CN114584158A - 5G NR frequency shift double-channel MIMO power self-balancing system - Google Patents
5G NR frequency shift double-channel MIMO power self-balancing system Download PDFInfo
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- H—ELECTRICITY
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- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
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- H—ELECTRICITY
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- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
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- H—ELECTRICITY
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- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
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- H04B1/04—Circuits
- H04B1/0458—Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages
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- H—ELECTRICITY
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- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
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- H04B1/16—Circuits
- H04B1/30—Circuits for homodyne or synchrodyne receivers
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- H—ELECTRICITY
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- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
- H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
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- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/10—Polarisation diversity; Directional diversity
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points
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- H—ELECTRICITY
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- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0491—Circuits with frequency synthesizers, frequency converters or modulators
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/30—Circuits for homodyne or synchrodyne receivers
- H04B2001/307—Circuits for homodyne or synchrodyne receivers using n-port mixer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention provides a 5G NR frequency shift double-channel MIMO power self-balancing system, which comprises: the system comprises a 5G single-path frequency conversion near-end machine and a 5G single-path frequency conversion far-end machine; the 5G single-path frequency conversion near-end machine comprises a first single chip microcomputer, a first input detection module, a clock synchronization module, a first frequency mixer and a first multifunctional device; the 5G single-channel frequency conversion remote terminal comprises a second single chip microcomputer, an FPGA synchronous module, a second input detection module, a clock chip, a second frequency mixer, a second multiplexer and an output detection module. Because the invention adds the input detection module and the output detection module, the automatic adjustment is carried out according to the insertion loss value of the passive path, the double-path MIMO power self-balance of the active path and the passive path at the far end is realized, the adjustment is more accurate, and the MIMO effect is more ideal.
Description
Technical Field
The invention relates to the field of 5G communication equipment, in particular to a 5G NR frequency shift double-channel MIMO power self-balancing system.
Background
With the large-scale construction of 5G, the high-frequency band propagation loss of the 5G network is large. The existing network can not meet the requirements of 3.5G and above of a 5G network because the original antenna feeder supports 2.7G at most. The existing network can not meet the MIMO requirement of the 5G network by the original single antenna feeder, the 5G is generally limited by a device at a high frequency band of 3.5G or above, and the existing network can not be smoothly upgraded to the 5G network by the 2G, 3G and 4G networks. If the feeder supporting 3.5G or more is directly adopted, the cable needs to be redeployed, the cost of the cable is high, and the transmission loss is large.
The dual channel Multiple Input Multiple Output (MIMO) power generally requires a difference within 3dB, otherwise the MIMO effect is affected. The conventional practice is to achieve far-end output power balance by changing the input signal magnitude of the near-end dual input end through manual intervention, such as attenuation.
Disclosure of Invention
The purpose of the invention is realized by the following technical scheme.
A 5G NR frequency shifted dual MIMO power self-balancing system comprising:
the system comprises a 5G single-path frequency conversion near-end machine and a 5G single-path frequency conversion far-end machine; wherein,
the 5G single-channel frequency conversion near-end machine comprises a first single chip microcomputer, a first input detection module, a clock synchronization module, a first frequency mixer and a first multifunctional device; the first single chip microcomputer, the clock synchronization module and the first frequency mixer are connected with one another in pairs, the first input detection module is connected with the first single chip microcomputer, and the output end of the first frequency mixer is connected with the input end of the first multiplexer; the output end of the first multifunctional device is connected with a second multifunctional device in the 5G single-path frequency conversion remote terminal;
the 5G single-channel frequency conversion remote terminal comprises a second single chip microcomputer, an FPGA synchronization module, a second input detection module, a clock chip, a second frequency mixer, a second multiplexer and an output detection module; the second mixer, the second single chip microcomputer, the clock chip and the FGPA synchronous module are connected with each other pairwise, the second input detection module and the output detection module are connected with the second single chip microcomputer, and the output end of the second multifunctional device is connected with the input end of the second mixer.
Furthermore, the input end of the first mixer is connected to the first path of 3.5G radio frequency input signal, and two output ends of the first mixer are connected to two input ends of the first multiplexer in a one-to-one correspondence manner, and output 1.1G and 1.3G radio frequency signals respectively.
Furthermore, the third input end of the first multiplexer is connected with the second path of 3.5G radio frequency input signal, and the output end of the first multiplexer is connected with the second multiplexer in the 5G single-path frequency conversion remote terminal and outputs the mixed output signals of 1.1G, 1.3G and 3.5G.
Furthermore, the input end of the first input detection module is connected with the first path of 3.5G radio frequency input signal and the second path of 3.5G radio frequency input signal, and the output end of the first input detection module is connected with the first single chip microcomputer.
Furthermore, the input end of the second input detection module is connected with the output end of the first multifunctional device, and the output end of the second input detection module is connected with the second single chip microcomputer.
Further, the second multiplexer includes three output ends, which respectively output 1.1G, 1.3G and the second path of 3.5G radio frequency output signals, wherein the 1.1G and 1.3G radio frequency output signals are connected to two input ends of the second mixer one by one, and the output end of the second mixer outputs the first path of 3.5G radio frequency output signal.
Further, the output detection module is respectively connected with the second single chip microcomputer, the output end of the second mixer, and the output end of the second path of 3.5G radio frequency output signal of the second multiplexer.
Further, the 5G single-path frequency conversion near-end machine supplies power to the 5G single-path frequency conversion far-end machine through feeding.
Furthermore, the 5G single-path frequency conversion remote terminal integrates a dual-polarized antenna.
Further, a POE external power supply mode is adopted to supply power to the 5G single-path frequency conversion remote terminal.
The invention has the advantages that:
because the invention adds the input detection module and the output detection module, the automatic adjustment is carried out according to the insertion loss value of the passive path, the self-balance of the two-path MIMO power of the active path and the passive path at the far end is realized, the adjustment is more accurate, and the MIMO effect is more ideal.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 shows a schematic diagram of a 5G NR frequency-shift dual-path MIMO power self-balancing system according to embodiment 1 of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The invention provides a 5G NR frequency shift double-channel MIMO power self-balancing system, which realizes the self-balancing of MIMO power.
Example 1
As shown in fig. 1, according to embodiment 1 of the present invention, a 5G NR frequency-shift dual-channel MIMO power self-balancing system is provided, which includes:
the system comprises a 5G single-path frequency conversion near-end machine and a 5G single-path frequency conversion far-end machine; wherein,
the 5G single-channel frequency conversion near-end machine comprises a first single chip microcomputer, a first input detection module, a clock synchronization module, a first frequency mixer and a first multi-function device; the first frequency mixer is connected with a first path of 3.5G radio frequency input signal and is connected with the first single chip microcomputer and the clock synchronization module, and two output ends of the first frequency mixer are connected with two input ends of the first multifunctional device in a one-to-one correspondence mode and respectively output 1.1G and 1.3G radio frequency signals; the third input end of the first multiplexer is connected with the second path of 3.5G radio frequency input signals, and the output end of the first multiplexer is connected with the second multiplexer in the 5G single-path frequency conversion remote terminal and outputs 1.1G, 1.3G and 3.5G radio frequency output signals. The input end of the input detection module is connected with the first path of 3.5G radio frequency input signal and the second path of 3.5G radio frequency input signal, and the output end of the input detection module is connected with the first single chip microcomputer. The first single chip microcomputer is also connected with a clock synchronization module.
The 5G single-channel frequency conversion remote terminal comprises a second single chip microcomputer, an FPGA synchronization module, a second input detection module, a clock chip, a second frequency mixer, a second multiplexer and an output detection module; the input end of the second input detection module is connected with the output end of the first multifunctional device, and the output end of the second input detection module is connected with the second single chip microcomputer. The second multiplexer comprises three output ends which respectively output 1.1G, 1.3G and a second path of 3.5G radio frequency output signals, wherein the 1.1G and 1.3G radio frequency output signals are connected with two input ends of the second frequency mixer one by one. The second mixer, the second single chip microcomputer, the clock chip and the FGPA synchronous module are connected with each other pairwise, and the output end of the second mixer outputs a first path of 3.5G radio frequency output signal.
The output detection module is respectively connected with the second singlechip, the output end of the second mixer and the output end of the second path of 3.5G radio frequency output signal of the second multiplexer.
The detection result of the first input detection module is input into the first single chip microcomputer, the detection results of the second input detection module and the output detection module are input into the second single chip microcomputer, and the single chip microcomputer performs balance adjustment according to the detection results.
The first input detection module, the second input detection module, the output detection module, the FPGA synchronization module, the clock chip and the single chip microcomputer in the invention can adopt various implementation modes such as a chip, a single chip microcomputer, an FPGA, a detection circuit and the like, and the specific hardware implementation forms are common choices in various prior art, so that the detailed description is omitted.
It should be noted that, in this embodiment 1, the 5G single-channel frequency conversion far-end machine is powered by the 5G single-channel frequency conversion near-end machine through feeding.
According to the preferred embodiment of the invention, more 5G single-channel frequency conversion remote terminals can be included.
According to the preferred embodiment of the invention, the 5G single-channel frequency conversion remote terminal integrates a dual-polarized antenna.
According to the preferred embodiment of the invention, a POE external power supply mode can also be adopted to supply power to the 5G single-channel frequency conversion remote terminal.
When the system works, the insertion loss of the device link is mainly referred to a passive link, the allowed insertion loss value of a link from a near end to a far end is within 30dB, the far end output power is checked through a WEB OMT (WEB-OMT: a network management system integrating repeater monitoring and network optimization into a whole), and when the far end output is within 15dB, a far end active end performs automatic adjustment according to the collected passive end power, so that the MIMO with balanced power is realized.
It should be noted that:
in the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several systems, several of these systems may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A5G NR frequency-shift dual-path MIMO power self-balancing system is characterized by comprising:
the system comprises a 5G single-path frequency conversion near-end machine and a 5G single-path frequency conversion far-end machine; wherein,
the 5G single-channel frequency conversion near-end machine comprises a first single chip microcomputer, a first input detection module, a clock synchronization module, a first frequency mixer and a first multifunctional device; the first single chip microcomputer, the clock synchronization module and the first frequency mixer are connected with one another in pairs, the first input detection module is connected with the first single chip microcomputer, and the output end of the first frequency mixer is connected with the input end of the first multiplexer; the output end of the first multifunctional device is connected with a second multifunctional device in the 5G single-path frequency conversion remote terminal;
the 5G single-channel frequency conversion remote terminal comprises a second single chip microcomputer, an FPGA synchronization module, a second input detection module, a clock chip, a second frequency mixer, a second multiplexer and an output detection module; the second mixer, the second single chip microcomputer, the clock chip and the FGPA synchronous module are connected with each other pairwise, the second input detection module and the output detection module are connected with the second single chip microcomputer, and the output end of the second multifunctional device is connected with the input end of the second mixer.
2. The MIMO power self-balancing system of 5G NR frequency-shifting duplex according to claim 1,
the input end of the first frequency mixer is connected with a first path of 3.5G radio frequency input signal, and two output ends of the first frequency mixer are connected with two input ends of the first multifunctional device in a one-to-one correspondence mode and respectively output 1.1G and 1.3G radio frequency signals.
3. The MIMO power self-balancing system of 5G NR frequency-shifting duplex according to claim 2,
and the third input end of the first multiplexer is connected with the second path of 3.5G radio frequency input signal, and the output end of the first multiplexer is connected with the second multiplexer in the 5G single-path frequency conversion remote terminal and outputs 1.1G, 1.3G and 3.5G mixing output signals.
4. The MIMO power self-balancing system of 5G NR frequency-shifting duplex according to claim 3,
the input end of the first input detection module is connected with the first path of 3.5G radio frequency input signal and the second path of 3.5G radio frequency input signal, and the output end of the first input detection module is connected with the first single chip microcomputer.
5. The MIMO power self-balancing system of 5G NR frequency-shifting duplex according to claim 1,
the input end of the second input detection module is connected with the output end of the first multifunctional device, and the output end of the second input detection module is connected with the second single chip microcomputer.
6. The MIMO power self-balancing system of 5G NR frequency-shifting duplex according to claim 5,
the second multiplexer comprises three output ends which respectively output 1.1G, 1.3G and a second path of 3.5G radio frequency output signals, wherein the 1.1G and 1.3G radio frequency output signals are connected with two input ends of the second frequency mixer one by one, and the output end of the second frequency mixer outputs the first path of 3.5G radio frequency output signals.
7. The MIMO power self-balancing system of 5G NR frequency shift duplex according to claim 5 or 6,
the output detection module is respectively connected with the second singlechip, the output end of the second frequency mixer and the output end of the second path of 3.5G radio frequency output signal of the second multiplexer.
8. The MIMO power self-balancing system of 5G NR frequency-shifting duplex according to claim 1 or 2,
and the 5G single-path frequency conversion near-end machine supplies power to the 5G single-path frequency conversion far-end machine through feeding.
9. The MIMO power self-balancing system of 5G NR frequency-shifting duplex according to claim 1 or 2,
and the 5G single-path frequency conversion remote terminal integrates a dual-polarized antenna.
10. The MIMO power self-balancing system of 5G NR shift frequency duplex according to claim 1 or 2,
and a POE external power supply mode is adopted to supply power to the 5G single-path frequency conversion remote terminal.
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| CN117336766A (en) * | 2023-09-28 | 2024-01-02 | 北京唯得科技有限公司 | Operation monitoring method and system of 5G MIMO frequency-shifting two-way system |
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