[summary of the invention]
Primary and foremost purpose of the present invention is to change the traditional logic of assembled relation between Remote Radio Unit and antenna, provides that a kind of volume is small and exquisite, function admirable, multifunction, is convenient to the active capping unit of group battle array flexibly.
Another object of the present invention is to provide a kind of active covering array, it has organizes formation formula flexibly, can realize the configuration of macro base station or multiple-input and multiple-output (MIMO) platform.
For realizing object of the present invention, the present invention adopts following technical scheme:
Active capping unit of the present invention, comprises single radiating doublet for receiving or launch signal of communication, for signal of communication being amplified to the RF processing unit of processing, and heat sink, wherein:
Described radiating doublet is installed on the end face of the first panel, described RF processing unit is integrated on some the second panels, between described each second panel, by blindmate connector, realize the electric connection of RF processing unit self, described radiating doublet is connected with the RF processing unit on described the second panel;
The back side that defines described the first panel is installing space to the cylindrical space of downward-extension, within the scope of this installing space, described each second panel is erect the back side that is installed in the first panel, between each second panel, parallel side by side to reserve at least one ventilation conduit, at least one side of described installing space is provided with described heat sink.
This active capping unit also comprises the baseband processing unit for described signal of communication being processed in base band level, this baseband processing unit is integrated on the 3rd panel being arranged side by side parallel with described the second panel, the 3rd panel is placed within the scope of described installing space, described the first back side of panel is fixed in setting, between the second panel and the 3rd panel, by blindmate connector, realizes being connected between baseband processing unit and RF processing unit.
Preferably, a pair of opposite flank of described installing space is equiped with respectively described heat sink, two heat sinks with described each the second panel is parallel is arranged side by side.Described heat sink has the front that a tabular back side and one is provided with a plurality of needle-like teeth, with its back side and described each second panel, erects abreast mutually the back side that is installed in described the first panel.Described heat sink is with its back side and the adjacent panel installation that fits with it.
In described each panel, one of be at least provided with the ventilation hole that connects self, more to optimize radiating effect.
Concrete, one of described second panel be integrated with belong to RF processing unit for described signal of communication being amplified to the power amplifier module of processing, two of described the second panel be integrated with belong to RF processing unit for signal of communication being carried out to the digital-to-analogue of digital-to-analogue exchange, exchange module, three of described the second panel be integrated with belong to RF processing unit for signal of communication is carried out to digital processing, digital processing and interface module that PERCOM peripheral communication connects, described signal of communication is after the signaling interface access in digital processing and interface module, carry out digital processing, by described digital-to-analogue, exchanging module changes, after described power amplifier module amplifies, export in described radiating doublet and launch again.
For ease of controlling, in described digital processing and interface module, be also provided with monitor-interface, its control unit default with one is connected, and this control unit is exported to the phase place of the signal of communication of described radiating doublet for obtaining the classical insulation of active capping unit and sending instruction with change to active capping unit.Preferably, described control unit is placed in the outside of this active capping unit.
For ease of installing mutually with other parts, this active capping unit bottom arranges a mounting bracket.
Active covering array of the present invention, it comprises a plurality of foregoing active capping units, forms array, and all active capping units share same described control unit.
Compared with prior art, tool of the present invention has the following advantages:
1, by an independent radiating doublet and RF processing unit are integrated in respectively on a plurality of panels, to simplify with compact structure, they are integrated, can greatly reduce the volume of the whole active capping unit that formed by them; For taking into account radiating effect, heat radiation through hole is also set on described panel, between panel and panel, thermal dissipating path is set, and further install special heating panel additional, on the basis reducing at volume, also there is more rational heat dissipation design, therefore can guarantee that its electric property just obtains effective guarantee.
2, by an independent radiating doublet is integrated on the first panel, utilize the back side of the first panel that sufficient installing space is provided, allow that other panel setting that is integrated with interlock circuit functional module is arranged on the first panel, thereby realize the function increase and decrease of whole active capping unit.Particularly, active capping unit both can only install the second panel of RF processing unit integrated for installing the first panel bottom surface of radiating doublet at it, also can further in the bottom surface of the first panel, install again the 3rd panel of baseband processing unit additional integrated.The former forms a miniature Remote Radio Unit, and the latter forms a miniature base station.As can be seen here, the Function Extension of active capping unit is very flexible.
3, due to monitor-interface being provided, by external control unit, be connected with monitor-interface, just can detect and arrange the classical insulation of the functional units such as radiating doublet and RF processing unit, baseband processing unit, for external control provides effective solution.On this basis, just can a plurality of active capping units be set by the mode of arranging with matrix and form active covering array, according to practical application, need to arrange the classical insulation of each active capping unit, these active capping units are cooperated mutually, thereby play the effects such as macro base station, MIMO.
[embodiment]
Below in conjunction with drawings and Examples, the present invention is further illustrated:
Refer to Fig. 1, Fig. 2 and Fig. 3, active capping unit of the present invention, comprise single radiating doublet 10 for receiving or launch signal of communication, for signal of communication being amplified to RF processing unit (21,22,23 the combination of processing, lower with), the available baseband processing unit 31 for described signal of communication being processed in base band level, and a pair of heat sink 4.
Described radiating doublet 10, it is connected with RF processing unit, under be about to the signal amplitude of RF processing unit and be mapped in the air, on be about to spacing wave and be transferred to RF processing unit, it is fixedly mounted on the end face of first panel 1, and the bottom surface of the first panel 1 offers other parts as installation base surface and is fixed.On the bottom surface of the first panel 1, also be provided with a radio-frequency joint 11 being connected with radiating doublet 10 through the first panel 1, this radio-frequency joint 11 is for being connected with RF processing unit, so that the descending communication signal of radiating doublet 10 after radio-frequency joint 11 received RF processing units amplify be with to aerial radiation, and so that radiating doublet 10 through radio-frequency joints 11 to RF processing unit transmission from aerial uplink communication signal.
Described RF processing unit, i.e. Remote Radio Unit, dawn known to those skilled in the art, its principle is by two duplexers (not shown) or the separated uplink and downlink signal of like, thereby forms descending and up totally two links.In down link, will be from baseband processing unit 31(or base station by down-conversion device (not shown)) downlink radio-frequency signal frequency reducing after, through power amplifier (not shown), signal is amplified, by means of upconversion (not shown), signal is reverted to radio-frequency stage again, then through duplexer, export to radiating doublet 10; In up link, by down-conversion device by after up radiofrequency signal frequency reducing, after low noise amplifier (not shown) filter out noise, then by means of upconversion, signal is reduced into radio-frequency stage, then through duplexer, is transferred to higher level's baseband processing unit 31(or base station).The circuit structure of RF processing unit; all to improve based on above-mentioned principle; for example; for the RF processing unit that carries out digital processing; can set up for the analog-to-digital conversion module that is digital system by signal from analog system conversion; and the D/A converter module that plays reverse conversion effect, analog-to-digital conversion module and D/A converter module can be referred to as digital-to-analogue and be exchanged module 22.In like manner, described power amplifier and low noise amplifier can be referred to as power amplifier module 21.And for example, for the ease of RF processing unit, be connected with baseband processing unit 31, further set up for signal of communication being carried out to digital processing and the interface module 23 of digital processing, PERCOM peripheral communication connection, by digital processing and interface module 23, provide optical fiber access port 231.For another example, for the ease of the classical insulation of monitoring RF processing unit and radiating doublet 10, monitor-interface 230 etc. is set, monitor-interface 230 is integrated in digital processing and interface module 23 equally.Like that, be well known to the skilled person, do not repeat for this reason.In the present invention, by each functional module of RF processing unit, be duplexer, down-conversion device, means of upconversion, power amplifier, low noise amplifier, digital processing and interface module 23 etc., all discrete set is formed on several second panels 2 neatly.
In the present embodiment, RF processing unit has function of digitalized processing, thereby the function realizing according to each functional module, connection convenience, mainly used 2 pairs of RF processing units of three the second panels to carry out integrated.Particularly, one of described second panel 2 be mainly integrated with belong to RF processing unit for described signal of communication being amplified to the power amplifier module 21 of processing, two of described the second panel 2 be integrated with belong to RF processing unit for signal of communication being carried out to the digital-to-analogue of digital-to-analogue exchange, exchange module 22, three of described the second panel 2 be integrated with belong to RF processing unit for signal of communication is carried out to digital processing, digital processing and interface module 23 that PERCOM peripheral communication connects, described signal of communication, upstream or downstream no matter, all after the signaling interface access in digital processing and interface module 23, carry out digital processing, by described digital-to-analogue, exchanging module 22 changes, after amplifying, described power amplifier module 21 exports transmitting in described radiating doublet 10 to again.As for NM aforementioned each concrete parts herein, for example duplexer, down-conversion device and means of upconversion, can according to each the second panel 2 can installing space, according to its with each module between be connected Discussing Convenience etc., be integrated into neatly on their central one or more second panels 2.
As previously mentioned, each functional module of RF processing unit be dispersed on a plurality of the second panels 2, carry out integrated, thereby, each second panel 2 at RF processing unit place must be coupled together, to guarantee the normal work of RF processing unit.For the convenience of subsequent descriptions, the back side that defines described the first panel 1 is installing space to the cylindrical space of downward-extension.RF processing unit of the present invention and baseband processing unit 31 are installed within the scope of this installing space.Described each second panel 2 is erect the back side that is installed in the first panel 1, each 2 of second panel parallels side by side to reserve at least one ventilation conduit (not label), and between described each second panel 2, by blindmate connector 5, realizing RF processing unit self is the electric connection between its each functional module.By blindmate connector 5, connect, can make the structure of whole active capping unit more compact and firm.Therefore, contribute to the volume of active capping unit to reduce and Highgrade integration.
By above assembled relation, can be found out, cooperating between RF processing unit and radiating doublet 10, has realized the effect of known Remote Radio Unit, can as a Remote Radio Unit, use separately.But, in the present invention, the floor space of the first panel 1 can be vacateed part installing space by the spacing of adjusting between the second panel 2, thereby, active capping unit of the present invention, further one or more the 3rd panels 3 of integrated baseband processing unit 31 on the first panel 1 bottom surface.
Baseband processing unit 31 of the present invention, the functional module of in base band level, signal of communication being processed, the communication interface standard of various standards is processed and realized to the physical layer signal that completes various standards, belong to the Core Feature that realize base station, radio frequency baseband unit (BBU), the common cooperating that is connected with Remote Radio Unit (RRU), its realization and operation principle are conventionally known to one of skill in the art.
In like manner, for described the 3rd panel 3 of integrated this baseband processing unit 31, the form with same with described the second panel 2, is placed within the scope of described installing space, described first panel 1 back side is fixed in setting, and between each second panel 2, forms parallel relation side by side.Thereby, between the 3rd panel 3 and the second panel 2, also formed ventilation conduit (not label).And in order to realize RF processing unit on the second panel 2 and the electric connection of the baseband processing unit 31 on the 3rd panel 3, further between the second panel 2 and the 3rd panel 3, by blindmate connector 5, realizing being connected between baseband processing unit 31 and RF processing unit.In addition,, for being connected between reinforced panel and panel, double-screw bolt 6 being further set between panel and panel and locking.
As can be seen here, by further setting up baseband processing unit 31, can make active capping unit of the present invention change femto cell into from Remote Radio Unit (RRU), or serve as multiple-input and multiple-output platform (MIMO) and use.Foot aobvious the present invention be with good expansibility.
As previously mentioned, interspace in advance and form ventilation conduit between each second panel 2, between the second panel 2 and the 3rd panel 3, also formed ventilation conduit, this measure can be played certain radiating effect.In order to force radiating effect, the present invention is also further for any one or more the second panels 2 arrange the ventilation hole (not shown) that connects himself, the ventilation hole that connects himself can also be set on the 3rd panel 3, object is that make between plate and plate can ventilating convection, further enhance heat effect.
Yet active capping unit is as a system, its heat dissipation design should comprehensively be carried out, only by ventilation conduit is set above, mode that ventilation hole is set fails to guarantee integral heat sink effect.Thereby the present invention arranges described heat sink 4(on a pair of opposite flank of described installing space also can only arrange one), with globality improve radiating effect, guarantee the normal work of active capping unit.
In like manner, described heat sink 4 is also fixed on described the first panel 1 bottom surface, and two heat sinks 4 also also comprise the 3rd panel 3 with described each second panel 2() parallel being arranged side by side.Described heat sink 4 has the front that a tabular back side and one is provided with a plurality of needle-like teeth 41, with its back side and described each second panel 2, erects abreast mutually the back side that is installed in described the first panel 1.For the radiating effect of maximum thermal part 4, described heat sink 4 is with its back side and the adjacent panel installation that fits with it.That is to say, according to each the second panel 2(and the 3rd panel 3) order side by side on the first panel 1 bottom surface, two heat sinks 4 fit tightly installation with its back side and the panel of the both sides of direction (may be that the second panel 2 may be also the 3rd panel 3) side by side respectively.
By above a series of comprehensive heat dissipation, can guarantee that whole active capping unit dispels the heat efficiently, thereby guarantee its long-time steady operation.
For the ease of active capping unit by external control, in described digital processing and interface module 23, be also provided with monitor-interface 230, it is connected to RF processing unit on the one hand to the classical insulation that comprises RF processing unit, radiating doublet 10 is provided, and the control unit default with (not shown) is connected on the other hand.This control unit is for obtaining the classical insulation of active capping unit by monitor-interface 230, and send instruction to active capping unit to change the phase place of the signal of communication export to described radiating doublet 10, thereby, when a plurality of active capping units are organized when battle array in the regularly arranged mode of matrix, the phase place that can control the signal of a plurality of active capping units by coordination removes to change the wave beam that whole active capping unit forms jointly.Obviously, the suitable outside that is placed in this active capping unit of this control unit.And for the ease of installing, this active capping unit bottom arranges a mounting bracket 7, by this mounting bracket 7, active capping unit can be installed on to multiple occasion, such as flat board, wall, smallpox etc.
Visible, active capping unit of the present invention has that volume is little, multifunction, can organize flexibly battle array, excellent in heat dissipation effect and steady performance.
Further incorporated by reference to Fig. 4, active covering array of the present invention is consisted of a plurality of aforesaid active capping unit being arranged on a backboard 8, the mode that described backboard 8 is arranged with matrix for described each active capping unit provides a plurality of installation sites 81, a plurality of described modes with matrix corresponding to active capping unit are arranged on described a plurality of installation site 81 regularly, also be described active capping units of each installation site 81 installing, described backboard 8 is provided with for realizing the communication interface circuit that is connected to access described signal of communication between each active capping unit and external communication network.
When a plurality of distributed active capping units are formed to active covering array, only need provide one with the backboard 8 of the installation site 81 of a plurality of blindmate plugs, then by each active capping unit by screw locking on backboard 8 on corresponding installation site 81.Backboard 8 is also with circuit such as optical fiber interface and simple monitoring, coupling, power supplys, connects and being connected of the blindmate connector 5 of each unit bottom, thereby realize the functions such as signal communication and power supply, coupling calibration by the blindmate connector 5 on backboard 8.Backboard 8 low cost of manufactures, can prepare not the backboard 8 of formation formula on the same group according to the needs of array, for example, have the backboard 8 of 2 * 8 installation sites 81, also can be prepared with the backboard 8 of 1 * 6 installation site 81.By multi-form backboard 8 and the combination of a plurality of active capping units, can obtain the active covering array of various ways.Array way is flexible, can adapt to different application demands.
As previously mentioned, each active capping unit can be external with one control unit be connected, thereby, in active covering array of the present invention, one control unit is set on backboard 8, for a plurality of active capping units of centralized control, can be both that this control unit is connected with the monitor-interface 230 of each active capping unit respectively, also can be the external control unit of monitor-interface 230 of each active capping unit, and then be connected respectively to a centralized control unit by these control units.Control unit described later, by refer in particular to can a plurality of active capping units of centralized control control unit.
According to the aforementioned announcement about active capping unit, the active capping unit formation Remote Radio Unit that both can only combine with radiating doublet 10 with RF processing unit, can form micro-base station by setting up baseband processing unit 31 again.As shown in Figure 5, for each active capping unit, load onto after baseband processing unit 31, this Distributed Active Antennas unit is equivalent to a base station, can be directly by network interface or light mouth and gateway, communicates; As shown in Figure 6, pull down the baseband processing unit 31 of each active capping unit, this unit is equivalent to a RRU, directly by network interface or light mouth 231, communicates with BBU.Visible, active capping unit of the present invention is flexible networking as required, realizes the Distributed coverage system of indoor and outdoors.
No matter be which kind of situation, all do not affect the realization of active covering array of the present invention.Active covering array of the present invention, can be used as MIMO or uses as a macro base station, also can carry out wave beam forming or realize smart antenna by region minute standard, and its networking mode is flexible.
In order to realize the Comprehensive Control to active covering array by described control unit, the present invention is by the adjacent position relation of each active capping unit in described matrix, this matrix is divided into a plurality of submatrixs, make each submatrix comprise one group of active capping unit, and the phase place of adjusting feed-in described signal of communication of the radiating doublet 10 of active capping unit described in each by this control unit is so that described each submatrix form respectively the wave beam that points to different spaces.For example, can make the formed beam position of submatrix A region A, the beam position region B of submatrix B, the beam position region C of submatrix C, the number of the active capping unit of three sub-matrix A, B, C can be identical, as be 2*3.
User can also input instruction as pre-conditioned for control unit, make described control unit according to this default condition, regulate the number of the active capping unit that each submatrix comprises, for example, can make the number of the active capping unit of submatrix A be adjusted into 2*2, the number of the active capping unit of submatrix B is adjusted into 2*4, the active capping unit of submatrix C is still 2*3, by such adjustment, can make the coverage of submatrix A diminish, the coverage of submatrix B increases, and the coverage of submatrix is constant.
Situation for multicarrier, user can also input instruction as pre-conditioned for control unit, make described control unit for controlling all active capping unit pack processing of submatrix described in each, be contained in specific in a plurality of carrier waves of described signal of communication, for example, make first carrier wave as the overlay network in certain A district, second carrier wave be as the overlay network in certain B district, and the 3rd carrier wave is as the overlay network in certain C district.
Situation about processing for the multiband of multiple types mixed transport, user can input instruction as pre-conditioned for control unit equally, makes described control unit for controlling all active capping unit pack processing of submatrix described in each, be contained in specific a kind of in the multiple types of described signal of communication.Particularly, the covering signal in A district, B district, C district can be a certain standard in GSM, CDMA, WCDMA, CDMA2000, TD-SCMDA, FDD-LTE, TDD-LTE respectively, can be also multiple types.For example A district is made as to GSM standard, B district is made as WCDMA standard, and C district is made as TD-SCDMA standard.An active covering array can be realized the covering of multiple types, has reduced the cost of building a station of different operators.
Visible, active covering array of the present invention, the group battle array that not only can realize base station mode can also realize the group battle array of Remote Radio Unit pattern.The frame mode of two kinds of group battle arrays roughly the same, only needs the baseband processing unit 31 of each active capping unit of dismounting to realize.Also can find out thus, active covering array of the present invention, networking mode is very flexible, and the function that can realize is also very abundant.And, be more than several situations in application mode, the present invention can meet other any combination configurations, comprises GSM, CDMA, WCDMA, TD-SCDMA, CDMA2000, FDD-LTE, TDD-LTE etc., and the active capping unit number of group battle array also can be selected flexibly.
In the present invention, a plurality of active capping units are installed in to the mode on same backboard 8, be similar to " plug and play ", be convenient to dilatation, the number that only need increase active capping unit can improve the power of whole active covering array, without increasing in addition macro base station, meets the data traffic sharply increasing again.Each active capping unit on array is actually and works alone, and the damage of some unit was lost efficacy and can not affected other unit and work on, and only need change the unit of inefficacy while safeguarding.Easy to maintenance, flexible, can not cause device waste, reduce maintenance cost.
In sum, the improvement of active capping unit of the present invention, in conjunction with its control mode flexibly, for the realization of macro base station and MIMO provides solution more flexibly.
In brief, above embodiment is only in order to illustrate the present invention and unrestricted technical scheme described in the invention; Therefore, although this specification has been described in detail the present invention with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can modify or be equal to replacement the present invention; And all do not depart from technical scheme and the improvement thereof of the spirit and scope of the present invention, it all should be encompassed in the middle of claim scope of the present invention.