Wireless communication network device

Abstract

An embodiment of the present invention provides a wireless communication network device, including: a first end of a first mobile communication module is connected to a first interface of a first combiner, a first end of a second mobile communication module is connected to a second interface of the first combiner, a first interface of a third mobile communication module is connected to a third interface of the first combiner, a fourth interface of the first combiner is connected to a first interface of the second combiner via a first coupler and a first power divider, a first end of a WiFi module is connected to a second interface of the second combiner, a second interface of the third mobile communication module is connected to a first polarized antenna via a second coupler and a second power divider, and a third interface of the second combiner is connected to a second polarized antenna via a third coupler and a third power divider. The present invention improves the reliability of the wireless communication network device.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of communications, and in particular to a wireless communication network device. Background Art

[0002] The communication network of a nuclear power plant is equipped with wireless communication devices. The existing wireless communication devices of the nuclear power plant use any one of the modules of Personal Handy-phone System (PHS), Multi-Carrier Wireless Information Local Loop (McWiLL), Wireless Fidelity (WiFi) and Time Division-Long Term Evolution (TD-LTE). However, the wireless communication device using a single module cannot meet the different types of business requirements of the nuclear power plant. It can be seen that the reliability of the existing wireless communication devices is poor. Summary of the invention

[0003] The purpose of the embodiment of the present invention is to provide a wireless communication network device, which solves the problem of poor reliability of existing wireless communication devices.

[0004] In order to achieve the above object, an embodiment of the present invention provides a wireless communication network device, including:

[0005] A first mobile communication module, a second mobile communication module, a third mobile communication module, a wireless fidelity WiFi module, a first combiner, a second combiner, a first coupler, a second coupler, a third coupler, a first power divider, a second power divider, a third power divider, a first polarized antenna, and a second polarized antenna, wherein:

[0006] The first end of the first mobile communication module is connected to the first interface of the first combiner, the first end of the second mobile communication module is connected to the second interface of the first combiner, the first interface of the third mobile communication module is connected to the third interface of the first combiner, the fourth interface of the first combiner is connected to the first interface of the second combiner via a first coupler and a first power divider, the first end of the WiFi module is connected to the second interface of the second combiner, the second interface of the third mobile communication module is connected to the first polarized antenna via a second coupler and a second power divider, the third interface of the second combiner is connected to the second polarized antenna via a third coupler and a third power divider, and the first mobile communication module, the second mobile communication module and the third mobile communication module are mobile communication systems using different frequencies.

[0007] Optionally, the third mobile communication module includes a baseband processing unit (Building Base band Unit, referred to as BBU) and a remote radio unit (Remote Radio Unit, referred to as RRU), the first end of the BBU is connected to the second end of the RRU, and the first end of the RRU is provided with a first interface and a second interface of the third mobile communication module.

[0008] Optionally, the wireless communication device also includes a dual-feed multiple-input multiple-output (MIMO) repeater, the first interface of the dual-feed MIMO repeater is connected to the first end of the third coupler, the second interface of the dual-feed MIMO repeater is connected to the first end of the second coupler, the third interface of the dual-feed MIMO repeater is connected to the second end of the third power divider, and the fourth interface of the dual-feed MIMO repeater is connected to the second end of the second power divider.

[0009] Optionally, the wireless communication device also includes a single feeder MIMO repeater, the feeder MIMO repeater is provided with a proximal module and a distal module, the first interface of the proximal module is connected to the first end of the third coupler, the second interface of the proximal module is connected to the first end of the second coupler, the third interface of the proximal module is connected to the first interface of the distal module via a feeder, the second interface of the distal module is connected to the second end of the third power distributor, and the third interface of the distal module is connected to the second end of the second power distributor.

[0010] Optionally, the BBU and the RRU are connected by optical fiber.

[0011] Optionally, the first polarized antenna and the second polarized antenna are both single-polarized antennas, and a distance between the single-polarized antennas is greater than or equal to 1.25 meters.

[0012] Optionally, the proximal module uses an independent power supply, and the remote module is connected to the independent power supply of the proximal module via the feeder.

[0013] Optionally, both the proximal module and the distal module are provided with a monitoring unit, and the monitoring unit adopts a frequency shift keying (FSK) modem chip.

[0014] Optionally, the proximal module is provided with an extended power supply.

[0015] Optionally, one end of the independent power supply is connected to the second end of a direct current power step-down converter (Direct Current-Direct Current, DC-DC for short), and the first end of the DC-DC supplies power to the proximal module.

[0016] One of the above technical solutions has the following advantages or beneficial effects:

[0017] An embodiment of the present invention provides a wireless communication network device, including: a first mobile communication module, a second mobile communication module, a third mobile communication module, a wireless fidelity WiFi module, a first combiner, a second combiner, a first coupler, a second coupler, a third coupler, a first power divider, a second power divider, a third power divider, a first polarized antenna, and a second polarized antenna, wherein: a first end of the first mobile communication module is connected to a first interface of the first combiner, a first end of the second mobile communication module is connected to a second interface of the first combiner, a first interface of the third mobile communication module is connected to a third interface of the first combiner, a fourth interface of the first combiner is connected to a first interface of the second combiner via a first coupler and a first power divider, a first end of the WiFi module is connected to a second interface of the second combiner, a second interface of the third mobile communication module is connected to the first polarized antenna via a second coupler and a second power divider, a third interface of the second combiner is connected to the second polarized antenna via a third coupler and a third power divider, and the first mobile communication module, the second mobile communication module, and the third mobile communication module are mobile communication systems using different frequencies. In this way, since the first mobile communication module, the second mobile communication module, the third mobile communication module and the WiFi module are connected in a circuit and a separate circuit is separated from the third mobile communication module, the reliability of the wireless communication network device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A principle block diagram of a wireless communication network device provided by an embodiment of the present invention;

[0019] Figure 2 A principle block diagram of another wireless communication network device provided by an embodiment of the present invention;

[0020] Figure 3 A principle block diagram of another wireless communication network device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1 As shown, an embodiment of the present invention provides a wireless communication network device, including: a first mobile communication module, a second mobile communication module, a third mobile communication module, a wireless fidelity WiFi module, a first combiner, a second combiner, a first coupler, a second coupler, a third coupler, a first power divider, a second power divider, a third power divider, a first polarized antenna, and a second polarized antenna, wherein:

[0023] The first end of the first mobile communication module is connected to the first interface of the first combiner, the first end of the second mobile communication module is connected to the second interface of the first combiner, the first interface of the third mobile communication module is connected to the third interface of the first combiner, the fourth interface of the first combiner is connected to the first interface of the second combiner via a first coupler and a first power divider, the first end of the WiFi module is connected to the second interface of the second combiner, the second interface of the third mobile communication module is connected to the first polarized antenna via a second coupler and a second power divider, the third interface of the second combiner is connected to the second polarized antenna via a third coupler and a third power divider, and the first mobile communication module, the second mobile communication module and the third mobile communication module are mobile communication systems using different frequencies.

[0024] Among them, the first mobile communication module may be a PHS module, the second mobile communication module may be a McWiLL module, and the third mobile communication module may be a TD-LTE module.

[0025] Among them, the working frequency band of the first mobile communication module is 1900-1920MHz, the working frequency band of the second mobile communication module is 1785-1805MHz, the working frequency band of the third mobile communication module is 2320-2370MHz, and the working frequency band of the WiFi module is 2.4GHz; the first mobile communication module, the second mobile communication module, the third mobile communication module and the WiFi module can be combined to form a main path, and a separate path in the third mobile communication module can form a branch; the first combiner can be a three-frequency combiner, the second combiner can be a multi-frequency combiner, and the first combiner and the second combiner are set Ports for each frequency band are provided, and multiple signals can be added to one port; the first coupler, the second coupler and the third coupler can extract signals from a communication line (for example: a main line or a branch line), and the first power divider, the second power divider and the third power divider can equally divide the signal power of one port to the output port. In this embodiment, the output port is a first polarized antenna or a second polarized antenna; the operating frequency of the first coupler, the second coupler, the third coupler, the first power divider, the second power divider and the third power divider can be 1700-2500MHz; the third mobile communication module can be used as a base station.

[0026] Among them, the first mobile communication module can be used for 2G network communication, the second mobile communication module can be used for 3G network communication, the third mobile communication module can be used for 4G network communication, and the WiFi module is used for dedicated network communication, and the dedicated network can be a local area network.

[0027] In addition, the first polarized antenna and the second polarized antenna may be single-polarized antennas or dual-polarized antennas.

[0028] It should be noted that since the WiFi module has the highest operating frequency band, the WiFi module has the largest signal transmission loss under the same spatial distance, and the base station transmission power of the WiFi module is low, and the coverage distance is greatly limited, so the WiFi module is combined near the second polarized antenna end.

[0029] In this embodiment, the first end of the first mobile communication module is connected to the first interface of the first combiner, the first end of the second mobile communication module is connected to the second interface of the first combiner, the first interface of the third mobile communication module is connected to the third interface of the first combiner, the fourth interface of the first combiner is connected to the first interface of the second combiner via the first coupler and the first power divider, the first end of the WiFi module is connected to the second interface of the second combiner, the second interface of the third mobile communication module is connected to the first polarized antenna via the second coupler and the second power divider, and the third interface of the second combiner is connected to the second polarized antenna via the third coupler and the third power divider. In this way, since the first mobile communication module, the second mobile communication module, the third mobile communication module and the WiFi module are connected, and a separate path is separated from the third mobile communication module, the reliability of the wireless communication network device is improved.

[0030] Optional, such as Figure 1 As shown, the third mobile communication module includes a baseband processing unit BBU and a remote radio unit RRU, the first end of the BBU is connected to the second end of the RRU, and the first end of the RRU is provided with a first interface and a second interface of the third mobile communication module.

[0031] Among them, one BBU can support multiple RRUs. The BBU can be placed centrally in the nuclear island communication room, and the RRU can be installed in the weak-current equipment room on each floor. According to capacity requirements, sufficient capacity can be allocated to the RRU in the area through BBU control to support capacity expansion; BBU can be used to implement signal processing, such as modulation and demodulation, and RRU can be used to send and receive signals.

[0032] In this embodiment, the wireless communication network device uses a BBU, an RRU, a first polarized antenna and a second polarized antenna, which can provide signals for spaces with a small signal coverage area and no blind spots, further improving the reliability of the wireless communication device.

[0033] Optional, such as Figure 2 As shown, the wireless communication network device also includes: a dual-feed multi-input multi-output MIMO repeater, the first interface of the dual-feed MIMO repeater is connected to the first end of the third coupler, the second interface of the dual-feed MIMO repeater is connected to the first end of the second coupler, the third interface of the dual-feed MIMO repeater is connected to the second end of the third power divider, and the fourth interface of the dual-feed MIMO repeater is connected to the second end of the second power divider.

[0034] Among them, the dual-feed MIMO repeater is equipped with a filter, a circulator, a trunk amplifier and a low-noise amplifier. The low-noise amplifier can be understood as a low-noise amplifier, and the trunk amplifier can perform power compensation for the wireless communication device; the dual-feed MIMO repeater can be used to amplify the signal.

[0035] In addition, the wireless signal transmitted by the wireless terminal is introduced by the first polarized antenna and the second polarized antenna, amplified by the low noise amplifier, and then passes through the filter to exit the dual-feed MIMO repeater, and enters the signal source receiving end through the first coupler, the second coupler and the third coupler. The signal source can be the first mobile communication module, the second mobile communication module, the third mobile communication module and the WiFi module. The signal source receiving end can be the fourth interface of the first combiner, the third interface of the second combiner and the first end of the second coupler, completing the uplink signal coverage; the two-way (for example: main road and branch) downlink signals emitted from the signal source enter the first interface and the second interface of the dual-feed MIMO repeater through the third coupler and the second coupler respectively, the interference signal is filtered out by the filter, and the signal is amplified by the trunk amplifier after passing through the circulator, and then after exiting the circulator, it enters the coverage area through the filter, the third power divider and the second power divider, and sends the signal through the second polarized antenna and the first polarized antenna.

[0036] It should be noted that the wireless communication network device using BBU, RRU, first polarized antenna, dual-feeder MIMO repeater and second polarized antenna is suitable for a space with a large signal coverage area and unrestricted feeder installation.

[0037] In this embodiment, the first interface of the dual-feed MIMO repeater is connected to the first end of the third coupler, the second interface of the dual-feed MIMO repeater is connected to the first end of the second coupler, the third interface of the dual-feed MIMO repeater is connected to the second end of the third power divider, and the fourth interface of the dual-feed MIMO repeater is connected to the second end of the second power divider. In this way, by setting the dual-feed MIMO repeater, the signal quality of the wireless communication device is improved.

[0038] Optional, such as Figure 3 As shown, the wireless communication network device also includes: a single feeder MIMO repeater, the feeder MIMO repeater is provided with a proximal module and a distal module, the first interface of the proximal module is connected to the first end of the third coupler, the second interface of the proximal module is connected to the first end of the second coupler, the third interface of the proximal module is connected to the first interface of the distal module through a single feeder, the second interface of the distal module is connected to the second end of the third power distributor, and the third interface of the distal module is connected to the second end of the second power distributor.

[0039] Among them, the proximal module is equipped with a filter, a circulator, a mixer, a combiner, a power divider and an amplifier, and the remote module is equipped with a filter, a circulator, a splitter, a mixer, a combiner, a power divider and an amplifier; one proximal module can carry multiple remote modules; the proximal module can be used to combine and amplify signals, and the remote module can be used to split and amplify signals.

[0040] Among them, the two downlink signals of the signal source are connected to the first interface and the second interface of the near-end module respectively through the third coupler and the second coupler, and enter the circulator after filtering out the interference signal through the filter, and the two downlink signals are converted into signals of different frequencies and non-interfering with each other through the mixer, and then combined into one signal by the combiner, and then amplified by the amplifier to exit the circulator, and the signal is transmitted to the remote module through a single main feeder. In the remote module, the signal passes through the circulator, and is separated into two signals based on different frequencies through the splitter, and then restored to two downlink signals through the mixer and the amplifier respectively, and then exits the circulator, and is transmitted to the first polarized antenna and the second polarized antenna through the filter, the third power divider and the second power divider.

[0041] In addition, the signal transmitted by the wireless terminal is introduced from the first polarized antenna and the second polarized antenna, received by the remote module, filtered out interference signals through the filter, and then enters the circulator. The two signals coming out of the circulator are combined into one signal through the combiner, and then the signal is amplified by the amplifier to exit the circulator and transmitted to the near-end module. In the near-end module, the signal first passes through the circulator, and then the power divider divides the signal into two signals, which respectively pass through the circulator and the filter to exit the near-end module, and are transmitted back to the signal source by the first coupler, the second coupler and the third coupler to complete the transmission of the uplink signal.

[0042] It should be noted that the wireless communication network device using BBU, RRU, first polarized antenna, single feeder MIMO repeater and second polarized antenna is suitable for spaces with large signal coverage areas and limited feeder installation.

[0043] In this embodiment, the single feeder MIMO repeater is provided with a proximal module and a distal module, the first interface of the proximal module is connected to the second end of the third coupler, the second interface of the proximal module is connected to the second end of the second coupler, the third interface of the proximal module is connected to the first interface of the distal module through a single feeder, the second interface of the distal module is connected to the first end of the third power divider, and the third interface of the distal module is connected to the first end of the second power divider. In this way, by providing a single feeder MIMO repeater, the signal quality of the wireless communication device is further improved.

[0044] Optional, such as Figure 1 As shown, the BBU and the RRU are connected by optical fiber.

[0045] Among them, optical fiber can be used between BBU and RRU, and coaxial cable can be used for other connections.

[0046] In this embodiment, optical fiber is used between the BBU and the RRU. Since the signal has less loss when transmitted through the optical fiber, the feeder loss of the wireless communication device is reduced, and the signal quality of the wireless communication device is further improved.

[0047] Optional, such as Figure 2 As shown, the first polarized antenna and the second polarized antenna are both single-polarized antennas, and the distance between the single-polarized antennas is greater than or equal to 1.25 meters.

[0048] Among them, the single-polarized antenna can be suitable for independent closed spaces; the distance between the single-polarized antennas is greater than or equal to 1.25 meters to meet the low correlation of the dual-antenna channels, and the operating frequency of the single-polarized antenna is 1700-2500MHz.

[0049] It should be noted that polarized antennas include single-polarized antennas and dual-polarized antennas, and dual-polarized antennas are suitable for non-enclosed spaces.

[0050] In this embodiment, the first polarized antenna and the second polarized antenna are both single-polarized antennas, and the distance between the single-polarized antennas is greater than or equal to 1.25 meters, which further improves the signal quality of the wireless communication network device.

[0051] Optional, such as Figure 3 As shown, the proximal module adopts an independent power supply, and the remote module is connected to the independent power supply of the proximal module through the single feeder line.

[0052] Among them, the independent power supply can be understood as the basic power supply, and the independent power supply can be a DC power supply or an AC power supply; the remote module is connected to the independent power supply of the proximal module through a single feeder line, and the DC power supply and the RF signal are separated by a distributor in the remote module. The power divider and coupler must also use corresponding DC-capable components.

[0053] In this embodiment, the proximal module uses an independent power supply, and the remote module is connected to the independent power supply of the proximal module through a single feeder line. In this way, this power supply method requires little engineering modification, further improving the reliability of the wireless communication device.

[0054] Optional, such as Figure 3 As shown, both the proximal module and the distal module are provided with a monitoring unit, and the monitoring unit adopts a frequency shift keying FSK modem chip.

[0055] Among them, the monitoring unit can be used to adjust the signal gain. The monitoring unit uses a frequency shift keying FSK modem chip to remotely monitor the power supply status of the proximal module and the distal module, and the output power of the two signals. The operating frequency of the FSK modem chip is between 800 and 1000 MHz.

[0056] In this embodiment, both the near-end module and the far-end module are provided with a monitoring unit, and the monitoring unit adopts a frequency shift keying FSK modem chip, which further improves the signal quality of the wireless communication device.

[0057] Optional, such as Figure 3 As shown, the proximal module is provided with an extended power supply.

[0058] Among them, the extended power supply can enable the proximal module to carry multiple remote modules.

[0059] In this embodiment, the proximal module is provided with an extended power supply, which improves the signal coverage range of the wireless communication device.

[0060] Optional, such as Figure 3 As shown, one end of the independent power supply is connected to the second end of a direct current power supply step-down converter DC-DC, and a first end of the DC-DC supplies power to the proximal module.

[0061] Among them, when the independent power supply is a DC power supply, the DC power supply is to supply 48V DC power to the proximal module and the remote module feeder through the power backplane, and the proximal module uses DC-DC to convert the 48V DC power into 5V or 12V DC power.

[0062] In addition, when the independent power supply is powered by an AC power supply, an AC-DC step-down converter (Alternating Current-Direct Current, referred to as AC-DC) is used to convert the 220V AC power supply into a 48V DC power supply, and then a DC-DC is used to convert the 48V DC power supply into a 5V or 12V DC power supply, and then the proximal module and the remote module feeders are powered respectively.

[0063] In this embodiment, one end of the independent power supply is connected to the second end of the DC power step-down converter DC-DC, and the first end of the DC-DC supplies power to the proximal module, thereby improving the reliability of the wireless communication device.

[0064] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A wireless communication network device, characterized in that: include: A first mobile communication module, a second mobile communication module, a third mobile communication module, a wireless fidelity WiFi module, a first combiner, a second combiner, a first coupler, a second coupler, a third coupler, a first power divider, a second power divider, a third power divider, a first polarized antenna, and a second polarized antenna, wherein: The first end of the first mobile communication module is connected to the first interface of the first combiner, the first end of the second mobile communication module is connected to the second interface of the first combiner, the first interface of the third mobile communication module is connected to the third interface of the first combiner, the fourth interface of the first combiner is connected to the first interface of the second combiner via a first coupler and a first power divider, the first end of the WiFi module is connected to the second interface of the second combiner, the second interface of the third mobile communication module is connected to the first polarized antenna via a second coupler and a second power divider, the third interface of the second combiner is connected to the second polarized antenna via a third coupler and a third power divider, and the first mobile communication module, the second mobile communication module and the third mobile communication module are mobile communication systems using different frequencies; The first polarized antenna and the second polarized antenna are single-polarized antennas; The third mobile communication module includes a baseband processing unit BBU and a remote radio unit RRU, the first end of the BBU is connected to the second end of the RRU, and the first end of the RRU is provided with a first interface and a second interface of the third mobile communication module.

2. The wireless communication network device according to claim 1, wherein: Also includes: A dual-feed MIMO repeater, wherein the first interface of the dual-feed MIMO repeater is connected to the first end of the third coupler, the second interface of the dual-feed MIMO repeater is connected to the first end of the second coupler, the third interface of the dual-feed MIMO repeater is connected to the second end of the third power divider, and the fourth interface of the dual-feed MIMO repeater is connected to the second end of the second power divider.

3. The wireless communication network device according to claim 1, wherein: Also includes: A single feeder MIMO repeater, wherein the feeder MIMO repeater is provided with a proximal module and a distal module, wherein the first interface of the proximal module is connected to the first end of the third coupler, the second interface of the proximal module is connected to the first end of the second coupler, the third interface of the proximal module is connected to the first interface of the distal module via a feeder, the second interface of the distal module is connected to the second end of the third power distributor, and the third interface of the distal module is connected to the second end of the second power distributor.

4. The wireless communication network device according to claim 1, wherein: The BBU and the RRU are connected with each other by optical fiber.

5. The wireless communication network device according to claim 1, wherein: The distance between the single-polarized antennas is greater than or equal to 1.25 meters.

6. The wireless communication network device according to claim 3, wherein: The proximal module uses an independent power supply, and the remote module is connected to the independent power supply of the proximal module through the feeder.

7. The wireless communication network device according to claim 3, wherein: The near-end module and the far-end module are both provided with a monitoring unit, and the monitoring unit adopts a frequency shift keying FSK modem chip.

8. The wireless communication network device according to claim 3, wherein: The proximal module is provided with an extended power supply.

9. The wireless communication network device according to claim 6, wherein: One end of the independent power supply is connected to the second end of a direct current power supply step-down converter DC-DC, and a first end of the DC-DC supplies power to the proximal module.

Images