We developed an OPNET model for GPRS The model implemented various GPRS-specific protocols We presented implementation of two additional protocols in an existing GPRS model: RLC/MAC BSSGP Three simulated scenarios were used to verify t

GPRS技术资料，描述了GPRS技术的网络模型，协议及技术原理、安全性能内容。-GPRS technical data describing the network model of GPRS technology, protocols and technical principles, security content.