3GPPFDD RF PCDE

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3GPPFDD_RF_PCDE

Description: 3GPP peak code domain error measurements
Library: 3GPPFDD, Measurement
Class: TSDF3GPPFDD_RF_PCDE

Name	Description	Default	Unit	Type	Range
SpecVersion	version of specifications: Version_03_00, Version_12_00, Version_03_02	Version_12_00		enum
RLoad	input resistance	DefaultROut	Ohm	real	(0, ∞)
RTemp	temperature of resistor, in celsius	DefaultRTemp		real	[-273.15, ∞)
ExcessBW	excess bandwidth of raised cosine filters	0.22		real	(0.0:1.0)
FilterLength	length of raised cosine filters in number of symbols	16		int	[1:inf]
SamplesPerChip	samples per chip	8		int	[1:256]
LinkDir	link direction: Downlink, Uplink	Uplink		enum
ScrambleCode	index of scramble code	0		int	[0:511] for downlink; [0:16777215] for uplink
ULScrambleType	uplink scramble code type: LONG, SHORT	LONG		enum
ScrambleOffset	scramble offset in downlink channels	0		int	[0:15]
DLScrambleType	downlink scramble code type: Normal, RightAlternate, LeftAlternate	Normal		enum
SpreadCode	index of spread code	0		int	[0:255] for uplink DPCCH; [0:SF-1] for downlink; SF is set by SlotFormat
SlotFormat	slot format	0		int	[0:5] for uplink DPCCH; [0:16 ] for downlink DPCH
StartSlot	number of slot to be ignored	0		int	[0, ∞)
SCH	switch for SCH: OFF, ON	ON		enum
CPICH	switch for CPICH: OFF, ON	OFF		enum
DUT_DelayBound	Search length	.00001 sec	sec	real	(0:(400.0/3840000))
Correct_IQ_Offset	switch for IQ offset correction: NO, YES	YES		enum
CodeLayer	the code layer to calculate the peak code error	8		int	[2:9]

Pin	Name	Description	Signal Type
1	RFin	input RF signal	timed
2	RefIn	reference signal for EVM	complex

This subnetwork model is used to measure code domain error for a 3GPP FDD transmitter.
The schematic for this subnetwork is shown in the following figure.

3GPPFDD_RF_Uplink_Receiver Schematic
The code domain error is measured by comparing the reference signals with the test signals. The difference between the test and reference signals is projected on the code domain to determine the code domain error distribution. The peak error is identified on data display sheet using equation expressions.
A root-raised cosine filter is placed before each test and reference signal.
Refer to 3GPPFDD_CodeDomainErrror_NonSyn for more information.
Use of this model is demonstrated in base station and user equipment transmitter examples: File > Example Project > WCDMA3G > WCDMA3G_BS_Tx_prj > BS_Tx_Pk_Code_Error.dsn and WCDMA3G_UE_Tx_prj > UE_Tx_Pk_Code_Error.dsn. Simulation results are provided in Data Display windows for these designs.