Title: FIS - Stop the t-LI timer 

PDR Reference:				98110003
Originator Reference:
SARPs Document Reference:          	FIS SARPs, Sections 2.4.5.3.12.12.1, 
						2.4.5.3.12.13.1, 2.4.5.3.12.14,
						2.4.5.3.12.15 and Table 2.4.5-10/b 
Status:					RESOLVED
Impact:					D (Minor)
PDR Revision Date:			18/01/99 (PROPOSED -> RESOLVED)
						15/12/98 (ACCEPTED -> PROPOSED)
						30/11/98 (SUBMITTED -> ACCEPTED)
PDR Submission Date:			19/11/98
Submitting State/Organization:	SME2 Team (on behalf of ACI)
Submitting Author Name:         	Picard, F.
Submitting Author E-mail Address:  	
Submitting Author Supplemental
Contact Information: 
SARPs Date:                        	ICAO ATNP Version 2.3 - Doc 9705 Ed 1
Language:                    		English

Summary of Defect:

The t-LI-1 timer is never stopped.

Proposed modification:

1/ 2.4.5.3.12.12.1 replace:
shall enter the LI-IDLE state.

by:
shall:
a) stop the t-LI-1 timer, and
b) enter the LI-IDLE state.

2/ 2.4.5.3.12.13.1 replace:
shall request the AB module

by:
shall:
a) stop the t-LI-1 timer, 
b) request the AB module 

3/ 2.4.5.3.12.14 add
a) stop the t-LI-1 timer, if set,

4/ 2.4.5.3.12.15 add
a) stop the t-LI-1 timer, if set,

5/ in Table 2.4.5-10/b, in cell (D-END cnf positive, LI-END-I) add
stop t-LI-1

6/ in Table 2.4.5-10/b, in cell (D-END cnf negative, LI-END-I) add
stop t-LI-1

7/ in Table 2.4.5-10/b, in cell (D-ABORT ind, LI-END-I) add
stop t-LI-1

8/ in Table 2.4.5-10/b, in cell (D-P-ABORT ind, LI-END-I) add
stop t-LI-1


Impact on interoperability:

None. Not stopping the timer on receipt of a D-END cnf positive or an abort indication doesn't matter since the ASE invocation is killed anyway. In case of the D-END cnf negative, the timer will elapse and cause a false abort situation. The behaviour of the ASE is improved but this does not impact the interoperability.

SME recommendation to CCB:			

CCB Decision:					atnp_ccb_chair (19/11/98): SUBMITTED
							atnp_ccb_chair (30/11/98): ACCEPTED
							atnp_ccb_chair (15/12/98): PROPOSED
							CCB-8 (Honolulu): RESOLVED (18/01/99)