3GPPFDD_TestModel4
Description: Signal source to simulate test model 4
Library: 3GPPFDD, Base Station
Class: SDF3GPPFDD_TestModel4
Derived From: 3GPPFDD_TestModelBase
Parameters
Name |
Description |
Default |
Unit |
Type |
Range |
|---|---|---|---|---|---|
SpecVersion |
version of specifications: Version_03_00, Version_12_00, Version_03_02 |
Version_12_00 |
|
enum |
|
ScrambleCode |
index of scramble code |
0 |
|
int |
[0:512] for downlink; |
ScrambleOffset |
scramble code offset |
0 |
|
int |
[0:15] |
ScrambleType |
scramble code type: normal, right, left |
normal |
|
enum |
|
EnableP_CPICH |
enable primary CPICH?: NO, YES |
YES |
|
enum |
|
PCCPCH_SCH_Gain |
PCCPCH_SCH level setting |
-6 |
dB |
real |
(∞, ∞) |
P_CPICH_Gain |
P_CPICH level setting |
-6 |
dB |
real |
(∞, ∞) |
Pin Outputs
Pin |
Name |
Description |
Signal Type |
|---|---|---|---|
1 |
out |
output data |
complex |
Notes/Equations
- This model simulates test model 4, as defined in 3GPP specification, for EVM measurement.
Test Model 4 Active Channels
Type
Number of Channels
Fraction of Power (%)
Level Setting (dB)
Channelization Code
Timing offset (x256Tchip)
PCCPCH+SCH when Primary CPICH is disabled
1
50 to 1.6
-3 to -18
1
0
PCCPCH+SCH when Primary CPICH is enabled
1
25 to 0.8
-6 to -21
1
0
Primary CPICH
1
25 to 0.8
-6 to -21
0
0
- P-CCPCH The aggregate 15 × 18 = 270 P-CCPCH bits per frame are filled with a PN9 sequence generated using the primitive trinomial. The P-CCPCH channelization code is used as the seed for the PN sequence at the start of each frame. The generator is seeded so that the sequence begins with the 8-bit channelization code starting from the LSB and followed by 1.
- SCH The scrambling code defines the SSC sequence of the secondary SCH. In their active parts, primary and secondary SCHs share equally the power level defined for PCCPCH + SCH.
References
- 3GPP Technical Specification TS 25.141 V3.9.0, Base station conformance testing (FDD), March 2003, Release 1999.
http://www.3gpp.org/ftp/Specs/2002-03/R1999/25_series/25141-390.zip