WAP Presentation Ver2
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Transcript of WAP Presentation Ver2
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10.2.2005 T-110.456 WAP Lecture 1
Wireless ApplicationProtocol - WAP
Nie Ping & Zhou Hu
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10.2.2005 T-110.456 WAP Lecture 2
Content
WSP
WTP WDP
Negative voice and Evolution
WAP future
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10.2.2005 T-110.456 WAP Lecture 3
WAP stack
HTMLJavaScrip
HTTP
TLS-SSL
TCP/IP
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10.2.2005 T-110.456 WAP Lecture 4
WSP
WSP Wireless Session Protocol
WSP is binary form of HTTP offering HTTP 1.1functionality
Long-lived session, session suspend/resume
Optimized for low-bandwidth and long latency.
Push functions
Asychronized requests
Encoding: the number 0x87A5 (1000 0111 1010 0101)is encoded in three octets.
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10.2.2005 T-110.456 WAP Lecture 5
WSP
WAP programming model
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10.2.2005 T-110.456 WAP Lecture 6
WTP
WTP Wireless Transaction Protocol
Lightweight transaction protocol Message-oriented, not stream oriented, unlike TCP
Transaction ID as Identification
Three classes of service Unreliable one way
Reliable one way
Reliable two way
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10.2.2005 T-110.456 WAP Lecture 7
WDP
WDP Wireless Datagram Protocol
The WDP protocol operates above the data capable
bearer services supported by any available network. Datagram transport service, a UDP like interface.
Multiplexing and Demultiplexing
Port number addressing Segmentation and reassembly (optional)
Error detection
As a general datagram service, WDP offers a consistentservice to the upper layer protocol (Security, Transactionand Session).
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10.2.2005 T-110.456 WAP Lecture 8
Negative voice - Mohsen Banan
Limited distribution
Door open? entry fee $27,000 Reinvent wheels,analog with WWW, binary form,
not real invention but adoption or customization
WAP is not RFC, global open and accepted. Interoperability: WTPs SAR
Efficiency: mobile browsing limited experience
Alternative? LEAP: The Lightweight and EfficientApplication Protocol
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10.2.2005 T-110.456 WAP Lecture 9
WAP future
3G brings more bandwidth, a relief of WAP
Wireless profiled TCP/IP. Networks speak IP. Fast growing and potential Asian market.
Advanced service: feature rich add value service.
Protect 2.5G operators investment
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10.2.2005 T-110.456 WAP Lecture 11
Evolution
Mobile Browsing
HTML enabled:
XHTML enabled:
WAP enabled: almost all
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10.2.2005 T-110.456 WAP Lecture 12
Reference
Interworking with TCP/IP, Douglas E.Comer
WAP Forum, OMA now. www.wapforum.org
Content Networking In The Mobile Internet, Mr.Sudhir Dixit and Mr.Tao Wu
Wap trap and LEAP, Mohsen Banan
http://electronics.howstuffworks.com/wireless-internet3.htmhttp://www.nordicwirelesswatch.com/wireless/story.html?story_id=3276http://compnetworking.about.com/od/wirelesswap/l/aa123000a.htmhttp://www.vbxml.com/wap/articles/wapart1.asphttp://www.thefeature.com/article?articleid=12400http://www.palowireless.com/wap/tutorials.asphttp://www.palowireless.com/wap/forums.asphttp://www.iec.org/online/tutorials/wap/topic05.htmlhttp://www.visualtron.com/wap_topic05.htm
http://www.mobileinfo.com/WAP/future_outlook.htm http://www.ccp14.ac.uk/solution/wap/wap_trap.html
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