• Share
  • Email
  • Embed
  • Like
  • Save
  • Private Content
User mobility and location management
 

User mobility and location management

on

  • 3,300 views

IP and mobility

IP and mobility
Location determination
Location data access

Statistics

Views

Total Views
3,300
Views on SlideShare
3,281
Embed Views
19

Actions

Likes
2
Downloads
0
Comments
0

3 Embeds 19

http://www.slideshare.net 10
http://www.techgig.com 7
http://g9576617.blogspot.com 2

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    User mobility and location management User mobility and location management Presentation Transcript

    • User mobility and Location management Present: Chen Jen
    • Outline
      • Introduction
      • IP and mobility
      • Location determination
      • Location data access
    • Introduction
      • Maintain an IP connection when roaming between network
      • Describe handset-based and network-base to determine mobile user location.
      • Location track approaches.
    • Outline
      • Introduction
      • IP and mobility
      • Location determination
      • Location data access
    • IP and mobility
      • Introduction
      • Mobile IP packet routing
      • Agent discovery and registration
    • Introduction(1)
      • IP is network interface
      • It is unique
      • Network prefix and host portion consist an IP
      • For example: IPv4 is 32bits address 128.32.17.25
      Network prefix Host portion
    • Introduction(2)
      • New version is IPv6
      • It is 128bits
      • Mobile operators are strong advocate the IPv6
    • IP and mobility
      • Introduction
      • Mobile IP packet routing
      • Agent discovery and registration
    • Mobile IP packet routing
    • IP and mobility
      • Introduction
      • Mobile IP packet routing
      • Agent discovery and registration
    • Agent discovery and registration
      • Mobile terminal need listen “ agent advertisements ”
      • If no hear any things,it can issue “ agent solicitation ”
      • If no response, it can be assigned internet address by DHCP
    • Agent discovery and registration
      • IPv4 need foreign agent
      • IPv6 no need foreign agent
      • Terminal run “ duplicate address detection ” algorithm to be assigned address
    • Outline
      • Introduction
      • IP and mobility
      • Location determination
      • Location data access
    • Location determination
      • Introduction
      • Handset-based position determination
      • Network-based position determination
    • Introduction(1)
      • Geocode includes
        • Latitude
        • Longitude
        • Altitude
      • Geocodes can be expressed
        • Decimal form
        • Nautical form
    • Introduction(2)
    • Introduction(3) Nautical form: 42 º2’47”N 87º41’40”W Decimal form: Latitude 42.04635 Longitude -8769454
    • Introduction(4)
      • Three wireless location technologies for 3G network
        • Cell-ID-based method
        • Observed Time Difference of Arrival (OTDOA)
        • Assisted Global Positioning System (A-GPS)
    • Location determination
      • Introduction
      • Handset-based position determination
      • Network-based position determination
    • Handset-based position determination
      • Use mobile terminal to compute position
        • OTDOA positioning
        • GPS positioning
    • OTDOA positioning(1)
      • Use two pairs of cell sites to sent each corresponding time
      • Measurement use difference of arrival time to draw a hyperbolic locus
      • The intersection of the two hyperbolic loci determines position
    • OTDOA positioning(2)
    • Handset-based position determination
      • Use mobile terminal to compute position
        • OTDOA positioning
        • GPS positioning
    • GPS positioning(1)
      • A satellite navigation system
      • Total of 24 GPS satellites
      • Only need four GPS satellites to compute position
      • Galileo will own 27 operational satellites in 2008
    • GPS positioning(2)
      • GPS main errors are
        • Signal propagation delays
        • Multipath fading
      • More accurate position computations were introduced
        • Differential GPS (D-GPS)
        • Assisted GPS (A-GPS)
    • GPS positioning(3) D-GPS
    • GPS positioning(4) A-GPS
    • Location determination
      • Introduction
      • Handset-based position determination
      • Network-based position determination
    • Network-based position determination(1)
      • No require upgrades
      • Cell sites need special equipment
      • Cell identification(cell-ID) is most basic and inaccurate
      • Accuracy of cell-ID is about
        • 150 meters in urban area
        • 30 kilometers in rural areas
    • Network-based position determination(2)
      • Network-based OTDOA discriminate
        • Location Measurement Units (LMUs)
        • Location Service Center (LSC)
      • LMUs record time of arrival of radio signals
      • LSC compute the LMUs hyperbolic locus and intersectional point
    • Network-based position determination(3)
    • Outline
      • Introduction
      • IP and mobility
      • Location determination
      • Location data access
    • Location data access (1)
      • Standard location immediate service
      • Emergency location immediate service
      • Standard location reporting service
      • Emergency location reporting service
      • Triggered location reporting service
    • Location data access (2) POI =Point of interest