CN109547105A - A kind of communication equipment for realizing MIMO transmission - Google Patents
A kind of communication equipment for realizing MIMO transmission Download PDFInfo
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- CN109547105A CN109547105A CN201710866632.XA CN201710866632A CN109547105A CN 109547105 A CN109547105 A CN 109547105A CN 201710866632 A CN201710866632 A CN 201710866632A CN 109547105 A CN109547105 A CN 109547105A
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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
- H04B10/25758—Optical arrangements for wireless networks between a central unit and a single remote unit by means of an optical fibre
- H04B10/25759—Details of the reception of RF signal or the optical conversion before the optical fibre
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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
- H04B10/2581—Multimode transmission
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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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Abstract
Present invention discloses a kind of communication equipments for realizing MIMO transmission, belong to mobile communication technology field.It includes near-end machine and remote termination, the two-way down link signal that near-end machine will receive, down link signal is not frequency converted all the way exports to remote termination, it is exported after another way down link signal is frequency converted to remote termination, remote termination exports the not frequency converted down link signal received, will export after the down link signal of frequency transformation restores to primary frequency；The two-way uplink signal that the remote termination will receive, uplink signal is exported without frequency transformation to near-end machine all the way, it is exported after another way uplink signal is frequency converted to near-end machine, near-end machine exports the not frequency converted uplink signal received, will export after the uplink signal of frequency transformation restores to primary frequency.The present invention realizes the co-cable transmission of signal by the way of frequency conversion, reduces the quantity of optical fiber, reduces production cost.
Description
Technical field
The present invention relates to a kind of mobile communication technology fields, more particularly, to a kind of communication equipment for realizing MIMO transmission.
Background technique
MIMO (Multiple-Input Multiple-Output, multiple-input and multiple-output) refers in transmitting terminal and receiving end point
Not Shi Yong multiple transmitting antennas and receiving antenna, make signal by the mutiple antennas transmission of transmitting terminal and receiving end and receive, from
And improve communication quality.It can make full use of space resources, realize multiple-input multiple-output by mutiple antennas, do not increasing frequency spectrum resource
In the case where antenna transmission power, system channel capacity can be increased exponentially.
With the development of mobile technology, due to the significant advantage of MIMO technology, the forth generation based on MIMO technology is mobile logical
Letter system is using more and more extensive.
When carrying out network coverage construction, when traditional BTS-SISO signal and BTS-MIMO signal all telecommunication optical fibers come into
When the transmission of row signal, due to the differences of frequency, two optical fiber are generally required to realize transmission, increase input cost in this way,
And it is unfavorable for being routed.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, provide it is a kind of using conversion system realize signal be total to cable pass
Defeated communication equipment reduces the quantity of optical fiber, reduces costs.
To achieve the above object, the following technical solutions are proposed: a kind of communication equipment for realizing MIMO transmission by the present invention, including
Near-end machine and remote termination,
The near-end machine will receive two-way down link signal, and the down link signal all the way is not frequency converted defeated
Out to remote termination, output to remote termination, remote termination will be received without frequency after another way down link signal is frequency converted
The down link signal output of rate transformation, will export after the down link signal of frequency transformation restores to primary frequency；
The two-way uplink signal that the remote termination will receive, the uplink signal all the way is without frequency transformation
Output is to near-end machine, and to near-end machine, near-end machine will be received without frequency for output after another way uplink signal is frequency converted
The uplink signal of transformation exports, and will export after the uplink signal of frequency transformation restores to primary frequency.
Preferably, the near-end machine includes
First near end signal input/output module and the second near end signal input/output module, are used in input/output
Downlink signal/down link signal；
The near end signal power amplifier module being connected with the first near end signal input/output module, for uplink signal/
Down link signal carries out signal amplification；
The near end signal frequency-variable module being connected with the second near end signal input/output module, for uplink signal/
Down link signal carries out frequency transformation；
The proximal end combiner being connected near end signal power amplifier module and near end signal frequency-variable module, for downlink
Signal is combined；
The proximal end splitter being connected near end signal power amplifier module and near end signal frequency-variable module, for uplink
Signal carries out branch；
The proximal end photoelectric conversion module being connected with proximal end splitter and proximal end combiner, for by uplink signal/
Down link signal carries out photoelectric conversion.
Preferably, the remote termination includes
First remote signaling input/output module and the second remote signaling input/output module, are used in input/output
Downlink signal/down link signal；
The distal end downlink being connected with the first remote signaling input/output module and the second remote signaling input/output module
Signal processing module, for carrying out signal filter and amplification, frequency transformation to down link signal；
The distal end uplink being connected with the first remote signaling input/output module and the second remote signaling input/output module
Signal processing module, for carrying out signal filter and amplification, frequency transformation to uplink signal；
The distal end splitter being connected with distal end downlink signal processing module, for carrying out branch to down link signal；
The distal end combiner being connected with distal end uplink signal processing module, for being combined to uplink signal；
The distal end photoelectric conversion module being connected with distal end splitter and distal end combiner, for by uplink signal/
Down link signal carries out photoelectric conversion.
Preferably, the near end signal power amplifier module includes proximal end downlink signal amplification module and the amplification of proximal end uplink signal
Module, the proximal end downlink signal amplification module and proximal end uplink signal amplification module include amplifier.
Preferably, the near end signal frequency-variable module includes proximal end downlink signal frequency-variable module and proximal end uplink signal frequency conversion
Module, the proximal end downlink signal frequency-variable module and proximal end uplink signal frequency-variable module include the amplification being sequentially connected in series
Device, frequency mixer, amplifier.
Preferably, the distal end downlink signal processing module includes distal end downlink signal amplification module and distal end downlink signal
Frequency-variable module, the distal end downlink signal amplification module include the amplifier of filter and filters in series, the distal end downlink
Signal frequency conversion module includes the filter, frequency mixer, amplifier being sequentially connected in series.
Preferably, the distal end uplink signal processing module includes distal end uplink signal power amplifier module and distal end uplink signal
Frequency-variable module, the distal end uplink signal amplification module include filter and the amplifier with filters in series, on the distal end
Row signal frequency conversion module includes the filter, frequency mixer, amplifier being sequentially connected in series.
Preferably, the first near end signal input/output module includes the first near-end duplexer, the second proximal end letter
Number input/output module includes the second near-end duplexer, and one end of first near-end duplexer is connected with base station transceiver,
The other end is connected with proximal end downlink signal amplification module and proximal end uplink signal amplification module respectively；Second near-end duplexer
One end be connected with base station transmitter, the other end respectively with proximal end downlink signal frequency-variable module and proximal end uplink signal frequency-variable module
It is connected.
Preferably, the first remote signaling input/output module includes the first far-end duplexe, and second distal end is believed
Number input/output module includes the second far-end duplexe, and first far-end duplexe one end is amplified with distal end downlink signal respectively
Module is connected with distal end uplink signal amplification module；One end of second far-end duplexe respectively with distal end downlink signal frequency-variable module
It is connected with distal end uplink signal frequency-variable module.
Preferably, the first near end signal input/output module includes the first proximal end cavity body filter and the first proximal loop
Shape device, the first proximal annular rim device and the first proximal end cavity body filter, proximal end downlink signal amplification module and proximal end uplink letter
Number amplification module is connected；
The second near end signal input/output module includes the second proximal end cavity body filter and the second proximal annular rim device, institute
State the second proximal annular rim device and the second proximal end cavity body filter, proximal end downlink signal frequency-variable module and proximal end uplink signal frequency conversion mould
Block is connected.
Preferably, the first remote signaling input/output module includes the first distal end cavity body filter, the first distal loop
Shape device and the first far end radio frequency switch, one end of the first distal annular rim device connect with the first distal end cavity body filter, one end
It is connected with distal end downlink signal amplification module, the other end and the first far end radio frequency switch are connected, and first far end radio frequency is opened
Pass is connected with distal end uplink signal amplification module；
The second remote signaling input/output module includes the second distal end cavity body filter, the second distal annular rim device and the
Two far end radio frequencies switch, one end of the second distal annular rim device connect with the second distal end cavity body filter, under one end and distal end
Row signal frequency conversion module is connected, and the other end and the second far end radio frequency switch are connected, the second far end radio frequency switch and distal end
Uplink signal frequency-variable module is connected.
Preferably, the remote termination further includes coupler and synchronizes demodulation and control uplink and downlink timeslot switching
Synchronization module, the coupler are connected between distal end photoelectric conversion module and synchronization module.
The beneficial effects of the present invention are:
Compared with prior art, the communication equipment of the present invention for realizing MIMO transmission, is realized by the way of frequency conversion
The co-cable transmission of signal reduces the quantity of optical fiber, reduces production cost, so that wiring is more convenient.
Detailed description of the invention
Fig. 1 is one FDD communication apparatus functional block diagram schematic diagram of the embodiment of the present invention；
Fig. 2 is two TDD communication apparatus functional block diagram schematic diagram of the embodiment of the present invention.
Specific embodiment
Below in conjunction with attached drawing of the invention, clear, complete description is carried out to the technical solution of the embodiment of the present invention.
(how defeated Multiple-Input Multiple-Output, multi input be by a kind of disclosed realization MIMO
The communication equipment transmitted out), the co-cable transmission of signal is realized by the way of frequency conversion, the quantity of optical fiber is reduced, reduces costs,
Suitable for FDD_LTE communication system, TDD_LTE communication system.
As shown in Figure 1, being a kind of revealed communication equipment for realizing MIMO transmission of inventive embodiments 1, it is suitable for FDD_
The processing of LTE signal comprising near-end machine and remote termination, near-end machine and remote termination are communicated by transmission medium, transmission medium
Including optical cable, coaxial cable etc..In the present embodiment, the transmission that an optical fiber carries out signal is used only in near-end machine and remote termination.
Specifically, near-end machine is connected with base station transceiver (BTS), base station transceiver receive or transmitting SISO signal and
MIMO signal, remote termination are connected with antenna (Antenna).When handling down link signal, near-end machine will receive two-way downlink
Link signal, the two-way down link signal include it is not frequency converted output to remote termination the first down link signal and
It is exported after frequency converted to the second down link signal of remote termination.Not frequency converted first that remote termination will receive
Down link signal is exported by antenna, passes through day after the second down link signal by frequency transformation is restored to primary frequency
Line output.Likewise, remote termination will receive two-way uplink signal by antenna, described when processing uplink signal
Two-way uplink signal include it is not frequency converted output to near-end machine the first uplink signal and it is frequency converted after
It exports to the second uplink signal of near-end machine, the first not frequency converted uplink signal that near-end machine will receive
It is exported by base station transceiver (BTS), is passed through after the second uplink signal by frequency transformation is restored to primary frequency
Base station transceiver (BTS) output.
As shown in Figure 1, near-end machine includes the first near end signal input/output module, the second near end signal input and output mould
Block, near end signal power amplifier module, near end signal frequency-variable module, proximal end combiner, proximal end splitter and proximal end photoelectric conversion mould
Block.In the present embodiment, the first near end signal input/output module is the first near-end duplexer, the second near end signal input and output mould
Block is the second near-end duplexer.
Specifically, SISO signal is separated out the first down link signal by the first near-end duplexer, MIMO signal is passed through
Second near-end duplexer is separated out the second down link signal.SISO signal is separated out the first uplink by the first far-end duplexe
Link signal, MIMO signal are separated out the second uplink signal by the second far-end duplexe.Wherein, the first near-end duplexer
One end with transmission SISO signal base station transceiver (BTS) be connected, the other end is connected near end signal power amplifier module；Second
One end of near-end duplexer is connected with the base station transmitter (BTS) of transmission MIMO signal, the other end and near end signal frequency-variable module
It is connected.Except of course that near end signal power amplifier module and the position of near end signal frequency-variable module can be interchanged except the present embodiment.
Near end signal power amplifier module is used to amplify processing to the first uplink signal/first down link signal,
It includes proximal end downlink signal amplification module and proximal end uplink signal amplification module.The input terminal of proximal end downlink signal amplification module
It is connected with port transmitting (TX) of the first near-end duplexer, output end is connected with the input terminal of proximal end combiner；Proximal end uplink letter
The input terminal of number amplification module is connected with the output end of proximal end splitter, reception (RX) end of output end and the first near-end duplexer
Mouth is connected.
Near end signal frequency-variable module is used to carry out at frequency transformation the second uplink signal/second down link signal
Reason comprising proximal end downlink signal frequency-variable module and proximal end uplink signal frequency-variable module.Proximal end downlink signal frequency-variable module it is defeated
Enter end to be connected with port transmitting (TX) of the second near-end duplexer, the input terminal of output end proximal end combiner is connected；Proximal end uplink
The input terminal of signal frequency conversion module is connected with the output end of proximal end splitter, the reception (RX) of output end and the second near-end duplexer
Port is connected.
Proximal end combiner is connected near end signal power amplifier module and near end signal frequency-variable module, for the first downlink chain
Road signal and the second down link signal are combined processing, and the down link signal after combining is input to proximal end photoelectricity and is turned
Changing the mold and carrying out electrotransformation in block is light；Proximal end splitter is connected near end signal power amplifier module and near end signal frequency-variable module,
For carrying out branch process to the uplink signal after combining, the first down link signal and the second downlink letter are isolated
Number.Proximal end photoelectric conversion module is connected with proximal end splitter and proximal end combiner, for uplink signal/downlink
Signal carries out photoelectric conversion, also passes through optical fiber and is connected with the photoelectric conversion module in remote termination.
As shown in Figure 1, remote termination includes the first remote signaling input/output module, the second remote signaling input and output mould
Block, distal end downlink signal processing module, distal end uplink signal processing module, distal end combiner, distal end splitter and distal end light
Electric conversion module.In the present embodiment, the first remote signaling input/output module is the first far-end duplexe, and the second remote signaling is defeated
Entering output module is the second far-end duplexe.
Specifically, one end of the first far-end duplexe is respectively and at distal end uplink signal processing module and distal end downlink signal
It manages module to be connected, the other end is connected with the antenna of transmitting SISO signal；One end of second far-end duplexe respectively with distal end uplink
Signal processing module is connected with distal end downlink signal processing module, and the other end is connected with the antenna of transmitting MIMO signal.Certainly it removes
Except the present embodiment, when the position of near end signal power amplifier module and near end signal frequency-variable module changes, the letter of distal end
Corresponding change is also wanted in the position of number amplification module and signal frequency conversion module.
Distal end downlink signal processing module includes distal end downlink signal amplification module and distal end downlink signal frequency-variable module.Far
End downlink signal amplification module is used to be filtered the first down link signal enhanced processing, input terminal and distal end splitter
Output end be connected, output end is connected with port transmission (TX) of the first far-end duplexe；Distal end downlink signal frequency-variable module is used
In carrying out frequency conversion process to the second down link signal, extremely by the frequency retrieval of the down link signal Jing Guo frequency transformation
Primary frequency, input terminal are connected with the output end of distal end splitter, port transmitting (TX) of output end and the second far-end duplexe
It is connected.
Distal end uplink signal processing module includes distal end uplink signal amplification module and distal end uplink signal frequency-variable module.Far
End uplink signal amplification module is used to be filtered the first uplink signal enhanced processing, and input terminal and the first distal end are double
The reception port (RX) of work device is connected, and output end is connected with the input terminal of distal end combiner；Distal end uplink signal frequency-variable module is used
In to the second uplink signal progress frequency conversion process, the port reception (RX) phase of input terminal and the second far-end duplexe
Even, output end is connected with the input terminal of distal end combiner.
Distal end combiner is connected with distal end uplink signal processing module, for the first uplink signal and the second uplink
Link signal is combined processing, and the uplink signal after combining is input in the photoelectric conversion module of distal end and carries out electricity turn
Turn to light；Distal end splitter is connected with distal end downlink signal processing module, for dividing the down link signal after combining
Road processing, isolates the first uplink signal and the second uplink signal.Distal end photoelectric conversion module and proximal end photoelectricity turn
It changes the mold block to be connected by optical fiber, for carrying out photoelectric conversion to uplink signal/down link signal.
In the present embodiment, proximal end uplink signal amplification module and proximal end downlink signal amplification module are put including at least one
Big device；Proximal end downlink signal frequency-variable module and proximal end uplink signal frequency-variable module include the amplifier being sequentially connected in series, mix
Frequency device and amplifier；Distal end downlink signal amplification module and distal end uplink signal amplification module include the filter being sequentially connected in series
Wave device and amplifier with filters in series；Distal end downlink signal frequency-variable module and distal end uplink signal frequency-variable module include according to
Filter, frequency mixer and the amplifier of secondary series connection.
The working principle of the communication equipment of above-mentioned realization MIMO transmission is as follows:
The processing of down link signal: after the first down link signal is separated by the first near-end duplexer, into proximal end
In downlink signal amplification module, output is into proximal end combiner after being amplified；Second down link signal is double by the second proximal end
After the separation of work device, into the downlink signal frequency-variable module of proximal end.The second downlink signal passes through in the downlink signal frequency-variable module of proximal end
It is input in frequency mixer after crossing amplification, after frequency mixer is mixed with local oscillated signal, is changed into and the first down link signal
Frequency it is identical, again pass by amplification after output into proximal end combiner.Since two-way down link signal frequency is identical close
It holds after being combined in combiner, is sent in remote termination by proximal end photoelectric conversion module.Distal end photoelectric conversion mould in remote termination
Block receives signal and is input in the splitter of distal end, and distal end splitter separates downlink signal, is finally recovered out under two-way
Row signal, all the way the first not frequency converted down link signal, all the way the second down link signal Jing Guo frequency transformation.
The first not frequency converted down link signal enters in the downlink signal amplification module of distal end, passes through after filtering, amplifying
The transmitting port (TX) of first far-end duplexe inputs in the first far-end duplexe, exports eventually by antenna；Become through overfrequency
The second down link signal changed enters distal end downlink signal frequency-variable module, after filtering, into frequency mixer.Frequency mixer with
Local oscillated signal mixing transforms it into primary frequency, and is inputted after amplifying by the transmitting port (TX) of the second far-end duplexe
In second far-end duplexe, exported eventually by antenna.
The processing of uplink signal: after the first uplink signal is separated by the first far-end duplexe, into distal end
In uplink signal amplification module, output is into distal end combiner after being amplified；Second uplink signal is double by the second distal end
After the separation of work device, into the uplink signal frequency translation module of distal end, signal is passed through in the uplink signal frequency translation module of distal end
Enter in frequency mixer after crossing filtering.After frequency mixer is mixed with local oscillated signal, it is changed into and the first down link signal
Frequency is identical, and output is into distal end combiner after again passing by amplification, since two-way uplink signal frequency is identical in distal end
After being combined in combiner, it is sent in near-end machine by distal end photoelectric conversion module.Proximal end photoelectric conversion module in near-end machine
It receives signal and is input in the splitter of proximal end, proximal end splitter separates uplink signal, is finally recovered out two-way downlink
Signal, all the way the first not frequency converted uplink signal, all the way the second uplink signal Jing Guo frequency transformation.Not
The first frequency converted uplink signal enters in the uplink signal amplification module of proximal end, passes through the first proximal end after amplification
The reception port (RX) of duplexer inputs in the first near-end duplexer, exports eventually by base station transceiver；Become through overfrequency
The second uplink signal changed enters proximal end uplink signal frequency-variable module.In the uplink frequency-variable module of proximal end, after amplification,
Into in frequency mixer.It is mixed in frequency mixer with local oscillated signal, transforms it into primary frequency, pass through second after amplifying again
The reception port (RX) of near-end duplexer inputs in the second near-end duplexer, exports eventually by base station transceiver.
As shown in Fig. 2, being a kind of revealed communication equipment for realizing MIMO transmission of inventive embodiments 2, it is suitable for TDD_
The processing of LTE signal.Unlike the first embodiment, first near end signal input/output module includes in the near-end machine of embodiment 2
First proximal end cavity body filter and the first proximal annular rim device；Second near end signal input/output module is filtered including the second proximal end cavity
Wave device and the second proximal annular rim device.Wherein, one end of the first proximal annular rim device is connected with the first proximal end cavity body filter, the other end
It is connected near end signal power amplifier module.Likewise, one end of the second proximal annular rim device is connected with the second proximal end cavity body filter, separately
One end is connected near end signal frequency-variable module.The first remote signaling input/output module is filtered including the first distal end cavity in remote termination
Wave device, the first distal annular rim device and the first far end radio frequency switch, the second remote signaling input/output module include the second distal chamber
Fluid filter, the second distal annular rim device and the second far end radio frequency switch.Wherein, one end of the first distal annular rim device and the first distal end
Cavity body filter connects, and one end is connected with distal end downlink signal amplification module, and the other end is connected with the first far end radio frequency switch, the
One far end radio frequency switch is connected with the input terminal of distal end uplink signal amplification module.One end of second distal annular rim device is remote with second
End cavity body filter connects, and one end is connected with the second far end radio frequency switch, and the other end is connected with distal end downlink signal frequency-variable module,
Second far end radio frequency switch connects with the input terminal of distal end uplink signal frequency-variable module.
Meanwhile coupler and synchronization module are additionally provided in remote termination, the transmitting of coupler and distal end photoelectric conversion module
(TX) port is connected with distal end splitter.For coupled signal to synchronization module, synchronization module obtains synchronous letter all the way for coupler output
The time slot switching up and down of high level/low level control, i.e. progress descending time slot are exported by GPIO (universal input/output) mouth after number
It switches to ascending time slot or ascending time slot switches to descending time slot.
The working principle of the communication equipment of above-mentioned realization MIMO transmission is as follows:
The processing of down link signal: the first down link signal enters in the first proximal end cavity body filter and after filtering
Into the first proximal annular rim device, the downlink signal exported from the first proximal annular rim device is put through proximal end downlink signal amplification module for output
Output is into proximal end combiner after big；Second down link signal enters in the second proximal end cavity body filter and exports after filtering
Into the second proximal annular rim device, the downlink signal exported from the second proximal annular rim device enters in the downlink signal frequency-variable module of proximal end,
Make to enter back into the combiner of proximal end after the frequency of the first, second downlink is identical after frequency transformation, two-way downlink letter
Number combining after output into proximal end photoelectric conversion module, proximal end photoelectric conversion module by the downlink signal after combining be transmitted to distal end
In machine.Distal end photoelectric conversion module will be exported by port transmitting (TX) thereon to coupler after signal progress photoelectricity variation,
Coupled signal can control uplink and downlink timeslot switching to synchronization module all the way for coupler output.Time slot switch switching
When to descending time slot, down link signal enters distal end downlink signal amplification module by distal end splitter all the way, enters all the way
Distal end downlink signal frequency-variable module.It is exported by filter and amplification to the first distal annular rim in the downlink signal amplification module of distal end
Device, and exported after being filtered by the first distal end cavity body filter；After switching back to primary frequency in the downlink signal frequency-variable module of distal end
Circulator is entered to, and is exported after being filtered by the second distal end cavity body filter.
The processing of uplink signal: the first uplink signal enters in the first distal end cavity body filter and after filtering
Output is into the first distal annular rim device.Second uplink signal enters in the second distal end cavity body filter filter after be input to the
In two distal annular rim devices.The uplink and downlink timeslot switching of synchronization module control, when switching to ascending time slot, the first distal loop
The signal of shape device output enters distal end uplink signal amplification module by the first far end radio frequency switch, is input to after filter and amplification remote
Hold combiner；The signal of second distal annular rim device output enters distal end uplink signal frequency-variable module by the second far end radio frequency switch
In, make to be input to distal end combiner after the frequency of the first, second uplink is identical after frequency converted, two paths of signals is remote
It is sent in near-end machine after being combined in the combiner of end by distal end photoelectric conversion module.Proximal end photoelectric conversion module in near-end machine
It receives signal and is input in the splitter of proximal end, proximal end splitter separates two-way uplink signal, becomes without frequency
The first uplink signal changed enters in the uplink signal amplification module of proximal end, exports after amplification to the first proximal annular rim
Device is exported after the filtering of the first proximal end cavity body filter by base station transceiver (BTS) after the output of the first proximal annular rim device；
The second uplink signal by frequency transformation enters proximal end uplink signal frequency-variable module, transforms it into primary frequency and amplifies
After export to the second proximal annular rim device, pass through base after the filtering of the second proximal end cavity body filter after the output of the second proximal annular rim device
Stand transceiver (BTS) output.
Technology contents and technical characteristic of the invention have revealed that as above, however those skilled in the art still may base
Make various replacements and modification without departing substantially from spirit of that invention, therefore, the scope of the present invention in teachings of the present invention and announcement
It should be not limited to the revealed content of embodiment, and should include various without departing substantially from replacement and modification of the invention, and be this patent Shen
Please claim covered.
Claims (12)
1. a kind of communication equipment for realizing MIMO transmission, which is characterized in that including near-end machine and remote termination,
The near-end machine will receive two-way down link signal, and the not frequency converted output of the down link signal all the way is extremely
Remote termination, output to remote termination, remote termination becomes what is received without frequency after another way down link signal is frequency converted
The down link signal output changed, will export after the down link signal of frequency transformation restores to primary frequency；
The remote termination will receive two-way uplink signal, the uplink signal all the way without frequency transformation export to
Near-end machine, output to near-end machine, near-end machine becomes what is received without frequency after another way uplink signal is frequency converted
The uplink signal output changed, will export after the uplink signal of frequency transformation restores to primary frequency.
2. a kind of communication equipment for realizing MIMO transmission according to claim 1, which is characterized in that the near-end machine includes
First near end signal input/output module and the second near end signal input/output module, are used to input/output uplink
Road signal/down link signal；
The near end signal power amplifier module being connected with the first near end signal input/output module, for uplink signal/downlink
Link signal carries out signal amplification；
The near end signal frequency-variable module being connected with the second near end signal input/output module, for uplink signal/downlink
Link signal carries out frequency transformation；
The proximal end combiner being connected near end signal power amplifier module and near end signal frequency-variable module, for down link signal
It is combined；
The proximal end splitter being connected near end signal power amplifier module and near end signal frequency-variable module, for uplink signal
Carry out branch；
The proximal end photoelectric conversion module being connected with proximal end splitter and proximal end combiner, for uplink signal/downlink
Link signal carries out photoelectric conversion.
3. a kind of communication equipment for realizing MIMO transmission according to claim 1, which is characterized in that the remote termination includes
First remote signaling input/output module and the second remote signaling input/output module, are used to input/output uplink
Road signal/down link signal；
The distal end downlink signal being connected with the first remote signaling input/output module and the second remote signaling input/output module
Processing module, for carrying out signal filter and amplification, frequency transformation to down link signal；
The distal end uplink signal being connected with the first remote signaling input/output module and the second remote signaling input/output module
Processing module, for carrying out signal filter and amplification, frequency transformation to uplink signal；
The distal end splitter being connected with distal end downlink signal processing module, for carrying out branch to down link signal；
The distal end combiner being connected with distal end uplink signal processing module, for being combined to uplink signal；
The distal end photoelectric conversion module being connected with distal end splitter and distal end combiner is used for uplink signal/downlink
Link signal carries out photoelectric conversion.
4. a kind of communication equipment for realizing MIMO transmission according to claim 2, which is characterized in that the near end signal function
Amplification module includes proximal end downlink signal amplification module and proximal end uplink signal amplification module, the proximal end downlink signal amplification module
It include amplifier with proximal end uplink signal amplification module.
5. a kind of communication equipment for realizing MIMO transmission according to claim 4, which is characterized in that the near end signal becomes
Frequency module includes proximal end downlink signal frequency-variable module and proximal end uplink signal frequency-variable module, the proximal end downlink signal frequency-variable module
It include the amplifier, frequency mixer, amplifier being sequentially connected in series with proximal end uplink signal frequency-variable module.
6. a kind of communication equipment for realizing MIMO transmission according to claim 3, which is characterized in that the distal end downlink letter
Number processing module includes distal end downlink signal amplification module and distal end downlink signal frequency-variable module, the distal end downlink signal amplification
Module includes filter and the amplifier with filters in series, and the distal end downlink signal frequency-variable module includes being sequentially connected in series
Filter, frequency mixer, amplifier.
7. a kind of communication equipment for realizing MIMO transmission according to claim 6, which is characterized in that the distal end uplink letter
Number processing module includes distal end uplink signal amplification module and distal end uplink signal frequency-variable module, the distal end uplink signal amplification
Module includes the amplifier of filter and filters in series, and the distal end uplink signal frequency-variable module includes being sequentially connected in series
Filter, frequency mixer, amplifier.
8. a kind of communication equipment for realizing MIMO transmission according to claim 5, which is characterized in that the first proximal end letter
Number input/output module includes the first near-end duplexer, and the second near end signal input/output module includes the second proximal end duplex
One end of device, first near-end duplexer is connected with base station transceiver, and the other end amplifies mould with proximal end downlink signal respectively
Block is connected with proximal end uplink signal amplification module；One end of second near-end duplexer is connected with base station transmitter, the other end
It is connected respectively with proximal end downlink signal frequency-variable module and proximal end uplink signal frequency-variable module.
9. a kind of communication equipment for realizing MIMO transmission according to claim 7, which is characterized in that believe first distal end
Number input/output module includes the first far-end duplexe, and the second remote signaling input/output module includes the second distal end duplex
Device, first far-end duplexe one end respectively with distal end downlink signal amplification module and distal end uplink signal amplification module phase
Even；One end of second far-end duplexe is connected with distal end downlink signal frequency-variable module and distal end uplink signal frequency-variable module respectively.
10. a kind of communication equipment for realizing MIMO transmission according to claim 5, which is characterized in that first proximal end
Signal input/output module includes the first proximal end cavity body filter and the first proximal annular rim device, the first proximal annular rim device and the
One proximal end cavity body filter, proximal end downlink signal amplification module are connected with proximal end uplink signal amplification module；
The second near end signal input/output module includes the second proximal end cavity body filter and the second proximal annular rim device, and described the
Two proximal annular rim devices and the second proximal end cavity body filter, proximal end downlink signal frequency-variable module and proximal end uplink signal frequency-variable module are equal
It is connected.
11. a kind of communication equipment for realizing MIMO transmission according to claim 7, which is characterized in that first distal end
Signal input/output module includes that the first distal end cavity body filter, the first distal annular rim device and the first far end radio frequency switch, described
One end of first distal annular rim device connects with the first distal end cavity body filter, and one end is connected with distal end downlink signal amplification module,
The other end and the first far end radio frequency switch are connected, and the first far end radio frequency switch is connected with distal end uplink signal amplification module；
The second remote signaling input/output module includes that the second distal end cavity body filter, the second distal annular rim device and second are remote
RF switch is held, one end of the second distal annular rim device is connected with the second distal end cavity body filter, and one end and distal end downlink are believed
Number frequency-variable module is connected, and the other end and the second far end radio frequency switch are connected, and the second far end radio frequency switch is believed with distal end uplink
Number frequency-variable module is connected.
12. a kind of communication equipment for realizing MIMO transmission according to claim 7, which is characterized in that the remote termination is also
It including coupler and synchronizes demodulation and controls the synchronization module of uplink and downlink timeslot switching, the coupler is connected to far
It holds between photoelectric conversion module and synchronization module.
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Address after: 215300 No.6 Shen'an Road, Dianshanhu Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: ProLogis Communication Technology (Suzhou) Co.,Ltd. Address before: 215345 No. 6 Shen'an Road, Dianshan Lake Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: Rosenberg Technology Co.,Ltd. |