Agilent Technologies E6701A Guía de usuario descargar pdf (Pagina 175)

Agilent PXT Wireless Communications Test Set

User’s Guide

165

Testing Two Cells Using One PXT

The E6621A supports the ability to emulate two LTE cells at the same time when you have option BB1

installed. These are referred to as Cell A and Cell B within the instrument. Cell A and Cell B are completely

independent full cells. Although Cell B is the receiver of the handover in the test described below, its

functionality is equal to that of Cell A and is capable of performing the handover back to Cell A.

Configuration Requirements and Limitations

There are a couple of restrictions to be noted when the E6621A is emulating two cells.

• The cells must occupy the same bandwidth and frequency.

• Option E6621A-BB1: Enhanced Baseband Processing is required.

Security context and IP connectivity is maintained following handovers between the two cells.

Setup

Cell Selection

Before attempting to change any scenario or cell parameter, it is necessary to first select the cell which

you wish to modify. Using the front-panel, press BSE > Config > Cell Setup > Cell Selection.

This setting also determines which cell is sending all custom or other user

initiated message.

Scenarios

Configuring the E6621A for two cells involves using two scenario files. These files can be the same

physical file if it supports all functionality required for both cells.

To load a scenario on Cell A:

• Select the A-Cell after pressing BSE > Config > Cell Setup > Cell Selection.

• Press Mode Setup > Call Scenario. Select a scenario file and load it into the setup.

Note that the “A-Cell Scenario File Name” window, now displays the scenario loaded, as shown below.

Figure 5 – 1: A-Cell Scenario File Loaded

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Agilent Technologies E6701A Guía de usuario Pagina 175