CN101222729B - Network optimization alarm method and apparatus based on drive test data - Google Patents

Network optimization alarm method and apparatus based on drive test data Download PDF

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Publication number
CN101222729B
CN101222729B CN2007100045356A CN200710004535A CN101222729B CN 101222729 B CN101222729 B CN 101222729B CN 2007100045356 A CN2007100045356 A CN 2007100045356A CN 200710004535 A CN200710004535 A CN 200710004535A CN 101222729 B CN101222729 B CN 101222729B
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network
drive test
common control
physical channel
predetermined threshold
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CN101222729A (en
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马毅华
刘学斌
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ZTE Corp
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ZTE Corp
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Abstract

The invention provides a drive test data based network optimization alarm method which comprises the following: step one; mobile phone testing based drive test system reports measured PCCPCH RSCP of a service cell, PCCPCH RSCP of each same frequency inter-cell and PCCPCH C/I of the service cell on each drive test point; step two, index D is calculated according to a predetermined formula; step three, the index D calculated in the step two is compared with a preset threshold value, under the condition that the index D is more than the preset threshold value, alarm information that uncontrolledsame frequency interference exists at corresponding drive test points is generated. In addition, the invention also provides a drive test data based network optimization alarm device. Through the technical proposal, the invention has the advantages that: network optimization work of large-scale networks is made to be more feasible and high efficient, and better quality is guaranteed at the same time.

Description

Network optimization alarm method and device based on drive test data
Technical field
The present invention relates to wireless communication technology field, more particularly, relate in a kind of TD-SCDMA (Time Division-Synchronous Code Division MultipleAccess, TD SDMA insert) system network optimization alarm method and device based on drive test data.
Background technology
At TD-SCDMA (Time Division-Synchronous Code DivisionMultiple Access, the TD SDMA access) in the actual networking of system, homogeneous-frequency adjacent-domain is not optimized, detection, analysis and the solution of critical network problems such as pilot pollution, area covered are the important topics of the TD-SCDMA network optimization frequently together, and the drive test data by testing mobile phone to come the phase-split network optimization problem be a kind of very important solution, in actual sets network optimization process, play very crucial effect.
The TD-SCDMA network is because the existence of " problem of co-channel interference ", homogeneous-frequency adjacent-domain is not optimized, will be produced uncontrolled interference with problems such as frequency pilot pollution, co-frequency cell area covereds in network, influences the capacity of diverse network performance index and TD-SCDMA network.The networking initial stage of TD-SCDMA network, drive test is that the TD-SCDMA network condition is grasped and one of the topmost network optimization means understood, analysis by road test data, to the adjacent area lose, network problem such as pilot pollution, area covered alarms, and produces the diagnosis of relevant TD-SCDMA network problem.
Present driver test system carries out data sampling by testing mobile phone, testing mobile phone is by data wire or other connection and computer and drive test software communication, and obtain to carry out data by the control to mobile phone, network optimization personnel can comprise that signaling information diagnoses network problem by the wireless network parameter that testing mobile phone reports.
But, under above-mentioned technical scheme, the reason of present driver test system ubiquity efficient low quality difference.
Summary of the invention
In view of there are the problems referred to above in correlation technique, therefore, providing a kind of will combine with the support that algorithm and instrument automation are alarmed in certain drive test data optimization based on the diagnostic procedure of drive test, so that the network optimization work of large-scale network-estabilishing becomes more feasible, more efficient and guarantees that better quality will be desirable.
Main purpose of the present invention be to provide a kind of in the TD-SCDMA system network optimization alarm scheme based on drive test data.
To achieve these goals, according to one embodiment of the invention, the invention provides a kind of network optimization alarm method based on drive test data.
Should may further comprise the steps based on the network optimization alarm method of drive test data:
First step, Primary Common Control Physical Channel received signal code power, the Primary Common Control Physical Channel received signal code power of each co-frequency neighbor cell and the Primary Common Control Physical Channel carrier/interface ratio of Serving cell of the Serving cell that arrives at each drive test point reporting measurement based on the driver test system of testing mobile phone;
Second step is according to predetermined formula parameter D; And
Third step, index and the predetermined threshold that will calculate in second step compare, and under the situation of index greater than predetermined threshold, produce the warning message that there is uncontrolled co-channel interference in corresponding drive test point.
Wherein predetermined formula is D = SPCCPCH _ RSCP Σ i = all neighbour cells NPCCPCH _ RSC P i - SPCCPCH _ CIR ; Wherein, SPCCPCH_RSCP is the Primary Common Control Physical Channel received signal code power of Serving cell, NPCCPCH_RSCP iBe the Primary Common Control Physical Channel received signal code power of co-frequency neighbor cell, SPCCPCH_CIR is the Primary Common Control Physical Channel carrier/interface ratio of Serving cell.
And the predetermined threshold that relates in third step can be provided with two kinds of approach.Method one: determine predetermined threshold according to the network model that network interferences is all controlled by network level emulation, the mean value of its expression index in optimizing the good network environment; Method two: predetermined threshold equals the Primary Common Control Physical Channel received signal code power of Serving cell and the product of first threshold value, wherein, determine first threshold value according to the network model that network interferences is all controlled by network level emulation, predetermined threshold value representation index in optimizing the good network environment with the mean value of the proportionate relationship of the network coverage.
To achieve these goals, according to another embodiment of the present invention, the invention provides a kind of network optimization alarm device based on drive test data.
Should comprise based on the network optimization alarm device of drive test data:
Measurement module is used to measure the Primary Common Control Physical Channel received signal code power of Serving cell, the Primary Common Control Physical Channel received signal code power of each co-frequency neighbor cell and the Primary Common Control Physical Channel carrier/interface ratio of Serving cell;
Drive test point reporting module, be connected to measurement module, be used for reporting at each drive test point Primary Common Control Physical Channel received signal code power, the Primary Common Control Physical Channel received signal code power of each co-frequency neighbor cell and the Primary Common Control Physical Channel carrier/interface ratio of Serving cell of the Serving cell of measuring by measurement module based on the driver test system of testing mobile phone;
The index computing module is connected to drive test point reporting module, is used for coming parameter D according to following formula: D = SPCCPCH _ RSCP Σ i = all neighbour cells NPCCPCH _ RSC P i - SPCCPCH _ CIR ; Wherein, SPCCPCH_RSCP is the Primary Common Control Physical Channel received signal code power of Serving cell, NPCCPCH_RSCP iBe the Primary Common Control Physical Channel received signal code power of co-frequency neighbor cell, SPCCPCH_CIR is the Primary Common Control Physical Channel carrier/interface ratio of Serving cell;
Predetermined threshold is provided with module, is used to be provided with predetermined threshold;
Comparison module is connected to index computing module and predetermined threshold module is set, and the predetermined threshold that is used for the module setting being set by the index and the predetermined threshold of index computing module calculating compares; And
Alarm module is connected to comparison module, and the judged result that is used at comparison module is under the situation of index greater than predetermined threshold, produces the warning message that there is uncontrolled co-channel interference in corresponding drive test point.
By technique scheme, the present invention has realized following beneficial effect: make the network optimization work of large-scale network-estabilishing more feasible, the high efficiency more that becomes, guaranteed better quality simultaneously.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart based on the network optimization alarm method of drive test data according to the embodiment of the invention;
Fig. 2 is the block diagram based on the network optimization alarm device of drive test data according to the embodiment of the invention.
Embodiment
Describe the present invention below with reference to the accompanying drawings in detail.
In an embodiment of the present invention, at first provide a kind of network optimization alarm method based on drive test data, Fig. 1 is the flow chart that this method is shown.
As shown in Figure 1, this method may further comprise the steps:
Step S102: Primary Common Control Physical Channel received signal code power (PCCPCHRSCP), the Primary Common Control Physical Channel received signal code power (PCCPCH RSCP) of each co-frequency neighbor cell and the Primary Common Control Physical Channel carrier/interface ratio (PCCPCH Carrier-To-Interference Ratio, PCCPCH C/I) of Serving cell of the Serving cell that arrives at each drive test point reporting measurement based on the driver test system of testing mobile phone;
Step S104: according to predetermined formula parameter D; And
Step S106: the index D and the predetermined threshold T that will calculate in step S104 compare, and under the situation of index D greater than predetermined threshold T, produce the warning message that there is uncontrolled co-channel interference in corresponding drive test point, for optimizing diagnosis.
Wherein, the predetermined formula among the step S104 is preferably D = SPCCPCH _ RSCP Σ i = all neighbour cells NPCCPCH _ RSC P i - SPCCPCH _ CIR , Wherein, SPCCPCH_RSCP is the PCCPCH RSCP of the Serving cell that reports, NPCCPCH_RSCP in step S102 iBe the PCCPCH RSCP of the co-frequency neighbor cell that reports in step S102, SPCCPCH_CIR is the PCCPCH C/I of the Serving cell that reports in step S102.
And the predetermined threshold T that relates in step S106 can determine according to following two kinds of methods:
Method one: T=T 1, wherein, threshold T 1Network model according to network interferences all controlled (optimize good) determines by network level emulation, basic representation the mean value of index D in optimizing the good network environment;
Method two: T=SPCCPCH RSCP*T2, wherein, threshold T 2 determines by network level emulation according to the network model of network interferences all controlled (optimize good), basic representation index D in optimizing the good network environment with the mean value of the proportionate relationship of the network coverage (characterizing) with SPCCPCHRSCP.Wherein SPCCPCH RSCP is the PCCPCH RSCP of the Serving cell that reports among the step S102.
Wherein, the uncontrolled co-channel interference that in step S106, relates to may not optimize from homogeneous-frequency adjacent-domain, with networking problems such as pilot pollution, co-frequency cell area covered frequently.
Above-mentioned steps is implemented by the data-driven that driver test system each the drive test point in zone to be optimized based on testing mobile phone reports continuously, behind traversal drive test zone whole to be investigated, personnel collect warning message by the network optimization, and make the problem diagnosis of the network optimization.In view of the above, network optimization personnel disturb according to the uncontrolled homogeneous-frequency adjacent-domain of algorithm alarm identification and have situation, and whether finish this interferences on this basis be because homogeneous-frequency adjacent-domain is not optimized, diagnose with pilot pollution, the caused network optimization of co-frequency cell area covered frequently.
In another embodiment of the present invention, a kind of network optimization alarm device based on drive test data is provided, wherein, Fig. 2 is the block diagram that the structure of this device is shown.
As shown in Figure 2, should comprise based on the network optimization alarm device of drive test data:
Measurement module 202, be used to measure the Primary Common Control Physical Channel received signal code power (PCCPCH RSCP) of Primary Common Control Physical Channel received signal code power (PCCPCH RSCP), each co-frequency neighbor cell and the Serving cell of Serving cell the Primary Common Control Physical Channel carrier/interface ratio (PCCPCH Carrier-To-Interference Ratio, PCCPCHC/I);
Drive test point reporting module 204, be connected to measurement module 202, be used for reporting at each drive test point Primary Common Control Physical Channel received signal code power, the Primary Common Control Physical Channel received signal code power of each co-frequency neighbor cell and the Primary Common Control Physical Channel carrier/interface ratio of Serving cell of the Serving cell of measuring by measurement module 202 based on the driver test system of testing mobile phone;
Index computing module 206 is connected to drive test point reporting module 204, is used for coming parameter D according to predetermined formula, and preferably, this formula is following formula: D = SPCCPCH _ RSCP Σ i = all neighbour cells NPCCPCH _ RSC P i - SPCCPCH _ CIR ; Wherein, SPCCPCH_RSCP is the Primary Common Control Physical Channel received signal code power of Serving cell, NPCCPCH_RSCP iBe the Primary Common Control Physical Channel received signal code power of co-frequency neighbor cell, SPCCPCH_CIR is the Primary Common Control Physical Channel carrier/interface ratio of Serving cell;
Predetermined threshold is provided with module 208, is used to be provided with predetermined threshold;
Comparison module 210 is connected to index computing module 206 and predetermined threshold module 208 is set, and the predetermined threshold T that is used for module 208 settings being set by the index D and the predetermined threshold of index computing module 206 calculating compares; And
Alarm module 212 is connected to comparison module 210, and the judged result that is used at comparison module 210 is under the situation of index D greater than predetermined threshold T, produces the warning message that there is uncontrolled co-channel interference in corresponding drive test point.
Wherein, predetermined threshold T can determine according to following two kinds of methods:
Method one: T=T 1, wherein, threshold T 1Network model according to network interferences all controlled (optimize good) determines by network level emulation, basic representation the mean value of index D in optimizing the good network environment;
Method two: predetermined threshold is provided with module 208 and further comprises the first threshold value (T 2) module 208-2 is set, wherein, threshold T 2 is determined by network level emulation according to the network model of network interferences all controlled (optimizing good), like this, T=SPCCPCH RSCP*T2, basic representation index D in optimizing the good network environment with the mean value of the proportionate relationship of the network coverage (characterizing) with SPCCPCH RSCP.Wherein SPCCPCH RSCP is the PCCPCH RSCP of the Serving cell that reported by drive test point reporting module 204.
There is the uncontrolled co-channel interference situation that exists owing to network design issue in alarm scheme based on drive test data of the present invention with high efficiency diagnosis the out in the network, these uncontrolled co-channel interferences may not optimized from homogeneous-frequency adjacent-domain, same networking problems such as pilot pollution, co-frequency cell area covered frequently.In addition, technology of the present invention can identify the optimization diagnosis that there is situation in uncontrolled network interferences in the actual networking and carries out network on this basis at the level of algorithm and automation.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (8)

1. the network optimization alarm method based on drive test data is characterized in that, may further comprise the steps:
First step, Primary Common Control Physical Channel received signal code power, the Primary Common Control Physical Channel received signal code power of each co-frequency neighbor cell and the Primary Common Control Physical Channel carrier/interface ratio of Serving cell of the Serving cell that arrives at each drive test point reporting measurement based on the driver test system of testing mobile phone;
Second step is according to predetermined formula parameter D; And
Third step, described index and the predetermined threshold that will calculate in described second step compare, and under the situation of described index greater than predetermined threshold, produce the warning message that there is uncontrolled co-channel interference in corresponding drive test point;
Wherein, described predetermined formula is Wherein, SPCCPCH_RSCP is the Primary Common Control Physical Channel received signal code power of described Serving cell, NPCCPCH_RSCPi is the Primary Common Control Physical Channel received signal code power of described co-frequency neighbor cell, and SPCCPCH_CIR is the Primary Common Control Physical Channel carrier/interface ratio of described Serving cell.
2. the network optimization alarm method based on drive test data according to claim 1 is characterized in that, in described third step, determines described predetermined threshold according to the network model that network interferences is all controlled by network level emulation.
3. the network optimization alarm method based on drive test data according to claim 2 is characterized in that, the mean value of the described index of described predetermined threshold value representation in optimizing the good network environment.
4. the network optimization alarm method based on drive test data according to claim 1, it is characterized in that, in described third step, described predetermined threshold equals the Primary Common Control Physical Channel received signal code power of described Serving cell and the product of first threshold value, represent described index in optimizing the good network environment with the mean value of the proportionate relationship of the network coverage, wherein, determine described first threshold value according to all controlled network model of network interferences by network level emulation.
5. the network optimization alarm device based on drive test data is characterized in that, comprising:
Measurement module is used to measure the Primary Common Control Physical Channel received signal code power of Serving cell, the Primary Common Control Physical Channel received signal code power of each co-frequency neighbor cell and the Primary Common Control Physical Channel carrier/interface ratio of Serving cell;
Drive test point reporting module, be connected to described measurement module, be used for reporting at each drive test point Primary Common Control Physical Channel received signal code power, the Primary Common Control Physical Channel received signal code power of described each co-frequency neighbor cell and the Primary Common Control Physical Channel carrier/interface ratio of described Serving cell of the described Serving cell of measuring by described measurement module based on the driver test system of testing mobile phone;
The index computing module is connected to described drive test point reporting module, is used for coming parameter D according to predetermined formula;
Predetermined threshold is provided with module, is used to be provided with predetermined threshold;
Comparison module is connected to described index computing module and described predetermined threshold module is set, and the predetermined threshold that is used for the module setting being set by the described index and the described predetermined threshold of described index computing module calculating compares; And
Alarm module is connected to described comparison module, and the judged result that is used at described comparison module is under the situation of described index greater than described predetermined threshold, produces the warning message that there is uncontrolled co-channel interference in corresponding drive test point;
Wherein, described predetermined formula is Wherein, SPCCPCH_RSCP is the Primary Common Control Physical Channel received signal code power of described Serving cell, NPCCPCH_RSCPi is the Primary Common Control Physical Channel received signal code power of described co-frequency neighbor cell, and SPCCPCH_CIR is the Primary Common Control Physical Channel carrier/interface ratio of described Serving cell.
6. the network optimization alarm device based on drive test data according to claim 5 is characterized in that, described predetermined threshold is provided with module and determines described predetermined threshold according to all controlled network model of network interferences by network level emulation.
7. the network optimization alarm device based on drive test data according to claim 6 is characterized in that, the mean value of the described index of described predetermined threshold value representation in optimizing the good network environment.
8. the network optimization alarm device based on drive test data according to claim 5 is characterized in that described predetermined threshold is provided with module and further comprises
First threshold value is provided with module, is used for by network level emulation first threshold value being set according to all controlled network model of network interferences;
Wherein, described predetermined threshold is provided with module and by being multiplied each other by the Primary Common Control Physical Channel received signal code power that described first threshold value is provided with described first threshold value of module setting and described Serving cell described predetermined threshold is set, and described predetermined threshold is used for representing that described index optimizing the mean value of good network environment with the proportionate relationship of the network coverage.
CN2007100045356A 2007-01-08 2007-01-08 Network optimization alarm method and apparatus based on drive test data Expired - Fee Related CN101222729B (en)

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