Agilent Technologies ESG Specifikace stáhnout pdf (Strana 96)

2-80 Fully Coded 3GPP W-CDMA Personality User’s and Programming Guide

Using Functions ESG Family Signal Generators

3GPP W-CDMA Base Station Performance Testing Option 200

ESG Physical Layer and Transport Layer Configuration

The physical layer and transport layer are configured separately. Physical layer

configurations change as required by each individual performance test. The specified

channel types and power levels are modified to provide the required stimulus for

performing the individual performance specification tests.

The ESG provides a single-softkey solution for configuring factory-defined transport layer

channelization. This predefined reference measurement channel is used as the transport

layer configuration throughout the specification performance tests. For specific

information regarding transport layer channelization based on this factory-defined setting,

see the following section, “Understanding the Reference Measurement Channel” on

page 4-18.

Performance Test Preparation

Prior to initiating the performance tests, ensure that:

• the base station’s transmitter port(s) are terminated (to avoid the RF leakage power),

• the base station’s TPC function is disabled, and

• the appropriate external attenuators are being used (for higher accuracy and less

mismatch losses).

NOTE All ESG signal parameters are specified at the front panel RF OUTPUT

connector. Losses due to cabling and signal combining must be considered

when performing the tests.

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Agilent Technologies ESG Specifikace Strana 96