CN103297978B - A kind of cell configuring method and device - Google Patents
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- CN103297978B CN103297978B CN201210050129.4A CN201210050129A CN103297978B CN 103297978 B CN103297978 B CN 103297978B CN 201210050129 A CN201210050129 A CN 201210050129A CN 103297978 B CN103297978 B CN 103297978B
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Abstract
The invention discloses a kind of cell configuring method, it is characterised in that during the existed system operation using sectorization networking, the method includes: the loading of A, regularly statistical system each community interior and/or interference value；B, for timing statistical result, when the interference value of at least one community is more than the first interference threshold preset in belonging to the loading of three sectorized cells of same base station and being respectively less than the first load thresholding preset and/or belong to three sectorized cells of same base station, these three sectorized cells belonging to same base station is merged and is configured to a logic district.The invention also discloses a kind of cell configuration device.The application present invention, it is possible to reduce adjacent area interference.
Description
Technical field
The present invention relates to Anti-Jamming Technique, particularly to a kind of cell configuring method and device.
Background technology
In TD-SCDMA system, the ultimate principle of scrambling code planning is as follows:
Compound key is to be obtained by element multiplication with scrambler by spread spectrum code；Due to user-user signal in TD system
Jointly being distinguished by spread spectrum code and scrambler, therefore, the orthogonality between compound key determines between user
The size of interference.Specifically, compound key (16,1) refer to No. 16 spread spectrum code combine with No. 1 scrambler and
The compound key become.
When SF=16 (using the spread spectrum code of SF=16 at TD-SCDMA existing network), 128
In scrambler, each scrambler forms the compound key set of oneself for respective 16 spread spectrum codes.Such
In 128 compound key set, it is much identical, the most only 12 different compound key set,
And the arbitrary compound key during the arbitrary compound key in a set is gathered from another is the most different.Correspondingly,
128 scramblers can be divided into 12 scrambler groups accordingly.During SF=16, scrambler group divides such as following table:
| Packet | Scrambling code identification |
| 1 | 0 4 25 26 28 29 33 39 41 42 48 52 54 56 84 89 |
| 2 | 1 5 7 10 15 20 40 46 47 49 61 64 75 82 118 126 |
| 3 | 2 3 6 11 12 17 22 23 34 35 36 38 45 50 65 86 |
| 4 | 8 9 13 14 18 19 24 27 32 37 44 67 70 104 116 117 |
| 5 | 16 21 30 31 43 59 78 85 92 94 99 105 107 109 124 125 |
| 6 | 51 58 102 127 |
| 7 | 53 80 91 100 120 |
| 8 | 55 60 71 83 87 112 115 |
| 9 | 57 77 81 88 96 97 101 |
| 10 | 62 68 69 76 108 122 |
| 11 | 63 66 72 79 93 95 106 110 113 123 |
| 12 | 73 74 90 98 103 111 114 119 121 |
Table 1
In current TD-SCDMA system, during networking, fixing employing sectorized cells networking, the most same
Each physical sector of individual base station is fixing is mapped as 1 logic district, and each logic district is owing to covering model
Enclose and overlay area limits, at least need to configure 6 adjacent areas and 1.5 of 1 times of radius when configuring adjacent cell
6 adjacent areas (generally will be more than 12 TD-SCDMA adjacent areas) of times radius.?
In TD-SCDMA system, as it was previously stated, 128 scramblers can only divide according to the cross-correlation level of compound key
It is 12 code characters (SF=16).In this case, each community may be in physics adjacent area or patrol
Collecting in adjacent area has the adjacent cell of same scrambler group to occur.Owing to the frequency of TD system is limited, once network words
Business rises to certain level, and the same frequency in network will be the most serious with scrambler group phenomenon.
Specifically, in TD-SCDMA system, as it is shown in figure 1, center cell is it is generally required to configure 1
6, the adjacent area of times radius, 6, the adjacent area of 1.5 times of radiuses, 6, the adjacent area of 2 times of radiuses；Average adjacent area
Number about 18；Due to the covering radius about 300 meters of each community, the adjacent area of 2 times of radiuses is 600
Rice.Even if being configured with 2 times of adjacent areas, the community outside 2 times of adjacent areas is still compared for the interference of center cell
Greatly.
It addition, in TD-SCDMA system, the scrambler group of existing network has 32, but these scrambler groups
Correlation with each other differs, and actual only have 12 according to the code character of good relationship in the case of SF16；Averagely
In the case of adjacent area number 18, it is difficult to ensure that the dependency of the scrambler of this adjacent area and periphery adjacent area is the most relatively
Good.
Summary of the invention
The invention provides a kind of cell configuring method and device, it is possible to reduce the interference between adjacent cell.
For achieving the above object, the present invention adopts the following technical scheme that:
A kind of cell configuring method, during the existed system operation using sectorization networking, the method
Including:
The loading of A, regularly statistical system each community interior and/or interference value；
B, for timing statistical result, when the loading of three sectorized cells belonging to same base station is equal
Less than the first load thresholding preset and/or in belonging to three sectorized cells of same base station at least one
When the interference value of community is more than the first interference threshold preset, this is belonged to three sectorization of same base station
Cell combining is configured to a logic district.
It is preferred that after described merging configuration completes, the method farther includes: repeat step A and B,
For the statistical result of step A, preset when the loading of the logic district including three sectors is more than
The second load thresholding and/or include three sectors a logic district interference less than preset second
During interference threshold, the logic district division that this includes three sectors is configured to three sectorized cells.
It is preferred that described second load thresholding=3* the first load thresholding+load _ hysteretic threshold, described
Two interference thresholds=3* the first interference threshold-interference _ hysteretic threshold, described load _ hysteretic threshold and interference _
Hysteretic threshold is all higher than 0.
It is preferred that described timing statistics is periodic statistics, described timing statistical result is periodic statistics
Result.
It is preferred that the loading of described community is the telephone traffic of community.
A kind of cell configuration device, including: performance statistics unit and cell configuration unit；
Described performance statistics unit, for loading and/or the interference of timing statistical system each community interior
Value, and timing statistical result is sent to described cell configuration unit；
Described cell configuration unit, is used for receiving described timing statistical result, and is belonging to same base station
The loading of three sectorized cells is respectively less than the first load thresholding preset and/or belongs to same base station
When in three sectorized cells, the interference value of at least one community is more than the first interference threshold preset, should
Three the sectorized cells merging belonging to same base station are configured to a logic district.
It is preferred that described cell configuration unit, it is further used for a logic including three sectors little
The loading in district is more than the second load thresholding preset and/or the logic district including three sectors
When interference is less than the second interference threshold preset, the logic district division that this includes three sectors is joined
It is set to three sectorized cells.
As seen from the above technical solution, in the present invention, regularly in statistical system each community loading and
/ or interference value；For every time timing statistical result, if belong to three sectorized cells of same base station
Loading is respectively less than in the first load thresholding preset and/or three sectorized cells belonging to same base station
When the interference value of at least one community is more than the first interference threshold preset, this is belonged to the three of same base station
The merging of individual sectorized cells is configured to a logic district.So, relatively gently and/or disturb relatively at cell load
During weight, being merged three sectorized cells and be configured to a community, thus reduce number of cells, minimizing is disturbed
Code usage amount, reduces presence of intercell interference.
After realizing merging configuration, further, when the load of the logic district including three sectors
Amount is little more than the interference value of the second load thresholding preset and/or the logic district including three sectors
When the second default interference threshold, the logic district division that this includes three sectors is configured to three
Individual sectorized cells.So, heavier at cell load and/or interference lighter time, it is also possible to by merged
Again divide including the community of three sectors and be configured to three sectorized cells, thus improve cell capacity.
Accompanying drawing explanation
Fig. 1 is that the adjacent area in existing sectorization group network system arranges schematic diagram；
Fig. 2 is the particular flow sheet of small area of the present invention collocation method；
Fig. 3 is that the adjacent area after applying small area of the present invention collocation method arranges schematic diagram；
Fig. 4 is the concrete structure figure of small area of the present invention configuration device.
Detailed description of the invention
For making the purpose of the present invention, technological means and advantage clearer, below in conjunction with accompanying drawing to this
Invention is described in further details.
The basic thought of the present invention is: in being complete the sectorization group network system realizing operation, pass through
Have ready conditions in a piece of big overlay area and select cell portion to carry out multiple physical sector merging, indirectly expand
Big MPS process area, weakens the co-channel interference between intensive community, it is possible to promote network KPI,
More preferable Consumer's Experience is brought to client.
Specifically, the community using sector to cover, primary concern is that and can expand cell capacity, load
More business.But in sectorized cells, as mentioned in the background art, the phase of sectorized cells
In adjacent cell configuration, it is difficult to ensure that the scrambler that all neighbor cells use all has good orthogonality, because of
This there will be mutual interference.In the present invention, in the region that cell load amount is less, it is considered to pass through
Merge cell enlargement cell coverage area, reduce presence of intercell interference, the pass between balance interference and cell capacity
System.
Fig. 2 is the particular flow sheet of small area of the present invention collocation method.As in figure 2 it is shown, the method includes:
Step 201, the regularly loading of each community and/or interference value in statistical system.
For reducing interference, the present invention considers carry out cell combining.But need to consider in suitable condition
Under carry out cell combining, could reduce interference, ensure service quality.Accordingly, it would be desirable to it is each in statistical system
The loading of individual community and/or interference value.Wherein, when determining merging condition according only to interference value, only unite
Meter interference value；When determining merging condition according only to loading, only statistics cell load amount；When while root
When determining merging condition with balance cell capacity and experienced interference according to interference value and cell load amount, statistics
The loading of community and interference value.
Specifically when statistics, it is preferable that use periodic statistical, and after each measurement period
Perform below step.
Step 202, for the statistical result in step 201, according to the first default load thresholding and/or
First interference threshold, selects qualified three sectorized cells belonging to same base station to merge and is configured to
One logic district.
The condition that specifically can carry out cell combining is divided into following three kinds:
When only considering cell load amount: when three sectorized cells negative belonging to same base station
In limited time, i.e. three sectorization are little for the first load door that lotus amount (such as, cellular traffic) is both less than preset
When the traffic load in district is the lightest, this three sectorized cells belonging to same base station can be merged；
When only considering interference value: when in three sectorized cells belong to same base station at least one
When the interference value of individual community is more than the first interference threshold preset, i.e. exist the interference of community the most serious time,
This three sectorized cells belonging to same base station can be merged；Interference when specifically can be set for merging
Heavier community number thresholding, such as one heavier i.e. needs of area interference merges, or two area interference are equal
Heavier just needs merges；
When considering interference value and cell load: when three sectorization belonging to same base station
When in community, the interference value of at least one community is more than the first interference threshold preset, and, belong to same base
The first load that the loading (such as, cellular traffic) of three sectorized cells stood both less than is preset
During thresholding, i.e. community also load under this base station is relatively light, and when disturbing more serious, this belongs to same base
Three sectorized cells stood need to merge.
The value of the first interference threshold and the first load thresholding can be set according to actual needs, specifically locates
Reason belongs to the common technology means of those skilled in the art, the most just repeats no more.Meanwhile, above-mentioned three kinds
Situation can be used alone or is used in combination.For example, it is possible to set: when interference level is the most serious,
Using the mode considering interference and cell load amount, now, the first interference threshold arranges relatively low；
When interference level is the most serious, using the mode only considering interference, now, the first interference threshold arranges phase
To higher.
Below, an example that telephone traffic is set the first load thresholding is given as cell load: with
It adds up telephone traffic for unit, and each R4 carrier wave maximum every day can provide telephone traffic: 15 × 24=
360Erl；Half the time is averagely only had to provide business according to each community every day: each R4 carrier wave is talked about every day
Business amount thresholding: 360/2=180Erl；According to security of system work thresholding 30% calculate, every day each R4
Carrier wave trouble free service thresholding is: 180 × 30%=54Erl；The telephone traffic of three sectorized cells merges into 1
Individual logic district, therefore, the telephone traffic thresholding of three sectorized cells is: 54/3=18Erl；Arrange again
Cell combining Safety Redundancy thresholding 50% calculates, and finally for R4 carrier wave, each sectorized cells is carried out
The telephone traffic thresholding of cell combining is: 18*50%=9Erl.
When specifically carrying out the configuration of cell combining, due to the method for the present invention be chosen in site, sky
Line frame is good, i.e. the hardware construction of current system is complete and permissible in the way of sectorized cells
In the case of operation, therefore carry out cell combining and use the mode of data configuration, specifically merge configuration mode
Use existing mode, the data being such as combined community to merge, re-start channel estimation etc..?
In community after merging, same scrambler, the most original three sectorized cells is used to use same scrambler, subtract
Lack the usage amount of scrambler, and need the scrambler group that neighbor cell is used again to plan, specifically
Planning mode is identical with existing mode, the most just repeats no more.
As it is shown on figure 3, wherein, center cell has only to configure 1 times of radius schematic diagram after having merged
6, adjacent area, coverage be equivalent to before 18 communities.
After completing to merge configuration, being still repeated continuously step 201, the load of each community is added up in timing
Amount and/or interference value, for the community after merging, after merging in units of community, carry out loading and do
Disturb the statistics of value.For ensureing cell capacity, under suitable conditions, need by the community that merged again
It is split into three sectorized cells.Specifically such as step 203:
Step 203: for the statistical result in step 201, according to the second default load thresholding and/or
Second interference threshold, selects the qualified cell splitting including three sectors to be configured to three sectorization
Community.
The condition that specifically can carry out cell splitting is divided into following three kinds:
When only considering cell load amount: when include three sectors community loading (such as,
Cellular traffic) more than the second load door preset in limited time, after i.e. merging, the traffic load of community is the most heavier
Time, this community including three sectors can be divided；
When only considering interference value: when include three sectors community interference value less than preset
During the second interference threshold, when the interference of community is little after i.e. merging, can be divided this and include three sectors
Community；
When considering interference value and cell load: when the interference of the community including three sectors
Value less than preset the second interference threshold time, and, this include three sectors community loading (such as,
Cellular traffic) more than the second load door preset in limited time, i.e. cell load after this merging is heavier, and
And when disturbing the biggest, this includes that the community of three sectors can merge.
The value of concrete second interference threshold and the second load thresholding can be set according to actual needs, excellent
Selection of land, for avoiding the community of same base station frequently to merge/divide, by dry to the first interference threshold and second
Disturb between thresholding and a hysteretic threshold is set between the first load thresholding and the second load thresholding.Meanwhile,
In view of the relevant parameter of the corresponding sectorized cells of the first interference threshold and the first load thresholding, second
Interference threshold and the relevant parameter of corresponding three the sector sums of the second load thresholding, it is preferred that first
Interference threshold and the second interference threshold and the first load thresholding and the second load thresholding have a following relation:
Second interference threshold=3* the first interference threshold-interference _ hysteretic threshold, the second load thresholding=3* the first load
Thresholding+load _ hysteretic threshold, wherein, load _ hysteretic threshold and interference _ hysteretic threshold are all higher than 0.
Meanwhile, above-mentioned three kinds of situations can be used alone or are used in combination.
So far, the method flow in the present invention terminates.Present invention also offers a kind of cell configuration device,
Can be used in implementing the cell configuring method in the invention described above.As shown in Figure 4, this cell configuration device
Including performance statistic unit and cell configuration unit.
Wherein, performance statistics unit, the loading of each community and/or interference value in statistical system,
And statistical result is sent to cell configuration unit；Cell configuration unit, is used for receiving statistical result, and
Belong to same base station three sectorized cells loading be respectively less than preset the first load thresholding and/
Or belong to the interference value of at least one community in three sectorized cells of same base station more than first preset
During interference threshold, these three sectorized cells belonging to same base station are merged and is configured to a logic district；
Cell configuration unit, can be also used for the load in the logic district including three sectors further
Amount is less than more than the interference of the second load thresholding preset and/or the logic district including three sectors
During the second interference threshold preset, the logic district division that this includes three sectors is configured to three
Sectorized cells.
By the method and apparatus in the invention described above, can in the group network system of existing sectorization,
Cell load, compared with light and/or that area interference is heavier region, carries out the merging of sectorized cells, dry to reduce
Disturb；Other communities are kept the MPS process of sectorization, to ensure cell capacity, it is provided that the clothes of more high-quality
Business.In community after merging, when load is heavier and/or interference is lighter, it is also possible to again divide configuration
For sectorized cells, to improve cell capacity, reach the purpose of dilatation.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Within the spirit of invention and principle, any modification, equivalent substitution and improvement etc. done, should be included in
Within the scope of protection of the invention.
Claims (7)
1. a cell configuring method, it is characterised in that runed at the existed system using sectorization networking
Cheng Zhong, the method includes:
The loading of A, regularly statistical system each community interior and/or interference value；
B, for timing statistical result, when the loading of three sectorized cells belonging to same base station is respectively less than
In the first load thresholding preset and/or three sectorized cells belonging to same base station, at least one community is dry
When disturbing value more than the first interference threshold preset, these three sectorized cells belonging to same base station are merged and joins
It is set to a logic district；Same scrambler is used in community after merging.
Method the most according to claim 1, it is characterised in that after described merging configuration completes, should
Method farther includes: repeat step A and B, for the statistical result of step A, when including three sectors
A logic district loading more than preset the second load thresholding and/or include that one of three sectors is patrolled
Collect when disturbing less than the second interference threshold preset of community, this is included a logic district of three sectors
Division is configured to three sectorized cells.
Method the most according to claim 2, it is characterised in that described second load thresholding=3* first
Load thresholding+load _ hysteretic threshold, described second interference threshold=3* the first interference threshold-interference _ sluggishness door
Limit, described load _ hysteretic threshold and interference _ hysteretic threshold are all higher than 0.
Method the most according to claim 1, it is characterised in that described timing statistics is periodic statistics,
Described timing statistical result is periodic statistics result.
5. according to the method described in claim 1,2 or 3, it is characterised in that the loading of described community is
The telephone traffic of community.
6. a cell configuration device, it is characterised in that this device includes: performance statistics unit and community are joined
Put unit；
Described performance statistics unit, for loading and/or the interference value of timing statistical system each community interior,
And timing statistical result is sent to described cell configuration unit；
Described cell configuration unit, is used for receiving described timing statistical result, and is belonging to three of same base station
The loading of sectorized cells is respectively less than the first load thresholding preset and/or belongs to three sectors of same base station
When the interference value of at least one community is more than the first interference threshold preset in change community, this is belonged to same base
Three the sectorized cells merging stood are configured to a logic district, use same in the community after configuration merging
Scrambler.
Device the most according to claim 6, it is characterised in that described cell configuration unit, further
For being more than, in the loading of the logic district including three sectors, the second load thresholding and/or the bag preset
When the interference of the logic district including three sectors is less than the second interference threshold preset, this is included three
One logic district division of sector is configured to three sectorized cells.
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| WO2015070455A1 (en) * | 2013-11-18 | 2015-05-21 | 华为技术有限公司 | Adaptive multiple rate coding rate adjusting method and device |
| CN104684091B (en) * | 2013-12-03 | 2019-04-26 | 华为技术服务有限公司 | Network architecture method of adjustment, device, network scheduling controller and base station |
| CN103841582B (en) | 2013-12-30 | 2017-11-21 | 上海华为技术有限公司 | A kind of control method and device |
| CN104244269B (en) * | 2014-09-23 | 2017-11-24 | 中国联合网络通信集团有限公司 | A kind of method and apparatus of cell networking |
| WO2016082228A1 (en) * | 2014-11-29 | 2016-06-02 | 华为技术有限公司 | Method and apparatus for adjusting air interface capacity density |
| US10285073B2 (en) * | 2015-06-02 | 2019-05-07 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for cell configuration |
| WO2017113215A1 (en) * | 2015-12-30 | 2017-07-06 | 华为技术有限公司 | Method and apparatus for merging cells |
| CN107404729A (en) * | 2016-05-18 | 2017-11-28 | 中兴通讯股份有限公司 | sector conversion method, base station, network element and communication system |
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| CN101035353A (en) * | 2006-03-06 | 2007-09-12 | 西门子（中国）有限公司 | Radio resource multiplexing method and allocation method in the radio mobile communication system |
| CN101106420A (en) * | 2006-07-11 | 2008-01-16 | 华为技术有限公司 | A method for merging downlink multicast services in a cell |
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| CN101394647B (en) * | 2007-09-21 | 2013-10-02 | 电信科学技术研究院 | Method and system for realizing cell networking |
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| GB2359452A (en) * | 2000-02-17 | 2001-08-22 | Motorola Inc | Allocation of channels in a pico-cell system |
| CN101035353A (en) * | 2006-03-06 | 2007-09-12 | 西门子（中国）有限公司 | Radio resource multiplexing method and allocation method in the radio mobile communication system |
| CN101106420A (en) * | 2006-07-11 | 2008-01-16 | 华为技术有限公司 | A method for merging downlink multicast services in a cell |
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Granted publication date: 20160921 |