Product Description

nanoBTS Product Description Software Specification
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5.6 Air Interface
5.6.1 Channel Combinations
The valid channel combinations on a "standalone" nanoBTS or on the Site Master TRX of
a Multi-TRX configuration are:
Timeslot Channel Types Allowed Restrictions
TS0 Full BCCH
Combined BCCH
Combined BCCH with CBCH
TS1 SDCCH/8
SDCCH/8 with CBCH Only if TS0 is Full BCCH
TCH/F, TCH/H Requires 165 BTS with SR3 software
Dynamic TCH/F, TCH/H Requires 165 BTS with SR3 software
Dynamic PDCH/TCH
PDCH
TS2-7 TCH/F, TCH/H TCH/H requires 165 BTS with SR3 software
Dynamic PDCH/TCH
PDCH
The valid channel combinations on a Slave TRX of a Multi-TRX configuration are:
Timeslot Channel Types Allowed Restrictions
TS0 and
TS2-7
TCH/F, TCH/H
Dynamic TCH/F, TCH/H
TCH/H and Dynamic TCH/H requires 165
BTS with SR3 software
TS1 SDCCH/8 Must be without CBCH
TCH/F, TCH/H TCH/H requires 165 BTS with SR3 software
Dynamic TCH/F, TCH/H Requires 165 BTS with SR3 software
The BTS supports different Training Sequence Codes (TSC) on each channel.
5.6.2 Power Control and Handover
The BTS supports MS Power Control algorithm according to [GSM05.08] annex A.
The BTS supports "Non Synchronised" handover.
The BTS does not support "Synchronised" handover of any variant.
The BTS performs Measurement Pre-processing to determine when a handover should
occur and provides an ordered candidate list of Neighbour Cells to handover to (according
to GSM 05.08 Annex A). The algorithm may be configured via "Measurement Pre-Process
defaults" message (see section 5.14.2) in which case it is enabled. Configuration is BSC
specific. Handovers can occur between different bands (e.g. 900MHz and 1800MHz).
The BTS sends RfResourceInds to monitor the background RF received power on unused
timeslots.