O.3 Information element identifier
24.0083GPPCore network protocolsMobile radio interface Layer 3 specificationRelease 18Stage 3TS
The information element identifier and its use are defined in 3GPP TS 24.007 [20].
For the information elements defined in subclause O.4, the coding of the information element identifier bits is defined in table O.2/3GPP TS 24.008.
For a method to determine from the information element identifier whether an unknown information element is of type 1 or 2 (i.e. it is an information element of one octet length) or type 4 (i.e. the next octet is the length indicator indicating the length of the remaining of the information element) see 3GPP TS 24.007 [20], subclause 11.2.4.
Table O.1/3GPP TS 24.008: Information element identifier coding for user-user protocol information elements
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Reference clause |
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8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
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|
Type 1 information elements: |
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|
1 |
0 |
0 |
0 |
– |
– |
– |
– |
Radio environment capability |
O.4.2 |
|
|
1 |
1 |
0 |
0 |
– |
– |
– |
– |
IM Status |
O.4.4 |
|
|
Type 2 information elements: |
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|
1 |
0 |
1 |
0 |
– |
– |
– |
– |
Unused |
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|
Type 3 and 4 information elements: |
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|
0 |
0 |
0 |
1 |
0 |
0 |
0 |
1 |
Personal ME identifier |
O.4.1 |
|
|
0 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
UE capability version |
O.4.3 |
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|
All other values are unused |
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