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5G+4G Digital Optical Fiber Remote System
FCST
5G+4G Digital Optical Fiber Remote System
Product Overview
The system is a cost-effective and high-power cover- age supplementary solution. The system uses a combi- nation of "AU+RU" two-level unit architecture and is compatible with 4G networks.
Compared with the traditional 4G digital optical fiber remote system, the advantage is that it can provide more than 100M radio frequency bandwidth, and at the same time realize the MIMO scheme in both uplink and downlink, more advanced digital compression technology, lower system delay technology, more reliable synchronization technology and large Bandwidth DPD technology, compared with 4G digital optical fiber repeaters, the overall product has significantly improved technical and business capabilities.
Network Architecture
Product Specifications
System functional specifications | |
Function | |
Frequency | Support China Telecom and China Unicom 5G/4G frequency band · 2.1GHz：2110 - 2170/1920 - 1980（4T4R） · 1.8GHz：1830 - 1880/1735 - 1785（2T2R） |
System Structure | Access Unit + Remote Unit |
Number of channels | Support up/down 6 channels （4G is 2 channels，5G is 4 channels） |
Networking capability | Support fiber connection and networking between AU and RU Support chain networking (level 8), star networking (8 ports), hybrid networking Support net- work topology diagram function, and support node query function |
Amplifier protection | Detect the status of the power amplifier, avoid the power amplifier from burning out when abnormal |
DPD | Support DPD switch and peak suppression switch |
Time delay | Support delay automatic and manual adjustment function, delay adjustment range ≥ 50 mi- croseconds, delay adjustment accuracy ≤ 2 microseconds |
Standing wave detection | Support |
Power detection | Support |
AGC | Support |
Energy-saving switch | Includes saving mode reduces power consumption during idle traffic |
Cell division and expansion | Support for cell splitting and expansion by adding AU cascade |
Compatible design | Support built-in antenna, and have an external antenna interface |
Management | Supports centralized management through wired and wireless network access to OMC sys- tem Support management through local OMT software |
Reliability | MTBF（Mean time between system failures）：≥100,000h MTTR（Mean time to repair）：≤0.5h |
System functional specifications | ||
RF specifications | ||
Equipment category | Access Unit | Remote Unit |
5G Frequency | UL：1920 - 1980MHz / DL：2110 - 2170MHz | |
5G Bandwidth | 60MHz | |
5G Number of channels | 4T4R | |
4G Frequency | UL：1735 - 1785MHz / DL：1830 - 1880MHz | |
4G Bandwidth | 50MHz | |
4G Number of channels | 2T2R | |
Transmit power | -10dBm（±2dB） | 40dBm（±2dB） |
ALC | ±2dB | |
Gain | 50dB（±2dB）；Adjustment range≥30dB；Adjustment step≤1dB | |
Transmission delay | ≤8μs | |
EVM | DPD≤5%（QPSK/16QAM/64QAM/256QAM ） | |
Noise Figure | ≤5dB | - |
Frequency error | ≤±0.01ppm | |
Voltage standing wave ratio | ≤1.5 | |
In-band fluctuation | ≤3dB | |
Optical transmission specifications | ||
Optical path dynamic range | ≥15dB | |
Optical output power | ≥-9dBm | |
Optical transmission distance | 20KM | |
System functional specifications | ||
Physical specifications | ||
Equipment category | Access Unit | Remote Unit |
Environment | temperature：-5℃～+45℃ humidity ：≤80% | temperature：-40℃～+55℃ humidity：≤95% |
Protection level | IP30 | IP65 |
Equipment weight | ≤20Kg | |
power consumption | ≤65 | ≤400 |
Equipment volume | 1U | ≤20L |
Installation method | Support standard 19-inch cabinet installation and wall installation | Support wall and pole installation |
Equipment size | 440×261×43.6mm | 479×310×115mm |
Interface specifications | ||
Equipment category | Access Unit | Remote Unit |
Device interface description |
RF interface：N-female ×6 Optical interface：10G SFP+ ×8 Management：1G RJ-45 ×2（OMC+OMT） USB：TYPE-C ×1 SIM Card ×1 MOD ANT ×1 |
RF interface：N-female ×4 Optical interface：10G SFP+ ×2 Management：1G RJ-45 ×1（OMT） |
Product Overview
The system is a cost-effective and high-power cover- age supplementary solution. The system uses a combi- nation of "AU+RU" two-level unit architecture and is compatible with 4G networks.
Compared with the traditional 4G digital optical fiber remote system, the advantage is that it can provide more than 100M radio frequency bandwidth, and at the same time realize the MIMO scheme in both uplink and downlink, more advanced digital compression technology, lower system delay technology, more reliable synchronization technology and large Bandwidth DPD technology, compared with 4G digital optical fiber repeaters, the overall product has significantly improved technical and business capabilities.
Network Architecture
Product Specifications
System functional specifications | |
Function | |
Frequency | Support China Telecom and China Unicom 5G/4G frequency band · 2.1GHz：2110 - 2170/1920 - 1980（4T4R） · 1.8GHz：1830 - 1880/1735 - 1785（2T2R） |
System Structure | Access Unit + Remote Unit |
Number of channels | Support up/down 6 channels （4G is 2 channels，5G is 4 channels） |
Networking capability | Support fiber connection and networking between AU and RU Support chain networking (level 8), star networking (8 ports), hybrid networking Support net- work topology diagram function, and support node query function |
Amplifier protection | Detect the status of the power amplifier, avoid the power amplifier from burning out when abnormal |
DPD | Support DPD switch and peak suppression switch |
Time delay | Support delay automatic and manual adjustment function, delay adjustment range ≥ 50 mi- croseconds, delay adjustment accuracy ≤ 2 microseconds |
Standing wave detection | Support |
Power detection | Support |
AGC | Support |
Energy-saving switch | Includes saving mode reduces power consumption during idle traffic |
Cell division and expansion | Support for cell splitting and expansion by adding AU cascade |
Compatible design | Support built-in antenna, and have an external antenna interface |
Management | Supports centralized management through wired and wireless network access to OMC sys- tem Support management through local OMT software |
Reliability | MTBF（Mean time between system failures）：≥100,000h MTTR（Mean time to repair）：≤0.5h |
System functional specifications | ||
RF specifications | ||
Equipment category | Access Unit | Remote Unit |
5G Frequency | UL：1920 - 1980MHz / DL：2110 - 2170MHz | |
5G Bandwidth | 60MHz | |
5G Number of channels | 4T4R | |
4G Frequency | UL：1735 - 1785MHz / DL：1830 - 1880MHz | |
4G Bandwidth | 50MHz | |
4G Number of channels | 2T2R | |
Transmit power | -10dBm（±2dB） | 40dBm（±2dB） |
ALC | ±2dB | |
Gain | 50dB（±2dB）；Adjustment range≥30dB；Adjustment step≤1dB | |
Transmission delay | ≤8μs | |
EVM | DPD≤5%（QPSK/16QAM/64QAM/256QAM ） | |
Noise Figure | ≤5dB | - |
Frequency error | ≤±0.01ppm | |
Voltage standing wave ratio | ≤1.5 | |
In-band fluctuation | ≤3dB | |
Optical transmission specifications | ||
Optical path dynamic range | ≥15dB | |
Optical output power | ≥-9dBm | |
Optical transmission distance | 20KM | |
System functional specifications | ||
Physical specifications | ||
Equipment category | Access Unit | Remote Unit |
Environment | temperature：-5℃～+45℃ humidity ：≤80% | temperature：-40℃～+55℃ humidity：≤95% |
Protection level | IP30 | IP65 |
Equipment weight | ≤20Kg | |
power consumption | ≤65 | ≤400 |
Equipment volume | 1U | ≤20L |
Installation method | Support standard 19-inch cabinet installation and wall installation | Support wall and pole installation |
Equipment size | 440×261×43.6mm | 479×310×115mm |
Interface specifications | ||
Equipment category | Access Unit | Remote Unit |
Device interface description |
RF interface：N-female ×6 Optical interface：10G SFP+ ×8 Management：1G RJ-45 ×2（OMC+OMT） USB：TYPE-C ×1 SIM Card ×1 MOD ANT ×1 |
RF interface：N-female ×4 Optical interface：10G SFP+ ×2 Management：1G RJ-45 ×1（OMT） |
