path: root/asn1/rrlp/RRLP-Components.asn

-- RRLP-Components.asn
-- $Id$
-- Taken from 3GPP TS 44.031  V9.2.0 (2010-03)
-- http://www.3gpp.org/ftp/Specs/archive/44_series/44.031/44031-920.zip/44031-920.doc
--
-- 4 Components
-- 5 Elements of Components
--

RRLP-Components
-- { RRLP-Components }

DEFINITIONS AUTOMATIC TAGS ::=

BEGIN

IMPORTS
	Ext-GeographicalInformation, VelocityEstimate
FROM
	MAP-LCS-DataTypes {
	ccitt identified-organization (4) etsi (0) mobileDomain (0)
	gsm-Network (1) modules (3) map-LCS-DataTypes (25) version5 (5)}

	ExtensionContainer
FROM MAP-ExtensionDataTypes {
	ccitt identified-organization (4) etsi (0) mobileDomain (0)
	gsm-Network (1) modules (3) map-ExtensionDataTypes (21) version4 (4)}
;

-- Add here other ASN.1 definitions presented below
-- in chapters 4 and 5.

-- Measurement Position request component
MsrPosition-Req ::= SEQUENCE {
	positionInstruct		PositionInstruct,
	referenceAssistData		ReferenceAssistData		OPTIONAL,
	msrAssistData			MsrAssistData			OPTIONAL,
	systemInfoAssistData	SystemInfoAssistData	OPTIONAL,
	gps-AssistData			GPS-AssistData			OPTIONAL,
	extensionContainer		ExtensionContainer		OPTIONAL,
	...,
	-- Release 98 extension element
rel98-MsrPosition-Req-extension			Rel98-MsrPosition-Req-Extension			OPTIONAL,	
	-- Release 5 extension element
rel5-MsrPosition-Req-extension			Rel5-MsrPosition-Req-Extension			OPTIONAL,
	-- Release 7 extension element
rel7-MsrPosition-Req-extension			Rel7-MsrPosition-Req-Extension			OPTIONAL
}



-- Measurement Position response component
MsrPosition-Rsp ::= SEQUENCE {
	multipleSets			MultipleSets			OPTIONAL,
	referenceIdentity		ReferenceIdentity		OPTIONAL,
	otd-MeasureInfo			OTD-MeasureInfo			OPTIONAL,
	locationInfo			LocationInfo			OPTIONAL,
	gps-MeasureInfo			GPS-MeasureInfo			OPTIONAL,
	locationError			LocationError			OPTIONAL,
	extensionContainer		ExtensionContainer		OPTIONAL,
	...,	
	-- Release extension here
	rel-98-MsrPosition-Rsp-Extension		
							Rel-98-MsrPosition-Rsp-Extension		OPTIONAL,
	rel-5-MsrPosition-Rsp-Extension
							Rel-5-MsrPosition-Rsp-Extension		OPTIONAL,
	-- When RRLP pseudo-segmentation is used, rel-5-MsrPosition-Rsp-Extension 
	-- and other possible future extensions should be the ones included in 
	-- the 2nd MsrPosition-Rsp component.
	rel-7-MsrPosition-Rsp-Extension
							Rel-7-MsrPosition-Rsp-Extension		OPTIONAL
}


-- Assistance Data component
AssistanceData ::= SEQUENCE {
	referenceAssistData	ReferenceAssistData			OPTIONAL,
	msrAssistData			MsrAssistData			OPTIONAL,
	systemInfoAssistData	SystemInfoAssistData	OPTIONAL,
	gps-AssistData			GPS-AssistData			OPTIONAL,	
	moreAssDataToBeSent		MoreAssDataToBeSent		OPTIONAL,	-- If not present, interpret as only
																-- Assistance Data component used to
																-- deliver entire set of assistance
																-- data.
	extensionContainer		ExtensionContainer		OPTIONAL,
	...,
	-- Release extension here
	rel98-AssistanceData-Extension	Rel98-AssistanceData-Extension	OPTIONAL,
	rel5-AssistanceData-Extension	Rel5-AssistanceData-Extension	OPTIONAL,
 rel7-AssistanceData-Extension Rel7-AssistanceData-Extension OPTIONAL	
}


-- Protocol Error component
ProtocolError ::= SEQUENCE {
	errorCause				ErrorCodes,	
	extensionContainer		ExtensionContainer		OPTIONAL,
	...,
	-- Release extensions here
	rel-5-ProtocolError-Extension Rel-5-ProtocolError-Extension		OPTIONAL
}


-- Positioning Capability request component
PosCapability-Req ::= SEQUENCE {
	extended-reference			Extended-reference,
	gANSSPositionMethods		GANSSPositionMethods	OPTIONAL,
	extensionContainer			ExtensionContainer		OPTIONAL,
	...
}


-- Positioning Capability response component
PosCapability-Rsp ::= SEQUENCE {
	extended-reference		Extended-reference,
	posCapabilities			PosCapabilities,

-- assistanceSupported shall be included if and only if any of the assistance data is supported
	assistanceSupported		AssistanceSupported		OPTIONAL,
	assistanceNeeded		AssistanceNeeded		OPTIONAL,
	extensionContainer		ExtensionContainer		OPTIONAL,
	...
}


-- add these defintions to RRLP-Components module
-- Position instructions
PositionInstruct ::= SEQUENCE {
	-- Method type
	methodType				MethodType,	
	positionMethod			PositionMethod,
	measureResponseTime		MeasureResponseTime,		
	useMultipleSets			UseMultipleSets,		
	environmentCharacter	EnvironmentCharacter	OPTIONAL	
}

--
MethodType ::= CHOICE {
	msAssisted		AccuracyOpt,	-- accuracy is optional
	msBased			Accuracy,		-- accuracy is mandatory
	msBasedPref		Accuracy,		-- accuracy is mandatory
	msAssistedPref	Accuracy 		-- accuracy is mandatory
}

-- Accuracy of the location estimation
AccuracyOpt ::= SEQUENCE {
	accuracy		Accuracy	OPTIONAL
}


-- The values of this field are defined in 3GPP TS 23.032 (Uncertainty code)
Accuracy ::= INTEGER (0..127)

-- Position Method
PositionMethod ::= ENUMERATED {
	eotd (0),
	gps (1),
	gpsOrEOTD (2)
}

-- Measurement request response time
MeasureResponseTime ::= INTEGER (0..7)

-- useMultiple Sets, FFS!
UseMultipleSets ::= ENUMERATED {
	multipleSets (0),		-- multiple sets are allowed
	oneSet (1)				-- sending of multiple is not allowed
}

-- Environment characterization
EnvironmentCharacter ::= ENUMERATED {
	badArea (0),		-- bad urban or suburban, heavy multipath and NLOS
	notBadArea (1),		-- light multipath and NLOS
	mixedArea (2),		-- not defined or mixed environment
	...
}

-- E-OTD reference BTS for Assitance data IE
ReferenceAssistData ::= SEQUENCE {
	bcchCarrier		BCCHCarrier,						-- BCCH carrier
	bsic			BSIC,								-- BSIC
	timeSlotScheme	TimeSlotScheme, 					-- Timeslot scheme
	btsPosition		BTSPosition			OPTIONAL
}

-- ellipsoid point and
-- ellipsoid point with altitude and uncertainty ellipsoid shapes are supported
BTSPosition ::= Ext-GeographicalInformation

-- RF channel number of BCCH
BCCHCarrier ::= INTEGER (0..1023)

-- Base station Identity Code
BSIC ::= INTEGER (0..63)

-- Timeslot scheme
TimeSlotScheme ::= ENUMERATED {
	equalLength (0),
	variousLength (1)
}

-- Time slot (modulo)
ModuloTimeSlot ::= INTEGER (0..3)

-- E-OTD measurement assistance data IE
-- The total number of neighbors in this element (MsrAssistData)
-- and in SystemInfoAssistData element (presented neighbors
-- can be at a maximum 15!)
MsrAssistData ::= SEQUENCE {
	 msrAssistList SeqOfMsrAssistBTS
}
SeqOfMsrAssistBTS ::= SEQUENCE (SIZE(1..15)) OF MsrAssistBTS

MsrAssistBTS ::= SEQUENCE {
	bcchCarrier			BCCHCarrier,		-- BCCH carrier
	bsic				BSIC,				-- BSIC
	multiFrameOffset	MultiFrameOffset, 	-- multiframe offset
	timeSlotScheme		TimeSlotScheme,		-- Timeslot scheme
	roughRTD			RoughRTD,			-- rough RTD value

	-- Location Calculation Assistance data is moved here
	calcAssistanceBTS	CalcAssistanceBTS	OPTIONAL
}

-- Multiframe offset
MultiFrameOffset ::= INTEGER (0..51)
-- The Multiframe Offset value 51 shall not be encoded by the transmitting entity and
-- shall be treated by the receiving entity as 0.

-- Rough RTD value between one base station and reference BTS
RoughRTD ::= INTEGER (0..1250)
-- The RoughRTD value 1250 shall not be encoded by the transmitting entity and shall
-- be treated by the receiving entity as 0.

-- E-OTD Measurement assistance data for system information List IE
-- The total number of base stations in this element (SystemInfoAssistData
-- presented neighbors) and in MsrAssistData element can be at a maximum 15.
SystemInfoAssistData ::= SEQUENCE {
	systemInfoAssistList 	SeqOfSystemInfoAssistBTS
}
SeqOfSystemInfoAssistBTS::= SEQUENCE (SIZE(1..32)) OF SystemInfoAssistBTS

-- whether n.th is present or not ?
SystemInfoAssistBTS ::= CHOICE {
	notPresent		NULL,
	present			AssistBTSData
}

-- Actual assistance data for system information base station
AssistBTSData ::= SEQUENCE {
	bsic				BSIC,				-- BSIC
	multiFrameOffset	MultiFrameOffset,	-- multiframe offset
	timeSlotScheme		TimeSlotScheme,		-- Timeslot scheme
	roughRTD			RoughRTD,			-- rough RTD value

	-- Location Calculation Assistance data
	calcAssistanceBTS	CalcAssistanceBTS	OPTIONAL
}

-- E-OTD Location calculation assistance data,
-- CalcAssistanceBTS element is optional not subfields
CalcAssistanceBTS ::= SEQUENCE {
	fineRTD				FineRTD,		-- fine RTD value between base stations
	referenceWGS84		ReferenceWGS84	-- reference coordinates
}

-- Coordinates of neighbour BTS, WGS-84 ellipsoid
ReferenceWGS84 ::= SEQUENCE {
	relativeNorth	RelDistance,				-- relative distance (south negative)
	relativeEast	RelDistance,				-- relative distance (west negative)
	-- Relative Altitude is not always known
	relativeAlt		RelativeAlt		OPTIONAL	-- relative altitude
}

-- Fine RTD value between this BTS and the reference BTS	
FineRTD ::= INTEGER (0..255)

-- Relative north/east distance
RelDistance ::= INTEGER (-200000..200000)

-- Relative altitude
RelativeAlt ::= INTEGER (-4000..4000)

-- Measure position response IEs
-- Reference Identity
-- Multiple sets
MultipleSets ::= SEQUENCE {
	-- number of reference sets
	nbrOfSets			INTEGER (2..3),		

	-- This field actually tells the number of reference BTSs
	nbrOfReferenceBTSs	INTEGER (1..3),

	-- This field is conditional and included optionally only if
	-- nbrOfSets is 3 and number of reference BTSs is 2.
	referenceRelation		ReferenceRelation		OPTIONAL
}

-- Relation between refence BTSs and sets
ReferenceRelation ::= ENUMERATED {
	secondBTSThirdSet (0),	-- 1st BTS related to 1st and 2nd sets
	secondBTSSecondSet (1),	-- 1st BTS related to 1st and 3rd sets
	firstBTSFirstSet (2)	-- 1st BTS related to 1st set
}

-- Reference BTS Identity, this element contains number of
-- BTSs told nbrOfReferenceBTSs field in Multiple sets element)
ReferenceIdentity ::= SEQUENCE {
	-- Reference BTS list
	refBTSList		SeqOfReferenceIdentityType
}
SeqOfReferenceIdentityType ::= SEQUENCE (SIZE(1..3)) OF ReferenceIdentityType

-- Cell identity
ReferenceIdentityType ::= CHOICE {
	bsicAndCarrier	BSICAndCarrier,		-- BSIC and Carrier
	ci				CellID,				-- Cell ID, LAC not needed
	requestIndex	RequestIndex,		-- Index to Requested Neighbor List
	systemInfoIndex	SystemInfoIndex,	-- Index to System info list, this type of ref. identity
										-- shall not be used by the MS unless it has received
										-- the SystemInfoAssistData from the SMLC for this cell.
	ciAndLAC		CellIDAndLAC		-- CI and LAC
}

BSICAndCarrier ::= SEQUENCE {
	carrier	BCCHCarrier,
	bsic		BSIC
}

RequestIndex ::= INTEGER (1..16)

SystemInfoIndex ::= INTEGER (1..32)

CellIDAndLAC ::= SEQUENCE {
	referenceLAC	LAC,				-- Location area code
	referenceCI		CellID				-- Cell identity
}
CellID ::= INTEGER (0..65535)
LAC ::= INTEGER (0..65535)

-- OTD-MeasureInfo
OTD-MeasureInfo ::= SEQUENCE {
	-- Measurement info elements, OTD-MsrElement is repeated number of times
	-- told in nbrOfReferenceBTSs in MultipleSets, default value is 1
	otdMsrFirstSets		OTD-MsrElementFirst,

	-- if more than one sets are present this element is repeated
	-- NumberOfSets - 1 (-1 = first set)
	otdMsrRestSets		SeqOfOTD-MsrElementRest		OPTIONAL
}

SeqOfOTD-MsrElementRest ::= SEQUENCE (SIZE(1..2)) OF OTD-MsrElementRest

-- OTD measurent information for 1 set
OTD-MsrElementFirst ::= SEQUENCE {
	refFrameNumber			INTEGER (0..42431), 				-- Frame number modulo 42432
	referenceTimeSlot		ModuloTimeSlot,
	toaMeasurementsOfRef	TOA-MeasurementsOfRef	OPTIONAL,
	stdResolution			StdResolution,
	taCorrection			INTEGER (0..960)		OPTIONAL,	-- TA correction

	-- measured neighbors in OTD measurements
	otd-FirstSetMsrs 		SeqOfOTD-FirstSetMsrs 	OPTIONAL
}
SeqOfOTD-FirstSetMsrs ::= SEQUENCE (SIZE(1..10)) OF OTD-FirstSetMsrs

-- OTD measurent information 2 and 3 sets if exist
OTD-MsrElementRest ::= SEQUENCE {
	refFrameNumber			INTEGER (0..42431), 					-- Frame number modulo 42432
	referenceTimeSlot		ModuloTimeSlot,
	toaMeasurementsOfRef	TOA-MeasurementsOfRef		OPTIONAL,
	stdResolution			StdResolution,
	taCorrection			INTEGER (0..960)			OPTIONAL,	-- TA correction

	-- measured neighbors in OTD measurements
	otd-MsrsOfOtherSets 	SeqOfOTD-MsrsOfOtherSets	OPTIONAL
}
SeqOfOTD-MsrsOfOtherSets ::= SEQUENCE (SIZE(1..10)) OF OTD-MsrsOfOtherSets

-- Standard deviation of the TOA measurements from the reference BTS
TOA-MeasurementsOfRef ::= SEQUENCE {
	refQuality			RefQuality,
	numOfMeasurements	NumOfMeasurements
}

RefQuality ::= INTEGER (0..31)			-- St Dev of TOA of reference as defined in annex
NumOfMeasurements ::= INTEGER (0..7)	-- No. of measurements for RefQuality as defined in annex
StdResolution ::= INTEGER (0..3)		-- Values of resolution are defined in annex

OTD-FirstSetMsrs ::= OTD-MeasurementWithID

-- Neighbour info in OTD measurements 0-10 times in TD measurement info
OTD-MsrsOfOtherSets ::= CHOICE {
	identityNotPresent	OTD-Measurement,	
	identityPresent		OTD-MeasurementWithID
}

-- For this OTD measurement identity is same as the identity of BTS
-- in the first set with same sequence number
OTD-Measurement ::= SEQUENCE {
	nborTimeSlot	ModuloTimeSlot,
	eotdQuality		EOTDQuality,
	otdValue		OTDValue
}

-- This measurement contains the BTS identity and measurement
OTD-MeasurementWithID ::=SEQUENCE {
	neighborIdentity	NeighborIdentity,
	nborTimeSlot		ModuloTimeSlot,
	eotdQuality			EOTDQuality,
	otdValue			OTDValue
}

EOTDQuality ::= SEQUENCE {
	nbrOfMeasurements	INTEGER	(0..7),
	stdOfEOTD			INTEGER (0..31)
}

NeighborIdentity ::= CHOICE {
	bsicAndCarrier		BSICAndCarrier,		-- BSIC and Carrier
	ci					CellID,				-- Cell ID, LAC not needed
	multiFrameCarrier	MultiFrameCarrier, 	-- MultiFrameOffest and BSIC
	requestIndex		RequestIndex,		-- Index to Requested Neighbor List
	systemInfoIndex		SystemInfoIndex,	-- Index to System info list, this type of neighbour
											-- identity shall not be used by the MS unless it has
											-- received the SystemInfoAssistData from the SMLC for
											-- this cell.
	ciAndLAC			CellIDAndLAC		-- CI and LAC
}

-- Multiframe and carrier
MultiFrameCarrier ::= SEQUENCE {
	bcchCarrier			BCCHCarrier,
	multiFrameOffset	MultiFrameOffset
}

-- OTD measurement value for neighbour
OTDValue ::= INTEGER (0..39999)

-- Location information IE
LocationInfo ::= SEQUENCE {
	refFrame		INTEGER (0..65535),			-- Reference Frame number
	-- If refFrame is within (42432..65535), it shall be ignored by the receiver
	-- in that case the MS should provide GPS TOW if available
	gpsTOW			INTEGER (0..14399999)	OPTIONAL,	-- GPS TOW
	fixType			FixType,
	-- Note that applicable range for refFrame is 0 - 42431
	-- Possible shapes carried in posEstimate are
	-- ellipsoid point,
	-- ellipsoid point with uncertainty circle
	-- ellipsoid point with uncertainty ellipse
	-- ellipsoid point with altitude and uncertainty ellipsoid
	posEstimate		Ext-GeographicalInformation
}

FixType ::= INTEGER {
	twoDFix (0),
	threeDFix (1)
} (0..1)

-- GPS-Measurement information
GPS-MeasureInfo ::= SEQUENCE {
	-- Measurement info elements
	-- user has to make sure that in this element is number of elements
	-- defined in reference BTS identity
	gpsMsrSetList	SeqOfGPS-MsrSetElement	
}
SeqOfGPS-MsrSetElement ::= SEQUENCE (SIZE(1..3)) OF GPS-MsrSetElement

-- OTD measurent information 1-3 times in message
GPS-MsrSetElement ::= SEQUENCE {
	refFrame		INTEGER (0..65535)	OPTIONAL, 	-- Reference Frame number
	gpsTOW			GPSTOW24b,						-- GPS TOW
	-- Note that applicable range for refFrame is 0 - 42431

--N_SAT can be read from number of elements of gps-msrList

	gps-msrList		SeqOfGPS-MsrElement
}

-- 24 bit presentation for GPSTOW
GPSTOW24b ::= INTEGER (0..14399999)

-- measured elements in measurement parameters field
SeqOfGPS-MsrElement ::= SEQUENCE (SIZE(1..16)) OF GPS-MsrElement

GPS-MsrElement ::= SEQUENCE {
	satelliteID		SatelliteID,				-- Satellite identifier
	cNo				INTEGER (0..63),			-- carrier noise ratio
	doppler			INTEGER (-32768..32767), 	-- doppler, mulltiply by 0.2
	wholeChips		INTEGER (0..1022),			-- whole value of the code phase measurement
	fracChips		INTEGER (0..1024),			-- fractional value of the code phase measurement
											-- a value of 1024 shall not be encoded by the sender
											-- the receiver shall consider a value of 1024 to be
											-- invalid data
	mpathIndic		MpathIndic,					-- multipath indicator
	pseuRangeRMSErr	INTEGER (0..63)				-- index		
}

-- Multipath indicator
MpathIndic ::= ENUMERATED {
	notMeasured (0),
	low (1),
	medium (2),
	high (3)
}

-- Location error IE
LocationError ::= SEQUENCE {
	locErrorReason				LocErrorReason,
	additionalAssistanceData	AdditionalAssistanceData	OPTIONAL,
	...
}

LocErrorReason ::= ENUMERATED {
	unDefined (0),	
	notEnoughBTSs (1),
	notEnoughSats (2),
	eotdLocCalAssDataMissing (3),
	eotdAssDataMissing (4),
	gpsLocCalAssDataMissing (5),
	gpsAssDataMissing (6),
	methodNotSupported (7),
	notProcessed (8),
	refBTSForGPSNotServingBTS (9),
	refBTSForEOTDNotServingBTS (10),
	...,
	notEnoughGANSSSats (11),	
 ganssAssDataMissing (12),
	refBTSForGANSSNotServingBTS (13)
}

-- exception handling:
-- an unrecognized value shall be treated the same as value 0


-- defines additional assistance data needed for any new location attempt
-- MS shall retain any assistance data already received
AdditionalAssistanceData ::= SEQUENCE {
	gpsAssistanceData		GPSAssistanceData		OPTIONAL,
	extensionContainer		ExtensionContainer		OPTIONAL,
	...,
	ganssAssistanceData GANSSAssistanceData OPTIONAL
}


GPSAssistanceData ::= OCTET STRING (SIZE (1..maxGPSAssistanceData))
-- GPSAssistanceData has identical structure and encoding to octets 3 to n of the
-- GPS Assistance Data IE in 3GPP TS 49.031

maxGPSAssistanceData	INTEGER ::= 40

GANSSAssistanceData ::= OCTET STRING (SIZE (1..maxGANSSAssistanceData))
-- GANSSAssistanceData has identical structure and encoding to octets 3 to n of the
-- GANSS Assistance Data IE in 3GPP TS 49.031

maxGANSSAssistanceData	INTEGER ::= 40

-- Protocol Error Causes
ErrorCodes ::= ENUMERATED {
	unDefined (0),
missingComponet (1),			
incorrectData (2),			
missingIEorComponentElement (3),		
messageTooShort (4),			
unknowReferenceNumber (5),		
...
}

-- exception handling:
-- an unrecognized value shall be treated the same as value 0

-- GPS assistance data IE
GPS-AssistData ::= SEQUENCE {
	controlHeader		ControlHeader
}

-- More Assistance Data To Be Sent IE
-- More Assistance Data Components On the Way indication for delivery of an entire set of assistance
-- data in multiple Assistance Data components.

MoreAssDataToBeSent ::= ENUMERATED {
	noMoreMessages (0),			-- This is the only or last Assistance Data message used to deliver
								-- the entire set of assistance data.
	moreMessagesOnTheWay (1)	-- The SMLC will send more Assistance Data messages or a final RRLP
								-- Measure Position Request message to deliver the
								-- the entire set of assistance data.
}

-- Control header of the GPS assistance data
ControlHeader ::= SEQUENCE {

	-- Field type Present information
	referenceTime		ReferenceTime		OPTIONAL,
	refLocation			RefLocation			OPTIONAL,
	dgpsCorrections		DGPSCorrections		OPTIONAL,
	navigationModel		NavigationModel		OPTIONAL,
	ionosphericModel	IonosphericModel	OPTIONAL,
	utcModel			UTCModel			OPTIONAL,
	almanac				Almanac				OPTIONAL,
	acquisAssist		AcquisAssist		OPTIONAL,
	realTimeIntegrity SeqOf-BadSatelliteSet OPTIONAL
}

ReferenceTime ::= SEQUENCE {
	gpsTime				GPSTime,
	gsmTime				GSMTime				OPTIONAL,
	gpsTowAssist		GPSTOWAssist		OPTIONAL
}

-- GPS Time includes week number and time-of-week (TOW)
GPSTime ::= SEQUENCE {
	gpsTOW23b			GPSTOW23b,
	gpsWeek				GPSWeek
}

-- GPSTOW, range 0-604799.92, resolution 0.08 sec, 23-bit presentation
GPSTOW23b ::= INTEGER (0..7559999)

-- GPS week number
GPSWeek ::= INTEGER (0..1023)

-- GPSTOWAssist consists of TLM message, Anti-spoof flag, Alert flag, and 2 reserved bits in TLM Word
-- for each visible satellite.
-- N_SAT can be read from number of elements in GPSTOWAssist
GPSTOWAssist ::= SEQUENCE (SIZE(1..12)) OF GPSTOWAssistElement

GPSTOWAssistElement ::= SEQUENCE {
	satelliteID			SatelliteID,
	tlmWord				TLMWord,
	antiSpoof			AntiSpoofFlag,
	alert				AlertFlag,
	tlmRsvdBits			TLMReservedBits
}

-- TLM Word, 14 bits
TLMWord ::= INTEGER (0..16383)

-- Anti-Spoof flag
AntiSpoofFlag ::= INTEGER (0..1)

-- Alert flag
AlertFlag ::= INTEGER (0..1)

-- Reserved bits in TLM word, MSB occurs earlier in TLM Word transmitted by satellite
TLMReservedBits ::= INTEGER (0..3)

GSMTime ::= SEQUENCE {
	bcchCarrier		BCCHCarrier,	-- BCCH carrier
	bsic			BSIC,			-- BSIC
	frameNumber		FrameNumber,
	timeSlot		TimeSlot,
	bitNumber		BitNumber
}

-- Frame number
FrameNumber ::= INTEGER (0..2097151)

-- Time slot number
TimeSlot ::= INTEGER (0..7)

-- Bit number
BitNumber ::= INTEGER (0..156)


-- Reference Location IE
RefLocation ::= SEQUENCE {
	threeDLocation			Ext-GeographicalInformation
}

-- DGPS Corrections IE
DGPSCorrections ::= SEQUENCE {

	gpsTOW		INTEGER (0..604799),	-- DGPS reference time
	status		INTEGER (0..7),
	-- N_SAT can be read from number of elements of satList
	satList		SeqOfSatElement 	
}
SeqOfSatElement ::= SEQUENCE (SIZE (1..16)) OF SatElement

-- number of correction for satellites
SatElement ::= SEQUENCE {
	satelliteID		SatelliteID,

--- Sequence number for ephemeris
	iode 			INTEGER (0..239),
	-- User Differential Range Error
	udre			INTEGER (0..3),		

	-- Pseudo Range Correction, range is
	-- -655.04 - +655.04,
	pseudoRangeCor	INTEGER (-2047..2047), 	

	-- Pseudo Range Rate Correction, range is
	-- -4.064 - +4.064,
	rangeRateCor	INTEGER (-127..127),

-- Delta Pseudo Range Correction 2 	
	deltaPseudoRangeCor2 	INTEGER (-127..127),	-- This IE shall be ignored by the receiver and
													-- set to zero by the sender
	-- Delta Pseudo Range Correction 2	
	deltaRangeRateCor2		INTEGER (-7..7),		-- This IE shall be ignored by the receiver and
													-- set to zero by the sender
	-- Delta Pseudo Range Correction 3
	deltaPseudoRangeCor3 	INTEGER (-127..127),	-- This IE shall be ignored by the receiver and
													-- set to zero by the sender
	-- Delta Pseudo Range Correction 3
	deltaRangeRateCor3		INTEGER (-7..7)			-- This IE shall be ignored by the receiver and
													-- set to zero by the sender
}

SatelliteID ::= INTEGER (0..63)	-- identifies satellite

-- Navigation Model IE
NavigationModel ::= SEQUENCE {
	navModelList	SeqOfNavModelElement	
}

-- navigation model satellite list
SeqOfNavModelElement ::= SEQUENCE (SIZE(1..16)) OF NavModelElement

NavModelElement ::= SEQUENCE {
	satelliteID		SatelliteID,			
	satStatus		SatStatus		-- satellite status
}

-- the Status of the navigation model
SatStatus ::= CHOICE {
	-- New satellite, new Navigation Model
	newSatelliteAndModelUC	UncompressedEphemeris,

	-- Existing satellite, Existing Navigation Model
	oldSatelliteAndModel	NULL,

	-- Existing satellite, new Navigation Model
	newNaviModelUC			UncompressedEphemeris,
	...
}

-- Uncompressed satellite emhemeris and clock corrections
UncompressedEphemeris ::= SEQUENCE {
	ephemCodeOnL2	INTEGER (0..3),
	ephemURA		INTEGER (0..15),
	ephemSVhealth	INTEGER (0..63),
	ephemIODC		INTEGER	(0..1023),
	ephemL2Pflag	INTEGER (0..1),
	ephemSF1Rsvd	EphemerisSubframe1Reserved,
	ephemTgd		INTEGER (-128..127),
	ephemToc		INTEGER (0..37799),
	ephemAF2		INTEGER (-128..127),
	ephemAF1		INTEGER (-32768..32767),
	ephemAF0		INTEGER (-2097152..2097151),
	ephemCrs		INTEGER (-32768..32767),
	ephemDeltaN		INTEGER (-32768..32767),
	ephemM0			INTEGER (-2147483648..2147483647),
	ephemCuc		INTEGER (-32768..32767),
	ephemE			INTEGER (0..4294967295),
	ephemCus		INTEGER (-32768..32767),
	ephemAPowerHalf	INTEGER (0..4294967295),
	ephemToe		INTEGER (0..37799),
	ephemFitFlag	INTEGER (0..1),
	ephemAODA		INTEGER (0..31),
	ephemCic		INTEGER (-32768..32767),
	ephemOmegaA0	INTEGER (-2147483648..2147483647),
	ephemCis		INTEGER (-32768..32767),
	ephemI0			INTEGER (-2147483648..2147483647),
	ephemCrc		INTEGER (-32768..32767),
	ephemW			INTEGER (-2147483648..2147483647),
	ephemOmegaADot	INTEGER (-8388608..8388607),
	ephemIDot		INTEGER (-8192..8191)
}

-- Reserved bits in subframe 1 of navigation message
EphemerisSubframe1Reserved ::= SEQUENCE {
	reserved1		INTEGER (0..8388607),	-- 23-bit field
	reserved2		INTEGER (0..16777215),	-- 24-bit field
	reserved3		INTEGER (0..16777215),	-- 24-bit field
	reserved4		INTEGER (0..65535)		-- 16-bit field
}

-- Ionospheric Model IE
IonosphericModel ::= SEQUENCE {
	alfa0			INTEGER (-128..127),
	alfa1			INTEGER (-128..127),
	alfa2			INTEGER (-128..127),
	alfa3			INTEGER (-128..127),
	beta0			INTEGER (-128..127),
	beta1			INTEGER (-128..127),
	beta2			INTEGER (-128..127),
	beta3			INTEGER (-128..127)
}

-- Universal Time Coordinate Model
UTCModel ::= SEQUENCE {
	utcA1			INTEGER (-8388608..8388607),
	utcA0			INTEGER (-2147483648..2147483647),
	utcTot			INTEGER (0..255),
	utcWNt			INTEGER (0..255),
	utcDeltaTls		INTEGER (-128..127),
	utcWNlsf		INTEGER (0..255),
	utcDN			INTEGER (-128..127),
	utcDeltaTlsf	INTEGER (-128..127)
}

-- Almanac, Long term model
-- NOTE: These are parameters are subset of the ephemeris
-- NOTE: But with reduced resolution and accuracy
Almanac ::= SEQUENCE {
	alamanacWNa		INTEGER (0..255),	-- Once per message

	-- navigation model satellite list.
	-- The size of almanacList is actually Nums_Sats_Total field
	almanacList		SeqOfAlmanacElement		
}
SeqOfAlmanacElement ::= SEQUENCE (SIZE(1..64)) OF AlmanacElement

-- Almanac info once per satellite
AlmanacElement ::= SEQUENCE {
	satelliteID			SatelliteID,
	almanacE			INTEGER (0..65535),
	alamanacToa			INTEGER (0..255),
	almanacKsii			INTEGER (-32768..32767),
	almanacOmegaDot		INTEGER (-32768..32767),
	almanacSVhealth		INTEGER (0..255),
	almanacAPowerHalf	INTEGER (0..16777215),
	almanacOmega0		INTEGER (-8388608..8388607),
	almanacW			INTEGER (-8388608..8388607),
	almanacM0			INTEGER (-8388608..8388607),
	almanacAF0			INTEGER (-1024..1023),
	almanacAF1			INTEGER (-1024..1023)
}

-- Acquisition Assistance
AcquisAssist ::= SEQUENCE {

	-- Number of Satellites can be read from acquistList
	timeRelation	TimeRelation,

	-- Acquisition assistance list
	-- The size of Number of Satellites is actually Number of Satellites field
	acquisList		SeqOfAcquisElement		
}
SeqOfAcquisElement ::= SEQUENCE (SIZE(1..16)) OF AcquisElement

-- the relationship between GPS time and air-interface timing
TimeRelation ::= SEQUENCE {
	--
	gpsTOW		GPSTOW23b,		-- 23b presentation
	gsmTime		GSMTime		OPTIONAL
}

-- data occuring per number of satellites
AcquisElement ::= SEQUENCE {
	svid					SatelliteID,

	-- Doppler 0th order term,
	-- -5120.0 - 5117.5 Hz (= -2048 - 2047 with 2.5 Hz resolution)
	doppler0				INTEGER (-2048..2047),	
	addionalDoppler			AddionalDopplerFields	OPTIONAL,
	codePhase				INTEGER (0..1022),	-- Code Phase
	intCodePhase			INTEGER (0..19),	-- Integer Code Phase
	gpsBitNumber			INTEGER (0..3), 	-- GPS bit number
	codePhaseSearchWindow	INTEGER (0..15),	-- Code Phase Search Window
	addionalAngle			AddionalAngleFields		OPTIONAL
}

AddionalDopplerFields ::= SEQUENCE {
	-- Doppler 1st order term, -1.0 - +0.5 Hz/sec
 -- (= -42 + (0 to 63) with 1/42 Hz/sec. resolution)
	doppler1				INTEGER (0..63),
	dopplerUncertainty		INTEGER (0..7)
 -- a sender shall not encode any DopplerUncertainty value in the range 5 to 7
 -- a receiver shall ignore any value between 5 and 7.
}

AddionalAngleFields	::= SEQUENCE {
	-- azimuth angle, 0 - 348.75 deg (= 0 - 31 with 11.25 deg resolution)
	azimuth					INTEGER (0..31),
	-- elevation angle, 0 - 78.75 deg (= 0 - 7 with 11.25 deg resolution)
	elevation				INTEGER (0..7)
}

-- Real-Time Integrity
-- number of bad satellites can be read from this element
SeqOf-BadSatelliteSet ::= SEQUENCE (SIZE(1..16)) OF SatelliteID

-- Extension Elements

-- Release 98 Extensions here
Rel98-MsrPosition-Req-Extension ::= SEQUENCE {
	rel98-Ext-ExpOTD			Rel98-Ext-ExpOTD		OPTIONAL,	-- ExpectedOTD extension
	..., 
 gpsTimeAssistanceMeasurementRequest NULL OPTIONAL, 
 gpsReferenceTimeUncertainty GPSReferenceTimeUncertainty OPTIONAL

-- Further R98 extensions here
}
Rel98-AssistanceData-Extension ::= SEQUENCE {
	rel98-Ext-ExpOTD			Rel98-Ext-ExpOTD		OPTIONAL,	-- ExpectedOTD extension
	..., 
 gpsTimeAssistanceMeasurementRequest NULL OPTIONAL,
 gpsReferenceTimeUncertainty GPSReferenceTimeUncertainty OPTIONAL

-- Further R98 extensions here
}

-- Release 98 ExpOTD extension
Rel98-Ext-ExpOTD ::= SEQUENCE {
-- If MsrAssistBTS is included in message, msrAssistData-R98-ExpOTD shall be included.
	msrAssistData-R98-ExpOTD			MsrAssistData-R98-ExpOTD			OPTIONAL,

-- If SystemInfoAssistaData is included in message, systemInfoAssistData-R98-ExpOTD shall be
-- included.
	systemInfoAssistData-R98-ExpOTD	SystemInfoAssistData-R98-ExpOTD	OPTIONAL
}

-- MsrAssistData R98 extension
MsrAssistData-R98-ExpOTD ::= SEQUENCE {
	 msrAssistList-R98-ExpOTD			 SeqOfMsrAssistBTS-R98-ExpOTD
}

-- Indexes in SeqOfMsrAssistBTS-R98-ExpOTD refer to SeqOfMsrAssistBTS
-- If the index exceeds the SegOfMsrAssistBTS range or if there is other
-- inconsistencies between the BTS indices, the MS shall apply protocol
-- error cause incorrectData
SeqOfMsrAssistBTS-R98-ExpOTD ::= SEQUENCE (SIZE(1..15)) OF MsrAssistBTS-R98-ExpOTD

-- This element completes MsrAssistBTS IE
MsrAssistBTS-R98-ExpOTD ::= SEQUENCE {
	expectedOTD				ExpectedOTD,
	expOTDUncertainty		ExpOTDUncertainty
}

-- SystemInfoAssistData R98 extension
SystemInfoAssistData-R98-ExpOTD ::= SEQUENCE {
	systemInfoAssistListR98-ExpOTD 	SeqOfSystemInfoAssistBTS-R98-ExpOTD
}

-- SeqOfSystemInfoAssistBTS-R98-ExpOTD index refer to SeqOfSystemInfoAssistBTS
-- If the index exceeds the SegOfSystemInfoAssistBTS range or if there is other
-- inconsistencies between the BTS indices, the MS shall apply protocol
-- error cause incorrectData
SeqOfSystemInfoAssistBTS-R98-ExpOTD ::= SEQUENCE (SIZE(1..32)) OF SystemInfoAssistBTS-R98-ExpOTD

-- whether n.th is present or not ?
SystemInfoAssistBTS-R98-ExpOTD ::= CHOICE {
	notPresent		NULL,
	present			AssistBTSData-R98-ExpOTD
}

-- This element completes AssistBTSData IE
AssistBTSData-R98-ExpOTD ::= SEQUENCE {
	expectedOTD				ExpectedOTD,
	expOTDuncertainty		ExpOTDUncertainty	-- Uncertainty of expected OTD
}

-- Expected OTD value between nbor base station and reference BTS
-- at MS's current estimated location.
ExpectedOTD ::= INTEGER (0..1250)
-- The ExpectedOTD value 1250 shall not be encoded by the transmitting entity and
-- shall be treated by the receiving entity as 0.
-- Uncertainty of Exptected OTD in bits
ExpOTDUncertainty ::= INTEGER(0..7)

-- Release 98 extensions

GPSReferenceTimeUncertainty ::= INTEGER (0 .. 127) 		-- Coding according to Annex

GPSTimeAssistanceMeasurements ::= SEQUENCE {
 referenceFrameMSB INTEGER (0 .. 63)	OPTIONAL, 		-- MSB of frame number
 gpsTowSubms INTEGER (0 .. 9999) 		OPTIONAL, 		-- in units of 100ns, for MS based AGPS
 deltaTow INTEGER (0 .. 127) 			OPTIONAL, 		-- for MS assisted AGPS
 gpsReferenceTimeUncertainty GPSReferenceTimeUncertainty OPTIONAL
}

Rel-98-MsrPosition-Rsp-Extension ::= SEQUENCE {

	-- First extension to Release 98
	rel-98-Ext-MeasureInfo	SEQUENCE {
		otd-MeasureInfo-R98-Ext	OTD-MeasureInfo-R98-Ext		OPTIONAL
	},
	..., 
 timeAssistanceMeasurements GPSTimeAssistanceMeasurements OPTIONAL 
 -- Further R98 extensions here
}

-- This is an addition to OTD-MeasureInfo element defined in original message,
-- If OTD-MeasureInfo is absent, or if one or more OTD-MsrElementRest are present
-- OTD-MeasureInfo-R98-Ext shall be absent.
-- OTD-MeasureInfo-R98-Ext
OTD-MeasureInfo-R98-Ext ::= SEQUENCE {
	-- Measurement info elements
	otdMsrFirstSets-R98-Ext		OTD-MsrElementFirst-R98-Ext
}

-- OTD measurement information Ext for the first set only
OTD-MsrElementFirst-R98-Ext ::= SEQUENCE {
	-- additional measured neighbors in OTD measurements
	otd-FirstSetMsrs-R98-Ext 	SeqOfOTD-FirstSetMsrs-R98-Ext 	OPTIONAL
}
SeqOfOTD-FirstSetMsrs-R98-Ext ::= SEQUENCE (SIZE(1..5)) OF OTD-FirstSetMsrs

Rel-5-MsrPosition-Rsp-Extension ::= SEQUENCE {

	extended-reference	Extended-reference 	OPTIONAL,
	-- The extended-reference shall be included by the MS if and only if previously
	-- received from the SMLC in a Measure Position Request. When included, the value sent
	-- by the MS shall equal the value received from the SMLC.

	-- extension to Release 5, for RRLP pseudo-segmentation here
	otd-MeasureInfo-5-Ext	OTD-MeasureInfo-5-Ext	OPTIONAL,
	ulPseudoSegInd			UlPseudoSegInd			OPTIONAL,	-- Included when uplink RRLP
	-- Pseudo-segmentation is used, not included when no uplink pseudo-segmentation is used
	...
					-- Possibly more extensions for Release 5 here later
}

Extended-reference ::= SEQUENCE {
	smlc-code			INTEGER (0..63),
	transaction-ID		INTEGER (0..262143)
}

OTD-MeasureInfo-5-Ext ::= SeqOfOTD-MsrElementRest
	-- if more than one measurement sets are present this element is repeated
	-- NumberOfSets - 1 (-1 = first set) combined in OTD-MeasureInfo-5-Ext and
	-- OTD-MeasureInfo (e.g. if NumberOfSets is 3, then one otdMsrRestSets may
	-- be sent in OTD-MeasureInfo-5-Ext and one in OTD-MeasureInfo)

-- First part of Uplink RRLP Pseudo-segmentation indication, possibly more may be defined
-- in the future for segmentation with more than two segments.
UlPseudoSegInd ::= ENUMERATED {
	firstOfMany (0),
	secondOfMany(1)
}

Rel5-MsrPosition-Req-Extension ::= SEQUENCE {
	extended-reference			Extended-reference,
	...
	-- Possibly more extensions for Release 5 here later
}

Rel5-AssistanceData-Extension ::= SEQUENCE {
	extended-reference			Extended-reference,
	...

-- Possibly more extensions for Release 5 here later
}

Rel-5-ProtocolError-Extension::= SEQUENCE {
	extended-reference			Extended-reference 	OPTIONAL,
	-- The extended-reference shall be included by the MS if and only if previously
	-- received from the SMLC.
	-- When included, the value sent by the MS shall equal the value received from the SMLC.
	...

	-- Possibly more extensions for Release 5 here later
}

-- Release 7 Extensions here

Rel7-MsrPosition-Req-Extension ::= SEQUENCE {
	velocityRequested								NULL					OPTIONAL,
	ganssPositionMethod								GANSSPositioningMethod	OPTIONAL,
	ganss-AssistData								GANSS-AssistData		OPTIONAL,
	ganssCarrierPhaseMeasurementRequest				NULL					OPTIONAL,
	ganssTODGSMTimeAssociationMeasurementRequest	NULL					OPTIONAL,
	requiredResponseTime							RequiredResponseTime	OPTIONAL,
	add-GPS-AssistData								Add-GPS-AssistData		OPTIONAL,
	ganssMultiFreqMeasurementRequest				NULL					OPTIONAL,
	...
	-- Further Release 7 extentions here
}

-- additional satellite systems may be added in future versions of the protocol
-- Bit 0 of GANSSPositioningMethod bit map shall not be the only one set to TRUE ('1')
GANSSPositioningMethod ::= BIT STRING {
	gps 	 	 	 (0),
	galileo 	 	 (1),
	sbas 	 	 	 (2),
	modernizedGPS 	 (3),
	qzss 	 	 	 (4),
	glonass 	 	 (5) } (SIZE (2..16))

GANSS-AssistData ::= SEQUENCE {
	ganss-controlHeader	GANSS-ControlHeader
}
GANSS-ControlHeader ::= SEQUENCE {
 ganssCommonAssistData 			GANSSCommonAssistData 				OPTIONAL,
 ganssGenericAssistDataList 	SeqOfGANSSGenericAssistDataElement 	OPTIONAL
}

-- GANSS Common Assistance Data Elements
GANSSCommonAssistData ::= SEQUENCE {
	ganssReferenceTime		 	GANSSReferenceTime		 	OPTIONAL,
	ganssRefLocation			GANSSRefLocation		 	OPTIONAL,
	ganssIonosphericModel		GANSSIonosphericModel	 	OPTIONAL,
	... ,
	ganssAddIonosphericModel	GANSSAddIonosphericModel	OPTIONAL,
	ganssEarthOrientParam		GANSSEarthOrientParam		OPTIONAL
}

-- List of GANSS Generic Assistance Data Elements, up to 8 GANSS
SeqOfGANSSGenericAssistDataElement ::= SEQUENCE (SIZE (1..8)) OF GANSSGenericAssistDataElement
-- GANSS Generic Assistance Data Elements
GANSSGenericAssistDataElement ::= SEQUENCE {
	ganssID 	INTEGER (0..7)	OPTIONAL, -- Coding according to Annex
	ganssTimeModel	SeqOfGANSSTimeModel	OPTIONAL,
	ganssDiffCorrections	GANSSDiffCorrections	OPTIONAL,
	ganssNavigationModel	GANSSNavModel	OPTIONAL,
	ganssRealTimeIntegrity	GANSSRealTimeIntegrity	OPTIONAL,
	ganssDataBitAssist	GANSSDataBitAssist	OPTIONAL,
	ganssRefMeasurementAssist	GANSSRefMeasurementAssist 	OPTIONAL,
	ganssAlmanacModel	GANSSAlmanacModel	OPTIONAL,
	ganssUTCModel	GANSSUTCModel	OPTIONAL,
	ganssEphemerisExtension	GANSSEphemerisExtension	OPTIONAL,
	ganssEphemerisExtCheck	GANSSEphemerisExtensionCheck	OPTIONAL,
	... ,
	sbasID	INTEGER (0..7) 	OPTIONAL, -- Coding according to Annex
	ganssAddUTCModel	GANSSAddUTCModel	OPTIONAL,
	ganssAuxiliaryInfo	GANSSAuxiliaryInformation	OPTIONAL,
	ganssDiffCorrectionsValidityPeriod	GANSSDiffCorrectionsValidityPeriod	OPTIONAL
}

-- GANSS COMMON ASSISTANCE DATA ELEMENTS

-- GANSS Reference Time IE
GANSSReferenceTime ::= SEQUENCE {
	ganssRefTimeInfo				GANSSRefTimeInfo,
	ganssTOD-GSMTimeAssociation 	GANSSTOD-GSMTimeAssociation OPTIONAL
}

-- GANSS Reference Time includes GANSS TOD, GANSS Day, uncertainty
GANSSRefTimeInfo ::= SEQUENCE {
	ganssDay			 INTEGER(0 .. 8191) 	 OPTIONAL,
 	ganssTOD			 GANSSTOD,
	ganssTODUncertainty	 GANSSTODUncertainty	 OPTIONAL,
 	ganssTimeID 		 INTEGER (0 .. 7) 		 OPTIONAL
}

-- GANSS TOD integer seconds
GANSSTOD ::= INTEGER (0 .. 86399)

-- GANSS TOD uncertainty
GANSSTODUncertainty ::= INTEGER (0 .. 127) -- Coding according to Annex

-- GANSS TOD-GSM Time association 
GANSSTOD-GSMTimeAssociation ::= SEQUENCE {
	bcchCarrier		BCCHCarrier,	-- BCCH carrier
	bsic			BSIC,			-- BSIC
	frameNumber		FrameNumber,
	timeSlot		TimeSlot,
	bitNumber		BitNumber,
 	frameDrift 		FrameDrift 			OPTIONAL
}

-- Frame drift
FrameDrift ::= INTEGER(-64 .. 63)

-- GANSS Reference Location IE
GANSSRefLocation ::= SEQUENCE {
	threeDLocation			Ext-GeographicalInformation
}

-- GANSS Ionospheric Model IE
-- GANSS Ionospheric Model consists of NeQuick model parameters and storm flags
GANSSIonosphericModel ::= SEQUENCE {
 	ganssIonoModel 			GANSSIonosphereModel,
 	ganssIonoStormFlags 	GANSSIonoStormFlags 			OPTIONAL,
 	...
}

-- GANSS ionosphere model. Coding according to Annex 
GANSSIonosphereModel ::= SEQUENCE {
 	ai0 INTEGER (0 .. 4095),
 	ai1 INTEGER (0 .. 4095),
 	ai2 INTEGER (0 .. 4095)
}

-- GANSS ionosphere storm flags
GANSSIonoStormFlags ::= SEQUENCE {
	ionoStormFlag1	INTEGER (0 .. 1),
	ionoStormFlag2	INTEGER (0 .. 1),
	ionoStormFlag3	INTEGER (0 .. 1),
	ionoStormFlag4	INTEGER (0 .. 1),
	ionoStormFlag5	INTEGER (0 .. 1)
}

-- GANSS Additional Ionospheric Model IE
-- GANSS Additional Ionospheric Model consists of Klobuchar model parameters
GANSSAddIonosphericModel ::= SEQUENCE {
	dataID		BIT STRING (SIZE (2)), 	 -- Coding according to Annex
	ionoModel	IonosphericModel
}

-- GANSS Earth Orientation Paramaters IE
GANSSEarthOrientParam ::= SEQUENCE {
	teop				INTEGER (0..65535),
	pmX					INTEGER (-1048576..1048575),
	pmXdot				INTEGER (-16384..16383),
	pmY					INTEGER (-1048576..1048575),
	pmYdot				INTEGER (-16384..16383),
	deltaUT1			INTEGER (-1073741824..1073741823),
	deltaUT1dot			INTEGER (-262144..262143)
}

-- GANSS GENERIC ASSISTANCE DATA ELEMENTS

-- GANSS Time Model IE consists of time offset and first and second order parameters to relate GNSS
-- specific system time to selected time reference
SeqOfGANSSTimeModel ::= SEQUENCE (SIZE(1..7)) OF GANSSTimeModelElement

GANSSTimeModelElement ::= SEQUENCE {
	ganssTimeModelRefTime		INTEGER(0 .. 65535),
	tA0		 					TA0,
	tA1		 					TA1 					OPTIONAL,
	tA2		 					TA2 					OPTIONAL,
 	gnssTOID 					INTEGER (0 .. 7), 		-- coding according to annex
 	weekNumber 					INTEGER (0 .. 8191) 	OPTIONAL 
}

-- GANSS time model parameter A0
TA0 ::= INTEGER (-2147483648 .. 2147483647)

-- GANSS time model parameter A1
TA1 ::= INTEGER (-8388608 .. 8388607)

-- GANSS time model parameter A2
TA2 ::= INTEGER (-64 .. 63)


-- DGANSS Corrections IE
GANSSDiffCorrections ::= SEQUENCE {
	dganssRefTime		INTEGER (0 .. 119),	 -- DGANSS reference time

	-- N_SGN_TYPE can be read from number of elements of sgnTypeList
	sgnTypeList		 SeqOfSgnTypeElement
}

SeqOfSgnTypeElement ::= SEQUENCE (SIZE (1..3)) OF SgnTypeElement -- max three signals per GNSS

-- DGANSS signal type element, once per GNSS signal type included in DGANSS
SgnTypeElement ::= SEQUENCE {
	ganssSignalID		 GANSSSignalID, -- signal type identity
 	ganssStatusHealth	 INTEGER (0 .. 7),
	-- N_SAT can be read from number of elements of dganssSgnList
 	dganssSgnList		 SeqOfDGANSSSgnElement
}

GANSSSignalID ::= INTEGER (0 .. 7)	-- Coding according to Annex
SeqOfDGANSSSgnElement ::= SEQUENCE (SIZE (1..16)) OF DGANSSSgnElement

-- number of correction for signals
DGANSSSgnElement ::= SEQUENCE {
	svID		 	SVID, -- Satellite identity

--- Sequence number for GANSS Navigation Model that matches the DGANSS correction set
	iod 			INTEGER (0 .. 1023),

	-- User Differential Range Error
	udre			INTEGER (0..3),		

	-- Pseudo Range Correction, range is
	-- -655.04 - +655.04,
	pseudoRangeCor	INTEGER (-2047..2047), 	

	-- Pseudo Range Rate Correction, range is
	-- -4.064 - +4.064,
	rangeRateCor	INTEGER (-127..127)
}

SVID ::= INTEGER (0 .. 63)	-- Coding according to Annex

-- GANSS Navigation Model IE
GANSSNavModel ::= SEQUENCE {
 	nonBroadcastIndFlag 	INTEGER (0 .. 1), 
	ganssSatelliteList 		SeqOfGANSSSatelliteElement
}

SeqOfGANSSSatelliteElement ::= SEQUENCE (SIZE(1..32)) OF GANSSSatelliteElement

GANSSSatelliteElement ::= SEQUENCE {
 svID 				SVID,
 svHealth 			BIT STRING (SIZE(5)), 	-- Coding according to Annex
 iod 				INTEGER (0 .. 1023), 	-- Coding according to Annex
 ganssClockModel 	GANSSClockModel, 
 ganssOrbitModel 	GANSSOrbitModel,  
 ...,
 svHealthMSB		BIT STRING (SIZE(1)) 	OPTIONAL, -- Coding according to Annex
 iodMSB				INTEGER (0 .. 1) 		OPTIONAL  -- Coding according to Annex
}

-- GANSS orbit model for the GNSS satellite according to the choice
GANSSOrbitModel ::= CHOICE {
	keplerianSet	 	NavModel-KeplerianSet,		-- Model-1
	... ,
	navKeplerianSet	 	NavModel-NAVKeplerianSet, 	-- Model-2
	cnavKeplerianSet	NavModel-CNAVKeplerianSet, 	-- Model-3
	glonassECEF			NavModel-GLONASSecef, 		-- Model-4
	sbasECEF			NavModel-SBASecef			-- Model-5
}

-- Navigation model in Keplerian parameters
NavModel-KeplerianSet ::= SEQUENCE {
	keplerToe 		 INTEGER (0 .. 16383), 
	keplerW			 INTEGER (-2147483648..2147483647),
	keplerDeltaN	 INTEGER (-32768..32767),
	keplerM0		 INTEGER (-2147483648..2147483647),
	keplerOmegaDot	 INTEGER (-8388608..8388607),
	keplerE 	 	 INTEGER (0..4294967295),
	keplerIDot		 INTEGER (-8192..8191),
	keplerAPowerHalf INTEGER (0.. 4294967295),
	keplerI0		 INTEGER (-2147483648..2147483647),
	keplerOmega0 	 INTEGER (-2147483648..2147483647),
	keplerCrs		 INTEGER (-32768..32767),
	keplerCis		 INTEGER (-32768..32767),
	keplerCus		 INTEGER (-32768..32767),
	keplerCrc		 INTEGER (-32768..32767),
	keplerCic		 INTEGER (-32768..32767),
	keplerCuc		 INTEGER (-32768..32767)
}

NavModel-NAVKeplerianSet ::= SEQUENCE {
	navURA			INTEGER (0..15),
	navFitFlag		INTEGER (0..1),
	navToe			INTEGER (0..37799),
	navOmega		INTEGER (-2147483648..2147483647),
	navDeltaN		INTEGER (-32768..32767),
	navM0			INTEGER (-2147483648..2147483647),
	navOmegaADot	INTEGER (-8388608..8388607),
	navE			INTEGER (0..4294967295),
	navIDot			INTEGER (-8192..8191),
	navAPowerHalf	INTEGER (0..4294967295),
	navI0			INTEGER (-2147483648..2147483647),
	navOmegaA0		INTEGER (-2147483648..2147483647),
	navCrs			INTEGER (-32768..32767),
	navCis			INTEGER (-32768..32767),
	navCus			INTEGER (-32768..32767),
	navCrc			INTEGER (-32768..32767),
	navCic			INTEGER (-32768..32767),
	navCuc			INTEGER (-32768..32767)
}

NavModel-CNAVKeplerianSet ::= SEQUENCE {
	cnavTop				INTEGER (0..2015),
	cnavURAindex		INTEGER (-16..15),
	cnavDeltaA			INTEGER (-33554432..33554431),
	cnavAdot			INTEGER (-16777216..16777215),
	cnavDeltaNo			INTEGER (-65536..65535),
	cnavDeltaNoDot		INTEGER (-4194304..4194303),
	cnavMo				INTEGER (-4294967296..4294967295),
	cnavE				INTEGER (0..8589934591),
	cnavOmega			INTEGER (-4294967296..4294967295),
	cnavOMEGA0			INTEGER (-4294967296..4294967295),
	cnavDeltaOmegaDot	INTEGER (-65536..65535),
	cnavIo				INTEGER (-4294967296..4294967295),
	cnavIoDot			INTEGER (-16384..16383),
	cnavCis				INTEGER (-32768..32767),
	cnavCic				INTEGER (-32768..32767),
	cnavCrs				INTEGER (-8388608..8388607),
	cnavCrc				INTEGER (-8388608..8388607),
	cnavCus				INTEGER (-1048576..1048575),
	cnavCuc				INTEGER (-1048576..1048575)
}

NavModel-GLONASSecef ::= SEQUENCE {
	gloEn				INTEGER (0..31),
	gloP1				BIT STRING (SIZE(2)),
	gloP2				BOOLEAN,
	gloM				INTEGER (0..3),
	gloX				INTEGER (-67108864..67108863),
	gloXdot				INTEGER (-8388608..8388607),
	gloXdotdot			INTEGER (-16..15),
	gloY				INTEGER (-67108864..67108863),
	gloYdot				INTEGER (-8388608..8388607),
	gloYdotdot			INTEGER (-16..15),
	gloZ				INTEGER (-67108864..67108863),
	gloZdot				INTEGER (-8388608..8388607),
	gloZdotdot			INTEGER (-16..15)
}


NavModel-SBASecef ::= SEQUENCE {
	sbasTo				INTEGER (0..5399) 					OPTIONAL,
	sbasAccuracy		BIT STRING (SIZE(4)),
	sbasXg				INTEGER (-536870912..536870911),
	sbasYg				INTEGER (-536870912..536870911),
	sbasZg				INTEGER (-16777216..16777215),
	sbasXgDot			INTEGER (-65536..65535),
	sbasYgDot			INTEGER (-65536..65535),
	sbasZgDot			INTEGER (-131072..131071),
	sbasXgDotDot		INTEGER (-512..511),
	sbagYgDotDot		INTEGER (-512..511),
	sbasZgDotDot		INTEGER (-512..511)
}

-- GANSS clock model for the GNSS satellite according to the choice
GANSSClockModel ::= CHOICE {
	standardClockModelList	 SeqOfStandardClockModelElement,	-- Model-1
	... ,
	navClockModel			 NAVclockModel, 					-- Model-2
	cnavClockModel			 CNAVclockModel, 					-- Model-3
	glonassClockModel		 GLONASSclockModel, 				-- Model-4
	sbasClockModel			 SBASclockModel						-- Model-5
}

SeqOfStandardClockModelElement ::= SEQUENCE (SIZE(1..2)) OF StandardClockModelElement

StandardClockModelElement ::= SEQUENCE {
 	stanClockToc 	INTEGER (0 .. 16383), 
 	stanClockAF2 	INTEGER (-2048 .. 2047), 
 	stanClockAF1 	INTEGER (-131072 .. 131071), 
 	stanClockAF0 	INTEGER (-134217728 .. 134217727),
 	stanClockTgd 	INTEGER (-512 .. 511) 				OPTIONAL,
 	stanModelID 	INTEGER (0 .. 1) 					OPTIONAL,
 	...
} 

NAVclockModel ::= SEQUENCE {
	navToc			INTEGER (0.. 37799),
	navaf2			INTEGER (-128..127),
	navaf1			INTEGER (-32768..32767),
	navaf0			INTEGER (-2097152..2097151),
	navTgd			INTEGER (-128..127)
}

CNAVclockModel ::= SEQUENCE {
	cnavToc			INTEGER (0..2015),
	cnavTop			INTEGER (0..2015),
	cnavURA0		INTEGER (-16..15),
	cnavURA1		INTEGER (0..7),
	cnavURA2		INTEGER (0..7),
	cnavAf2			INTEGER (-512..511),
	cnavAf1			INTEGER (-524288..524287),
	cnavAf0			INTEGER (-33554432..33554431),
	cnavTgd			INTEGER (-4096..4095),
	cnavISCl1cp		INTEGER (-4096..4095) 			OPTIONAL,
	cnavISCl1cd		INTEGER (-4096..4095) 			OPTIONAL,
	cnavISCl1ca		INTEGER (-4096..4095) 			OPTIONAL,
	cnavISCl2c		INTEGER (-4096..4095) 			OPTIONAL,
	cnavISCl5i5		INTEGER (-4096..4095) 			OPTIONAL,
	cnavISCl5q5		INTEGER (-4096..4095) 			OPTIONAL
}

GLONASSclockModel ::= SEQUENCE {
	gloTau			INTEGER (-2097152..2097151),
	gloGamma		INTEGER (-1024..1023),
	gloDeltaTau		INTEGER (-16..15) 				OPTIONAL
}

SBASclockModel ::= SEQUENCE {
	sbasTo			INTEGER (0..5399),
	sbasAgfo		INTEGER (-2048..2047),
	sbasAgf1		INTEGER (-128..127)
}

-- GANSS Real-Time Integrity IE
GANSSRealTimeIntegrity ::= SEQUENCE {
 -- list of satellites with bad signals
 -- NBS can be read from number of elements in SeqOf-BadSignalSet
 	ganssBadSignalList 		SeqOfBadSignalElement
}

SeqOfBadSignalElement ::= SEQUENCE (SIZE(1..16)) OF BadSignalElement

BadSignalElement ::= SEQUENCE {
 	badSVID 		SVID, 						 -- Coding according to Annex
 	badSignalID 	GANSSSignals 	OPTIONAL	 -- Coding according to Annex
}

-- GANSS Data Bit Assistance IE
GANSSDataBitAssist ::= SEQUENCE {
	ganssTOD 					INTEGER (0 .. 59),
	-- N_SAT can be read from number of elements in SeqOfGanssDataBitsElement
	ganssDataBitsSatList		SeqOfGanssDataBitsElement,
	...
}

SeqOfGanssDataBitsElement ::= SEQUENCE (SIZE(1 .. 32))OF GanssDataBitsElement

GanssDataBitsElement ::= SEQUENCE {
	svID					SVID,
	-- N_SGN can be read from number of elements in Seq-OfGANSSDataBitsSgn
	ganssDataBitsSgnList	Seq-OfGANSSDataBitsSgn,
	...
}

Seq-OfGANSSDataBitsSgn ::= SEQUENCE (SIZE(1..8)) OF GANSSDataBitsSgnElement

GANSSDataBitsSgnElement ::= SEQUENCE {
	ganssSignalType		GANSSSignalID,
	-- N_BIT can be read from number of elements in SeqOf-DataBits
	ganssDataBits		SeqOf-GANSSDataBits,
	...
}

SeqOf-GANSSDataBits ::= SEQUENCE (SIZE(1 .. 1024)) OF GANSSDataBit
GANSSDataBit ::= INTEGER(0 .. 1)

-- GANSS Reference Measurement Assistance IE
-- Code and Doppler assistance from the network. 
GANSSRefMeasurementAssist ::= SEQUENCE {
	ganssSignalID			GANSSSignalID,	-- Coding according to Annex
	ganssRefMeasAssistList	SeqOfGANSSRefMeasurementElement
}

SeqOfGANSSRefMeasurementElement ::= SEQUENCE (SIZE(1 .. 16)) OF GANSSRefMeasurementElement

GANSSRefMeasurementElement ::= SEQUENCE {
	svID					SVID,
	-- Doppler 0th order term,
	-- -1024 m/s to 1023.5 m/s with 0.5 m/s resolution)
	doppler0				INTEGER (-2048 .. 2047),					-- Coding according to Annex
	additionalDoppler		AdditionalDopplerFields			OPTIONAL,
	codePhase				INTEGER (0 .. 1022),						-- Code Phase in ms
	intCodePhase			INTEGER (0 .. 127),							-- Integer Code Phase in ms
	codePhaseSearchWindow	INTEGER (0 .. 31),				-- Code Phase Search Window, see Annex
	additionalAngle			AddionalAngleFields		 		OPTIONAL,
	...
}

AdditionalDopplerFields ::= SEQUENCE {
	-- Doppler 1st order term, -0.2 - +0.1 m/s2
	-- ( = -42 + (0 to 63) with 1/210 m/s2 resolution)
	doppler1				INTEGER (0..63),
	dopplerUncertainty		INTEGER (0..4)
}

-- GANSS Almanac Model IE
GANSSAlmanacModel ::= SEQUENCE {
 	weekNumber 			INTEGER (0 .. 255),
	toa 				INTEGER (0 .. 255) 	OPTIONAL,
	ioda 				INTEGER (0 .. 3) 	OPTIONAL,
	ganssAlmanacList 	SeqOfGANSSAlmanacElement
}


SeqOfGANSSAlmanacElement ::= SEQUENCE (SIZE(1 .. 36)) OF GANSSAlmanacElement

-- GANSS Almanac Model 
GANSSAlmanacElement ::= CHOICE {
	keplerianAlmanacSet	 	Almanac-KeplerianSet,			-- Model-1
 	...,
	keplerianNAVAlmanac	 	Almanac-NAVKeplerianSet, 		-- Model-2
	keplerianReducedAlmanac	Almanac-ReducedKeplerianSet, 	-- Model-3
	keplerianMidiAlmanac	Almanac-MidiAlmanacSet, 		-- Model-4
	keplerianGLONASS		Almanac-GlonassAlmanacSet, 		-- Model-5
	ecefSBASAlmanac			Almanac-ECEFsbasAlmanacSet		-- Model-6
}

-- Almanac parameters according to Keplerian parameters
Almanac-KeplerianSet ::= SEQUENCE {
	svID					SVID,
 	kepAlmanacE			 	INTEGER (0 .. 2047),
	kepAlmanacDeltaI		INTEGER (-1024 .. 1023),
	kepAlmanacOmegaDot		INTEGER (-1024 .. 1023),
 	kepSVHealth 			INTEGER (0 .. 15), 			 -- Coding according to Annex
	kepAlmanacAPowerHalf	INTEGER (-65536 .. 65535),
	kepAlmanacOmega0		INTEGER (-32768 .. 32767),
	kepAlmanacW			 	INTEGER (-32768 .. 32767),
	kepAlmanacM0			INTEGER (-32768 .. 32767),
	kepAlmanacAF0			INTEGER (-8192 .. 8191),
	kepAlmanacAF1			INTEGER (-1024..1023)
}

Almanac-NAVKeplerianSet ::= SEQUENCE {
	svID					SVID,
	navAlmE					INTEGER (0..65535),
	navAlmDeltaI			INTEGER (-32768..32767),
	navAlmOMEGADOT			INTEGER (-32768..32767),
	navAlmSVHealth			INTEGER (0..255),
	navAlmSqrtA				INTEGER (0..16777215),
	navAlmOMEGAo			INTEGER (-8388608..8388607),
	navAlmOmega				INTEGER (-8388608..8388607),
	navAlmMo				INTEGER (-8388608..8388607),
	navAlmaf0				INTEGER (-1024..1023),
	navAlmaf1				INTEGER (-1024..1023)
}

Almanac-ReducedKeplerianSet ::= SEQUENCE {
	svID					SVID,
	redAlmDeltaA			INTEGER (-128..127),
	redAlmOmega0			INTEGER (-64..63),
	redAlmPhi0				INTEGER (-64..63),
	redAlmL1Health			BOOLEAN,
	redAlmL2Health			BOOLEAN,
	redAlmL5Health			BOOLEAN
}

Almanac-MidiAlmanacSet ::= SEQUENCE {
	svID					SVID,
	midiAlmE				INTEGER (0..2047),
	midiAlmDeltaI			INTEGER (-1024..1023),
	midiAlmOmegaDot			INTEGER (-1024..1023),
	midiAlmSqrtA			INTEGER (0..131071),
	midiAlmOmega0			INTEGER (-32768..32767),
	midiAlmOmega			INTEGER (-32768..32767),
	midiAlmMo				INTEGER (-32768..32767),
	midiAlmaf0				INTEGER (-1024..1023),
	midiAlmaf1				INTEGER (-512..511),
	midiAlmL1Health			BOOLEAN,
	midiAlmL2Health			BOOLEAN,
	midiAlmL5Health			BOOLEAN
}

Almanac-GlonassAlmanacSet ::= SEQUENCE {
	gloAlmNA				INTEGER (1..1461),
	gloAlmnA				INTEGER (1..24),
	gloAlmHA				INTEGER (0..31),
	gloAlmLambdaA			INTEGER (-1048576..1048575),
	gloAlmtlambdaA			INTEGER (0..2097151),
	gloAlmDeltaIa			INTEGER (-131072..131071),
	gloAlmDeltaTA			INTEGER (-2097152..2097151),
	gloAlmDeltaTdotA		INTEGER (-64..63),
	gloAlmEpsilonA			INTEGER (0..32767),
	gloAlmOmegaA			INTEGER (-32768..32767),
	gloAlmTauA				INTEGER (-512..511),
	gloAlmCA				INTEGER (0..1),
	gloAlmMA				BIT STRING (SIZE(2)) 			OPTIONAL
}

Almanac-ECEFsbasAlmanacSet ::= SEQUENCE {
	sbasAlmDataID			INTEGER (0..3),
	svID					SVID,
	sbasAlmHealth			BIT STRING (SIZE(8)),
	sbasAlmXg				INTEGER (-16384..16383),
	sbasAlmYg				INTEGER (-16384..16383),
	sbasAlmZg				INTEGER (-256..255),
	sbasAlmXgdot			INTEGER (-4..3),
	sbasAlmYgDot			INTEGER (-4..3),
	sbasAlmZgDot			INTEGER (-8..7),
	sbasAlmTo				INTEGER (0..2047)
}

-- GANSS Universal Time Coordinate Model (Model-1)
GANSSUTCModel ::= SEQUENCE {
	ganssUtcA1			INTEGER (-8388608..8388607),
	ganssUtcA0			INTEGER (-2147483648..2147483647),
	ganssUtcTot			INTEGER (0..255),
	ganssUtcWNt			INTEGER (0..255),
	ganssUtcDeltaTls	INTEGER (-128..127),
	ganssUtcWNlsf		INTEGER (0..255),
	ganssUtcDN			INTEGER (-128..127),
	ganssUtcDeltaTlsf	INTEGER (-128..127)
}

--GANSS Ephemeris Extension
GANSSEphemerisExtension ::= SEQUENCE {
	ganssEphemerisHeader			GANSSEphemerisExtensionHeader			OPTIONAL,
	ganssReferenceSet				SeqOfGANSSRefOrbit						OPTIONAL,
	ganssephemerisDeltasMatrix		GANSSEphemerisDeltaMatrix				OPTIONAL,
...
}

-- The ganssEphemerisHeader and the ganssReferenceSet are mandatory only once in the delivery of the
-- GANSS Ephemeris Extension.  The ganssReferenceSet shall include all healthy satellite vehicles 
-- at the time of message construction.

GANSSEphemerisExtensionHeader ::= SEQUENCE {
	timeAtEstimation			GANSSEphemerisExtensionTime,
	validityPeriod				INTEGER(1..8),
-- The validity period, represented in hours, is the validity period of each individual ephemeris 
-- delta payload
	ephemerisExtensionDuration	INTEGER(1..512),
-- If the ephemerisExtensionDuration does not match the request duration made by the MS, the MS
-- should regard the provided ephemerisExtensionDuration as the limit of the SMLC ephemeris
-- extension capability at this time.
...
}

GANSSEphemerisExtensionTime ::= SEQUENCE {
	ganssEphExtDay		INTEGER(0..8191),
	ganssEphExtTOD		GANSSTOD,
...
}

-- Reference Nav Model for Ephepmeris Extension
ReferenceNavModel ::= SEQUENCE {
 	keplerToe			INTEGER (0..37799),
	keplerW				INTEGER (-2147483648..2147483647),
	keplerDeltaN		INTEGER (-32768..32767),
	keplerM0			INTEGER (-2147483648..2147483647),
	keplerOmegaDot		INTEGER (-8388608..8388607),
	keplerE				INTEGER (0..4294967295),
	keplerIDot			INTEGER (-8192..8191),
	keplerAPowerHalf	INTEGER (0.. 4294967295),
	keplerI0			INTEGER (-2147483648..2147483647),
	keplerOmega0		INTEGER (-2147483648..2147483647),
	keplerCrs			INTEGER (-32768..32767),
	keplerCis			INTEGER (-32768..32767),
	keplerCus			INTEGER (-32768..32767),
	keplerCrc			INTEGER (-32768..32767),
	keplerCic			INTEGER (-32768..32767),
	keplerCuc			INTEGER (-32768..32767)
}

SeqOfGANSSRefOrbit ::= SEQUENCE (SIZE(1..32)) OF GANSSReferenceOrbit
--The number of reference orbits can be read from number of elements in this sequence

GANSSReferenceOrbit ::= SEQUENCE {
	svID				SVID,
	ganssOrbitModel		ReferenceNavModel, 
	ganssClockModel		GANSSClockModel, 
...
}

GANSSEphemerisDeltaMatrix ::= SEQUENCE (SIZE(1 .. 128)) OF GANSSEphemerisDeltaEpoch

GANSSEphemerisDeltaEpoch ::= SEQUENCE {
	ganssDeltaEpochHeader		GANSSDeltaEpochHeader				OPTIONAL,
	ganssDeltaElementList		GANSSDeltaElementList,
...
}
-- Each GANSSDeltaEpoch element contains a header and the delta values for a particular time window
-- for all PRN's.

GANSSDeltaEpochHeader ::= SEQUENCE {
	validityPeriod				INTEGER(1..8)					OPTIONAL,
	ephemerisDeltaSizes			GANSSEphemerisDeltaBitSizes		OPTIONAL,
	ephemerisDeltaScales		GANSSEphemerisDeltaScales		OPTIONAL,
...
}
-- In each of the GANSSDeltaEpochs, if the optional element, validityPeriod is not included, the
-- value in GANSSEphemerisExtensionHeader shall be used.  If the optional elements 
-- ephemerisDeltaSizes or ephemerisDeltaScales are not included, then the default ephemeris delta
-- sizes and scales shall be used.  The default sizes and scales are found in the annex in the 
-- table 55.11.

GANSSDeltaElementList ::= SEQUENCE (SIZE(1 .. 32)) OF OCTET STRING(SIZE (1..49))
-- Each octet string element in GANSSDeltaElementList corresponds to one PRN within one epoch

-- Table 55.11 of the annex shows the organization of the delta ephemeris octet string.
-- Decoding of each of the octet strings is accomplished by consulting the ephemerisDeltaSizes
-- table to learn the length and order of each of the parameters in the ephemerisDelta payload.

-- Post decode scaling is accomplished by consulting the ephemerisDeltaScales table to learn the
-- scale factors to apply to the terms in the delta ephemeris.

-- Ephemeris Delta Bit Sizes.

GANSSEphemerisDeltaBitSizes ::= SEQUENCE {

-- This structure defines the order and sizes of the fields in the GANSSDeltaEpoch octet string 
-- seqNum and svID are the first two elements of each GANSS Ephemeris Delta Element Structure
-- seqNum is always 7 bits, and svID is always 6 bits long and are thus not included in
-- the GANSSEphemerisDeltaBitSizes table.  The value of seqNum indicates the GANSSDeltaEpoch number

-- The Ephemeris delta element payload mimics the bitsize table, but also includes the svID and 
-- seqNum as the first two elements (in that order),in each block.

	bitsize-delta-omega			INTEGER(1..32),
	bitsize-delta-deltaN		INTEGER(1..16),
	bitsize-delta-m0			INTEGER(1..32),
	bitsize-delta-omegadot		INTEGER(1..24),
	bitsize-delta-e				INTEGER(1..32),
	bitsize-delta-idot			INTEGER(1..14),
	bitsize-delta-sqrtA			INTEGER(1..32),
	bitsize-delta-i0			INTEGER(1..32),
	bitsize-delta-omega0		INTEGER(1..32),
	bitsize-delta-crs			INTEGER(1..16),
	bitsize-delta-cis			INTEGER(1..16),
	bitsize-delta-cus			INTEGER(1..16),
	bitsize-delta-crc			INTEGER(1..16),
	bitsize-delta-cic			INTEGER(1..16),
	bitsize-delta-cuc			INTEGER(1..16),
	bitsize-delta-tgd1			INTEGER(1..10),
	bitsize-delta-tgd2			INTEGER(1..10),
...
}

GANSSEphemerisDeltaScales ::= SEQUENCE {

	scale-delta-omega			INTEGER(-16..15),
	scale-delta-deltaN			INTEGER(-16..15),
	scale-delta-m0				INTEGER(-16..15),
	scale-delta-omegadot		INTEGER(-16..15),
	scale-delta-e				INTEGER(-16..15),
	scale-delta-idot			INTEGER(-16..15),
	scale-delta-sqrtA			INTEGER(-16..15),
	scale-delta-i0				INTEGER(-16..15),
	scale-delta-omega0			INTEGER(-16..15),
	scale-delta-crs				INTEGER(-16..15),
	scale-delta-cis				INTEGER(-16..15),
	scale-delta-cus				INTEGER(-16..15),
	scale-delta-crc				INTEGER(-16..15),
	scale-delta-cic				INTEGER(-16..15),
	scale-delta-cuc				INTEGER(-16..15),
	scale-delta-tgd1			INTEGER(-16..15),
	scale-delta-tgd2			INTEGER(-16..15),
...
}

-- GANSS Ephemeris Extension Check
GANSSEphemerisExtensionCheck ::= SEQUENCE {
	ganssBeginTime			GANSSEphemerisExtensionTime,
	ganssEndTime			GANSSEphemerisExtensionTime,
	ganssSatEventsInfo		GANSSSatEventsInfo,
...
}

GANSSSatEventsInfo ::= SEQUENCE {
	eventOccured		BIT STRING (SIZE (64)),
	futureEventNoted	BIT STRING (SIZE (64)),
...
}
-- If a bit is clear in the eventOccured field it indicates that no known errors have occured
-- between the current time and the ganssBeginTime nor is a maneuver planned for the next sixty
-- minutes.
-- If a bit is set in the futureEventNoted field it indicates that a maneuver is planned during the
-- time period between current time plus sixty minutes and the ganssEndTime
-- GANSS Additional Universal Time Coordinate Model
GANSSAddUTCModel ::= CHOICE {
	utcModel2			UTCmodelSet2,
	utcModel3			UTCmodelSet3,
	utcModel4			UTCmodelSet4,
	...
}

UTCmodelSet2 ::= SEQUENCE {
	utcA0				INTEGER (-32768..32767),
	utcA1				INTEGER (-4096.. 4095),
	utcA2				INTEGER (-64..63),
	utcDeltaTls			INTEGER (-128.. 127),
	utcTot				INTEGER (0..65535),
	utcWNot				INTEGER (0..8191),
	utcWNlsf			INTEGER (0..255),
	utcDN				BIT STRING (SIZE(4)),
	utcDeltaTlsf		INTEGER (-128..127)
}

UTCmodelSet3 ::= SEQUENCE {
	nA					INTEGER (1..1461),
	tauC				INTEGER (-2147483648..2147483647),
	b1					INTEGER (-1024..1023) 					OPTIONAL,
	b2					INTEGER (-512..511) 					OPTIONAL,
	kp					BIT STRING (SIZE(2)) 					OPTIONAL
}

UTCmodelSet4 ::= SEQUENCE {
	utcA1wnt			INTEGER (-8388608..8388607),
	utcA0wnt			INTEGER (-2147483648..2147483647),
	utcTot				INTEGER (0..255),
	utcWNt				INTEGER (0..255),
	utcDeltaTls			INTEGER (-128..127),
	utcWNlsf			INTEGER (0..255),
	utcDN				INTEGER (-128..127),
	utcDeltaTlsf		INTEGER (-128..127),
	utcStandardID		INTEGER (0..7) 			-- coding according to annex
}

-- GANSS Auxiliary Information
GANSSAuxiliaryInformation ::= CHOICE{
	ganssID1	GANSS-ID1, 	-- This choice may only be present if GANSS ID indicates Modernized GPS
	ganssID3	GANSS-ID3, 	-- This choice may only be present if GANSS ID indicates GLONASS
	...
}

GANSS-ID1 ::= SEQUENCE (SIZE(1..64)) OF GANSS-ID1-element

GANSS-ID1-element ::= SEQUENCE {
	svID				SVID,
	signalsAvailable	GANSSSignals,
	...
}

GANSS-ID3 ::= SEQUENCE (SIZE(1..64)) OF GANSS-ID3-element

GANSS-ID3-element  ::= SEQUENCE {
	svID				SVID,
	signalsAvailable	GANSSSignals,
	channelNumber		INTEGER (-7..13),
	...
}

-- DGANSS Corrections Validity Period:
-- This element may only be included if GANSSDiffCorrections IE is included in 
-- GANSSGenericAssistDataElement element.
-- GANSSDiffCorrectionsValidityPeriod shall contain the same number of elements as the 
-- SeqOfSgnTypeElement included in GANSSDiffCorrections IE
GANSSDiffCorrectionsValidityPeriod ::= SEQUENCE (SIZE (1..3)) OF DGANSSExtensionSgnTypeElement

DGANSSExtensionSgnTypeElement ::= SEQUENCE {
	ganssSignalID		 		GANSSSignalID, -- signal type identity
	dganssExtensionSgnList		SeqOfDGANSSExtensionSgnElement
}

-- SeqOfDGANSSExtensionSgnElement shall contain the same number of elements as the 
-- SeqOfDGANSSSgnElement included in GANSSDiffCorrections IE
SeqOfDGANSSExtensionSgnElement ::= SEQUENCE (SIZE (1..16)) OF DGANSSExtensionSgnElement

DGANSSExtensionSgnElement ::= SEQUENCE {
	svID				SVID, 			-- Satellite identity
	udreGrowthRate		INTEGER(0..7), 	-- coding according to annex
	udreValidityTime	INTEGER(0..7), 	-- coding according to annex
	...
}

--Required Measurement Request Response Time, range is 1 to 128 seconds. 
RequiredResponseTime ::= INTEGER  (1..128)

-- Control header for additional GPS assistance data
Add-GPS-AssistData ::= SEQUENCE {
	add-GPS-controlHeader	Add-GPS-ControlHeader
}

Add-GPS-ControlHeader ::= SEQUENCE {
	gpsEphemerisExtension			GPSEphemerisExtension			OPTIONAL,
	gpsEphemerisExtensionCheck		GPSEphemerisExtensionCheck		OPTIONAL,
	... ,
	dgpsCorrectionsValidityPeriod	DGPSCorrectionsValidityPeriod	OPTIONAL
}

GPSClockModel ::= SEQUENCE {
	af2		INTEGER (-128..127),
	af1		INTEGER (-32768..32767),
	af0		INTEGER (-2097152..2097151),
	tgd		INTEGER (-128..127)
}

--GPS Ephemeris Extension
GPSEphemerisExtension ::= SEQUENCE {
	gpsEphemerisHeader			GPSEphemerisExtensionHeader				OPTIONAL,
	gpsReferenceSet				SeqOfGPSRefOrbit						OPTIONAL,
	gpsephemerisDeltaMatrix		GPSEphemerisDeltaMatrix					OPTIONAL,
...
}

-- The gpsEphemerisHeader and the gpsReferenceSet are mandatory only once in the delivery of the
-- GPS Ephemeris Extension.  The gpsReferenceSet shall include all healthy satellite vehicles at the
-- time of message construction

-- The SMLC is required to deliver the gpsReferenceSet for all healthy satellite vehicles
-- at the time of message construction.

GPSEphemerisExtensionHeader ::= SEQUENCE {
	timeofEstimation			GPSEphemerisExtensionTime,
	validityPeriod				INTEGER(1..8),
-- The validity period, represented in hours is the validity period of each individual ephemeris 
-- delta payload
	ephemerisExtensionDuration	INTEGER(1..512),
-- If the ephemerisExtensionDuration does not match the request duration made by the MS, the MS
-- should regard the provided ephemerisExtensionDuration as the limit of the SMLC ephemeris
-- extension capability at this time.
...
}

GPSEphemerisExtensionTime ::= SEQUENCE {
	gpsWeek				GPSWeek,
	gpsTOW				INTEGER (0..604799),
...
}

SeqOfGPSRefOrbit ::= SEQUENCE (SIZE(1..32)) OF GPSReferenceOrbit
--The number of reference orbits can be read from number of elements in this sequence

GPSReferenceOrbit ::= SEQUENCE {
	svID				SVID,
	gpsOrbitModel		ReferenceNavModel,
	gpsClockModel		GPSClockModel,
...
}

GPSEphemerisDeltaMatrix ::= SEQUENCE (SIZE(1 .. 128)) OF GPSEphemerisDeltaEpoch

GPSEphemerisDeltaEpoch ::= SEQUENCE {
	gpsDeltaEpochHeader		GPSDeltaEpochHeader				OPTIONAL,
	gpsDeltaElementList		GPSDeltaElementList,
...
}

-- Each GPSDeltaEpoch element contains a header and the delta values for a particular time window 
-- for all PRN's.
GPSDeltaEpochHeader ::= SEQUENCE {
	validityPeriod				INTEGER(1..8)				OPTIONAL,
	ephemerisDeltaSizes			GPSEphemerisDeltaBitSizes	OPTIONAL,
	ephemerisDeltaScales		GPSEphemerisDeltaScales	OPTIONAL,
...
}

-- In each of the GPSDeltaEpochs, if the optional element validityPeriod is not included,
-- the value in GPSEphemerisExtensionHeader shall be used.  if the optional elements 
-- ephemerisDeltaSizes or ephemerisDeltaScales are not included, then the default ephemeris delta
-- sizes and scales shall be used.  The default sizes and scales are found in the annex in section
-- A.29.m

GPSDeltaElementList ::= SEQUENCE (SIZE(1 .. 32)) OF OCTET STRING(SIZE (1..47))

-- Each octet string element in GPSDeltaElementList corresponds to one PRN within one epoch

-- Table A.29.m of the annex shows the organization of the delta ephemeris octet string.
-- Decoding of each of the octet strings is accomplished by consulting the ephemerisDeltaSizes
-- table to learn the length and order of each of the parameters in the ephemerisDelta payload

-- Post decode scaling is accomplished by consulting the ephemerisDeltaScales table to learn the.
-- scale factors to apply to the terms in the delta ephemeris

-- Ephemeris Delta Bit Sizes. 

GPSEphemerisDeltaBitSizes ::= SEQUENCE {

-- This structure defines the order and sizes of the fields in the GPSsDeltaEpoch octet string
-- seqNum and svID are the first two elements of each GPS Ephemeris Delta Element Structure
-- seqNum is always 7 bits, and svID is always 5 bits long and are thus not included in
-- the GPSEphemerisDeltaBitSizes table. seqNum indicates the GPSDeltaEpoch number.

-- The Ephemeris delta element payload mimics the bitsize table, but also includes the svID and
-- seqNum as the first two elements (in that order),in each block.

	bitsize-delta-omega			INTEGER(1..32),
	bitsize-delta-deltaN		INTEGER(1..16),
	bitsize-delta-m0			INTEGER(1..32),
	bitsize-delta-omegadot		INTEGER(1..24),
	bitsize-delta-e				INTEGER(1..32),
	bitsize-delta-idot			INTEGER(1..14),
	bitsize-delta-sqrtA			INTEGER(1..32),
	bitsize-delta-i0			INTEGER(1..32),
	bitsize-delta-omega0		INTEGER(1..32),
	bitsize-delta-crs			INTEGER(1..16),
	bitsize-delta-cis			INTEGER(1..16),
	bitsize-delta-cus			INTEGER(1..16),
	bitsize-delta-crc			INTEGER(1..16),
	bitsize-delta-cic			INTEGER(1..16),
	bitsize-delta-cuc			INTEGER(1..16),
	bitsize-delta-tgd			INTEGER(1..10),
...
}

GPSEphemerisDeltaScales ::= SEQUENCE {
	scale-delta-omega			INTEGER(-16..15),
	scale-delta-deltaN			INTEGER(-16..15),
	scale-delta-m0				INTEGER(-16..15),
	scale-delta-omegadot		INTEGER(-16..15),
	scale-delta-e				INTEGER(-16..15),
	scale-delta-idot			INTEGER(-16..15),
	scale-delta-sqrtA			INTEGER(-16..15),
	scale-delta-i0				INTEGER(-16..15),
	scale-delta-omega0			INTEGER(-16..15),
	scale-delta-crs				INTEGER(-16..15),
	scale-delta-cis				INTEGER(-16..15),
	scale-delta-cus				INTEGER(-16..15),
	scale-delta-crc				INTEGER(-16..15),
	scale-delta-cic				INTEGER(-16..15),
	scale-delta-cuc				INTEGER(-16..15),
	scale-delta-tgd				INTEGER(-16..15),
...
}

GPSEphemerisExtensionCheck ::= SEQUENCE {
	gpsBeginTime			GPSEphemerisExtensionTime,
	gpsEndTime				GPSEphemerisExtensionTime,
	gpsSatEventsInfo		GPSSatEventsInfo,
...
}

GPSSatEventsInfo ::= SEQUENCE {
	eventOccured		BIT STRING (SIZE (32)),
	futureEventNoted	BIT STRING (SIZE (32)),
...
}
-- If a bit is clear in the eventOccured field it indicates that no known errors have occured since 
-- the gpsBeginTime nor is a maneuver planned for the next sixty minutes.
-- If a bit is set in the futureEventNoted field it indicates that a maneuver is planned during the
-- time period between current time plus sixty minutes and gpsEndTime

-- DGPS Corrections Validity Period:
-- This element may only be included if DGPSCorrections IE is included in ControlHeader element.
-- DGPSCorrectionsValidityPeriod shall contain the same number of elements as the SeqOfSatElement
-- included in DGPSCorrections IE
DGPSCorrectionsValidityPeriod ::= SEQUENCE (SIZE (1..16)) OF DGPSExtensionSatElement

DGPSExtensionSatElement ::= SEQUENCE {
	satelliteID			SatelliteID,
	udreGrowthRate		INTEGER(0..7), 	-- coding according to annex
	udreValidityTime	INTEGER(0..7), 	-- coding according to annex
	...
}

Rel-7-MsrPosition-Rsp-Extension ::= SEQUENCE {

	velEstimate 	VelocityEstimate OPTIONAL,
 -- Horizontal Velocity
 -- Horizontal with Vertical Velocity
 -- Horizontal Velocity with Uncertainty
 -- Horizontal with Vertical Velocity and Uncertainty
 ganssLocationInfo GANSSLocationInfo OPTIONAL,
 ganssMeasureInfo GANSSMeasureInfo OPTIONAL,
	...
-- Further Release 7 extensions here
}

-- GANSS Location Information contains location estimate, time stamp with uncertainty 
-- and optionally Reference Frame field
GANSSLocationInfo ::= SEQUENCE {
 	referenceFrame 				ReferenceFrame 			OPTIONAL, -- Reference Frame Number
 	ganssTODm 					GANSSTODm 				OPTIONAL, -- GNSS TOD modulo
 	ganssTODFrac 				INTEGER (0 .. 16384) 	OPTIONAL, -- Coding according to Annex
	-- a value of 16384 shall not be encoded by the sender
	-- the receiver shall consider a value of 16384 to be invalid data
	ganssTODUncertainty 		GANSSTODUncertainty 	OPTIONAL, -- Coding according to Annex
 	ganssTimeID 				INTEGER (0 .. 7) 		OPTIONAL, -- Coding according to Annex
	fixType			 			FixType,
 	posData 					PositionData,
 	stationaryIndication 		INTEGER(0 .. 1) 		OPTIONAL, -- '0' if moving or motion not
																  -- known 
	-- Possible shapes carried in posEstimate are
	-- ellipsoid point,
	-- ellipsoid point with uncertainty circle
	-- ellipsoid point with uncertainty ellipse
	-- ellipsoid point with altitude and uncertainty ellipsoid
	posEstimate		 			Ext-GeographicalInformation,
 	...
}

PositionData ::= BIT STRING {
 	e-otd	 	 	 (0),
	gps 	 	 	 (1),
	galileo 	 	 (2),
	sbas 	 	 	 (3),
	modernizedGPS 	 (4),
	qzss 	 	 	 (5),
	glonass 	 	 (6) } (SIZE (3..16))

-- GANSS TOD modulo 1 hour
GANSSTODm ::= INTEGER (0 .. 3599999)

ReferenceFrame ::= SEQUENCE {
 referenceFN INTEGER (0 .. 65535),
	-- Note that applicable range for referenceFN is 0 - 42431
 referenceFNMSB INTEGER (0 .. 63) OPTIONAL -- MSB of Reference Frame Number
}

-- GANSS Measurement Information 
GANSSMeasureInfo ::= SEQUENCE {
	-- Measurement info elements
ganssMsrSetList SeqOfGANSS-MsrSetElement
}
SeqOfGANSS-MsrSetElement ::= SEQUENCE (SIZE(1..3)) OF GANSS-MsrSetElement

-- GANSS measurement information 1-3 times in a message
GANSS-MsrSetElement ::= SEQUENCE {
	referenceFrame 			ReferenceFrame 		OPTIONAL, -- Reference Frame Number
	-- if ganssTODm is included, it is the GNSS specific system time of the GANSS reported
	-- first in ganss-SgnTypeList. If GPS Measurement Information element is not included in
	-- a Measure Position Response component, this field shall be present.
	ganssTODm 				GANSSTODm 			OPTIONAL, -- GANSS TOD modulo 1 hour
	deltaGANSSTOD 			INTEGER (0 .. 127) 	OPTIONAL,
	ganssTODUncertainty 	GANSSTODUncertainty	OPTIONAL, -- Coding according to Annex
	--N_GANSS can be read from number of elements of SeqOfGANSS-MsrElement
	ganss-MsrElementList	SeqOfGANSS-MsrElement 
}

SeqOfGANSS-MsrElement ::= SEQUENCE (SIZE(1..8)) OF GANSS-MsrElement

GANSS-MsrElement ::= SEQUENCE {
	ganssID		INTEGER (0..7) 	OPTIONAL, --Absence means Galileo
	ganss-SgnTypeList 		SeqOfGANSS-SgnTypeElement
}

-- Measurements can be returned up to 8 different signal types
-- N_SGN_TYPE can be read from number of elements of SeqOfGANSS-SgnTypeElement 
-- Reporting of multiple signal types as defined in A.2.2.4g  
SeqOfGANSS-SgnTypeElement ::= SEQUENCE (SIZE(1..8)) OF GANSS-SgnTypeElement

GANSS-SgnTypeElement ::= SEQUENCE {
	ganssSignalID			GANSSSignalID, -- Coding according to Annex
	ganssCodePhaseAmbiguity	INTEGER (0 .. 127)				OPTIONAL,
 	--N_SGN can be read from number of elements of SeqOfGANSS-SgnElement
 	ganss-SgnList SeqOfGANSS-SgnElement,
 	...
}

-- Up to 16 Measurements can be returned per signal type 
SeqOfGANSS-SgnElement ::= SEQUENCE (SIZE(1..16)) OF GANSS-SgnElement


GANSS-SgnElement ::= SEQUENCE {
 	svID 				SVID,
	cNo 				INTEGER (0 .. 63),
	mpathDet 			MpathIndic, 								 -- Coding according to Annex
	carrierQualityInd 	INTEGER (0 .. 3) 			OPTIONAL, 	 -- Coding according to Annex
	codePhase 			INTEGER (0 .. 2097151),
	integerCodePhase 	INTEGER (0 .. 127) 			OPTIONAL,
	codePhaseRMSError 	INTEGER (0..63), 						 -- Coding according to Annex
	doppler 			INTEGER (-32768 .. 32767) 	OPTIONAL,
	adr 				INTEGER (0 .. 33554431) 	OPTIONAL
}

Rel7-AssistanceData-Extension ::= SEQUENCE {
	ganss-AssistData								GANSS-AssistData	OPTIONAL,
	ganssCarrierPhaseMeasurementRequest				NULL				OPTIONAL,
	ganssTODGSMTimeAssociationMeasurementRequest	NULL				OPTIONAL,
	 add-GPS-AssistData								Add-GPS-AssistData	OPTIONAL,
	...
-- Possibly more extensions for Release 7 here
}

-- Rel-7 Positioning Capability parameters here

PosCapabilities ::= SEQUENCE {

-- nonGANSSpositionMethods shall be included if and only if any 
-- of the non-GANSS methods is supported.
	nonGANSSpositionMethods		NonGANSSPositionMethods	OPTIONAL,

-- gANSSpositionMethods shall be included if and only if any of the GANSS methods is supported.
	gANSSPositionMethods		GANSSPositionMethods	OPTIONAL,

-- multipleMeasurementSets shall be present if and only if 'multiple sets' is supported 
-- for any of the positioning methods
	multipleMeasurementSets		MultipleMeasurementSets	OPTIONAL,
	...
}

NonGANSSPositionMethods ::= BIT STRING {
	msAssistedEOTD	 (0),
	msBasedEOTD	 	 (1),
	msAssistedGPS	 (2), -- If this bit is set, gpsAssistance in AssistanceSupported IE
						  -- shall be present
	msBasedGPS	 	 (3), -- If this bit is set, gpsAssistance in AssistanceSupported IE
						  -- shall be present

	standaloneGPS	 (4) } (SIZE (1..16))

GANSSPositionMethods ::= SEQUENCE (SIZE(1..16)) OF GANSSPositionMethod

GANSSPositionMethod ::= SEQUENCE {
	ganssID 						INTEGER (0..7) 				OPTIONAL, --Absence means Galileo
-- gANSSPositioningMethodTypes may be present for PosCapability-Req
-- and shall be present for PosCapability-Rsp
	gANSSPositioningMethodTypes		GANSSPositioningMethodTypes OPTIONAL,
	gANSSSignals					GANSSSignals,
	... ,
-- sbasID shall be present if and only if ganssID indicates SBAS
	sbasID							SBASID						OPTIONAL
}

GANSSPositioningMethodTypes ::= BIT STRING {
	msAssisted	(0),	-- If this bit is set, gANSSAssistanceSet in AssistanceSupported IE 
						-- shall be present.
	msBased	 	(1),	-- If this bit is set, gANSSAssistanceSet in AssistanceSupported IE 
						-- shall be present.
	standalone	(2) } (SIZE (1..8))

-- indicates MS support for particular GANSS signals and frequencies
GANSSSignals ::= BIT STRING {
	signal1 (0),
	signal2 (1),
	signal3 (2),
	signal4 (3),
	signal5 (4),
	signal6 (5),
	signal7 (6),
	signal8 (7) } (SIZE (1..8))

SBASID ::= BIT STRING {
	waas 	 (0),
	egnos 	 (1),
	masas 	 (2),
	gagan 	 (3) } (SIZE (1..8))

-- indicates MS support of multiple measurement sets for MS assisted position methods
MultipleMeasurementSets ::= BIT STRING {
	eotd	 (0),
	gps	 	 (1),
	ganss	 (2) } (SIZE (1..8))

-- indicates MS support of different types of assistance data
AssistanceSupported ::= SEQUENCE {
	gpsAssistance						GPSAssistance						OPTIONAL,
	gANSSAssistanceSet					GANSSAssistanceSet					OPTIONAL,
	... ,
-- gANSSAdditionalAssistanceChoices shall be present if the MS supports other than native models
	gANSSAdditionalAssistanceChoices	GANSSAdditionalAssistanceChoices	OPTIONAL
}

-- GPS assistance data supported
GPSAssistance ::= BIT STRING {
	almanac					(0),
	uTCmodel				(1),
	ionosphericModel		(2),
	navigationmodel			(3),
	dGPScorrections			(4),
	referenceLocation		(5),
	referenceTime			(6),
	acquisitionAssistance	(7),
	realTimeIntegrity		(8),
	ephemerisExtension		(9),
	ephemerisExtensionCheck	(10)} (SIZE (1..16))

-- GANSS assistance data supported
GANSSAssistanceSet ::= SEQUENCE {
	commonGANSSAssistance		CommonGANSSAssistance,
	specificGANSSAssistance		SpecificGANSSAssistance,
	...
}

-- Common GANSS assistance data supported
CommonGANSSAssistance ::= BIT STRING {
	referenceTime			 (0),
	referenceLocation		 (1),
	ionosphericModel		 (3),
	addIonosphericModel		 (4),
	earthOrientationParam	 (5)  } (SIZE (1..8))

SpecificGANSSAssistance ::= SEQUENCE (SIZE(1..16)) OF GANSSAssistanceForOneGANSS

-- assistance data supported for a particular GANSS system
GANSSAssistanceForOneGANSS ::= SEQUENCE {
	ganssID					INTEGER (0..7) 	OPTIONAL, --Absence means Galileo
	gANSSAssistance			GANSSAssistance,
	...
}

-- specific GANSS assistance data supported
GANSSAssistance ::= BIT STRING {
	realTimeIntegrity				(0),
	differentialCorrections			(1),
	almanac							(2),
	referenceMeasurementInformation	(3),
	navigationModel					(4),
	timeModelGNSS-UTC				(5),
	timeModelGNSS-GNSS				(6),
	databitassistance				(7),
	ephemerisExtension				(8),
	ephemerisExtensionCheck			(9),
	addUTCmodel						(10),
	auxiliaryInformation			(11)  } (SIZE (1..16))


GANSSAdditionalAssistanceChoices ::= SEQUENCE (SIZE(1..16)) OF GANSSAdditionalAssistanceChoicesForOneGANSS

GANSSAdditionalAssistanceChoicesForOneGANSS ::= SEQUENCE {
	ganssID							INTEGER (0..7) 	OPTIONAL, --Absence means Galileo
	ganssClockModelChoice			GANSSModelID 	OPTIONAL,
	gannsOrbitModelChoice			GANSSModelID 	OPTIONAL,
	ganssAlmanacModelChoice			GANSSModelID 	OPTIONAL,
	ganssAdditionalUTCModelChoice	GANSSModelID 	OPTIONAL,
	...
}

GANSSModelID ::= BIT STRING {
	model1 (0),
	model2 (1),
	model3 (2),
	model4 (3),
	model5 (4),
	model6 (5),
	model7 (6),
	model8 (7) } (SIZE (1..8))


-- indicates assistance data that may be needed by the MS
-- These elements are coded as defined in TS 49.031 with the exceptions defined in section A.8.2.3
AssistanceNeeded ::= SEQUENCE {
	gpsAssistanceData		GPSAssistanceData		OPTIONAL,
	ganssAssistanceData		GANSSAssistanceData		OPTIONAL,
	...
}

END