JDS Uniphase CellAdvisor JD780A Series, Руководство пользователя

Страница: 331 / 592

JD780A Series Analyzers
Using CDMA Signal Analyzer
331
Introduction
This CDMA Signal Analyzer can be used to test a CDMA transmitter including cdmaOne and
cdma2000 signals to check the base station
’s compliance with following standards documentation.
 3GPP2 C.S0002 Physical Layer Standard for cdma2000 Spread Spectrum Systems
 3GPP2 C.S0010 Recommended Minimum Performance Standards for cdma2000 Spread
Spectrum Base Station
This instrument automatically makes standard defined measurements using the measurement
methods and limits as defined in the standards. Detailed measurement results allow you to analyze
cdmaOne and cdma2000 system performance.
 cdmaOne uses dual BPSK (Binary Phase-Shifting Key) for the forward link and OQPSK
(Offset Quadrature Phase Shift Keying) for the reverse link.
 cdma2000 uses QPSK (Quadrature Phase Shift Keying) modulation for the forward link and
QPSK modulation with HPSK spreading for the reverse link. Both forward and reverse links
may have several channels, and individual characteristics for each channel. The chip rate
depends on the mode selected.
You may alter the measurement parameters for specialized analysis. Pass/Fail testing with standard
defined or user defined upper and lower limits and the Pass/Fail indictor help you to determine base
station performance easily.
This instrument provides the following measurement tools for CDMA system:
 Spectrum Analysis
 RF Analysis
-
Channel Power
-
Occupied Bandwidth
-
Spectrum Emission Mask (SEM)
-
Adjacent Channel Power Ratio (ACPR)
-
Multi-ACPR
-
Spurious Emissions
 Modulation Analysis
-
Constellation
-
Code Domain Power
-
Codogram
-
Received Code Strength Indicator (RCSI)
-
CDP Table

Auto Measure
 Power Statistics CCDF
 Over The Air (OTA)
-
Channel Scanner
-
PN Scanner
-
Multipath Profile
-
Code Domain Power
-
Route Map