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请教基站21M开通后是否会出现覆盖收缩的情况?
提问者:hustxdy1979   |  提问时间:2011-8-11 14:10
网上有人说开启21M后,载波的输出功率会减弱,覆盖会自动收缩。 按理说只有在开双载波,且整个小区输出功率不变的情况下,才会因为载波功率平均分配,导致一个载波的功率下降3dB。 但是广播信道如果在两个载波上都发射,终端采用MRC或者branch select都可以弥补这个功率下降啊。 请教各位牛人
如果用dual cell,是会缩小吧。但如果只是用64QAM,覆盖没变啊。
回答时间:2011-8-12 08:29
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118.249.111.*  |  回应时间:2011-11-11 18:29
 
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