12 Symbol Encoder Baseband Filters IQ Modulator IF
Πομπός τρίτης γενιάς ψηφιακών επικοινωνιών (1/2) Symbol Encoder Baseband Filters I/Q Modulator ← IF LO 3
Πομπός τρίτης γενιάς ψηφιακών επικοινωνιών (2/2) IF Filter Upconverter ← RF LO Amplifier ← Power Control 4
Εξοπλισμός (2/2) Γεννήτρια Σημάτων N 5182 A MXG Αναλυτής EXA X-Series Signal Analyzer N 9010 A 7
Δημιουργία Σήματος Agilent Signal Studio for W-CDMA/HSPA+ Ισχύς: -10. 00 d. Bm 2. Συχνότητα: 1. 96 GHz 1. 10
Κανάλια (1/2) 1. 1 DPCH (Dedicated Physical Channel) 2. 3 DPCH 3. P-CCPCH (Primary Common Control Physical Channel) + SCH (Synchronization Channel) 4. P-CCPCH + SCH + 1 DPCH 5. P-CCPCH + SCH + 3 DPCH 6. Test Model 1 + 16 DPCH 7. Test Model 1 + 32 DPCH 8. Test Model 1 + 64 DPCH 9. Test Model 2 10. Test Model 3 + 16 DPCH 11. Test Model 3 + 32 DPCH 12. Test Model 4 13. Test Model 5 + 2 HS-PDSCH (High-Speed Downlink Shared Channel) 14. Test Model 5 + 4 HS-PDSCH 15. Test Model 5 + 8 HS-PDSCH 11
Κανάλια (2/2) Κανάλια Ελέγχου: 1. 2. 3. 4. P-CCPCH (Primary Common Control Physical Channel) SCH (Synchronization Channel) P-CPICH (Primary Common Pilot Channel) PICH(Page Indicator Channel) DPCH (Dedicated Physical Channel) 1. 2. 3. Symbol Rate: 7. 5/15/30/60/120/240/480/960 Ksps Spread Factor: 4/8/16/32/64/128/256/512 Διαμόρφωση QPSK 12
Test Models (2/3) Test Model 1 1. 2. 3. 4. 5. 6. 7. 8. 9. Occupied BW Spectrum Emission Mask ACLR Spurious Emissions Transmit Intermodulation Base station maximum output power Total power dynamic range (at Pmax) Frequency Error (at Pmax) EVM (at Pmax) Test Model 2 1. 2. Output power dynamics CPICH Power Accuracy 14
Test Models (3/3) Test Model 3 1. Test Model 4 1. 2. 3. Peak Code Domain Error EVM measurement Total Power Dynamic Range Frequency Error Test Model 5 1. EVM for base stations supporting HS-PDSCH transmission using 16 QAM Modulation (at Pmax) 15
Μέτρηση Ισχύος στο Πεδίο του Κώδικα Agilent Signal Studio for W-CDMA/HSPA+ Agilent 89600 VSA 15. 0 18
- Slides: 24