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How UE will decide it that it has to send Short BSR or Long BSR ? On which parameters ?

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How UE will decide it that it has to send Short BSR or Long BSR ? On which parameters ?
posted May 16, 2014 by Puneet Batra

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in current subframe , if data is available for more than one logical channel then send Long Bsr else short bsr..!!!

1 Answer

+4 votes

Please refer Section "5.4.5 Buffer Status Reporting" of Seci 36.321.

it would not be easy to make very clear sense out of just reading the specification. However, just big picture is as follows : First criteria is to check whether it is Padding BSR or Regular/Periodic BSR and once it is determined, apply following rule.

For Regular and Periodic BSR,
if( the number of LCG with allocated data > 1) --> Long BSR
else --> Short BSR

For Padding BSR,
if( the number of padding bit >= the size of the Short BSR plus its sub-header
&& the number of padding bit <= the size of the Long BSR plus its sub-header)
{
if( the number of LCG with allocated data > 1) --> Truncated BSR
else --> Short BSR
} else {
--> Long BSR
}

Source: http://www.sharetechnote.com/

answer May 16, 2014 by Hiteshwar Thakur
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