Transcript PPT Version

Location Based MBS Service
for IEEE 802.16
- IP Push Service 2007. 7. 23.
Jongtaek Oh
[email protected]
Contents
 Motivation
 Technical description of LB MBS
 Killer applications for LB MBS
 Proposed working method
– New RFC on LB MBS over IEEE 802.16 Networks
 References
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Hansung Univ.
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Motivation
 Considering IEEE 802.16 radio system as;
– Broadband wireless service system
– Fixed Wireless Access or mobile communication system
applications
– Service convergence with IP network as core network
– Competition with cellular network
– Prominent prospects on Broadcasting and LBS
 Necessity of new killer applications – Location
Based MBS
– Keeping existing protocols with additional functions in BS
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Hansung Univ.
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Limitations for Internet Broadcasting
 Necessity of unique IP address
– Not enough IP addresses to be assigned
– Difficulty of managing IP addresses, especially for mobile unit
 Client-server model : Client access & request to server.
– Necessity of pre-knowledge of web site address of server (even
multicasting IP address)
– Every time click is needed to request information.
– So much load to server and network as increasing number of users
 Not enough solutions for broadcasting
 Not enough solutions for user location information
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Hansung Univ.
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Benefits of LB MBS
 No necessity of receiver IP address
– No DHCP server
– No IP address managing
– No limitation of number of receivers
 No necessity of pre-knowledge of web site address &
information request
– Just listening and tuning of broadcast data
 Less load for broadcasting server
– Sending datagram to each RAS not to terminals
 Less traffic generation to network
 No privacy problem of user location information
 No violations to existing protocols !
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Hansung Univ.
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Network Configuration for LB MBS
BS with IP2
AR
Broadcasting server
Internet
BS with IP1
Unicasting
MS
Broadcasting
BS :Base Station
AR :Access Router
MS :Mobile Station
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Hansung Univ.
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Control Message
 Control field for broadcasting parameters of AR
– Optional protocol between server and AR
– repetition period, repetition duration, & priority control
– authentication, scrambling, etc.
 Type of data field
– Message format between server and terminals
– According to this, users can filter interesting data only.
– Terminals can use for their own purposes.
Control field type of data field
broadcast data
Simplified format of UDP data field
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Hansung Univ.
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Terminal Initiation for LB MBS
timer
6) Quit after time out
3) Req. Broadcasting
Broadcasting server
4) Broadcasting data
AR
BS
Internet
5) Data Broadcasting
1) Broadcasting Announcement
* This seems like multicasting protocol,
but more simple, and no need of many
multicasting addresses.
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Hansung Univ.
2) Req. Broadcasting
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Total Traffic
Comparison of Network Traffic
Conventional
Unicasting method
LB MBS method
LB MBS with Terminal Trigger
No. of Terminals (
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Hansung Univ.
 No. of BSs)
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Killer Applications
Broadcast HyperText, Graphic,
Image, Sound,
and even Alerting data
FIRE
EXIT
* Special menu of
nearby restaurant
Korean Restaurant
Click
-
Special
price
W5,000
!
Sea food spaghetti
Herb bibimbab
Original pizza
Hot cold noodle
from just seeing
ESCAPE !
into interactive service
Bus Stop
Seoul City Tour
Magic cap
W50,000
Tour Bus
repeating
Just click now!
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Hansung Univ.
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Framework of Proposed New RFC
on LB MBS over IEEE 802.16 Networks
–
–
–
–
–
–
–
Introduction
IEEE 802.16 network model for location based MBS service
Functional requirements for the network components
Message format for the location based MBS service
Optional triggering protocol
Application services of the location based MBS service
References
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Hansung Univ.
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References
 Local Information Service Protocol using WLAN,
TTAS.KO-06.0116, Oct. 20. 2006.
 Report ITU-R M.[IP CHAR]:Key technical and operati
onal characteristics for access technologies
to support IP applications over mobile systems, ITU-R
WP 8A/WP 8F, May 2007.
 A Scheme for Location-Based Internet Broadcasting
and its Applications, accepted for publication in IEEE
Comm. Mag., July, 2007.
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Hansung Univ.
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