A REVIEW OF HIGH-SPEED PACKET DATA

HSDPA and HSUPA insert new abilities for the 3G UMTS (Common Mobile Telecommunication Method) networks for FDD and TDD deployments. The main target of HSPA (HSDPA and HSUPA) is bigger little bit rates and reduce latencies. As Component of 3GPP launch five, HSDPA introduces a new large-pace downlink channel shared between multiple end users. It uses

The paging channel consists of signaling messages transmitted from your network to all idle mobiles. A set of messages connect detailed network overhead into the mobiles, circulating this facts though the paging channel is no cost.开环功率控制 ： 开环功率控制是基于接收信号强度的预测进行的，它不需要反馈信息。在