CN102904018B - A kind of method and device of active antenna self-adaptative adjustment angle of declination - Google Patents
A kind of method and device of active antenna self-adaptative adjustment angle of declination Download PDFInfo
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Abstract
The invention discloses the method and device of a kind of active antenna self-adaptative adjustment angle of declination, wherein the method comprise the steps that and gradually increase antenna up-downgoing angle of declination angle by pre-fixed step size, until the Key Performance Indicator KPI collected no longer promotes, then carry out parameters back operation for the first time；After carrying out parameters back operation for the first time, gradually reduce the angle of antenna up-downgoing angle of declination by pre-fixed step size, until the KPI collected subsequently no longer promotes, then carry out second time parameters back operation；After carrying out second time parameters back operation, the descending angle of declination of fixed antenna, and gradually reduce the angle of antenna uplink angle of declination by pre-fixed step size, until cell edge covering performance no longer improves.The present invention can carry out the network optimization automatically, effectively use the feature of active antenna, it is to avoid the consuming resource of artificial optimization and not in time, the problem such as inaccurate.
Description
Technical field
The present invention relates to wireless communication technology field, particularly to a kind of method of active antenna self-adaptative adjustment angle of declination
And device.
Background technology
The radio frequency unit of traditional base station and antenna are separation designs, and antenna is multiple passive a period of time to achieve antenna beam
Molding, for electrical tilt antenna, the phase place that only have adjusted each array element realizes angle of declination control.
Traditional passive antenna and RRU are combined into an entirety by active antenna, and each a period of time of antenna is carried out list
Solely feeding, this will bring a lot of benefit: environmental protection, ultra broadband, easily installation, high robust, power system capacity will promote.
Compared with traditional passive antenna, the advantage of active antenna is as follows:
1. up-downgoing independence angle of declination
Traditional antenna up-downgoing uses identical angle of declination, when descending reach best performance time, up performance differs
Fixed optimum, active antenna can use different angle of declinations due to up-downgoing, under descending angle of declination fixing situation, up appearance
Amount or terminal battery life etc. will be enhanced.
2. independent angle of declination between carrier wave/system
Between different carrier/system, the requirement to angle of declination is different, and traditional antenna can only take compromise wherein
Way, the wave beam between different carrier/system then can be independently controlled by active antenna, so that the performance of network reaches
Excellent, the shared of wireless access network will further simplify simultaneously.As GSM and UMTS R99 system is the most different to the demand of angle of declination.
The most vertical many sectors
An original sector is split into two sectors by vertical many sectors, and resource is double, therefore, will significantly improve system
Capacity.
Above 3 functionality advantages are required for optimizing and revising the angle of declination of up-downgoing, and prior art exists following defect or not
Foot: can not be according to the angle of declination of the up-downgoing of network condition self-adaptative adjustment active antenna to reach the optimization of network performance.
Summary of the invention
A kind of method that it is an object of the invention to provide active antenna self-adaptative adjustment angle of declination, in order to according to network condition
The angle of declination of the up-downgoing of self-adaptative adjustment active antenna, in order to make network performance optimization.
Along with the development of wireless network, the proportion of data service dramatically increases, and the service traffics of up-downgoing generally present
Go out asymmetric characteristic, it is common that downlink capacity is limited；Furthermore, due to the restriction of terminal power, the most up covering is limited.
Therefore, methods described herein are to be as the criterion with network KPI (comprising capacity), then focus on ascending edge and cover.
It is a further object of the present invention to provide a kind of device implementing said method.
According to a first aspect of the present invention, the method for a kind of active antenna self-adaptative adjustment angle of declination provided includes following
Step:
Gradually increase antenna up-downgoing angle of declination angle by pre-fixed step size, until the Key Performance Indicator KPI collected is not
Promote again, then carry out parameters back operation for the first time；
After carrying out parameters back operation for the first time, gradually reduce the angle of antenna up-downgoing angle of declination by pre-fixed step size,
Until the KPI collected subsequently no longer promotes, then carry out second time parameters back operation；
After carrying out second time parameters back operation, the descending angle of declination of fixed antenna, and gradually reduce sky by pre-fixed step size
The angle of the up angle of declination of line, until cell edge covering performance no longer improves.
Preferably, described pre-fixed step size of gradually pressing increases antenna up-downgoing angle of declination angle, until the KPI collected is not
The step promoted again includes: after increasing antenna up-downgoing angle of declination angle by pre-fixed step size every time, gathers KPI and judges that it is
No lifting；If judging, KPI promotes, then continue the increase of Downtilt angle, otherwise, then stop the angle of declination of antenna up-downgoing
The increase of angle.
Preferably, the parameters back operation for the first time of described carrying out includes: the angle of declination angle of antenna up-downgoing return
Last position when increasing is stopped to its angle of declination angle.
Preferably, the described angle gradually reducing Downtilt by pre-fixed step size, until the KPI collected subsequently is not
The step promoted again includes: after reducing antenna up-downgoing angle of declination angle by pre-fixed step size every time, gathers KPI and judges that it is
No lifting；If judging, KPI promotes, then continue the reduction of antenna up-downgoing angle of declination angle, otherwise, then stop under antenna up-downgoing
The reduction of tilt angles.
Preferably, described carrying out second time parameters back operation includes: the angle of declination angle of antenna up-downgoing return
Last position when reducing is stopped to its angle of declination angle.
Preferably, the described angle gradually reducing antenna uplink angle of declination by pre-fixed step size, until cell edge covers
The step that performance is no longer improved includes: after reducing antenna uplink angle of declination angle by pre-fixed step size every time, receives reflection community
The signal of edges cover performance also judges whether its cell edge covering performance improves；If judging, cell edge covers index and changes
Kind, then continue the reduction of antenna uplink angle of declination angle, otherwise, then stop the reduction of antenna uplink angle of declination angle.
Preferably, the signal of described reflection cell edge covering performance be the Serving cell that reports of Cell Edge User without
Wired link measures signal RSRP and/RSRQ.
Preferably, described Cell Edge User is to draw by being compared with the distance of site location by customer location.
Preferably, described KPI includes: one of community KPI, switching matrix and interference matrix or combination.
According to a second aspect of the present invention, the device of a kind of active antenna self-adaptative adjustment angle of declination provided includes:
Up-downgoing angle of declination angle increases adjusting module, for gradually increasing antenna up-downgoing angle of declination angle by pre-fixed step size
Degree, until the KPI collected no longer promotes, then carries out parameters back operation for the first time；
Up-downgoing angle of declination angle reduces adjusting module, for after carrying out parameters back operation for the first time, gradually by pre-
Fixed step size reduces the angle of antenna up-downgoing angle of declination, until the KPI collected subsequently no longer promotes, then carries out second time and joins
Number rollback operation；
Up angle of declination angle reduces adjusting module, is used for after carrying out second time parameters back operation, under fixed antenna
Row angle of declination, and the angle of antenna uplink angle of declination is gradually reduced by pre-fixed step size, refer to until the cell edge received covers
Mark no longer improves.
Relative to prior art, the method have the benefit that:
1) can automatically carry out the network optimization, effectively use the feature of active antenna, it is to avoid the consuming of artificial optimization
Resource and not in time, the problem such as inaccurate.
2) by Automatic Optimal up-downgoing angle of declination, capacity and the quality of wireless network can be effectively improved, improve up
Cover and reduce power consumption of terminal.
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Embodiment be described in detail.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the method for a kind of active antenna self-adaptative adjustment angle of declination of the present invention；
Fig. 2 is the schematic diagram of the device of a kind of active antenna self-adaptative adjustment angle of declination of the present invention；
Fig. 3 is the flow chart of the embodiment of the active antenna self-adaptative adjustment angle of declination of the present invention.
Detailed description of the invention
Fig. 1 shows the method for a kind of active antenna self-adaptative adjustment angle of declination of the present invention, comprises the following steps:
Gradually increase antenna up-downgoing angle of declination angle by pre-fixed step size, until the Key Performance Indicator KPI collected is not
Promote again, then carry out parameters back operation for the first time；
After carrying out parameters back operation for the first time, gradually reduce the angle of antenna up-downgoing angle of declination by pre-fixed step size,
Until the KPI collected subsequently no longer promotes, then carry out second time parameters back operation；
After carrying out second time parameters back operation, the descending angle of declination of fixed antenna, and gradually reduce sky by pre-fixed step size
The angle of the up angle of declination of line, until cell edge covering performance no longer improves.
Above-mentioned KPI includes: one of community KPI, switching matrix and interference matrix or combination.
The signal of above-mentioned reflection cell edge covering performance is the Serving cell wireless link that Cell Edge User reports
Measuring signal RSRP and/RSRQ, wherein, Cell Edge User is to draw by being compared with the distance of site location by customer location
's.
Additionally, above-mentioned gradually increases antenna up-downgoing angle of declination angle by pre-fixed step size, until the KPI collected is no longer
The step promoted includes: after increasing antenna up-downgoing angle of declination angle by pre-fixed step size every time, gathers KPI and whether judges it
Promote；If judging, KPI promotes, then continue the increase of Downtilt angle, otherwise, then stop the angle of declination angle of antenna up-downgoing
The increase of degree.
Additionally, the parameters back operation for the first time of above-mentioned carrying out includes: the angle of declination angle of antenna up-downgoing is returned to
Its angle of declination angle stops last position when increasing；It is, after the angle of declination angle of antenna up-downgoing stops increasing,
Its angle of declination reduces its angle by a pre-fixed step size, such as, if pre-fixed step size is 0.5 degree, then angle of declination is in time stopping increasing
Angle reduce 0.5 degree.
Additionally, the above-mentioned angle gradually reducing Downtilt by pre-fixed step size, until the KPI collected subsequently is no longer
The step promoted includes: after reducing antenna up-downgoing angle of declination angle by pre-fixed step size every time, gathers KPI and whether judges it
Promote；If judging, KPI promotes, then continue the reduction of antenna up-downgoing angle of declination angle, otherwise, then stop antenna up-downgoing and have a down dip
The reduction of angle angle.
Additionally, above-mentioned carrying out second time parameters back operation includes: the angle of declination angle of antenna up-downgoing is returned to
Its angle of declination angle stops last position when reducing.It is, after the angle of declination angle of antenna up-downgoing stops reducing,
Its angle of declination increases its angle by a pre-fixed step size；Such as, if pre-fixed step size is 0.5 degree, then angle of declination is in time stopping increasing
Angle increase by 0.5 degree.
Additionally, the above-mentioned angle gradually reducing antenna uplink angle of declination by pre-fixed step size, until cell edge spreadability
The step that can no longer improve includes: after reducing antenna uplink angle of declination angle by pre-fixed step size every time, receives reflection limit, community
The signal of edge covering performance also judges whether its cell edge covering performance improves；If judging, cell edge covers target improvement,
Then continue the reduction of antenna uplink angle of declination angle, otherwise, then stop the reduction of antenna uplink angle of declination angle.
Fig. 2 shows the device of a kind of active antenna self-adaptative adjustment angle of declination of the present invention, as in figure 2 it is shown, include:
Up-downgoing angle of declination angle increases adjusting module, for gradually increasing antenna up-downgoing angle of declination angle by pre-fixed step size
Degree, until the KPI collected no longer promotes, then carries out parameters back operation for the first time；
Up-downgoing angle of declination angle reduces adjusting module, for after carrying out parameters back operation for the first time, gradually by pre-
Fixed step size reduces the angle of antenna up-downgoing angle of declination, until the KPI collected subsequently no longer promotes, then carries out second time and joins
Number rollback operation；
Up angle of declination angle reduces adjusting module, is used for after carrying out second time parameters back operation, under fixed antenna
Row angle of declination, and the angle of antenna uplink angle of declination is gradually reduced by pre-fixed step size, refer to until the cell edge received covers
Mark no longer improves.
What Fig. 3 showed the present invention is up-downgoing one specific embodiment flow process of independence angle of declination self-adaptative adjustment.Such as Fig. 3
Shown in, the present embodiment flow process includes:
The angle of declination of step 1. up-downgoing increases angle with 0.5 degree for step-length.
The collection of step 2.KPI index and analysis, including community KPI, switching matrix, interference matrix etc..
KPI index example
| Classification | KPI index |
| The KPI of community | Handling capacity |
| E-RAB is created as power | |
| E-RAB cutting off rate | |
| Handover success rate | |
| Interference matrix (is reported by UE) | Serving cell RSRP |
| Adjacent cell RSRP |
Effect after optimizing is commented by step 3.OAM (Operation Administration and Maintenance platform) according to the KPI index of a period of time
Estimating, if performance boost, OAM confirms that this optimization operates, and the angle of declination of up-downgoing continues to increase angle with 0.5 degree for step-length；As
Really performance does not promote, and can carry out parameters back, allows system return to the last state optimized before operation.
If step 4. parameters back, the angle of declination of up-downgoing reduces angle with 0.5 degree for step-length.OAM is according to KPI index
Being estimated the effect after optimizing, if performance boost, OAM confirms that this optimization operates, and the angle of declination of up-downgoing continues with 0.5
Spend and reduce angle for step-length；If performance does not promote, parameters back can be carried out, allow system return to last optimization operation
Front state.
Step 5. fixes descending angle of declination, and up angle of declination reduces angle with 0.5 degree for step-length.OAM is according to limit, community
Effect after optimizing is estimated by RSRP and the RSRQ message of edge user, if performance boost, OAM confirms that this optimization operates,
Up angle of declination reduces angle with 0.5 degree for step-length；If performance does not promote, parameters back can be carried out, allow system return
To the state optimized before operation.
The method judging whether Cell Edge User is according to terminal to report ECGI/CGI and site match, then according to end
Hold the position reported to compare with the distance of coupling site location to draw.
Additionally, embodiments of the invention flow process can also include. set the step in region to be optimized.In this step, it is
System terminal in region to be optimized sends measures configuration message, and wherein this measures configuration message independent of the normal RRM of network
(Radio Resource Management, RRM) purpose；Terminal record periodically reporting measurement message, position
Confidence breath and temporal information.
Above-mentioned measurement message is including but not limited to following message: descending pilot frequency ionization meter, serving cell quality RSRQ, clothes
Business community ECGI/CGI (Evolved Cell Global Identifier, Cell Global Identification), adjacent area PCI
(Physical Cell Identifier, Physical Cell Identifier), terminal transmission power, paging channel demodulation failure, broadcast letter
Road demodulates unsuccessfully, Traffic Channel demodulates unsuccessfully, RLF (Radio Link Failure, Radio Link Failure), Serving cell is wireless
Link measures (RSRP, RSRQ etc.) less than a certain thresholding etc..
Wherein, terminal advanced person's line position positions, reporting position information the most again.Location based on mobile communications network mode
Include but not limited to: observation arrival time difference (Observed Time Difference of Arrival, referred to as OTDOA),
Observation arrives time difference and GPS (Global Positioning System, global positioning system) comprehensively positions.Preferential use
Observation arrives time difference and GPS comprehensively positions, if GPS lock number of satellite is less than 4, then uses observation to arrive time difference side
Method.
The configuration parameter information of website and community, including but not limited to:
| Classification | Configuration |
| Site configuration parameter | Site location and height |
| Cell configuration parameter | Antenna model |
| Antenna azimuth | |
| Up angle of declination | |
| Descending angle of declination | |
| Vertical sector number |
In sum, the present invention can carry out the network optimization automatically, effectively uses the feature of active antenna, it is to avoid people
Consuming resource that work optimizes and not in time, the problem such as inaccurate.Additionally, the present invention is by Automatic Optimal up-downgoing angle of declination,
Capacity and the quality of wireless network can be effectively improved.
These are only that the present invention's is preferable to carry out case, be not limited to the present invention, the present invention also can have other
Various embodiments, in the case of without departing substantially from present invention spirit and essence thereof, those of ordinary skill in the art can be according to this
Bright make various corresponding change and deformation, but these change accordingly and deformation all should belong to appended claims of the invention
Protection domain.
Claims (7)
1. the method for an active antenna self-adaptative adjustment angle of declination, it is characterised in that comprise the following steps:
Gradually increase antenna up-downgoing angle of declination angle by pre-fixed step size, until the Key Performance Indicator KPI collected no longer carries
Rise, then carry out parameters back operation for the first time；
After carrying out parameters back operation for the first time, gradually reduce the angle of antenna up-downgoing angle of declination by pre-fixed step size, until
The KPI collected subsequently no longer promotes, and then carries out second time parameters back operation；
After carrying out second time parameters back operation, the descending angle of declination of fixed antenna, and gradually reduce on antenna by pre-fixed step size
The angle of row angle of declination, until cell edge covering performance no longer improves；
The parameters back operation for the first time of described carrying out includes: the angle of declination angle of antenna up-downgoing is returned to its angle of declination angle
Degree stops last position when increasing；
Described carrying out second time parameters back operation includes: the angle of declination angle of antenna up-downgoing is returned to its angle of declination angle
Degree stops last position when reducing；
Described KPI includes: one of community critical index, switching matrix and interference matrix or combination；Described community is key
Index comprises handling capacity.
Method the most according to claim 1, it is characterised in that described is gradually increased under antenna up-downgoing by pre-fixed step size
Tilt angles, until the step that the KPI collected no longer promotes includes:
Increasing antenna up-downgoing angle of declination angle by pre-fixed step size after every time, gather KPI and judge whether it promotes；
If judging, KPI promotes, then continue the increase of Downtilt angle, otherwise, then stop the angle of declination angle of antenna up-downgoing
The increase of degree.
Method the most according to claim 2, it is characterised in that described gradually reduces Downtilt by pre-fixed step size
Angle, until the step that the KPI collected subsequently no longer promotes includes:
Reducing antenna up-downgoing angle of declination angle by pre-fixed step size after every time, gather KPI and judge whether it promotes；
If judging, KPI promotes, then continue the reduction of antenna up-downgoing angle of declination angle, otherwise, then stop antenna up-downgoing and have a down dip
The reduction of angle angle.
Method the most according to claim 1, it is characterised in that described gradually has a down dip by pre-fixed step size reduction antenna uplink
The angle at angle, until the step that cell edge covering performance no longer improves includes:
After reducing antenna uplink angle of declination angle by pre-fixed step size, receive the signal of reflection cell edge covering performance also every time
Judge whether its cell edge covering performance improves；
If judging, cell edge covers target improvement, then continue the reduction of antenna uplink angle of declination angle, otherwise, then stop antenna
The reduction of up angle of declination angle.
Method the most according to claim 4, it is characterised in that the signal of described reflection cell edge covering performance is little
The Serving cell wireless link of area edge reporting of user measures signal RSRP and/or RSRQ.
Method the most according to claim 5, it is characterised in that described Cell Edge User is by by customer location and station
The distance of some position compares and draws.
7. the device of an active antenna self-adaptative adjustment angle of declination, it is characterised in that including:
Up-downgoing angle of declination angle increases adjusting module, for gradually increasing antenna up-downgoing angle of declination angle by pre-fixed step size,
Until the KPI collected no longer promotes, then carry out parameters back operation for the first time；
Up-downgoing angle of declination angle reduces adjusting module, for after carrying out parameters back operation for the first time, gradually by predetermined step
The long angle reducing antenna up-downgoing angle of declination, until the KPI collected subsequently no longer promotes, then carries out second time parameter and returns
Move back operation；
Up angle of declination angle reduces adjusting module, is used for after carrying out second time parameters back operation, under fixed antenna is descending
Inclination angle, and gradually reduce the angle of antenna uplink angle of declination by pre-fixed step size, until the cell edge received covers index not
Improve again；
The parameters back operation for the first time of described carrying out includes: the angle of declination angle of antenna up-downgoing is returned to its angle of declination angle
Degree stops last position when increasing；
Described carrying out second time parameters back operation includes: the angle of declination angle of antenna up-downgoing is returned to its angle of declination angle
Degree stops last position when reducing；
Described KPI includes: one of community critical index, switching matrix and interference matrix or combination；Described community is key
Index comprises handling capacity.
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2013403815B2 (en) * | 2013-10-22 | 2017-09-07 | Huawei Technologies Co.,Ltd. | Antenna splitting method and controller in active antenna system |
| CN104283597B (en) * | 2013-11-25 | 2018-03-27 | 北京邮电大学 | A kind of beam form-endowing method and equipment |
| CN105208578A (en) * | 2014-06-24 | 2015-12-30 | 中兴通讯股份有限公司 | Base station optimizing method and base station optimizing device |
| CN106851665A (en) * | 2015-12-07 | 2017-06-13 | 上海无线通信研究中心 | The downdip adjusting method of antenna and base station |
| CN108064051B (en) * | 2016-11-07 | 2021-08-06 | 中国移动通信集团河北有限公司 | Method, device and equipment for determining network radio frequency optimization scheme |
| CN108810921A (en) * | 2017-04-28 | 2018-11-13 | 中兴通讯股份有限公司 | A kind of Downtilt method of adjustment and device |
| CN107509207B (en) * | 2017-08-01 | 2021-04-30 | 中国联合网络通信集团有限公司 | Antenna downward inclination angle adjusting method and device |
| CN111835545B (en) * | 2019-04-22 | 2023-03-24 | 中兴通讯股份有限公司 | Self-adaptive configuration method and device of network |
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| CN102438251A (en) * | 2011-09-16 | 2012-05-02 | 江苏省邮电规划设计院有限责任公司 | Method for calculating downward inclination angle of mobile communication base station antenna |
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| US8447237B2 (en) * | 2010-04-12 | 2013-05-21 | Telefonaktiebolaget L M Ericsson (Publ) | Interference avoidance in white space communication systems |
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| CN102082615A (en) * | 2009-11-30 | 2011-06-01 | 中国移动通信集团北京有限公司 | Method and equipment for indentifying interference source cell and adjusting antenna downward inclination angle of cell |
| CN102438251A (en) * | 2011-09-16 | 2012-05-02 | 江苏省邮电规划设计院有限责任公司 | Method for calculating downward inclination angle of mobile communication base station antenna |
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Effective date of registration: 20170428 Address after: 518057 Nanshan District high tech Industrial Park, Guangdong, ZTE building, A3-01, A3-02, Patentee after: Shenzhen Zhongxing Communication Technology Service Co., Ltd. Address before: 518057 Nanshan District Guangdong high tech Industrial Park, South Road, science and technology, ZTE building, Ministry of Justice Patentee before: ZTE Corporation |