CN220935189U - Low-cost broadband return system - Google Patents
Low-cost broadband return system Download PDFInfo
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- CN220935189U CN220935189U CN202321689280.2U CN202321689280U CN220935189U CN 220935189 U CN220935189 U CN 220935189U CN 202321689280 U CN202321689280 U CN 202321689280U CN 220935189 U CN220935189 U CN 220935189U
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Abstract
The utility model relates to a low-cost broadband backhaul system. The system comprises a near-end unit and a far-end unit, wherein the near-end unit is coupled with a downlink wireless signal of a base station in a direct coupling mode and is combined into a downlink wireless signal of a broadband base station, the downlink wireless signal is converted into an optical signal with a single wavelength and 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 downlink wireless signal with the broadband, and the coverage of a 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 transmits the broadband uplink wireless signal back to the information source equipment. The system has the advantages of simple structure, low cost and the like.
Description
Technical Field
The utility model relates to the technical field of wireless communication, in particular to a low-cost broadband backhaul system.
Background
Along with more and more shared scenes of co-construction, the more and more needs are required for broadband multimode equipment, a low-cost broadband backhaul system adopts a direct coupling mode, so that the signal source is purer, the signal to noise ratio is good, broadband multimode signal coverage is realized at low cost, 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 utility model aims to make the signal source purer and the signal-to-noise ratio good, so as to provide a low-cost broadband return system, wherein a near-end unit is coupled with a downlink wireless signal of a base station in a direct coupling mode and is combined into the downlink wireless signal of the base station in a broadband mode, then the downlink wireless signal is converted into an optical signal with a single wavelength, the optical signal is transmitted to a 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 downlink wireless signal in the broadband mode, and then the coverage of a 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, and transmits the optical signal with the single wavelength 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 transmits the broadband uplink wireless signal back to the information source equipment (namely the base station in the utility model).
In order to achieve the above purpose, the technical scheme of the utility model is as follows: a low-cost broadband backhaul system comprises a near-end unit connected with a base station, and a far-end unit connected with the near-end unit;
The near-end unit comprises a combining module 1, a combining module 2, an electric bridge 1, a broadband laser 1, a broadband detector 1, a WDM1 and an optical splitter; the combining module 1, the combining module 2, the bridge 1, the broadband laser 1, the WDM1 and the optical splitter are sequentially connected to form a near-end unit downlink; the optical splitter, the WDM1, the broadband detector 1, the bridge 1, the combiner module 1 and the combiner module 2 are sequentially connected to form a near-end unit uplink;
The remote unit comprises WDM2, a broadband laser 2, a broadband detector 2, an electric bridge 2, a branching module 1, a branching module 2, power amplification/low noise integrated modules 1 to N, power amplification/low noise integrated modules n+1 to M and a multiplexer which are connected with the optical branching device; the WDM2, the broadband detector 2, the bridge 2, the branching module 1, the branching module 2, the power amplification/low noise integrated modules 1 to N, the power amplification/low noise integrated modules N+1 to M and the multiplexer are sequentially connected to form a remote unit downlink, and the multiplexer, the power amplification/low noise integrated modules 1 to N, the power amplification/low noise integrated modules N+1 to M, the branching module 1, the branching module 2, the bridge 2, the broadband laser 2 and the WDM2 are sequentially connected to form a remote unit uplink.
In an embodiment of the present utility model, the downlink specific connection manner of the near-end unit is: the combining module 1 and the combining module 2 are respectively connected with the optical splitter through the bridge 1, the broadband laser 1 and the WDM 1; the uplink specific connection mode of the near-end unit is as follows: the optical splitter is connected with the bridge 1 through the WDM1 and the broadband detector 1, and the bridge 1 is respectively connected with the combiner module 1 and the combiner module 2.
In an embodiment of the present utility model, the downlink specific connection manner of the remote unit is: the WDM2 is respectively connected with the branching module 1 and the branching module 2 through the broadband detector 2 and the bridge 2, and the branching module 1 and the branching module 2 are respectively connected with the multiplexer through the power amplification/low noise integrated modules 1 to N and the power amplification/low noise integrated modules n+1 to M; the uplink specific connection mode of the remote unit is as follows: the multiplexer is connected with the branching module 1 and the branching module 2 through the power amplification/low noise integrated modules 1 to N and the power amplification/low noise integrated modules N+1 to M respectively, and the branching module 1 and the branching module 2 are connected with the WDM2 through the bridge 2 and the broadband laser 2 respectively.
In an embodiment of the present utility model, 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.
Compared with the prior art, the utility model has the following beneficial effects: the near-end unit of the utility model couples the downlink wireless signals of the base station in a direct coupling mode and combines the downlink wireless signals of the base station into the downlink wireless signals of the broadband base station, then converts the downlink wireless signals into optical signals with single wavelength, transmits the optical signals to the far-end unit through the optical fiber, restores the optical signals with single wavelength transmitted by the near-end unit into the downlink wireless signals with broadband, and then completes coverage of coverage areas 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 transmits the broadband uplink wireless signal back to the information source equipment. The system has the advantages of simple structure, low cost and the like.
Drawings
Fig. 1 is a schematic diagram of the system of the present utility model.
Fig. 2 is a block diagram of a system application of the present utility model.
Detailed Description
The technical scheme of the utility model is specifically described below with reference to the accompanying drawings.
As shown in fig. 1, the present utility model provides a low-cost 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 combining module 1, a combining module 2, an electric bridge 1, a broadband laser 1, a broadband detector 1, a WDM1 and an optical splitter; the combining module 1, the combining module 2, the bridge 1, the broadband laser 1, the WDM1 and the optical splitter are sequentially connected to form a near-end unit downlink; the optical splitter, the WDM1, the broadband detector 1, the bridge 1, the combiner module 1 and the combiner module 2 are sequentially connected to form a near-end unit uplink;
The remote unit comprises WDM2, a broadband laser 2, a broadband detector 2, an electric bridge 2, a branching module 1, a branching module 2, power amplification/low noise integrated modules 1 to N, power amplification/low noise integrated modules n+1 to M and a multiplexer which are connected with the optical branching device; the WDM2, the broadband detector 2, the bridge 2, the branching module 1, the branching module 2, the power amplification/low noise integrated modules 1 to N, the power amplification/low noise integrated modules N+1 to M and the multiplexer are sequentially connected to form a remote unit downlink, and the multiplexer, the power amplification/low noise integrated modules 1 to N, the power amplification/low noise integrated modules N+1 to M, the branching module 1, the branching module 2, the bridge 2, 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 utility model. 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 specific implementation principle of the utility model is as follows:
Downlink link: the near-end unit is coupled with a base station downlink wireless signal through a direct coupling mode, the base station downlink wireless signal enters a combining module 1 and a combining module 2 of the near-end unit and then enters a bridge 1 after being combined respectively, the base station downlink wireless signal is combined into a downlink wireless signal in a 700-3700MHz frequency band range, the downlink wireless signal in the 700-3700MHz frequency band range enters a broadband laser 1, the broadband laser 1 converts the downlink wireless signal in the 700-3700MHz frequency band range into an optical signal of lambda 1 (single wavelength), the lambda 1 optical signal enters an optical splitter through the WDM1, the lambda 1 optical signal is divided into multiple paths of optical signals to be transmitted to a plurality of far-end units through optical fibers, the lambda 1 optical signal transmitted by the near-end unit enters a broadband detector 2 through the WDM2 of the far-end unit, the broadband detector 2 converts the lambda 1 optical signal into a downlink wireless signal in the 700-3700MHz frequency band range, the downlink wireless signal enters the splitting module 1 and the splitting module 2 through the bridge 3700, the splitting module 1 and the splitting module 2 split the downlink wireless signal in the 700-3700MHz frequency band range, for example, the lambda 1 optical signals are decomposed into the optical signals of 700MHz, 800MHz, 1800MHz, and the like, and the corresponding radio signals enter a radio coverage area of a radio frequency band of a radio amplifier and a radio coverage area of a radio frequency band of a radio amplifier is formed after the corresponding to be re-amplified by the radio frequency band of the radio amplifier, and the radio signals of the radio frequency band of the radio communication device.
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, the uplink wireless signals enter a branching module 1, the branching module 2 is combined and then enter an uplink wireless signal in the 700-3700MHz frequency range which is synthesized again through a bridge 2, the uplink wireless signals in the 700-3700MHz frequency range enter a broadband laser 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, the WDM1 and the broadband detector 1, the uplink wireless signal in the 700-3700MHz frequency band range is respectively sent into the combining module 1 and the combining module 2 through the bridge 1, and the combining module 1 and the combining module 2 respectively decompose 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 a corresponding base station.
The above is a preferred embodiment of the present utility model, and all changes made according to the technical solution of the present utility model belong to the protection scope of the present utility model when the generated functional effects do not exceed the scope of the technical solution of the present utility model.
Claims (4)
1. A low-cost broadband backhaul system, comprising 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 combining module 1, a combining module 2, an electric bridge 1, a broadband laser 1, a broadband detector 1, a WDM1 and an optical splitter; the combining module 1, the combining module 2, the bridge 1, the broadband laser 1, the WDM1 and the optical splitter are sequentially connected to form a near-end unit downlink; the optical splitter, the WDM1, the broadband detector 1, the bridge 1, the combiner module 1 and the combiner module 2 are sequentially connected to form a near-end unit uplink;
The remote unit comprises WDM2, a broadband laser 2, a broadband detector 2, an electric bridge 2, a branching module 1, a branching module 2, power amplification/low noise integrated modules 1 to N, power amplification/low noise integrated modules n+1 to M and a multiplexer which are connected with the optical branching device; the WDM2, the broadband detector 2, the bridge 2, the branching module 1, the branching module 2, the power amplification/low noise integrated modules 1 to N, the power amplification/low noise integrated modules N+1 to M and the multiplexer are sequentially connected to form a remote unit downlink, and the multiplexer, the power amplification/low noise integrated modules 1 to N, the power amplification/low noise integrated modules N+1 to M, the branching module 1, the branching module 2, the bridge 2, the broadband laser 2 and the WDM2 are sequentially connected to form a remote unit uplink.
2. The low cost broadband backhaul system of claim 1, wherein the near-end unit downlink specific connection is: the combining module 1 and the combining module 2 are respectively connected with the optical splitter through the bridge 1, the broadband laser 1 and the WDM 1; the uplink specific connection mode of the near-end unit is as follows: the optical splitter is connected with the bridge 1 through the WDM1 and the broadband detector 1, and the bridge 1 is respectively connected with the combiner module 1 and the combiner module 2.
3. The low cost broadband backhaul system of claim 1, wherein the remote unit downlink specific connection is: the WDM2 is respectively connected with the branching module 1 and the branching module 2 through the broadband detector 2 and the bridge 2, and the branching module 1 and the branching module 2 are respectively connected with the multiplexer through the power amplification/low noise integrated modules 1 to N and the power amplification/low noise integrated modules n+1 to M; the uplink specific connection mode of the remote unit is as follows: the multiplexer is connected with the branching module 1 and the branching module 2 through the power amplification/low noise integrated modules 1 to N and the power amplification/low noise integrated modules N+1 to M respectively, and the branching module 1 and the branching module 2 are connected with the WDM2 through the bridge 2 and the broadband laser 2 respectively.
4. The low-cost 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 to single wavelength optical signals, and the broadband detectors 1 and 2 are capable of converting the single wavelength optical signals to the wireless signals in the 700-3700MHz frequency band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321689280.2U CN220935189U (en) | 2023-06-30 | 2023-06-30 | Low-cost broadband return system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321689280.2U CN220935189U (en) | 2023-06-30 | 2023-06-30 | Low-cost broadband return system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220935189U true CN220935189U (en) | 2024-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321689280.2U Active CN220935189U (en) | 2023-06-30 | 2023-06-30 | Low-cost broadband return system |
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| Country | Link |
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| CN (1) | CN220935189U (en) |
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2023
- 2023-06-30 CN CN202321689280.2U patent/CN220935189U/en active Active
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