Title: FIS - ASN.1 syntax error 

PDR Reference:				98090008
Originator Reference:
SARPs Document Reference:          	FIS SARPs, Section 2.4.4.2.1
Status:					RESOLVED
Impact :					B (Bug)
PDR Revision Date:			28/09/98 (SUBMITTED -> RESOLVED)
PDR Submission Date:			24/09/98
Submitting State/Organization:
Submitting Author Name:         	Moncreaff, G.
						Riopel, M.
Submitting Author E-mail Address:  	moncreg@res.raytheon.com,
						riopelm@res.raytheon.com
Submitting Author Supplemental
Contact Information:               +1.508.490.2048 (Moncreaff),
						+1.508.490.2595 (Riopel)
SARPs Date:                        ICAO ATNP Version 2.3 - Doc 9705 SARPs Language:                    		English

Summary of Defect:

"(", ")" are missing when specifying the size constraint of a named BIT STRING.

According to ISO/IEC 8824-1 : 1995(E):
Type 			::= BuiltinType | ReferencedType | ConstrainedType
ConstrainedType 	::= Type Constraint | TypeWithConstraint
BuiltinType		::= BitStringType | ...
Constraint 		::= "(" ConstrainSpec ExeceptionSpec ")"
ConstraintSpec 	::= SubTypeConstraint | GeneralConstraint
SubTypeConstraint ::= ElementSpec 	-> Unions 
				-> Intersections -> IntersectionElements -> Element
				-> SubtypeElements -> SizeConstaint
SizeConstraint ::= SIZE Constraint

hence
BitStringType {...} (SIZE (1,...))

Assigned SME:				Sub-Volume II SME

Proposed SARPs amendment:

In 2.4.4.2.1, change from:
FISServiceType ::= BIT STRING
{
-- Automatic Terminal Information Service (ATIS) 
atis    (0)
}
SIZE(1,...)

To:
FISServiceType ::= BIT STRING
{
-- Automatic Terminal Information Service (ATIS) 
atis    (0)
}
(SIZE(1,...) )

SME recommendation to CCB:				-

CCB Decision:						atnp_ccb_chair (24/09/98)
								CCB-7: RESOLVED (28/09/98)