有一个问题一直没有搞明白,在2G,3G阶段,在频段的配置上,一般偏低频是发射段,偏高频的是接收段,比如UMTS 2100,其发射段为1920~1980,接收段为2110~2170,然而在LTE频段上(主要指的是FDD),有些低频段正好反过来了,比如FDD Band 20,其发射段为832~862,接收段为791~821,这种设置是何道理呢?哪位大牛了解这个原因?
时间: 2012-5-28 02:57
作者: jeffyko
The main reason for this(and possibly the same for band 13/14) is shown in the attached picture.
pls find enclosed CEPT report for further information.