Push architecture
This technical report defines methods for supporting push services by 3GPP bearers. The mechanisms defined apply to existing bearers for the 3GPP Packet Switched Domain (PS domain), Circuit-Switched Domain (CS Domain), and the IP Multimedia Core Network Subsystem (IMS), Multimedia Broadcast Multicast Service, and Wireless LAN. This technical report addresses the requirements for supported push services as defined in 3GPP TS 22.174 Push Service; Service aspects (Stage 1). Any necessary changes identified during this work will be introduced by means of CRs to the appropriate specifications.
Definition of push functions that apply to push application servers is outside the scope of this work. The definition of push functions that are best implemented in push application servers such as a Push Proxy and Push Initiator will be undertaken by other standards bodies and industry forums.