Base Station Power Control
28
Base Station Power Control
This document covers power regulation by means of the
CHANNEL_ACTIVATION and BS_POWER_CONTROL messages
from the BSC.
The "Base Station Power Control" function is implemented to minimise
the transmit power required by the RBS TRXs (transceivers), while
maintaining the quality of the radio link.
28.1
References
/GSM:05.02/
GSM 05.02 (phase 2) version 4.3.0
/GSM:05.05/
GSM 05.05 (phase 2) version 4.6.0
/GSM:05.08/
GSM 05.08 (phase 2) version 4.6.0
/GSM:08.58/
GSM 08.58 (phase 2) version 4.2.0
Whenever a reference is made to a function described in another chapter,
please refer to the table of contents to find the appropriate chapter.
28.2
Concepts
Nominal Power
The power level defined during
configuration of the RBS TRXs.
28.3
Functions
28.3.1
Base Station Power Control at Channel Activation
By means of the TRANSMISSION POWER CONTROL procedure /
GSM:08.58:4.9/, the BSC defines the TRX (transceiver) transmission
power level.
The RBS supports:
•
Interpretation of the BS Power information element in the
CHANNEL ACTIVATION message from BSC
•
Storage of BS Power
•
Adjustment of BS Power level
Supported Channel Numbers /GSM:08.58:9.3.1/:
•
Bm + ACCHs
•
Lm + ACCHs
•
SDCCH/8 + ACCH
•
SDCCH/4 + ACCH
Supported Channel combinations /GSM:05.02:6.4/:
•
(i) TCH/F + FACCH/F + SACCH/TF
•
(ii) TCH/H(0.1) + FACCH/H(0.1) + SACCH/TH(0.1)
EN/LZT 720 0008
P2A
2001-11-28
279 (485)
© Ericsson Radio Systems AB
— All Rights Reserved —
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Summary of Contents for RBS 2106
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