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# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

TB Transport Block

In UMTS a TB (Transport Block) is defined as the data accepted by the physical layer to be jointly encoded. The transmission block timing is then tied exactly to this Layer 1 frame timing, e.g. every transmission block is generated precisely every 10ms, or a multiple of 10ms.
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