CN105811105B - Active Arrays, base station and Transmission system - Google Patents
Active Arrays, base station and Transmission system Download PDFInfo
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- CN105811105B CN105811105B CN201410832219.8A CN201410832219A CN105811105B CN 105811105 B CN105811105 B CN 105811105B CN 201410832219 A CN201410832219 A CN 201410832219A CN 105811105 B CN105811105 B CN 105811105B
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Abstract
The embodiment of the invention discloses a kind of Active Arrays, base station and Transmission systems, wherein Active Arrays include two sub-array antennas, two groups of feeding networks, a set of Remote Radio Unit and a rotary shaft；Remote Radio Unit is divided into two parts up and down, by rotating axis connection；Each sub-array antenna includes N number of antenna oscillator；Every group of feeding network includes N number of transmission unit；Each antenna oscillator in sub-array antenna is connect one by one with each transmission unit in feeding network, and every group of sub-array antenna and feeding network form one group of passive antenna subarray；Two groups of passive antenna subarrays are connect with two parts up and down of Remote Radio Unit respectively；The output end of each transmission unit is connect with the output end of Remote Radio Unit respectively in every group of feeding network, and the input terminal of each transmission unit is connect with Remote Radio Unit input terminal respectively in every group of feeding network.The embodiment of the present invention can carry out angle rotation in vertical direction by the rotary shaft of Remote Radio Unit, so that upper and lower two parts antenna is covered different vertical region, promote large scale array antennas orthogonal direction beam splitting effect, promote cell throughout.
Description
Technical field
The present invention relates to the communication technology, especially a kind of Active Arrays, base station and Transmission system.
Background technique
Multimedia industry with the rapid development of wireless communication technique, based on image, video and internet browsing etc.
Business becomes the main business demand of current mobile user, increases severely data traffic demand and day.Therefore, how for user speed is provided
The main target of Generation Mobile Communication System evolution when the connection of degree faster, more becomes future 5G.Develop angle from antenna,
Active antenna system is of great significance, and can obtain higher system using array antenna vertical direction beam splitting
System handling capacity.In the technical discussion to the following 5G network, based on active antenna, the higher distinguishable element number of antenna it is big
Scale array antenna obtains extensive concern to provide the higher spatial degrees of freedom of antenna.Extensive antenna can be realized more
The independent communication of transmitting terminal and multiple receiving ends on identical running time-frequency resource, and then it is obviously improved the frequency spectrum benefit of high communication system
With rate.
However, traditional planar array has many practical problems to will affect the big of future in terms of actual antennas test result
Scale allocating antenna, specifically includes that
Extensive antenna oscillator number is more, such as 64,128 or even 256 antenna oscillators are integrated into a secondary physical antenna
On, antenna size is larger, more demanding to terrace, and when future deployment is more eye-catching；
The vertical direction cell splitting that beginning major technique advantage is designed especially as active antenna, due to traditional face battle array
Antenna is limited (generally less than 15 degree) by angle of declination, and beam splitting in vertical direction is ineffective, so that upper and lower wave beam
Interference is obvious, can not effective lifting system entire throughput；
In addition, because high building construction process is very fast, many places are covered with certain difficulty to high building in existing network deployment
Degree solves typically only by the method for in-door covering, network is caused to dispose higher cost.
Summary of the invention
One technical problem to be solved by the embodiment of the invention is that: for the wave of traditional planar array in vertical direction
The problem that beam splitting is ineffective, throughput of system is lower provides a kind of Active Arrays, base station and Transmission system, to mention
Extensive antennas orthogonal direction beam splitting effect is risen, cell throughout is promoted.
A kind of Active Arrays provided in an embodiment of the present invention, including two sub-array antennas, two groups of feeding networks, one
Cover Remote Radio Unit and a rotary shaft；
The Remote Radio Unit is divided into two parts up and down, and two parts up and down of the Remote Radio Unit pass through institute
Rotation axis connection is stated, the angle rotatable range of rotary shaft is 0~180 degree；
Each sub-array antenna includes N number of antenna oscillator；Every group of feeding network includes N number of transmission unit；Wherein, N takes
Value is the integer greater than 0；Each antenna oscillator in sub-array antenna is connect one by one with each transmission unit in feeding network, and every group
The sub-array antenna and feeding network being correspondingly connected with form one group of passive antenna subarray；
Two groups of passive antenna subarrays are respectively used to carry out antenna beam generation and optimization, two groups of passive antenna submatrixs
Column are connect with two parts up and down of Remote Radio Unit respectively；In every group of feeding network the output end of each transmission unit respectively with
The output end of Remote Radio Unit connects, and the input terminal of each transmission unit is defeated with Remote Radio Unit respectively in every group of feeding network
Enter end connection.
In another embodiment based on the above-mentioned antenna of the present invention, the angle rotatable range of the rotary shaft is specially 90~
120 degree.
In another embodiment based on the above-mentioned antenna of the present invention, each antenna oscillator and transmission network in the sub-array antenna
Each transmission unit in network connects one by one especially by blindmate mode.
In another embodiment based on the above-mentioned antenna of the present invention, two groups of passive antenna subarrays are especially by blindmate side
Formula is connect with two parts up and down of Remote Radio Unit respectively.
In another embodiment based on the above-mentioned antenna of the present invention, each transmission unit include switching network, phase shifter and
Input cable is exported for amplifying to the input signal received from antenna oscillator, after phase shift to Remote Radio Unit, and
The input signal that Remote Radio Unit is sent is amplified, is exported after phase shift to the antenna oscillator of connection.
In another embodiment based on the above-mentioned antenna of the present invention, the Remote Radio Unit includes power supply, connects to power supply
Signal processing unit and the antenna connecting unit that is connect respectively with signal processing unit, passive antenna subarray, wherein signal
Processing unit is used to after institute's receiving antenna signal is carried out frequency conversion, enhanced processing forward, and is provided on the Remote Radio Unit
Baseband interface, the signal for sending signal processing unit are transmitted to baseband processor, and baseband processor is sent
Signal is transmitted to signal processing unit；Antenna connecting unit respectively by signal processing unit send signal be transmitted to two groups it is passive
Sub-array antenna, and the signal that two groups of passive antenna subarrays are sent is transmitted to signal processing unit.
A kind of base station provided in an embodiment of the present invention, it is active including baseband processor and any of the above-described embodiment of the present invention
Array antenna.
In another embodiment based on the above-mentioned base station of the present invention, the baseband processor includes that how defeated multi-user-multi input is
MU-MIMO precoding module and radio frequency connection unit out；
The MU-MIMO precoding module is according to the angle of coverage θ of part on preconfigured Active Arrays1With under
Partial angle of coverage θ2, pre-coding matrix P=[P1 (θ is obtained by the precoding algorithms of MU-MIMO1)P2(θ2)], and utilize
Pre-coding matrix P is transmitted to the Active Arrays by radio frequency connection unit to after signal to be transmitted progress precoding processing
In Remote Radio Unit.
In another embodiment based on the above-mentioned base station of the present invention, it is sent to the covering of the upward part of the Active Arrays
The signal to be transmitted of the first user in region is X1, is sent in the overlay area of the downward part of the Active Arrays
The signal to be transmitted of second user is X2；
The MU-MIMO precoding module carries out precoding processing to signal X1 to be transmitted and X2 using pre-coding matrix P
When, especially byPrecoding processing is carried out, signal to be transmitted X is obtained；
Two groups of passive antenna subarrays in the Active Arrays emit on same running time-frequency resource to be launched respectively
Signal X, in receiving end, linear receiver inspection is respectively adopted in the user terminal of first user and the user terminal of second user
Measure the echo signal of itselfWith
It further include cell splitting processing unit, for needing in another embodiment based on the above-mentioned base station of the present invention
It states in Active Arrays and different community mark is configured by the two paths of signals that two groups of passive antenna subarrays are sent respectively.
A kind of Transmission system provided in an embodiment of the present invention, including amplification forwarding equipment and any of the above-described embodiment of the present invention
Base station；
The base station deployment is on the first position height H1, the upper parts of the Active Arrays in base station covering the
The region of two height H2, the region of lower part covering third height H3, the region of the third height H3 includes ground region；Its
In, H1 > 0,0≤H3≤H1≤H2；
The amplification forwarding deployed with devices is in the region of the second height H2, for that will pass through the Active Arrays
The signal that upper subwave beam is sent is launched after carrying out power amplification.
In another embodiment based on above system of the present invention, the amplification forwarding equipment includes that receiving unit, radio frequency are put
Big unit and transmitting unit；
The receiving unit, the signal that the upper subwave beam for receiving the Active Arrays is sent；
The radio frequency amplifying unit, the signal for receiving to the receiving unit carry out power amplification；
The transmitting unit, for emitting the signal after the radio frequency amplifying unit carries out power amplification.
Based on Active Arrays, base station and Transmission system that the above embodiment of the present invention provides, Active Arrays exist
Folding rotary in vertical direction can be deployed on the metope of building angle, be easy to dispose, and save existing terrace resource；In addition, by
It is different from the angle of declination of lower part in upper part, it can effectively realize the beam splitting in vertical direction, effectively be promoted extensive
Antennas orthogonal direction beam splitting effect, it is possible thereby to pass through vertical cell splitting or design multi-user-multiple-input and multiple-output
(MU-MIMO) algorithm realizes the promotion of throughput of system；Meanwhile when Active Arrays are deployed in lowrise building angle, Ke Yishi
Now upper some antennas covering high building, lower some antennas cover ground simultaneously, solve the accurate covering problem of high building, are effectively reduced
Network lower deployment cost.
The novel extensive antenna configurations that the embodiment of the present invention proposes can be adapted for the following 5G and later multiple antennas solution
Certainly scheme meets future wireless network deployment request.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
The attached drawing for constituting part of specification describes the embodiment of the present invention, and together with description for explaining
The principle of the present invention.
The present invention can be more clearly understood according to following detailed description referring to attached drawing, in which:
Fig. 1 is the structural schematic diagram of Active Arrays one embodiment of the present invention.
Fig. 2 is the side structure schematic view of embodiment illustrated in fig. 1 Active Arrays.
Fig. 3 is another structural schematic diagram of Active Arrays embodiment of the present invention.
Fig. 4 is an overlay area schematic diagram of Active Arrays in the embodiment of the present invention.
Fig. 5 is the structural schematic diagram of another embodiment of Active Arrays of the present invention.
Fig. 6 is the structural schematic diagram of base station one embodiment of the present invention.
Fig. 7 is the structural schematic diagram of another embodiment of base station of the present invention.
Fig. 8 is the structural schematic diagram of Transmission system one embodiment of the present invention.
Fig. 9 is a deployment example figure of Transmission system of the present invention.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Simultaneously, it should be appreciated that for ease of description, the size of various pieces shown in attached drawing is not according to reality
Proportionate relationship draw.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Fig. 1 is the structural schematic diagram of Active Arrays one embodiment of the present invention.Fig. 2 is that embodiment illustrated in fig. 1 is active
The side structure schematic view of array antenna.Fig. 3 is another structural schematic diagram of Active Arrays embodiment of the present invention.
Referring to FIG. 1 to FIG. 3, the Active Arrays of the embodiment of the present invention include two sub-array antennas, 101, two groups of feeds
Network 102, a set of Remote Radio Unit (RRU) 103 and a rotary shaft 104.Wherein, it is upper and lower two parts that RRU103, which is divided to,
Two parts up and down of RRU103 are connected by rotary shaft 104, and the angle rotatable range of rotary shaft 104 is 0~180 degree,
In a specific embodiment of the invention, the default angle of rotary shaft 104 is 90 degree, can in 0~30 degree of progress angle adjustment,
That is: the angle rotatable range of rotary shaft 104 specifically can be 90~120 degree, specific angle can according to practical covering demand by
Unified Baseband algorithms obtain.
The structure of two sub-array antennas 101 is identical, and each sub-array antenna 101 includes N number of antenna oscillator 201；Two groups
The structure of feeding network 102 is identical, and every group of feeding network 102 includes N number of transmission unit 202, in number and sub-array antenna 101
The number of antenna oscillator 201 is identical.Wherein, the value of N is the integer greater than 0.In practical applications, the value of N is according to antenna
The requirement of element number is specifically set, and the embodiment of the present invention considers the Active Arrays for being suitable for more oscillators, so N value number is logical
Often greater than 4, in embodiment illustrated in fig. 3 illustratively by taking dual polarized antenna as an example, each sub-array antenna 101 specifically includes 4
Dual-polarized antenna vibrator, this example do not constitute the limitation to the embodiment of the present invention.Antenna oscillator 201 will be for that will receive signal biography
It transports in feeding network 102, is also used for launching outward the output signal of feeding network 102.Each day in sub-array antenna 101
Linear oscillator 201 is connect one by one with each transmission unit 202 in feeding network 102, every group of sub-array antenna 101 being correspondingly connected with
Feeding network 102 forms one group of passive antenna subarray.
Two groups of passive antenna subarrays are respectively used to carry out antenna beam generation and optimization, two groups of passive antenna subarrays point
It is not connect with two parts up and down of RRU103；In every group of feeding network 102 output end of each transmission unit 202 respectively with
The output end of RRU103 connects, and the input terminal of each transmission unit 202 connects with RRU103 input terminal respectively in every group of feeding network 102
It connects.
The Active Arrays that the above embodiment of the present invention provides, folding rotary, can be deployed in vertical direction
On the metope of building angle, it is easy to dispose, saves existing terrace resource, the extensive active array day more suitable for antenna oscillator number
Line；In addition, can effectively realize the beam splitting in vertical direction, effectively since upper part is different from the angle of declination of lower part
Extensive antennas orthogonal direction beam splitting effect is promoted, it is possible thereby to by vertical cell splitting or design MU-MIMO algorithm,
Realize the promotion of throughput of system；Meanwhile when Active Arrays are deployed in lowrise building angle, some antennas may be implemented and cover
Lid high building, lower some antennas cover ground simultaneously, solve the accurate covering problem of high building, effectively reduce network and be deployed to
This.
As shown in figure 4, for an overlay area schematic diagram of Active Arrays in the embodiment of the present invention.This can be sent out
The Active Arrays of bright each embodiment are deployed in the building Jiao Chu compared with lowrise, and (angle of coverage is expressed as the overlay area of upper part
θ1) it include surrounding high building, (angle of coverage is expressed as θ for the overlay area of lower part2) it include ground, certain water can be covered simultaneously
The vertical direction of flat physical region can realize cell splitting and MU-MIMO transmission by unified Baseband algorithms.
Each antenna in a specific example of each embodiment of Active Arrays of the present invention, in sub-array antenna 101
Oscillator 201 can specifically be connect one by one with each transmission unit 202 in feeding network 102 by blindmate mode, it may be assumed that antenna submatrix
There is no privately owned interface between column 101 and feeding network 102, as long as antenna oscillator 201 is matched with the size of transmission unit 202, day
Line subarray 101 can be directly connected to feeding network 102, and the two is not necessarily to be same producer's product.
In another specific example of each embodiment of Active Arrays of the present invention, two groups of passive antenna subarrays are specific
It can also be connect respectively with two parts up and down of RRU103 by blindmate mode.That is: passive antenna subarray and RRU103 it
Between without privately owned interface, as long as the size of the two matches, can be directly connected to, the two be not necessarily to be same producer's product.
Sub-array antenna, feeding network and RRU in the above embodiment of the present invention is mutually indepedent, is connected using blindmate mode
It connects, it, can't be to Active Arrays as long as connection size is constant even if the internal structure of feeding network or RRU change
It has an impact, can be realized the maintenance of investigation respectively of Active Arrays each section, effectively reduce opening for Active Arrays
Hair and O&M cost.
In addition, each transmission unit 202 has in another specific example of each embodiment of Active Arrays of the present invention
Body may include switching network, phase shifter and input cable, for putting to the input signal received from antenna oscillator 201
Greatly, it exports after phase shift to RRU103, and the RRU103 input signal sent is amplified, is exported after phase shift to the day of connection
Linear oscillator 201.
Fig. 5 is the structural schematic diagram of another embodiment of Active Arrays of the present invention.As shown in figure 5, in the embodiment,
RRU103 specifically include power supply 203, the signal processing unit being connect with power supply 203 204 and respectively with signal processing unit 204,
The antenna connecting unit 205 of passive antenna subarray connection, wherein signal processing unit 204 will receive signal and carry out frequency conversion, put
It is sent after big processing, antenna connecting unit 205 is specifically connect with the feeding network 102 in passive antenna subarray.
Baseband interface 206 is provided on RRU103, the signal for sending signal processing unit 204 is transmitted to baseband processor, with
And the signal that baseband processor is sent is transmitted to signal processing unit 204.Antenna connecting unit 205 is respectively by signal processing list
The signal that member 204 is sent is transmitted to two groups of passive antenna subarrays and (is specifically transmitted to the feeding network in passive antenna subarray
102), so as to two groups of passive antenna subarrays respectively according to distribu-tion index carry out antenna beam optimization, and by two groups without
The signal that source antenna subarray (feeding network 102 specially in passive antenna subarray) is sent is transmitted to signal processing unit
204。
Fig. 6 is the structural schematic diagram of base station one embodiment of the present invention.As shown in fig. 6, the base station of the embodiment of the present invention is wrapped
Include baseband processor 301 and Active Arrays 302.Wherein, Active Arrays 302 can above-mentioned Fig. 1 be extremely through the invention
The Active Arrays structure of Fig. 5 any embodiment is realized, it will be understood by those skilled in the art that Fig. 6 is exemplarily only shown
One of topology example, the topology example are not construed as limiting the realization of Active Arrays of the present embodiment 302.
The base station that the above embodiment of the present invention provides includes the Active Arrays of above-described embodiment, due to active array day
Line is foldable in vertical direction, can be deployed on the metope of building angle, be easy to dispose, and saves existing terrace resource；In addition, by
It is different from the angle of declination of lower part in upper part, it can effectively realize the beam splitting in vertical direction, effectively be promoted extensive
Antennas orthogonal direction beam splitting effect, it is possible thereby to be gulped down by vertical cell splitting or design MU-MIMO algorithm, realization system
The promotion for the amount of spitting；Meanwhile when Active Arrays are deployed in lowrise building angle, may be implemented some antennas covering high building, under
Some antennas covers ground simultaneously, solves the accurate covering problem of high building, effectively reduces network lower deployment cost.
Fig. 7 is the structural schematic diagram of another embodiment of base station of the present invention.As shown in fig. 7, in the embodiment, Base-Band Processing
Device 301 includes MU-MIMO precoding module 401 and radio frequency connection unit 402.Wherein.401 basis of MU-MIMO precoding module
The angle of coverage θ of part on preconfigured Active Arrays 3021With the angle of coverage θ of lower part2, pass through MU-MIMO's
Precoding algorithms obtain pre-coding matrix P=[P1 (θ1)P2(θ2)], and signal to be transmitted is carried out using pre-coding matrix P
The RRU103 in Active Arrays 302 is transmitted to by radio frequency connection unit 402 after precoding processing.
Referring to fig. 4, can be by the base station deployment of the embodiment of the present invention in the building Jiao Chu compared with lowrise, base station passes through active array
The upper part of antenna covers surrounding high building, and lower part covers ground.It, can be in vertical direction using the base station of the embodiment of the present invention
The upper multiple users of selection carry out MU-MIMO transmission using the airspace separation method on identical running time-frequency resource, carry out when sending
Precoding processing.In a specific example based on base station embodiment of the present invention, it is assumed that need to be sent to Active Arrays
The signal to be transmitted of the first user in the overlay area of 302 upward parts be X1, need to be sent to Active Arrays 302 to
The signal to be transmitted of second user in the overlay area of lower part is X2, and the first user is opposite with the channel of second user only
Vertical, the angle of arrival of the first user and second user is respectively θ1And θ2, when base station side sends signal, MU-MIMO precoding mould
Block 401 calculates pre-coding matrix P=[P1 (θ especially by the precoding algorithms of MU-MIMO1)P2(θ2)], and pass throughPrecoding processing is carried out, signal to be transmitted X is obtained；Two groups in Active Arrays 302 without
Source antenna subarray respectively on same running time-frequency resource emit signal to be transmitted X, in receiving end, the user terminal of the first user and
Linear receiver, which is respectively adopted, in the user terminal of second user can be detected out the echo signal for being sent to itselfWith
It further, further include that cell splitting processing is single in another embodiment of base station of the present invention referring back to Fig. 7
Member 303, for the two paths of signals configuration to needing to send by two groups of passive antenna subarrays respectively in Active Arrays 302
Different community identifies (ID), and is launched signal by Active Arrays 302.
Two different cells are distributed by the data information of two beams carries to Active Arrays vertical direction
ID realizes the cell splitting transmission of vertical direction, for example, Active Arrays original coverage sector is divided into two in vertical direction
A vertical sector is distributed the data information sent on two vertical direction wave beams to cell ID1 and cell ID2 respectively, is passed through
Different scrambling mode etc. distinguishes two cell informations.
The mode of vertical direction cell splitting and MU-MIMO through the foregoing embodiment, can be in identical running time-frequency resource
On two users into distinct coverage region transmit information, to improve cell throughout, while also covering meeting ground
High building is realized on the basis of lid precisely to cover.
Fig. 8 is the structural schematic diagram of Transmission system one embodiment of the present invention.As shown in figure 8, the biography of the embodiment of the present invention
Defeated system includes amplification forwarding equipment 501 and base station 502.Wherein, base station 502 is deployed on the first position height H1, base station 502
In the upper parts of Active Arrays 302 cover the region of the second height H2, the region of lower part covering third height H3, the
The region of three height H3 includes ground region；Wherein, H1 > 0,0≤H3≤H1≤H2.Wherein, base station 502 can be through the invention
The architecture of base station of above-mentioned Fig. 6 to Fig. 7 any embodiment is realized, it will be understood by those skilled in the art that Fig. 8 is exemplarily only shown
One of topology example, the topology example are not realized the base station of the present embodiment 502 and are construed as limiting.
Amplification forwarding equipment 501 is deployed in the region of the second height H2, for that will pass through Active Arrays 302
The signal that part wave beam is sent is launched after carrying out power amplification.
The double bounce Transmission system provided using the above embodiment of the present invention, can dispose amplification forwarding equipment at high building,
On ground, near-end user and remote subscriber region carry out sector division transmission, can be in phase by the beam splitting in vertical direction
User is distinguished by airspace on running time-frequency resource, realizes while defeated with keeping pouring in, solves traditional array antennas orthogonal sector point
The bad disadvantage of effect is split, cell throughout can be effectively promoted.As shown in figure 9, for a deployment of Transmission system of the present invention
Exemplary diagram.The Transmission system of the present embodiment includes the folding Active Arrays of vertical direction, Active Arrays deployment
Compared with lowrise building Jiao Chu, two multi-beam transmissions of vertical direction are being carried out, one of 91 region of wave cover terrestrial user, another
Upward wave cover high building region, amplification forwarding equipment 90 are deployed in high roof, the upward multi-beam transmission that base station is issued
Data information amplify forwarding, cover 92 region of terrestrial user, improve system using vertically oriented sector division
Entire throughput.User 91 is identical with the user terminal structure of user 92, including receiving unit, can to the signal received into
Row receives decoding.
The Transmission system that the above embodiment of the present invention provides includes the Active Arrays of above-described embodiment, due to Active Phased Array
Array antenna is foldable in vertical direction, can be deployed on the metope of building angle, be easy to dispose, and saves existing terrace resource；Separately
Outside, it since upper part is different from the angle of declination of lower part, can effectively realize the beam splitting in vertical direction, effectively be promoted big
Scale antennas orthogonal direction beam splitting effect, it is possible thereby to realize system by vertical cell splitting or design MU-MIMO algorithm
The promotion for handling capacity of uniting, efficiently solves the too low bring interference problem of traditional array antennas orthogonal direction beam splitting angle；
Meanwhile when Active Arrays are deployed in lowrise building angle, some antennas covering high building, lower some antennas may be implemented simultaneously
Ground is covered, the accurate covering problem of high building is solved, effectively reduces network lower deployment cost.
Further, referring back to Fig. 8, in a specific example of Transmission system embodiment of the present invention, amplification forwarding is set
Standby 501 specifically include receiving unit 601, radio frequency amplifying unit 602 and transmitting unit 603.Wherein:
Receiving unit 601, the signal that the upper subwave beam for receiving Active Arrays 302 is sent.
Radio frequency amplifying unit 602, the signal for receiving to receiving unit 601 carry out power amplification.
Transmitting unit 603, for emitting the signal after radio frequency amplifying unit 602 carries out power amplification.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with its
The difference of its embodiment, the same or similar part cross-reference between each embodiment.
Antenna of the invention, base station, system may be achieved in many ways.For example, hardware, firmware or hard can be passed through
Part, firmware any combination realize antenna of the invention, base station, system.
Antenna, base station and system based on the embodiment of the present invention consider to be based on the collapsible array antenna of vertical direction
It proposes specific embodiment and other specific embodiments under above system frame, belongs to the protection of the embodiment of the present invention
Range.
Description of the invention is given for the purpose of illustration and description, and is not exhaustively or will be of the invention
It is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.It selects and retouches
It states embodiment and is to more preferably illustrate the principle of the present invention and practical application, and those skilled in the art is enable to manage
The solution present invention is to design various embodiments suitable for specific applications with various modifications.
Claims (12)
1. a kind of Active Arrays, which is characterized in that drawn including two sub-array antennas, two groups of feeding networks, a set of radio frequency
Remote unit and a rotary shaft；
The Remote Radio Unit is divided into two parts up and down, and two parts up and down of the Remote Radio Unit pass through the rotation
Shaft connection, the angle rotatable range of rotary shaft are 0~180 degree；
Each sub-array antenna includes N number of antenna oscillator；Every group of feeding network includes N number of transmission unit；Wherein, the value of N is
Integer greater than 0；Each antenna oscillator in sub-array antenna is connect one by one with each transmission unit in feeding network, every group of correspondence
The sub-array antenna and feeding network of connection form one group of passive antenna subarray；
Two groups of passive antenna subarrays are respectively used to carry out antenna beam generation and optimization, two groups of passive antenna subarrays point
It is not connect with two parts up and down of Remote Radio Unit；In every group of feeding network the output end of each transmission unit respectively with radio frequency
The output end of extension unit connects, in every group of feeding network the input terminal of each transmission unit respectively with Remote Radio Unit input terminal
Connection.
2. antenna according to claim 1, which is characterized in that the angle rotatable range of the rotary shaft is specially 90~
120 degree.
3. antenna according to claim 1 or 2, which is characterized in that each antenna oscillator and feedback in the sub-array antenna
Each transmission unit in electric network connects one by one especially by blindmate mode.
4. antenna according to claim 1 or 2, which is characterized in that two groups of passive antenna subarrays are especially by blind
Slotting mode is connect with two parts up and down of Remote Radio Unit respectively.
5. antenna according to claim 1 or 2, which is characterized in that each transmission unit include switching network, phase shifter with
And input cable, it exports for being amplified to the input signal received from antenna oscillator, after phase shift to Remote Radio Unit, with
And the input signal that Remote Radio Unit is sent is amplified, is exported after phase shift to the antenna oscillator of connection.
6. antenna according to claim 1 or 2, which is characterized in that the Remote Radio Unit includes that power supply and power supply connect
The signal processing unit connect and the antenna connecting unit being connect respectively with signal processing unit, passive antenna subarray, wherein believing
Number processing unit for will institute's receiving antenna signal carry out frequency conversion, enhanced processing after forward, be arranged on the Remote Radio Unit
There is baseband interface, the signal for sending signal processing unit is transmitted to baseband processor, and baseband processor is sent
Signal be transmitted to signal processing unit；Antenna connecting unit respectively by signal processing unit send signal be transmitted to two groups without
Source antenna subarray, and the signal that two groups of passive antenna subarrays are sent is transmitted to signal processing unit.
7. a kind of base station, which is characterized in that including active array described in baseband processor and claim 1 to 6 any one
Antenna.
8. base station according to claim 7, which is characterized in that the baseband processor includes that how defeated multi-user-multi input is
MU-MIMO precoding module and radio frequency connection unit out；
The MU-MIMO precoding module is according to the angle of coverage θ of part on preconfigured Active Arrays1With lower part
Angle of coverage θ2, pre-coding matrix P=[P1 (θ is obtained by the precoding algorithms of MU-MIMO1)P2(θ2)], and utilize and prelist
Code matrix P is transmitted in the Active Arrays to after signal to be transmitted progress precoding processing by radio frequency connection unit
Remote Radio Unit.
9. base station according to claim 8, which is characterized in that be sent to the covering of the upward part of the Active Arrays
The signal to be transmitted of the first user in region is X1, is sent in the overlay area of the downward part of the Active Arrays
The signal to be transmitted of second user is X2；
When the MU-MIMO precoding module carries out precoding processing to signal X1 to be transmitted and X2 using pre-coding matrix P, tool
Body passes throughPrecoding processing is carried out, signal to be transmitted X is obtained；
Two groups of passive antenna subarrays in the Active Arrays emit signal to be transmitted on same running time-frequency resource respectively
X, in receiving end, the user terminal of first user and the user terminal of second user are respectively adopted linear receiver and detect
The echo signal of itselfWith
10. according to base station described in claim 7 to 9 any one, which is characterized in that it further include cell splitting processing unit,
For different to needing to configure by the two paths of signals that two groups of passive antenna subarrays are sent respectively in the Active Arrays
Cell ID.
11. a kind of Transmission system, which is characterized in that including described in amplification forwarding equipment and claim 7 to 10 any one
Base station；
For the base station deployment on the first position height H1, the upper part covering second of the Active Arrays in the base station is high
The region of H2 is spent, the region of lower part covering third height H3, the region of the third height H3 includes ground region；Wherein,
H1 > 0,0≤H3≤H1≤H2；
The amplification forwarding deployed with devices is in the region of the second height H2, for that will pass through the top of the Active Arrays
The signal that partial wave beam is sent is launched after carrying out power amplification.
12. system according to claim 11, which is characterized in that the amplification forwarding equipment includes receiving unit, radio frequency
Amplifying unit and transmitting unit；
The receiving unit, the signal that the upper subwave beam for receiving the Active Arrays is sent；
The radio frequency amplifying unit, the signal for receiving to the receiving unit carry out power amplification；
The transmitting unit, for emitting the signal after the radio frequency amplifying unit carries out power amplification.
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| CN113556156B (en) * | 2020-06-03 | 2023-08-08 | 中兴通讯股份有限公司 | 3D-MIMO antenna, parameter determination method thereof, base station, electronic device and readable medium |
| CN116438717A (en) * | 2020-12-11 | 2023-07-14 | 华为技术有限公司 | Base station antenna and base station equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102740509A (en) * | 2012-06-14 | 2012-10-17 | 华为技术有限公司 | Active antenna and base station |
| CN102986155A (en) * | 2010-06-17 | 2013-03-20 | 松下电器产业株式会社 | Pre-coding method and transmitter |
| CN103531880A (en) * | 2012-07-05 | 2014-01-22 | 中国电信股份有限公司 | Antenna device for multi-input multi-output system |
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| CN102986155A (en) * | 2010-06-17 | 2013-03-20 | 松下电器产业株式会社 | Pre-coding method and transmitter |
| CN102740509A (en) * | 2012-06-14 | 2012-10-17 | 华为技术有限公司 | Active antenna and base station |
| CN103531880A (en) * | 2012-07-05 | 2014-01-22 | 中国电信股份有限公司 | Antenna device for multi-input multi-output system |
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