BSS Description B10 (3FL10473A-ed 2)

2. BSC Description
Functions
ALCATEL BSS Description 48
BSC Telecommunications functions (2)
Central Trace
Overload Control
SMS - Cell Broadcast
In Call Modification
Multiband MSs
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ALCATEL BSS Description
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Central Trace: An operator at the MSC can request the tracing of a MS along the PLMN, based on its IMSI;
the radio data associated to this trace can be displayed in the OMC-R.
Overload Control: When the BSC detects an overload (e.g. a BSC processor overload), it takes steps to
reduce the overload. For example, by decreasing the number of BTS measurement result messages
handled.
Short Message Service: There are two types of SMS, Point-to-point SMS (sent or received from a specific
MS), SMS-CB (which allows messages to be broadcast to all the MSs of a cell, road information...)
In Call Modification: During the active phase of a call, ICM can be performed to: Change the service of
the call (speech to data), reduce the transmission speed of a transparent data call, change the
Discontinuous Transmission (DTX) downlink mode.
Multiband operation: permit a sectorized BTS Alcatel 9100 to operate in the GSM 900 band in some
sectors and GSM 1800 band in others
All Rights Reserved © 2007, Alcatel-Lucent
3FL10473ADAAWBZZA Edition 02
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