英国探寻火星生命计划遭遇第二次失败，太空探测器再次没能发出成功登陆的确认信号。

A British mission trying to find life on Mars suffered a second setback when its space probe again failed to send a signal to confirm it had landed.

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介绍了BCCH载波与TCH载波的频率配置、信号衰落算法、干扰原理、动态功率控制的调节思路，以及提高网络质量，改善小区登陆与切换性能的措施。

I introduce the frequency allocation between BCCH carrier frequency and TCH, signal fading arithmetic, interference theory and the adjusting thinking of dynamic power control.

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