CN105811105A - Active array antenna, base station and transmission system - Google Patents
Active array antenna, base station and transmission system Download PDFInfo
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- CN105811105A CN105811105A CN201410832219.8A CN201410832219A CN105811105A CN 105811105 A CN105811105 A CN 105811105A CN 201410832219 A CN201410832219 A CN 201410832219A CN 105811105 A CN105811105 A CN 105811105A
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Abstract
The embodiment of the invention discloses an active array antenna, a base station and a transmission system. The active array antenna comprises two antenna sub arrays, two groups of feed networks, a set of radio frequency head unit, and a rotation shaft. The radio frequency head unit has upper and low parts which are connected through the rotation shaft. Each of the antenna sub arrays comprises N antenna oscillators. Each group of feed networks comprises N transmission units. Each antenna oscillator in the antenna sub arrays and each transmission unit in the feed networks are in one to one connection, and a group of passive antenna sub array is formed by each group of antenna sub array and the feed network. Two groups of passive antenna sub arrays are connected to the upper and lower parts of the radio frequency head unit. The output end of each transmission unit in each group of feed networks is connected to the output end of the radio frequency head unit, and the input end of each transmission unit in each group of feed networks is connected to the input end of the radio frequency head unit. According to the embodiment of the invention, through the angle rotation of the rotation shaft of the radio frequency head unit in a vertical direction, the upper and lower parts of antenna can cover different vertical areas, the vertical direction beam splitting effect of a large scale array antenna is improved, and the cell throughput is raised.
Description
Technical field
The present invention relates to communication technology, especially a kind of Active Arrays, base station and transmission system.
Background technology
Along with developing rapidly of wireless communication technology, becoming the main business demand of current mobile user based on the multimedia service of image, video and internet browsing etc., its data traffic demand increased severely with day.Therefore, how to provide the user speed faster, more be connected to become the main target of Generation Mobile Communication System evolution during following 5G.Developing angle from antenna, the appearance of active antenna system is significant, and it can utilize array antenna vertical direction beam splitting to obtain higher throughput of system.In the technical discussion to following 5G network, antenna based on active antenna, higher can distinguish that the large scale array antenna of element number obtains extensive concern to provide the higher spatial degrees of freedom of antenna.Extensive antenna is capable of more transmitting terminal and the multiple receiving terminals independent communication on identical running time-frequency resource, and then is obviously improved the availability of frequency spectrum of high communication system.
But, from actual antennas test result, traditional planar array has many practical problems by the extensive allocating antenna following for impact, specifically includes that
Extensive antenna oscillator number is more, for instance 64,128, and even 256 antenna oscillators are integrated on a secondary physical antenna, and antenna size is relatively big, requires higher to terrace, comparatively eye-catching during future deployment；
Vertical direction cell splitting especially as active antenna design major technique advantage in beginning, owing to tradition planar array is subject to angle of declination restriction (being generally less than 15 degree), beam splitting poor effect in vertical direction, make upper and lower beam interference obvious, it is impossible to effectively to promote system entire throughput；
It addition, in existing network is disposed, because high building construction process is very fast, a lot of local high building is covered acquire a certain degree of difficulty, and the way being typically only possible by in-door covering solves, and causes that network design is relatively costly.
Summary of the invention
One to be solved of the embodiment of the present invention technical problem is that: for the problem that tradition planar array beam splitting poor effect in vertical direction, throughput of system are relatively low, a kind of Active Arrays, base station and transmission system are provided, to promote extensive antennas orthogonal direction wave beam splitting effect, promote cell throughout.
A kind of Active Arrays that the embodiment of the present invention provides, including two sub-array antennas, two groups of feeding networks, a set of Remote Radio Unit and a rotating shaft；
Described Remote Radio Unit is divided into upper and lower two parts, and two parts up and down of described Remote Radio Unit are connected by described rotating shaft, and the angle rotatable of rotating shaft ranges for 0～180 degree；
Each sub-array antenna includes N number of antenna oscillator；Often group feeding network includes N number of transmission unit；Wherein, the value of N is the integer more than 0；Each antenna oscillator in sub-array antenna is connected one by one with each transmission unit in feeding network, and the sub-array antenna that often group correspondence connects forms one group of passive antenna subarray with feeding network；
Two groups of passive antenna subarrays are respectively used to carry out antenna beam generation and optimization, and described two groups of passive antenna subarrays are connected with two parts up and down of Remote Radio Unit respectively；Often in group feeding network, the outfan of each transmission unit is connected with the outfan of Remote Radio Unit respectively, and often in group feeding network, the input of each transmission unit is connected with Remote Radio Unit input respectively.
In another embodiment based on the above-mentioned antenna of the present invention, the angle rotatable scope of described rotating shaft is specially 90～120 degree.
In another embodiment based on the above-mentioned antenna of the present invention, each antenna oscillator in described sub-array antenna is connected especially by blindmate mode one by one with each transmission unit in feeding network.
In another embodiment based on the above-mentioned antenna of the present invention, described two groups of passive antenna subarrays are connected with two parts up and down of Remote Radio Unit respectively especially by blindmate mode.
In another embodiment based on the above-mentioned antenna of the present invention, each transmission unit includes switching network, phase shifter and input cable, export for the input signal being received from antenna oscillator is amplified, after phase shift to Remote Radio Unit, and the input signal sent by Remote Radio Unit is amplified, after phase shift output to the antenna oscillator connected.
In another embodiment based on the above-mentioned antenna of the present invention, described Remote Radio Unit includes the signal processing unit that power supply is connected and the antenna connecting unit being connected with signal processing unit, passive antenna subarray respectively with power supply, wherein signal processing unit is for forwarding after institute's reception antenna signal carries out frequency conversion, processing and amplifying, described Remote Radio Unit is provided with baseband interface, signal for being sent by signal processing unit transmits to baseband processor, and signal baseband processor sent transmits to signal processing unit；The signal transmission that signal processing unit is sent by antenna connecting unit respectively is to two groups of passive antenna subarrays, and the signal sent by two groups of passive antenna subarrays transmits to signal processing unit.
A kind of base station that the embodiment of the present invention provides, including the Active Arrays of any of the above-described embodiment of baseband processor and the present invention.
In another embodiment based on the above-mentioned base station of the present invention, described baseband processor includes multi-user-multiple-input and multiple-output MU-MIMO precoding module and radio frequency connects unit；
Described MU-MIMO precoding module is according to the angle of coverage θ of part on the Active Arrays being pre-configured with1Angle of coverage θ with lower part2, obtain pre-coding matrix P=[P1 (θ by the precoding algorithms of MU-MIMO1)P2(θ2)], and utilize pre-coding matrix P after signal to be transmitted carries out precoding processing, to pass through the Remote Radio Unit in radio frequency connection unit transmission extremely described Active Arrays.
In another embodiment based on the above-mentioned base station of the present invention, the signal to be transmitted of the first user being sent in the overlay area of described Active Arrays upwards part is X1, and the signal to be transmitted of the second user being sent in the overlay area of described Active Arrays part downwards is X2；
When described MU-MIMO precoding module utilizes pre-coding matrix P that signal X1 and X2 to be transmitted is carried out precoding processing, especially by Carry out precoding processing, obtain signal to be transmitted X；
Two groups of passive antenna subarrays in described Active Arrays launch signal to be transmitted X respectively on same running time-frequency resource, it is respectively adopted linear receiver at receiving terminal, the user terminal of described first user and the user terminal of the second user and detects the echo signal of selfWith
In another embodiment based on the above-mentioned base station of the present invention, also include cell splitting processing unit, for the differently configured cell ID of two paths of signals sent respectively through two groups of passive antenna subarrays in the described Active Arrays of needs.
The one transmission system that the embodiment of the present invention provides, including the base station of any of the above-described embodiment of amplification forwarding equipment and the present invention；
Described base station deployment is on the first height H1 position, and the upper part of the Active Arrays in described base station covers the region of the second height H2, and lower part covers the region of third height H3, and the region of described third height H3 includes ground region；Wherein, H1 > 0,0≤H3≤H1≤H2；
Described amplification forwarding deployed with devices is in the region of the second height H2, for launching after the signal sent by the upper subwave bundle of described Active Arrays is carried out power amplification.
Based in another embodiment of said system of the present invention, described amplification forwarding equipment includes receiving unit, radio frequency amplifying unit and transmitter unit；
Described reception unit, the signal that the upper subwave bundle for receiving described Active Arrays sends；
Described radio frequency amplifying unit, carries out power amplification for the signal that described reception unit is received；
Described transmitter unit, for launching the signal after described 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 is folding rotary in vertical direction, it is possible to be deployed on the metope of angle, building, it is easy to disposes, saves existing terrace resource；Additionally, owing to upper part is different from the angle of declination of lower part, can effectively realize the beam splitting in vertical direction, effectively promote extensive antennas orthogonal direction wave beam splitting effect, thus can pass through vertical cell splitting or design multi-user-multiple-input and multiple-output (MU-MIMO) algorithm, it is achieved the lifting of throughput of system；Meanwhile, when Active Arrays being deployed in angle, lowrise building, it is possible to achieve upper some antennas covers high building, lower part antenna covers ground, solves the accurate covering problem of high building, effectively reduces network design cost simultaneously.
The novel extensive antenna configurations that the embodiment of the present invention proposes goes for following 5G and later multiple antennas solution, meets future wireless network deployment request.
Below by drawings and Examples, technical scheme is described in further detail.
Accompanying drawing explanation
The accompanying drawing constituting a part for description describes embodiments of the invention, and is used for explaining principles of the invention together with describing.
With reference to accompanying drawing, according to detailed description below, it is possible to be more clearly understood from the present invention, wherein:
Fig. 1 is the structural representation of one embodiment of Active Arrays of the present invention.
Fig. 2 is the side-looking structural representation of embodiment illustrated in fig. 1 Active Arrays.
Fig. 3 is another structural representation 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 representation of another embodiment of Active Arrays of the present invention.
Fig. 6 is the structural representation of one embodiment in base station of the present invention.
Fig. 7 is the structural representation of another embodiment of base station of the present invention.
Fig. 8 is the structural representation that the present invention transmits one embodiment of system.
Fig. 9 is the deployment example figure that the present invention transmits system.
Detailed description of the invention
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should also be noted that unless specifically stated otherwise, the parts otherwise set forth in these embodiments and positioned opposite, the numerical expression of step and numerical value do not limit the scope of the invention.
Simultaneously, it should be appreciated that for the ease of describing, the size of the various piece shown in accompanying drawing is not draw according to actual proportionate relationship.
Description only actually at least one exemplary embodiment is illustrative below, never as any restriction to the present invention and application or use.
The known technology of person of ordinary skill in the relevant, method and apparatus are likely to be not discussed in detail, but in the appropriate case, described technology, method and apparatus should be considered a part for description.
Shown here with in all examples discussed, any occurrence should be construed as merely exemplary, not as restriction.Therefore, other example of exemplary embodiment can have different values.
It should also be noted that similar label and letter below figure represent similar terms, therefore, once a certain Xiang Yi accompanying drawing is defined, then it need not be further discussed in accompanying drawing subsequently.
Fig. 1 is the structural representation of one embodiment of Active Arrays of the present invention.Fig. 2 is the side-looking structural representation of embodiment illustrated in fig. 1 Active Arrays.Fig. 3 is another structural representation of Active Arrays embodiment of the present invention.
Referring to Fig. 1～Fig. 3, the Active Arrays of the embodiment of the present invention includes 101, two groups of feeding networks 102 of two sub-array antennas, a set of Remote Radio Unit (RRU) 103 and a rotating shaft 104.Wherein, RRU103 is divided into upper and lower two parts, two parts up and down of RRU103 are connected by rotating shaft 104, the angle rotatable of rotating shaft 104 ranges for 0～180 degree, in one particular embodiment of the present invention, the default angle of rotating shaft 104 is 90 degree, can carry out angle adjustment at 0～30 degree, that is: the angle rotatable scope of rotating shaft 104 can be specifically 90～120 degree, and concrete angle can cover demand according to reality and be obtained by unified Baseband algorithms.
The structure of two sub-array antennas 101 is identical, and each sub-array antenna 101 includes N number of antenna oscillator 201；The structure of two groups of feeding networks 102 is identical, and often group feeding network 102 includes N number of transmission unit 202, and number is identical with the number of antenna oscillator 201 in sub-array antenna 101.Wherein, the value of N is the integer more than 0.In actual applications, the value of N specifically sets according to the requirement of antenna oscillator number, the embodiment of the present invention considers the Active Arrays being applicable to many oscillators, so N value number is typically larger than 4, exemplarily for dual polarized antenna in embodiment illustrated in fig. 3, each sub-array antenna 101 specifically includes 4 dual-polarized antenna vibrators, and this example is not intended that the restriction to the embodiment of the present invention.Antenna oscillator 201 transmits to feeding network 102 for receiving signal, is also used for the output signal of feeding network 102 to emission.Each antenna oscillator 201 in sub-array antenna 101 is connected one by one with each transmission unit 202 in feeding network 102, and the sub-array antenna 101 that often group correspondence connects forms one group of passive antenna subarray with feeding network 102.
Two groups of passive antenna subarrays are respectively used to carry out antenna beam generation and optimization, and two groups of passive antenna subarrays are connected with two parts up and down of RRU103 respectively；Often in group feeding network 102, the outfan of each transmission unit 202 is connected with the outfan of RRU103 respectively, and often in group feeding network 102, the input of each transmission unit 202 is connected with RRU103 input respectively.
The Active Arrays that the above embodiment of the present invention provides, folding rotary in vertical direction, it is possible to be deployed on the metope of angle, building, it is easy to dispose, save existing terrace resource, it is adaptable to the extensive Active Arrays that antenna oscillator number is more；Additionally, owing to upper part is different from the angle of declination of lower part, it is possible to effectively realize the beam splitting in vertical direction, effectively promote extensive antennas orthogonal direction wave beam splitting effect, thus can by vertical cell splitting or design MU-MIMO algorithm, it is achieved the lifting of throughput of system；Meanwhile, when Active Arrays being deployed in angle, lowrise building, it is possible to achieve upper some antennas covers high building, lower part antenna covers ground, solves the accurate covering problem of high building, effectively reduces network design cost simultaneously.
As shown in Figure 4, for an overlay area schematic diagram of Active Arrays in the embodiment of the present invention.The Active Arrays of various embodiments of the present invention can be deployed in the Lou Jiaochu of relatively lowrise, and (angle of coverage is expressed as θ in the overlay area of upper part1) including high building around, (angle of coverage is expressed as θ in the overlay area of lower part2) include ground, it is possible to cover the vertical direction of certain level physical region simultaneously, just can be realized cell splitting and MU-MIMO transmission by unified Baseband algorithms.
In a concrete example of each embodiment of Active Arrays of the present invention, each antenna oscillator 201 in sub-array antenna 101 specifically can pass through blindmate mode and be connected one by one with each transmission unit 202 in feeding network 102, that is: there is no privately owned interface between sub-array antenna 101 and feeding network 102, as long as antenna oscillator 201 mates with the size of transmission unit 202, sub-array antenna 101 just can be directly connected to feeding network 102, and the two is without for same producer product.
In another concrete example of each embodiment of Active Arrays of the present invention, two groups of passive antenna subarrays specifically can also pass through blindmate mode and be connected with two parts up and down of RRU103 respectively.That is: not having privately owned interface between passive antenna subarray and RRU103, as long as the size coupling of the two, just can be directly connected to, the two is without for same producer product.
Sub-array antenna in the above embodiment of the present invention, feeding network and RRU are separate, blindmate mode is adopted to connect, even if the internal structure of feeding network or RRU changes, if interface size constancy, Active Arrays can't be produced impact, the investigation respectively being capable of Active Arrays each several part is safeguarded, effectively reduces exploitation and the O&M cost of Active Arrays.
Additionally, in another concrete example of each embodiment of Active Arrays of the present invention, each transmission unit 202 specifically can include switching network, phase shifter and input cable, export for the input signal being received from antenna oscillator 201 is amplified, after phase shift to RRU103, and the input signal sent by RRU103 is amplified, after phase shift output to the antenna oscillator 201 connected.
Fig. 5 is the structural representation of another embodiment of Active Arrays of the present invention.As shown in Figure 5, in this embodiment, RRU103 specifically includes the signal processing unit 204 that power supply 203 is connected and the antenna connecting unit 205 being connected with signal processing unit 204, passive antenna subarray respectively with power supply 203, wherein signal processing unit 204 sends after reception signal is carried out frequency conversion, processing and amplifying, and antenna connecting unit 205 is specifically connected with the feeding network 102 in passive antenna subarray.Being provided with baseband interface 206 on RRU103, the signal for being sent by signal processing unit 204 transmits to baseband processor, and signal baseband processor sent transmits to signal processing unit 204.The signal that signal processing unit 204 is sent by antenna connecting unit 205 respectively transmits to two groups of passive antenna subarrays (the concrete feeding network 102 transmitted to passive antenna subarray), so that two groups of passive antenna subarrays each carry out antenna beam optimization according to distribu-tion index respectively, and the signal sent by two groups of passive antenna subarrays (being specially the feeding network 102 in passive antenna subarray) transmits to signal processing unit 204.
Fig. 6 is the structural representation of one embodiment in base station of the present invention.As shown in Figure 6, the base station of the embodiment of the present invention includes baseband processor 301 and Active Arrays 302.Wherein, Active Arrays 302 can be realized by the Active Arrays structure of above-mentioned Fig. 1 to Fig. 5 any embodiment of the present invention, it will be appreciated by those skilled in the art that, Fig. 6 is exemplarily only shown in which a topology example, and the Active Arrays 302 of the present embodiment is not realized being construed as limiting by this topology example.
The base station that the above embodiment of the present invention provides includes the Active Arrays of above-described embodiment, owing to Active Arrays is collapsible in vertical direction, it is possible to be deployed on the metope of angle, building, it is easy to disposes, saves existing terrace resource；Additionally, owing to upper part is different from the angle of declination of lower part, it is possible to effectively realize the beam splitting in vertical direction, effectively promote extensive antennas orthogonal direction wave beam splitting effect, thus can by vertical cell splitting or design MU-MIMO algorithm, it is achieved the lifting of throughput of system；Meanwhile, when Active Arrays being deployed in angle, lowrise building, it is possible to achieve upper some antennas covers high building, lower part antenna covers ground, solves the accurate covering problem of high building, effectively reduces network design cost simultaneously.
Fig. 7 is the structural representation of another embodiment of base station of the present invention.As it is shown in fig. 7, in this embodiment, baseband processor 301 includes MU-MIMO precoding module 401 and radio frequency connects unit 402.Wherein.MU-MIMO precoding module 401 is according to the angle of coverage θ of part on the Active Arrays 302 being pre-configured with1Angle of coverage θ with lower part2, obtain pre-coding matrix P=[P1 (θ by the precoding algorithms of MU-MIMO1)P2(θ2)], and connect unit 402 by radio frequency after utilizing this pre-coding matrix P that signal to be transmitted is carried out precoding processing and transmit the RRU103 to Active Arrays 302.
Referring to Fig. 4, it is possible to by the base station deployment of the embodiment of the present invention in the Lou Jiaochu of relatively lowrise, base station covers high building around by the upper part of Active Arrays, and lower part covers ground.Utilize the base station of the embodiment of the present invention, it is possible to select multiple user in vertical direction, utilize the spatial domain separation method on identical running time-frequency resource, carry out MU-MIMO transmission, carry out precoding processing when sending.Based in a concrete example of base station embodiment of the present invention, assume that the signal to be transmitted needing the first user being sent in the overlay area of Active Arrays 302 upwards part is X1, the signal to be transmitted needing the second user being sent in the overlay area of Active Arrays 302 part downwards is X2, the channel of first user and the second user is relatively independent, first user and the second user arrival angle respectively θ1And θ2, when base station side sends signal, MU-MIMO precoding module 401 calculates pre-coding matrix P=[P1 (θ especially by the precoding algorithms of MU-MIMO1)P2(θ2)], and pass through Carry out precoding processing, obtain signal to be transmitted X；Two groups of passive antenna subarrays in Active Arrays 302 launch signal to be transmitted X respectively on same running time-frequency resource, it is respectively adopted linear receiver at receiving terminal, the user terminal of first user and the user terminal of the second user and namely can detect that the echo signal being sent to selfWith
Further, referring back to Fig. 7, in another embodiment of base station of the present invention, also include cell splitting processing unit 303, for to needing the differently configured cell ID of the two paths of signals (ID) that sends in Active Arrays 302 respectively through two groups of passive antenna subarrays, and by Active Arrays 302, signal is launched.
Two different community ID are distributed by the data message of two beams carry to Active Arrays vertical direction, achieve the cell splitting transmission of vertical direction, such as, former for Active Arrays coverage sector is divided into two vertical sector in the vertical direction, the data message sent on two vertical direction wave beams is respectively allocated community ID1 and community ID2, by different scrambling modes etc., distinguish two cell informations.
Mode by the vertical direction cell splitting of above-described embodiment and MU-MIMO, information can be transmitted to two users in distinct coverage region on identical running time-frequency resource, thus improving cell throughout, on the basis meet covered ground, also achieving high building simultaneously and precisely covering.
Fig. 8 is the structural representation that the present invention transmits one embodiment of system.As shown in Figure 8, the transmission system of the embodiment of the present invention includes amplification forwarding equipment 501 and base station 502.Wherein, base station 502 is deployed on the first height H1 position, and the upper part of the Active Arrays 302 in base station 502 covers the region of the second height H2, and lower part covers the region of third height H3, and the region of third height H3 includes ground region；Wherein, H1 > 0,0≤H3≤H1≤H2.Wherein, base station 502 can be realized by the architecture of base station of above-mentioned Fig. 6 to Fig. 7 any embodiment of the present invention, it will be understood by those skilled in the art that Fig. 8 is exemplarily only shown in which a topology example, the base station 502 of the present embodiment is not realized being construed as limiting by this topology example.
Amplification forwarding equipment 501 is deployed in the region of the second height H2, for launching after the signal sent by the upper subwave bundle of Active Arrays 302 is carried out power amplification.
Utilize the double bounce transmission system that the above embodiment of the present invention provides, amplification forwarding equipment can be disposed at high building place, sector division transmission is carried out in ground near-end user and remote subscriber region, on identical running time-frequency resource, user can be distinguished by spatial domain by the beam splitting in vertical direction, achieve simultaneously defeated with keeping pouring in, solve the shortcoming that traditional array antennas orthogonal sector splitting effect is bad, it is possible to effectively promote cell throughout.As it is shown in figure 9, transmit a deployment example figure of system for the present invention.The transmission system of the present embodiment includes the folding Active Arrays of vertical direction, this Active Arrays is deployed in relatively lowrise building Jiao Chu, carry out two multi-beam transmission of vertical direction, one of them wave cover terrestrial user 1 region, wave beam 2 covers high building region, and amplification forwarding equipment 2 is deployed in high roof, and the data message that the wave beam 2 upwards sent base station transmits is amplified forwarding, cover terrestrial user 2 region, utilize vertically oriented sector division to improve the entire throughput of system.User 1 is identical with the user terminal structure of user 2, including receiving unit, it is possible to be received decoding to the received signal.
The transmission system that the above embodiment of the present invention provides includes the Active Arrays of above-described embodiment, owing to Active Arrays is collapsible in vertical direction, it is possible to be deployed on the metope of angle, building, it is easy to disposes, saves existing terrace resource；Additionally, owing to upper part is different from the angle of declination of lower part, can effectively realize the beam splitting in vertical direction, effectively promote extensive antennas orthogonal direction wave beam splitting effect, thus can by vertical cell splitting or design MU-MIMO algorithm, realize the lifting of throughput of system, efficiently solve the traditional array antennas orthogonal too low interference problem brought of direction wave beam splitting angle；Meanwhile, when Active Arrays being deployed in angle, lowrise building, it is possible to achieve upper some antennas covers high building, lower part antenna covers ground, solves the accurate covering problem of high building, effectively reduces network design cost simultaneously.
Further, referring back to Fig. 8, transmitting in a concrete example of system embodiment in the present invention, amplification forwarding equipment 501 specifically includes reception unit 601, radio frequency amplifying unit 602 and transmitter unit 603.Wherein:
Receive unit 601, the signal that the upper subwave bundle for receiving Active Arrays 302 sends.
Radio frequency amplifying unit 602, carries out power amplification for the signal that reception unit 601 is received.
Transmitter unit 603, for launching the signal after radio frequency amplifying unit 602 carries out power amplification.
In this specification, each embodiment all adopts the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, same or analogous part cross-reference between each embodiment.
It is likely to be achieved in many ways the antenna of the present invention, base station, system.Such as, the antenna of the present invention, base station, system can be realized by any combination of hardware, firmware or hardware, firmware.
Based on antenna, base station and system that the embodiment of the present invention provides, it is considered to propose specific embodiment and other specific embodiments under said system framework based on the collapsible array antenna of vertical direction, belong to the protection domain of the embodiment of the present invention.
Description of the invention provides for example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is in order to principles of the invention and practical application are better described, and makes those of ordinary skill in the art it will be appreciated that the present invention is thus design is suitable to the various embodiments with various amendments of special-purpose.
Claims (12)
1. an Active Arrays, it is characterised in that include two sub-array antennas, two groups of feeding networks, a set of Remote Radio Unit and a rotating shaft；
Described Remote Radio Unit is divided into upper and lower two parts, and two parts up and down of described Remote Radio Unit are connected by described rotating shaft, and the angle rotatable of rotating shaft ranges for 0～180 degree；
Each sub-array antenna includes N number of antenna oscillator；Often group feeding network includes N number of transmission unit；Wherein, the value of N is the integer more than 0；Each antenna oscillator in sub-array antenna is connected one by one with each transmission unit in feeding network, and the sub-array antenna that often group correspondence connects forms one group of passive antenna subarray with feeding network；
Two groups of passive antenna subarrays are respectively used to carry out antenna beam generation and optimization, and described two groups of passive antenna subarrays are connected with two parts up and down of Remote Radio Unit respectively；Often in group feeding network, the outfan of each transmission unit is connected with the outfan of Remote Radio Unit respectively, and often in group feeding network, the input of each transmission unit is connected with Remote Radio Unit input respectively.
2. antenna according to claim 1, it is characterised in that the angle rotatable scope of described rotating shaft is specially 90～120 degree.
3. method according to claim 1 and 2, it is characterised in that each antenna oscillator in described sub-array antenna is connected especially by blindmate mode one by one with each transmission unit in feeding network.
4. the method according to claims 1 to 3 any one, it is characterised in that described two groups of passive antenna subarrays are connected with two parts up and down of Remote Radio Unit respectively especially by blindmate mode.
5. the method according to Claims 1-4 any one, it is characterized in that, each transmission unit includes switching network, phase shifter and input cable, export for the input signal being received from antenna oscillator is amplified, after phase shift to Remote Radio Unit, and the input signal sent by Remote Radio Unit is amplified, after phase shift output to the antenna oscillator connected.
6. the method according to claim 1 to 5 any one, it is characterized in that, described Remote Radio Unit includes the signal processing unit that power supply is connected and the antenna connecting unit being connected with signal processing unit, passive antenna subarray respectively with power supply, wherein signal processing unit is for forwarding after institute's reception antenna signal carries out frequency conversion, processing and amplifying, described Remote Radio Unit is provided with baseband interface, signal for being sent by signal processing unit transmits to baseband processor, and signal baseband processor sent transmits to signal processing unit；The signal transmission that signal processing unit is sent by antenna connecting unit respectively is to two groups of passive antenna subarrays, and the signal sent by two groups of passive antenna subarrays transmits to signal processing unit.
7. a base station, it is characterised in that include the Active Arrays described in baseband processor and claim 1 to 6 any one.
8. base station according to claim 7, it is characterised in that described baseband processor includes multi-user-multiple-input and multiple-output MU-MIMO precoding module and radio frequency connects unit；
Described MU-MIMO precoding module is according to the angle of coverage θ of part on the Active Arrays being pre-configured with1Angle of coverage θ with lower part2, obtain pre-coding matrix P=[P1 (θ by the precoding algorithms of MU-MIMO1)P2(θ2)], and utilize pre-coding matrix P after signal to be transmitted carries out precoding processing, to pass through the Remote Radio Unit in radio frequency connection unit transmission extremely described Active Arrays.
9. base station according to claim 8, it is characterized in that, the signal to be transmitted of the first user being sent in the overlay area of described Active Arrays upwards part is X1, and the signal to be transmitted of the second user being sent in the overlay area of described Active Arrays part downwards is X2；
When described MU-MIMO precoding module utilizes pre-coding matrix P that signal X1 and X2 to be transmitted is carried out precoding processing, especially byCarry out precoding processing, obtain signal to be transmitted X；
Two groups of passive antenna subarrays in described Active Arrays launch signal to be transmitted X respectively on same running time-frequency resource, it is respectively adopted linear receiver at receiving terminal, the user terminal of described first user and the user terminal of the second user and detects the echo signal of selfWith
10. the base station according to claim 7 to 9 any one, it is characterised in that also include cell splitting processing unit, for the differently configured cell ID of two paths of signals sent respectively through two groups of passive antenna subarrays in the described Active Arrays of needs.
11. a transmission system, it is characterised in that include the base station described in amplification forwarding equipment and claim 7 to 10 any one；
Described base station deployment is on the first height H1 position, and the upper part of the Active Arrays in described base station covers the region of the second height H2, and lower part covers the region of third height H3, and the region of described third height H3 includes ground region；Wherein, H1 > 0,0≤H3≤H1≤H2；
Described amplification forwarding deployed with devices is in the region of the second height H2, for launching after the signal sent by the upper subwave bundle of described Active Arrays is carried out power amplification.
12. system according to claim 11, it is characterised in that described amplification forwarding equipment includes receiving unit, radio frequency amplifying unit and transmitter unit；
Described reception unit, the signal that the upper subwave bundle for receiving described Active Arrays sends；
Described radio frequency amplifying unit, carries out power amplification for the signal that described reception unit is received；
Described transmitter unit, for launching the signal after described radio frequency amplifying unit carries out power amplification.
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| CN201410832219.8A CN105811105B (en) | 2014-12-29 | 2014-12-29 | Active Arrays, base station and Transmission system |
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| CN107946780A (en) * | 2017-12-18 | 2018-04-20 | 罗森伯格技术（昆山）有限公司 | A kind of integrated antenna for base station |
| CN108023626A (en) * | 2016-11-02 | 2018-05-11 | 中兴通讯股份有限公司 | A kind of array antenna combination, the method and device of beam switchover |
| CN113556156A (en) * | 2020-06-03 | 2021-10-26 | 中兴通讯股份有限公司 | Parameter determination method for 3D-MIMO antenna, base station, electronic device, and storage medium |
| WO2022120857A1 (en) * | 2020-12-11 | 2022-06-16 | 华为技术有限公司 | Base station antenna and base station device |
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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 |
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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 |
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| CN108023626A (en) * | 2016-11-02 | 2018-05-11 | 中兴通讯股份有限公司 | A kind of array antenna combination, the method and device of beam switchover |
| CN107946780A (en) * | 2017-12-18 | 2018-04-20 | 罗森伯格技术（昆山）有限公司 | A kind of integrated antenna for base station |
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| CN113556156A (en) * | 2020-06-03 | 2021-10-26 | 中兴通讯股份有限公司 | Parameter determination method for 3D-MIMO antenna, base station, electronic device, and storage medium |
| 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 |
| WO2022120857A1 (en) * | 2020-12-11 | 2022-06-16 | 华为技术有限公司 | Base station antenna and base station device |
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| CN105811105B (en) | 2019-02-26 |
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