Short for
WAP Datagram Protocol, a network-layer
protocol for delivering
datagrams over a wireless
IP network. Modeled after
UDP, WDP provides a common
interface to the upper layers of the
protocol stack so that they can function independently of the wireless bearer networks (such as
SMS,
CDPD, and
GPRS) being used by the sender and receiver of the transmissions. WDP performs three basic tasks:
port addressing, segmentation of datagrams and the subsequent reassembly of the packets at the receiving end, and error reporting. Unlike other protocols, WDP does not confirm datagram delivery, resend lost packets or correct errors that occur during transmission.