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LTE RACH: What the data preamble

+1 vote
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In spec 36.321 it is being told that while deciding upon which preamble group to choose for RAP delta preamble is used.

In spec it is being told that it a preamble format based offset but I am not getting what the data preamble actually is?

posted Aug 6, 2014 by anonymous

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During preamble transmission, how devices choose the frequency band in PRACH for preamble transmission?

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+3 votes

Actually i am trying to learn RACH procedures and getting lots of hurdles to understand. I am posting my queries whatever is coming to my mind so that i will get the descriptive answers. I hope someone will help me here to learn it. Thanks in advance.

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