Step 2: Configure The Base Station Emulator (Bse); Background - Agilent Technologies 8960 10 Series Reference Manual

Step 2: Configure the Base Station Emulator (BSE)

Background

The test set contains a GSM base station emulator (BSE). In active cell operating mode the BSE, using the
test set's GMSK modulated source, generates a downlink (BSE to MS direction) broadcast channel (BCH)
which represents a cell. The MS can camp to this signal, just as it would camp to a cell on a real network. The
BSE can then page the MS on the BCH and listen to the response of the MS on the uplink (MS to BSE
direction), using the test set's demodulating receiver. Calls can then be set up with the establishment of a
traffic channel (TCH) in both the downlink and uplink directions. Measurements can be made, using the BSE's
measuring receiver, under essentially identical conditions to that which the MS would experience on a real
network.
The BS Emulator can emulate a cell in any one of the following GSM frequency bands:
• PGSM - Primary (band) GSM, also known as GSM900
• EGSM - Extension (band) GSM (includes PGSM)
• DCS - Also known as DCS1800
• PCS - Also known as PCS1900
NOTE The term GSM is used to refer to any combination of, or all of, the supported bands. It is not used
as a shortened term for PGSM.
The task of configuring the BSE consists of configuring the BCH and the TCH. There are numerous
parameters that can be configured for both the BCH and the TCH. It may not be necessary to configure all the
parameters all the time. The test set's default settings should allow a properly functioning MS to successfully
camp on the cell under most circumstances.
In a manufacturing environment it may be desirable to explicitly configure the BCH and TCH parameters to
ensure that the settings have not been corrupted by someone setting a parameter's value through the test set's
front panel.
S:\Hp8960\E1960A GSM Mobile Test Application\A.04 Release\Reference_Manual\Chapters\prog_prog_guide_step2.fm
Step 2: Configure the Base Station Emulator (BSE)
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