ABSTRACT
In a mobile and wireless environment, efficient and consistent data access is a challenging research area because of the weak connectivity and resource constraints. The mobile data access strategies can be essentially distinguished by delivery modes. The modes for server delivery can be described as client pull, server push, or hybrid:
Client pull
(sometimes called
on-demand access mode
) — A mobile client first submits a query via the uplink channel and then “pulls” data, from the server through a wireless network (the downlink channel), in the same manner as in a traditional client-server system.
