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关于LTE-TDD transmitter transient period的问题
提问者:longsteg   |  提问时间:2011-9-30 16:02
transmitter transient period(TTP,不举期)协议上要求不超过17us,对于下行->上行,可以认为这个TTP是含在了GP里面,虽然GP从道理上说主要是为了避免基站之间的干扰,但同时也确实掩盖了不举期,所以GP=小区半径×2/光速 +TTP。 上行->下行,这个不举期也是存在的,但从帧结构上看是连续的,为什么?为什么不体现这个不举期? 谢谢!
Transient period of Rx->Tx at eNB side exists and also contained in GP.
Although I can not fully understand yet, I can show you the paragraph from book , [Section 23.4.1, Page 567] reads:

Overall, the total guard time TG at a TDD eNodeB per uplink-downlink cycle is equal
to the sum of TG1 and TG2, as given by Equation (23.11). In the LTE specifications this
is represented by a single guard period amalgamating both parts (with the uplink subframe
timing advanced by an amount TG2 at the eNodeB with respect to the downlink timing). This
is only a matter of representation, however, and the end result is essentially identical to the
presence of the two separate guard periods:
回答时间:2011-10-10 13:48
 
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