Thomas Kunz
Systems and Computer Engineering
31
WAP Push Architecture with
Proxy Gateway
nPush
Access Protocol
–Content transmission between server and PPG
–First version uses HTTP
nPush
OTA (Over The Air) Protocol
–Simple, optimized
–Mapped onto WSP
Client
User Agents
Push
Proxy
Gateway
Coding,
checking
Push OTA
Protocol
Push Initiator
Push
Access
Protocol
Server
application