...共分组信道 CPCS Common Part Convergence Sublayer 公共部分汇聚子层，公共汇聚子层 CPICH Common Pilot Channel 公共导频信道 CRC Cyclic Redundancy Check 循环冗余校验（法） ..
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Common Pilot Channel CPICH 公共导引信道
CPICH Common Pilot Indicator Channel 公共导频指示信道
Because there is no power control in CPICH, the received common pilot signal power is possibly very low if the mobile is far from the base station, and this time the channel estimates is inaccurate.
由于公共导频信道无功率控制，有可能在接收端接收到的公共导频信号的功率很低，使得信道估计的误差变大。
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