CN114071486B - Radio frequency signal coverage wireless communication equipment based on 4T4R single-wire transmission - Google Patents
Radio frequency signal coverage wireless communication equipment based on 4T4R single-wire transmission Download PDFInfo
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- CN114071486B CN114071486B CN202210044404.5A CN202210044404A CN114071486B CN 114071486 B CN114071486 B CN 114071486B CN 202210044404 A CN202210044404 A CN 202210044404A CN 114071486 B CN114071486 B CN 114071486B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
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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
- H04B7/04—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
- 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
- H04W88/085—Access point devices with remote components
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Abstract
The invention relates to the technical field of wireless communication, in particular to radio frequency signal coverage wireless communication equipment based on 4T4R single-wire transmission. It includes 5G core network, 5G baseband and extension unit, the output of 5G core network is connected with the input of 5G baseband, the output of 5G baseband is connected with the input of extension unit, its characterized in that: the output end of the expansion unit is connected with an expansion ERU, and the output end of the expansion ERU is connected with an enhancement DRU. The frequency conversion and combination of radio frequency signals are realized by the matching of the arranged radio frequency units, the extended ERU and the enhanced DRU, so that the use number of digital chips is reduced, the hardware cost is lower, the supply chain is more guaranteed, the extended ERU can also utilize a single feeder line of an original indoor distribution system to hang eight enhanced DRU units for extending and covering, and the covering area is more than 8 times of that of a conventional 5G remote unit on the basis of realizing the transmission of a 5G signal of 4T4R by the single feeder line.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to radio frequency signal coverage wireless communication equipment based on 4T4R single-wire transmission.
Background
Each operator in China immediately develops large-scale construction of 5G macro stations, but the indoor signal coverage difficulty is greatly increased compared with 4G due to the particularity of a 5G frequency band, and various problems such as construction difficulty, investment cost, coverage effect and the like are increasingly prominent.
The indoor coverage of current domestic operator mainly still adopts traditional DAS to solve the indoor coverage problem, and traditional DAS mainly adopts passive device, and the industrial chain is ripe, has that the investment is little, the fault rate is low, the system is simple effective, later stage can carry out advantages such as multisystem dilatation through the combiner.
However, with the gradual popularization of 5G, the 5G network adopts the MIMO technology (same frequency and multiple streams, 85% of the current network scenes are single-cable single-stream systems), and the user changes the mobile services such as rate and capacity, and the traditional DAS faces huge challenges.
Therefore, it is desirable to provide radio frequency signal coverage for wireless communication devices based on 4T4R single wire transmission.
Disclosure of Invention
The present invention aims to provide a radio frequency signal coverage wireless communication device based on 4T4R single wire transmission to solve the problems in the background art.
In order to achieve the above object, a radio frequency signal coverage wireless communication device based on 4T4R single-wire transmission is provided, including a 5G core network, a 5G baseband and an extension unit, where an output end of the 5G core network is connected with an input end of the 5G baseband, and an output end of the 5G baseband is connected with an input end of the extension unit, and the radio frequency signal coverage wireless communication device is characterized in that: the output end of the extension unit is connected with an extension ERU, the output end of the extension ERU is connected with an enhanced DRU, wherein:
the extended ERU and enhanced DRU are used to control the state of the 5G radio frequency signal.
As a further improvement of the present technical solution, the extended ERU includes an extended antenna, a synthesizer, a main control unit, a clock module, and a power supply unit, wherein:
the output end of the main control unit is connected with the input end of the synthesizer;
the input end of the synthesizer is also connected with a frequency conversion group;
the extended antenna is connected with the frequency conversion group and the synthesizer;
the input ends of the frequency conversion group and the synthesizer are also connected with a clock module;
and the output end of the power supply unit is connected with the synthesizer and the main control unit.
As a further improvement of the technical solution, the frequency conversion group includes frequency conversion units a1, B1 and C1, and output ends of the frequency conversion units a1, B1 and C1 are all connected to the synthesizer, wherein:
the expansion antenna comprises four antenna ends, three antenna ends of the expansion antenna are respectively connected with frequency conversion units A1, B1 and C1, the frequency conversion units A1, B1 and C1 are used for carrying out frequency conversion on 5G radio frequency signals received by the antenna ends, and the other antenna end is connected with the synthesizer and used for transmitting original 5G radio frequency signals;
the synthesizer is used for combining the 5G radio frequency signals after the frequency conversion of the frequency conversion units A1, B1 and C1 and the original 5G radio frequency signals into RF signals to be output.
As a further improvement of the present technical solution, four antenna terminals of the extension antenna are respectively connected with switches a2, B2, C2 and D, wherein:
the output ends of the switches A2, B2 and C2 are respectively connected with frequency conversion units A1, B1 and C1;
and the output end of the switching circuit D is connected with the synthesizer.
As a further improvement of the present solution, the switches a2, B2, C2 and D each include a bridge, a switch and an expansion amplifier, wherein:
the bridge is used for receiving and outputting 5G radio frequency signals;
the two expansion amplifiers are connected with the electric bridge through a switch.
As a further improvement of the present technical solution, the clock module includes a left clock circuit and a right clock circuit, the left clock circuit and the right clock circuit and the frequency conversion units a1, B1, and C1 form an enhanced DRU, the enhanced DRU further includes an enhanced antenna, and the left clock circuit and the right clock circuit are respectively provided with a time division switch, a filter, and an enhanced amplifier, wherein:
the filters and the enhanced amplifiers are provided with two groups which are respectively positioned at the output end and the input end of the frequency conversion units A1, B1 and C1;
the time division switch in the left clock circuit is connected with a frequency divider arranged in the synthesizer;
and the time division switch in the right clock circuit is connected with the enhanced antenna.
As a further improvement of the present technical solution, a controller, an up-mixer and a down-mixer are disposed in each of the frequency conversion units a1, B1 and C1, wherein:
the input end of the controller is connected with a reference clock;
and the upper mixer and the lower mixer are both provided with an IN port and an OUT port.
As a further improvement of the technical solution, the 5G core network, the 5G baseband and the extension unit are all connected by optical fibers.
As a further improvement of the technical scheme, the expansion unit and the expansion ERU are connected through a photoelectric composite cable.
As a further improvement of the technical solution, eight enhanced DRUs are provided, and the extended ERU and the eight enhanced DRUs are connected by a feeder cable.
Compared with the prior art, the invention has the beneficial effects that:
in this radio frequency signal based on 4T4R single line transmission covers wireless communication equipment, realize radio frequency signal's frequency conversion and combiner through the radio frequency unit that sets up and extension ERU and reinforcing DRU cooperation, thereby reduce digital chip's use quantity, the hardware cost is lower, the supply chain is more secure, and extension ERU itself can also make use of under the single feeder of original room subsystem eight reinforcing DRU units of hanging to extend and cover, on the 5G signal basis of realizing single feeder transmission 4T4R, the area of coverage is equivalent to more than 8 times of conventional 5G remote end unit area of coverage, construction cost can further reduce in the engineering construction angle.
Drawings
FIG. 1 is a schematic diagram of the unit modules of the overall apparatus of the present invention;
FIG. 2 is a schematic diagram of one embodiment of an extended ERU module according to the present invention;
FIG. 3 is a schematic diagram of an enhanced DRU internal unit module of the present invention;
FIG. 4 is a schematic diagram of an internal unit module of the frequency conversion unit according to the present invention;
FIG. 5 is a second schematic diagram of the expanded ERU internal unit module according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to fig. 5, an object of the present embodiment is to provide a radio frequency signal coverage wireless communication device based on 4T4R single-wire transmission, including a 5G core network, a 5G baseband and an extension unit, wherein an output terminal of the 5G core network is connected to an input terminal of the 5G baseband, and an output terminal of the 5G baseband is connected to an input terminal of the extension unit, and the radio frequency signal coverage wireless communication device is characterized in that: the output of extension unit is connected with extension ERU, and the output of extension ERU is connected with the reinforcing DRU, wherein:
the extended ERU and enhanced DRU are used to control the state of the 5G radio frequency signals.
The working principle is as follows:
the method is divided into two specific working modes as follows,
in a downlink, a 5G baseband processes IP message data output by a 5G core network into a 5G digital signal and outputs the 5G digital signal to an extension unit, the extension unit distributes the received 5G digital signal to an extension ERU, the extension ERU processes the received 5G digital signal into a 5G radio frequency signal, the extension ERU is internally provided with a plurality of frequency conversion units, the plurality of frequency conversion units form a frequency conversion group, the frequency conversion group comprises frequency conversion units A1, B1 and C1 and is used for converting the 5G radio frequency signal into radio frequency signals of other different frequency bands and combining the radio frequency signals with the original 5G radio frequency signal through a synthesizer, the combined radio frequency signal is sent to an enhanced DRU through the same feeder line, and the enhanced DRU reduces the received radio frequency signal into the 5G radio frequency signal and transmits the 5G radio frequency signal together with other radio frequency signals through an enhanced antenna;
in an uplink, the enhanced DRU carries out frequency conversion processing on a 5G radio frequency signal received by an antenna as required to form a radio frequency signal in other frequency bands, the radio frequency signal is combined with a non-frequency-converted 5G signal through a synthesizer, the combined radio frequency signal is output to the extended ERU through the same feeder line, the extended ERU carries out processing on the radio frequency signal output by the enhanced DRU, the radio frequency signal is reduced to a 5G radio frequency signal and then converted to a 5G digital signal, the 5G digital signal is output to the extension unit, the extension unit forwards the received 5G digital signal to a 5G baseband, and the 5G baseband processes the received 5G digital signal to IP message data and sends the IP message data to a 5G core network.
It is worth mentioning that the extended ERU includes an extended antenna, a synthesizer, a main control unit, a clock module and a power supply unit, wherein:
the output end of the main control unit is connected with the input end of the synthesizer;
the input end of the synthesizer is also connected with a frequency conversion group;
the extension antenna is connected with the frequency conversion group and the synthesizer;
the input ends of the frequency conversion group and the synthesizer are also connected with a clock module;
the output end of the power supply unit is connected with the synthesizer and the main control unit.
Further, the frequency conversion group comprises frequency conversion units A1, B1 and C1, and the output ends of the frequency conversion units A1, B1 and C1 are all connected with the synthesizer, wherein:
the expansion antenna comprises four antenna ends, three antenna ends of the expansion antenna are respectively connected with frequency conversion units A1, B1 and C1, the frequency conversion units A1, B1 and C1 are used for carrying out frequency conversion on 5G radio frequency signals received by the antenna ends, and the other antenna end is connected with the synthesizer and used for transmitting original 5G radio frequency signals;
the synthesizer is used for combining the 5G radio frequency signals after the frequency conversion of the frequency conversion units A1, B1 and C1 with the original 5G radio frequency signals into RF signals to be output.
Still further, the four antenna terminals of the extension antenna are respectively connected with switches a2, B2, C2 and D, wherein:
the output ends of the switches A2, B2 and C2 are respectively connected with the frequency conversion units A1, B1 and C1;
the output end of the switching circuit D is connected with the synthesizer.
Specifically, switches a2, B2, and C2 and D each include a bridge, switches, and an expander amplifier, wherein:
the bridge is used for receiving and outputting 5G radio frequency signals;
the two expansion amplifiers are connected with the bridge through a switch.
In addition, the clock module comprises a left clock circuit and a right clock circuit, the left clock circuit and the right clock circuit and the frequency conversion units A1, B1 and C1 form an enhanced DRU, the enhanced DRU further comprises an enhanced antenna, and a time division switch, a filter and an enhanced amplifier are arranged in each of the left clock circuit and the right clock circuit, wherein:
the filters and the enhanced amplifiers are provided with two groups which are respectively positioned at the output end and the input end of the frequency conversion units A1, B1 and C1;
a time division switch in the left clock circuit is connected with a frequency divider arranged in the synthesizer;
and the time division switch in the right clock circuit is connected with the enhanced antenna.
It is worth mentioning that the output of the filter is provided with a booster amplifier to amplify the radio frequency signal.
Further, a controller, an up-mixer and a down-mixer are arranged in each of the frequency conversion units a1, B1 and C1, wherein:
the input end of the controller is connected with a reference clock;
the up mixer and the down mixer are both provided with an IN port and an OUT port.
Furthermore, the 5G core network, the 5G baseband and the extension unit are connected through optical fibers.
In addition, the expansion unit and the expansion ERU are connected through an optical-electrical composite cable.
In addition, the number of the enhanced DRUs is eight, the extended ERU and the eight enhanced DRUs are connected through the feeder cable, in the embodiment, the frequency conversion and the combination of radio frequency signals are realized through the matching of the arranged radio frequency units, the extended ERU and the enhanced DRUs, so that the use number of digital chips is reduced, the hardware cost is lower, the supply chain is more guaranteed, the extended ERU can also utilize eight enhanced DRU units hung under a single feeder of an original room subsystem to carry out extension coverage, on the basis of 5G signals for realizing the transmission of 4T4R by the single feeder, the coverage area is equivalent to more than 8 times of the coverage area of a conventional 5G remote unit, and the construction cost can be further reduced in the aspect of engineering construction.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. Radio frequency signal based on 4T4R single-wire transmission covers wireless communication equipment, including 5G core network, 5G baseband and extension unit, the output of 5G core network is connected with the input of 5G baseband, the output of 5G baseband is connected with the input of extension unit, its characterized in that: the output end of the extension unit is connected with an extension ERU, the output end of the extension ERU is connected with an enhanced DRU, wherein:
the extended ERU and the enhanced DRU are used for controlling the state of the 5G radio frequency signal;
the expansion ERU comprises an expansion antenna, a synthesizer, a main control unit, a clock module and a power supply unit, wherein:
the output end of the main control unit is connected with the input end of the synthesizer;
the input end of the synthesizer is also connected with a frequency conversion group;
the extended antenna is connected with the frequency conversion group and the synthesizer;
the input ends of the frequency conversion group and the synthesizer are also connected with a clock module;
the output end of the power supply unit is connected with the synthesizer and the main control unit,
the frequency conversion group comprises frequency conversion units A1, B1 and C1, the output ends of the frequency conversion units A1, B1 and C1 are all connected with a synthesizer, wherein:
the expansion antenna comprises four antenna ends, three antenna ends of the expansion antenna are respectively connected with frequency conversion units A1, B1 and C1, the frequency conversion units A1, B1 and C1 are used for carrying out frequency conversion on 5G radio frequency signals received by the antenna ends, and the other antenna end is connected with the synthesizer and used for transmitting original 5G radio frequency signals;
the synthesizer is used for combining the 5G radio frequency signals subjected to frequency conversion by the frequency conversion units A1, B1 and C1 with the original 5G radio frequency signals into RF signals to be output;
the four antenna terminals of the extension antenna are respectively connected with switches A2, B2, C2 and D, wherein:
the output ends of the switches A2, B2 and C2 are respectively connected with frequency conversion units A1, B1 and C1;
the output end of the switching circuit D is connected with the synthesizer;
the switches a2, B2, and C2 and D each include a bridge, a switch, and an expansion amplifier, wherein:
the bridge is used for receiving and outputting 5G radio frequency signals;
the two expansion amplifiers are connected with the electric bridge through a switch;
the clock module comprises a left clock circuit and a right clock circuit, the left clock circuit and the right clock circuit and the frequency conversion units A1, B1 and C1 form an enhanced DRU, the enhanced DRU further comprises an enhanced antenna, and a time division switch, a filter and an enhanced amplifier are arranged in each of the left clock circuit and the right clock circuit, wherein:
the filters and the enhanced amplifiers are provided with two groups which are respectively positioned at the output end and the input end of the frequency conversion units A1, B1 and C1;
the time division switch in the left clock circuit is connected with a frequency divider arranged in the synthesizer;
and the time division switch in the right clock circuit is connected with the enhanced antenna.
2. The radio frequency signal coverage wireless communication device based on 4T4R single wire transmission according to claim 1, wherein: the frequency conversion units A1, B1 and C1 are all provided with a controller, an upper mixer and a lower mixer, wherein:
the input end of the controller is connected with a reference clock;
and the upper mixer and the lower mixer are both provided with an IN port and an OUT port.
3. The radio frequency signal coverage wireless communication device based on 4T4R single wire transmission according to claim 2, wherein: the 5G core network, the 5G baseband and the extension unit are connected through optical fibers.
4. The radio frequency signal coverage wireless communication device according to claim 3, based on 4T4R single wire transmission, wherein: the expansion unit and the expansion ERU are connected through a photoelectric composite cable.
5. The radio frequency signal coverage wireless communication device according to claim 4T4R, based on single wire transmission of 4T4R, wherein: the number of the enhanced DRUs is eight, and the extended ERU is connected with the eight enhanced DRUs through a feed cable.
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| CN112954706A (en) * | 2021-01-27 | 2021-06-11 | 深圳国人无线通信有限公司 | Wireless network communication indoor distribution system |
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| CN106160674A (en) * | 2009-12-21 | 2016-11-23 | 大力系统有限公司 | For improving the system of the isolation between transmitter and receiver |
| US9998200B2 (en) * | 2013-06-20 | 2018-06-12 | Aviat U.S., Inc. | Systems and methods for a fronthaul network |
| CN110225528A (en) * | 2019-05-14 | 2019-09-10 | 中通服咨询设计研究院有限公司 | One master-slave type remote radio unit (RRU) and its method for realizing indoor depth covering |
| CN111510218B (en) * | 2020-03-30 | 2023-05-02 | 深圳国人无线通信有限公司 | 5G wireless network communication system |
| CN111935730A (en) * | 2020-08-12 | 2020-11-13 | 深圳国人无线通信有限公司 | Method and device for realizing signal coverage of distributed base station and base station network |
| CN113993074B (en) * | 2021-11-19 | 2022-08-05 | 深圳市佳贤通信设备有限公司 | 5G base station signal transceiving device and target positioning method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111405580A (en) * | 2020-03-20 | 2020-07-10 | 广州开信通讯系统有限公司 | 5G indoor coverage system and working method |
| CN112954706A (en) * | 2021-01-27 | 2021-06-11 | 深圳国人无线通信有限公司 | Wireless network communication indoor distribution system |
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Address after: 518000 Room 101, building C4, Zone C, Fuhai international science and Technology Park, Zhancheng community, Fuhai street, Bao'an District, Shenzhen, Guangdong Province Patentee after: Shenzhen Jiaxian Communication Technology Co.,Ltd. Address before: 518103 Room 101, building C4, Zone C, Fuhai international science and Technology Park, Zhancheng community, Fuhai street, Bao'an District, Shenzhen, Guangdong Province Patentee before: Shenzhen Jiaxian communication equipment Co.,Ltd. |