CN110212986A - A kind of 5G optical signal forward pass framework based on multiplex transmission - Google Patents
A kind of 5G optical signal forward pass framework based on multiplex transmission Download PDFInfo
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- CN110212986A CN110212986A CN201910509189.XA CN201910509189A CN110212986A CN 110212986 A CN110212986 A CN 110212986A CN 201910509189 A CN201910509189 A CN 201910509189A CN 110212986 A CN110212986 A CN 110212986A
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- 238000004891 communication Methods 0.000 claims abstract description 7
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
- H04B10/25752—Optical arrangements for wireless networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0278—WDM optical network architectures
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Abstract
The present invention relates to a kind of 5G optical signal forward pass frameworks based on multiplex transmission, the forward pass framework includes base station outdoor part and base station indoor section, the base station outdoor part includes pole, three active antenna element, that is, AAU, outdoor three optical splitter of two-way, three antenna branch optical cables and dragging optical cable, the indoor section includes three optical splitter of indoor two-way, three indoor branching optical cables and baseband processing unit, three active antenna elements and outdoor three optical splitter of two-way are all fixed on pole, pass through three antenna branch optical cable connections between three optical splitter of three active antenna elements and outdoor two-way respectively；The baseband processing unit is connected with three indoor branching optical cables respectively with indoor three optical splitter of two-way.Dragging optical cable only uses two core fibres in the technical solution, compared with traditional framework is with 6 core fibres, saves 2/3 optical fiber usage amount, has saved optical fiber, alleviates the crowded pressure of communication pipeline.
Description
Technical field
The present invention relates to a kind of frameworks, and in particular to a kind of 5G optical signal forward pass framework based on multiplex transmission belongs to shifting
Dynamic field of communication technology.
Background technique
In the network architecture of 3G and 4G mobile communication, Remote Radio Technique is generallyd use, i.e., the base band of base station equipment
Processing unit (BBU) and RF processing unit (RRU) and antenna are separated, and BBU is placed on indoor computer room, RRU and antenna peace
On outdoor steel tower (or iron), each antenna configuration one RRU, RRU and antenna coaxial RF cable connection, BBU and RRU
It is connected using optical cable.Since base station is generally there are three antenna, three RRU, present 3G and each RRU of 4G have two optical fiber with
BBU is connected, and an outdoor base station wants connection of 6 optical fiber for RRU and BBU, and fiber resource consumption is big.And 5G mobile communication
Since wireless frequency ratio 3G, 4G for using are higher, wireless signal covering radius is smaller, namely an equal amount of region of covering will be built
The greater number of base station 5G, if the base station network framework according to 3G, 4G will necessarily consume more fiber resources, this is to optical fiber
The resources such as optical cable, communication pipeline bring huge pressure, and therefore, the optical signal forward pass framework urgent need of 5G is a kind of new
Scheme solve above-mentioned technical problem.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of 5G optical signal forward pass framework based on multiplex transmission, the programs
The optical fiber usage amount in the forward pass of base station is saved in solving the problems, such as 5G base station construction, makes the forward pass optical fiber usage amount of the base station 5G
The one third of present 3G, 4G base station mode.
In order to solve the above-mentioned technical problem, technical scheme is as follows: a kind of 5G optical signal based on multiplex transmission
Forward pass framework, the forward pass framework include base station outdoor part and base station indoor section, the base station outdoor part include pole,
Three active antenna elements (AAU), three optical splitter of outdoor two-way, three antenna branch optical cables and dragging optical cable, the interior
Part includes indoor three optical splitter of two-way, three indoor branching optical cables and baseband processing unit, three active antenna elements and
Outdoor three optical splitter of two-way is all fixed on pole, between three optical splitter of three active antenna elements and outdoor two-way respectively
It is connected by three antenna branch optical cables；The baseband processing unit (BBU) and indoor three optical splitter of two-way use three rooms respectively
Interior branched cable connection, the dragging optical cable setting is between three optical splitter of outdoor three optical splitter of two-way and indoor two-way.
As an improvement of the present invention, outdoor three optical splitter of two-way and indoor three optical splitter of two-way are all by two one
Divide three optical paths composition, one of optical path is used for the combining of three branch optical signals, another optical path is for three branch light letters
Number branch.
As an improvement of the present invention, there are four double altogether for indoor three optical splitter of two-way and outdoor three optical splitter of two-way
Optical path port, one of them is combining port, and the other three is tributary port.
As an improvement of the present invention, the active antenna element (AAU) is by antenna element array, RF signal processing list
Member and antenna emission and reception module composition, the antenna emission and reception module are inserted in the bottom of active antenna element (AAU), it is by laser
Signal transmitting portion and receiving portion composition, can send and receive optical signal simultaneously.
As an improvement of the present invention, the antenna branch optical cable is the optical cable for including two core fibres (a pair of of optical fiber),
A piece optical fiber receives an optical fiber hair, and one, antenna branch optical cable is inserted on antenna emission and reception module, and other end is inserted in outdoor two-way
On one tributary port of three optical splitters.
As an improvement of the present invention, the dragging optical cable be include two core fibres (a pair of of optical fiber) optical cable or with
It is to occupy two optical fiber (a pair of of optical fiber) therein, a light in same multifiber cable when the dragging optical cable of other base stations is with routing
Fibre receives an optical fiber hair, and the both ends of two (a pair) optical fiber in dragging optical cable are separately connected outdoor three optical splitter of two-way and interior
The combining end of three optical splitter of two-way.
As an improvement of the present invention, the indoor branching optical cable includes two cores (a pair) optical fiber with three, every, often
A tributary port of three optical splitter of two-way in one junction chamber of root indoor branching optical cable, the other end connect corresponding on BBU
On one indoor emission and reception module.
As an improvement of the present invention, it is used altogether three to (6) optical module, i.e., on the interior BBU and on the AAU of outdoor
An indoor emission and reception module on indoor BBU and an antenna emission and reception module on AAU form a pair of of communication loop, each pair of
The receipts and hair of optical module use an optical wavelength, and three pairs of optical modules use three different receipts and emission wavelength wavelength, in room
It is transmitted in a manner of wavelength-division multiplex (WDM) in dragging optical cable after (interior) outer three optical splitter of two-way combining.
Compared with prior art, the beneficial effects of the invention are as follows
1) the technical solution whole system structure is compact to design ingenious, outdoor three optical splitter of two-way and indoor two-way three
Optical splitter is all made of two one point of three optical paths, and one of optical path is used for the combining of three branch optical signals, another optical path
Branch for three branch optical signals；
2) dragging optical cable only uses two core fibres in the technical solution, compared with traditional framework is with 6 core fibres, saves
2/3 optical fiber usage amount, has saved optical fiber, alleviates the crowded pressure of communication pipeline；
3) 3 pairs of optical modules carry out the transmission (WDM transmission mode) of optical signal using different optical wavelength in the technical solution,
So that the signal of three antennas " AAU " is not interfere with each other when transmitting in the dragging optical cable that 2 core fibres form.
Detailed description of the invention
Fig. 1 is overall structure of the present invention；
Fig. 2 is three optical splitter optical path of two-way and port schematic diagram；
In figure: 1, antenna branch optical cable, 2, three optical splitter of outdoor two-way, 3, dragging optical cable, 4, three optical splitter of indoor two-way,
5, indoor branching optical cable, 6, baseband processing unit, that is, BBU, 7, active antenna element, that is, AAU, 8, pole, 7-1, antenna oscillator battle array
Column, 7-2, RF signal processing unit, 7-3, antenna emission and reception module, 6-1, indoor emission and reception module.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Whole description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without creative labor it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
Embodiment 1: shown in referring to Fig.1, a kind of 5G optical signal forward pass framework based on multiplex transmission, the forward pass framework packet
Include base station outdoor part and base station indoor section, the base station outdoor part include 8, three active antenna elements 7 of pole i.e.
AAU, outdoor three optical splitter of two-way, 2, three antenna branch optical cables 1 and dragging optical cable 3, the indoor section include indoor two-way
The three indoor branching optical cables 5 of optical splitter 4, three and baseband processing unit 6, three active antenna elements 7 and outdoor two-way three divide
Light device 2 is all fixed on pole 8, passes through three respectively between three optical splitter 2 of three active antenna elements 7 and outdoor two-way
Antenna branch optical cable 1 connects；The baseband processing unit 6 is BBU and indoor three optical splitter 4 of two-way respectively with three indoor branchings
Optical cable 5 connects, and the setting of dragging optical cable 3 is between three optical splitter 4 of outdoor three optical splitter 2 of two-way and indoor two-way, the room
Outer three optical splitter 2 of two-way and indoor three optical splitter 4 of two-way are all made of two one point of three optical paths, and one of optical path is used for three
The combining of road optical signal, another optical path are used for the branch of three road optical signals, see attached drawing 2,4 He of interior three optical splitter of two-way
There are four double light path ports altogether for outdoor three optical splitter 2 of two-way, one of them is combining port, and the other three is tributary port, institute
Active antenna element 7 i.e. AAU is stated by antenna element array 7-1, RF signal processing unit 7-2 and antenna emission and reception module 7-3 group
At the antenna emission and reception module 7-3 is inserted in the bottom of active antenna element, it is by laser signal transmitting portion and receiving portion
Composition, can send and receive optical signal, the antenna branch optical cable 1 includes two core fibres (a pair of of light with three, every simultaneously
It is fine) optical cable, an optical fiber receives an optical fiber hair, and one, antenna branch optical cable is inserted on antenna emission and reception module 7-3, other end
It is inserted on a tributary port of outdoor three optical splitter 2 of two-way, the dragging optical cable 3 includes two core fibres (a pair of of optical fiber)
Optical cable is to occupy two optical fiber (a pair of of light therein in same multifiber cable when with the dragging optical cable of other base stations with routing
It is fine), an optical fiber receives an optical fiber hair, and the both ends of two (a pair) optical fiber in dragging optical cable are separately connected outdoor two-way three and divide
The combining end of three optical splitter of light device and indoor two-way, the indoor branching optical cable 5 include two cores (a pair) light with three, every
Fibre, a tributary port of three optical splitter of two-way in one junction chamber of every indoor branching optical cable, the other end connect the phase on BBU
On answer one indoor emission and reception module, used altogether the interior BBU on and on the AAU of outdoor three to (6) optical module, i.e. interior
An indoor emission and reception module on BBU and an antenna emission and reception module on AAU form a pair of of communication loop, each pair of optical mode
The receipts and hair of block use an optical wavelength, and three pairs of optical modules use three different receipts and emission wavelength wavelength, at room (interior)
It is transmitted in a manner of wavelength-division multiplex (WDM) in dragging optical cable 3 after outer three optical splitter of two-way combining；Three active antenna elements 7
It is connected respectively with three antenna branch optical cables with outdoor three optical splitter 2 of two-way, of length no more than the 10 of every antenna branch optical cable
Rice.Baseband processing unit 6 is connected with three indoor branching optical cables respectively with indoor three optical splitter 4 of two-way, every indoor branching light
Of length no more than 15 meters of cable；Outdoor three optical splitter of two-way and three optical splitter of outdoor two-way are apart from each other, are carried out with dragging optical cable 3
Connection, the extreme length of dragging optical cable 3 is up to 20 kms.
It should be noted that above-described embodiment, is not intended to limit the scope of protection of the present invention, in above-mentioned technical proposal
On the basis of made equivalents or substitution each fall within the range that the claims in the present invention are protected.
Claims (8)
1. a kind of 5G optical signal forward pass framework based on multiplex transmission, which is characterized in that the forward pass framework includes base station outdoor
Part and base station indoor section, the base station outdoor part include pole, three i.e. AAU of active antenna element, outdoor two-way three
Optical splitter, three antenna branch optical cables and dragging optical cable, the indoor section include three optical splitter of indoor two-way, three interiors
Branched cable and baseband processing unit, three active antenna elements and outdoor three optical splitter of two-way are all fixed on pole, institute
It states between three optical splitter of three active antenna elements and outdoor two-way respectively by three antenna branch optical cable connections；The base band
Processing unit, that is, BBU is connected with three indoor branching optical cables respectively with indoor three optical splitter of two-way, and the dragging optical cable setting exists
Between three optical splitter of outdoor three optical splitter of two-way and indoor two-way.
2. the 5G optical signal forward pass framework according to claim 1 based on multiplex transmission, which is characterized in that described outdoor double
Three optical splitter of road and indoor three optical splitter of two-way are all made of two one point of three optical paths, and one of optical path is used for three road optical signals
Combining, another optical path be used for three road optical signals branch.
3. the 5G optical signal forward pass framework according to claim 2 based on multiplex transmission, which is characterized in that described indoor double
There are four double light path ports altogether for three optical splitter of road and outdoor three optical splitter of two-way, one of them is combining port, and the other three is
Tributary port.
4. the 5G optical signal forward pass framework according to claim 1 or 2 or 3 based on multiplex transmission, which is characterized in that described
Active antenna element, that is, AAU is made of antenna element array, RF signal processing unit and antenna emission and reception module, the antenna
Emission and reception module is inserted in the bottom of active antenna element, it is made of laser signal transmitting portion and receiving portion, can connect simultaneously
Receive and send optical signal.
5. the 5G optical signal forward pass framework according to claim 1 or 2 or 3 based on multiplex transmission, which is characterized in that described
Antenna branch optical cable includes the optical cable of two core fibres, and an optical fiber receives an optical fiber hair, and one, antenna branch optical cable is inserted in antenna
On emission and reception module, other end is inserted on a tributary port of outdoor three optical splitter of two-way.
6. the 5G optical signal forward pass framework according to claim 1 or 2 or 3 based on multiplex transmission, which is characterized in that described
Dragging optical cable is to include the optical cable of two core fibres or when with the dragging optical cable of other base stations with routing in same multifiber cable
Two optical fiber therein is occupied, an optical fiber receives an optical fiber hair, and the both ends of two optical fiber in dragging optical cable are separately connected room
The combining end of three optical splitter of outer three optical splitter of two-way and indoor two-way.
7. the 5G optical signal forward pass framework according to claim 1 or 2 or 3 based on multiplex transmission, which is characterized in that described
For indoor branching optical cable with three, every includes two core fibres, three optical splitter of two-way in one junction chamber of every indoor branching optical cable
A tributary port, the other end connects on corresponding one indoor emission and reception module on BBU.
8. the 5G optical signal forward pass framework according to claim 1 or 2 or 3 based on multiplex transmission, which is characterized in that described
Altogether using three to (6) optical module on indoor BBU and on the AAU of outdoor, i.e. an interior emission and reception module on interior BBU and
An antenna emission and reception module on AAU forms a pair of of communication loop, and the receipts and hair of each pair of optical module use an optical wavelength,
Three pairs of optical modules use three different receipts and emission wavelength wavelength, are zooming out light after room (interior) outer three optical splitter of two-way combining
It is transmitted in a manner of wavelength-division multiplex (WDM) in cable.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112804005A (en) * | 2021-04-08 | 2021-05-14 | 网络通信与安全紫金山实验室 | Photon millimeter wave indoor coverage transmission method and system |
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