CN103491552B - A kind of cell scrambling method to set up and equipment - Google Patents
A kind of cell scrambling method to set up and equipment Download PDFInfo
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- CN103491552B CN103491552B CN201310451025.9A CN201310451025A CN103491552B CN 103491552 B CN103491552 B CN 103491552B CN 201310451025 A CN201310451025 A CN 201310451025A CN 103491552 B CN103491552 B CN 103491552B
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Abstract
The invention discloses a kind of cell scrambling method to set up, the selection carrying out recommending scrambler while verifying cell scrambling is arranged, recommend the efficiency of scrambler and the accuracy high, it is to avoid by the artificial complicated repeated labor that scrambler is screened, make the quality of network be guaranteed.
Description
Technical field
The present invention relates to communication technical field, particularly to a kind of cell scrambling method to set up.The present invention is same
Time further relate to a kind of cell scrambling equipment be set.
Background technology
TD-SCDMA(Time Division-Synchronous Code Division Multiple Access,
The CDMA of time division synchronous) the code resource that uses of system can be divided into: downlink frequency pilot code, up leads
Frequency code, midamble code, cell scrambling, OVSF(Orthogonal Variable Spreading Factor,
Orthogonal Variable Spreading Factor OVSF) spread the types such as code.Downlink frequency pilot code has 32 groups, often corresponding 4 scramblers of group,
4 scramblers are a scrambler group.Different communities is mainly distinguished in the effect of scrambler, reduces presence of intercell interference.
In TD-SCDMA network, the wireless parameter of base station is verified and is carried out mainly for frequency and scrambler.
The main cause of interference is to there is the same scrambler of same frequency, same frequency in wireless parameter with scrambler group, with frequently with disturbing phase
Guan Xing, due to the most serious with the interference of scrambler, so needing as far as possible in the network planning and optimization with frequency
Improve scrambler multiplex distance and reduce intrasystem interference.But, along with dilatation and Neighborhood Optimization, a lot
There is same or like situation in the frequency of community and scrambler, need constantly to re-start verification, find out
In-problem scrambler community, and select one of them little between the in-problem community of mutual scrambler
District changes its scrambler.
Existing frequency (including dominant frequency and auxiliary frequency) and scrambler corrigendum are typically all and are completed by following operation:
Whether the first community from neighborhood region correlation chart lookup adnexa exists interference parameter；Or from map, select position
Put neighbor cell search, then verify change one by one.This operating process needs to be accomplished manually, and only for net
The community of network index error, is difficult to travel through whole communities, the most loaded down with trivial details and efficiency is low.
Additionally, prior art is after the scrambler and peripheral cell orienting certain community exists interference, need
Travel through other scrambler, attempt judging whether new scrambler there is also interference.This process is equivalent to this community again
Do once with frequency with disturbing, with frequency with scrambler group, with frequency with code dependency inspection.This operating process is the most numerous
Trivial, inefficiency and error-prone.
For example, when the subzone network scale number in a city is more than 1000, prior art needs
To modify the most one by one after community therein is verified one by one.During amendment,
In order to prevent continuing to produce interference, need 128 scramblers are traveled through the most one by one, until finding not little with periphery
There is the scrambling code value of interference in district's parameter.If in a cell periphery 1.5km, there is n co-frequency cell,
Need three kinds of interference types are respectively checked n time during verifying, respectively check n*(128-1 when arranging the stage)
Secondary (worst result), workload is extremely tedious.
As can be seen here, in prior art, verification process and the recommendation process of scrambler are carried out respectively, inefficient.
In recommendation process, need repeatedly to verify, the loaded down with trivial details redundancy of calculating process, lose time.Manually carry out core
The setting up procedure looked into is loaded down with trivial details, needs to expend a large amount of human time, and accuracy is low.And self-supervisory process
Recommend the value arranged all to randomly select, be unfavorable for unified planning reasonable distribution scrambler resource.
Summary of the invention
For solving cannot effectively arrange in prior art the technical problem of cell scrambling, the present invention proposes one
Plant the method to set up of cell scrambling, be applied in multicell network system, including:
Travel through all of verification community, it is judged that Target cell is the need of carrying out scrambler setting, and according to master
The scrambler verifying community that frequency is identical with described Target cell generates filtered list；
After all of verification community all travels through and terminates, if described Target cell needs to carry out scrambler setting,
From default scrambler group, then remove the scrambler in described filtered list, and have with the scrambler arranged
With group relation or the scrambler with dependency, using remaining scrambler as recommending scrambler group；
According to described recommendation scrambler group, the scrambler of described Target cell is configured.
Meanwhile, the invention allows for a kind of cell scrambling arranges equipment, is applied to multicell network system
In system, including:
Verify community judge module, be used for traveling through all of verification community, it is judged that Target cell the need of
Carry out scrambler setting, and generate screening according to the scrambler verifying community that dominant frequency is identical with described Target cell
List；
Recommend scrambler screening module, for after all of verification community all travels through and terminates, if described target
Community needs to carry out scrambler setting, then remove the scrambler in described filtered list from default scrambler group,
And with the scrambler arranged, there is same group of relation or the scrambler with dependency, using remaining scrambler as pushing away
Recommend scrambler group；
Cell scrambling arranges module, for entering the scrambler of described Target cell according to described recommendation scrambler group
Row is arranged.
By applying above technical scheme, carry out recommending scrambler while cell scrambling is verified
Select to arrange, it is recommended that the efficiency of scrambler and accuracy are high, it is to avoid by artificial, scrambler is screened
Complicated repeated labor, makes the quality of network be guaranteed.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the method to set up of a kind of cell scrambling that the present invention proposes；
Fig. 2 is the schematic flow sheet of the method to set up of a kind of cell scrambling that the specific embodiment of the invention proposes；
Fig. 3 is the structural representation of the equipment that arranges of a kind of cell scrambling that the present invention proposes.
Detailed description of the invention
For solving poor accuracy in the presence of the setting up procedure of prior art small area scrambler, inefficient
Problem, as it is shown in figure 1, the present invention proposes the method to set up of a kind of cell scrambling, is applied to multiple cell net
In network system, comprise the steps:
S101, travels through all of verification community, it is judged that Target cell the need of carrying out scrambler setting, and
Filtered list is generated according to the scrambler verifying community that dominant frequency is identical with described Target cell.
Concrete, in this step, will first determine whether that verification community is the most identical with the dominant frequency of Target cell,
If differing, then terminate the follow-up judgement flow process for this verification community.If identical, then need to verify
The scrambler record of community also adds to a filtered list, and this filtered list will be used for follow-up recommendation
Scrambler screens.
After completing above-mentioned flow process, whether Target cell and verifying can be existed between community with disturb interference,
Judge with scrambler group or with disturbing dependency interference, if, it is determined that this Target cell needs to disturb
Code is arranged, if it is not, then continue that the next one is verified community to re-start the judgement operation of this step.
It should be noted that before performing this step, in addition it is also necessary to the community included in network is carried out
Target cell and verify the setting of community, i.e. arranging in multiple community community, to be set to target little
District, owing to the interference of scrambler is scope, therefore can be by its in preset range around this Target cell
His community is set to verify community, and wherein, preset range can be configured according to practical situation, and this is not
Affect protection scope of the present invention.
S102, after all of verification community all travels through and terminates, if described Target cell needs to carry out scrambler
Arrange, then from default scrambler group, remove the scrambler in described filtered list, and with disturbing of arranging
Code has same group of relation or the scrambler with dependency, using remaining scrambler as recommending scrambler group.
Based on the filtered list generated in S101, and at the set scrambler crossed before, this step will
Scrambler in default scrambler group is screened, wherein by remove recorded in filtered list have identical
Each scrambler verifying community of dominant frequency, and there is same group of relation to scrambler set before or with relevant
Property scrambler, using remaining scrambler as recommend scrambler group.
S103, is configured the scrambler of described Target cell according to described recommendation scrambler group.
Hidden network danger is caused to carry in order to avoid arranging same scrambling code value in a large number in recommending setting up procedure at scrambler
Rise, the invention allows for equalizing the system of selection of scrambler distribution, thus ensure default scrambler group is respectively disturbed
The utilization rate of code remains basically stable.By taking the method randomly selected, the scrambling code value high for utilization rate gives
Relatively low random weight.Detailed process is as follows:
Due to final recommendation scrambler only one of which set by base station, therefore, first this step will obtain
Each scrambler in described recommendation scrambler group occupation proportion in a network, is that each scrambler sets according to occupation proportion
Put select probability, and ensure that the select probability corresponding to the scrambler that occupation proportion is higher is less than occupation proportion
The relatively low select probability corresponding to scrambler.After completing the distribution of probability selected above, can be based on described
Select probability selects to recommend scrambler in described recommendation scrambler group, carries out with the scrambler to described Target cell
Arrange.
After the setting completing cell scrambling, in addition it is also necessary to update each scrambler in network in time takies ratio
Example, thus arrange for the scrambler of other Target cells and basis for estimation accurately is provided.
Although above example by default scrambler group for illustrating as a example by descending pilot frequency code character, but need
It is noted that the present invention is not limited in applying in descending pilot frequency code character, other similar technology designs
And scheme belongs to protection scope of the present invention.
In order to the technological thought of the present invention is expanded on further, in conjunction with concrete application scenarios, to the present invention
Technical scheme illustrate.
As described in Figure 2, a kind of cell scrambling method to set up proposed by the specific embodiment of the invention, its
Specifically comprise the following steps that
S201, selects some community for verifying and arranging Target cell.
S202, travels through base station information table, therefrom selects the community in Target cell peripheral extent as verification
Community.
S203, it is judged that whether dominant frequency is identical with verifying community for Target cell, if the same goes to S204,
Continue judgement below；Otherwise go to S202, carry out the next retrieval verifying community.
S204, records the scrambler of this verification community, recommends for follow-up scrambler.
S205, it is judged that whether Target cell is with disturbing, with scrambler group or dry with disturbing dependency with verification community
Disturb, if there is then going to S206, otherwise go to S202, enter the next one and verify the retrieval of community.
S206, confirms that this Target cell needs to do scrambler change.
S207, it is judged that whether there is also the verification community do not retrieved in base station information table, be to go to S202,
No person goes to S208.
S208, it is judged that Target cell, the need of doing scrambler change, if needing change, proceeds to disturb
Code is recommended, and goes to S209, otherwise goes to S212.
S209, scrambler is recommended in screening.
Scrambler is recommended to screen for the first time: the scrambler not being recorded in selection course 4 from 128 scramblers；
Programmed screening: select will not have same group and disturbing with dependency with using scrambler from residue scrambler
Code.For recommending scrambler after twice screening.
S210, is chosen as the scrambler that community is arranged in recommending scrambler.
Randomly choose recommendation scrambler to be configured, and demonstrate changed content.First calculate current before recommendation
The scrambler accounting of the whole network, it is recommended that time use the method that randomly chooses, the scrambler that accounting is higher arranges less
Select probability, the most selected probability is relatively low.Profit can prevent scrambler setting from excessively concentrating in this way
Phenomenon.
S211, updates the scrambler accounting of the whole network.Recommend to prepare for next group scrambler.
Verify carrying out the whole network batch and in setting up procedure, need timely for new for the recommendation of Target cell scrambler
Automatically arrange, then carry out the verification process of next Target cell, by with new scrambler next time when verifying
It is worth as calculating the data judged.
S212, the verification process of target end community.
In order to realize object above, the invention also proposes a kind of cell scrambling arranges equipment, should
In multicell network system, as it is shown on figure 3, include:
Verify community judge module 310, be used for traveling through all of verification community, it is judged that whether Target cell needs
Scrambler setting to be carried out, and generate sieve according to the scrambler verifying community that dominant frequency is identical with described Target cell
Select list；
Recommend scrambler screening module 320, for after all of verification community all travels through and terminates, if described mesh
Mark community needs to carry out scrambler setting, then remove the scrambler in described filtered list from default scrambler group,
And with the scrambler arranged, there is same group of relation or the scrambler with dependency, using remaining scrambler as pushing away
Recommend scrambler group；
Cell scrambling arranges module 330, for according to the described recommendation scrambler group scrambler to described Target cell
It is configured.
In concrete application scenarios, also include:
Verify community and module 340 is set, be set to target for the community arranged in the plurality of community
Community, and be set to other communities in preset range around described Target cell verify community.
In concrete application scenarios, described verification community judge module 310, specifically for:
Judge that described verification community is the most identical with the dominant frequency of described Target cell, if identical, then by described
The scrambler verifying community adds to described filtered list, and judges described Target cell and described verification community
Between whether exist with disturb interference, with scrambler group or with disturb dependency disturb；
If, it is determined that described Target cell needs to carry out scrambler setting.
In concrete application scenarios, described cell scrambling arranges module 330, specifically for:
Obtain the occupation proportion in a network of each scrambler in described recommendation scrambler group, and be described each scrambler
Arranging select probability, the select probability that the scrambler that makes occupation proportion higher is corresponding is relatively low less than occupation proportion
The select probability that scrambler is corresponding；
Select probability based on each scrambler in described recommendation scrambler group selects to recommend scrambler, with to described mesh
The scrambler of mark community is configured.
In concrete application scenarios, also include:
Cell scrambling more new module 350, for carrying out more described each scrambler occupation proportion in a network
Newly.
In concrete application scenarios, described default scrambler group is descending pilot frequency code character.
By applying above technical scheme, carry out recommending scrambler while cell scrambling is verified
Select to arrange, it is recommended that efficiency and accuracy are high, it is to avoid by manually scrambler is screened complicated heavy
Renaturation is worked, and makes the quality of network be guaranteed.
Through the above description of the embodiments, those skilled in the art is it can be understood that arrive this
Bright can be realized by hardware, it is also possible to the mode of the general hardware platform adding necessity by software realizes.
Based on such understanding, technical scheme can embody with the form of software product, and this is soft
Part product can be stored in a non-volatile memory medium, and (can be CD-ROM, USB flash disk, movement be hard
Dish etc.) in, including some instructions with so that a computer equipment (can be personal computer, take
Business device, or the network equipment etc.) each implements the method described in scene to perform the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is a schematic diagram being preferable to carry out scene, in accompanying drawing
Module or flow process not necessarily implement necessary to the present invention.
It will be appreciated by those skilled in the art that the module in the device implemented in scene can be according to implementing scene
Describe and carry out being distributed in the device implementing scene, it is also possible to carry out respective change and be disposed other than this enforcement
In one or more devices of scene.The module of above-mentioned enforcement scene can merge into a module, it is possible to
To be further split into multiple submodule.
The invention described above sequence number, just to describing, does not represent the quality implementing scene.
The several scenes that are embodied as being only the present invention disclosed above, but, the present invention is not limited to
This, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (8)
1. a method to set up for cell scrambling, is applied in multicell network system, it is characterised in that
Including:
Travel through all of verification community, it is judged that Target cell is the need of carrying out scrambler setting, and according to master
The scrambler verifying community that frequency is identical with described Target cell generates filtered list；
After all of verification community all travels through and terminates, if described Target cell needs to carry out scrambler setting,
From default scrambler group, then remove the scrambler in described filtered list, and have with the scrambler arranged
With group relation or the scrambler with dependency, using remaining scrambler as recommending scrambler group；
According to described recommendation scrambler group, the scrambler of described Target cell is configured；
Wherein, described traversal all of verification community, it is judged that Target cell the need of carrying out scrambler setting,
And generate filtered list according to the scrambler verifying community that dominant frequency is identical with described Target cell, particularly as follows:
Judge that described verification community is the most identical with the dominant frequency of described Target cell, if identical, then by described
The scrambler verifying community adds to described filtered list, and judges described Target cell and described verification community
Between whether exist same scrambler group or with disturb dependency interference；
If, it is determined that described Target cell needs to carry out scrambler setting；
According to described recommendation scrambler group, the scrambler of described Target cell is configured, particularly as follows:
Obtain the occupation proportion in a network of each scrambler in described recommendation scrambler group, and be described each scrambler
Select probability is set, makes the scrambler that the select probability of the scrambler that occupation proportion is higher is relatively low less than occupation proportion
Select probability；
Select probability based on each scrambler in described recommendation scrambler group selects to recommend scrambler, with to described mesh
The scrambler of mark community is configured.
2. the method for claim 1, it is characterised in that before traveling through all of verification community,
Also include:
In the plurality of community community is set and is set to Target cell, and by described Target cell week
Enclose other communities in preset range to be set to verify community.
3. the method for claim 1, it is characterised in that according to described recommendation scrambler group to institute
State after the scrambler of Target cell is configured, also include:
Described each scrambler occupation proportion in a network is updated.
4. the method as described in any one of claim 1-3, it is characterised in that
Described default scrambler group is descending pilot frequency code character.
5. cell scrambling an equipment is set, be applied in multicell network system, it is characterised in that
Including:
Verify community judge module, be used for traveling through all of verification community, it is judged that Target cell the need of
Carry out scrambler setting, and generate screening according to the scrambler verifying community that dominant frequency is identical with described Target cell
List；
Recommend scrambler screening module, for after all of verification community all travels through and terminates, if described target
Community needs to carry out scrambler setting, then remove the scrambler in described filtered list from default scrambler group,
And with the scrambler arranged, there is same group of relation or the scrambler with dependency, using remaining scrambler as pushing away
Recommend scrambler group；
Cell scrambling arranges module, for entering the scrambler of described Target cell according to described recommendation scrambler group
Row is arranged；
Wherein, described verification community judge module, specifically for:
Judge that described verification community is the most identical with the dominant frequency of described Target cell, if identical, then by described
The scrambler verifying community adds to described filtered list, and judges described Target cell and described verification community
Between whether exist same scrambler group or with disturb dependency interference；
If, it is determined that described Target cell needs to carry out scrambler setting；
Described cell scrambling arranges module, specifically for:
Obtain the occupation proportion in a network of each scrambler in described recommendation scrambler group, and be described each scrambler
Arranging select probability, the select probability that the scrambler that makes occupation proportion higher is corresponding is relatively low less than occupation proportion
The select probability that scrambler is corresponding；
Select probability based on each scrambler in described recommendation scrambler group selects to recommend scrambler, with to described mesh
The scrambler of mark community is configured.
6. equipment as claimed in claim 5, it is characterised in that also include:
Verifying community and arrange module, for arranging a community in the plurality of community, to be set to target little
District, and be set to other communities in preset range around described Target cell verify community.
7. equipment as claimed in claim 5, it is characterised in that also include:
Cell scrambling more new module, for being updated described each scrambler occupation proportion in a network.
8. the method as described in any one of claim 5-7, it is characterised in that
Described default scrambler group is descending pilot frequency code character.
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| CN201310451025.9A CN103491552B (en) | 2013-09-25 | 2013-09-25 | A kind of cell scrambling method to set up and equipment |
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| CN201310451025.9A CN103491552B (en) | 2013-09-25 | 2013-09-25 | A kind of cell scrambling method to set up and equipment |
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| CN103491552B true CN103491552B (en) | 2016-08-17 |
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| CN104796216B (en) * | 2015-03-31 | 2018-05-01 | 上海大唐移动通信设备有限公司 | A kind of scrambling code distribution method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102752812A (en) * | 2011-04-21 | 2012-10-24 | 中国移动通信集团广东有限公司 | Method and device for distributing frequency scrambles |
| CN102892133A (en) * | 2012-07-20 | 2013-01-23 | 华中科技大学 | Method for optimizing master frequencies and scrambling codes of time division-code division multiple access (TD-CDMA) network base station based on genetic algorithm |
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|---|---|---|---|---|
| BRPI0419219B1 (en) * | 2004-12-01 | 2018-06-26 | Telecom Italia S.P.A. | Methods for assigning scrambling codes to cells of a CDMA cellular mobile communication network and for designing a CDMA cellular mobile communication network, and computer readable storage media |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102752812A (en) * | 2011-04-21 | 2012-10-24 | 中国移动通信集团广东有限公司 | Method and device for distributing frequency scrambles |
| CN102892133A (en) * | 2012-07-20 | 2013-01-23 | 华中科技大学 | Method for optimizing master frequencies and scrambling codes of time division-code division multiple access (TD-CDMA) network base station based on genetic algorithm |
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