Product Info

Glossary
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Nokia Proprietary and Confidential Issue 3-0 en
Commissioning
Tasks performed in order to enable the BTS to be connected to the network.
Includes operational tests and configuration of the transmission equipment.
Coverage Area
see Cell.
D-bus
Bus between TRXs and transmission units (D1), and for internal communication
between the units of the MetroSite BTS (D2).
Downlink Diversity
The BTS swaps two transmitters on a single channel to obtain improved overall
sensitivity in a system which is subject to random fading. See Uplink Diversity.
Dynamic Abis
Using the EGPRS dynamic Abis pool (EDAP) to efficiently allocate transmission
resources for the high data rates of EDGE.
Earthing
See Grounding.
Grounding
Protecting the equipment and the users against lightning and surges through the
external connections.
Installation
Tasks performed in order to enable the BTS to be mounted at the site.
Integration
Tasks performed in order to enable the BTS to be functional in the cellular
network. Includes the test calls.
I
2
C-bus
MetroSite BTS’s internal bus which handles the alarm and control signalling
between passive units.
Loop Connection
Transmission solution where the BTSs are interconnected through a loop. For
example, the first and the last BTS are connected to the BSC. See Chain
Connection, Multidrop Connection and Star Connection.