ICS Repeater
MODEL:
RPT869 (GSM 900MHz) / RPT889 (GSM 1800MHz) / RPT899 (GSM 1900MHz)
RPT919 (CDMA 450MHz) / RPT939 (CDMA 800MHz) /
RPT999 (CDMA 1900MHz) / RPT659 (WCDMA)
The ICS Repeater (Interference Cancellation System) is a new kind of single-band RF repeater that can automatically detect and cancel the interference signals caused by oscillation of RF feedback between the Donor and Coverage Antennas in real time by adopting DSP (Digital Signal Processing) technology. It can continuously and stably cancel the interference signals and be adapted to any changes in the surrounding RF environment (including fixed and mobile objects).
Like the RF repeater, the ICS Repeater is working as a relay between the BTS and mobiles. It picks up the signal from the BTS via the Donor Antenna, linearly amplifies the signal and then retransmits it via the Coverage Antenna (or the Indoor Signal Distribution System) to the weak/blind coverage area. And the mobile signal is also amplified and retransmitted to the BTS via the opposite direction.
As per operator’s requirement for working frequency, two types of ICS Repeater are available:
- Band-Selective ICS Repeater: to amplify all signals in the whole band (bandwidth is customized);
- Channel-Selective ICS Repeater: to amplify only the signals transmitted in customized channels.
See the overview of Repeater here.
Application Diagram of Outdoor ICS Repeater
Application Diagram of Indoor ICS Repeater
Features
Application
Specifications
Features
- Aluminum-alloy casing has high resistance to dust, water and corroding;
- Real-time cancellation of interference signal (incl. multi-path fading, feedback signal);
- ICS function to prevent self-oscillation, enhance gain and coverage range, and reduce isolation requirement between donor antenna and coverage antenna;
- Highly selective digital channel selector can process 12 channels simultaneously;
- No interference to BTS by adopting linear amplifier with high gain and low noise;
- Adopting filter with highly selectivity and low insertion loss eliminates interference between uplink and downlink;
- RS-232 ports provide links to a notebook for local supervision and to the built-in wireless modem to communicate with the NMS (Network Management System) that can remotely supervise repeater’s working status and download operational parameters to the repeater.
Application
To expand signal coverage or fill signal blind area where signal is weak or unavailable.
- Outdoor: Airports, tourism regions, golf courses, tunnels, factories, mining districts, villages, highways…
- Indoor: Hotels, exhibition centers, basements, shopping malls, offices, parking lots, …
The ICS Repeater is mainly applicable to such case:
- The repeater can find an installation place which can receive pure BTS signal at strong enough level and can meet the requirement of isolation to avoid self-oscillation;
- And the isolation requirement between the donor and coverage antennas is hard to meet by using a RF repeater.
In comparison with standard RFR (RF Repeater), FSR (frequency shift repeater) and FOR (fiber optic repeater), the ICS Repeater has the following benefits and disadvantages:
| Pro | Con |
|---|---|
|
|
Specifications of GSM ICS Repeater
| Band-Selective ICS Repeater |
Channel-Selective ICS Repeater |
||
|---|---|---|---|
| Working Frequency (customizable) | Uplink | 890~915MHz / 1710~1785MHz / 1895~1910MHz | |
| Downlink | 935~960MHz / 1805~1880MHz / 1975~1990MHz | ||
| Working Bandwidth | 2~25 MHz (customizable) | 200 kHz / Channel | |
| Output Power (customizable) | 27~43 dBm (0.5~20 W) | ||
| Gain | ≥ 95dB | ||
| Gain Adjustment Range | 1~31dB @ step of 1dB | ||
| Operating Max. Gain | ≥ Antenna Isolation + 10dB | ||
| No. of Channels | -- | 8 or 12 | |
| Power Amplifier Oscillation Protection | Interference Cancellation System | ||
| Cancellation Feedback Signals - Max. Sizes of Window | ≥ 6μSec | ||
| Interference Cancellation Range | ≥ 25dB | ||
| Frequency Error | ≤ 0.05ppm | ||
| Voltage Standing Wave Ratio (VSWR) | < 1.5 | ||
| Noise Figure | ≤ 6dB | ||
| In-Band Ripple | ≤ 3dB p-p | ||
| Max. Input Level | ≥ -10dBm | ||
| Spurious Emission | ≤ -36dBm | ||
| In-Band Intermodulation Attenuation | ≤ -45dBc/1MHz @ 10W rated power | ||
| System Delay | ≤ 5.0μSec | ||
| I/O Impedance | 50Ω | ||
| RF Connector | N-Type (Female) | ||
| Temperature Range | Operation: -25°C ~ +55°C / Storage: -30°C ~ +60°C | ||
| Relative Humidity Range | ≤ 95% (non condensing) | ||
| Power Supply (customizable) | DC +24V / AC 220V±15%, 50Hz / AC 110V±15%, 50Hz | ||
| Backup Power Supply (optional) | 4 hours | ||
| Casing Level | IP65 | ||
| Dimensions | 610mm X 445mm X 215mm | ||
| Weight | 42kg | ||
| Remote Monitoring/Control via NMS | Supported | ||
Specifications of CDMA ICS Repeater
| Band-Selective ICS Repeater |
Channel-Selective ICS Repeater |
||
|---|---|---|---|
| Working Frequency (customizable) | Uplink | 450~457.5MHz / 824~849MHz / 1880~1890MHz | |
| Downlink | 460~467.5MHz / 869~894MHz / 1960~1970MHz | ||
| Output Power (customizable) | 27~43 dBm (0.5~20 W) | ||
| Gain | ≥ 95dB | ||
| Gain Adjustment Range | 1~31dB @ step of 1dB | ||
| Operating Max. Gain | ≥ Antenna Isolation + 10dB | ||
| No. of Channels | -- | 8 or 12 | |
| Power Amplifier Oscillation Protection | Interference Cancellation System | ||
| Cancellation Feedback Signals - Max. Sizes of Window | ≥ 6μSec | ||
| Interference Cancellation Range | ≥ 25dB | ||
| Frequency Error | ≤ 0.05ppm | ||
| Voltage Standing Wave Ratio (VSWR) | ≤ 1.5 | ||
| Noise Figure | ≤ 6dB | ||
| In-Band Ripple | ≤ 3dB p-p | ||
| Max. Input Level | ≥ -10dBm | ||
| Spurious Emission | ≤ -36dBm | ||
| In-Band Intermodulation Attenuation | ≤ -45dBc/1MHz @ 10W rated power | ||
| System Delay | ≤ 5.0μSec | ||
| I/O Impedance | 50Ω | ||
| RF Connector | N-Type (Female) | ||
| Temperature Range | Operation: -25°C ~ +55°C / Storage: -30°C ~ +60°C | ||
| Relative Humidity Range | ≤ 95% (non condensing) | ||
| Power Supply (customizable) | DC +24V / AC 220V±15%, 50Hz / AC 110V±15%, 50Hz | ||
| Backup Power Supply (optional) | 4 hours | ||
| Casing Level | IP65 | ||
| Dimensions | 610mm X 445mm X 215mm | ||
| Weight | 42kg | ||
| Remote Monitoring/Control via NMS | Supported | ||
Specifications of WCDMA ICS Repeater
| Downlink | Uplink | ||
|---|---|---|---|
| Working Frequency (customizable) | 2110~2170MHz | 1920~1980MHz | |
| Carrier Wave Mode | Channel Selective / Band Selective | ||
| Carrier Quantity | 8 or 12 channels | ||
| Max. Output Power (customizable) | 27/30/33/37/40 dBm (+0dB/-2dB) | 27/30 dBm (+0dB/-2dB) | |
| Frequency Error | ≤ 0.01ppm | ||
| Gain | ≥ 90dB | ||
| Gain Adjustment Range | 1~31dB @ step of 1dB | ||
| Operating Max. Gain | ≥ Antenna Isolation + 10dB | ||
| Power Amplifier Oscillation Protection | Interference Cancellation System | ||
| Cancellation Feedback Signals - Max. Sizes of Window | ≥ 6μSec | ||
| Interference Cancellation Range | ≥ 25dB | ||
| Adjacent Channel Power Ratio (ACPR) | P ≥ 31 dBm | (Offset 5MHz) ≤ 49dBc (Offset 10MHz) ≤ 54dBc |
|
| P < 31 dBm | (Offset 5MHz) ≤ 50dBc (Offset 10MHz) ≤ 55dBc |
||
| Noise Figure | ≤ 4dB | ||
| In-Band Ripple | ≤ 3dB p-p / 3.84MHz | ||
| Spurious Emission and IMD3 | Comply with 3GPP TS 25.106 V6.0.0 | ||
| System Delay | ≤ 5.0μSec | ||
| Voltage Standing Wave Ratio (VSWR) | ≤ 1.4 | ||
| Out-of-Band Gain | 2.7 ≤ f_offset < 3.5MHz | ≤ 60dB | |
| 3.5 ≤ f_offset < 7.5MHz | ≤ 45dB | ||
| 7.5 ≤ f_offset < 12.5MHz | ≤ 45dB | ||
| 12.5 ≤ f_offset | ≤ 30dB | ||
| Peak Code Domain Error (PCDE) | ≤ -35dB | ||
| Error Vector Magnitude (EVM) | ≤ 12.5% | ||
| I/O Impedance | 50Ω | ||
| RF Connector | N-Type (Female) | ||
| Temperature Range | Operation: -25°C ~ +55°C / Storage: -30°C ~ +60°C | ||
| Relative Humidity Range | ≤ 95% (non condensing) | ||
| Power Supply (customizable) | DC +24V / AC 220V±15%, 50Hz / AC 110V±15%, 50Hz | ||
| Backup Power Supply (optional) | 4 hours | ||
| Casing Level | IP65 | ||
| Dimensions | 610mm X 445mm X 215mm | ||
| Weight | 42kg | ||
| Remote Monitoring/Control via NMS | Supported | ||