CN109660935A - A kind of interference positioning method of base station side array antenna system - Google Patents
A kind of interference positioning method of base station side array antenna system Download PDFInfo
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- CN109660935A CN109660935A CN201811428477.4A CN201811428477A CN109660935A CN 109660935 A CN109660935 A CN 109660935A CN 201811428477 A CN201811428477 A CN 201811428477A CN 109660935 A CN109660935 A CN 109660935A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
- H04B17/327—Received signal code power [RSCP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/345—Interference values
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of interference positioning methods of base station side array antenna system, it is sent by the data that base station and user are closed in timing, and interference information is received simultaneously, base station side interference radiating way is determined by DOA method, user is by received jamming power reporting base station, interference position region and power are calculated to receive interference information joint judgement according to base station and user, this method can effective position interference position region, and it does not need to increase additional test equipment, without manually being checked, it saves human and material resources, and it can effective position interference position region and transmission power；The method of the location interference position, algorithm complexity is low, the communication system suitable for base station side array antenna.
Description
Technical field
The present invention relates to the communications field more particularly to a kind of interference positioning methods of base station side array antenna system.
Background technique
The shared characteristic of wireless channel makes wireless network be easy to be netted the threat such as interior self-interference or different system interference.
In order to effectively cope with interference attack, domestic and international researcher is routed from physical layer communication mode, link layer scheduling strategy, network layer
Algorithm and application layer services Mass adjust- ment angularly propose the interference including channel level, link level and network level eliminate or
Bypassing method.From the point of view of comparison, it is less to eliminate interference threat study from source how to efficiently locate interference source.Currently,
Common interference source localization method is that investigation method is interfered at artificial upper station.The method be usually using directional aerial (yagi aerial, it is right
One number time antenna, planar directional antenna etc.) come measuring signal direction, while being equipped with high performance frequency spectrum detection device to detection
Signal wave shape is observed, once there is the long-term phenomenon of interference signal, tester will turn in measurement place
Dynamic antenna simultaneously orients.By measuring interference signal using directional aerial in several places, position of interference source can be substantially determined.People
Work investigation method has the following disadvantages, and (1) measuring process is cumbersome, inefficiency；(2) colocation site construction number of base stations is more, investigation
Project amount is big；(3) measuring signal is time varying signal, is influenced by occasional case, as a result there is error.
Summary of the invention
A kind of interference positioning side for small, high-efficient base station side array antenna system that the purpose of the present invention is to provide errors
Method.
To achieve the above object, the invention provides the following technical scheme: a kind of interference of base station side array antenna system is fixed
Position method, which comprises the steps of:
Step 1, reporting of user location information；
Step 2, base station and user's timing Stop message are sent, and only receive interference information；
Step 3, base station judge interference signal direction by DOA method；
Step 4, reporting of user received interference power；
Step 5, if it exists jamming power are not more than the user of base station jamming power, then randomly select such user,
And 6 are entered step, otherwise, the user that jamming power is greater than base station is randomly selected, enters step 7；
Step 6 receives user's jamming power, path loss model, base station selected by jamming power, step 5 according to base station
Estimate interference radiating way, combined calculation simultaneously determines interference position, exports and determine interference position region, calculate and enter step 8 after completing；
Step 7, selected user's jamming power are greater than base station jamming power；
Step 8 receives power and path loss model according to interference position, interference, calculates interference transmission power.
Further, the step 7 further includes following steps:
7a, user's jamming power selected by jamming power, step 5, path loss model, base station estimation are received according to base station
Interference radiating way, combined calculation interference position, at this time there are two the calculated results of interference position region；
A user is chosen in 7b, the user never chosen again, according to power and path loss model is received, to step 7a
Two interference position regions being calculated are verified, and are exported and are determined interference position region, if two area validations are correct,
Two users are then in addition chosen again to verify.
Compared with prior art, the beneficial effects of the present invention are: saving human and material resources without manually being checked, and
It can effective position interference position region and transmission power；The method of the location interference position, algorithm complexity is low, is suitable for base station
The communication system of side array antenna.
Detailed description of the invention
Fig. 1 is interference away from the schematic diagram in the nearlyr situation of user；
Fig. 2 is interference away from the schematic diagram in the nearlyr situation in base station；
Fig. 3 be Fig. 1 shows situation illustraton of model；
The illustraton of model for the situation that Fig. 4 bitmap 2 indicates；
Fig. 5 is flow diagram of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1-Fig. 5, present embodiment discloses a kind of interference positioning method of base station side array antenna system,
Interference system model is as shown in Figure 1, 2, and Fig. 1 is interference away from the nearlyr situation of user, and Fig. 2 is interference away from the nearlyr situation in base station.Assuming that
Base station side is array antenna, and base station and user's timing stop data and send, and carry out interference reception.The interference that user will receive
Information reporting is to base station, by handling to receiving interference, location interference.Whole system is by module 101, module 102, mould
Block 103 and module 104 form, and wherein module 101 is array antenna base station, and main function, which receives, to be interfered and estimate interference radiating way；
Module 102 is user terminal, refers generally to the equipment of user's sending and receiving data, such as mobile phone, notebook；Module 103 is interference, as
This programme needs position portion；Module 104 is wireless communication link, and main function is transmission wireless signal.Fig. 3,4 are respectively and figure
1 and 2 corresponding mathematical models.
As shown in figure 5, being base station side array antenna system interference positioning method flow chart, specifically comprise the following steps:
Step 1, reporting of user location information；
Step 2, base station and user's timing Stop message are sent, and only receive interference information, it is P that base station, which receives jamming power,B,
It is P that user m, which receives jamming power,m；
Step 3, base station are by DOA method estimated disturbance signal direction, as shown in BI ray in Fig. 3,4；
The power of the received interference of step 4, reporting of user；
Step 5, if it exists jamming power are not more than the user of base station jamming power, that is, there is user m, so that receiving interference
Power Pm≤PB, then such user is randomly selected, and enter step 6, otherwise, randomly selects jamming power greater than base station
User m, enters step 7；
Step 6 establishes coordinate system with plane where base station and user, and the position user m is point Um, base station position
For point B, as shown in Figure 3.Jamming power P is received according to base stationB, user's m jamming power P selected by step 5m, path loss mould
Type, base station estimate interference radiating way, and combined calculation simultaneously determines interference position, and detailed process is as follows:
It selects different path loss models according to varying environment, selects Hata-Okumura model herein, then:
PT-Pm=69.55+26.16lgf-13.82lght- α (hm)+(44.9-6.55lght) * lgdm (1)
PT-PB=69.55+26.16lgf-13.82lght- α (hB)+(44.9-6.55lght) * lgdB (2)
Wherein: PTTo interfere transmission power；
F is interference signal frequency；
Ht is interference antenna effective height (m)；
Hm is user antenna effective height (m)；
dBFor the distance between interference and base station (km)；
α is receiving antenna height factors；
(1) formula subtracts (2) formula and arranges:
Bring ht=30m and ht=200m into above formula respectively, can must interfere height 30 between 200m when user to do
Disturbing distance must be worth with base station to interference distance ratio λ, and:
As λ=1, according to mathematical knowledge it is found that interference is located on user and base station perpendicular bisector, it is with ray BI intersection point
Position is interfered, interference position can be uniquely determined at this time；
As λ > 1, according to mathematical knowledge it is found that the track of the constant point of two fixed point distance ratios to justify, locus circle position
In right side, as shown in figure 3, two circles respectively indicate interference height in two limiting value situations, interfere position be ray BI with
Dash area region is obtained between two circle point of intersection, interference position region can be uniquely determined at this time；
It calculates and enters step 8 after completing；
Step 7, selected user's jamming power are greater than base station jamming power, then need that following two step is divided to carry out
7a, coordinate system is established with plane where base station and user, the position user m is point Um, base station position is
Point B, as shown in Figure 4.According to user's jamming power, path loss model, base station selected by base station reception jamming power, step 5
Estimate interference radiating way, combined calculation interference position.
It is identical as step 6 at this time, user can be obtained to interference distance and base station to interference distance ratio λ according to path loss model
And:
According to mathematical knowledge it is found that the track of the constant point of two fixed point distance ratios to justify,
As λ < 1, locus circle is located at left side, as shown in Figure 4.Two circles respectively indicate interference height where two limiting value situations, interference
Position is to obtain dash area region between the circle point of intersection of ray BI and two to cannot exclude mistake since two regions are ipsilateral in base station
It accidentally interferes, needs further to verify at this time；
A user n is chosen in 7b, the user never chosen again, according to power and path loss model is received, to step
Two interference position regions that 7a is calculated are verified, so that it is determined that correctly interference position region.If verification step
Two region 7a is correct, illustrates that two users are symmetrical about base station interference line, need to re-execute the steps 7b；
Step 8 receives power and path loss model, estimation interference transmission power according to interference position, interference.
The present invention can be positioned automatically by system or manual operation, without manually being checked, saves
Manpower and material resources, and be directed to using base station side as the system of array antenna, it can the effective location interference band of position and transmitting function
Rate；The received interference information of interference information combination user terminal is received using base station, carries out location interference position, algorithm complexity
It is low, suitable for the communication system of base station side array antenna, and do not need additional test equipment.
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art,
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of invention.
Claims (2)
1. a kind of interference positioning method of base station side array antenna system, which comprises the steps of:
Step 1, reporting of user location information；
Step 2, base station and user's timing Stop message are sent, and only receive interference information；
Step 3, base station judge interference signal direction by DOA method；
Step 4, reporting of user received interference power；
Step 5, if it exists jamming power are not more than the user of base station jamming power, then randomly select such user, go forward side by side
Enter step 6, otherwise, randomly selects the user that jamming power is greater than base station, enter step 7；
Step 6 receives user's jamming power selected by jamming power, step 5, path loss model, base station judgement according to base station
Interference radiating way, combined calculation simultaneously determine interference position, export and determine interference position region, calculate and enter step 8 after completing；
Step 7 chooses user's jamming power greater than base station jamming power；
Step 8 receives power and path loss model according to interference position, interference, calculates interference transmission power.
2. a kind of interference positioning method of base station side array antenna system according to claim 1, which is characterized in that described
Step 7 further includes following steps:
7a, user's jamming power selected by jamming power, step 5, path loss model, base station estimation interference are received according to base station
Direction, combined calculation interference position, at this time there are two the calculated results of interference position region；
A user is chosen in 7b, the user never chosen again, according to power and path loss model is received, step 7a is counted
Two obtained interference position regions are verified, and are exported and are determined that interference position region weighs if two area validations are correct
Two users of new in addition selection verify.
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| CN201811428477.4A CN109660935B (en) | 2018-11-27 | 2018-11-27 | Interference positioning method for base station side array antenna system |
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| CN201811428477.4A CN109660935B (en) | 2018-11-27 | 2018-11-27 | Interference positioning method for base station side array antenna system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4307729A1 (en) | 2022-07-13 | 2024-01-17 | Volkswagen Ag | Method for a network entity for controlling a communication, method for a first communication device, method for a second communication device, apparatus, vehicle and computer program |
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Effective date of registration: 20210520 Address after: 226000 11 / F, building 4, 58 Chongchuan Road, Chongchuan District, Nantong City, Jiangsu Province Patentee after: NANTONG RESEARCH INSTITUTE FOR ADVANCED COMMUNICATION TECHNOLOGIES Co.,Ltd. Address before: 226000 11 / F, building 4, 58 Chongchuan Road, Chongchuan District, Nantong City, Jiangsu Province Patentee before: NANTONG RESEARCH INSTITUTE FOR ADVANCED COMMUNICATION TECHNOLOGIES Co.,Ltd. Patentee before: NANTONG University |