GCSE-HI3 {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) threeGPP(4) hi3gcse(14) r12(12) version-0(0)}
 
DEFINITIONS IMPLICIT TAGS ::=

BEGIN



IMPORTS

LawfulInterceptionIdentifier,
	
TimeStamp
	FROM HI2Operations 
	{itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) hi2(1)  version18(18)}-- from ETSI HI2Operations TS 101 671, version 3.12.1

GcseCorrelation,
GcsePartyInformation
	
	FROM CONFHI2Operations
	{itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulintercept(2)
    threeGPP(4) hi2gcse(13)  r12(12) version-1 (1)};
    -- Imported from Gcse HI2 Operations part of this standard

-- Object Identifier Definitions

-- Security DomainId
lawfulInterceptDomainId OBJECT IDENTIFIER ::= {itu-t(0) identified-organization(4) etsi(0)
securityDomain(2) lawfulIntercept(2)}

-- Security Subdomains
threeGPPSUBDomainId OBJECT IDENTIFIER ::= {lawfulInterceptDomainId threeGPP(4)}
hi3gcseDomainId OBJECT IDENTIFIER  ::= {threeGPPSUBDomainId hi3gcse(14) r12(12) version-0(0)}

Gcse-CC-PDU	::= SEQUENCE 
{
 	gcseLIC-header		[1] GcseLIC-header, 
	payload			[2] OCTET STRING
}

GcseLIC-header ::= SEQUENCE 
{
	hi3gcseDomainId					[1]	OBJECT IDENTIFIER,  -- 3GPP HI3 gcse Domain ID
	lIID							[2] LawfulInterceptionIdentifier OPTIONAL,
	correlation						[3]	GcseCorrelation,
	timeStamp						[4]	TimeStamp OPTIONAL,
	sequence-number					[5]	INTEGER (0..65535),
	t-PDU-direction					[6] TPDU-direction,
	national-HI3-ASN1parameters		[7] National-HI3-ASN1parameters OPTIONAL,
	--  encoded per national requirements
	mediaID							[8] MediaID  OPTIONAL,
		-- Identifies the media being exchanged by parties on the GCSE group communications.
...
	
}


MediaID ::= SEQUENCE 
{
		sourceUserID	[1] GcsePartyInformation	OPTIONAL,  -- include SDP information 
			-- describing GCSE Server Side characteristics.

		streamID		[2] OCTET STRING 	OPTIONAL,  -- include streamID from SDP information. 
			
	...
}


TPDU-direction ::= ENUMERATED
{
	from-target 	(1),
	to-target 		(2),
	unknown 		(3),
...
}

END