CN110224704A - Radio frequency system and base station equipment - Google Patents
Radio frequency system and base station equipment Download PDFInfo
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- CN110224704A CN110224704A CN201810169906.4A CN201810169906A CN110224704A CN 110224704 A CN110224704 A CN 110224704A CN 201810169906 A CN201810169906 A CN 201810169906A CN 110224704 A CN110224704 A CN 110224704A
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- frequency range
- transceiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
- H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
- H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a kind of radio frequency system and base station equipment, and the radio frequency system includes: RF transceiver, at least two radio-frequency front-ends and at least two dual-mode antennas, and dual-mode antenna and radio-frequency front-end correspond；Each radio-frequency front-end is connected between corresponding dual-mode antenna and RF transceiver；Each radio-frequency front-end is used to for the signal of received at least two different frequency range of corresponding dual-mode antenna being transferred to RF transceiver, and the signal of the first frequency range of RF transceiver transmitting is transferred to corresponding dual-mode antenna.Radio frequency system and base station equipment provided by the invention, it can support asymmetrical up-link carrier polymerizable functional, meets the needs of uplink throughput is greater than downlink throughput capacity, and, it can be to avoid interference when supplement high-power transmitting of uplink band SUL to adjacent band, equipment cost can also be reduced simultaneously, reduce engineering complexity.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of radio frequency systems and base station equipment.
Background technique
In the demand of common public network, general downlink throughput capacity is greater than uplink throughput, therefore, in general LTE standard
In, it is defined for the polymerization of symmetrical carrier wave and the polymerization of asymmetrical descending carrier, it is desirable that descending carrier number is more than or equal to upper
Row carrier number, it is possible to meet the needs of common public network, also, device manufacturer is also proposed corresponding base station equipment.But
In the industry-specific cordless communication network in portion, such as: there are in the network of a large amount of video monitoring class business, has uplink and handle up
Amount is greater than the demand of downlink throughput capacity.Currently, carrier aggregation scheme defined in general LTE standard, which is unable to satisfy such, to be needed
It asks, therefore, it is necessary to be greater than the asymmetrical up-link carrier polymerization technique of descending carrier number using up-link carrier number.
But there is presently no corresponding base station equipments to support asymmetrical up-link carrier polymerization technique.
Summary of the invention
The present invention provides a kind of radio frequency system and base station equipment, to support asymmetrical up-link carrier polymerization technique.
In a first aspect, radio frequency system provided by the invention, comprising: RF transceiver, at least two radio-frequency front-ends and extremely
Few two dual-mode antennas, the dual-mode antenna and the radio-frequency front-end correspond；Each radio-frequency front-end is connected to correspondence
Dual-mode antenna and the RF transceiver between；
Each radio-frequency front-end is used to transmit the signal of received at least two different frequency range of corresponding dual-mode antenna
Corresponding transmitting-receiving is transferred to the RF transceiver, and by the signal for the first frequency range that the RF transceiver emits
Antenna.
Optionally, each radio-frequency front-end includes: multiplexer, a transmitting path and at least two receiving paths；
The output end of the transmitting path is connect by the multiplexer with the dual-mode antenna, input terminal and the radio frequency
Transceiver connection；The input terminal of each receiving path is connect by the multiplexer with the dual-mode antenna, output end
It is connect with the RF transceiver；
The transmitting path is used for transmission the signal of first frequency range, and at least two receiving path is used for transmission institute
State the signal of at least two different frequency ranges.
Optionally, the transmitting path includes power amplifier and isolator, the input terminal of the power amplifier and institute
State RF transceiver connection, output end connect with the input terminal of the isolator, the output end of the isolator with it is described more
The connection of work device.
Optionally, each receiving path includes low-noise amplifier, the input terminal of the low-noise amplifier and institute
Multiplexer connection is stated, output end is connect with the RF transceiver.
Optionally, the multiplexer is duplexer, and the quantity of the receiving path is one.
Optionally, the receiving path includes low-noise amplifier, power splitter and at least two filters；The low noise
The input terminal of amplifier is connect with the duplexer, and output end is connect with the input terminal of the power splitter, and the power splitter is extremely
Few two output ends are connect with the input terminal of at least two filter respectively, the output end point of at least two filter
It is not connect with the RF transceiver；At least two filter is respectively used to be filtered the reception signal to divide
From obtaining the signal of at least two different frequency range.
Optionally, in the signal of at least two different frequency range, one of frequency range and first frequency range are symmetrical
Frequency range, remaining frequency range are asymmetric frequency range.
Optionally, the radio frequency system further includes that at least two single receipts antennas and at least two single receipts antenna are corresponding
Radio-frequency front-end；
The radio-frequency front-end is used to transmit corresponding single signal for receiving received at least two different frequency range of antenna
To the RF transceiver.
Optionally, the quantity of the dual-mode antenna is two, and single quantity for receiving antenna is two.
Second aspect, base station equipment provided by the invention, including such as the described in any item radio frequency systems of first aspect.
Radio frequency system and base station equipment provided by the invention, the radio frequency system include RF transceiver, at least two
Radio-frequency front-end and at least two dual-mode antennas, the dual-mode antenna and the radio-frequency front-end correspond, before each radio frequency
End is connected between corresponding dual-mode antenna and the RF transceiver；Each radio-frequency front-end is used for corresponding transmitting-receiving
The signal of received at least two different frequency range of antenna is transferred to the RF transceiver, and by the RF transceiver
The signal of first frequency range of transmitting is transferred to corresponding dual-mode antenna.It follows that each radio-frequency front-end can support a frequency
The downlink signal of section and the uplink receiving signal of multiple and different frequency ranges, that is to say, that under up-link carrier number can be supported to be greater than
The case where row carrier number, therefore can realize asymmetrical up-link carrier polymerizable functional, so as to meet under uplink throughput is greater than
The demand of row handling capacity；Multiple uplink receiving frequency ranges that the radio frequency system is supported share a dual-mode antenna, can reduce
Equipment cost, while reducing engineering complexity；In addition, only one downlink in each radio-frequency front-end of the radio frequency system
Frequency range, that is to say, that only receive in asymmetric frequency range and do not emit, so as to avoid when the supplement high-power transmitting of uplink band SUL pairs
The interference of adjacent band；Compared with the radio frequency system of existing non-carrier polymerization, the radio frequency system of the present embodiment is only in radio frequency
The corresponding receiving path of asymmetric up-link carrier is increased in system, will not cost to radio frequency system and volume generate larger shadow
It rings.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the spectrum diagram of certain network；
Fig. 2 is that the up-link carrier in network shown in Fig. 1 polymerize schematic diagram；
Fig. 3 is the structural schematic diagram one of radio frequency system embodiment one provided by the invention；
Fig. 4 is the structural schematic diagram two of radio frequency system embodiment one provided by the invention；
Fig. 5 is the structural schematic diagram of radio frequency system embodiment two provided by the invention；
Fig. 6 is the structural schematic diagram of radio frequency system embodiment three provided by the invention；
Fig. 7 is the structural schematic diagram of radio frequency system example IV provided by the invention；
Fig. 8 is the structural schematic diagram of base station equipment embodiment provided by the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Description and claims of this specification and term " first ", " second ", " third " " in above-mentioned attached drawing
The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage
The data that solution uses in this way are interchangeable under appropriate circumstances, so that the embodiment of the present invention described herein for example can be to remove
Sequence other than those of illustrating or describe herein is implemented.In addition, term " includes " and " having " and theirs is any
Deformation, it is intended that cover it is non-exclusive include, for example, containing the process, method of a series of steps or units, system, production
Product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for this
A little process, methods, the other step or units of product or equipment inherently.
In the demand of common public network, general downlink throughput capacity is greater than uplink throughput, therefore, in general LTE standard
In, it is defined for the polymerization of symmetrical carrier wave and the polymerization of asymmetrical descending carrier, it is desirable that descending carrier number is more than or equal to
Up-link carrier number, it is possible to meet the needs of common public network, also, device manufacturer is also proposed corresponding base station equipment.But
Be in the industry-specific cordless communication network in portion, such as: there are in the network of a large amount of video monitoring class business, have uplink and gulp down
The amount of spitting is greater than the demand of downlink throughput capacity.Currently, carrier aggregation scheme defined in general LTE standard, which is unable to satisfy such, to be needed
It asks, therefore, it is necessary to be greater than the asymmetrical up-link carrier polymerization technique of descending carrier number using up-link carrier number.
But there is presently no corresponding base station equipments to support asymmetrical up-link carrier polymerization technique.The present invention provides
A kind of radio frequency system and base station equipment, for supporting asymmetrical up-link carrier polymerization technique.
Technical solution of the present invention is described in detail with specifically embodiment below.These specific implementations below
Example can be combined with each other, and the same or similar concept or process may be repeated no more in some embodiments.
The implementation of asymmetrical up-link carrier polymerization is introduced first.Assuming that up-link carrier number is M, descending carrier number is
N, and M > N.When realizing the polymerization of asymmetrical up-link carrier, M up-link carrier and N number of descending carrier can be decomposed into N number of
Carrier wave polymerize cluster, and each carrier wave polymerization cluster includes a descending carrier and K up-link carrier, and K is the integer more than or equal to 1.Its
In, in each carrier wave polymerization cluster, descending carrier and its a corresponding up-link carrier form FDD carrier wave, other up-link carriers
It is defined as supplement uplink (Supplemental UpLink, SUL) carrier wave.
Fig. 1 be certain network spectrum diagram, as shown in Figure 1, in the network include frequency range 1 (351MHz-358MHz) and
Frequency range 2 (361MHz-368MHz), and frequency range 1 and frequency range 2 are symmetrical frequency band, wherein and frequency range 1 is uplink band, and frequency range 2 is
Band downlink；In addition, further comprising frequency range 3 (336MHz-340MHz) in the network, which is asymmetrical uplink band.
Fig. 2 is that the up-link carrier in network shown in Fig. 1 polymerize schematic diagram, as shown in Fig. 2, the carrier wave composition of three frequency ranges in the network
One carrier wave polymerize cluster, wherein the carrier wave of frequency range 1 and frequency range 2 forms FDD carrier wave, and the carrier wave of frequency range 3 is SUL carrier wave.
It should be noted that radio frequency system provided by the invention and base station equipment can be used for all asymmetric up-link carriers
The scene of polymerization, however it is not limited to scene shown in FIG. 1, it is merely illustrative shown in Fig. 1.For convenience, subsequent embodiment is equal
It is illustrated by taking above-mentioned Fig. 1 and up-link carrier shown in Fig. 2 polymerization situation as an example.
Fig. 3 is the structural schematic diagram one of radio frequency system embodiment one provided by the invention, and Fig. 4 is radio frequency provided by the invention
The structural schematic diagram two of system embodiment one, as shown in Figure 3 and Figure 4, the radio frequency system of the present embodiment includes: RF signal receiving and s ending
Machine, at least two radio-frequency front-ends and at least two dual-mode antennas, the dual-mode antenna and the radio-frequency front-end correspond；Each
The radio-frequency front-end is connected between corresponding dual-mode antenna and the RF transceiver；
Each radio-frequency front-end is used to transmit the signal of received at least two different frequency range of corresponding dual-mode antenna
Corresponding transmitting-receiving is transferred to the RF transceiver, and by the signal for the first frequency range that the RF transceiver emits
Antenna.
Specifically, the radio frequency system can be used for base station equipment, illustrate signal by taking the scene for base station equipment as an example below
Send and receive process.Taking what is shown in fig. 3 as an example, for the downlink signal of base station, RF transceiver is by downlink
Signal is transferred to dual-mode antenna by radio-frequency front-end, is then launched the downlink signal by dual-mode antenna.For
After dual-mode antenna receives uplink signal, uplink signal is transferred to by the radio-frequency front-end for the uplink receiving signal of base station
The RF transceiver.
In addition, each radio-frequency front-end is used for the signal of received at least two different frequency range of corresponding dual-mode antenna
It is transferred to the RF transceiver, and the signal for the first frequency range that the RF transceiver emits is transferred to corresponding
Dual-mode antenna, that is to say, that the radio frequency system can be used for realizing the transmitting an of band downlink and the reception of multiple uplink bands,
So as to be suitable for the scene of asymmetrical up-link carrier polymerization.
Optionally, in the signal of at least two different frequency range, one of frequency range and first frequency range are symmetrical
Frequency range, remaining frequency range are asymmetric frequency range.Such as: the signal of at least two different frequency range includes the second frequency range and third frequency
The signal of section, first frequency range and second frequency range are symmetrical frequency band, and the third frequency range is asymmetric frequency range.
By taking Fig. 1 and asymmetrical up-link carrier polymerization situation shown in Fig. 2 as an example, radio frequency system shown in Fig. 3 is therein
Each radio-frequency front-end can be used for emitting the downlink signal of frequency range 2, and can be used for receiving the uplink receiving of frequency range 1 and frequency range 3
Signal, so that asymmetrical up-link carrier polymerization is realized, since the carrier number supported in the upstream direction is more than down direction
On carrier number, it can be achieved that uplink throughput be greater than downlink throughput capacity demand.For asymmetrical uplink band 3, this reality
The radio frequency system for applying example only carries out uplink receiving, and without transmitting, it can be to avoid the interference to adjacent band.For by symmetrical
Frequency range 1 and frequency range 2 the FDD carrier wave and the corresponding SUL carrier wave of asymmetrical frequency range 3 that form, share a dual-mode antenna, can be with
Equipment cost is reduced, while reducing engineering complexity.The radio frequency system of the present embodiment, with the existing non-carrier radio frequency system polymerizeing
System is compared, and the corresponding receiving path of SUL carrier wave is only increased in radio frequency system, will not cost and volume to radio frequency system
It produces bigger effect.
It should be noted that radio-frequency front-end in the present embodiment can there are many embodiments, the present embodiment not to make specifically
It limits, the optional embodiment of two of them can be found in the detailed description of embodiment two and embodiment three.
As described above, dual-mode antenna can be used for base station uplink receiving and base station down transmitting, that is, it is shown in Fig. 3 be using
Two dual-mode antennas realize the scene that two hairs two are received, and shown in Fig. 4 is the scene realizing four hairs four using four dual-mode antennas and receiving.
It should be noted that the present invention for dual-mode antenna quantity and be not especially limited, it is merely illustrative shown in Fig. 3 and Fig. 4.
In the radio frequency system of the present embodiment, each radio-frequency front-end can support the downlink signal an of frequency range and multiple
The uplink receiving signal of different frequency range, that is to say, that up-link carrier number can be supported to be greater than the situation of descending carrier number, therefore can be real
Existing asymmetrical up-link carrier polymerizable functional, so as to meet the needs of uplink throughput is greater than downlink throughput capacity；The radio frequency
Multiple uplink receiving frequency ranges that system is supported share a dual-mode antenna, can reduce equipment cost, while it is multiple to reduce engineering
Miscellaneous degree；In addition, only one downlink frequency range in each radio-frequency front-end of the radio frequency system, that is to say, that in asymmetric frequency
Section, which only receives, not to be emitted, so as to avoid interference when supplement high-power transmitting of uplink band SUL to adjacent band；With it is existing
The radio frequency system of non-carrier polymerization is compared, and the radio frequency system of the present embodiment only increases asymmetric uplink in radio frequency system and carries
The corresponding receiving path of wave, will not cost to radio frequency system and volume produce bigger effect.
Fig. 5 is the structural schematic diagram of radio frequency system embodiment two provided by the invention, the radio frequency system of the present embodiment, upper
On the basis of stating embodiment, the optional embodiment of one of which of radio-frequency front-end is given.
In the radio frequency system of the present embodiment, each radio-frequency front-end includes: multiplexer, a transmitting path and at least two
A receiving path.
The output end of the transmitting path is connect by the multiplexer with the dual-mode antenna, input terminal and the radio frequency
Transceiver connection；The input terminal of each receiving path is connect by the multiplexer with the dual-mode antenna, output end
It is connect with the RF transceiver；
The transmitting path is used for transmission the signal of first frequency range, and at least two receiving path is used for transmission institute
State the signal of at least two different frequency ranges.
Specifically, each radio-frequency front-end includes a downlink access and multiple uplink receiving accesses, so that this implementation
The radio frequency system of example can support asymmetrical up-link carrier polymerizable functional, that is to say, that up-link carrier number is supported to carry more than downlink
The polymerization situation of wave number, so as to meet the needs of uplink throughput is greater than downlink throughput capacity.
It should be understood that for the quantity of uplink receiving access and be not especially limited in the present embodiment, it can be according to reality
The spectrum distribution situation of internet is configured.In radio frequency system shown in fig. 5, it is with Fig. 1 and network spectrum shown in Fig. 2
Example, illustrates each radio-frequency front-end and includes the case where a downlink access and two uplink receiving accesses.Wherein, downlink is sent out
It penetrates access and is respectively used to receive the signal of frequency range 2 and frequency range 3 for emitting the signal of frequency range 2, two uplink receiving accesses.
As shown in figure 5, the multiplexer is triplexer, realized by three bandpass filters, a downlink access
Pass through the triplexer with two uplink receiving accesses to connect with dual-mode antenna, the radio frequency system is allowed to emit frequency range simultaneously
2 downlink signal and the uplink signal for receiving frequency range 1 and frequency range 3, and interfere with each other the signal between each frequency range not.
Optionally, the transmitting path includes power amplifier and isolator, the input terminal of the power amplifier and institute
State RF transceiver connection, output end connect with the input terminal of the isolator, the output end of the isolator with it is described more
The connection of work device.
Each receiving path includes low-noise amplifier, the input terminal of the low-noise amplifier and the multiplexer
Connection, output end are connect with the RF transceiver.
Specifically, as shown in figure 5, the downlink for the frequency range 2 that RF transceiver issues is believed in each radio-frequency front-end
Number, then the radiofrequency signal amplified after power amplifier is sent to dual-mode antenna by isolator, by dual-mode antenna
It is emitted in wireless channel.The uplink signal of the frequency range 1 and frequency ranges 3 that received by dual-mode antenna, after the filtering of multiplexer,
It respectively enters in the corresponding receiving path of respective frequency range, and the uplink signal amplified after low-noise amplifier, two
The uplink signal of receiving path is sent respectively to RF transceiver, is carried out the processing such as demodulating by RF transceiver.
Embodiment shown in fig. 5 can be used for supporting in any network of asymmetric up-link carrier polymerization, for some network
In frequency range distribution, if multiple uplink receiving frequency ranges be adjacent band, can also be by the way of subsequent embodiment three.
Fig. 6 is the structural schematic diagram of radio frequency system embodiment three provided by the invention, the radio frequency system of the present embodiment, upper
On the basis of stating embodiment, the optional embodiment of another kind of radio-frequency front-end is given.
As shown in fig. 6, in the radio frequency system of the present embodiment, each radio-frequency front-end includes: that duplexer, a transmitting are logical
Road and a receiving path.The output end of the transmitting path is connect by the duplexer with the dual-mode antenna, input terminal
It is connect with the RF transceiver；The input terminal of the receiving path is connect by the duplexer with the dual-mode antenna,
Output end is connect with the RF transceiver；The transmitting path is used for transmission the signal of first frequency range, the reception
Access is used for transmission the signal of at least two different frequency range.
Specifically, each radio-frequency front-end includes a transmitting path and a receiving path, transmitting path will be for that will emit
The transmitting signal of RF transceiver is transferred to dual-mode antenna, and receiving path is penetrated for the reception signal of dual-mode antenna to be transferred to
Frequency transceiver.Wherein, the transmitting signal is the downlink signal of the first frequency range, and the reception signal includes at least two different
The uplink signal of frequency range, so that the radio frequency system of the present embodiment can support asymmetrical up-link carrier polymerizable functional, that is to say, that
Up-link carrier number is supported to be more than the polymerization situation of descending carrier number, so as to meet uplink throughput greater than downlink throughput capacity
Demand.
It should be understood that not doing specific limit for the number of frequency bands of the reception signal in receiving path in the present embodiment
It is fixed, it can be configured according to the spectrum distribution situation of real network.In radio frequency system shown in fig. 6, shown in Fig. 1 and Fig. 2
Network spectrum for, illustrate each radio-frequency front-end and include the case where a transmitting path and a receiving path, wherein hair
It penetrates access and is used to receive the uplink signal of frequency range 1 and frequency range 3 for emitting the downlink signal of frequency range 2, receiving path.Specifically,
As shown in fig. 6, the duplexer uses the duplexer of 20MHz/5MHz, realized by two bandpass filters, the transmitting path
Pass through the duplexer with receiving path to connect with dual-mode antenna, the radio frequency system is allowed to emit the downlink of frequency range 2 simultaneously
Signal and the uplink signal for receiving frequency range 1 and frequency range 3, and interfere with each other the signal between each frequency range not.
Optionally, the transmitting path includes power amplifier and isolator；The input terminal of the power amplifier and institute
State RF transceiver connection, output end connect with the input terminal of the isolator, the output end of the isolator with described pair
The connection of work device.
The receiving path includes low-noise amplifier, power splitter and at least two filters；The low-noise amplifier
Input terminal connect with the duplexer, output end is connect with the input terminal of the power splitter, at least two of the power splitter
Output end is connect with the input terminal of at least two filter respectively, the output end of at least two filter respectively with institute
State RF transceiver connection；At least two filter is respectively used to be filtered with isolated the reception signal
The signal of at least two different frequency range.
Specifically, as shown in fig. 6, the downlink for the frequency range 2 that RF transceiver issues is believed in each radio-frequency front-end
Number, it first passes around power amplifier and obtains amplified radiofrequency signal, then dual-mode antenna is sent to by isolator, by receiving and dispatching
Antenna is emitted in wireless channel.The uplink signal received by dual-mode antenna obtains frequency range 1 after the filtering of duplexer
With the uplink signal of frequency range 3, into receiving path, the uplink signal amplified by low-noise amplifier, then on this
Row signal enters in power splitter, so that the uplink signal is divided into two-way, wherein obtaining frequency range 1 after filter filtering all the way
Uplink signal, the uplink signal of frequency range 3 is in addition obtained after filter filtering all the way, two-way uplink signal is respectively sent to
RF transceiver is carried out the processing such as demodulating by RF transceiver.
In the present embodiment, compared with embodiment two shown in fig. 5, the multiplexer in embodiment two is replaced using duplexer,
So as to further decrease the volume and cost of radio frequency system；Two uplink receiving accesses are merged into all the way, share one
Low-noise amplifier can also reduce the complexity of radio frequency system realization.
Fig. 7 is the structural schematic diagram of radio frequency system example IV provided by the invention, as shown in fig. 7, the present embodiment is penetrated
Display system, on the basis of the above embodiments, further includes: at least two single receipts antennas and at least two single antenna of receiving correspond to
Radio-frequency front-end.
The radio-frequency front-end is used to transmit corresponding single signal for receiving received at least two different frequency range of antenna
To the RF transceiver.
It should be understood that collect antenna based on dual-mode antenna, and it can simultaneously for transmitting and receiving, single antenna of receiving is diversity day
Line is served only for receiving, and is not used in transmitting, also, single frequency range phase for receiving signal with the reception signal of dual-mode antenna for receiving antenna
Together, so that single antenna of receiving can be used for realizing the diversity reception of data.
Optionally, the quantity of the dual-mode antenna is two, and single quantity for receiving antenna is two.Specifically, in conjunction with
Fig. 7, radio frequency system shown in Fig. 7 include two dual-mode antennas and two single receipts antennas, and two dual-mode antennas and two lists receive days
Line realizes the scene that two hairs four are received, and collects antenna based on dual-mode antenna, while being responsible for the transmitting and frequency range of the downlink signal of frequency range 2
1 and frequency range 3 uplink signal reception；Single antenna of receiving is diversity antenna, is served only for connecing for the uplink signal of frequency range 1 and frequency range 3
It receives, is not used in transmitting.The reception signal received from four antennas is merged processing by RF transceiver, to obtain diversity
Gain, the influence of the fast-fading in offseting signal transmission process improve the reliability of wireless channel transmission.
It should be noted that can refer to two He of embodiment for single specific embodiment for receiving the corresponding radio-frequency front-end of antenna
The embodiment of receiving path in embodiment three.Details are not described herein again.
Fig. 8 is the structural schematic diagram of base station equipment embodiment provided by the invention, as shown in figure 8, base provided by the invention
Station equipment includes the radio frequency system of any of the above-described embodiment, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of radio frequency system characterized by comprising RF transceiver, at least two radio-frequency front-ends and at least two receive
Antenna is sent out, the dual-mode antenna and the radio-frequency front-end correspond；Each radio-frequency front-end is connected to corresponding transmitting-receiving day
Between line and the RF transceiver；
Each radio-frequency front-end is used to the signal of received at least two different frequency range of corresponding dual-mode antenna being transferred to institute
RF transceiver is stated, and the signal for the first frequency range that the RF transceiver emits is transferred to corresponding transmitting-receiving day
Line.
2. radio frequency system according to claim 1, which is characterized in that each radio-frequency front-end includes: multiplexer, one
Transmitting path and at least two receiving paths；
The output end of the transmitting path is connect by the multiplexer with the dual-mode antenna, input terminal and the radio-frequency receiving-transmitting
The connection of letter machine；The input terminal of each receiving path is connect by the multiplexer with the dual-mode antenna, output end and institute
State RF transceiver connection；
The transmitting path is used for transmission the signal of first frequency range, at least two receiving path be used for transmission it is described extremely
The signal of few two different frequency ranges.
3. radio frequency system according to claim 2, which is characterized in that
The transmitting path includes power amplifier and isolator, the input terminal of the power amplifier and the RF signal receiving and s ending
Machine connection, output end are connect with the input terminal of the isolator, and the output end of the isolator is connect with the multiplexer.
4. radio frequency system according to claim 3, which is characterized in that
Each receiving path includes low-noise amplifier, and the input terminal of the low-noise amplifier and the multiplexer connect
It connects, output end is connect with the RF transceiver.
5. radio frequency system according to claim 3, which is characterized in that the multiplexer is duplexer, the receiving path
Quantity be one.
6. radio frequency system according to claim 5, which is characterized in that
The receiving path includes low-noise amplifier, power splitter and at least two filters；The low-noise amplifier it is defeated
Enter end to connect with the duplexer, output end is connect with the input terminal of the power splitter, at least two outputs of the power splitter
End is connect with the input terminal of at least two filter respectively, and the output end of at least two filter is penetrated with described respectively
The connection of frequency transceiver；At least two filter is respectively used to be filtered with isolated described the reception signal
The signal of at least two different frequency ranges.
7. radio frequency system according to claim 6, which is characterized in that in the signal of at least two different frequency range,
In frequency range and first frequency range be symmetrical frequency band, remaining frequency range is asymmetric frequency range.
8. radio frequency system according to claim 1-7, which is characterized in that further include at least two it is single receive antennas and
At least two list receives the corresponding radio-frequency front-end of antenna；
The radio-frequency front-end is used to corresponding single signal for receiving received at least two different frequency range of antenna being transferred to institute
State RF transceiver.
9. radio frequency system according to claim 8, which is characterized in that the quantity of the dual-mode antenna is two, the list
The quantity for receiving antenna is two.
10. a kind of base station equipment, which is characterized in that including such as described in any item radio frequency systems of claim 1-9.
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| CN201810169906.4A CN110224704B (en) | 2018-03-01 | 2018-03-01 | Radio frequency system and base station equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810169906.4A CN110224704B (en) | 2018-03-01 | 2018-03-01 | Radio frequency system and base station equipment |
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| CN110224704A true CN110224704A (en) | 2019-09-10 |
| CN110224704B CN110224704B (en) | 2021-10-15 |
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| CN113178682A (en) * | 2021-05-06 | 2021-07-27 | 深圳市中天迅通信技术股份有限公司 | Base station antenna and base station radio frequency equipment for 5G network |
| WO2022111566A1 (en) * | 2020-11-26 | 2022-06-02 | 华为技术有限公司 | Radio-frequency unit, antenna, and signal processing method |
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| CN105450371A (en) * | 2014-07-31 | 2016-03-30 | 成都鼎桥通信技术有限公司 | Asymmetric uplink carrier aggregation method and device |
| CN105846849A (en) * | 2016-03-31 | 2016-08-10 | 宇龙计算机通信科技(深圳)有限公司 | Carrier aggregation circuit realization method and realization system, and mobile terminal |
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| CN101026386A (en) * | 2006-02-22 | 2007-08-29 | 中兴通讯股份有限公司 | Base station, mobile terminal and method for comprehensive using paired and nonpaired spectrum |
| CN105450371A (en) * | 2014-07-31 | 2016-03-30 | 成都鼎桥通信技术有限公司 | Asymmetric uplink carrier aggregation method and device |
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| CN110224704B (en) | 2021-10-15 |
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