CN100562157C - A kind of cell performance number reporting method - Google Patents
A kind of cell performance number reporting method Download PDFInfo
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- CN100562157C CN100562157C CNB2005100681117A CN200510068111A CN100562157C CN 100562157 C CN100562157 C CN 100562157C CN B2005100681117 A CNB2005100681117 A CN B2005100681117A CN 200510068111 A CN200510068111 A CN 200510068111A CN 100562157 C CN100562157 C CN 100562157C
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Abstract
The invention discloses a kind of cell performance number reporting method, be applied to the telephone traffic simulation test of base station controller, comprise A, in the simulation compass of competency of base station controller, set up plane coordinates, set the actual geographic distance of unit length representative; B, after simulating mobile terminal moves to the target location, calculate the distance of simulating mobile terminal and home cell and neighbor cell base station according to the coordinate figure of pairing coordinate figure in target location and anolog base station position, and be mapped as actual geographical distance value; C, calculate the respective cell performance number, report base station controller by measurement report according to described geographic distance value.Adopt the inventive method energy simple realization cell performance number reporting, thus the convenient sub-district switching flow that starts in the simulation test.
Description
Technical field
The present invention relates to wireless communication field, relate in particular in the simulation test process of base station controller the report method of cell power value.
Background technology
In gsm mobile communication system, base station controller is administered a plurality of base stations, carries out Signalling exchange by the base station with a large amount of portable terminals.For guarantee base station controller in actual use can be normally, work expeditiously, base station controller is necessary to carry out the test of Bulk Call before dispatching from the factory.
Prior art one: use a plurality of real base station equipments, use a large amount of real mobile phones to carry out testing, thereby checking base station controller (Base Station Controller is called for short BSC) in the correctness of aspect of performance, is found potential problem.
The shortcoming of prior art one is as follows:
1, cost height needs a large amount of base station and mobile phone, and before equipment was introduced to the market, such test mode cost was too high, unrealistic;
2, can't realize automation, the Test Networking circumstance complication needs a large amount of personnel to come hand to dial.
Prior art two: adopt analog machine, test for BSC by the E1 line at Abis interface (interface between base station controller and the base station), virtual " mobile phone " in the analogue system initiates to call out repeatedly with fixing access module, thereby reaches the purpose of telephone traffic test.
This scheme can be carried out the telephone traffic test basically, but has following shortcoming:
Do not simulate the real work environment of BSC well, for example: when terminal is mobile status, may need to carry out cell update or handover, and this kind test mode only being initiated to call out repeatedly with fixing access module, is incomplete to the performance test of BSC.
In order to simulate more real test environment, need be in the simulation test process, simulate real sub-district switching flow, this just needs the measurement report of the continuous reporting subdistrict signal quality of simulating mobile terminal, the home cell of its reception and the signal power value of neighbor cell are reported base station controller, start switching flow according to the measurement report object information that reports by base station controller.Therefore, how in the simulation test environment, carrying out cell performance number reporting, is the key that realizes starting in the simulation test sub-district switching flow.Yet, in the prior art, also do not have specific descriptions about cell performance number reporting method in the simulation test.
Summary of the invention
The invention provides a kind of cell performance number reporting method, be applied to the telephone traffic simulation test of base station controller,, thereby start the sub-district switching flow, realize full test the base station controller service feature by the reporting subdistrict performance number.
The inventive method comprises:
A, in the simulation compass of competency of base station controller, set up plane coordinates, set the actual geographic distance of unit length representative;
B, after simulating mobile terminal moves to the target location, calculate the distance of simulating mobile terminal and home cell and neighbor cell base station according to the coordinate figure of pairing coordinate figure in target location and anolog base station position, and be mapped as actual geographical distance value;
C, if cell type is 900 types, then calculate the respective cell performance number according to formula P=(P0-91.48)-20log D, if cell type is 1800 types, then calculate the respective cell performance number according to formula P=(P0-97.51)-20log D; And report base station controller by measurement report; Wherein, 900 types represent that the rf frequency of cell base station is 900MHz, and 1800 types represent that the rf frequency of cell base station is 1800MHz, and P represents the cell power value, and unit is dbm; P0 represents the transmitting power of cell base station, is a fixed value, and unit is dbm; D is actual geographical distance value, and unit is Km; Log is that to ask the truth of a matter be 10 logarithm operation.
Also comprise before the described step B: calculate the target location of setting and the distance of anolog base station, and store the table of comparisons of target location coordinate and distance value to anolog base station;
Calculate the distance of simulating mobile terminal and home cell and neighbor cell base station described in the step B, concrete grammar is: search the table of comparisons in home cell and the neighbor cell base station, obtain and the corresponding distance value of current goal position coordinates.
Described simulation compass of competency is divided into plurality of grids, the initial position of anolog base station position, simulating mobile terminal and move after the target location be set on the described grid intersection point.
Described grid is the identical rectangle grid of size, and the length of network X direction is represented actual geographical distance A, and the length of y direction is represented actual geographic distance B; The coordinate figure of the target location of described anolog base station position, simulating mobile terminal is represented with the meshes number of its range coordinate round dot on X direction and y direction, the described target location of setting and the distance of anolog base station of calculating, and concrete grammar is:
B1, calculate the difference DX of target location abscissa and anolog base station position abscissa and the difference DY of target location ordinate and anolog base station position ordinate;
B2, obtain the actual geographical distance value D of simulating mobile terminal and home cell and neighbor cell base station by following formula by described DX, DY difference:
D＝Sqrt[(DX*A)*(DX*A)+(DY*B)*(DY*B)]
In the formula, Sqrt is an extracting operation, and * is multiplying.
Described grid is the identical square net of size, and the grid length of side is represented actual geographical distance L; The coordinate figure of the target location of anolog base station position, simulating mobile terminal is represented with the meshes number of its range coordinate round dot on X direction and y direction, the described target location of setting and the distance of anolog base station of calculating, and concrete grammar is:
B1, calculate the difference DX of target location abscissa and anolog base station position abscissa and the difference DY of target location ordinate and anolog base station position ordinate;
B2, obtain the actual geographical distance value D of simulating mobile terminal and home cell and neighbor cell base station by following formula by described DX, DY difference:
D＝L*Sqrt[(DX*DX)+(DY*DY]
In the formula, Sqrt is an extracting operation, and * is multiplying.
Described target location is the total-grid intersection point.
Described anolog base station and simulating mobile terminal all can be set to one or more.
The present invention is according to the distance between simulating mobile terminal and the anolog base station, calculate the performance number of respective cell, and report base station controller by test report, realize that the sub-district under the simulated environment is switched, the simulation test that makes the every performance of base station controller more comprehensively, truer.
Description of drawings
Fig. 1 is the inventive method flow chart;
Fig. 2 is portable terminal and a base station location schematic diagram in the embodiment of the invention;
Fig. 3 is the table of comparisons of target location coordinate and distance value in the embodiment of the invention.
Embodiment
Referring to Fig. 1,,, the concrete implementation step of the inventive method is described in detail below in conjunction with accompanying drawing for the inventive method flow chart of steps.
Step S1, in the simulation compass of competency of base station controller, set up plane coordinates, set the actual geographic distance of unit length representative; And set the initial position of anolog base station position and cell range, simulating mobile terminal and move after the target location.
For example: with true compass of competency P * Q square kilometre of zone that is modeled as a rectangle of base station controller, in this rectangular area, set up a plane coordinates, set the actual geographic distance of unit length representative; And set the initial position of anolog base station position and cell range, simulating mobile terminal and move after the target location, according to the plane coordinates of setting up, determine the coordinate figure of anolog base station correspondence, the coordinate figure of the initial position correspondence of simulating mobile terminal and the coordinate figure of moving target position correspondence.Wherein, anolog base station and simulating mobile terminal can be set at a plurality of, and moving target position also can arbitrarily be specified several in whole simulation compass of competency.
In order to make calculating easier, the simulation rectangular area can be divided into the grid of several same size, with the initial position of anolog base station position, simulating mobile terminal and the target location after moving all be set on the grid intersection point, as shown in Figure 2.For example, be M * N net region with the area dividing of simulating rectangle, it is representing actual P * Q square kilometre, and then the actual geographic distance of the horizontal and vertical length representative of each grid is A=P/M (km), B=Q/N (km).Like this, the initial position of anolog base station position, simulating mobile terminal and move after the coordinate figure of target location just can represent with the meshes number of its range coordinate round dot on X direction and y direction.
When reality starts the analogue measurement process, can calculate the distance value of all target locations and each base station earlier, and give the table of comparisons of each target location coordinate of anolog base station storage and distance value; As shown in Figure 3, suppose that all grid intersection points all are the moving target positions of simulating mobile terminal, the origin of coordinates is the end points in the lower left corner, then the abscissa of each grid intersection point be 1,2 ... to (M-1), ordinate is 1,2 ... to (N-1), the distance value of each grid intersection point and base station 1 is precomputed, be deposited in the form shown in Figure 3, D among the figure (1,1) denotation coordination value is the distance value of the target location and the base station 1 of (1,1), D (1,2) the denotation coordination value is the distance value of the target location and the base station 1 of (1,2), and the rest may be inferred.In like manner, can precompute the distance value of each grid intersection point and base station 2, base station 3 etc., deposit in the similar form.Concrete computational methods are:
If described grid is the identical rectangle grid of size, the length of network X direction is represented actual geographical distance A, the length of y direction is represented actual geographic distance B, then calculate the difference DX of target location abscissa and anolog base station position abscissa earlier, and the difference DY of target location ordinate and anolog base station position ordinate; Obtain the actual geographical distance value D of simulating mobile terminal and home cell and neighbor cell base station again by following formula (1) by described DX, DY difference:
D=Sqrt[(DX*A) * (DX*A)+(DY*B) * (DY*B)] formula (1)
If described grid is the identical square net of size, the grid length of side is represented actual geographical distance L; Then calculate the difference DX of target location abscissa and anolog base station position abscissa earlier, and the difference DY of target location ordinate and anolog base station position ordinate; Obtain the actual geographical distance value D of simulating mobile terminal and home cell and neighbor cell base station again by following formula (2) by described DX, DY difference:
D=L*Sqrt[(DX*DX)+(DY*DY] formula (2)
In formula (1), (2), Sqrt is an extracting operation, and * is multiplying.
Step S2, simulating mobile terminal move to the target location of setting in simulated domain.
As mentioned above, can set several moving target positions in simulated domain, after starting simulation test, simulating mobile terminal moves to the target location of setting from initial position, or moves to next target location from previous target location.As mentioned above, the target location can be set at each grid intersection point.
Step S3, calculate the distance of simulating mobile terminal and home cell and neighbor cell base station, and be mapped as actual geographical distance value.
In this step, if do not calculate and store the table of comparisons of target location and distance value in advance, then, calculate the respective distances value according to the coordinate figure of current goal position and the coordinate figure of home cell and neighbor cell base station, promptly, ask its air line distance according to 2 coordinate; The distance value of trying to achieve is mapped as actual geographic distance;
If store the table of comparisons of target location and distance value in advance, then search the described table of comparisons according to the coordinate figure of current goal position, the current goal position coordinates that obtains storing and the distance value of home cell and neighbor cell base station are mapped as actual geographic distance with the distance value of trying to achieve again.
The geographic distance value that step S4, basis obtain calculates the respective cell performance number, reports base station controller by measurement report.
If cell type is 900 types, then cell power value P through type (3) is tried to achieve;
P=(P0-91.48)-20log D formula (3)
If cell type is 1800 types, then cell power value P through type (4) is tried to achieve;
P=(P0-97.51)-20log D formula (4)
In formula (3), (4) formula (3), (4), P represents the cell power value, and unit is dbm; P0 represents the transmitting power of this base station, is a fixed value; D is actual geographical distance value, and unit comes Km, and log is for asking logarithm operation.
After obtaining the cell power value, can performance number be converted to 0～63 integer numerical value RXLEV (received power grade) according to the corresponding relation in the GSM0508 agreement, the corresponding relation of RXLEV and actual power value (unit is dBm) is as follows:
RXLEV 0=less than (less than)-110dBm.
RXLEV?1＝-110dBm?to-109dBm。
RXLEV?2＝-109dBm?to-108dBm。
.
.
.
.
RXLEV?62＝-49dBm?to-48dBm。
RXLEV 63=greater than (greater than)-48dBm.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (7)
1, a kind of cell performance number reporting method is applied to the telephone traffic simulation test of base station controller, it is characterized in that, comprises the following steps:
A, in the simulation compass of competency of base station controller, set up plane coordinates, set the actual geographic distance of unit length representative;
B, after simulating mobile terminal moves to the target location, calculate the distance of simulating mobile terminal and home cell and neighbor cell base station according to the coordinate figure of pairing coordinate figure in target location and anolog base station position, and be mapped as actual geographical distance value;
C, if cell type is 900 types, then calculate the respective cell performance number according to formula P=(P0-91.48)-20log D, if cell type is 1800 types, then calculate the respective cell performance number according to formula P=(P0-97.51)-20log D; And report base station controller by measurement report; Wherein, 900 types represent that the rf frequency of cell base station is 900MHz, and 1800 types represent that the rf frequency of cell base station is 1800MHz, and P represents the cell power value, and unit is dbm; P0 represents the transmitting power of cell base station, is a fixed value, and unit is dbm; D is actual geographical distance value, and unit is Km; Log is that to ask the truth of a matter be 10 logarithm operation.
2, the method for claim 1 is characterized in that, also comprises before the described step B: calculate the target location of setting and the distance of anolog base station, and store the table of comparisons of target location coordinate and distance value to anolog base station;
Calculate the distance of simulating mobile terminal and home cell and neighbor cell base station described in the step B, concrete grammar is: search the table of comparisons in home cell and the neighbor cell base station, obtain and the corresponding distance value of current goal position coordinates.
3, method as claimed in claim 2 is characterized in that, described simulation compass of competency is divided into plurality of grids, the initial position of anolog base station position, simulating mobile terminal and move after the target location be set on the described grid intersection point.
4, method as claimed in claim 3 is characterized in that, described grid is the identical rectangle grid of size, and the length of network X direction is represented actual geographical distance A, and the length of y direction is represented actual geographic distance B; The coordinate figure of the target location of described anolog base station position, simulating mobile terminal is represented with the meshes number of its range coordinate round dot on X direction and y direction, the described target location of setting and the distance of anolog base station of calculating, and concrete grammar is:
B1, calculate the difference DX of target location abscissa and anolog base station position abscissa and the difference DY of target location ordinate and anolog base station position ordinate;
B2, obtain the actual geographical distance value D of simulating mobile terminal and home cell and neighbor cell base station by following formula by described DX, DY difference:
D＝Sqrt[(DX*A)*(DX*A)+(DY*B)*(DY*B)]
In the formula, Sqrt is an extracting operation, and * is multiplying.
5, method as claimed in claim 3 is characterized in that, described grid is the identical square net of size, and the grid length of side is represented actual geographical distance L; The coordinate figure of the target location of anolog base station position, simulating mobile terminal is represented with the meshes number of its range coordinate round dot on X direction and y direction, the described target location of setting and the distance of anolog base station of calculating, and concrete grammar is:
B1, calculate the difference DX of target location abscissa and anolog base station position abscissa and the difference DY of target location ordinate and anolog base station position ordinate;
B2, obtain the actual geographical distance value D of simulating mobile terminal and home cell and neighbor cell base station by following formula by described DX, DY difference:
D＝L*Sqrt[(DX*DX)+(DY*DY]
In the formula, Sqrt is an extracting operation, and * is multiplying.
As claim 4 or 5 described methods, it is characterized in that 6, described target location is the total-grid intersection point.
7, the method for claim 1 is characterized in that, described anolog base station and simulating mobile terminal all can be set to one or more.
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| CN102469058B (en) | 2010-11-12 | 2016-02-10 | 中兴通讯股份有限公司 | A kind of report method of the carrier wave maximum power for carrier aggregation scene and device |
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| 雷达显示器. 《雷达技术》编写组，4，上海科学技术出版社. 1978 雷达显示器. 《雷达技术》编写组，4，上海科学技术出版社. 1978 |
| 雷达显示器. 《雷达技术》编写组，4，上海科学技术出版社. 1978 * |
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Effective date of registration: 20211227 Address after: 450046 Floor 9, building 1, Zhengshang Boya Plaza, Longzihu wisdom Island, Zhengdong New Area, Zhengzhou City, Henan Province Patentee after: Super fusion Digital Technology Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |