC CoMP No No WiFi Open loop power control 6

7 High Mobility, Seamless Handover to Ensure Service Continuity Safe Operation Agile Dispatch Convenient Travelling WiFi: 80 km/h LTE: 200km/h 2 devices separately to access 2 networks 2 network for overlapped coverage Core Network X2 Interface Previous Cell Adjacent Cell 4 vehicle-mounted devices in connected state, another in the cell center to ensure service continuity when one in cell reselection 1~2S service interruption if more interferences in handover area Seamless handover, no data loss, and handover delay < 50ms Designing speed: 200km/h, not behind other technologies in future years 7

8 Multi-level QoS to Ensure Reliable Transmission of Key Data Service Safe Operation Agile Dispatch Convenient Travelling WiFi:Contention based QoS algorithms LTE:9-level QoS algorithms Bandwidth allocation based on service requirements WiFi No user priority CBTC PIS CCTV Trunking Voice Guarantee service QoS of the highest priority in congestion,for example, CBTC Level1 Level 2 Level 3 Level 4 Users accessing to network by free contention, and no absolute user priority About 60% packet loss rate in intra-frequency interference 100% packet loss rate if 2 interference sources, and not meeting metro service requirements CBTC Latency:100ms Tunking Packet loss:10-6 Latency:100ms PIS Packet loss:10-2 Latency:300ms Packet loss:10-6 CCTV Latency:150ms Packet loss:10-3 8

9 Voice, Video, and Data All-in-one to Greatly Improve Dispatching Efficiency Safe Operation Agile Dispatch Convenient Travelling Dispatching Center Voice Video Data Onsite Scenes Location Info Mobile Office User1 User 2 User 3 When massive data coming, convergence of elte voice, data, video to enrich dispatching services and improve dispatching efficiency 9

10 Professional Trunking performance to Ensure Agile Dispatching Group Call Setup:300ms Pre-emptive call: 150ms Group Members:+ Real-time backup, and fault protection Safe Operation Agile Dispatch Convenient Travelling LTE Group 1 Group 2 Group 3 10

11 PIS over LTE:Real-time News, Transferring Info, Online Advertisement, and Convenient Travelling Life Real-time News Transfer Info Online Advertisement Safe Operation Agile Dispatch Convenient Travelling EPC PIS System Transmission High bandwidth, low latency, and better performance to match PIS service requirements Real-time news, transfer info, and online advertisement to improve travelling convenience, and increase metro customer revenues 11

12 CCTV over LTE: Real-time Know & Control Onsite Emergency Dispatching Center Safe Operation Agile Dispatch Convenient Travelling DL 100Mbps,UL 50Mbps LTE Latency <50ms Station Rail Carriage High bandwidth, low latency to support HD video, and comprehensive surveillance of station, carriage, and rail, and quickly know and know onsite emergency 12

13 Telepresence over LTE:Quick Decision, and improving Dispatching efficiency Video Conferencing Room in Dispatching Center Safe Operation Agile Dispatch Convenient Travelling LTE Video Onsite Staff Station Dispatching Center ECV Convergence of elte and telepresence to enable visible scenes, quick meeting and decision, and improve dispatching efficiency 13

14 Innovative elte Solution for Zhengzhou Metro Center Server PIS System Dispatcher OMC Voice & Video Severs ecns600 IP Network Station Station Station LCD Switch LCD Switch LCD Switch LTE BBU LTE BBU LTE BBU Track &Train TAU LTE RRU TAU LTE RRU LTE RRU Leaky Coaxial Cable or Antenna 14

15 Comprehensive Cooperation with Rail Transport Partners CBTC PIS Customized Rail Auxiliaries IOT with CASCO, performance better than WLAN IOT with INSIGMA, full adapatation verification in moving train IOT with Neusoft, Shanghai Zhizhen, better performance Dispatcher for rail transport industry Customized rail industry devices including cab radio, and handset 15

16 Close Cooperation with Partners to Help Customers Succeed Help Customers Succeed Industry Partners Consulting & Designing Partners Partners (100+) 16

17 Innovation & Convergence, Changing the Future of Metro Wireless Communication Innovation & Convergence Safe Operation, Agile Dispatch, a and Convenient Travelling 17

18 HUAWEI ENTERPRISE ICT SOLUTIONS A BETTER WAY Copyright 2012 Huawei Technologies Co., Ltd. All Rights Reserved. The information in this document may contain predictive statements including, without limitation, statements regarding the future financial and operating results, future product portfolio, new technology, etc. There are a number of factors that could cause actual results and developments to differ materially from those expressed or implied in the predictive statements. Therefore, such information is provided for reference purpose only and constitutes neither an offer nor an acceptance. Huawei may change the information at any time without notice.