SIEMENS BSS

1. A30808-X3247-L14-2-7618 65
Information
Base Station System
Technical Description (TED:BSS)
BS-240/241
exclude time slots or logical channels from applying the transmission diversity time
delay.
4.4 FCC Issues (for US Market only)
In this chapter you find the maximum output power at the antenna connector of the
BTS.These values are only relevant for the US market.
Revised FCC Certification for ECU 850
For ECUs with 869.2 and 893.8 MHz frequencies, in order to fulfil the FCC requirements
in the USA, the maximum transmitting power of the corner frequencies of the GSM 850
band (channel numbers 128 and 251, i.e. 869.2 MHz and 893.8 MHz, respectively) is
decreased for all carrier units available for the U.S. market. This feature is realized per
software.
The BTS evaluates the mobile country code (MCC) provided by the BSC via the attribute
"cellGlobalIdentity". If the MCC indicates “USA“, the BTS reduces the output power of
the corner frequencies dependent on the hardware type of the carrier unit. The following
table represents the maximum RF power output values for GMSK and 8PSK modula-
tion.
Revised FCC Certification for ECU 1900
For ECUs with 1930.2 and 1989.8 MHz frequencies, in order to fulfil the FCC require-
ments in the USA, the maximum transmitting power of the corner frequencies of the
GSM 1900 band (channel numbers 512 and 810, i.e. 1930.2 MHz and 1989.8 MHz,
respectively) is decreased for all carrier units available for the U.S. market. This feature
is realized per software.
The BTS evaluates the mobile country code (MCC) provided by the BSC via the attribute
"cellGlobalIdentity". If the MCC indicates “USA“, the BTS reduces the output power of
the corner frequencies dependent on the hardware type of the carrier unit. The following
table represents the maximum RF power output values for GMSK and 8PSK modula-
tion.
CU Type Carrier
Frequency
[MHz]
Channel
No.
Maximum RF
Power Output
GMSK
Maximum RF
Power Output
8PSK
ECU850V3 869.2 128 42.3 dBm = 17.0 W 45.6 dBm = 36.3 W
ECU850V3 893.8 251 44.4 dBm = 27.5 W 46.3 dBm = 42.7 W
ECU850HPV2 869.2 128 42.2 dBm = 16.6 W 45.2 dBm = 33.1 W
ECU850HPV2 893.8 251 44.3 dBm = 26.9 W 46.9 dBm = 49.0 W
ECU850V2 869.2 128 40.7 dBm = 11.7 W 43.4 dBm = 21.9 W
ECU850V2 893.8 251 44.4 dBm = 27.5 W 47.2 dBm = 52.5 W
Tab. 4.6 Maximum RF Power Output Values