CSFT Base Station Repeater The Cell-enhancer with an EDGE Avitec’s Frequency Translating repeater provides as much coverage as a macro base station does and this to a fraction of the cost! In addition, Avitec’s cell-enhancers are truly EDGE compatible with a very low EVM value. This combination of both superior linearity and high output power ensures elevated data throughput and great signal quality. Due to the increased isolation requirement in EDGE environments, the Frequency Translating technology plays an even larger role as a cost-effective alternative to both base stations and conventional repeaters. All of Avitec’s repeaters are monitored by an advanced and user-friendly supervision system, leading to less outage time and thereby to greater revenue
Main Benefits Through a New Generation of GSM repeaters you will be able to cover larger areas through: • Macro Base Station Output power (20W) is achieved with Avitec´s repeater • Reduced cost of site deployment by employing the Frequency Translating concept • Quick & easy site acquisition since there is no need for line of sight between base station and repeater
EDGE the path to Mobile Internet The merge between Internet and mobility enables you to get more revenue from your installed base where Avitec can provide: • GSM repeater with EDGE capabilities with an output power of +40 dBm • GSM/EDGE repeater that meet the higher demands of interference and noise • Large coverage and effective isolation at a minimised cost
Effective Rollout and management of network elements An efficient rollout and a fully functional operations & maintenance form the basis for cost-effective planning of network extensions: • Central management solution with advanced Remote Control and Supervision tools • Short learning curve through fast repeater set-up and user-friendly commis sioning tool • Reporting tools enabling optimised planning of network extension
CSFT922
Channel Selective Frequency Translating GSM900 Repeater equipped with 2 channels
CSFT1822
Channel Selective Frequency Translating GSM1800 Repeater equipped with 2 channels
CSFT1922
Channel Selective Frequency Translating GSM1900 Repeater equipped with 2 channels
CSFT91822 Channel Selective Band Shifting GSM 900 to 1800 Repeater equipped with 2 channels CSFT18922 Channel Selective Band Shifting GSM1800 to 900 Repeater equipped with 2 channels CSFT922-R Channel Selective Frequency Translating GSM-R Repeater equipped with 2 channels
GSM & EDGE
Cover large areas at a minimised cost
CSFT Band Shifting Technology Operators with licenses within both GSM 900 and 1800 bands have through the Avitec’s Band Shifting Repeaters the possibility to use link frequencies on the GSM1800 band, while providing coverage on the GSM900 band. Such a solutions eliminates the isolation requirement altogether, resulting in shorter masts. Installation as well as site acquisition is simplified. In other words, Capital Expenditures (CAPEX) are significantly reduced.
Frequency Translating A Frequency Translating EDGE Repeater provides much larger coverage than a conventional repeater does. This is due to the higher output power that is realized through decreasing the isolation requirements. As a result, a fewer number of units need to be installed and considerable cost-savings are achieved. Even omni-antennas can be used at the remote site. Frequency translation technology allows the use of an omni directional antenna at the repeater site. By shifting the frequency, the isolation requirements are reduced and lower masts can therefore be used. This also enables high output powers, in other words, large areas can be covered at a minimised cost. F9
F1
F5
GSM & EDGE
BTS Site
Link Antenna
FR Link Path
F5
Donor Unit
Repeater Site F1
Link Antenna Remote Unit
Server Antenna Link Antenna Directional Coupler
BTS
R Donor Unit
SD DD
IR
ER
1. The donor unit is installed next to the base station where the signal is coupled off via a directional coupler. 2. Following frequency translation, the signals are transmitted on a link antenna and received at the remote site where signals are converted back to the original frequencies. 3. Finally, the signals are amplified in the remote unit and then transmitted on a server antenna.
Link Antenna
Server Antenna
R Remote Unit
The donor unit is available in two types: The Single Donor (SD) unit has one input connector. The input signal from the BTS is split up within the repeater unit. In the opposite direction – in the uplink – the signals are combined within the repeater before being sent to the BTS. The Double Donor (DD) unit has dual inputs. This can be used in combination with a BTS that uses air combining, and hence has a separate antenna for each TRU. A double donor unit can alternatively handle two signals from two separate BTS. The remote unit is available in two types: In an Internal combining Remote (IR) unit output from the power amplifiers in the downlink is combined and filtered before being passed on to the server antenna. In the uplink the signal is separated within the remote unit. An External combining Remote (ER) unit has two server antenna ports and the signal is combined in the air. Since the ER model needs no combiner the output signal and gain is 3dB higher than in the IR model.
CSFT Electrical Specification 900 MHz
900 MHz
900 MHz
E-GSM900
P-GSM900
R-GSM
Uplink UL
880 - 915
890 - 915
Downlink DL
925 - 960
935 - 960
Number of channels Channel programming Selectivity, donor unit (SD and DD)
1900 MHz
876 - 880
1710 - 1785
1850 - 1910
921 - 925
1805 - 1880
1930 - 1990
2 In 200 kHz Channel spacing > 60 dB at 400 kHz > 65 dB at 600 kHz > 60 dB at 400 kHz > 70 dB at 600 kHz < 2 dB < - 109 dBm at S/N 9 dB
Selectivity, remote unit (SD and DD) Ripple in passband Sensitivity
Noise Figure
1800 MHz
Donor Unit (SD) and (DD)
Remote Unit (IR) and (ER)
DL
N/A
2.5 dB typical, <3 dB at max gain
UL
2.5 dB typical, <3 dB at max gain
2.5 dB typical, <3 dB at max gain
Donor Unit (SD) and (DD)
Remote Unit (IR) and (ER)
Maximum input level, no damage DL
+ 23 dBm
+10 dBm
UL
+ 10 dBm
+ 10 dBm
Propagation delay (per unit)
5.8 µs typical
Output power/carrier Donor Unit (SD)
GSM/GMSK
EDGE/8-PSK average power
DL
+37 dBm
+34 dBm
UL
-10 dBm
-13 dB
GSM/GMSK
EDGE/8-PSK average power
DL
+37 dBm
+34 dBm
UL
-7 dBm
-10 dB
Donor Unit (DD)
Remote Unit (IR)
GSM/GMSK
EDGE/8-PSK average power
DL
+40 dBm
+37 dBm
UL
+37 dBm
+34 dB
Remote Unit (ER)
GSM/GMSK
EDGE/8-PSK average power
DL
+43 dBm
+40 dBm
UL
+37 dBm
+34 dB
Gain Donor Unit (SD) Donor Unit (DD) Remote Unit (IR) DL/UL Remote Unit (ER) DL/UL Gain Flatness (200 kHz BW) Gain Flatness (operational bandwidth) Input to Link Channel Frequency Error
max 42 dB, adjustable, in 1 dB steps max 45 dB, adjustable, in 1 dB steps 75 - 105 dB, adjustable, in 1 dB steps 78 - 108 dB, adjustable, in 1 dB steps ± 1 dB ± 1.5 dB, at constant temperature <1 x 10-9
GSM & EDGE
Frequency range
CSFT
© 2005 Avitec AB Modulation Accuracy Donor Unit (SD) and (DD)
GSM/GMSK
EDGE/8-PSK
DL
< 2.5º RMS and < 10° peak at +37 dBm
< 3.5% EVM RMS at +34 dBm average power
UL
< 2.5º RMS and < 10° peak at -10 dBm
< 3.5% EVM RMS at -13 dBm average power
Remote Unit (IR)
GSM/GMSK < 2.5° RMS and < 10° peak at +40 dBm
< 4% EVM RMS at +37 dBm average power
UL
< 2.5° RMS and < 10° peak at +37 dBm
< 3.5% EVM RMS at +34 dBm average power
Remote Unit (ER)
GSM/GMSK
EDGE/8-PSK
DL
< 2.5° RMS and < 10° peak at +43 dBm
< 4% EVM RMS at +40 dBm average power
UL
< 2.5° RMS and < 10° peak at +37 dBm
< 3.5° EVM RMS at +34 dBm average power
Intermodulation Donor Unit (SD) and (DD)
GSM & EDGE
EDGE/8-PSK
DL
< -36/-30* dBm (two carriers at +37 dBm DL,600 kHz spacing) < -70 dBm (two carriers at -10 dBm UL, 600 kHz spacing)
Remote Unit (IR)
< -36/-30* dBm (two carriers at +40 dBm DL, 600 kHz spacing) < -36/-30* dBm (two carriers at +37dBm UL, 600 kHz spacing)
Remote Unit (ER)
< -36/-30* dBm (two carriers at +43 dBm DL, 600 kHz spacing) < -36/-30* dBm (two carriers at +37 dBm UL, 600 kHz spacing)
* The value is -36 dBm for 900MHz and -30 dBm for 1800 and 1900 MHz Spurious emissions
< - 36 dBm for 9 kHz - 1 GHz < - 30 dBm for 1 GHz - 13 GHz System impedance 50 Ω Antenna connectors DIN 7/16 Female Base Station connector (Donor unit only) N-type Electrical ratings 110/230 V AC, 50/60 Hz (alt. - 48 VDC) Power Consumption Frequency
Donor Unit
Remote Unit
900 MHz
110 W
200 W
1800 & 1900 MHz
150 W
240 W
CSFT91822
150 W
200 W
CSFT18922
110 W
220 W
Mechanical Dimensions Enclosure Weight Environmental EMC Operating Temperature Storage Humidity MTBF Complies with
540 x 350 x 150 mm (per unit) Aluminium (IP 65) 22 kg (per unit)
See compliance below - 25 to + 55 °C - 30 to + 70 °C ETSI EN 300 019-2-4 (see compliance below) > 100 000 hrs R & TTE Directive including: ETS EN 301 502 (ETS EN 300 609-4/GSM 11.26) ETS EN 301 498-8 EN 60 950
All data is subject to change without prior notice.
AVITEC AB, Address: Box 20116, S-161 02 BROMMA, SWEDEN Phone:+46-8-475 47 00 Fax:+46-8-475 47 99 E-mail:
[email protected]
