LTE MAC Buffer Status Report (36.321)

The Buffer Size field identifies the total amount of data available ready to transmit (number of bytes)

Buffer size levels graphical view

0 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60

Buffer size levels for BSR

Index Buffer Size (BS) value [bytes]    Index Buffer Size (BS) value [bytes]
0 BS = 0 32 1132 < BS ≤ 1326
1 0 < BS ≤ 10 33 1326 < BS ≤ 1552
2 10 < BS ≤ 12 34 1552 < BS ≤ 1817
3 12 < BS ≤ 14 35 1817 < BS ≤ 2127
4 14 < BS ≤ 17 36 2127 < BS ≤ 2490
5 17 < BS ≤ 19 37 2490 < BS ≤ 2915
6 19 < BS ≤ 22 38 2915 < BS ≤ 3413
7 22 < BS ≤ 26 39 3413 < BS ≤ 3995
8 26 < BS ≤ 31 40 3995 < BS ≤ 4677
9 31 < BS ≤ 36 41 4677 < BS ≤ 5476
10 36 < BS ≤ 42 42 5476 < BS ≤ 6411
11 42 < BS ≤ 49 43 6411 < BS ≤ 7505
12 49 < BS ≤ 57 44 7505 < BS ≤ 8787
13 57 < BS ≤ 67 45 8787 < BS ≤ 10287
14 67 < BS ≤ 78 46 10287 < BS ≤ 12043
15 78 < BS ≤ 91 47 12043 < BS ≤ 14099
16 91 < BS ≤ 107 48 14099 < BS ≤ 16507
17 107 < BS ≤ 125 49 16507 < BS ≤ 19325
18 125 < BS ≤ 146 50 19325 < BS ≤ 22624
19 146 < BS ≤ 171 51 22624 < BS ≤ 26487
20 171 < BS ≤ 200 52 26487 < BS ≤ 31009
21 200 < BS ≤ 234 53 31009 < BS ≤ 36304
22 234 < BS ≤ 274 54 36304 < BS ≤ 42502
23 274 < BS ≤ 321 55 42502 < BS ≤ 49759
24 321 < BS ≤ 376 56 49759 < BS ≤ 58255
25 376 < BS ≤ 440 57 58255 < BS ≤ 68201
26 440 < BS ≤ 515 58 68201 < BS ≤ 79846
27 515 < BS ≤ 603 59 79846 < BS ≤ 93479
28 603 < BS ≤ 706 60 93479 < BS ≤ 109439
29 706 < BS ≤ 826 61 109439 < BS ≤ 128125
30 826 < BS ≤ 967 62 128125 < BS ≤ 150000
31 967 < BS ≤ 1132 63 BS > 150000

Extended Buffer size levels for BSR

Index Buffer Size (BS) value [bytes]    Index Buffer Size (BS) value [bytes]
0 BS = 0 32 4940 < BS ≤ 6074
1 0 < BS ≤ 10 33 6074 < BS ≤ 7469
2 10 < BS ≤ 13 34 7469 < BS ≤ 9185
3 13 < BS ≤ 16 35 9185 < BS ≤ 11294
4 16 < BS ≤ 19 36 11294 < BS ≤ 13888
5 19 < BS ≤ 23 37 13888 < BS ≤ 17077
6 23 < BS ≤ 29 38 17077 < BS ≤ 20999
7 29 < BS ≤ 35 39 20999 < BS ≤ 25822
8 35 < BS ≤ 43 40 25822 < BS ≤ 31752
9 43 < BS ≤ 53 41 31752 < BS ≤ 39045
10 53 < BS ≤ 65 42 39045 < BS ≤ 48012
11 65 < BS ≤ 80 43 48012 < BS ≤ 59039
12 80 < BS ≤ 98 44 59039 < BS ≤ 72598
13 98 < BS ≤ 120 45 72598 < BS ≤ 89272
14 120 < BS ≤ 147 46 89272 < BS ≤ 109774
15 147 < BS ≤ 181 47 109774 < BS ≤ 134986
16 181 < BS ≤ 223 48 134986 < BS ≤ 165989
17 223 < BS ≤ 274 49 165989 < BS ≤ 204111
18 274 < BS ≤ 337 50 204111 < BS ≤ 250990
19 337 < BS ≤ 414 51 250990 < BS ≤ 308634
20 414 < BS ≤ 509 52 308634 < BS ≤ 379519
21 509 < BS ≤ 625 53 379519 < BS ≤ 466683
22 625 < BS ≤ 769 54 466683 < BS ≤ 573866
23 769 < BS ≤ 945 55 573866 < BS ≤ 705666
24 945 < BS ≤ 1162 56 705666 < BS ≤ 867737
25 1162 < BS ≤ 1429 57 867737 < BS ≤ 1067031
26 1429 < BS ≤ 1757 58 1067031 < BS ≤ 1312097
27 1757 < BS ≤ 2161 59 1312097 < BS ≤ 1613447
28 2161 < BS ≤ 2657 60 1613447 < BS ≤ 1984009
29 2657 < BS ≤ 3267 61 1984009 < BS ≤ 2439678
30 3267 < BS ≤ 4017 62 2439678 < BS ≤ 3000000
31 4017 < BS ≤ 4940 63 BS > 3000000