CN105703817A - Spatial domain trap wave based co-location system of radio monitoring station and mobile communication base station - Google Patents
Spatial domain trap wave based co-location system of radio monitoring station and mobile communication base station Download PDFInfo
- Publication number
- CN105703817A CN105703817A CN201610214468.XA CN201610214468A CN105703817A CN 105703817 A CN105703817 A CN 105703817A CN 201610214468 A CN201610214468 A CN 201610214468A CN 105703817 A CN105703817 A CN 105703817A
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- Prior art keywords
- base station
- antenna
- mobile communication
- monitoring
- spatial domain
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
- H04B7/0825—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with main and with auxiliary or diversity antennas
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/109—Means associated with receiver for limiting or suppressing noise or interference by improving strong signal performance of the receiver when strong unwanted signals are present at the receiver input
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
- H04B7/0828—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with delay elements in antenna paths
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention relates to a field of base station antenna beamforming and provides a spatial domain trap wave based co-location system of a radio monitoring station and a mobile communication base station for solving a problem that a radio monitoring station which is co-located with a mobile communication base station is susceptible to interference from other base stations. The system includes an ultra-wide-band monitoring antenna, a directional inhibition auxiliary antenna, a phase position/time delay balancing network, an amplitude balancing network and a combiner. By adopting the technical scheme provided by the invention, interference on a monitoring antenna in a specific direction and at specific frequency band can be reduced effectively, monitoring capability of the monitoring antenna on base station frequency band in other directions is small, and wide azimuth angle monitoring capability of non-base station frequency band is not affected.
Description
Technical field
The invention belongs to antenna for base station beam synthesizing technology field, particularly to a kind of radio guard based on spatial domain trap and the co-located system in mobile communication base station。
Background technology
When having other base station signal strong jamming near the radio guard co-located with mobile communication, receiver non-linear distortion can be caused serious, frequency spectrum is formed more spurious signal, remote small and weak signal ability is declined。
Owing to omnidirectional's monitoring aerial does not have spatial domain trap characteristic, for above-mentioned technical barrier, there is no good solution both at home and abroad at present, it is generally adopted following two solution: the first adopts antenna output to connect wave trap, the base station frequency band signal that all directions are incident is all carried out bigger suppression by the method, to AF panel, but to other need to same frequency range base station signal also have equal suppression, run counter to monitoring original intention。It two is adopt directionality monitoring aerial, selects switch means measure in conjunction with time domain, can suitably weaken strong signal disturbing, but the real-time monitoring capability in its full spatial domain is deteriorated, it is difficult to realizes the monitoring of full spatial domain。
Summary of the invention
[solving the technical problem that]
It is an object of the invention to provide a kind of radio guard based on spatial domain trap and the co-located system in mobile communication base station, to solve the problem that the radio guard co-located with mobile communication is vulnerable to the interference of other base stations。
[technical scheme]
The present invention is achieved by the following technical solutions。
The present invention relates to a kind of radio guard based on spatial domain trap and the co-located system in mobile communication base station, including ultra broadband monitoring aerial, directed suppression auxiliary antenna, phase place/delay equalization network, amplitude equalization network and synthesizer, the input of described phase place/delay equalization network is connected with ultra broadband monitoring aerial, the outfan of described phase place/delay equalization network is connected with an input of synthesizer, the input of described amplitude equalization network suppresses auxiliary antenna to be connected with directed, and the outfan of described amplitude equalization network is connected with another input of synthesizer。
As one preferred embodiment, described ultra broadband monitoring aerial is broadband dipole antenna。
As another preferred embodiment, described ultra broadband monitoring aerial is logarithm antenna。
As another preferred embodiment, the bore of described directed suppression auxiliary antenna is more than 2 λ, and wherein λ is for receiving signal wavelength。
[beneficial effect]
The technical scheme that the present invention proposes has the advantages that
The present invention adopts omnidirectional's monitoring aerial as monitoring main antenna, realize the monitoring in wider orientation, adopt horizontal heavy caliber antenna for base station or antenna for base station battle array as auxiliary antenna, the strong jamming of base station near directional reception, in conjunction with level adjustment, phase place/delay equalization, realize the amplitudes such as two paths of signals, antiphase synthesis, thus realizing offseting this interference base station signal, effectively reduce monitoring aerial and receive the interference of this orientation, this frequency range, the ability that other direction of base station frequency band is monitored by monitoring aerial is impacted less, does not affect the wide azimuth monitoring capability of non-base station frequency band。
Accompanying drawing explanation
The theory diagram of the radio guard based on spatial domain trap that Fig. 1 provides for embodiments of the invention one and the co-located system in mobile communication base station。
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, the specific embodiment of the present invention will be carried out clear, complete description below。
Embodiment one
The theory diagram of the radio guard based on spatial domain trap that Fig. 1 provides for the embodiment of the present invention one and the co-located system in mobile communication base station。As shown in Figure 1, this system includes ultra broadband monitoring aerial, directed suppression auxiliary antenna, phase place/delay equalization network, amplitude equalization network and synthesizer, the input of phase place/delay equalization network is connected with ultra broadband monitoring aerial, the outfan of phase place/delay equalization network is connected with an input of synthesizer, the input of amplitude equalization network suppresses auxiliary antenna to be connected with directed, and the outfan of amplitude equalization network is connected with another input of synthesizer。
In the present embodiment, ultra broadband monitoring aerial can adopt wideband omnidirectional antenna (such as broadband dipole antenna) or moderate directivity antenna (such as logarithm antenna), it is achieved ultra broadband is comprehensive or wide-azimuth radio monitoring；The bore of directed suppression auxiliary antenna is more than 2 λ, and wherein λ is for receiving signal wavelength, and it is for the interference frequency domain of signal, spatial domain selection, directional reception interference signal。Synthesizer is for being adjusted amplitude and the phase place/time delay of two paths of signals, it is achieved interference cancellation。
The base station signal of interference base station transmitting antenna region (multiple antenna installation region) can be suppressed 15～25dB by the embodiment of the present invention, base station signal (with the interference same frequency range of the signal) monitoring capability in other direction beyond interference base station direction is significantly reduced (less than 3dB), the monitoring capability of other radio signal of non-base station frequency band is suitable with the monitoring aerial performance being used alone。
As can be seen from the above embodiments, the embodiment of the present invention adopts omnidirectional's monitoring aerial as monitoring main antenna, realize the monitoring in wider orientation, adopt horizontal heavy caliber antenna for base station or antenna for base station battle array as auxiliary antenna, the strong jamming of base station near directional reception, in conjunction with level adjustment, phase place/delay equalization, realize the amplitudes such as two paths of signals, antiphase synthesizes, thus realizing offseting this interference base station signal, effectively reduce monitoring aerial and receive this orientation, the interference of this frequency range, the ability that other direction of base station frequency band is monitored by monitoring aerial is impacted less, do not affect the wide azimuth monitoring capability of non-base station frequency band。
It is to be appreciated that embodiments described above is a part of embodiment of the present invention, rather than whole embodiment, neither limitation of the present invention。Based on embodiments of the invention, the every other embodiment that those of ordinary skill in the art obtain under not paying creative work premise, broadly fall into protection scope of the present invention。
Claims (4)
1. the radio guard based on spatial domain trap and the co-located system in mobile communication base station, it is characterized in that including ultra broadband monitoring aerial, directed suppression auxiliary antenna, phase place/delay equalization network, amplitude equalization network and synthesizer, the input of described phase place/delay equalization network is connected with ultra broadband monitoring aerial, the outfan of described phase place/delay equalization network is connected with an input of synthesizer, the input of described amplitude equalization network suppresses auxiliary antenna to be connected with directed, and the outfan of described amplitude equalization network is connected with another input of synthesizer。
2. the radio guard based on spatial domain trap according to claim 1 and the co-located system in mobile communication base station, it is characterised in that described ultra broadband monitoring aerial is broadband dipole antenna。
3. the radio guard based on spatial domain trap according to claim 1 and the co-located system in mobile communication base station, it is characterised in that described ultra broadband monitoring aerial is logarithm antenna。
4. the radio guard based on spatial domain trap according to claim 1 and the co-located system in mobile communication base station, it is characterised in that the bore of described directed suppression auxiliary antenna is more than 2 λ, and wherein λ is for receiving signal wavelength。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610214468.XA CN105703817A (en) | 2016-04-07 | 2016-04-07 | Spatial domain trap wave based co-location system of radio monitoring station and mobile communication base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610214468.XA CN105703817A (en) | 2016-04-07 | 2016-04-07 | Spatial domain trap wave based co-location system of radio monitoring station and mobile communication base station |
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| Publication Number | Publication Date |
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| CN105703817A true CN105703817A (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610214468.XA Pending CN105703817A (en) | 2016-04-07 | 2016-04-07 | Spatial domain trap wave based co-location system of radio monitoring station and mobile communication base station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510637A (en) * | 2018-12-25 | 2019-03-22 | 普联技术有限公司 | A kind of means for anti-jamming orienting AP |
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| CN104980203A (en) * | 2015-06-16 | 2015-10-14 | 山东大学 | Shared full-duplex large-scale antenna array and self-interference isolation and suppression method |
| CN205510047U (en) * | 2016-04-07 | 2016-08-24 | 成都华日通讯技术有限公司 | Radio monitoring station is total to location system with mobile communication basic station based on airspace trapped wave |
| EP3174216A1 (en) * | 2014-07-24 | 2017-05-31 | LG Electronics Inc. | Method and apparatus for transmitting feedback signals |
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| CN101267065A (en) * | 2007-03-13 | 2008-09-17 | 大唐移动通信设备有限公司 | Monopole directional antenna/array directional antenna and its time division duplex communication system |
| CN203166090U (en) * | 2013-03-04 | 2013-08-28 | 广州桑瑞通信设备有限公司 | Base station antenna capable of adjusting polarization direction |
| CN104168234A (en) * | 2013-05-16 | 2014-11-26 | 中兴通讯股份有限公司 | Signal cancelling method and apparatus of wireless communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109510637A (en) * | 2018-12-25 | 2019-03-22 | 普联技术有限公司 | A kind of means for anti-jamming orienting AP |
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