CN208820780U - Multi-standard radio frequency access system and equipment - Google Patents
Multi-standard radio frequency access system and equipment Download PDFInfo
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- CN208820780U CN208820780U CN201821716526.XU CN201821716526U CN208820780U CN 208820780 U CN208820780 U CN 208820780U CN 201821716526 U CN201821716526 U CN 201821716526U CN 208820780 U CN208820780 U CN 208820780U
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Abstract
This application involves a kind of multi-standard radio frequency access system and equipment, including isolation mode group, for connecting the combining and interface selection mould group of external interface, and the wide band radio-frequency transmitting-receiving mould group for connecting transceiver；Isolation mode group connects wide band radio-frequency and receives and dispatches mould group；The signal output end of the receiving end connection wide band radio-frequency transmitting-receiving mould group of combining and interface selection mould group, transmitting terminal connect the signal input part of wide band radio-frequency transmitting-receiving mould group.The application, which passes through, selects mould group using combining and interface, and selecting corresponding external interface that can support includes feeder line and the connection of POI, avoids hardware modification caused by external interface mismatch；Combining and interface selection mould group can support wideband to be combined, by the way that wide band radio-frequency is received and dispatched mould group connection combining and interface selection mould group, the function in multiple narrow radio frequency channels is completed using single wide band radio-frequency channel, it avoids needing to design different transmitting-receiving mould groups for different frequency range, reduces the cost of multi-standard radio frequency access system.
Description
Technical field
This application involves RF applications, more particularly to a kind of multi-standard radio frequency access system and equipment.
Background technique
With the development of mobile communication technology, there is 2G (2nd Generation wireless telephone
Technology, second generation mobile communication technical specification), 3G (3rd Generation mobile communication
Technology, 3rd generation mobile communication technology) and 4G (the 4th Generation mobile communication
Technology, fourth generation mobile communication technology), wherein different mobile communication technologies includes different specific standards, such as 4G
Including TDD (Time Division Duplexing, time division duplex) mode and FDD (Frequency Division
Duplexing, frequency division duplex) mode.To provide the network coverage of different systems, traditional technology is based on MAU (Multi
Access Unit, muti-service access unit) Lai Shixian.
During realization, inventor has found that at least there are the following problems in traditional technology: due to switching different standards
It will lead to the change of frequency range, to need replacing the part of devices of equipment, current traditional technology has that cost is excessively high.
Utility model content
Based on this, it is necessary in view of the above technical problems, provide one kind multi-standard radio frequency access system at low cost and set
It is standby.
To achieve the goals above, on the one hand, the utility model embodiment provides a kind of multi-standard radio frequency access system,
Including isolation mode group, combining and interface for connecting external interface select mould group, and the broadband for connecting transceiver is penetrated
Frequency transmitting-receiving mould group；Isolation mode group connects wide band radio-frequency and receives and dispatches mould group；
The signal output end of the receiving end connection wide band radio-frequency transmitting-receiving mould group of combining and interface selection mould group, transmitting terminal connection
The signal input part of wide band radio-frequency transmitting-receiving mould group.
The receiving end of combining and interface selection mould group includes that the first receiving end and second receive in one of the embodiments,
End；The transmitting terminal of combining and interface selection mould group includes the first transmitting terminal and the second transmitting terminal；
First receiving end is for connecting external interface；Second receiving end connection signal output end；First transmitting terminal connection letter
Number input terminal；Second transmitting terminal is for connecting external interface.
Combining and interface selection mould group include combining module in one of the embodiments, and connect combining module
Interface selecting module；
It is combined the first end connection signal input terminal of module, is combined the second end of module for connecting external interface；
The second end of the first end connection signal output end of interface selecting module, interface selecting module connects for connecting outside
Mouthful.
Combining module includes combiner in one of the embodiments,；Interface selecting module includes the first RF switch, the
Two RF switches, third RF switch, the first load and the second load；
First pin connection signal input terminal of combiner, the second pin of combiner connect the first of the first RF switch
End, the third pin of combiner is for connecting external interface；
The first load of second end connection of first RF switch, the third end of the first RF switch connects the second RF switch
Second end；
The third end connection third radio frequency of the first end connection signal output end of second RF switch, the second RF switch is opened
The second end of pass；
The first end of third RF switch connects external interface, the second load of third end connection of third RF switch.
Wide band radio-frequency transmitting-receiving mould group includes being connected to transceiver and combining and interface selection mould in one of the embodiments,
Receiving module, sending module between group.
Receiving module includes the first attenuator and the first broadband function for connecting transceiver in one of the embodiments,
Rate amplifier；Sending module includes the second attenuator and the second wideband power amplifer for connecting transceiver；
The input terminal connection combining of first attenuator and the transmitting terminal of interface selection mould group, the output end of the first attenuator connect
Connect the input terminal of the first wideband power amplifer；
The input terminal of second attenuator connects the output end of the second wideband power amplifer, and the output end of the second attenuator connects
Engage the receiving end on road and interface selection mould group.
Isolation mode group includes the first isolation module and the second isolation module in one of the embodiments,；
First isolation module includes the first phase inverter and the first metal-oxide-semiconductor；
Second isolation module includes the second phase inverter and the second metal-oxide-semiconductor；
The input terminal of first phase inverter connects corresponding control signal input, the output end connection first of the first phase inverter
The grid of metal-oxide-semiconductor, the source electrode of the first metal-oxide-semiconductor connect charger, and the drain electrode of the first metal-oxide-semiconductor connects receiving module；
The input terminal of second phase inverter is for connecting corresponding control signal input, the output end connection of the second phase inverter
The grid of second metal-oxide-semiconductor, the source electrode of the second metal-oxide-semiconductor is for connecting charger, drain electrode connection sending module.
It in one of the embodiments, also further include communications module；
Communications module and wide band radio-frequency transmitting-receiving mould group communication connection.
It in one of the embodiments, further include monitoring mould group；
Monitoring mould group includes the sensor of controller and connection controller；
Controller, sensor are separately connected wide band radio-frequency transmitting-receiving mould group.
On the other hand, the utility model embodiment additionally provides a kind of multi-standard radio frequency access device, including above-mentioned any
One multi-standard radio frequency access system, and the terminal of connection multi-standard radio frequency access system.
A technical solution in above-mentioned technical proposal is had the following advantages and beneficial effects:
By selecting mould group using combining and interface, the various combination mode of external interface can adapt to, by selecting phase
The external interface answered can support include RRU and POI connection, avoid external interface mismatch caused by hardware modification；It is another
Aspect, combining and interface selection mould group can support the combining of wideband (for example, 698MHz to 2700MHz), be received and dispatched by connection
The wide band radio-frequency of machine receives and dispatches mould group, and the signal output end connection combining of wide band radio-frequency transmitting-receiving mould group and interface are selected connecing for mould group
The transmitting terminal of receiving end, signal input part connection combining and interface selection mould group, using single in wide band radio-frequency transmitting-receiving mould group
The function in multiple narrow radio frequency channels is completed in wide band radio-frequency channel, i.e., multiband branch can be realized using single wide band radio-frequency channel
It holds, and then meets the radio frequency access demand of multi-standard, avoid needing to distinguish for different systems and different frequency range in systems
Using different transmitting-receiving mould groups, the cost of multi-standard radio frequency access system is reduced.
Detailed description of the invention
By being more particularly described for the preferred embodiment of the utility model shown in the drawings, addressed on the utility model
Other purposes, feature and advantage will become more fully apparent.Identical appended drawing reference indicates identical part in all the attached drawings, and
Attached drawing deliberately is not drawn by actual size equal proportion scaling, it is preferred that emphasis is the purport of the utility model is shown.
Fig. 1 is the system block diagram of traditional equipment；
Fig. 2 is the first schematic block diagram of multi-standard radio frequency access system in one embodiment；
Fig. 3 is the second schematic block diagram of multi-standard radio frequency access system in one embodiment；
Fig. 4 is that combining and interface select the structural schematic diagram of mould group in multi-standard radio frequency access system in one embodiment；
Fig. 5 is the structural schematic diagram of multi-standard radio frequency access system middle width strip radio-frequency receiving-transmitting mould group in one embodiment；
Fig. 6 is the structural schematic diagram of isolation mode group in multi-standard radio frequency access system in one embodiment；
Fig. 7 is the third schematic block diagram of multi-standard radio frequency access system in one embodiment.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms in fact
It is existing, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes public affairs to the utility model
It is more thorough and comprehensive to open content.
It should be noted that it can be directly to separately when an element is considered as " connection " another element
One element and it is in combination be integrated, or may be simultaneously present centering elements.Term as used herein " connection " " connects
Receiving end ", " transmitting terminal " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
The system block diagram of traditional multimode fibre access system MAU as shown in Figure 1, include transceiver, signal transmission module,
Be combined module and antenna, wherein when standard is different, uplink (i.e. signal link that base station is transmitted to from terminal) and
The combining mode of downlink (i.e. signal link that terminal is transmitted to from base station) is different.Therefore, traditional equipment can only prop up
Hold a kind of network formats, be unable to satisfy multi-standard radio frequency access, as develop be TDD standard equipment if be unable to satisfy FDD
The market demand of standard.
Wherein, for fdd mode, being combined module is usually duplexer, when frequency range changes, needs to carry out the replacement of hardware
Or transformation, as GSM (Global System For Mobile Communications, global system for mobile communications) by
When 20MHz bandwidth of operation is upgraded to 24MHz, need to carry out hardware replacement to combining module；For tdd mode, it is logical to be combined module
It is often switch or circulator, wherein circulator is generally narrowband operation, when frequency range variation, is such as switched to by BAND39
When BAND41, need to carry out the replacement of circulator.As it can be seen that when needing support other frequency ranges under same standard, traditional equipment
Carry out the replacement of hardware.Therefore, the development cycle of traditional equipment is long, cannot respond rapidly to the market demand, caused design
It is at high cost.
And the mentality of designing of the multimode multifrequency transceiver of TDD and fdd mode can be compatible with primarily directed to different standards
And different frequency ranges uses different transmitting-receiving mould groups respectively, i.e. the circuit has multiple receiving modules and transmitting module simultaneously,
Cause the circuit of multimode multifrequency transceiver complicated, higher cost.
In addition to this, the external interface of conditional access system designs the system primarily directed to the distal end RRU feeder line, if wanted
Realize POI (Point of Interface, multisystem mixing platform) in application, also need carry out hardware modification.
As it can be seen that when needing to carry out the access of multi-standard radio frequency, on the one hand, traditional multimode fibre access system needs are directed to
Different modes and different frequency ranges replace hardware；On the other hand, traditional multimode multifrequency transceiver is needed for different
Mode and different frequency ranges design different transceiver modules；When realizing POI's in application, needing to carry out hardware modification.Therefore,
Traditional technology has that cost is excessively high.
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not
For limiting the application.
In one embodiment, as shown in Fig. 2, providing a kind of multi-standard radio frequency access system, including isolation mode group
210, for connecting the combining and interface selection mould group 220 of external interface, and the wide band radio-frequency receipts for connecting transceiver 230
Send out mould group 240；Isolation mode group 210 connects wide band radio-frequency and receives and dispatches mould group 240；
The signal output end of the receiving end connection wide band radio-frequency transmitting-receiving mould group 240 of combining and interface selection mould group 220, sends
The signal input part of end connection wide band radio-frequency transmitting-receiving mould group 240.
It wherein, can be by selecting corresponding external interface to support answering for direct feeder line access in a manner of RRU and POI
With；It should be noted that can be by one or more external interface, while connecting different feeder line or POI.
Specifically, when system receives radiofrequency signal, radiofrequency signal is transmitted to combining by external interface and interface selects
Mould group 220, combining and interface select mould group 220 according to the difference of standard, using different combining modes, to the radio frequency received
Signal and the radiofrequency signal of transmission are combined.Wherein, the radiofrequency signal received selects mould group 220 by combining and interface,
By the signal input part input of wide band radio-frequency transmitting-receiving mould group 240, since wide band radio-frequency transmitting-receiving mould group 240 is for connecting transceiver
230, therefore the radiofrequency signal received can receive and dispatch mould group 240 by wide band radio-frequency and be input in transceiver 230, in transceiver
Signal conversion is carried out in 230.When system sends radiofrequency signal, the radiofrequency signal of transmission receives and dispatches mould group 240 by wide band radio-frequency
Signal output end be sent to combining and interface selection mould group 220, by combining and interface selection mould group 220 receiving end input
Mould group 220 is selected to combining and interface, combining and interface selection mould group 220 utilize external interface to send radiofrequency signal.Passing through will
Isolation mode group 210 connects wide band radio-frequency and receives and dispatches mould group 240, can be improved the isolation of system in tdd mode.
In a specific embodiment, the receiving end of combining and interface selection mould group 220 includes the first receiving end and the
Two receiving ends；The transmitting terminal of combining and interface selection mould group 220 includes the first transmitting terminal and the second transmitting terminal；
First receiving end is for connecting external interface；Second receiving end connection signal output end；First transmitting terminal connection letter
Number input terminal；Second transmitting terminal is for connecting external interface.
Specifically, when system receives radiofrequency signal, radiofrequency signal is transmitted to combining by the first receiving end and interface selects
Select mould group 220, combining and interface selection mould group 220 are according to the difference of standard, using different combining modes, to receive signal and
Signal is sent to be combined.Wherein, the radiofrequency signal received selects the first transmitting terminal hair of mould group 220 by combining and interface
Wide band radio-frequency transmitting-receiving mould group 240 is given, and is input to wide band radio-frequency transmitting-receiving mould group 240 by signal input part.When system is sent
When radiofrequency signal, the radiofrequency signal of transmission receives and dispatches mould group 240 by wide band radio-frequency, is input to combining by the second receiving end and connects
Mouth selection mould group 220, and by the second transmitting terminal, utilize external interface to send radiofrequency signal.By the way that isolation mode group 210 is connected
Wide band radio-frequency receives and dispatches mould group 240, can be improved the isolation under tdd mode.
It is corresponding by selecting by selecting mould group 220 using combining and interface in above-mentioned multi-standard radio frequency access system
External interface can both support the direct feeder line of RRU mode to access, and can also support the application of POI, can adapt to external interface not
Same combination avoids external interface from mismatching caused hardware modification；On the other hand, combining and interface select mould group 220
The combining that can support wideband, the wide band radio-frequency by connecting transceiver 230 receive and dispatch mould group 240, wide band radio-frequency are received and dispatched mould group
240 signal output end connection combining and the receiving end of interface selection mould group 220, signal input part connection combining and interface selection
The transmitting terminal of mould group 220 completes multiple narrow radio frequencies using the single wide band radio-frequency channel in wide band radio-frequency transmitting-receiving mould group 240
The function in channel can be realized multiband using single wide band radio-frequency channel and support, and then meet the radio frequency access of multi-standard
Demand is avoided needing to use different transmitting-receiving mould groups respectively for different systems and different frequency range in systems, be reduced more
The cost of standard radio frequency access system.
In one embodiment, as shown in figure 3, providing a kind of multi-standard radio frequency access system, including isolation mode group
310, for connecting the combining and interface selection mould group 320 of external interface, and the wide band radio-frequency receipts for connecting transceiver 330
Send out mould group 340；Isolation mode group 310 connects wide band radio-frequency and receives and dispatches mould group 340；
The signal output end of the receiving end connection wide band radio-frequency transmitting-receiving mould group 340 of combining and interface selection mould group 320, sends
The signal input part of end connection wide band radio-frequency transmitting-receiving mould group 340.
Wherein, combining and interface selection mould group 320 include combining module 322, and the interface choosing of connection combining module 322
Select module 324；
It is combined the first end connection signal input terminal of module 322, the second end of combining module 322 connects for connecting outside
Mouthful；
The first end connection signal output end of interface selecting module 324, the second end of interface selecting module 324 is for connecting
External interface.
Wherein, combining module 322 is for realizing wideband combining；Interface selecting module 324 can select phase according to configuration mode
The external interface answered.It should be noted that configuration mode may include connection feeder line and connection POI.
In a specific embodiment, as shown in figure 4, combining module 410 includes combiner 411；Interface selecting module
420 is negative including the first RF switch 421, the second RF switch 422, the load of third RF switch 423, first 424 and second
Carry 425；
Second pin of the first pin connection signal input terminal of combiner 411, combiner 411 connects the first RF switch
421 first end, the third pin of combiner 411 is for connecting external interface；
The first load 424 of second end connection of first RF switch 421, the third end of the first RF switch 421 connection the
The second end of two RF switches 422；
The third end of the first end connection signal output end of second RF switch 422, the second RF switch 422 connects third
The second end of RF switch 423；
The first end of third RF switch 423 connects external interface, and the third end connection second of third RF switch 423 is negative
Carry 425.
Wherein, combiner 411 can be broadband combiner, specifically, can be electric bridge or combiner device；First load
424 and second load the load that 425 can be 50 ohm；First RF switch 421, the second RF switch 422 and third are penetrated
Frequency switch 423 can choose RFSW8000TR7 model RF switch.
The configuration mode that external interface selecting module 420 can be arranged according to software, controls the first RF switch 421, second
The closed state of RF switch 422 and third RF switch 423, to realize the corresponding external interface of selection.
Specifically, when needing to connect POI by external interface, the first pin and third pipe of the second RF switch 422
Foot connection, the first pin of third RF switch 423 and the connection of the second pin, so that (i.e. radiofrequency signal passes through broadband to TX link
Radio-frequency receiving-transmitting mould group is sent to the access of combining and interface selection mould group from transceiver) it is connected to external POI system, while the
First pin of one RF switch 421 and the connection of the second pin, i.e., combiner 411 is connected to the first load 424, by that will be combined
Second pin of device 411 connects load, guarantees the third pin matching of combiner 411, improves circuit stability.When needs pass through
When external interface connects feeder line, the first pin of the first RF switch 421 is connect with third pin, the second RF switch 422
First pin and the connection of the second pin, so that TX link connection is to combiner 411, to realize and RX link (i.e. radiofrequency signal
It is input to combining and interface selection mould group from external interface, the access that mould group is sent to transceiver is received and dispatched by wide band radio-frequency) into
Row is combined, and connects feeder line, while the first pin of third RF switch 423 is connect with third pin, i.e. third RF switch
423 are connected to the second load 425, avoid external feeder line unloaded
In above-mentioned multi-standard radio frequency access system, on the one hand, by changing the engagement state of RF switch, both guarantee to connect
When POI system, the matching of combiner pin, and it is avoided that unloaded when connection feeder line, it ensure that the standing wave of external feeder line, so as to
Enough realize good matching；On the other hand, by the combination of broadband combiner and RF switch, realization is arrived in 5MHz
Filter with low insertion loss, high isolation are realized in the range of 6500MHz, improve system stability.
In one embodiment, wide band radio-frequency transmitting-receiving mould group include be connected to transceiver and combining and interface selection mould group it
Between receiving module, sending module.
Specifically, the input terminal connection combining of receiving module and the transmitting terminal of interface selection mould group, output end is for connecting
Transceiver；The input terminal of sending module is for connecting the receiving end of transceiver, output end connection combining and interface selection mould group.When
When system receives radiofrequency signal, the radiofrequency signal of transmission is sent to combining by the output end of sending module and interface selects mould
Group, and select mould group to be sent using external interface by combining and interface.
In a specific embodiment, as shown in figure 5, receiving module 510 is including the first attenuator 511 and for connecting
First wideband power amplifer 512 of transceiver；Sending module 520 is including the second attenuator 521 and for connecting transceiver
Second wideband power amplifer 522；
First attenuator 511 input terminal connection combining and interface selection mould group transmitting terminal, the first attenuator 511 it is defeated
Outlet connects the input terminal of the first wideband power amplifer 512；
The input terminal of second attenuator 521 connects the output end of the second wideband power amplifer 522, the second attenuator 521
Output end connection combining and interface selection mould group receiving end.
Specifically, it can realize that broadband power amplification, broadband flatness compensate by receiving module 510 and sending module 520
And temperature change compensation.For example, the default 5dB decaying in attenuator, transceiver and TX link gain are in BAND8 frequency range
5dB is 1dB in BAND41 frequency range, at this point, then can be on the basis of 3dB, when work is in BAND8, attenuator can increase 2dB and decline
Subtract, its gain is made to be down to 3dB from 5dB；When work is in BAND41, attenuator can reduce 2dB gain, increase its gain from 1dB
Add to 3dB.
It should be noted that receiving module 510 can be realized by multiple attenuators and multiple wideband power amplifers
Corresponding function；Sending module 520 can also realize corresponding function by multiple attenuators and multiple wideband power amplifers
Energy.
Wherein, attenuator can be digital pad or analog attenuator, specifically, can choose PE4312MLBA-Z
The digital pad of model can work in the broadband of 1MHZ to 4GHZ；Wideband power amplifer can choose SBB-4089's
Amplifier tube is, it can be achieved that the flat amplification of height within the scope of 50MHz to 6000MHz power wide-band.
In a specific embodiment, as shown in fig. 6, isolation mode group includes the first isolation module 610 and the second isolation
Module 620；
First isolation module 610 includes the first phase inverter 611 and the first metal-oxide-semiconductor 612；
Second isolation module 620 includes the second phase inverter 621 and the second metal-oxide-semiconductor 622；
The input terminal of first phase inverter 611 connects corresponding control signal input, and the output end of the first phase inverter 611 connects
The grid of the first metal-oxide-semiconductor 612 is connect, the source electrode of the first metal-oxide-semiconductor 612 connects charger 630, and the drain electrode of the first metal-oxide-semiconductor 612 connects
Receive module；
The input terminal of second phase inverter 621 is for connecting corresponding control signal input, the output of the second phase inverter 621
The grid of the second metal-oxide-semiconductor 622 of end connection, the source electrode of the second metal-oxide-semiconductor 622 send mould for connecting charger 630, drain electrode connection
Block.
Wherein, the first metal-oxide-semiconductor 612 and the second metal-oxide-semiconductor 622 all can be PMOS tube.
Specifically, when being in tdd mode, the synchronization signal of TDD system is detected, when controlling uplink conducting, on
Uplink control signal is high level, and downlink control signal is low level.The first isolation of uplink control signal input
Module 610, after phase inverter, phase inverter exports low level, since the output end of phase inverter connects the grid of the first metal-oxide-semiconductor 612
Pole, then the first metal-oxide-semiconductor 612 is connected, and charger 630 provides operating voltage by the first metal-oxide-semiconductor 612 for receiving module；Downlink chain
Road controls signal and inputs the second isolation module 620, and after phase inverter, phase inverter exports high level, due to the output of phase inverter
The grid of the second metal-oxide-semiconductor 622 of end connection, then the second metal-oxide-semiconductor 622 ends, and charger 630 cannot provide work electricity for transmitting module
Pressure.At this point, receiving path is connected, transmitting path is not turned on, i.e., uplink is connected.
When controlling downlink conducting, downlink control signal is high level, and uplink control signal is low electricity
It is flat.Downlink control signal inputs the second isolation module 620, and after phase inverter, phase inverter exports low level, due to reverse phase
The output end of device connects the grid of the second metal-oxide-semiconductor 622, then the second metal-oxide-semiconductor 622 is connected, and charger 630 passes through the second metal-oxide-semiconductor 622
Operating voltage is provided for transmitting module；Uplink control signal inputs the first isolation module 610, after phase inverter, reverse phase
Device exports high level, and since the output end of phase inverter connects the grid of the first metal-oxide-semiconductor 612, then the first metal-oxide-semiconductor 612 ends, power supply
Device 630 cannot provide operating voltage for receiving module.At this point, transmitting path is connected, receiving path is not turned on, i.e., downlink is led
It is logical.
In addition, the first isolation module 610 can also include phase inverter and the first metal-oxide-semiconductor 612；Second isolation module 620
It may include the second metal-oxide-semiconductor 622.Specifically, by detecting the synchronization signal of TDD system, when controlling uplink conducting, control
Signal processed is high level, and is input to the first isolation module 610 and the second isolation module 620.Control signal input first every
After module 610, low level is exported by phase inverter, since the output end of phase inverter connects the grid of the first metal-oxide-semiconductor 612, then
The conducting of first metal-oxide-semiconductor 612, charger 630 provide operating voltage by the first metal-oxide-semiconductor 612 for receiving module；Control signal input
After second isolation module 620, since control signal input connects the grid of the second metal-oxide-semiconductor 622, the second metal-oxide-semiconductor 622 is not
Conducting, charger 630 cannot provide operating voltage for transmitting module.At this point, receiving path is connected, transmitting path is not turned on, i.e.,
Uplink conducting.
When controlling downlink conducting, control signal is low level, and is input to the first isolation module 610 and second
Isolation module 620.After controlling signal the first isolation module 610 of input, high level is exported by phase inverter, in the output of phase inverter
The grid of the first metal-oxide-semiconductor 612 of end connection, then the first metal-oxide-semiconductor 612 is not turned on, and charger 630 cannot provide work for receiving module
Voltage；After controlling signal the second isolation module 620 of input, since control signal input connects the grid of the second metal-oxide-semiconductor 622,
Therefore the conducting of the second metal-oxide-semiconductor 622, charger 630 provide operating voltage for transmitting module.At this point, transmitting path is connected, receive logical
Road is not turned on, i.e., downlink is connected.
It should be noted that the quantity of isolation module is not only limited in two, can be received and dispatched in mould group according to wide band radio-frequency, hair
It send module and the quantity of receiving module to carry out additions and deletions, can be the sum of sending module and receiving module quantity.
In above-mentioned multi-standard radio frequency access system, the working condition of metal-oxide-semiconductor is controlled by control signal, to realize to hair
The working condition for penetrating module and receiving module is controlled, and prevents co-channel interference, and then can be by using different control plans
Slightly to improve the isolation under tdd mode.It should be noted that control strategy includes uplink conducting, downlink is not led
It is logical；And downlink conducting, uplink are not turned on.
In one embodiment, it as shown in fig. 7, providing a kind of multi-standard radio frequency access system, provides one kind and makes more
Formula radio frequency access system, including isolation mode group 710, for connecting the combining and interface selection mould group 720, Yi Jiyong of external interface
Mould group 740 is received and dispatched in the wide band radio-frequency of connection transceiver 730；Isolation mode group 710 connects wide band radio-frequency and receives and dispatches mould group 740；
The signal output end of the receiving end connection wide band radio-frequency transmitting-receiving mould group 740 of combining and interface selection mould group 720, sends
The signal input part of end connection wide band radio-frequency transmitting-receiving mould group 740.
Wherein, multi-standard radio frequency access system further includes communications module 750；Communications module 750 and wide band radio-frequency receive and dispatch mould
740 communication connection of group.
Specifically, system can be configured and is upgraded using terminal and corresponding software by communications module 750.
Such as local frequency is arranged by terminal, to upgrade to system, meets the needs of multi-standard radio frequency access, avoid hardware
Transformation and hardware replacement, save the cost.
Wherein, terminal is also referred to as terminal device, is the equipment for being in network outermost in computer network, is mainly used for information
Input and the output of processing result etc..Specifically, terminal can be, but not limited to be various personal computers, notebook electricity
Brain, smart phone, tablet computer and portable wearable device.
It in a specific embodiment, further include monitoring mould group；Monitoring mould group includes controller and connection controller
Sensor；Controller, sensor are separately connected wide band radio-frequency transmitting-receiving mould group.
In one embodiment, a kind of multi-standard radio frequency access device, the multi-standard including above-mentioned any one are provided
Radio frequency access system, and the terminal of connection multi-standard radio frequency access system.
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
Above embodiments only express the several embodiments of the application, and the description thereof is more specific and detailed, but can not
Therefore it is interpreted as the limitation to utility model patent range.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of multi-standard radio frequency access system, which is characterized in that including isolation mode group, for connect external interface combining and
Interface selects mould group, and the wide band radio-frequency for connecting transceiver receives and dispatches mould group；The isolation mode group connects the broadband and penetrates
Frequency transmitting-receiving mould group；
The receiving end of the combining and interface selection mould group connects the signal output end of the wide band radio-frequency transmitting-receiving mould group, transmitting terminal
Connect the signal input part of the wide band radio-frequency transmitting-receiving mould group.
2. multi-standard radio frequency access system according to claim 1, which is characterized in that the combining and interface select mould group
Receiving end include the first receiving end and the second receiving end；The transmitting terminal of the combining and interface selection mould group includes the first transmission
End and the second transmitting terminal；
First receiving end is for connecting the external interface；Second receiving end connects the signal output end；It is described
First transmitting terminal connects the signal input part；Second transmitting terminal is for connecting the external interface.
3. multi-standard radio frequency access system according to claim 1, which is characterized in that the combining and interface select mould group
Including being combined module, and the interface selecting module of the connection combining module；
The first end of the combining module connects the signal input part, and the second end of the combining module is described outer for connecting
Portion's interface；
The first end of the interface selecting module connects the signal output end, and the second end of the interface selecting module is for connecting
Connect the external interface.
4. multi-standard radio frequency access system according to claim 3, which is characterized in that the combining module includes combining
Device；The interface selecting module includes the first RF switch, the second RF switch, third RF switch, the first load and the
Two loads；
First pin of the combiner connects the signal input part, and the second pin connection described first of the combiner is penetrated
The first end of frequency switch, the third pin of the combiner is for connecting the external interface；
The second end connection described first of first RF switch loads, described in the third end connection of first RF switch
The second end of second RF switch；
The first end of second RF switch connects the signal output end, and the third end of second RF switch connects institute
State the second end of third RF switch；
The first end of the third RF switch connects the external interface, described in the third end connection of the third RF switch
Second load.
5. multi-standard radio frequency access system according to claim 1, which is characterized in that the wide band radio-frequency receives and dispatches mould group packet
Include the receiving module being connected between the transceiver and the combining and interface selection mould group, sending module.
6. multi-standard radio frequency access system according to claim 5, which is characterized in that the receiving module declines including first
Subtract device and the first wideband power amplifer for connecting the transceiver；The sending module includes the second attenuator and is used for
Connect the second wideband power amplifer of the transceiver；
The input terminal of first attenuator connects the transmitting terminal of the combining and interface selection mould group, first attenuator
Output end connects the input terminal of first wideband power amplifer；
The input terminal of second attenuator connects the output end of second wideband power amplifer, second attenuator
Output end connects the receiving end of the combining and interface selection mould group.
7. multi-standard radio frequency access system according to claim 5, which is characterized in that the isolation mode group include first every
From module and the second isolation module；
First isolation module includes the first phase inverter and the first metal-oxide-semiconductor；
Second isolation module includes the second phase inverter and the second metal-oxide-semiconductor；
The input terminal of first phase inverter connects corresponding control signal input, the output end connection of first phase inverter
The grid of first metal-oxide-semiconductor, the source electrode of first metal-oxide-semiconductor connect charger, described in the drain electrode connection of first metal-oxide-semiconductor
Receiving module；
The input terminal of second phase inverter is for connecting corresponding control signal input, the output end of second phase inverter
The grid of second metal-oxide-semiconductor is connected, the source electrode of second metal-oxide-semiconductor connects the transmission mould for connecting charger, drain electrode
Block.
8. multi-standard radio frequency access system according to claim 1, which is characterized in that further include communications module；
The communications module and wide band radio-frequency transmitting-receiving mould group communication connection.
9. according to claim 1 to multi-standard radio frequency access system described in 8 any one, which is characterized in that further include monitoring
Mould group；
The monitoring mould group includes the sensor of controller and connection controller；
The controller, the sensor are separately connected the wide band radio-frequency transmitting-receiving mould group.
10. a kind of multi-standard radio frequency access device, which is characterized in that including multi-standard described in claims 1 to 8 any one
Radio frequency access system, and the terminal of the connection multi-standard radio frequency access system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821716526.XU CN208820780U (en) | 2018-10-22 | 2018-10-22 | Multi-standard radio frequency access system and equipment |
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| CN201821716526.XU CN208820780U (en) | 2018-10-22 | 2018-10-22 | Multi-standard radio frequency access system and equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021098674A1 (en) * | 2019-11-22 | 2021-05-27 | 维沃移动通信有限公司 | Radio frequency structure, and communication terminal |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021098674A1 (en) * | 2019-11-22 | 2021-05-27 | 维沃移动通信有限公司 | Radio frequency structure, and communication terminal |
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Effective date of registration: 20200108 Address after: 510663 Shenzhou Road 10, Guangzhou Science City, Guangzhou economic and Technological Development Zone, Guangzhou, Guangdong Patentee after: Jingxin Communication System (China) Co., Ltd. Address before: 510663 Shenzhou Road 10, Guangzhou Science City, Guangzhou economic and Technological Development Zone, Guangzhou, Guangdong Co-patentee before: Jingxin Communication System (Guangzhou) Co., Ltd. Patentee before: Jingxin Communication System (China) Co., Ltd. Co-patentee before: Jingxin Communication Technology (Guangzhou) Co., Ltd. Co-patentee before: TIANJIN COMBA TELECOM SYSTEMS CO., LTD. |
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Address after: 510663 Shenzhou Road 10, Guangzhou Science City, Guangzhou economic and Technological Development Zone, Guangzhou, Guangdong Patentee after: Jingxin Network System Co.,Ltd. Address before: 510663 Shenzhou Road 10, Guangzhou Science City, Guangzhou economic and Technological Development Zone, Guangzhou, Guangdong Patentee before: Comba Telecom System (China) Ltd. |
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