Thomas Kunz
Systems and Computer Engineering
23
WDP: Wireless Datagram Protocol
nProtocol of the transport layer within the WAP
architecture
–uses
directly transports mechanisms of different network technologies
–offers a
common interface for higher layer protocols
–allows for
transparent communication using different transport technologies (GSM
[SMS, CSD, USSD, GPRS, ...], IS-136, TETRA, DECT, PHS, IS-95, ...)
nGoals of WDP
–create a
worldwide interoperable transport system with the help of WDP adapted to the different underlying technologies
–transmission
services such as SMS, GPRS in GSM might change, new services can replace the old ones
nAdditionally, WCMP (wireless Control Message Protocol)
is used for control/error
report (similar to ICMP in the TCP/IP protocol suite)