CN115079360A - 2-core optical fiber cable assembly in 5G communication system and application - Google Patents
2-core optical fiber cable assembly in 5G communication system and application Download PDFInfo
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- CN115079360A CN115079360A CN202210571759.XA CN202210571759A CN115079360A CN 115079360 A CN115079360 A CN 115079360A CN 202210571759 A CN202210571759 A CN 202210571759A CN 115079360 A CN115079360 A CN 115079360A
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- optical fiber
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- dlc
- upc
- bbu
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 25
- 238000004891 communication Methods 0.000 title claims abstract description 17
- 230000003287 optical effect Effects 0.000 claims abstract description 20
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 18
- 239000010935 stainless steel Substances 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000006855 networking Effects 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4431—Protective covering with provision in the protective covering, e.g. weak line, for gaining access to one or more fibres, e.g. for branching or tapping
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses a 2-core optical fiber cable assembly in a 5G communication system and application thereof, wherein the 2-core optical fiber cable assembly comprises an A end, a B end and an optical cable, the A end is connected with the B end through the optical cable, and the A end comprises a DLC/UPC common connector and a first branch device; the DLC/UPC common connector is connected with the first branch device through a first stainless steel hose; the B end comprises a second branching device and a DLC/UPC elongated connector, and the second branching device and the DLC/UPC elongated connector are connected through a second stainless steel hose. The invention simplifies maintenance work, reduces cost, improves networking efficiency, reduces loss, and has the following advantages for the downlink direction of the baseband: because baseband digital signals are transmitted between the BBU and the RRU, the base station controls the signal of a certain user to be transmitted from a specified RRU channel, and the interference to other channel users in the cell is reduced; for the uplink direction of the baseband: when the wireless signal of the user mobile phone is transmitted in the sky, the wireless signal is received by the RRU end channel which is close to the base station, and the wireless signal is transmitted to the base station through the optical fiber from the RRU end channel, so that the interference among users on different channels is reduced.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a 2-core optical fiber cable assembly in a 5G communication system and application thereof.
Background
With the rapid development of communication technology, the distributed base station is widely applied to the current mobile network construction by virtue of the advantages of low cost, strong environment adaptability and convenient engineering construction. The traditional base station equipment is divided into two functional modules according to functions: the functions of a Base band, a main control, transmission, a clock and the like of a Base station are integrated on a Base Band Unit (BBU) (building Base band Unit); radio frequency in a transceiver, a power amplifier and the like is integrated on another Radio frequency module RRU (remote Radio unit), and a Radio frequency unit is installed at an antenna end. The radio frequency unit and the baseband unit are connected by an optical fiber, which is sometimes called a distributed base station or a radio remote unit (BBU + RRU). The mode has the disadvantages of complicated maintenance work, high cost and low networking efficiency.
Disclosure of Invention
The invention aims to provide a 2-core optical fiber cable assembly in a 5G communication system and application thereof, so as to solve the problems of complicated maintenance work, high cost and low networking efficiency in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme: a2-core optical fiber cable assembly in a 5G communication system and application thereof comprise an A end, a B end and an optical cable 4, wherein the A end is connected with the B end through the optical cable 4, and the A end comprises a DLC/UPC (data link control/uplink control) common connector 1 and a first splitter 3; the DLC/UPC common connector 1 is connected with the first branching device 3 through a first stainless steel hose 2; the B end comprises a second branch device 5 and a DLC/UPC elongated connector 7, and the second branch device 5 and the DLC/UPC elongated connector 7 are connected through a second stainless steel hose 6.
The outer layer of the optical cable 4 is provided with an outer sheath, the diameter of the first stainless steel hose 2 is 2.1mm, and the diameter of the second stainless steel hose 6 is 2.8 mm.
The A end is an RRU end, the RRU is a Radio Remote Unit Radio frequency Remote module, the A end is fixed on an iron tower of the base station, and the optical cable 4 is partially extended to the ground along the iron tower, is introduced into a machine room of the base station through a grounding kit and is finally inserted into the communication equipment.
The B terminal is a BBU terminal, the BBU is a Building base band Unit indoor base band processing Unit, and one BBU supports a plurality of RRUs; the base band BBU is centralized in a machine room, and optical fiber transmission is adopted between the BBU and the RRU; the RRU is connected to the antenna through a coaxial cable, a power divider and a coupler, the trunk adopts an optical fiber, and the branch adopts a coaxial cable.
Compared with the prior art, the invention has the following beneficial effects:
the invention simplifies the complex maintenance work, adopts the scheme of BBU + RRU multi-channel, simultaneously reduces the cost, improves the networking efficiency, and reduces the loss and greatly reduces the power consumption by directly connecting the BBU and the RRU through optical fibers; meanwhile, for the downlink direction of the baseband: since baseband digital signals are transmitted between the BBU and the RRU, the base station controls the signal of a certain user to be transmitted from the designated RRU channel, and the interference to the users on other channels of the cell is greatly reduced; and for the uplink direction of the baseband: when the wireless signal of the user mobile phone is transmitted in the sky, the wireless signal can be received by the RRU end channel on the nearest base station, and then the wireless signal is transmitted to the base station from the channel through the optical fiber, so that the interference among users on different channels is greatly reduced.
Drawings
FIG. 1 is a schematic view of a fiber optic cable assembly according to the present invention;
fig. 2 is a schematic transmission diagram of an RRU end and a BBU end according to the present invention;
fig. 3 is a schematic diagram of RRU connection according to the present invention;
FIG. 4 is a transmission diagram of the present invention;
fig. 5 is a schematic diagram of outdoor and indoor transmission according to the present invention.
In the figure: 1. DLC/UPC common connectors; 2. a first stainless steel hose; 3. a first splitter; 4. an optical cable; 5. a second splitter; 6. a second stainless steel hose; 7. DLC/UPC elongated connectors.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work based on the embodiments of the present invention belong to the scope of the present invention.
As shown in fig. 1-5, a 2-core optical fiber cable assembly and application in a 5G communication system comprises an end a, an end B and an optical cable 4, wherein the end a is connected with the end B through the optical cable 4, and the end a comprises a DLC/UPC common connector 1 and a first splitter 3; the DLC/UPC common connector 1 is connected with the first branching device 3 through a first stainless steel hose 2; the B end comprises a second branch device 5 and a DLC/UPC elongated connector 7, and the second branch device 5 and the DLC/UPC elongated connector 7 are connected through a second stainless steel hose 6.
The outer layer of the optical cable 4 is provided with an outer sheath, the diameter of the first stainless steel hose 2 is 2.1mm, and the diameter of the second stainless steel hose 6 is 2.8 mm.
The A end is an RRU end, the RRU is a Radio Remote Unit Radio frequency Remote module, the RRU end converts a digital baseband signal into a high-frequency (Radio frequency) signal and sends the high-frequency (Radio frequency) signal to an antenna to radiate the high-frequency (Radio frequency) signal, the high-frequency (Radio frequency) signal is fixed on an iron tower of the base station and used for receiving a communication address sent by a user, the A end is fixed on the iron tower of the base station, and part of the optical cable 4 extends to the ground along the iron tower, is introduced into a machine room of the base station through a grounding kit and is finally inserted into communication equipment.
The B terminal is a BBU terminal, and the BBU is a Building base band Unit indoor base band processing Unit and is responsible for data processing and storage. One BBU supports a plurality of RRUs, and a BBU + RRU multichannel scheme is adopted to solve the indoor coverage of a large-scale venue. The base band BBU is centralized in a machine room, the RRU is installed to a floor, and optical fiber transmission is adopted between the BBU and the RRU; the RRU is connected to the antenna through a coaxial cable, a power divider and a coupler, the trunk adopts an optical fiber, and the branch adopts a coaxial cable.
As shown in FIG. 2, the transmission process is mainly divided into an indoor part and an outdoor part, wherein the indoor part is mainly a base band and a transceiver in a base station, and the outdoor part is mainly a power amplifier and low noiseAn amplifier, and a radio frequency bandpass filter. In the indoor part, the DLC lengthened connector 7 at the B end of the 2-core optical fiber cable assembly has the branch length of 500mm and has enough telescopic redundancy, and the branch part adopts
The stainless steel hose is used for protection, and the optical fiber can move smoothly due to excellent bending resistance; the intermediate frequency signal from the baseband processing unit is converted into an optical signal by an optical module on the baseband processing unit equipment inserted into the BBU end, the optical signal is transmitted to a receiving end after being transmitted by the optical fiber in the optical cable 4 in low loss, the DLC common connector 1 of the receiving end is inserted into the unit equipment of the RRU end, the branch length is 62.5mm, and the branch part also adopts the same method
Protecting a stainless steel hose; the RRU is provided with an intermediate frequency module to complete the modulation and demodulation of the optical signal, and then the A/D module and the transceiver complete the conversion from the intermediate frequency signal to the radio frequency signal, and then the radio frequency signal is transmitted through the antenna.
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 that the preferred embodiments of the invention and described in the specification are only preferred embodiments of the invention and are not intended to limit the invention, and that various changes and modifications may be made without departing from the novel spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A2-core optical fiber cable assembly in a 5G communication system and application thereof are characterized by comprising an A end, a B end and an optical cable (4), wherein the A end is connected with the B end through the optical cable (4), and the A end comprises a DLC/UPC common connector (1) and a first splitter (3); the DLC/UPC common connector (1) is connected with the first branching device (3) through a first stainless steel hose (2); the B end comprises a second branching device (5) and a DLC/UPC elongated connector (7), and the second branching device (5) and the DLC/UPC elongated connector (7) are connected through a second stainless steel hose (6).
2. 2-core optical fiber cable assembly in 5G communication system and application thereof according to claim 1, wherein the outer layer of the optical cable (4) is provided with an outer sheath, the diameter of the first stainless steel hose (2) is 2.1mm, and the diameter of the second stainless steel hose (6) is 2.8 mm.
3. The 2-core optical fiber cable assembly in the 5G communication system and the application thereof according to claim 1, wherein the A end is an RRU end, the RRU is a Radio Remote Unit Radio Remote Unit, the A end is fixed on a tower of a base station, part of the optical cable (4) extends along the tower to the ground, is introduced into a machine room of the base station through a grounding kit, and is finally inserted into the communication equipment.
4. The 2-core optical fiber cable assembly in the 5G communication system and the application thereof according to claim 1, wherein the B terminal is a BBU terminal, the BBU is a Building Baseband Unit indoor Baseband processing Unit, and one BBU supports a plurality of RRUs; the base band BBU is centralized in a machine room, and optical fiber transmission is adopted between the BBU and the RRU; the RRU is connected to the antenna through a coaxial cable, a power divider and a coupler, the trunk adopts an optical fiber, and the branch adopts a coaxial cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210571759.XA CN115079360A (en) | 2022-05-24 | 2022-05-24 | 2-core optical fiber cable assembly in 5G communication system and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210571759.XA CN115079360A (en) | 2022-05-24 | 2022-05-24 | 2-core optical fiber cable assembly in 5G communication system and application |
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| Publication Number | Publication Date |
|---|---|
| CN115079360A true CN115079360A (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210571759.XA Pending CN115079360A (en) | 2022-05-24 | 2022-05-24 | 2-core optical fiber cable assembly in 5G communication system and application |
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| Country | Link |
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| CN (1) | CN115079360A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204269891U (en) * | 2014-12-22 | 2015-04-15 | 苏州市吴通光电科技有限公司 | A kind of four optical-fiber cable assembly |
| CN107367797A (en) * | 2017-08-29 | 2017-11-21 | 广东亨通光电科技有限公司 | A kind of multicore zooms out component |
| CN208078202U (en) * | 2018-04-19 | 2018-11-09 | 江苏俊知传感技术有限公司 | The electric 2 light mixing cable assemblies of one kind 1 |
| CN211348779U (en) * | 2019-12-29 | 2020-08-25 | 江苏俊知传感技术有限公司 | Six-core multi-branch-length optical fiber cable assembly |
| CN215116901U (en) * | 2020-12-31 | 2021-12-10 | 江苏俊知传感技术有限公司 | Four-core multi-branch length optical fiber cable assembly |
-
2022
- 2022-05-24 CN CN202210571759.XA patent/CN115079360A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204269891U (en) * | 2014-12-22 | 2015-04-15 | 苏州市吴通光电科技有限公司 | A kind of four optical-fiber cable assembly |
| CN107367797A (en) * | 2017-08-29 | 2017-11-21 | 广东亨通光电科技有限公司 | A kind of multicore zooms out component |
| CN208078202U (en) * | 2018-04-19 | 2018-11-09 | 江苏俊知传感技术有限公司 | The electric 2 light mixing cable assemblies of one kind 1 |
| CN211348779U (en) * | 2019-12-29 | 2020-08-25 | 江苏俊知传感技术有限公司 | Six-core multi-branch-length optical fiber cable assembly |
| CN215116901U (en) * | 2020-12-31 | 2021-12-10 | 江苏俊知传感技术有限公司 | Four-core multi-branch length optical fiber cable assembly |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220920 |
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| RJ01 | Rejection of invention patent application after publication |