CN101895909B - Method and device for detecting pseudo-noise sequence confusion - Google Patents
Method and device for detecting pseudo-noise sequence confusion Download PDFInfo
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- CN101895909B CN101895909B CN201010222770.2A CN201010222770A CN101895909B CN 101895909 B CN101895909 B CN 101895909B CN 201010222770 A CN201010222770 A CN 201010222770A CN 101895909 B CN101895909 B CN 101895909B
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Abstract
The invention discloses a method and a device for detecting pseudo-noise sequence confusion. The method comprises the following steps of: acquiring switching data of users between cells in a network; generating a switching relationship set between the cells in the network by using the switching data; in the switching relationship set, generating a confusion set according to the dropped call rate of the switching relationship; and in the confusion set, detecting whether a target cell has PN sequence confusion according to a bridging cell used when the target cell is added into an activation set by a source cell in the switching relationship. By using the method and the device, the accuracy for determining the PN confusion is improved.
Description
Technical field
The present invention relates to the communications field, method and the device in particular to a kind of detection pseudo noise (Pseudo-noise, referred to as PN), obscured.
Background technology
In the wireless communication networks of code division multiple access (Code Division Multiple Access, referred to as CDMA) standard, PN short code is for front backward channel quadrature modulation, and short code length is 215, with 15 bits, represents.In forward channel, different base stations identifies different base stations by different PN short codes, and each PN differs 64 chips (chip), therefore always has 512 different PN.And in the network planning, for fear of signal delay, cause PN to obscure, and the PN numerical value of adjacent base station often needs interval PN_INC, and PN_INC gets 2 or 3 conventionally, causes so actual operable PN still less.Therefore must to use PN multiplexing in the network planning, use within the specific limits the different different base stations of PN short code sign, and base station outside distance relatively far apart just can reuse identical PN short code, the signal that need to guarantee them does not overlap and covers the interference that causes confusion.
In real network planning, for city, or some regions with a varied topography, when base station distribution comparatively intensive, because available PN is limited, so the multiplexing distance of PN is often shorter, the inevitable like this area covered that there will be, cause in some region of network, pilot signal with PN can cover, and in network configuration, for certain PN, Yi Ge community can only configure an adjacent area, is therefore easy to the phenomenon that occurs that PN obscures.Terminal Active Set is in such region, when finding this PN pilot signal, can find Target cell to do switching according to the adjacent area of network planning configuration adds, but in fact, this Target cell may not be the community of transmitting pilot signal, the adjacent area adding when switching adds mistake, will cause disturbing, even call drop.
In correlation technique, conventionally by drive test data in conjunction with signalling analysis, by experience, find that Target cell exists PN to obscure, such method efficiency is lower and accuracy is not high.
Summary of the invention
Main purpose of the present invention is to provide a kind of method and device of pseudo-noise sequence confusion, to solve the above problems.
To achieve these goals, according to an aspect of the present invention, provide a kind of method of the PN of detection sequence confusion.
According to the method for detection PN sequence confusion of the present invention, comprise: the switch data that obtains user between network small area; Use handoff relation set between switch data generating network small area; In handoff relation set, according to the cutting off rate of handoff relation, generate and obscure set; In obscuring set, whether the bridging cell detection Target cell of using while Target cell being added to Active Set according to cell-of-origin in handoff relation there is PN sequence confusion.
Further, in handoff relation set, according to the cutting off rate generation of handoff relation, obscure set and comprise: search the handoff relation between same cell-of-origin and a plurality of Target cells of identical PN value; Whether the cutting off rate of the handoff relation that judgement finds is greater than the cutting off rate that system arranges; If judgment result is that to be, handoff relation be placed into and obscured in set.
Further, in obscuring set, whether the bridging cell detection Target cell of using while Target cell being added to Active Set according to cell-of-origin in handoff relation exists PN sequence confusion to comprise: if bridging community is the community of Active Set simultaneously, judge whether Target cell is the neighbor cell of bridging community; If judgment result is that to be, determine that Target cell exists PN sequence confusion.
Further, before generating according to the cutting off rate of handoff relation and obscuring set, said method also comprises: according to handoff relation place, whether call out call drop, the number of times of statistics handoff relation normal call and call out the number of times of call drop; Determine that the number of times of normal call and the number of times sum of calling call drop are total number of calls; The number of times of determining calling call drop is cutting off rate with the ratio of total number of calls.
Further, after whether detection Target cell exists PN sequence confusion, also comprise: if definite, have PN sequence confusion, revise the PN value of the Target cell that has PN sequence confusion.
To achieve these goals, according to another aspect of the present invention, provide a kind of device of the PN of detection sequence confusion.
According to the device of detection PN sequence confusion of the present invention, comprise: acquisition module, for obtaining the switch data of user between network small area; The first generation module, for being used handoff relation set between switch data generating network small area; The second generation module, in handoff relation set, generates and obscures set according to the cutting off rate of handoff relation; Detection module, for obscuring set, whether the bridging cell detection Target cell of using while Target cell being added to Active Set according to cell-of-origin in handoff relation there is PN sequence confusion.
Further, the second generation module comprises: search submodule, for searching the handoff relation between same cell-of-origin and a plurality of Target cells of identical PN value; The first judgement submodule, for judging whether the cutting off rate of the handoff relation finding is greater than the cutting off rate that system arranges; Place submodule, judgment result is that be in the situation that, for handoff relation, be placed into and obscure set.
Further, detection module comprises: the second judgement submodule, if bridging community is the community of Active Set simultaneously, for judging whether Target cell is the neighbor cell of bridging community; PN obscures definite submodule, if judgment result is that, is to have PN sequence confusion for definite Target cell.
Further, said apparatus also comprises computing module, and it comprises: statistics submodule, and for whether call out call drop according to handoff relation place, the number of times of statistics handoff relation normal call and call out the number of times of call drop; Total number of calls is determined submodule, for determining that the number of times of normal call and the number of times sum of calling call drop are total number of calls; Cutting off rate is determined submodule, and the number of times of calling out call drop for determining is cutting off rate with the ratio of total number of calls.
Further, said apparatus also comprises modified module, determining while there is PN sequence confusion, for revising the PN value of the Target cell that has PN sequence confusion.
By the present invention, adopt the switch data that obtains user between network small area; Use described switch data to generate handoff relation set between described network small area; In described handoff relation set, according to the cutting off rate of handoff relation, generate and obscure set; Described, obscure in set, according to Target cell described in the bridging cell detection of Target cell in described handoff relation, whether there is PN sequence confusion, solved in correlation technique by drive test data in conjunction with signalling analysis, by experience, find that Target cell exists PN to obscure the problem that efficiency is lower and accuracy is not high, has improved the accuracy that definite PN obscures.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the flow chart of the method for the detection PN sequence confusion of the embodiment of the present invention;
Fig. 2 is according to the structured flowchart of the device of the detection PN sequence confusion of the embodiment of the present invention;
Fig. 3 is according to the preferred structured flowchart of the device of the detection PN sequence confusion of the embodiment of the present invention;
Fig. 4 is structured flowchart according to the preferred embodiment of the invention; And
Fig. 5 is the flow chart that detects according to the preferred embodiment of the invention the method for PN sequence confusion.
Embodiment
Hereinafter with reference to accompanying drawing, also describe the present invention in detail in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
Embodiment mono-
A kind of method of the PN of detection sequence confusion is provided in the present embodiment.Fig. 1 is according to the flow chart of the method for the detection PN sequence confusion of the embodiment of the present invention, as shown in Figure 1, comprising:
Step S102, obtains the switch data of user between network small area;
Step S104, is used handoff relation set between switch data generating network small area;
Step S106, in handoff relation set, generates and obscures set according to the cutting off rate of handoff relation;
Step S108, in obscuring set, whether the bridging cell detection Target cell of using while Target cell being added to Active Set according to cell-of-origin in handoff relation there is PN sequence confusion.
Pass through above-mentioned steps, according to the bridging cell detection Target cell of Target cell in handoff relation, whether there is PN sequence confusion, avoided using drive test data in conjunction with signalling analysis in correlation technique, by experience, find that Target cell exists PN to obscure the problem of existence, has improved the accuracy that definite PN obscures.
Below the cutting off rate according to handoff relation in step S106 is generated and obscures of set and preferred embodiment describe.In this preferred implementation, can first search the handoff relation between same cell-of-origin and a plurality of Target cells of identical PN value; Whether the cutting off rate of the handoff relation that then, judgement finds is greater than the cutting off rate that system arranges; If judgment result is that to be, handoff relation be placed into and obscured in set.By the determining step of this preferred embodiment, can to the handoff relation of obscuring in set, filter according to cutting off rate, thereby can obtain the set of obscuring that all doubtful PN obscure.
It should be noted that, in the handoff relation of all communities, if existing same (Active Set) community to switch has added with two of the PN handoff relation that different Target cells is such, and the correct degree of the handoff relation of this Active Set community and these two Target cells is not absolutely, has the situation of call drop.These two Target cells that this Active Set community adds may exist PN to obscure.
Preferably, step S108 comprises: in obscuring set, whether bridging cell detection Target cell used while Target cell being added to Active Set according to cell-of-origin in handoff relation exists PN sequence confusion to comprise: if bridging community is the community of Active Set simultaneously, judge whether Target cell is the neighbor cell of bridging community; If judgment result is that to be, determine that Target cell exists PN sequence confusion.By this preferred embodiment, by the handoff relation of obscuring in set is deleted to choosing further, the neighbor cell that is whether bridging community by Target cell determines that PN obscures community, has improved the accuracy of definite PN sequence.
It should be noted that, because Yi Ge community can only configure an adjacent area to certain PN, those two the different target communities with PN are not necessarily configured to the adjacent area of this community so, can only put up a bridge to switch by other communities of Active Set to join Active Set.Therefore,, if there is bridging Na Liangge community in Active Set simultaneously, those two the different target communities with PN just likely exist PN to obscure.
Preferably, before step S106, said method also comprises: according to handoff relation place, whether call out call drop, the number of times of statistics handoff relation normal call and call out the number of times of call drop; Determine that the number of times of normal call and the number of times sum of calling call drop are total number of calls; The number of times of determining calling call drop is cutting off rate with the ratio of total number of calls.By this preferred embodiment, realized the calculating of handoff relation cutting off rate.
Preferably, after step S108, said method also comprises: if definite, have PN sequence confusion, revise the PN value of the Target cell that has PN sequence confusion.By this preferred embodiment, after definite PN sequence confusion, revise the PN value of the Target cell of PN sequence confusion, improved network optimizing performance.
Embodiment bis-
The present embodiment combines embodiment mono-and preferred implementation wherein, a kind of device of the PN of detection sequence confusion is provided in the present embodiment, Fig. 2 is according to the structured flowchart of the device of the detection PN sequence confusion of the embodiment of the present invention, as shown in Figure 2, this device comprises: acquisition module 22, the first generation module 24, the second generation module 26 and detection module 28, be described in detail said structure below:
Acquisition module 22, for obtaining the switch data of user between network small area; The first generation module 24, is connected to acquisition module 22, for using acquisition module 22 to get to obtain handoff relation set between switch data generating network small area; The second generation module 26, is connected to the first generation module 24, and the handoff relation set for generating at the first generation module 24, generates and obscure set according to the cutting off rate of handoff relation; Detection module 28, is connected to the second generation module 26, and for the set of obscuring generating at the second generation module 26, whether the bridging cell detection Target cell of using while Target cell being added to Active Set according to cell-of-origin in handoff relation exists PN sequence confusion.
In correlation technique, conventionally by drive test data in conjunction with signalling analysis, by experience, find that Target cell exists PN to obscure, such method efficiency is lower and accuracy is not high, pass through the embodiment of the present invention, acquisition module 22 obtains the switch data of user between network small area, use handoff relation set between switch data generating network small area, and generate and obscure set according to the cutting off rate of handoff relation, detection module 28 and then whether have PN sequence confusion according to the bridging cell detection Target cell of Target cell in handoff relation, improved the accuracy that definite PN obscures.
Fig. 3 is according to the preferred structured flowchart of the device of the detection PN sequence confusion of the embodiment of the present invention, as shown in Figure 3, this device also comprises: computing module 32 and modified module 34, the second generation module 26 comprises: search submodule 262, the first judge module 264, place submodule 266, detection module 28 comprises: the second judgement submodule 282 and PN obscure and determine submodule 284, below said structure are described in detail:
The second generation module 26 comprises: search submodule 262, for searching the handoff relation between same cell-of-origin and a plurality of Target cells of identical PN value; The first judgement submodule 264, is connected to and searches submodule 262, and whether the cutting off rate of searching the handoff relation that submodule 262 finds for judging is greater than the cutting off rate that system arranges; Place submodule 266, be connected to the first judgement submodule 264, the in the situation that of for judgment result is that at the first judgement submodule 264 being, handoff relation is placed into and is obscured in set.By the preferred embodiment, the handoff relation of all communities is checked, so can obtain the set of obscuring that all doubtful PN obscure.
Preferably, detection module 28 comprises: the second judgement submodule 282, if bridging community is the community of Active Set simultaneously, for judging whether Target cell is the neighbor cell of bridging community; PN obscures determination module 284, is connected to the second judgement submodule 282, is, for determining that Target cell exists PN sequence confusion if the second judgement submodule 282 judgment result is that.
By this preferred embodiment, by the handoff relation of obscuring in set is deleted to choosing further, the neighbor cell that is whether bridging community by Target cell determines that PN obscures community, has improved the accuracy of definite PN sequence.
Preferably, said apparatus also comprises computing module 32, and it comprises: statistics submodule 322, and for whether call out call drop according to handoff relation place, the number of times of statistics handoff relation normal call and call out the number of times of call drop; Total number of calls is determined submodule 324, is connected to statistics submodule 322, for determining that the number of times of normal call and the number of times sum of calling call drop are total number of calls; Cutting off rate is determined submodule 326, is connected to statistics submodule 322 and total number of calls is determined submodule 324, and the number of times of calling out call drop for determining is cutting off rate with the ratio of total number of calls.
Modified module 34, is connected to PN and obscures determination module 284, obscures determination module 284 and determines while there is PN sequence confusion, for revising the PN value of the Target cell that has PN sequence confusion at PN.
Embodiment tri-
The present embodiment provides in a kind of real system and has realized and detect the hardware preferred implementation that PN obscures, Fig. 4 is the preferred structure block diagram according to the embodiment of the present invention, as shown in Figure 4, comprise: base station 42, data acquisition server 44, data analysis machine 46, operating maintenance module (Operation Maintenance Module, referred to as OMM) server 48.It should be noted that, data acquisition server 44 is for the function of the acquisition module 22 of execution graph 2, and data analysis machine 46 is for the function of the detection module 26 of execution graph 2, and OMM server 48 is for the function of the modified module 34 of execution graph 3.Below this structure is described in detail:
Base station 42, for the treatment of each road terminal call and handover request, until end of calling is reported to data acquisition server 44 by calling and handover information;
Data acquisition server 44, is connected to base station 42, for collecting and store the handover information of all-calls;
Data analysis machine 46, to connecting OMM server and connection data acquisition server 44, for obtaining the neighbor cell configuration information of system and generating handoff relation combination from all-calls and handover information, by evaluation algorithm, the set of cells that generation may exist PN to obscure, and analyze these communities and whether really exist PN to obscure, generate analysis result, with reference to the PN configuration of current all communities, the modification of PN is carried out in two TongPN communities, guarantee that the PN of community does not occur multiplexing within limits.And amended configuration data is sent to OMM server.In real system, data analysis machine can pass through PC (Personal computer, referred to as PC) to be realized.
OMM server 48, is connected to data analysis machine 46, for the neighbor cell configuration information of system is provided to data analysis machine 46, and the neighbor cell configuration data after synchronously upgrading is sent to base station system.
Embodiment tetra-
The present embodiment combines the technical scheme of above-mentioned each embodiment and preferred implementation thereof, and Fig. 5 is the flow chart that detects according to the preferred embodiment of the invention the method for PN sequence confusion, as shown in Figure 5, comprising:
Step S402, data analysis machine 46 is according to original call and switch data in data acquisition server 44, by calling out each time each community of switching each time, decompose out, metered call number, switches sequence number, community CI, Active Set community whether, whether reference cell, joined the information such as Active Set after switching, and whether record calling is each time that wireless environment causes call drop;
For example, the all-calls in network and switch data are reported and gather and preserve.Can obtain like this period of time interior (for example, 3 to 5 days) calling and switch data, these data are added up, handoff relation between two between all communities in generating network (be Active Set community switch add candidate set cells), and according to the calling of switching place call drop whether, and the ratio of call drop, can assess the correct degree of the handoff relation between Liang Ge community.
It should be noted that, in this step, base station is recorded each road calling handover information and is reported to data acquisition server 44 preservations.
Step S404, all switching cells information that data analysis machine 46 generates according to step S402, combination with cell-of-origin (with reference to community, PN place or pilot tone Qiang community) and Target cell (the joining the community of Active Set after switching) of once switching, generates handoff relation set with call;
For example: from the handover information the inside of preserving, statistics is switched the handoff relation <S between community (hereinafter referred Target cell) T that joins Active Set after Active Set pilot frequency intensity Qiang community or community, REF_PN place (hereinafter referred cell-of-origin) S and switching each time, T>, thereby generate handoff relation set <Si, Tj>.And according to handoff relation <Si, call drop is called out finally in Tj> place whether, statistics <Si, the number of times of Tj> normal call and the number of times of calling out call drop, obtain this handoff relation <Si, the cutting off rate of Tj>.
Step S406, data analysis machine 46 is searched in all handoff relation combinations, for the identical all combinations of cell-of-origin A, if its Target cell Bi is different with Bj but PN is identical, and wherein have at least switching combining to call out call drop and surpassed thresholding, so such one group of switching combining ABi and ABj are joined to PN to be analyzed and obscure in record.With the method, find and respectively organize same target cell, cell-of-origin with the handoff relation of PN.
For example: at handoff relation set <Si, in Tj>, in each handoff relation for same cell-of-origin, if there is the different target community that a plurality of PN are identical, and in these switching combining, have the situation of calling out call drop, the PN of these Target cells likely produces and obscures.; at handoff relation set <Si, inside Tj>, search all handoff relation <A of identical sources community A; Bi> and <A, Bj> (i ≠ j; I, j=1,2,3......), and <A, Bi> and <A, Bj> meets following condition: the PN of Target cell Bi and Bj is identical, and <A, Bi> or <A, the call drop ratio of Bj> surpasses thresholding.
It should be noted that, the lookup result by above-mentioned condition to handoff relation set, each group obtaining is with the handoff relation of PN, is exactly further to judge whether the analysis set that really exists PN to obscure.
Step S408, travel through PN to be analyzed and obscure record, switching combining ABi and ABj for each group same target cell, cell-of-origin with PN, in the handoff relation set generating in step S404 step, search whether have AXi and AXj handoff relation, if there is no, continue to analyze next group same target cell, cell-of-origin with the switching combining of PN; Otherwise execution step S410;
It should be noted that, A can only configure Bi or Bj, and one of them is adjacent area, ought there is <A so, Bi> combination and <A, in the time of Bj> combination, all put up a bridge and joined in Active Set by other communities in HeBj community, Bi community.There is <A, Xi> combination, and Xi cell configuration LiaoBi community is adjacent area; , there is <A in same reason, Xj> combination, and Xj cell configuration LiaoBj community is adjacent area.
Step S410, in the switching cell information generating at step S402, search, whether exist Xi and Xj simultaneously for combining with the Active Set once switching with call, if there is no, get back to step S408, continue to analyze next group same target cell, cell-of-origin with the switching combining of PN, otherwise execution step S412;
For example, search handoff relation set and system neighbor cell configuration, obtain all { Xi} and { Xj} set of cells that meet above-mentioned condition.
Step S412, checks system neighbor cell configuration data, and whether having Xi configuration Bi is adjacent area, and Xj configuration Bj is adjacent area, and if there is no, execution step S408, continues to analyze next group same target cell, cell-of-origin with the switching combining of PN, otherwise execution step S414;
For example: according to base station, record each road and call out handover information, when meeting following condition, the PN of HeBj community, Bi community obscures, need to revise the PN of BiHuo Bj community: in same once switching, Xi and Xj are Active Set community simultaneously, and HeBj community, QieBi community has joined Active Set after switching.
Step S414, judgement bridging community and Target cell are that same call is with the situation of the Active Set community of once switching, if judgment result is that, be, record is when A is cell-of-origin, Bi and Bj are that the PN of Target cell obscures, if the determination result is NO, execution step S408, continues to analyze next group same target cell, cell-of-origin with the switching combining of PN;
Step S416, PN to be analyzed obscures record traversal and finishes, and output PN obscures analysis result.
Step S418, output PN confusion result;
Step S420, judges whether PN obscures is empty, if the determination result is NO, execution step S422, is that flow process finishes if judgment result is that;
Step S422, for PN confusion result, calculates new PN modification, the PN of the Target cell that modification PN obscures;
Step S424, is updated to amended PN in system by OMM server sync.
Step S426, gathers the call data of some days again, and the PN that carries out a new cycle obscures detection.
By the present embodiment, utilize the statistics of calling network and switching to carry out the judgement that PN obscures, judge the community that exists PN to obscure in network, instruct network optimization to carry out the modification of community PN, realized the accurate detection of the Target cell that PN is obscured.
By the above embodiments of the present invention, by obtaining the switch data of user between network small area, thereby detect the community that exists PN to obscure in network, and guide network optimization to carry out the modification of community PN.The accurate detection of the Target cell that realization is obscured PN, has improved system network dominance energy.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out shown or described step with the order being different from herein, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. a method that detects pseudo noise PN sequence confusion, is characterized in that, comprising:
Obtain the switch data of user between network small area;
Use described switch data to generate handoff relation set between described network small area;
In described handoff relation set, according to the cutting off rate of handoff relation, generate and obscure set;
Described, obscure in set, whether Target cell there is PN sequence confusion described in the bridging cell detection of using when cell-of-origin adds Active Set by Target cell in described handoff relation,
Wherein, in described handoff relation set, according to the cutting off rate generation of described handoff relation, obscure set and comprise:
Search the handoff relation between same cell-of-origin and a plurality of Target cells of identical PN value;
Whether the cutting off rate of the handoff relation finding described in judgement is greater than the cutting off rate that system arranges;
If judgment result is that to be, described in described handoff relation being placed into, obscure in set;
Described, obscure in set, whether Target cell exists PN sequence confusion to comprise described in the bridging cell detection of using when cell-of-origin adds described Active Set by Target cell in described handoff relation:
If described bridging community is the community of described Active Set simultaneously, judge whether described Target cell is the neighbor cell of described bridging community;
If judgment result is that to be, determine that described Target cell exists PN sequence confusion.
2. method according to claim 1, is characterized in that, before obscuring set according to the cutting off rate generation of handoff relation, also comprises:
According to described handoff relation place, whether call out call drop, add up the number of times of described handoff relation normal call and call out the number of times of call drop;
Determine that the number of times of described normal call and the number of times sum of described calling call drop are total number of calls;
Determine that the number of times of described calling call drop and the ratio of described total number of calls are described cutting off rate.
3. method according to claim 1, is characterized in that, after whether the described Target cell of detection exists PN sequence confusion, also comprises:
If determine and have described PN sequence confusion, revise the PN value of the Target cell of the described PN of existence sequence confusion.
4. a device that detects pseudo noise PN sequence confusion, is characterized in that, comprising:
Acquisition module, for obtaining the switch data of user between network small area;
The first generation module, for being used described switch data to generate handoff relation set between described network small area;
The second generation module, in described handoff relation set, generates and obscures set according to the cutting off rate of described handoff relation;
Detection module, for obscuring set described, whether Target cell there is PN sequence confusion described in the bridging cell detection of using when cell-of-origin adds Active Set by Target cell in described handoff relation,
Wherein, described the second generation module comprises:
Search submodule, for searching the handoff relation between same cell-of-origin and a plurality of Target cells of identical PN value;
Whether the first judgement submodule, be greater than for the cutting off rate of the handoff relation that finds described in judging the cutting off rate that system arranges;
Place submodule, judgment result is that be in the situation that, described in being placed into for described handoff relation, obscure set;
Described detection module comprises:
The second judgement submodule, if described bridging community is the community of described Active Set simultaneously, for judging whether described Target cell is the neighbor cell of described bridging community;
PN obscures definite submodule, if judgment result is that, is to have PN sequence confusion for definite described Target cell.
5. device according to claim 4, is characterized in that, described detection module comprises:
The second judgement submodule, if described bridging community is the community of described Active Set simultaneously, for judging whether described Target cell is the neighbor cell of described bridging community;
PN obscures definite submodule, if judgment result is that, is to have PN sequence confusion for definite described Target cell.
6. device according to claim 4, is characterized in that, also comprises computing module, and it comprises:
Statistics submodule, for whether call out call drop according to described handoff relation place, adds up the number of times of described handoff relation normal call and calls out the number of times of call drop;
Total number of calls is determined submodule, for determining that the number of times of described normal call and the number of times sum of described calling call drop are total number of calls;
Cutting off rate is determined submodule, for determining that the number of times of described calling call drop and the ratio of described total number of calls are described cutting off rate.
7. device according to claim 4, is characterized in that, also comprises:
Modified module, determining while there is described PN sequence confusion, for revising the PN value of the Target cell of the described PN of existence sequence confusion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010222770.2A CN101895909B (en) | 2010-06-30 | 2010-06-30 | Method and device for detecting pseudo-noise sequence confusion |
| PCT/CN2010/078845 WO2012000274A1 (en) | 2010-06-30 | 2010-11-17 | Method and apparatus for detecting pseudo-noise sequence confusion |
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| CN201010222770.2A CN101895909B (en) | 2010-06-30 | 2010-06-30 | Method and device for detecting pseudo-noise sequence confusion |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6049564A (en) * | 1997-04-28 | 2000-04-11 | Northern Telecom Limited | Method and apparatus for configuring PN-offsets for a non-uniform CDMA cellular network |
| CN101137173A (en) * | 2007-05-18 | 2008-03-05 | 中兴通讯股份有限公司 | Adjacent cell mixture checking method |
| CN101742604A (en) * | 2009-12-10 | 2010-06-16 | 中兴通讯股份有限公司 | Method and device for identifying adjacent pseudo-random code confusion |
-
2010
- 2010-06-30 CN CN201010222770.2A patent/CN101895909B/en not_active Expired - Fee Related
- 2010-11-17 WO PCT/CN2010/078845 patent/WO2012000274A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6049564A (en) * | 1997-04-28 | 2000-04-11 | Northern Telecom Limited | Method and apparatus for configuring PN-offsets for a non-uniform CDMA cellular network |
| CN101137173A (en) * | 2007-05-18 | 2008-03-05 | 中兴通讯股份有限公司 | Adjacent cell mixture checking method |
| CN101742604A (en) * | 2009-12-10 | 2010-06-16 | 中兴通讯股份有限公司 | Method and device for identifying adjacent pseudo-random code confusion |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012000274A1 (en) | 2012-01-05 |
| CN101895909A (en) | 2010-11-24 |
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