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2201R Mobile Tester User Guide

Chapter 3 Performing manual tests and measurements in GSM mode

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Performing EDGE (EGPRS) measurements

Introduction

EDGE is an extension of the GSM and GPRS protocols, enabling packet-oriented data transmission between the

network (and, for example, the Internet) and the mobile phone, at advanced data rates. In addition to a different

protocol, it can also use a more complex and efficient modulation format (8-PSK), and combine several time slots for

one user to increase the data rate.

EDGE measurements with the 2201R Mobile Tester require both the 2231 GSM Option and the 2233 EDGE Option.

The 2232 GPRS Option is not required.

The 2201R offers RF power and modulation measurements with 8-PSK modulation, and two types of receiver

measurements (BLER-USF and BLER-BCS measurements). All the measurements can be performed on a single time

slot per TDMA frame.

Setting up the measurements

Any transmitter and receiver measurements in EDGE mode require that the mobile device under test is registered on

a simulated network (that is, simulated by the 2201R), being ready to transmit or receive data blocks. This can be

achieved as follows:

1. Insert a Test SIM in the mobile phone and connect the GSM/EDGE-enabled phone to the 2201R as depicted in

’Connecting the device under test’ on page32.

2. From the start menu, select GSM

The GSM Tests menu appears.

3. Select a base channel (BCCH) and a traffic channel (TCH) in the frequency band of interest (see Table 7 on

page 42).

4. Select an RF output power in the 2201R that is sufficiently high to allow the mobile phone to find the carrier,

which is typically well above –100 dBm.

5. Ensure that the coupling is selected properly. Refer to ’Testing multiband phones’ on page52 for more

information.

6. Push the EDGE soft key.

The EDGE Tests menu appears.

Note

The Downlink Slot and Uplink Slot input fields in the EDGE Tests menu have no function and should be

ignored.

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