CN108260157A - Reduce the method and device of adjacent area interference - Google Patents
Reduce the method and device of adjacent area interference Download PDFInfo
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- CN108260157A CN108260157A CN201611235999.3A CN201611235999A CN108260157A CN 108260157 A CN108260157 A CN 108260157A CN 201611235999 A CN201611235999 A CN 201611235999A CN 108260157 A CN108260157 A CN 108260157A
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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
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
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- Computer Networks & Wireless Communication (AREA)
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- Mobile Radio Communication Systems (AREA)
Abstract
The present invention relates to a kind of method and device for reducing adjacent area interference, wherein, the method includes：Detection ensures whether user enters current area；If detection knows that the guarantee user enters the current area, disturbed condition parameter of surrounding's adjacent cell to the current area of the current area is detected；According to the disturbed condition parameter of detection, interference of the surrounding adjacent cell to the current area is reduced.The method and device for reducing adjacent area interference of the present invention, it can realize according to whether guarantee user enters cell, trigger the CRS parameters of corresponding actions adjustment surrounding adjacent cell, each cell, which actually enters, ensures that the time is relatively short, existing net is influenced minimum, manual intervention can be greatly reduced, save operation cost.
Description
Technical field
The present invention relates to communication service technology field more particularly to a kind of method and devices for reducing adjacent area interference.
Background technology
Now in net scene, a part of region of certain city grid route has that overlapping coverage is high or wireless environment is complicated
Region, neighboring interval interference is big, can not be solved in a short time by prioritization scheme.Ensure user (including seine user, VIP user etc.
High-priority users) it is that it is poor that user perceives by these regions, it needs to ensure test.
Specifically, network optimization personnel to above-mentioned zone after excessive wheel optimization, it is familiar to current radio environment,
Before guarantee, evaded temporarily as a result, closing or reducing a part of cell CRS power in advance according to routine optimization, reduce cell weight
Superimposition cover degree reduces inter-cell interference, ensures that user perceives so as to be promoted, after guarantee, then restores cell CRS power manually
(referring to Fig. 1).
However, adjacent area interference method is reduced using artificial, due to wireless environment real-time change, if newest excellent without the same day
Change result, it is easy to which generation leads to the whole adjacent area CRS power parameters of mistuning, and network optimization operation cost is high.Furthermore, it is desirable to it ensures
When, when ensureing that user does not also enter cell, need to reduce peripheral cell CRS parameters and related confirmation work in advance, in advance into
Enter the conditions of support；User is ensured when leaving cell, system can not automatic decision, it is impossible to restore parameter in time, cause to ensure the time
It is long, it is bigger to ordinary user's sensation influence, easily cause complaint.
Invention content
Network optimization operation cost height existing for the interference method of adjacent area is reduced using artificial for existing, ensures time mistake
It is long, it is bigger to ordinary user's sensation influence the defects of, the following technical solutions are proposed by the present invention：
One aspect of the present invention provides a kind of method for reducing adjacent area interference, including：
Detection ensures whether user enters current area；
If detection knows that the guarantee user enters the current area, surrounding's adjacent cell of the current area is detected
To the disturbed condition parameter of the current area；
According to the disturbed condition parameter of detection, interference of the surrounding adjacent cell to the current area is reduced.
Optionally, the detection ensures whether user enters current area, including：
It detects in the current area with the presence or absence of the international mobile subscriber identity IMSI for ensureing user；
If detection knows that there are the IMSI for ensureing user in the current area, it is determined that the guarantee user enters
The current area.
Optionally, surrounding's adjacent cell of the detection current area is to the disturbed condition parameter of the current area,
Including：
Detect the surrounding adjacent cell and the difference of the Reference Signal Received Power RSRP of the current area.
Optionally, the disturbed condition parameter according to detection reduces the surrounding adjacent cell to described current small
The interference in area, including：
If detection knows that the quantity for the surrounding's adjacent cell for meeting preset condition is more than preset value, it is default to reduce all satisfactions
The cell reference signals CRS power of surrounding's adjacent cell of condition；Wherein, the preset condition includes and the current area
The difference of RSRP is less than surrounding's adjacent cell of predetermined threshold value.
Optionally, the method further includes：
It is reducing around described in the CRS power process of adjacent cell, for the guarantee user setting CRS in adjacent cell around this
Power default bias amount, to ensure that the guarantee user around this in adjacent cell is not influenced by CRS power drops.
Optionally, the cell reference signals CRS power for reducing all surrounding's adjacent cells for meeting preset condition, packet
It includes：
The X2 message between message or station into the surrounding's adjacent cell transfer station for meeting preset condition, to ask the satisfaction
The base station of surrounding's adjacent cell of preset condition reduces CRS power.
Optionally, the method further includes：
Detect whether the guarantee user has left the current area；
If detection knows that the guarantee user has left the current area, the reduction surrounding adjacent cell is cancelled
Operation to the interference of the current area.
On the other hand, the present invention also provides it is a kind of reduce adjacent area interference device, including：
Into state detection unit, ensure whether user enters current area for detecting；
Disturbed condition detection unit, for when detection knows that the guarantee user enters the current area, detecting institute
State disturbed condition parameter of surrounding's adjacent cell to the current area of current area；
Adjacent area interference reduces unit, for the disturbed condition parameter according to detection, reduces the surrounding adjacent cell pair
The interference of the current area.
Optionally, it is described to enter state detection unit, it whether there is the guarantor in the current area specifically for detecting
Hinder the international mobile subscriber identity IMSI of user；And when detection knows that there are the guarantee users in the current area
IMSI when, determine it is described guarantee user enter the current area.
Optionally, the disturbed condition detection unit, specifically for detecting the surrounding adjacent cell and the current area
Reference Signal Received Power RSRP difference.
The method and device for reducing adjacent area interference of the present invention ensures whether user enters current area by detection, and
When detection knows that the guarantee user enters the current area, the surrounding's adjacent cell for detecting the current area is worked as to described
The disturbed condition parameter of preceding cell with the disturbed condition parameter according to detection, reduces the surrounding adjacent cell and works as to described
The interference of preceding cell can realize that triggering corresponding actions adjust the CRS of surrounding adjacent cell according to ensureing whether user enters cell
Parameter, each cell, which actually enters, ensures that the time is relatively short, minimum on the influence of existing net, can greatly reduce manual intervention, save
About operation cost.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the flow diagram of artificial reduction adjacent area interference method of the prior art；
Fig. 2 is the flow diagram of the method for reducing adjacent area interference of one embodiment of the invention；
Fig. 3 is the flow diagram of the method for reducing adjacent area interference of another embodiment of the present invention；
Fig. 4 is the structure diagram of the device for reducing adjacent area interference of one embodiment of the invention.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is explicitly described, it is clear that described embodiment be the present invention
Part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
All other embodiments obtained under the premise of creative work are made, shall fall within the protection scope of the present invention.
Fig. 2 is the flow diagram of the method for reducing adjacent area interference of one embodiment of the invention；As shown in Fig. 2, the party
Method includes：
S1：Detection ensures whether user enters current area；
Specifically, the corresponding base station in the current area is detected in the current area and ensures user's with the presence or absence of described
International mobile subscriber identity IMSI；
If the base station detection knows that there are the IMSI for ensureing user in the current area, it is determined that the guarantee
User enters the current area.
S2：If detection knows that the guarantee user enters the current area, detect adjacent around the current area
Cell is to the disturbed condition parameter of the current area；
Specifically, if the base station is detected and knows that the guarantee user enters the current area, detection is described to work as
Surrounding's adjacent cell of preceding cell is to the disturbed condition parameter of the current area.
Further, as a kind of optional embodiment of the present embodiment, the current area is detected in step S1
Surrounding adjacent cell can include the disturbed condition parameter of the current area：
S21：Detect the surrounding adjacent cell and the difference of the Reference Signal Received Power RSRP of the current area.
S3：According to the disturbed condition parameter of detection, interference of the surrounding adjacent cell to the current area is reduced.
Specifically, the base station reduces the surrounding adjacent cell and works as to described according to the disturbed condition parameter of detection
The interference of preceding cell.
Further, as a kind of optional embodiment of the present embodiment, described in step S3 according to detection
Disturbed condition parameter reduces interference of the surrounding adjacent cell to the current area, can also include：
S31：If detection knows that the quantity for the surrounding's adjacent cell for meeting preset condition is more than preset value, all satisfactions are reduced
The cell reference signals CRS power of surrounding's adjacent cell of preset condition；Wherein, the preset condition includes and the current area
RSRP difference be less than predetermined threshold value surrounding's adjacent cell.
Specifically, if the base station is detected and knows that the quantity for the surrounding's adjacent cell for meeting preset condition is more than preset value
(being, for example, 3) then reduces the cell reference signals CRS power of all surrounding's adjacent cells for meeting preset condition.
The method and device for reducing adjacent area interference of the present invention ensures whether user enters current area by detection, and
When detection knows that the guarantee user enters the current area, the surrounding's adjacent cell for detecting the current area is worked as to described
The disturbed condition parameter of preceding cell with the disturbed condition parameter according to detection, reduces the surrounding adjacent cell and works as to described
The interference of preceding cell can realize that triggering corresponding actions adjust the CRS of surrounding adjacent cell according to ensureing whether user enters cell
Parameter, each cell, which actually enters, ensures that the time is relatively short, minimum on the influence of existing net, can greatly reduce manual intervention, save
About operation cost.
Further, as a kind of optional embodiment of above method embodiment, the method can also include：
It is reducing around described in the CRS power process of adjacent cell, for the guarantee user setting CRS in adjacent cell around this
Power default bias amount, to ensure that the guarantee user around this in adjacent cell is not influenced by CRS power drops.
Specifically, it is reducing around described in the CRS power process of adjacent cell, by gateway in adjacent cell around this
Guarantee user setting CRS power default bias amounts, to ensure the guarantee user around this in adjacent cell not by CRS power drops
Influence.
Further, it as a kind of optional embodiment of above method embodiment, is reduced described in step S31 all
Meet the cell reference signals CRS power of surrounding's adjacent cell of preset condition, can include：
The X2 message between message or station into the surrounding's adjacent cell transfer station for meeting preset condition, to ask the satisfaction
The base station of surrounding's adjacent cell of preset condition reduces CRS power.
Further, as a kind of optional embodiment of above method embodiment, the method can also include：
S4：Detect whether the guarantee user has left the current area；
Specifically, the base station is detected in the current area with the presence or absence of the IMSI for ensureing user；
If the base station detection knows that there is no the IMSI for ensureing user in the current area, it is determined that the guarantor
Barrier user has left the current area.
S5：If detection knows that the guarantee user has left the current area, it is adjacent to cancel the reduction surrounding
Operation of the cell to the interference of the current area.
The present invention is illustrated, but do not limit protection scope of the present invention with a specific embodiment below.
Fig. 3 is the flow diagram of the method for reducing adjacent area interference of another embodiment of the present invention.Generally speaking, this reality
The method for applying the reduction adjacent area interference of example can be based on webmaster and base station side is realized, can realize adaptive reduction adjacent area
Interference.Specifically, when detection, which is known, ensures that user enters current area, system detects adjacent around the current area automatically
The disturbed condition of cell；For meeting the adjacent cell of preset condition, automatic trigger reduces the CRS power of the adjacent cell, to reduce
The adjacent cell ensures that user rate perceives to the interference for ensureing user so as to be promoted；And when detection know ensure user from
When opening current area, the system performs the operation for restoring adjacent cell CRS power automatically.
It is understood that base station side, which is based on IMSI identifications, ensures the into/out current area of user, if the IMSI is not
In current area, it may be considered that the target user does not enter current area (not needing to ensure).
Specifically, the method for this implementation includes：
B1：Following dependent threshold is set by network management system：
(1) by timer, the RSRP of periodical common frequency measurement current area and surrounding adjacent cell；
It is understood that may be static in view of user, as long as meet the adjacent cell of following preset conditions, by it
CRS power declines 3dB within each period.In addition, in order to avoid CRS power is lowered always, it can set downward is accumulative not surpass
Cross 12dB (can be self-defined).
(2) preset condition is set：It can be according to pre-defined overlapping coverage rate, by the signal strength phase with current area
Quantity of the difference less than 6dB is more than the adjacent cell of N number of (being, for example, 3) as the object for being adjusted CRS power；
(3) setting adjustment thresholding：For example, -3dB will meet the CRS power of the adjacent cell of the preset condition, every
Decline 3dB in a predetermined period；
(4) preset offset value that user is ensured in adjacent cell is set：For ensureing the configuration offset of user's handover measurement (as increased
Add 3dB), it is therefore an objective to ensure that guarantee user's switching point in adjacent cell is not affected, i.e., surveyed to the adjacent area switching for reducing power
The preset offset value is configured in amount；
It is understood that the preset offset value is for user's (including ensureing user) rather than cell, by setting
Preset offset value is stated, is not changed with ensureing to ensure that user switches band relationship, even if declining CRS to ensureing that user does not have shadow
It rings.
B2：Ensure that user enters current area, base station side is to all cells of user configuration periodicity common frequency measurement
RSRP；
B3：Base station carries out comparison judgement, and select to meet item by terminal report measurement results with the above-mentioned thresholding of setting
The TOP adjacent areas (sorting according to adjacent area RSRP, select adjacent area) of part, by X2 message transmissions between message in station or station, ask adjacent area
Base station reduce CRS power；
B4：After the base station of related adjacent area receives request, automatic trigger declines CRS power, reduces inter-cell interference, ensures and uses
Family, which perceives, to be promoted；
B5：It ensures that user leaves current area, triggers more than adjacent area immediately and restore CRS power.
Fig. 4 is the structure diagram of the device for reducing adjacent area interference of one embodiment of the invention, as shown in figure 4, the dress
Put reduces unit 30 including entering state detection unit 10, disturbed condition detection unit 20 and adjacent area interference, wherein：
Ensure whether user enters current area into state detection unit 10 for detecting；
Disturbed condition detection unit 20 is used to, when detection knows that the guarantee user enters the current area, detect institute
State disturbed condition parameter of surrounding's adjacent cell to the current area of current area；
Adjacent area interference reduces unit 30 for the disturbed condition parameter according to detection, reduces the surrounding adjacent cell pair
The interference of the current area.
Specifically, the workflow of described device includes：It is detected into state detection unit 10 and ensures whether user enters
Current area；Disturbed condition detection unit 20 is when detection knows that the guarantee user enters the current area, described in detection
Surrounding's adjacent cell of current area is to the disturbed condition parameter of the current area；Adjacent area interference reduces unit 30 according to detection
The disturbed condition parameter reduces interference of the surrounding adjacent cell to the current area.
Device described in the present embodiment can be used for performing above method embodiment, and principle is similar with technique effect, this
Place repeats no more.
Further, it is described to enter state detection unit as a kind of optional embodiment of above device embodiment
10 can also be specifically used for detecting in the current area with the presence or absence of the international mobile subscriber identity for ensureing user
IMSI；And when detection know in the current area there are it is described ensure user IMSI when, determine it is described guarantee user into
Enter the current area.
Further, as a kind of optional embodiment of above device embodiment, the disturbed condition detection unit
20 can also be specifically used for detecting the surrounding adjacent cell and the difference of the Reference Signal Received Power RSRP of the current area.
Device described in the present embodiment can be used for performing above method embodiment, and principle is similar with technique effect, this
Place repeats no more.
It should be noted that for device embodiment, since it is basicly similar to embodiment of the method, so description
Fairly simple, the relevent part can refer to the partial explaination of embodiments of method.
The adjacent area interference reduction method and device of the present invention, does not need to manual intervention, can realize that automatic detection is current small
The adjacent area disturbed condition in area, and realize adaptive adjustment adjacent area CRS power, it improves and ensures that user perceives, applicable network self-optimizing
Development trend；And only when secure user enters cell, be just adjusted adjacent area CRS power, due to according to ensure user into
Enter/leave cell, just the operation of the corresponding adjustment CRS parameters of triggering, each cell, which actually enters, ensures that the time is relatively short, to existing
Net influence is minimum, and due to using automatic detection, realizing adaptation function, greatly reducing manual intervention, saved operation
Cost.
Above example is merely to illustrate technical scheme of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each implementation
Technical solution recorded in example modifies or carries out equivalent replacement to which part technical characteristic；And these are changed or replace
It changes, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (10)
- A kind of 1. method for reducing adjacent area interference, which is characterized in that including：Detection ensures whether user enters current area；If detection knows that the guarantee user enters the current area, surrounding's adjacent cell of the current area is detected to institute State the disturbed condition parameter of current area；According to the disturbed condition parameter of detection, interference of the surrounding adjacent cell to the current area is reduced.
- 2. according to the method described in claim 1, it is characterized in that, the detection ensures whether user enters current area, packet It includes：It detects in the current area with the presence or absence of the international mobile subscriber identity IMSI for ensureing user；If detection knows that there are the IMSI for ensureing user in the current area, it is determined that described in the guarantee user enters Current area.
- 3. according to the method described in claim 1, it is characterized in that, surrounding's adjacent cell of the detection current area is to institute The disturbed condition parameter of current area is stated, including：Detect the surrounding adjacent cell and the difference of the Reference Signal Received Power RSRP of the current area.
- 4. according to the method described in claim 3, it is characterized in that, the disturbed condition parameter according to detection, reduces Interference of the surrounding adjacent cell to the current area, including：If detection knows that the quantity for the surrounding's adjacent cell for meeting preset condition is more than preset value, reduce and all meet preset condition Surrounding's adjacent cell cell reference signals CRS power；Wherein, the preset condition include with the RSRP of the current area it Difference is less than surrounding's adjacent cell of predetermined threshold value.
- 5. according to the method described in claim 4, it is characterized in that, the method further includes：It is reducing around described in the CRS power process of adjacent cell, for the guarantee user setting CRS power in adjacent cell around this Default bias amount, to ensure that the guarantee user around this in adjacent cell is not influenced by CRS power drops.
- 6. according to the method described in claim 4, it is characterized in that, described reduce all surrounding's adjacent cells for meeting preset condition Cell reference signals CRS power, including：The X2 message between message or station into the surrounding's adjacent cell transfer station for meeting preset condition, to ask the satisfaction default The base station of surrounding's adjacent cell of condition reduces CRS power.
- 7. according to claim 1-6 any one of them methods, which is characterized in that the method further includes：Detect whether the guarantee user has left the current area；If detection knows that the guarantee user has left the current area, the reduction surrounding adjacent cell is cancelled to institute State the operation of the interference of current area.
- 8. a kind of device for reducing adjacent area interference, which is characterized in that including：Into state detection unit, ensure whether user enters current area for detecting；Disturbed condition detection unit, for when detection knows that the guarantee user enters the current area, detection is described to work as Surrounding's adjacent cell of preceding cell is to the disturbed condition parameter of the current area；Adjacent area interference reduces unit, for the disturbed condition parameter according to detection, reduces the surrounding adjacent cell to described The interference of current area.
- 9. device according to claim 8, which is characterized in that it is described to enter state detection unit, specifically for detecting institute It states in current area with the presence or absence of the international mobile subscriber identity IMSI for ensureing user；And described in knowing when detection There are during the IMSI of the guarantee user in current area, determine that the guarantee user enters the current area.
- 10. device according to claim 8, which is characterized in that the disturbed condition detection unit, specifically for detecting institute State adjacent cell around and the difference of the Reference Signal Received Power RSRP of the current area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611235999.3A CN108260157A (en) | 2016-12-28 | 2016-12-28 | Reduce the method and device of adjacent area interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611235999.3A CN108260157A (en) | 2016-12-28 | 2016-12-28 | Reduce the method and device of adjacent area interference |
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| CN108260157A true CN108260157A (en) | 2018-07-06 |
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| US20160057666A1 (en) * | 2013-03-29 | 2016-02-25 | Alcatel Lucent | Method, apparatus, and system for biasing adjustment of cell range expansion |
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| CN101472339A (en) * | 2007-12-25 | 2009-07-01 | 华为技术有限公司 | Method for coordinating district interference |
| WO2011097822A1 (en) * | 2010-02-12 | 2011-08-18 | 上海贝尔股份有限公司 | Method and apparatus for controlling power of micro cell base station |
| CN102204310A (en) * | 2011-05-17 | 2011-09-28 | 华为技术有限公司 | Resource allocation method, apparatus and base station |
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Application publication date: 20180706 |