CN116846473A - Wireless receiving broadband backhaul system and implementation method thereof - Google Patents

Abstract

The invention relates to a wireless receiving broadband backhaul system and an implementation method thereof. The system comprises a near-end unit and a far-end unit, wherein the near-end unit receives a broadband downlink wireless signal in a wireless receiving mode through a receiving antenna, the near-end unit performs low-noise amplification on the broadband downlink wireless signal and then converts the broadband downlink wireless signal into a single-wavelength optical signal, the single-wavelength optical signal is transmitted to the far-end unit through an optical fiber, the far-end unit restores the single-wavelength optical signal transmitted by the near-end unit into the broadband downlink wireless signal, and then the coverage of a coverage area is completed after power amplification; the far-end unit converts the broadband uplink wireless signal into a single-wavelength optical signal, the single-wavelength optical signal is transmitted to the near-end unit through the optical fiber, the near-end unit restores the single-wavelength optical signal transmitted by the far-end unit into the broadband uplink wireless signal, and the broadband uplink wireless signal is transmitted back to the information source equipment after power amplification.

Description

Wireless receiving broadband backhaul system and implementation method thereof

Technical Field

The invention relates to the technical field of wireless communication, in particular to a wireless receiving broadband backhaul system and an implementation method thereof.

Background

Along with more and more shared scenes of co-construction, the more and more requirements are required for broadband multimode equipment, a wireless receiving broadband backhaul system adopts a wireless receiving mode, so that the information source selection is more flexible, the construction period is short, the system structure is simple, the cost is low, and a new solution is provided for the shared application scenes of co-construction.

Disclosure of Invention

The invention aims to avoid the requirement on optical fiber resources and enable the selection of information sources to be flexible, so that the invention provides a wireless receiving broadband return system and an implementation method thereof, wherein a near-end unit receives a broadband downlink wireless signal in a wireless receiving mode through a receiving antenna, the near-end unit performs low-noise amplification on the broadband downlink wireless signal and then converts the broadband downlink wireless signal into an optical signal with a single wavelength to be transmitted to a far-end unit through an optical fiber, and the far-end unit restores the optical signal with the single wavelength transmitted by the near-end unit into the broadband downlink wireless signal and then completes coverage of a coverage area after power amplification; the far-end unit converts the broadband uplink wireless signal into a single-wavelength optical signal, the single-wavelength optical signal is transmitted to the near-end unit through the optical fiber, the near-end unit restores the single-wavelength optical signal transmitted by the far-end unit into the broadband uplink wireless signal, and the broadband uplink wireless signal is transmitted back to the information source equipment after power amplification.

In order to achieve the above purpose, the technical scheme of the invention is as follows: a wireless receiving broadband return system comprises a near-end unit connected with information source equipment and a far-end unit connected with the near-end unit;

the near-end unit comprises a frequency selection module 1, low-noise/power amplifier integrated modules 1 to N, a combiner module 1, a power divider 1, a broadband laser 1, a broadband detector 1, WDM1 and an optical splitter; the frequency selecting module 1, the low-noise/power amplification integrated modules 1 to N, the combiner module 1, the power divider 1, the broadband laser 1, the WDM1 and the optical divider are sequentially connected to form a near-end unit downlink; the optical divider, the WDM1, the broadband detector 1, the power divider 1, the combiner module 1, the low-noise/power amplifier integrated modules 1 to N and the frequency selection module 1 are sequentially connected to form a near-end unit uplink;

the remote unit comprises WDM2, broadband laser 2, broadband detector 2, power divider 1, frequency selecting module 2, power amplifier/low noise integrated module 1 to N and multiplexer connected with the optical splitter; the WDM2, the broadband detector 2, the power divider 1, the frequency selecting module 2, the power amplification/low noise integrated modules 1 to N and the multiplexer form a remote unit downlink, and the multiplexer, the power amplification/low noise integrated modules 1 to N, the frequency selecting module 2, the power divider 1, the broadband laser 2 and the WDM2 are sequentially connected to form a remote unit uplink.

In an embodiment of the present invention, the downlink specific connection manner of the near-end unit is: the frequency selecting module 1 is connected with the combiner module 1, the power divider 1 and the broadband laser 1 through the low noise/power amplifier integrated modules 1 to N and the WDM1 and the optical splitter respectively; the uplink specific connection mode of the near-end unit is as follows: the optical splitter is connected with the combiner module 1 through the WDM1, the broadband detector 1 and the power splitter 1, and the combiner module 1 is connected with the frequency selection module 1 through the low-noise/power amplification integrated modules 1 to N respectively.

In an embodiment of the present invention, the downlink specific connection manner of the remote unit is: the WDM2 is connected with the frequency selecting module 2 through the broadband detector 2 and the power divider 1, and the frequency selecting module 2 is connected with the multiplexer through the power amplifier/low noise integrated modules 1 to N respectively; the uplink specific connection mode of the remote unit is as follows: the multiplexer is connected with the frequency selecting module 2, the power divider 1, the broadband laser 2 and the WDM2 through the power amplification/low noise integrated modules 1 to N respectively.

In an embodiment of the present invention, the broadband lasers 1 and 2 are capable of converting the wireless signals in the 700-3700MHz frequency band range into the optical signals with a single wavelength, and the broadband detectors 1 and 2 are capable of converting the optical signals with a single wavelength into the wireless signals in the 700-3700MHz frequency band range.

The invention also provides a realization method based on the wireless receiving broadband return system, wherein the near-end unit receives the broadband downlink wireless signal in a wireless receiving mode through the receiving antenna, the near-end unit performs low-noise amplification on the broadband downlink wireless signal and then converts the broadband downlink wireless signal into a single-wavelength optical signal to be transmitted to the far-end unit through the optical fiber, and the far-end unit restores the single-wavelength optical signal transmitted by the near-end unit into the broadband downlink wireless signal and then completes coverage of a coverage area after power amplification; the far-end unit converts the broadband uplink wireless signal into an optical signal with a single wavelength, the optical signal is transmitted to the near-end unit through the optical fiber, and the near-end unit restores the optical signal with the single wavelength transmitted by the far-end unit into the broadband uplink wireless signal, and the broadband uplink wireless signal is transmitted back to the information source equipment after power amplification.

In one embodiment of the present invention, the downlink of the near-end unit and the downlink of the far-end unit form the downlink of the whole system, and the uplink of the near-end unit and the uplink of the far-end unit form the uplink of the whole system; the method comprises the following steps:

downlink link: the near-end unit enters a frequency selecting module 1 of the near-end unit in a wireless receiving mode through a receiving antenna, the frequency selecting module 1 carries out frequency selecting on the downlink wireless signals in the 700-3700MHz frequency range, the downlink wireless signals are decomposed into the low noise/power amplification integrated modules 1 to N of the corresponding frequency ranges, the low noise amplification is carried out, the amplified wireless signals enter ports of the corresponding frequency ranges of the combining module 1 respectively, the downlink wireless signals in the 700-3700MHz frequency range are synthesized again after being combined by the combining module 1, enter a power divider 1 after being divided by the power divider 1, enter a broadband laser 1, the broadband laser 1 converts the downlink wireless signals in the 700-3700MHz frequency range into optical signals with single wavelength lambda 1, the lambda 1 optical signals enter the optical divider through the WDM1, dividing a lambda 1 optical signal into multiple paths of optical signals and transmitting the multiple paths of optical signals to a plurality of far-end units through optical fibers, enabling the lambda 1 optical signals transmitted by a near-end unit to enter a broadband detector 2 through a WDM2 of the far-end unit, enabling the broadband detector 2 to convert the lambda 1 optical signals into downlink wireless signals in a 700-3700MHz frequency band range, enabling the downlink wireless signals in the 700-3700MHz frequency band range to enter a frequency selecting module 2 through a power divider 2, enabling the downlink wireless signals in the 700-3700MHz frequency band range to be subjected to frequency selection, decomposing the downlink wireless signals into downlink wireless signals in each frequency band, enabling the downlink wireless signals in each frequency band to enter a port of a corresponding frequency band of a multiplexer after being subjected to power amplification, enabling the downlink wireless signals in the 700-3700MHz frequency band range to be recombined through the multiplexer, and completing wireless signal coverage of coverage areas through a retransmission antenna;

uplink: the remote unit enters a multiplexer of the remote unit in a wireless receiving mode through a retransmission antenna, the multiplexer decomposes the uplink wireless signals in the 700-3700MHz frequency range, the uplink wireless signals decomposed into the uplink wireless signals in each frequency range enter a remote power amplification/low noise integrated module 1 to N of the corresponding frequency range respectively for low noise amplification and then enter a frequency selection module 2, the uplink wireless signals in the 700-3700MHz frequency range are synthesized again after being combined by the frequency selection module 2, enter a broadband laser 2 through a power divider 2, the broadband laser 2 converts the uplink wireless signals in the 700-3700MHz frequency range into optical signals with single wavelength lambda 2, and the lambda 2 optical signals are transmitted to the near-end unit through an optical fiber by the WDM 2; the lambda 2 optical signal is converted into an uplink wireless signal in a 700-3700MHz frequency band range by the broadband detector 1 through the optical splitter and the WDM1 broadband detector 1, the uplink wireless signal in the 700-3700MHz frequency band range is decomposed by the combiner module 1 and enters the corresponding frequency band port of the frequency selection module 1 after being respectively amplified by the low noise/power amplification integrated modules 1 to N of the corresponding frequency bands, and the uplink wireless signal in the 700-3700MHz frequency band range is returned to corresponding information source equipment through the receiving antenna after being combined by the frequency selection module 1.

Compared with the prior art, the invention has the following beneficial effects: the near-end unit receives the broadband downlink wireless signal in a wireless receiving mode through the receiving antenna, the near-end unit performs low-noise amplification on the broadband downlink wireless signal and then converts the broadband downlink wireless signal into an optical signal with a single wavelength, the optical signal with the single wavelength is transmitted to the far-end unit through the optical fiber, the far-end unit restores the optical signal with the single wavelength transmitted by the near-end unit into the broadband downlink wireless signal, and then the coverage of the coverage area is completed after power amplification; the far-end unit converts the broadband uplink wireless signal into a single-wavelength optical signal, the single-wavelength optical signal is transmitted to the near-end unit through the optical fiber, the near-end unit restores the single-wavelength optical signal transmitted by the far-end unit into the broadband uplink wireless signal, and the broadband uplink wireless signal is transmitted back to the information source equipment after power amplification.

Drawings

Fig. 1 is a schematic diagram of the system of the present invention.

FIG. 2 is a block diagram of a system application of the present invention.

Detailed Description

The technical scheme of the invention is specifically described below with reference to the accompanying drawings.

As shown in fig. 1, the present invention provides a wireless receiving broadband backhaul system, which includes a near-end unit connected to a base station, and a far-end unit connected to the near-end unit;

the near-end unit comprises a frequency selection module 1, low-noise/power amplifier integrated modules 1 to N, a combiner module 1, a power divider 1, a broadband laser 1, a broadband detector 1, WDM1 and an optical splitter; the frequency selecting module 1, the low-noise/power amplification integrated modules 1 to N, the combiner module 1, the power divider 1, the broadband laser 1, the WDM1 and the optical divider are sequentially connected to form a near-end unit downlink; the optical divider, the WDM1, the broadband detector 1, the power divider 1, the combiner module 1, the low-noise/power amplifier integrated modules 1 to N and the frequency selection module 1 are sequentially connected to form a near-end unit uplink;

the remote unit comprises WDM2, broadband laser 2, broadband detector 2, power divider 1, frequency selecting module 2, power amplifier/low noise integrated module 1 to N and multiplexer connected with the optical splitter; the WDM2, the broadband detector 2, the power divider 1, the frequency selecting module 2, the power amplification/low noise integrated modules 1 to N and the multiplexer form a remote unit downlink, and the multiplexer, the power amplification/low noise integrated modules 1 to N, the frequency selecting module 2, the power divider 1, the broadband laser 2 and the WDM2 are sequentially connected to form a remote unit uplink.

Fig. 2 is a block diagram of an application of the system of the present invention. The near end unit downlink and the far end unit downlink constitute the downlink of the whole system, and the near end unit uplink and the far end unit uplink constitute the uplink of the whole system.

The invention also provides a realization method of the wireless receiving broadband backhaul system based on the above, which comprises the following steps:

downlink link: the near-end unit enters a frequency selecting module 1 of the near-end unit through a receiving antenna to enable downlink wireless signals in a 700-3700MHz frequency range to enter a frequency selecting module 1 of the near-end unit in a wireless receiving mode, the frequency selecting module 1 enables the wireless signals in the 700-3700MHz frequency range to be subjected to frequency selecting, for example, the wireless signals are decomposed into low noise/power amplifier integrated modules in corresponding frequency ranges, such as 700MHz, 800MHz, 900MHz, 1800MHz and 2100MHz, the downlink wireless signals are respectively entered into low noise amplification integrated modules in corresponding frequency ranges, the amplified wireless signals are respectively entered into ports in corresponding frequency ranges of the combining module 1, the downlink wireless signals in the 700-3700MHz frequency range are synthesized again after being combined by the combining module 1, the downlink wireless signals in the 700-3700MHz frequency range are entered into a wide-band laser 1 after being branched by the power splitter 1, the wide-band laser 1 enables the downlink wireless signals in the 700-3700MHz frequency range to be converted into optical signals in a lambda 1 (single wavelength), the lambda 1 optical signals are entered into the optical splitter through the WDM1, the lambda 1 optical signals are respectively enter the optical splitter, the lambda 1 optical signals are transmitted into the optical signals in the corresponding frequency ranges through the optical fiber, the low noise/power amplifier integrated modules in the corresponding frequency ranges, the 1 optical signals are transmitted into the corresponding frequency ranges, the radio signals in the radio frequency ranges of the 700-3700MHz frequency range 2 MHz range, the radio signals are respectively enter the radio frequency range 2 to be synthesized into the radio signals in the corresponding frequency ranges, and the radio frequency range of the radio module 3700-3700, and the radio signals are converted into the radio signals in the radio frequency range 2 radio frequency range, and the radio signals are respectively enter the radio signals in the radio frequency range and the radio frequency band.

Uplink: the remote unit enters a multiplexer of the remote unit in a wireless receiving mode through a retransmission antenna, the multiplexer decomposes the uplink wireless signals in the 700-3700MHz frequency range, for example, the uplink wireless signals in the 700-3700MHz frequency range are decomposed into uplink wireless signals in each frequency range such as 700MHz, 800MHz, 900MHz, 1800MHz, 2100MHz and the like, the uplink wireless signals enter a remote power amplifier/low noise integrated module of the corresponding frequency range respectively for low noise amplification and then enter a frequency selection module 2, the uplink wireless signals in the 700-3700MHz frequency range are synthesized again after being combined by the frequency selection module 2, the uplink wireless signals enter a broadband laser 2 through a power divider 2, the broadband laser 2 converts the uplink wireless signals in the 700-3700MHz frequency range into optical signals of lambda 2 (single wavelength), and the lambda 2 optical signals are transmitted to the near-end unit through an optical fiber by the WDM 2; the lambda 2 optical signal is converted into an uplink wireless signal in a 700-3700MHz frequency band range by the broadband detector 1 through the optical splitter and the WDM1 broadband detector 1, the uplink wireless signal in the 700-3700MHz frequency band range is sent into the combining module 1 through the power splitter 1, the combining module 1 decomposes the uplink wireless signal in the 700-3700MHz frequency band range, for example, the uplink wireless signal in each frequency band such as 700MHz, 800MHz, 900MHz, 1800MHz, 2100MHz and the like is respectively sent into the low noise/power amplification integrated module in the corresponding frequency band for power amplification and then is sent into a frequency band port corresponding to the frequency selection module 1, and the uplink wireless signal is returned to corresponding information source equipment (the information source equipment comprises a base station and the like) through a receiving antenna after being subjected to the frequency selection module 1 combining module.

The above is a preferred embodiment of the present invention, and all changes made according to the technical solution of the present invention belong to the protection scope of the present invention when the generated functional effects do not exceed the scope of the technical solution of the present invention.

Claims (6)

1. The wireless receiving broadband backhaul system is characterized by comprising a near-end unit connected with information source equipment and a far-end unit connected with the near-end unit;

the near-end unit comprises a frequency selection module 1, low-noise/power amplifier integrated modules 1 to N, a combiner module 1, a power divider 1, a broadband laser 1, a broadband detector 1, WDM1 and an optical splitter; the frequency selecting module 1, the low-noise/power amplification integrated modules 1 to N, the combiner module 1, the power divider 1, the broadband laser 1, the WDM1 and the optical divider are sequentially connected to form a near-end unit downlink; the optical divider, the WDM1, the broadband detector 1, the power divider 1, the combiner module 1, the low-noise/power amplifier integrated modules 1 to N and the frequency selection module 1 are sequentially connected to form a near-end unit uplink;

the remote unit comprises WDM2, broadband laser 2, broadband detector 2, power divider 1, frequency selecting module 2, power amplifier/low noise integrated module 1 to N and multiplexer connected with the optical splitter; the WDM2, the broadband detector 2, the power divider 1, the frequency selecting module 2, the power amplification/low noise integrated modules 1 to N and the multiplexer form a remote unit downlink, and the multiplexer, the power amplification/low noise integrated modules 1 to N, the frequency selecting module 2, the power divider 1, the broadband laser 2 and the WDM2 are sequentially connected to form a remote unit uplink.

2. The wireless receiving broadband backhaul system of claim 1, wherein the downlink specific connection manner of the near-end unit is: the frequency selecting module 1 is connected with the combiner module 1, the power divider 1 and the broadband laser 1 through the low noise/power amplifier integrated modules 1 to N and the WDM1 and the optical splitter respectively; the uplink specific connection mode of the near-end unit is as follows: the optical splitter is connected with the combiner module 1 through the WDM1, the broadband detector 1 and the power splitter 1, and the combiner module 1 is connected with the frequency selection module 1 through the low-noise/power amplification integrated modules 1 to N respectively.

3. The wireless receiving broadband backhaul system of claim 1, wherein the remote unit downlink specific connection is: the WDM2 is connected with the frequency selecting module 2 through the broadband detector 2 and the power divider 1, and the frequency selecting module 2 is connected with the multiplexer through the power amplifier/low noise integrated modules 1 to N respectively; the uplink specific connection mode of the remote unit is as follows: the multiplexer is connected with the frequency selecting module 2, the power divider 1, the broadband laser 2 and the WDM2 through the power amplification/low noise integrated modules 1 to N respectively.

4. The wireless receiving broadband backhaul system according to claim 1, wherein the broadband lasers 1 and 2 are capable of converting the wireless signals in the 700-3700MHz frequency band range into single wavelength optical signals, and the broadband detectors 1 and 2 are capable of converting the single wavelength optical signals into the wireless signals in the 700-3700MHz frequency band range.

5. The method for implementing a wireless receiving broadband backhaul system according to any one of claims 1 to 4, wherein the near-end unit receives a broadband downlink wireless signal in a wireless receiving manner through a receiving antenna, the near-end unit performs low noise amplification on the broadband downlink wireless signal and then converts the broadband downlink wireless signal into an optical signal with a single wavelength, the optical signal is transmitted to the far-end unit through an optical fiber, the far-end unit restores the optical signal with the single wavelength transmitted by the near-end unit into the broadband downlink wireless signal, and then the coverage of the coverage area is completed after power amplification; the far-end unit converts the broadband uplink wireless signal into an optical signal with a single wavelength, the optical signal is transmitted to the near-end unit through the optical fiber, and the near-end unit restores the optical signal with the single wavelength transmitted by the far-end unit into the broadband uplink wireless signal, and the broadband uplink wireless signal is transmitted back to the information source equipment after power amplification.

6. The method according to claim 5, wherein the downlink of the near-end unit and the downlink of the far-end unit form a downlink of the whole system, and the uplink of the near-end unit and the uplink of the far-end unit form an uplink of the whole system; the method comprises the following steps:

downlink link: the near-end unit enters a frequency selecting module 1 of the near-end unit in a wireless receiving mode through a receiving antenna, the frequency selecting module 1 carries out frequency selecting on the downlink wireless signals in the 700-3700MHz frequency range, the downlink wireless signals are decomposed into the low noise/power amplification integrated modules 1 to N of the corresponding frequency ranges, the low noise amplification is carried out, the amplified wireless signals enter ports of the corresponding frequency ranges of the combining module 1 respectively, the downlink wireless signals in the 700-3700MHz frequency range are synthesized again after being combined by the combining module 1, enter a power divider 1 after being divided by the power divider 1, enter a broadband laser 1, the broadband laser 1 converts the downlink wireless signals in the 700-3700MHz frequency range into optical signals with single wavelength lambda 1, the lambda 1 optical signals enter the optical divider through the WDM1, dividing a lambda 1 optical signal into multiple paths of optical signals and transmitting the multiple paths of optical signals to a plurality of far-end units through optical fibers, enabling the lambda 1 optical signals transmitted by a near-end unit to enter a broadband detector 2 through a WDM2 of the far-end unit, enabling the broadband detector 2 to convert the lambda 1 optical signals into downlink wireless signals in a 700-3700MHz frequency band range, enabling the downlink wireless signals in the 700-3700MHz frequency band range to enter a frequency selecting module 2 through a power divider 2, enabling the downlink wireless signals in the 700-3700MHz frequency band range to be subjected to frequency selection, decomposing the downlink wireless signals into downlink wireless signals in each frequency band, enabling the downlink wireless signals in each frequency band to enter a port of a corresponding frequency band of a multiplexer after being subjected to power amplification, enabling the downlink wireless signals in the 700-3700MHz frequency band range to be recombined through the multiplexer, and completing wireless signal coverage of coverage areas through a retransmission antenna;

uplink: the remote unit enters a multiplexer of the remote unit in a wireless receiving mode through a retransmission antenna, the multiplexer decomposes the uplink wireless signals in the 700-3700MHz frequency range, the uplink wireless signals decomposed into the uplink wireless signals in each frequency range enter a remote power amplification/low noise integrated module 1 to N of the corresponding frequency range respectively for low noise amplification and then enter a frequency selection module 2, the uplink wireless signals in the 700-3700MHz frequency range are synthesized again after being combined by the frequency selection module 2, enter a broadband laser 2 through a power divider 2, the broadband laser 2 converts the uplink wireless signals in the 700-3700MHz frequency range into optical signals with single wavelength lambda 2, and the lambda 2 optical signals are transmitted to the near-end unit through an optical fiber by the WDM 2; the lambda 2 optical signal is converted into an uplink wireless signal in a 700-3700MHz frequency band range by the broadband detector 1 through the optical splitter and the WDM1 broadband detector 1, the uplink wireless signal in the 700-3700MHz frequency band range is decomposed by the combiner module 1 and enters the corresponding frequency band port of the frequency selection module 1 after being respectively amplified by the low noise/power amplification integrated modules 1 to N of the corresponding frequency bands, and the uplink wireless signal in the 700-3700MHz frequency band range is returned to corresponding information source equipment through the receiving antenna after being combined by the frequency selection module 1.