13 State transition model

03.933GPPStage 2Technical realization of Completion of Calls to Busy Subscriber (CCBS)TS

13.1 State transition model for the CCBS service in the originating network

Figure 13.1.1 shows the successful cases of transition between the applicable logical states of the CCBS service in the originating network. The state changes may be caused by actions of the service provider or the network.

Figure 13.1.1: State Transition Model for CCBS Service in the originating network

13.2 State transition model for the CCBS service in the destination network

Figure 13.2.1 shows the successful cases of transition between the applicable logical states of the CCBS service in the destination network. The state changes may be caused by actions of the service provider or the network.

Figure 13.2.1: State Transition Model for CCBS Service in the destination network

13.3 State transition model for a CCBS Request

Figure 13.3.1 shows the successful cases of transition between the applicable logical states of a CCBS Request. The state changes may be caused by actions of the served subscriber or the network.

Each subscriber can be considered to have a set of n requests, where n is the maximum number of CCBS requests allowed for a subscriber as an originator.

Figure 13.3.1: State Transition Model for a CCBS Request in Originating Network

On provision of the CCBS service, all requests transit to the "Start" state

Figure 13.3.2: State Transition Model for a CCBS Request in Destination Network

13.4 Information stored in the VLRs

Originating Network Data

For the CCBS service in the originating network the VLR shall store the service state information received from HLR.

Destination Network Data

For the CCBS service in the destination network the VLR shall store the service state information received from HLR.

Annex A (Informative):
Message flow diagrams showing a successful CCBS request

The following message flow diagrams show a successful CCBS request. Destination B busy when request activated, subscriber A free when destination B becomes free (mobile-to-mobile).

Annex B (Informative):
Status of Technical Specification GSM 03.93

Status
of
Technical Specification GSM 03.93: stage 2 CCBS

Date

Version

Comments

no Phase 1 version

September 1997

version 1.0.0

to SMG3#23 for information

March 1998

version 2.0.0

to SMG#25 for approval

March 1998

version 6.0.0

TS approved by SMG#25 for Release 97

June 1998

version 6.1.0

CR 03.93-A001r1 (cat D)
CR 03.93-A002r2 (cat F)
CR 03.93-A003r1 (cat C)
CR 03.93-A004r1 (cat C); all approved by SMG#26

Specification published as TS 101 283

October 1998

Version 6.2.0

CR 03.93-A005r1 (cat D)
CR 03.93-A006r2 (cat F)
CR 03.93-A007r1 (cat F)
CR 03.93-A008r1 (cat F); all approved by SMG#27

August 1999

version 7.0.0

Specification version upgrade to Release 1998 version 7.0.0

Text and figures: WinWord 6.0
Stylesheet: etsiw_70.dot
Rapporteur: Pekka Hämäläinen