CN105515621A - Multi-frequency-band multi-antenna base station device and multi-frequency-band frequency conversion method - Google Patents
Multi-frequency-band multi-antenna base station device and multi-frequency-band frequency conversion method Download PDFInfo
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- CN105515621A CN105515621A CN201410497546.2A CN201410497546A CN105515621A CN 105515621 A CN105515621 A CN 105515621A CN 201410497546 A CN201410497546 A CN 201410497546A CN 105515621 A CN105515621 A CN 105515621A
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- power amplifier
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Abstract
The invention provides a multi-frequency-band multi-antenna base station device. The device comprises a drive device and a driven device. The drive device is responsible for optical port communication and digital intermediate frequency processing. The drive device comprises a drive plate unit, a power amplifier, a cavity filter, a plurality of antennas and a calibration port. The driven device is responsible for digital intermediate frequency processing. The driven device comprises a driven plate unit, a power amplifier, a cavity filter, a plurality of antennas and a calibration port. The drive plate unit and the driven plate unit transmit power, data and control signal to each other through a connecting line. Each of the drive plate unit and the driven plate unit comprises a wideband modulator, a wideband mixer and a wideband local oscillator generator. In an uplink path, a local oscillation frequency is adjusted, and radio frequency signals in different frequency bands are subjected to simulation down-conversion into an intermediate frequency by the wideband mixer. In a downlink path, the intermediate frequency signal is subjected to simulation up-conversion into different radio frequency bands by the wideband modulator. The invention also discloses a multi-frequency-band frequency conversion method. The base station device and the frequency conversion method can be used to improve the system frequency band changing flexibility and reduce the system cost.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to multiband multi-antenna base station device and multiband conversion method.
Background technology
Along with the development of the communication technology, broadband, High Linear, high efficiency multi-antenna base station realize becoming industry main trend, due to the Bandwidth-Constrained of power amplifier, tradition multi-antenna base station is generally single frequency band product, different base station models is relied on to support the application of other frequency ranges, can cause the increase of products-hardware cost like this, flexibility is not high.
Summary of the invention
In order to overcome the defect of prior art, the present invention proposes a kind of multiband multi-antenna base station device, this device comprises main device and from device, described main device is responsible for light port communications and Digital IF Processing, comprise board unit, power amplifier, cavity body filter, multiple antenna and calibration port, said slave device is responsible for Digital IF Processing, comprises from Slab element, power amplifier, cavity body filter, multiple antenna and calibration port; Described board unit and describedly mutually transmit power supply, data and control signal from Slab element by connecting line;
Wherein, described board unit and describedly include wideband modulator, wideband mixer and wideband local oscillator generator from Slab element, the local frequency of wideband local oscillator generator is regulated at uplink, by wideband mixer by the radiofrequency signal analog down of different frequency range to intermediate frequency, regulate the local frequency of wideband local oscillator generator at downlink, by wideband modulator, intermediate-freuqncy signal simulation is upconverted to different radio frequency bands.
Preferably, described board unit is identical with the described local frequency from Slab element.
Preferably, described board unit is different with the described local frequency from Slab element.
Preferably, described device is multiband 8 antenna base station device, wherein, and main device and be 4 antenna assemblies from device.
Preferably, main device and use two casings from device, adopts make-up hard connecting mode between casing.
Preferably, Operation and Maintenance window is positioned at the side of described board unit.
The invention allows for a kind of conversion method of said apparatus, the method comprises: when carrying out the Up/Down Conversion of the radiofrequency signal of different frequency range, master and slave device does not change master and slave Slab element, only regulate the local frequency of wideband local oscillator generator, former power amplifier and cavity body filter are replaced with the power amplifier corresponding with frequency range and cavity body filter simultaneously.
Invention enhances the flexibility that system frequency range is changed, save system cost, concrete advantage is: 1, base station uses wideband mixer, wideband modulator and wideband local oscillator, without the need to changing master/slave board, only need change power amplifier and cavity body filter, the Up/Down Conversion of multi-band signal can be realized.2, master/slave board only need revise self local frequency frequency needed for corresponding frequency, changes power board and the cavity body filter of corresponding frequency simultaneously respectively, can realize alien frequencies and load in mixture base station.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the base station overall framework figure of the embodiment of the present invention 1;
Fig. 2 is the structured flowchart of the master/slave board of the embodiment of the present invention 2.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments; It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1: multiband 8 antenna base station device
As shown in Figure 1, this base station is 8 antenna product to the overall framework of the present embodiment base station, comprises main device and from device.Main device is responsible for light port communications and Digital IF Processing, comprise mainboard, power amplifier (power amplifier), cavity body filter, 4 antennas and calibration port, be responsible for Digital IF Processing from device, comprise from plate, power amplifier, cavity body filter, 4 antennas and calibration port.Mainboard and comprise power supply, FPGA high speed data lines and other control lines etc. from the Hard link signal between plate.Master/slave board is connected by keyset or wire jumper with power amplifier, and power amplifier is by carrying out input and output after cavity body filter.Master and slave devices adopts the connection of two casings, adopts make-up hard connecting mode between casing, and Operation and Maintenance window is positioned at the side of mainboard.
As shown in Figure 2, master/slave board respectively has a slice FPGA to the structure of the master/slave board of the present embodiment, and principal and subordinate FPGA is process master/slave board signal separately.Mainboard side FPGA be responsible for light mouth, mainboard side control signal, mainboard side 4 antenna Digital IF Processing and with the communication from plate, be responsible for from plate side control signal, from the Digital IF Processing of plate side 4 antenna and the communication with mainboard from plate side FPGA.Master/slave board respectively has a slice wideband local oscillator, and small-signal part uses wideband mixer, wideband modulator and wideband local oscillator, by regulating local frequency, realizes the Up/Down Conversion of different frequency range signal.By regulating local frequency in uplink, by wideband mixer the radiofrequency signal analog down of different frequency range to intermediate frequency, by regulating local frequency in downlink, by wideband modulator, intermediate-freuqncy signal is simulated up-conversion signal to different radio frequency bands.
Suppose that master/slave board can realize the signal transmitting and receiving of 1GHz to 3GHz, namely in 1GHz to 3GHz scope, all can carry out transmitting-receiving process to signal, unified intermediate frequency is IF.The base station system of f1 frequency range that what the present embodiment master/slave board all realized is, then master/slave board local oscillator adopts identical frequency, and local frequency is f1+/-IF, and the master/slave board power amplifier that all adopts f1 frequency range corresponding and cavity body filter.
If master/slave board will realize the base station system of other f2 frequency ranges, then master/slave board hardware is not changed, and the local frequency that only need adjust master/slave board is f2+/-IF, and master/slave board side is replaced by the power amplifier corresponding with f2 frequency range and cavity body filter simultaneously.
Embodiment 2:4+4 antenna alien frequencies loads in mixture base station apparatus
Load in mixture base station for 4+4 antenna alien frequencies, still as shown in Figure 1, the structure of its master/slave board still as shown in Figure 2 for its overall framework.Mainboard side FPGA be responsible for equally light mouth, mainboard side control signal, mainboard side 4 antenna digital intermediate frequency process and with the communication from plate, be responsible for from plate side control signal, communicate from plate side 4 antenna digital intermediate frequency process and from plate side from plate side FPGA.Master/slave board respectively has a slice wideband local oscillator, and principal and subordinate FPGA is process master/slave board signal separately.When alien frequencies realizes, master/slave board hardware is not changed, the local frequency of master/slave board specifically needs the different radio frequency frequency realized to feed corresponding local frequency according to IF-FRE and master/slave board, be replaced by the power amplifier of respective frequencies and external cavity body filter in master/slave board side simultaneously, just can realize 4 passage base station systems of two alien frequencies.
The present embodiment hypothesis master and slave devices will realize the base station system of f1 and f2 two frequency ranges, and f1 frequency range power amplifier is at mainboard side, and f2 frequency range power amplifier is from plate side (position can exchange).Then adjust master/slave board local frequency, mainboard side f1 frequency range local oscillator is f1+/-IF, be f2+/-IF from plate side f2 frequency range local oscillator, change power amplifier and the cavity body filter of master/slave board simultaneously, the power amplifier that mainboard side uses f1 frequency range corresponding and cavity body filter, the power amplifier using f2 frequency range corresponding from plate side and cavity body filter, power amplifier and other parameter indexs of cavity are determined according to system requirements.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (9)
1. a multiband multi-antenna base station device, is characterized in that:
Described device comprises main device and from device, described main device is responsible for light port communications and Digital IF Processing, comprise board unit, power amplifier, cavity body filter, multiple antenna and calibration port, said slave device is responsible for Digital IF Processing, comprises from Slab element, power amplifier, cavity body filter, multiple antenna and calibration port; Described board unit and describedly mutually transmit power supply, data and control signal from Slab element by connecting line;
Wherein, described board unit and describedly include wideband modulator, wideband mixer and wideband local oscillator generator from Slab element, the local frequency of wideband local oscillator generator is regulated at uplink, by wideband mixer by the radiofrequency signal analog down of different frequency range to intermediate frequency, regulate the local frequency of wideband local oscillator generator at downlink, by wideband modulator, intermediate-freuqncy signal simulation is upconverted to different radio frequency bands.
2. device according to claim 1, is characterized in that: described board unit is identical with the described local frequency from Slab element.
3. device according to claim 1, is characterized in that: described board unit is different with the described local frequency from Slab element.
4. the device according to claims 1 to 3 any one, is characterized in that: described device is multiband 8 antenna base station device, wherein, and main device and be 4 antenna assemblies from device.
5. the device according to claims 1 to 3 any one, is characterized in that: main device and use two casings from device, adopts make-up hard connecting mode between casing.
6. the method according to claims 1 to 3 any one, is characterized in that: Operation and Maintenance window is positioned at the side of described board unit.
7. the multiband conversion method of device described in a claim 1, it is characterized in that, described method comprises: when carrying out the Up/Down Conversion of the radiofrequency signal of different frequency range, master and slave device does not change master and slave Slab element, only regulate the local frequency of wideband local oscillator generator, former power amplifier and cavity body filter are replaced with the power amplifier corresponding with frequency range and cavity body filter simultaneously.
8. method according to claim 7, is characterized in that: described board unit is identical with the described local frequency from Slab element.
9. method according to claim 7, is characterized in that: described board unit is different with the described local frequency from Slab element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410497546.2A CN105515621B (en) | 2014-09-25 | 2014-09-25 | Multiband multi-antenna base station device and multiband conversion method |
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| CN201410497546.2A CN105515621B (en) | 2014-09-25 | 2014-09-25 | Multiband multi-antenna base station device and multiband conversion method |
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| CN105515621B CN105515621B (en) | 2018-12-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107708129A (en) * | 2017-10-17 | 2018-02-16 | 国网新疆电力公司昌吉供电公司 | A kind of method and system of electric power wireless private network mixed networking |
| CN110323563A (en) * | 2019-04-30 | 2019-10-11 | 深圳市大富科技股份有限公司 | A kind of active antenna element and antenna element for base station |
| CN110729969A (en) * | 2019-10-22 | 2020-01-24 | 北京航天广通科技有限公司分公司 | Frequency conversion assembly |
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| US20100130148A1 (en) * | 2008-11-27 | 2010-05-27 | Sony Corporation | Tuner module |
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| CN204145496U (en) * | 2014-09-25 | 2015-02-04 | 北京信威通信技术股份有限公司 | A kind of multiband multi-antenna base station device |
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- 2014-09-25 CN CN201410497546.2A patent/CN105515621B/en not_active Expired - Fee Related
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| CN1780158A (en) * | 2004-11-17 | 2006-05-31 | 华为技术有限公司 | 2-carrier receiving module and multiple-carrier base station receiver |
| US20100130148A1 (en) * | 2008-11-27 | 2010-05-27 | Sony Corporation | Tuner module |
| CN101534141A (en) * | 2009-04-15 | 2009-09-16 | 华为技术有限公司 | A method and device supporting the coexistence of multiband of radio-frequency module |
| CN101877917A (en) * | 2009-04-28 | 2010-11-03 | 大唐移动通信设备有限公司 | Remote radio unit |
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| CN107708129A (en) * | 2017-10-17 | 2018-02-16 | 国网新疆电力公司昌吉供电公司 | A kind of method and system of electric power wireless private network mixed networking |
| CN110323563A (en) * | 2019-04-30 | 2019-10-11 | 深圳市大富科技股份有限公司 | A kind of active antenna element and antenna element for base station |
| CN110729969A (en) * | 2019-10-22 | 2020-01-24 | 北京航天广通科技有限公司分公司 | Frequency conversion assembly |
| CN110729969B (en) * | 2019-10-22 | 2023-08-29 | 北京航天广通科技有限公司分公司 | Frequency conversion assembly |
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| CN105515621B (en) | 2018-12-04 |
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