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S:\Hp8960\E1960A GSM Mobile Test Application\A.04 Release\Proguide\Chapters\prog_prog_guide_step2.fm
Step 2: Configure the Base Station Emulator (BSE)
Things That Can Go Wrong
Trying to Set the MCC, MNC, LAC, NCC, or BCC While the
Cell Activated State = ON
Trying to set any of the network configuration parameters while the cell is in the active state will generate the
following error:
GSM operation rejected; Attempting to set <MCC|MNC|LAC|NCC|BCC> while generating a BCH
Background The network configuration parameters are encoded into the messaging broadcast on the BCH.
Changing the network parameter values while the BCH is active would require the BCH to be stopped, and
have the new values encoded, and then the BCH would have to be re-started. This would cause calls to be
dropped or disrupt a MS camped to the cell. Consequently the network configuration parameters cannot be
changed while the cell is active.
Control of the Cell Activated State The active/inactive state of the cell is controlled using the cell
activated state command. This command is only used when the operating mode is set to active cell mode.
Example 3. Command Syntax:
CALL[:CELL[1]]:ACTivated[:STATe]<ON|1|OFF|0>
Example 4. Programming Example:
OUTPUT Test_set;"CALL:ACT ON"
Effects of Activating and Deactivating the Cell
Effects of Deactivating the Cell Among others (refer to the test set’s reference information for a complete listing of
actions), setting the cell activated state to OFF causes the following actions to take place:
• The control program is no longer prevented from setting the following parameters: MCC, MNC, PCS MNC, Use PCS
MNC, BCC, NCC and LAC.
• All signaling operations, uplink demodulation and downlink (BCH & TCH) generation are stopped.
• Any measurements that rely on uplink demodulation are aborted. No special error messages are generated.
Effects of Activating the Cell Among others (refer to the test set’s reference information for a complete listing of
actions), setting the cell activated state to ON causes the following actions to take place:
• The control program is prevented from setting the following parameters: MCC, MNC, PCS MNC, Use PCS MNC, BCC,
NCC and LAC.
• If the cell activated state was previously OFF, the TDMA frame number of the BS emulator starts from zero, and a
BCH is generated.
• If a TCH was present prior to setting cell activated state to OFF, the TCH is not reinstated.
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