1 / 15

An integrated mobile network supporting urban activities

ITU-T WORKSHOP “ICTs: Building the Green City of the Future” (Shanghai, China, 14 May 2010). An integrated mobile network supporting urban activities. Phan Thanh Hoa , Ritsumeikan University, Japan. Outline. From the current macro-cellular networks to different types of cellular networks

amina
Download Presentation

An integrated mobile network supporting urban activities

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ITU-T WORKSHOP “ICTs: Building the Green Cityof the Future” (Shanghai, China, 14 May 2010) An integrated mobile network supporting urban activities PhanThanhHoa, Ritsumeikan University, Japan

  2. Outline • From the current macro-cellular networks to different types of cellular networks • A new paradigm for mobile networks • A virtual single cell as the most advanced component of the integrated mobile network • Fast handover scheme in the virtual single cell • Multicast–based Logical Macro Cell as a virtual single cell • Multiple polling scheme • Support by IP-based paging network • Performance evaluation

  3. Mobile network supportingSocial activities Terminals Usage Stationary or Walking Conversation Downloading Expansion in future Fast moving - Mobile VPN: LAN extension for moving office Multimedia on cars and intelligent car-driving system - Uploading for securities like a torched camera to protect criminals

  4. Divided use of cells for ubiquitous mobile communication services Present In future Micro-cells for busy areas Micro-cells for busy areas (Wifi Hotspots) Micro-cells along major roads Release of traffic of macro-cells Macro-cells for the areas outside of micro-cells Macro-cells for general communication purposes

  5. Wide area cover with macro-cells Macro-cellular network Hot spots & Fixed Mobile Convergence into any place ：Connected micro-cells along main streets ：No micro-cell along back streets

  6. IP - based paging net The Internet Macro - cellular networks (Ordinal mobile terminals) + Vertical Connected micro - cells handover (Fast mobile terminals) + Micro - cells ( Wifi Hotspots) (Stationary terminals) New paradigm for mobile networks New paradigm Integration of cellular networks • - Connected micro-cells configuring a virtual single cell for fast movers • Vertical handover between different mobile network types • Paging to any types of cells • Response to the paging from the smallest cell

  7. Virtual single cell as a component (a) LMC (Logical Macro-Cell) as a virtual single cell unit. (M) Data and Polling response are multicast through core network R (LMC#i-1) R P S S M LMC switch-over as a virtual single cell P: Polling R: Polling response (C#i) LMC (C#i-2) (C#i-1) Handover by new-cell-polling response (M) M: Master cell S: Sub cell (LMC#i) S S M S S M (C#i-2) (C#i+1) (C#i-1) (C#i) (b) Virtual single cell with Concatenated LMC. P&R LMC#i-1 LMC#i - LMC#i+1

  8. Switchover of Logical Macro Cell

  9. PON as a terrestrial network of connected micro-cells network Office LAN The Internet VPN Agent VPN (OLT) Server Trunk fibers Splitter under control of an OLT. ONU ONU ONU Virtual single LAN covering service area with a diameter of 40km PON: Passive Optical Network OLT: Optical Line Terminal ONU: Optical Network Unit

  10. Multicastingscenario for LMCs (a) Location DB . Serving BS MT address MT # i Previous BS Serving BS MT address Previous BS MT # j Previous BS MT address Serving BS MT # k D D D R R R LMCid#k LMCid#k LMCid#k Header R R R R D D D Looking up the mapping Table Central Control Node (4) (4) (4) (3) (5) (5) (5) BSk+1 BS#k-1 BS#k P P Timeout without Response P (1) R Timeout without Response (1) (1) (2)

  11. Avoidance of inefficient pollingtaking advantage of IP-based paging Call IP-based paging network The Internet Paging service request Paging Waiting for call Dormant Mobile network Active session Mobile terminal Request with AP registration. • Cease of polling when no packet transfer continues • Restart of polling after the registration from the terminal side • Paging and registration when called from the network side

  12. Handover latency Multiple polling

  13. Normal polling Multiple- polling 1000 bytes 500 bytes 200 bytes Overhead caused by multiple polling

  14. Affection of polling response multicast delay

  15. Concluding remarks Integrated mobile network and the IP-based paging network at the core will be a main scenario in the future mobile network Virtual single cell as an innovation in the integrated mobile network Virtual single cell can reduce traffic in the macro-cellular network Virtual single cell allows high bit rate packet transfer to fast MT though it sacrifices a portion of BS throughput There can be hopeful mobile services like mobile LAN office

More Related