Micro-chamber internal distribution system capable of realizing remote power supply

Abstract

The utility model relates to the technical field of wireless communication, and discloses a micro-indoor distribution system capable of supplying power remotely, which comprises a receiving antenna, a near-end unit, a distribution unit, a far-end unit and a covering antenna feeder which are sequentially connected through coaxial cables, the near-end unit is internally provided with an amplification module, a control module, a synchronization module, an AC-DC power supply module and a feeder, the distribution unit is composed of three power division couplers and supports four far-end units, and the far-end units are internally provided with amplification modules, control modules, synchronization modules and electricity taking devices. The receiving antenna introduces a radio frequency signal, the near-end unit amplifies the signal and feeds direct current through the feeder, after the distribution unit is shunted, the far-end unit separates the radio frequency signal and the direct current through the power taking device, power is supplied, the signal is secondarily amplified at the same time, and finally wireless coverage is achieved through the coverage antenna feeder.

Description

Technical Field

[0001] This utility model relates to the field of mobile communication technology, and in particular to a micro indoor distribution system that can be remotely powered. Background Technology

[0002] Micro indoor distribution systems refer to systems that provide wireless coverage in indoor or limited outdoor environments through distributed antenna systems or micro base stations. They are primarily used to improve the coverage and capacity of wireless networks in indoor or densely populated areas. These locations may include large commercial buildings, residential buildings, hospitals, schools, subway stations, airports, etc. Micro indoor distribution systems can provide more stable and high-quality wireless connections while reducing wireless network interference. Currently, the active devices in micro indoor distribution systems mainly use nearby power sources. However, in our actual equipment installations, we often encounter scenarios where on-site power is unavailable or difficult to obtain. Summary of the Invention

[0003] This invention provides a micro indoor distribution system that can be remotely powered. The system combines DC power and mobile communication radio frequency signals through a near-end unit and then passes them through a distribution unit to power a remote unit.

[0004] This utility model relates to a remotely powered micro-indoor distribution system (see [link]). Figure 1 It consists of five parts: receiving antenna, near-end unit, distribution unit, far-end unit, and coverage antenna feeder, which are connected by coaxial cable.

[0005] The near-end unit includes an amplification module, a control module, a synchronization module, an AC-to-DC power supply module, and a power feeder.

[0006] The distributed unit consists of three power distribution couplings.

[0007] The remote unit includes an amplification module, a control module, a synchronization module, and a power collector.

[0008] The receiving antenna introduces the outdoor base station signal (RF signal) into the indoor unit via a coaxial cable from the IN port of the near-end unit, providing signal source access for the system. The near-end unit amplifies the RF signal for the first time using its amplification module. The near-end unit's AC-to-DC power module converts AC power to DC power, supplying power to the near-end unit while simultaneously feeding DC power into the system via a feeder. This ensures that the near-end unit's OUT port outputs both the RF signal and DC power. The output RF signal and DC power are then split by a distribution unit and sent to the far-end unit. The distribution unit supports four far-end units. The far-end unit separates the RF signal and DC power from the distribution unit using a power take-off device. The power take-off device's DC port provides DC power to the far-end unit, while its RF port outputs the RF signal, which is then amplified again by the amplification module. The amplified RF signal is then output from the far-end unit's OUT port. The OUT port of the remote unit outputs radio frequency signals to provide wireless signal coverage through the coverage antenna feeder.

[0009] When the power supply is working: When the radio frequency (RF) signal is input from the IN terminal of the power supply, it is combined with the direct current (DC) input from the DC terminal of the power supply and output as the RF signal and the DC current from the OUT terminal of the power supply. The inductor of the power supply prevents the RF signal from being transmitted towards the DC terminal. The capacitor of the power supply transmits the DC current towards the IN port of the power supply.

[0010] When the power supply is working: After the DC power and the RF signal are input from the IN terminal of the power supply, part of the RF signal and the DC power are removed by the capacitor element of the power supply and the RF signal is output from the OUT terminal of the power supply; the other part of the RF signal and the DC power are filtered out by the inductor element and the DC power is output from the DC terminal of the power supply. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the near-end unit structure of this utility model.

[0013] Figure 3 This is a schematic diagram of the distribution unit structure of this utility model.

[0014] Figure 4 This is a schematic diagram of the remote unit structure of this utility model.

[0015] Figure 5 This is a schematic diagram of the feeder structure of this utility model.

[0016] Figure 6 This is a schematic diagram of the structure of the power collector of this utility model. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the embodiments, but the scope of protection of the present invention is not limited thereto.

[0018] This utility model relates to a remotely powered micro-indoor distribution system (see [link]). Figure 1 It consists of five parts: receiving antenna 1, near-end unit 2, distribution unit 3, far-end unit 4, and coverage antenna feeder 5, which are connected by coaxial cable.

[0019] The near-end unit 2 includes an amplification module 21, a control module 22, a synchronization module 23, an AC to DC power supply module 24, and a power supply unit 25.

[0020] The distributed unit 3 consists of three power distribution couplings 31.

[0021] The remote unit 4 includes an amplification module 41, a control module 42, a synchronization module 43, and a power take-off device 44.

[0022] Receiving antenna 1 introduces the outdoor base station signal (RF signal) into the indoor system via a coaxial cable from the IN port of near-end unit 2, providing signal source access for the system. Near-end unit 2 amplifies the introduced base station signal (RF signal) through its amplification module. Near-end unit 3's AC-to-DC power module 24 converts AC power to DC power, supplying power to near-end unit 2 while simultaneously feeding the DC power into the system via feeder 25. This allows near-end unit 2 to output both RF and DC power at its OUT port. The output RF and DC power are then split by distribution unit 3 and transmitted to remote unit 4. Distribution unit 3 supports four remote units 4. Remote unit 4 separates the RF and DC power from distribution unit 3 using its power take-off device 44. The DC port of the power take-up device 44 provides DC power to the remote unit 4. After the RF port of the power take-up device 44 outputs the radio frequency (RF) signal, it enters the amplification module 41 of the remote unit 4 for further amplification. The amplified RF signal is then output from the OUT port of the remote unit 4. The RF signal output from the OUT port of the remote unit 4 provides wireless signal coverage through the coverage antenna feeder 5.

[0023] When the power supply 25 is working: After the radio frequency (RF) signal is input from the IN terminal of the power supply 25, it is combined with the direct current (DC) input from the DC terminal of the power supply 25 and output as the RF signal and the DC current from the OUT terminal of the power supply 25. The inductor 252 of the power supply 25 prevents the RF signal from being transmitted towards the DC terminal of the power supply 25. The capacitor 251 of the power supply 25 prevents the DC current from being transmitted towards the IN port of the power supply 25.

[0024] When the power consumer 44 is working: after the DC power and the radio frequency signal RF are input from the IN terminal of the power consumer 44, part of the radio frequency signal RF and the DC power pass through the capacitor element 441 of the power consumer 44 to remove the DC power, and the radio frequency signal RF is output from the OUT terminal of the power consumer 44; the other part of the radio frequency signal RF and the DC power pass through the inductor element 442 to filter out the radio frequency signal RF, and the DC terminal of the power consumer 44 outputs the DC power.

Claims

1. A remotely powered micro-indoor distribution system, characterized in that: The micro-indoor distribution system comprises five parts: a receiving antenna, a near-end unit, a distribution unit, a far-end unit, and a coverage antenna feeder, all connected via coaxial cables. The near-end unit includes an amplification module, a control module, a synchronization module, an AC-to-DC power supply module, and a feeder. The distribution unit consists of three power divider couplers. The far-end unit includes an amplification module, a control module, a synchronization module, and a feeder. The receiving antenna introduces the outdoor base station RF signal into the indoor system via a coaxial cable from the IN port of the near-end unit, providing signal source access. The near-end unit amplifies the introduced base station RF signal through its amplification module. The near-end unit's AC-to-DC power supply module converts AC mains power into DC power, supplying power to the near-end unit while simultaneously... DC power is fed into the system via a feeder, so that the OUT port of the near-end unit outputs both RF and DC power. The output RF and DC power are then split by a distribution unit and sent to the far-end unit. The distribution unit supports four far-end units. The far-end unit separates the RF and DC power from the distribution unit through a tap. The DC port of the tap provides DC power to the far-end unit. After the RF signal is output from the tap's RF port, it enters the amplification module of the far-end unit for further amplification. The amplified RF signal is then output from the OUT port of the far-end unit. The RF signal output from the OUT port of the far-end unit is used to provide wireless signal coverage through a coverage antenna feeder.

2. The remotely powered micro-indoor distribution system according to claim 1, characterized in that: When the power supply is working: When the radio frequency signal RF is input from the IN terminal of the power supply, it is combined with the DC power input from the DC terminal of the power supply and output from the OUT terminal of the power supply as radio frequency signal RF and DC power. The inductor of the power supply prevents the radio frequency signal RF from being transmitted to the DC terminal of the power supply, while the capacitor of the power supply transmits the DC power to the IN port of the power supply.

3. The remotely powered micro-indoor distribution system according to claim 1, characterized in that: When the power supply is working: After the DC power and the RF signal are input from the IN terminal of the power supply, part of the RF signal and the DC power are removed by the capacitor element of the power supply and the RF signal is output from the OUT terminal of the power supply; the other part of the RF signal and the DC power are filtered out by the inductor element and the DC power is output from the DC terminal of the power supply.

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