Sept 14 19 2003 doc IEEE 802 11

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Local Broadcasting Service using Wireless LAN Jongtaek Oh (Hansung University) Jaewoo Lim (Radio Research Laboratory) Submission / Proprietary 1 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Add on Value Added Services to Wireless LAN Network to proliferate the market Submission / Proprietary 2 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Contents • Limitations of Internet services • Killer applications for local information broadcasting • Local broadcasting using wireless LAN • Comparison with the other solutions • Further work Submission / Proprietary 3 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Internet Services • Unicast service – point to point delivery • Multicast service – point to (specific) multi-point delivery – necessity of multicasting routers (not available now) • Broadcast service – point to (non-specific) multi-point delivery – causing too much traffic Submission / Proprietary 4 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Basic limitations of Internet Services • Necessity of unique IP address – lack of IP addresses to be assigned – difficulty of managing IP addresses, especially for mobile unit • Client-server model : server access & request – necessity of pre-knowledge of web site address – Every time click is needed to request information. – so much load to server as increasing number of users Submission / Proprietary 5 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Application of Wireless LAN • Ubiquitous deployment of Wireless LAN • Easy access method to mobile users • Small radio zone – Proper solution to provide local information • Current application of wireless LAN – Just Internet connection service => limited number of users • Proposed new application – Local information broadcasting Submission / Proprietary 6 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Simple Bridging between Broadcasting and Internet Connection * Special menu of nearby restaurant Broadcast Text, Graphic, Image, Sound, even Alerting data Korean Restaurant Special price W 5, 000 - Sea food spaghetti - Herb bibimbab lick! c - Italian pizza - Hot cold noodle from just seeing into interactive service - Broadcasting service + Interactive communication service with unique communication network (WLAN) Submission / Proprietary 7 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Killer applications (1) • Local shopping information services - As users pass through the street, they get the information about shopping, entertainment, restaurant nearby. Submission / Proprietary 8 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Killer applications (2) • Sight seeing information service b ear ric isto yh N sp Bus Stop Seoul City Tour . s… ot i Tour Bus This statue is . . . - Informational guidance according to the geographic spot and article. - It consists of text, image, and sound. Submission / Proprietary 9 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Killer applications (3) • Disaster relief guiding services FIRE battery EXIT ESCAPE ! - With data storage and battery equipped in the AP, emergency information can be broadcast for a while, without power supply and network connection. - User terminal can be awakened with alerting signal. Submission / Proprietary 10 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Killer applications (4) • Advertising business Magic cap W 5 0, 0 00 Just click now! Banner ad. - Internet shopping and advertising business like cable TV Submission / Proprietary 11 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Killer applications (5) • Local traffic information services for drivers repeating - Broadcasting service for local traffic information. No click for requesting data is needed. - The data should be provided to the drivers at least once within the radio zone. So repeated broadcasting is necessary with internal data storage of AP. - Mobility with WLAN is already approved with experiment by several operators. Submission / Proprietary 12 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Benefits for users • Convenience – Just turn on & see the local information (No click needed !) – Broadcasting & interactive service – Easy & low cost broadcasting services : music, digital contents, advertisement, announcement, etc. • Security – No location privacy problem Submission / Proprietary 13 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Benefits for operators • Efficiency – Just send local information to APs by Internet (No need to find user’s location !) – Low load to server & (wire line & wireless) network – Repetitive broadcasting with a few traffic load • Easy operation – No need to handle user’s IP address (Even IP address is not needed !) Submission / Proprietary 14 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Benefits of Local Information Broadcasting using Wireless LAN • 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 – Just listening and tuning of broadcast data • Less load for broadcasting server – Sending datagram to each Access Point not to terminal • Less traffic generation to network Submission / Proprietary 15 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Network Configuration AP with IP 2 Broadcasting server 1 Internet AP with IP 1 Broadcasting server 2 Submission / Proprietary 16 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Network Configuration Functions of Broadcasting Server AP with IP 2 Broadcasting server 1 Internet AP with IP 1 Broadcasting server 2 Submission / Proprietary 17 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Datagram Format & Protocol Stack Protocol ID Dest. IP addr Source IP addr UDP port No. UDP data Internet Datagram Format Application UDP IP MAC PHY L MAC M PHY E IP Addr. Trans. Internet AP Server Application UDP IP MAC PHY Terminal Protocol Stack Submission / Proprietary 18 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Control Information • Controls broadcasting parameters of AP – repetition period – repetition duration – priority control, authentication, & charging • Type of data – Users can filter interesting data only. – Terminals can use for their own purposes. Control flags type of data field broadcast data Simplified UDP datagram Format Submission / Proprietary 19 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Block Diagram of AP Controller IP address translator Data storage (optional) New Block Existing Block Battery (optional) Submission / Proprietary Ethernet or ADSL connection Wireless LAN 20 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Network Configuration Functions of Terminal AP with IP 2 Broadcasting server 1 Internet AP with IP 1 Broadcasting server 2 Submission / Proprietary 21 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Demo program in Windows Submission / Proprietary 22 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Competitive Technology (1) Local portal (2) Automatically connecting the PDA to the local portal AP Server Internet (1) Finding user location with assigned IP address to PDA AP ide Seoul gu - tour - food ping - shop (4) Click to move to get information uide Pusan g r u to - food ping - shop ide Pusanl gu - tour - food ping - shop ide Seoul gu - tour - food ping - shop (3) Browsing the portal of local information Submission / Proprietary 23 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Competitive Technology (2) Multicasting (1) Temporal IP address assignment AP Server Internet AP (3) Receiving multicasting datagram (2) Multicasting registration Submission / Proprietary 24 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Comparison with Competitive Solutions Submission / Proprietary 25 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Adaptation to wireless & wired network • The proposed technology can be applied to all kind of wireless Internet termination. – 2. 3 GHz Wireless Internet, 3 G All IP Network, Bluetooth, UWB, WLL, DSRC, Broadcasting System, etc. • This technology is most efficient method for local broadcasting for the wireless network whose backbone is Internet. • This technology can be also applied to router / switch for the applications of local broadcasting. Submission / Proprietary 26 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Further Work • • Making prototype system Defining broadcasting packet header format Providing contents to be broadcast Building business model for operators Submission / Proprietary 27 J. T Oh, Hansung, J. W Lim, RRL

Sept. 14 -19, 2003 doc. : IEEE 802. 11 -03/ Thank you ! • E-mail address of authors – Jongtaek Oh professor of Hansung University, Seoul, Korea. jtoh@hansung. ac. kr – Jaewoo Lim Researcher of Radio Research Lab. Min. of Information & Communication, Seoul, Korea. jwlim@rrl. go. kr Submission / Proprietary 28 J. T Oh, Hansung, J. W Lim, RRL