A broadband sub-band equalization adjustment amplifying device

Abstract

The utility model relates to a broadband subband equalization adjustment amplifier device belongs to wireless communication field, the device, 1. including downlink and uplink, wherein: downlink, including the downlink low noise amplifier, first down conversion module, first analog-digital conversion module, downlink digital frequency selection filter module, downlink subband power regulation module, first multi -subband switch module, downlink digital combining module, first digital analog conversion module, first frequency conversion module, downlink broadband power amplifier module that connect in proper order, uplink, including the uplink low noise amplifier, second down conversion module, second analog-digital conversion module, uplink digital frequency selection filter module, uplink subband power regulation module, second multi -subband switch module, uplink digital combining module, second digital analog conversion module, second frequency conversion module, uplink broadband power amplifier module that connect in proper order, the utility model discloses device structure is simple, and the cost is low.

Description

Technical Field

[0001] This utility model belongs to the field of wireless communication, and specifically relates to a wideband subband equalization adjustment and amplification device. Background Technology

[0002] With the increasing number of co-construction and sharing scenarios, the demand for broadband multi-mode equipment is growing. There is an urgent need for a broadband sub-band equalization and amplification device that can provide more flexible signal source selection, broadband amplification, and adjustable and controllable signals in each sub-band within the broadband range. This would enable a wider range of applications, shorten the construction cycle, and provide new solutions for co-construction and sharing application scenarios. Utility Model Content

[0003] The purpose of this invention is to provide a wideband subband equalization and amplification device that offers more flexible source selection, enables wideband amplification, and allows for adjustable and controllable subband signals within the wideband. It also features a short construction period, simple device structure, and low cost.

[0004] To achieve the above objectives, the technical solution of this utility model is: a wideband subband equalization adjustment and amplification device, comprising a downlink and an uplink, wherein: The downlink includes, in sequence, a downlink low-noise amplifier, a first downconversion module, a first analog-to-digital converter module, a downlink digital frequency selective filter module, a downlink subband power adjustment module, a first multi-subband switch module, a downlink digital combiner module, a first digital-to-analog converter module, a first upconversion module, and a downlink wideband power amplifier module; The uplink includes, in sequence, an uplink low-noise amplifier, a second downconverter module, a second analog-to-digital converter module, an uplink digital frequency selective filter module, an uplink subband power adjustment module, a second multi-subband switch module, an uplink digital combiner module, a second digital-to-analog converter module, a second upconverter module, and an uplink wideband power amplifier module.

[0005] Furthermore, the input of the downlink low-noise amplifier and the uplink wideband power amplifier module are respectively connected to the receiving antenna via the first duplexer.

[0006] Furthermore, the downlink wideband power amplifier module and the uplink low-noise amplifier are connected to the retransmission antenna via a second duplexer.

[0007] Furthermore, the receiving antenna uses air coupling to receive downlink broadband wireless signals.

[0008] Furthermore, the downlink broadband wireless signal is transmitted to the downlink after being broadband filtered by the first duplexer.

[0009] Furthermore, the retransmission antenna uses air coupling to receive uplink broadband wireless signals.

[0010] Furthermore, the uplink broadband wireless signal is transmitted to the uplink after being broadband filtered by the second duplexer.

[0011] Furthermore, the first multi-subband switch module includes three subband switches.

[0012] Furthermore, the second multi-subband switch module includes three subband switches.

[0013] Furthermore, the device can simultaneously amplify wireless signals from multiple operators, and under the condition of wideband amplification, it can divide the signals of each operator into different subbands through a downlink digital frequency selective filtering module or an uplink digital frequency selective filtering module, and control the switching of the subbands through a first multi-subband switching module and a second multi-subband switching module.

[0014] Compared with the prior art, the present invention has the following advantages: the present invention device is more flexible in selecting the signal source, has wideband amplification, and can adjust and control the signals of each subband within the wideband. It also has a short construction period, simple device structure, and low cost. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the circuit device of this utility model. Detailed Implementation

[0016] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] like Figure 1 As shown, this utility model discloses a wideband subband equalization and amplification device, comprising a downlink and an uplink, wherein: The downlink includes, in sequence, a downlink low-noise amplifier, a first downconversion module, a first analog-to-digital converter module, a downlink digital frequency selective filter module, a downlink subband power adjustment module, a first multi-subband switch module, a downlink digital combiner module, a first digital-to-analog converter module, a first upconversion module, and a downlink wideband power amplifier module; The uplink includes, in sequence, an uplink low-noise amplifier, a second downconverter module, a second analog-to-digital converter module, an uplink digital frequency selective filter module, an uplink subband power adjustment module, a second multi-subband switch module, an uplink digital combiner module, a second digital-to-analog converter module, a second upconverter module, and an uplink wideband power amplifier module.

[0018] The input of the downlink low-noise amplifier and the uplink wideband power amplifier module are respectively connected to the receiving antenna via the first duplexer.

[0019] The downlink wideband power amplifier module and the uplink low-noise amplifier are connected to the retransmission antenna via a second duplexer.

[0020] In this example, the receiving antenna uses air coupling to receive downlink broadband wireless signals, which are then transmitted to the downlink after being broadband filtered by the first duplexer.

[0021] In this example, the retransmission antenna receives uplink broadband wireless signals via air coupling and transmits them to the uplink after broadband filtering by the second duplexer.

[0022] In this example, both the first multi-sub-band switch module and the second multi-sub-band switch module include three sub-band switches.

[0023] like Figure 1 As shown, the working principle of this utility model device is as follows: Downlink: The receiving antenna receives downlink broadband wireless signals via air coupling. After being filtered by a duplexer, the signals enter a downlink low-noise amplifier for low-noise amplification before entering downconversion module 1. The downconversion is performed to intermediate frequency (IF) or zero frequency, then the signals enter analog-to-digital converter (ADC1) to convert them into downlink broadband digital signals. These signals then enter the downlink digital frequency selective filter module. This module decomposes the downlink broadband digital signal into multiple sub-bands according to actual needs. For example, the FDD1800 downlink broadband signal is 1805-1880MHz. Based on the operator, this is decomposed into sub-band 1 (China Mobile) 1805-1830MHz, sub-band 2 (China Unicom) 1830-1860MHz, and sub-band 3 (China Telecom) 1860-1880MHz. Sub-bands 1, 2, and 3 then enter the downlink sub-band power adjustment module to adjust the power level of each sub-band. During air coupling, the received signals... Since the operator's signal levels are inconsistent, after adjustment by the downlink sub-band power adjustment module, the power levels of each sub-band are consistent. Sub-band 1, sub-band 2, and sub-band 3, after gain adjustment, enter the downlink digital combiner module through sub-band switch 1, sub-band switch 2, and sub-band switch 3, respectively. The sub-band switches can open or close the sub-band signals according to actual needs. The downlink digital combiner module combines all the incoming sub-band signals into a downlink broadband digital signal. The combined downlink broadband digital signal can be a downlink broadband digital signal that includes all sub-bands or a downlink broadband digital signal that does not include all sub-bands. The combined downlink broadband digital signal enters the digital-to-analog converter module (DAC1), which converts it into an intermediate frequency downlink broadband wireless signal and enters the upconversion module 1. The upconverted downlink broadband wireless signal is amplified by the downlink broadband power amplifier module and then enters the duplexer. After filtering by the duplexer, the signal coverage is completed by the retransmission antenna.

[0024] Uplink: The retransmit antenna receives the uplink broadband wireless signal via air coupling. After being filtered by a duplexer, it enters the uplink low-noise amplifier for low-noise amplification and then enters the downconversion module 2. The downconversion is performed to intermediate frequency (IF) or zero frequency, then the signal enters the analog-to-digital converter (ADC2) to be converted into an uplink broadband digital signal. This signal then enters the uplink digital frequency selective filter module. The uplink digital frequency selective filter module decomposes the uplink broadband digital signal into multiple sub-bands according to actual needs. For example, the FDD1800 uplink broadband signal is 1710-1785MHz. Based on the operator, it is decomposed into sub-band 1 (China Mobile) 1710-1735MHz, sub-band 2 (China Unicom) 1735-1765MHz, and sub-band 3 (China Telecom) 1765-1785MHz. Sub-bands 1, 2, and 3 then enter the uplink sub-band power adjustment module to adjust the power level of each sub-band. During air coupling, the received signals... Since the operator's signal levels are inconsistent, after adjustment by the downlink sub-band power adjustment module, the power levels of each sub-band are consistent. Sub-band 1, sub-band 2, and sub-band 3, after gain adjustment, enter the uplink digital combiner module through sub-band switch 1, sub-band switch 2, and sub-band switch 3, respectively. The sub-band switches can open or close the sub-band signals according to actual needs. The uplink digital combiner module combines all the incoming sub-band signals into an uplink broadband digital signal. The combined uplink broadband digital signal can be an uplink broadband digital signal that includes all sub-bands or an uplink broadband digital signal that does not include all sub-bands. The combined uplink broadband digital signal enters the digital-to-analog converter module (DAC2), which converts it to an intermediate frequency uplink broadband wireless signal and enters the upconversion module 2. The upconverted uplink broadband wireless signal is amplified by the uplink broadband power amplifier module and then enters the duplexer. After filtering by the duplexer, it is transmitted back to the source device through the receiving antenna.

[0025] The above are preferred embodiments of this utility model. Any changes made to the technical solution of this utility model that do not exceed the scope of the technical solution of this utility model shall be protected within the scope of this utility model.

Claims

1. A wideband subband equalization and amplification device, characterized in that, Including downlink and uplink, where: The downlink includes, in sequence, a downlink low-noise amplifier, a first downconversion module, a first analog-to-digital converter module, a downlink digital frequency selective filter module, a downlink subband power adjustment module, a first multi-subband switch module, a downlink digital combiner module, a first digital-to-analog converter module, a first upconversion module, and a downlink wideband power amplifier module; The uplink includes, in sequence, an uplink low-noise amplifier, a second downconverter module, a second analog-to-digital converter module, an uplink digital frequency selective filter module, an uplink subband power adjustment module, a second multi-subband switch module, an uplink digital combiner module, a second digital-to-analog converter module, a second upconverter module, and an uplink wideband power amplifier module.

2. The broadband sub-band equalization adjustment and amplification device according to claim 1, characterized in that, The input of the downlink low-noise amplifier and the uplink wideband power amplifier module are respectively connected to the receiving antenna via the first duplexer.

3. The broadband sub-band equalization adjustment and amplification device according to claim 1, characterized in that, The downlink wideband power amplifier module and the uplink low-noise amplifier are connected to the retransmission antenna via a second duplexer.

4. The broadband sub-band equalization adjustment and amplification device according to claim 2, characterized in that, The receiving antenna uses air coupling to receive downlink broadband wireless signals.

5. The broadband sub-band equalization adjustment and amplification device according to claim 4, characterized in that, The downlink broadband wireless signal is transmitted to the downlink after being broadband filtered by the first duplexer.

6. The broadband sub-band equalization adjustment and amplification device according to claim 3, characterized in that, The retransmit antenna uses air coupling to receive uplink broadband wireless signals.

7. The broadband sub-band equalization and amplification device according to claim 6, characterized in that, The uplink broadband wireless signal is transmitted to the uplink after being broadband filtered by the second duplexer.

8. The broadband sub-band equalization and amplification device according to claim 1, characterized in that, The first multi-subband switch module includes three subband switches.

9. A broadband sub-band equalization adjustment and amplification device according to claim 1, characterized in that, The second multi-subband switch module includes three subband switches.

10. A broadband subband equalization and amplification device according to claim 1, characterized in that, The device can simultaneously amplify wireless signals from multiple operators over a wideband. Under the condition of wideband amplification, it can divide the signals of each operator into different subbands through a downlink digital frequency selective filtering module or an uplink digital frequency selective filtering module, and control the switching of the subbands through a first multi-subband switching module and a second multi-subband switching module.

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