![]() Thus, the guard interval protects against data loss within the same timeslot, and protects the following user's timeslot from interference caused by propagation delay. In TDMA, each user's timeslot ends with a guard interval. As long as the echoes fall within this interval, they will not affect the receiver's ability to safely decode the actual data, as data is only interpreted outside the guard interval. In OFDM, the beginning of each symbol is preceded by a guard interval. 1 Use in digital communications systems.
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