Welcome to World of Communication. This channel is a joint effort of a group of engineers who are eager to share their knowledge. When we started our career we couldn’t find proper learning videos on LTE(Long term Evolution). This is a small effort so that the coming generations do not face the problems that we faced. Our mission is to provide in depth knowledge of LTE related stuffs.
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2:25,poney station,, this service was used by the muslims since 7th century,, the umayed dynasty made stations in different cities throughout the islamic world, for passing the information from the caliphs/govers to the army or other parts of the empire they used this method,they would change the horses at the coming stations.. you can search/check it,,its in islamic history..
Both FDD and TDD require precise timing and it has nothing to do with upstream vs downstream. The LTE frame is very complex, with multiple time slots and all devices have to be synchronized. This is maintained with Precision Time Protocol (PTP) to maintain timing within 1.5 µS. Also, TDD isn't a simple up & down, with guard time as you show. A frame is very complex and often has the uplink and downlink slots right next to each other. It's the precision timing that allows this to happen and the transmitting device actually adjust when it sends a time slot
well i am now grade 9 students. this is my teacher showd us the video so i decide to relearn this topic. i wanted to finish my goal and make my parents proud
In large events like music festivals and sports events, people use more data in the uplink direction than downlink. Therefore it is necessary to use FDD or modified TDD with uplink ratio higher than downlink.
