7.7.73 Cell Identification
29.0603GPPGeneral Packet Radio Service (GPRS)GPRS Tunnelling Protocol (GTP) across the Gn and Gp interfaceRelease 17TS
The Cell Identification information element contains
– for PS handover from A/Gb mode, the identification of a target cell (Target Cell ID) and the identification of the source cell (Source Cell ID) as defined in 3GPP TS 48.018 [20].
– for PS handover from Iu mode, the identification of a target cell (Target Cell ID) and the identification of the source RNC (Source RNC-ID) as defined in 3GPP TS 48.018 [20].
– for PS handover from S1 mode, the identification of a target cell (Target Cell ID) as defined in 3GPP TS 48.018 [20]. Octet 12 shall be set to "Source Cell ID" and octets 13-20 shall be encoded as all zero.
|
Bits |
||||||||
|
Octets |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
|
1 |
Type = 174 (Decimal) |
|||||||
|
2-3 |
Length = 17 (Decimal) |
|||||||
|
4-11 |
Target Cell ID |
|||||||
|
12 |
Source Type |
|||||||
|
13-20 |
Source Cell ID / Source RNC-ID |
|||||||
Figure 7.7.73.1: Cell Identification Information Element
Source Type indicates whether the source is identified by a Cell ID (A/Gb) or by a RNC-ID (Iu).
Table 7.7.73.1: Source Type Values
|
Source Type |
Value |
|
Source Cell ID |
0 |
|
Source RNC-ID |
1 |
|
<spare> |
2-255 |