GSM 09.02 - Version 5.3.0 - Digital cellular telecommunications - ETSI

Page 102
GSM 09.02 version 5.3.0: August 1996
User error
Only one of the following values is applicable:
- Unidentified subscriber;
- Data missing;
- Unexpected data value.
6.9 Identity management services
6.9.1 MAP-PROVIDE-IMSI service
6.9.1.1 Definition
This service is used by a VLR in order to get, via the MSC, the IMSI of a subscriber (e.g. when a
subscriber has identified itself with a TMSI not allocated to any subscriber in the VLR).
It is a confirmed service and consists of the primitives shown in table 6.9/1.
6.9.1.2 Service primitives
6.9.1.3 Parameter use
Parameter name Request Indication Response Confirm
Invoke Id M M(=) M(=) M(=)
IMSI C C(=)
User error C C(=)
Provider error O
Table 6.9/1: MAP-PROVIDE-IMSI
All parameters are described in subclause 5.6. The following clarifications are applicable:
IMSI
This parameter is received when the request is successfully carried out. It contains the requested IMSI.
User error
Only one of the following values is applicable:
- Absent subscriber.
6.9.2 MAP-FORWARD-NEW-TMSI service
6.9.2.1 Definition
This service is used by a VLR to allocate, via MSC, a new TMSI to a subscriber during an ongoing
transaction (e.g. call set-up, location updating or supplementary services operation).
It is a confirmed service and consists of the primitives shown in table 6.9/2.