CN109495902A - For the far end device of multiband distributed system, multiband distributed system and to uplink/downlink signals processing method - Google Patents
For the far end device of multiband distributed system, multiband distributed system and to uplink/downlink signals processing method Download PDFInfo
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Abstract
The invention discloses a kind of far end devices for multiband distributed system, including main far-end unit and at least one from far-end unit, at least one is connected to main far-end unit from far-end unit, main far-end unit respectively corresponds a frequency band signals from far-end unit at least one, main far-end unit generates the signal output for adapting to different frequency range channel for handling the signal received；At least one is used to receive the signal output in the frequency range channel being adapted to it from far-end unit.The invention also discloses multiband distributed system and the methods handled using it uplink and downlink signals, disclosed method and device according to the present invention, it can satisfy in the following 5G epoch, to the requirement of distributed system covering when the multi-standards signal coexistence such as NB-IoT, 2G, 3G, 4G, WLAN, there is boundless application prospect.
Description
Technical field
The present invention relates to network communication technology field more particularly to a kind of distal end dresses for multiband distributed system
It sets, multiband distributed system and method uplink/downlink signals handled using the system.
Background technique
With 5G so that the development of subsequent 6G system, has driven the broadband data services such as mobile Internet, Internet of Things
Explosive growth, but due to that can not be eliminated in original 2G, 3G, 4G system short time, multisystem signal coexistence becomes inevitable,
This also gives the traditional network coverage and optimization to bring great challenge.
Signal covering exists when in order to solve the problem of above more coexistence of communication systems, and application No. is CN103201958A
Application for a patent for invention " the daisy chain type ring of the remote unit for distributing antenna system " propose a kind of scheme, the invention
Dominant ideas be daisy chain type ring based on one or more distributing antenna system, remote unit use chrysanthemum chain link,
The wireless network efficiency and stream that different frequency channels improves operator are dynamically distributed by remote unit different in daisy chain
Measure capacity.The emphasis of the program, which is more embodied in, to be promoted above network efficiency, but when remote unit is inherently multiple frequency ranges
When, in this case, some or multiple frequency ranges are dynamically only opened, the urgency of distributing antenna system overall cost certainly will be brought
Play rises；And if being merely able to dynamically open a frequency range when remote unit is inherently single frequency range, transfer frequency resource
It is limited, it can not play the role of promoting network efficiency so well.
Summary of the invention
For solve the above problems, it is contemplated that improved to existing remote equipment, realized pair in far-end unit
The separation of multi-standard signal enables the signal of each frequency range to export via different frequency range channels, to realize the network coverage,
When to solve existing multisystem signal coexistence, the system cost of signal covering steeply rises asks with what resource was unable to fully utilize
Topic.
The central scope of technical solution of the present invention is, remote equipment is arranged to include a main far-end unit and multiple
From far-end unit, each far-end unit is respectively used to the signal of one special frequency channel of processing, i.e., each far-end unit corresponding one
A frequency range channel, in this way after data or service signal are issued from base station, again by the multifrequency of synthesis after being handled into proximal end
Segment signal is exported to far-end unit, and the multi-band signal of synthesis can be resolved into corresponding different frequency range according to standard by far-end unit
The frequency band signals in channel, then each signal is issued by antenna, it realizes region overlay, thus solves traditional in the prior art
The problem of network coverage, realizes the distribution signal of multiband, has effectively carried out region overlay.
According to the first aspect of the invention, a kind of far end device for multiband distributed system is provided, comprising:
For main far-end unit at least one from far-end unit, at least one is connected to main far-end unit from far-end unit,
Main far-end unit respectively corresponds a frequency range channel from far-end unit at least one,
For main far-end unit for handling the signal received, the signal that generation adapts to different frequency range channel is defeated
Out；
At least one is used to receive the signal output in the frequency range channel being adapted to it from far-end unit.
According to the second aspect of the invention, a kind of multiband distributed system is provided, comprising:
Near-end device and far end device, wherein far end device is above-mentioned far end device, in near-end device and far end device
Main far-end unit connection；
Near-end device is for receiving base station signal framing into optical signal transmission to main far-end unit；
Main far-end unit is used to carrying out optical signal into processing to generate the signal for adapting to different frequency range channel, suitable via frequency range
The main far-end unit matched is exported from the antenna of far-end unit.
According to the third aspect of the present invention, a kind of distributed downlink letter of application above system progress multiband is provided
Number processing method, includes the following steps:
After near-end device obtains base station signal progress framing, pass through optical signal transmission fiber to main far-end unit；
Main far-end unit handles the optical signal, the signal for adapting to different frequency range channel is generated, by different frequencies
The signal of section is transmitted to antenna output via the main far-end unit of corresponding band or from far-end unit.
According to the fourth aspect of the present invention, a kind of distributed uplink letter of application above system progress multiband is provided
Number processing method, includes the following steps:
It is multiple intermediate-freuqncy signal is converted to by the signal that antenna obtains different frequency range channel from far-end unit to export to main remote
End unit；
Main far-end unit by the signal obtained by antenna and after the received intermediate-freuqncy signal of far-end unit is handled,
The optical signal of synthesis multiband is exported to near-end device；
Near-end device exports after handling the optical signal received to corresponding base station.
The devices, systems, and methods provided according to the present invention for the multisystems such as 2G, 3G, 4G, 5G, WIFI signal and are deposited
When the complicated movement communication network that constitutes, can be covered for the complicated movement communication network and effective distributed remote processor be provided
The system signal of each different channel is integrated, is handled to generate the signal for adapting to different frequency range, further according to not by mode
Same frequency range channel transfer to antenna realizes signal covering, does not need to eliminate any system equipment, and implementation is simply square
Just, cost is relatively low.
Detailed description of the invention
Fig. 1 is the far end device functional block diagram for multiband distributed system of one embodiment of the present invention；
Fig. 2 is the main remote end module principle of the far end device for multiband distributed system of an embodiment of the present invention
Block diagram；
Fig. 3 is the slave remote end module principle of the far end device for multiband distributed system of an embodiment of the present invention
Block diagram；
Fig. 4 is the multiband distributed system block diagram of an embodiment of the present invention；
Fig. 5 is that the application multiband distributed system of an embodiment of the present invention carries out the distributed downlink signal of multiband
The method flow diagram of processing；
Fig. 6 is that the application multiband distributed system of an embodiment of the present invention carries out the distributed uplink signal of multiband
The method flow diagram of processing.
Specific embodiment
Embodiments of the present invention are described in detail with reference to the accompanying drawing.
Fig. 1 schematically shows the far end device for multiband distributed system of one embodiment of the present invention
Structural principle block diagram, as shown in Figure 1,
Far end device for multiband distributed system include: main far-end unit 1 and at least one from far-end unit,
In the present embodiment, for comprising there are two from far-end unit 11,12, it may include in other embodiments multiple.From remote
End unit 11,12 is connected to main far-end unit 1, main far-end unit 1 and respectively corresponds a frequency range from far-end unit 11,12
Channel covers for realizing the signal of corresponding band.
For main far-end unit 1 for handling the signal received, the signal that generation adapts to different frequency range channel is defeated
Out.Wherein, the signal received is the multiband integrated signal from base station, is sent after being integrated via proximal end unit
To main far-end unit.
It is used to receive the signal output in the frequency range channel being adapted to it from far-end unit 11,12.
As a preferred embodiment, it main far-end unit 1 and respectively is set as being all made of built-in antenna from far-end unit 11,12, this
Sample can save space, and can be realized the applied customization to far-end unit.
For main far-end unit 1, the signal for adapting to different frequency range channel generated includes the frequency with main far-end unit 1
The dominant frequency segment signal of section path adaptation, and believe respectively with respectively from the multiple of the frequency range path adaptation of far-end unit 11,12 from frequency range
Number.Illustratively, as shown in Fig. 2, main far-end unit 1 includes: protocol analysis unit 31, file distributing unit 32, data processing
Unit 33, data mixing unit 34.
The signal that protocol analysis unit 31 is used to will acquire resolve to according to agreement the digital signal of synthesis, the agreement
It can flexibly be realized according to the agreement that specific system uses, such as when main far-end unit is connect by optical fiber with proximal end unit
When, can receive that proximal end unit sends includes the fiber-optic signal of the signal of each frequency range, at this time will be according to fiber optic protocols
The optical signal received is parsed, the digital signal synthesized.Wherein, the digital signal of synthesis includes respectively from difference
The digital signal of different frequency range that transmits of base station.
File distributing unit 32 is used to for the digital signal of synthesis being divided into the signal of different frequency range according to standard, due to master
It far-end unit and is disposed as respectively corresponding a frequency range channel, thus the multiple frequencies divided according to standard from far-end unit
Segment signal just includes adapting to the dominant frequency segment signal in the frequency range channel of main far-end unit 1 and adapting to the frequency from far-end unit 2
The slave frequency band signals of Duan Tongdao.
Data processing unit 33 be used to after being filtered by dominant frequency segment signal and from frequency band signals be restored to it is each
The signal of the corresponding respective channel in base station, later, to the multi channel signals after recovery, that is, dominant frequency segment signal and from frequency band signals into
Row digital-to-analogue conversion is respectively converted into main analog if signal and from analog if signal.Later, main far-end unit 1 can incite somebody to action
Main analog if signal and from analog if signal respectively pass through corresponding frequency range channel export.
As a preferred embodiment, main far-end unit 1 with respectively connected from far-end unit 11,12 by radio frequency line, for generate
The slave analog if signal adapted to from channel frequency range, can be transmitted to by the radio frequency interface of main far-end unit corresponding from remote
End unit 11,12.Meanwhile acquisition main analog if signal (i.e. with the intermediate frequency of the frequency range path adaptation of main far-end unit itself
Signal) it will be sent to data mixing unit 34, data mixing unit 34 is used to main analog if signal passing through frequency mixer frequency conversion
Afterwards, the radiofrequency signal for becoming low-power is further continued for after filtering, power amplification, duplexer, become in powerful radio frequency letter
Number overlay area is transmitted to by antenna 8.
This completes the base station signals for the multiple frequency range that will acquire to carry out distributed transmission management according to frequency range difference, real
The integration of many-to-many communication system is showed.
In the preferred embodiment, main far-end unit 1 includes reference signal module 6, which makes main distal end for generating
Unit 1 and from far-end unit 11, the consistent reference signal of 12 frequencies, is transmitted to from far-end unit, implementation is referred to
The prior art is realized, it is possible thereby to keep the Frequency Synchronization from far-end unit 11,12 and main far-end unit 1.It should be noted that
Main far-end unit is kept by reference to the mode of signal and Frequency Synchronization from far-end unit is a kind of specific implementation selected
Scheme, those skilled in the art can also be based on the purpose, select other modes guarantee main far-end unit and from distal end it is single
The synchronization of first frequency, the embodiment of the present invention are not intended as the limitation to this.
In the preferred embodiment, main far-end unit further includes for the power module 5 to power from far-end unit, from remote
End unit 11,12 is connected to power module 5.In the present embodiment, supply voltage uses 28V or 9V, thus power module 5
Using the power panel more distributed, the supply voltage for being 28V or 9V by the municipal voltage decomposition of access connects by multiple power supplys
Mouth output, it is different to be respectively connected to some power interface from far-end unit, realize the power supply to it.Due to main far-end unit
It needs to configure multiple from far-end unit, so needing to configure the sufficiently large power panel of power for main far-end unit, can give in this way
It is multiple to power from far-end unit.
In the preferred embodiment, main far-end unit further includes for obtaining respectively from the monitoring of the monitoring information of far-end unit
Module 4 is connected to monitoring module 4 from far-end unit 11,12, which is embodied as including multiple prisons for monitoring interfaces
Plate is controlled, monitoring interface illustratively uses RS485 interface chip.It also include respectively from monitoring module, respectively from far-end unit 11
A slave monitoring module from far-end unit is connected to the monitoring module 4 of main far-end unit by monitoring interface, to realize main remote
End unit 4 is to the acquisition of the monitoring information from far-end unit and summarizes, to realize proximal end unit to all far-end unit information
Monitoring.
Illustratively, as shown in figure 3, receiving the slave analog intermediate frequency letter issued by main far-end unit from far-end unit 11
After number, by the analog if signal after frequency mixer frequency conversion, become the radiofrequency signal of low-power, is further continued for by filtering, function
After rate amplification, the processing of duplexer, become in powerful radiofrequency signal, be transmitted to cover by correspondence one in antenna later
Cover area.
It preferably, further include frequency regulation block (not shown) from far-end unit, for according to the reference received
Signal adjusts its frequency, so that synchronous with main far-end unit keep frequency from far-end unit.
It in the preferred embodiment, further include the slave power module 61 being connected with the power module 5 of main far-end unit, and
It is matching used from monitoring module 62 with monitoring module 4, so as to have the function that real time monitoring.
It can be covered according to device provided in this embodiment for complicated movement communication network and effective distributed distal end is provided
The system signal of each different channel is integrated, is processed into the signal for adapting to different frequency range, further according to not by processing mode
With channel transmission to antenna realize signal covering, do not need to eliminate any system equipment, and implementation it is simple and convenient, at
This is lower.
Fig. 4 schematically shows multiband distributed system block diagram according to an embodiment of the present invention, such as Fig. 4 institute
Show, which includes near-end device 7 and far end device 8, wherein far end device 8 be above-mentioned far end device, near-end device 7 with
Main far-end unit connection in far end device 8.Preferably, near-end device 7 and main far-end unit star-like connection, can accommodate multiple
Main far-end unit.
For receiving base station signal framing into optical signal transmission to main far-end unit 1, which comes from near-end device 7
In it is each send signal base station, carry out framing be the different frequency range for being sent different base station based on fiber optic protocols signal according to
The mode of serial transmission carries out framing.
Main far-end unit 1 is used to carrying out the optical signal received into processing to generate the signal for adapting to different frequency range channel,
It is exported via the main far-end unit of frequency band adapted or from the antenna of far-end unit, specific processing method implementation is referred to
Above-mentioned method part.What needs to be explained here is that since near-end device 7 is to carry out framing in the way of serial transmission,
Thus main far-end unit 1 is the group according to near-end device 7 when composite signal to be converted to the signal of different frequency range according to standard
Frame Protocol parses serial signal according to flag bit, and decomposition obtains the signal of different frequency range.
Base station signal can be handled by near-end device, far end device according to system provided in this embodiment, it is raw
At the signal of suitable different frequency range, distributed purpose is reached, has efficiently transmitted signal, and can receive various
Signal carries out antenna covering.
Fig. 5 schematically shows that application multiband distributed system according to an embodiment of the present invention carries out multiband
Distributed downlink signal processing method flow chart, as shown in figure 5, including the following steps:
Step S501: after near-end device obtains base station signal progress framing, it is single to main distal end to pass through optical signal transmission fiber
Member.Wherein, near-end device and main far-end unit are in star-like connection, i.e. a near-end device can connect multiple main far-end units into
Row processing.
Step S502: main far-end unit handles optical signal, generates the signal for adapting to different frequency range channel, will not
With frequency range signal via corresponding band main far-end unit or from far-end unit be transmitted to antenna output.Specific implementation are as follows: first
First, main far-end unit parses (as parsed based on fiber optic protocols) optical signal according to the transport protocol of use, generates
The synthetic digital signal of multiband, and according to standard be divided into dominant frequency segment signal and it is multiple from frequency band signals (such as to string
The signal of row transmission is carried out the division of different frequency range signal by flag bit), by dominant frequency segment signal via the antenna of main far-end unit
Output, will export from frequency band signals via the prevention at radio-frequency port of main far-end unit to the slave far-end unit of corresponding band, by from remote
The antenna of end unit exports, to realize the function of distributed transmission and signal covering.
In order to make in subsequent treatment process, work that amplifier can be stable and reduce interference, by dominant frequency segment signal and
It is multiple that intermediate-freuqncy signal is converted by the frequency translation function of the prior art from frequency band signals, then dominant frequency segment signal is converted into
Intermediate-freuqncy signal carry out frequency conversion, filtering, power amplification and duplexer processing generate radiofrequency signal via main far-end unit antenna
Output；And multiple intermediate-freuqncy signals be converted to from frequency band signals are exported to corresponding from far-end unit (according to determining pair of frequency range
The slave far-end unit answered).And frequency conversion, filtering, power amplification and duplexer are carried out to the intermediate-freuqncy signal received from far-end unit
Processing generates radiofrequency signal and exports via antenna.
In the preferred embodiment, it is provided with the consistent ginseng of frequency for keeping main far-end unit and from far-end unit
Examine signal；Main far-end unit is by reference signal transmission extremely from far-end unit；From far-end unit according to reference signal to itself frequency
Rate is adjusted.It is possible thereby to guarantee that main far-end unit is corresponding synchronous from far-end unit working frequency with its.
According to method provided in this embodiment, frequency range division processing can be carried out to the base station signal of downlink, generate and be suitble to
The signal of different frequency range has reached distributed purpose, has efficiently transmitted signal, and can receive various signals into
The covering of row antenna.
Fig. 6 schematically shows that application multiband distributed system according to an embodiment of the present invention carries out multiband
Distributed uplink signal processing method flow chart, as shown in fig. 6, the present embodiment includes the following steps:
Step S601: multiple from far-end unit the signal in different frequency range channel to be obtained by antenna to be converted to intermediate-freuqncy signal defeated
Out to main far-end unit.The signal that different frequency range is obtained by antenna, transmits it to the slave far-end unit of corresponding frequency band, via
The operation transmissions such as data processing, such as frequency conversion, filtering, power amplification are into corresponding main far-end unit, i.e. the uplink signal
Processing mode is the processing inverse process of downlink signal.
Step S602: main far-end unit by the signal obtained by antenna and since the received intermediate-freuqncy signal of far-end unit into
After row processing, the optical signal for synthesizing multiband is exported to near-end device, wherein the mode of processing and composite signal is referred to
The method for the downlink signal corresponding process stated is realized by its reverse process.
Step S603: near-end device exports after handling the optical signal received to corresponding base station.
According to method provided in this embodiment, frequency range division processing can be carried out to the base station signal of uplink, generate and be suitble to
The signal of different frequency range has reached distributed purpose, has efficiently transmitted signal, and can receive various signals into
The covering of row antenna.
It is provided in an embodiment of the present invention to pass through above-mentioned hand-off process principle and mistake for the distributed far end device of multiband
Journey realizes and carries out frequency-division section processing to the signal of the different base station of acquisition so that antenna covering become it is efficient, simple, quick,
Cost is lower.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.
Claims (12)
1. being used for the far end device of multiband distributed system characterized by comprising main far-end unit and at least one from remote
End unit, it is described at least one from far-end unit be connected to the main far-end unit,
The main far-end unit respectively corresponds a frequency range channel from far-end unit at least one,
For the main far-end unit for handling the signal received, the signal that generation adapts to different frequency range channel is defeated
Out；
It is described at least one be used to receive the signal in frequency range channel being adapted to it from main far-end unit from far-end unit and export.
2. far end device according to claim 1, which is characterized in that the letter for adapting to different frequency range channel of the generation
Number include the dominant frequency segment signal with the frequency range path adaptation of main far-end unit, and respectively with it is respectively suitable from the frequency range channel of far-end unit
That matches is multiple from frequency band signals,
The main far-end unit is exported after being also used to be handled the dominant frequency segment signal by antenna.
3. far end device according to claim 2, which is characterized in that the main far-end unit and respectively pass through from far-end unit
Radio frequency line connection, it is the multiple from frequency band signals be intermediate-freuqncy signal.
4. far end device according to claim 3, which is characterized in that the main far-end unit includes reference signal module,
Make main far-end unit for generation and from the consistent reference signal of far-end unit frequency, is transmitted to from far-end unit；
It is described from far-end unit include frequency regulation block, for adjusting its frequency according to the reference signal that receives.
5. far end device according to any one of claims 1 to 4, which is characterized in that the main far-end unit further includes
For the power module to power from far-end unit, it is described at least one from far-end unit be connected to the power supply mould
Block.
6. far end device according to claim 5, which is characterized in that the main far-end unit further includes
For obtaining respectively from the monitoring module of the monitoring information of far-end unit, it is described at least one from far-end unit be connected to institute
State monitoring module.
7. far end device according to claim 6, which is characterized in that the main far-end unit and respectively adopted from far-end unit
Use built-in antenna.
8. multiband distributed system, which is characterized in that including near-end device and far end device, wherein the far end device is
Main far-end unit in the described in any item far end devices of claim 1 to 7, the near-end device and the far end device connects
It connects；
The near-end device is for receiving base station signal framing into optical signal transmission to the main far-end unit；
The main far-end unit is used to carrying out the optical signal into processing to generate the signal for adapting to different frequency range channel, via frequency
The main far-end unit of section adaptation is exported from the antenna of far-end unit.
9. a kind of application system according to any one of claims 8 carries out the distributed downlink signal processing method of multiband, including as follows
Step:
After near-end device obtains base station signal progress framing, pass through optical signal transmission fiber to main far-end unit；
Main far-end unit handles the optical signal, the signal for adapting to different frequency range channel is generated, by different frequency range
Signal is transmitted to antenna output via the main far-end unit of corresponding band or from far-end unit.
10. according to the method described in claim 9, it is characterized in that, the main far-end unit handles the optical signal,
The signal for adapting to different frequency range channel is generated, by the signal of different frequency range via the main far-end unit of corresponding band or from distally
Unit is transmitted to antenna output and is embodied as including the following steps:
The main far-end unit parses the optical signal, generates the synthetic digital signal of multiband, and will according to standard
It is divided into dominant frequency segment signal and multiple from frequency band signals；
By the dominant frequency segment signal and multiple intermediate-freuqncy signal is converted into from frequency band signals；
The intermediate-freuqncy signal that dominant frequency segment signal is converted into carries out frequency conversion, filtering, power amplification and duplexer processing, generates radio frequency letter
It number is exported via antenna；
The multiple intermediate-freuqncy signal be converted to from frequency band signals is exported to corresponding from far-end unit；
Described to handle from far-end unit the intermediate-freuqncy signal progress frequency conversion, filtering, power amplification and the duplexer that receive, generation is penetrated
Frequency signal is exported via antenna.
11. according to the method described in claim 10, it is characterized by further comprising:
It is configured to keep main far-end unit and the consistent reference signal of frequency from far-end unit；
By the reference signal transmission to described from far-end unit；
It is described to be adjusted from far-end unit according to frequency of the reference signal to itself.
12. a kind of application system according to any one of claims 8 carries out the distributed uplink signal processing method of multiband, including as follows
Step:
It is multiple from far-end unit by the signal that antenna obtains different frequency range channel be converted to intermediate-freuqncy signal export it is single to main distal end
Member；
Main far-end unit is by the signal obtained by antenna and after the received intermediate-freuqncy signal of far-end unit is handled, synthesis
The optical signal of multiband is exported to near-end device；
Near-end device exports after handling the optical signal received to corresponding base station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910060032.3A CN109495902A (en) | 2019-01-22 | 2019-01-22 | For the far end device of multiband distributed system, multiband distributed system and to uplink/downlink signals processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910060032.3A CN109495902A (en) | 2019-01-22 | 2019-01-22 | For the far end device of multiband distributed system, multiband distributed system and to uplink/downlink signals processing method |
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| CN109495902A true CN109495902A (en) | 2019-03-19 |
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| CN201910060032.3A Pending CN109495902A (en) | 2019-01-22 | 2019-01-22 | For the far end device of multiband distributed system, multiband distributed system and to uplink/downlink signals processing method |
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| CN109982338A (en) * | 2019-03-26 | 2019-07-05 | 广州开信通讯系统有限公司 | Multi-standard digital fiber compartment system, the method that signal covering is carried out to downlink, uplink using it |
| EP4113864A1 (en) | 2021-06-30 | 2023-01-04 | Rosenberger Technologies Co., Ltd. | Remote unit, multi-band distributed system and signal processing method |
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