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Location Based MBS Service for IEEE 802.16 - IP Push Service -. 2007. 7. 23. Jongtaek Oh jtoh@hansung.ac.kr. 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. Motivation.

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Location Based MBS Service for IEEE 802.16 - IP Push Service -

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Location Based MBS Service for IEEE 802.16- IP Push Service -

2007. 7. 23.

Jongtaek Oh



  • 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


  • 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

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

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 !

Network Configuration for LB MBS

BS with IP2


Broadcasting server


BS with IP1




BS :Base Station

AR :Access Router

MS :Mobile Station

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

Terminal Initiation for LB MBS


6) Quit after time out

3) Req. Broadcasting

Broadcasting server




4) Broadcasting data

5) Data Broadcasting

1) Broadcasting Announcement

2) Req. Broadcasting

* This seems like multicasting protocol,

but more simple, and no need of many

multicasting addresses.

Comparison of Network Traffic


Unicasting method

Total Traffic

LB MBS method

LB MBS with Terminal Trigger

No. of Terminals ( No. of BSs)

Broadcast HyperText, Graphic,

Image, Sound,

and even Alerting data


Bus Stop

Seoul City Tour


* Special menu of

nearby restaurant

- Sea food spaghetti

- Herb bibimbab

- Original pizza

- Hot cold noodle

Korean Restaurant

Nearby historic spot is ….

Click !




Magic cap



Tour Bus

Just click now!

from just seeing into interactive service


This statue is ...

Killer Applications

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


  • Local Information Service Protocol using WLAN, TTAS.KO-06.0116, Oct. 20. 2006.

  • Report ITU-R M.[IP CHAR]:Key technical and operational characteristics for access technologiesto 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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