Universal Remote Control RNC-200 Instrukcja Użytkownika Pobierz pdf (Strona 3)

RBS3202 Test with CMU300 and RNC/Iub SIM

1CM56_E 3 Rohde & Schwarz

2 Operating Principle

RF Tester

R&S CMU300

Node B

Ericsson RBS3202

NetHawk

RNC/Iub Simulator

Iub

Before the R&S CMU300 can test the RF parameters according to [1], the

Node B must be altered to a test mode with the above-mentioned test

scenarios. In most cases these test modes are not supported by the radio

network controller (RNC) of the operative network. In this particular case

the NH RNC/Iub Simulator assumes this role. The BTS, being isolated

from the network, is activated by the NH RNC/Iub Simulator via the Iub

interface. The BTS is then tested as follows:

Transmission parameters:

• The NH RNC/Iub Simulator activates an appropriate test model on the

downlink (DL)

• The R&S CMU300 measures the transmission parameters (RF power,

modulation, spectrum, code domain measurements)

Reception parameters:

• The NH RNC/Iub Simulator configures the BTS receiver to receive a

RMC

• The BTS provides the TTI trigger signal

• The CMU300 transmits the requested PN modulated RMC; the start of

transmission is determined by the TTI signal

• The BER is evaluated (transport level) in the NH RNC/Iub Simulator

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Universal Remote Control RNC-200 Instrukcja Użytkownika Strona 3