D.2 An example of a coding for modem access with V22-bis, 2,4 kbit/s, 8 bit no parity
24.0083GPPCore network protocolsMobile radio interface Layer 3 specificationRelease 18Stage 3TS
D.2.1 Mobile station to network direction, data compression allowed
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8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
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0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
octet 1 |
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Bearer capability IEI |
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0 |
0 |
0 |
0 |
0 |
1 |
1 |
1 |
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Length of the bearer capability contents |
octet 2 |
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1 |
1 |
0 |
0 |
0 |
0 |
1 |
0 |
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not ext |
dual, half preferred |
GSM |
circ. mode |
3.1 kHz audio ex PLMN |
octet 3 |
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1 |
1 |
0 |
0 |
1 |
0 |
0 |
0 |
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not ext |
comp-ress. |
SDU integrity |
full dupl. |
pt to pt |
no NIRR |
de- mand |
octet 4 |
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1 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
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not ext |
access id. |
no rate adaption |
I.440/450 |
octet 5 |
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0 |
0 |
1 |
0 |
0 |
0 |
0 |
1 |
|
|
ext |
layer 1 |
default layer 1 |
async |
octet 6 |
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0 |
0 |
0 |
1 |
0 |
0 |
1 |
1 |
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|
ext |
1 bit |
no neg |
8 bits |
2.4 kbit/s |
octet 6a |
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0 |
1 |
1 |
0 |
0 |
0 |
1 |
1 |
|
|
ext |
16 kbit/s inter. rate |
no NICtx |
no NICrx |
(parity) none |
octet 6b |
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1 |
0 |
1 |
0 |
0 |
0 |
1 |
1 |
|
|
not ext |
non trans RLP) |
V.22 bis |
octet 6c |
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D.2.2 Network to mobile station direction, data compression possible
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8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
|
|
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
octet 1 |
|
Bearer capability IEI |
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|
0 |
0 |
0 |
0 |
0 |
1 |
1 |
1 |
|
|
Length of the bearer capability contents |
octet 2 |
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|
1 |
0 |
1 |
0 |
0 |
0 |
1 |
0 |
|
|
not ext |
spare |
spare |
GSM |
circ. mode |
3.1 kHz audio ex PLMN |
octet 3 |
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|
1 |
1 |
0 |
0 |
1 |
0 |
0 |
0 |
|
|
not ext |
comp-ress. |
SDU integrity |
full dupl. |
pt to pt |
no NIRR |
de-mand |
octet 4 |
|
|
1 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
|
|
not ext |
access id. |
no rate adaption |
I.440/450 |
octet 5 |
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|
0 |
0 |
1 |
0 |
0 |
0 |
0 |
1 |
|
|
ext |
layer 1 |
default layer 1 |
async |
octet 6 |
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0 |
0 |
0 |
1 |
0 |
0 |
1 |
1 |
|
|
ext |
1 bit |
no neg |
8 bits |
2.4 kbit/s |
octet 6a |
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|
0 |
1 |
1 |
0 |
0 |
0 |
1 |
1 |
|
|
ext |
16 kbit/s inter. rate |
no NICtx |
no NICrx |
(parity) none |
octet 6b |
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|
1 |
0 |
1 |
0 |
0 |
0 |
1 |
1 |
|
|
not ext |
non trans (RLP) |
V.22 bis |
octet 6c |
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