The System Framework of Caches with Two Levels and Strong Consistency Based on GPRS Networks
Tan Ji · 2005
The main purposes of cache are saving radio bandwidth and power energy consumption in mobile wireless en- vironments. However, the roaming and frequent disconnections of the mobile terminal bring a series of new problems to cache consistency. Aiming at the GPRS network running at present, we have proposed the system framework of caches with two levels and strong consistency scheme, one level is at mobile terminal, and another is at VS (Validation Server). The framework and scheme can simplify the complexity of maintaining cache consistency in mobile wireless environments, reduce the radio bandwidth consumption and the workload of database server efficiently, support the ar- bitrary disconnection intervals of mobile terminal and roaming in a Public Land Mobile Network, and have good practi- cability.