A.3 Signalling Interworking

03.733GPPRelease 1999Stage 2Support of Localised Service Area (SoLSA)TS

Figure A2: Signalling interworking at Mobile Originating Call Establishment with applications on CAMEL Service Environment

SYSTEM_INFO: The network provides the cell identity and/or LSA ID(s) of the cell, LSA cell reselection parameters and the exclusive access indication.

Initial RACH CHAN_REQ: Standard message.

IMM_ASS: Standard message.

SABM (SERV_REQ): Standard message.

UA (SERV_REQ): Standard message.

COM_L3_INFO: The MSC is provided with initial information about the requested service together with the LSA ID(s) of current cell.

CM_SERV_ACC: Standard message. The service request is acknowledged. Acknowledgement of the service can also be performed by invocation of ciphering mode setting.

SETUP: Standard message.

INITIALDP: Modified CAP message indicating that the CAMEL TDP has been met. Additionally the LSA ID(s) of the current cell are sent to the gsmSCF.

CONTINUE: Modified CAP message indicating that the call continues without modifications.

CONNECT: Modified CAP message indicating that the gsmSCF has modified e.g. the destination number.

CALL_PROCEEDING: Standard message.

LSA INFO: New message including the LSA ID(s), priority of each LSA, the preferential access indicator of each LSA and an indication about the access rights outside these LSA(s) for the service subscriber. This message need to be sent before Assignment Request message. Additional messages may be sent at anytime during the lifetime of a call.

ASS_REQ: Standard message.

ASS_CMD: Standard message.

SABM: Standard message.

UA: Standard message.

Air_ASS_COM: Standard message.

A_ASS_COM: Modified assignment complete including the LSA ID of current cell.

Annex B (informative):
Change history

Change history

TSG SA#

Spec

Version

CR

<Phase>

New Version

Subject/Comment

Jun 1999

GSM 03.73

7.1.0

R99

Transferred to 3GPP CN

CN#04

23.073

R99

3.0.0

23.073

3.0.0

R99

3.0.1

References updated from 2G to 3G

SA#16

23.073 to 03.73

3.0.1

R99

8.0.0

Renumber 23.073 R99 (version 3.0.1) to 03.73 (version 8.0.0)