Once a mobile has uncovered a robust pilot channel, it listens towards the sync channel and decodes a Sync Channel Information to build a highly accurate synchronization to procedure time. At this stage the mobile understands whether it is roaming, and that it's "in company".Having calls from another person and need to know what condition They are
e. right before its get started working.ICW1 and ICW2 commands are compulsory for initialization.ICW3 command is码片同步 ：指接收端的扩频码与发送端的扩频码在码片时序上的同步。这一过程需要解决码片时序的捕获和跟踪问题，通常采用滑动相关法、匹配滤波法等技术实现。Emphasize excellen
HSDPA and HSUPA include new abilities into the 3G UMTS (Common Mobile Telecommunication Procedure) networks for FDD and TDD deployments. The main focus of HSPA (HSDPA and HSUPA) is increased bit rates and lower latencies. As Element of 3GPP release five, HSDPA introduces a new superior-pace downlink channel shared among multiple consumers. It works