CN103188709A - Testing method, device and system for intermodulation interference - Google Patents
Testing method, device and system for intermodulation interference Download PDFInfo
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Abstract
本发明公开一种互调干扰的测试方法、装置及系统，涉及无线通信技术领域，解决了现有技术中，互调干扰测试时，受其他干扰影响导致的测试结果不准确的问题。本发明的方法主要包括：后台终端根据从基站控制器处获取的硬件配置信息确定被测试硬件的配置信息；基站控制器接收到来自所述后台终端的虚拟小区定义指令，所述虚拟小区定义指令中包括根据用户输入的指定频点信息和所述配置信息生成的虚拟参数信息；基站控制器根据所述虚拟参数信息为真实小区配置用于互调干扰测试的虚拟小区的生成信息，并将所述生成信息发送到载频；所述载频根据所述生成信息配置所述用于互调干扰测试的虚拟小区，并进行互调干扰测试。本发明实施例主要应用于测试。
The invention discloses a test method, device and system for intermodulation interference, relates to the technical field of wireless communication, and solves the problem of inaccurate test results caused by other interferences in intermodulation interference testing in the prior art. The method of the present invention mainly includes: the background terminal determines the configuration information of the tested hardware according to the hardware configuration information obtained from the base station controller; the base station controller receives a virtual cell definition instruction from the background terminal, and the virtual cell definition instruction Including the virtual parameter information generated according to the specified frequency point information input by the user and the configuration information; the base station controller configures the generation information of the virtual cell used for the intermodulation interference test for the real cell according to the virtual parameter information, and uses the generated information The generated information is sent to the carrier frequency; the carrier frequency configures the virtual cell for the intermodulation interference test according to the generated information, and performs the intermodulation interference test. The embodiments of the present invention are mainly applied to testing.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of method of testing, Apparatus and system of Intermodulation Interference.
Background technology
At GSM (Global System of Mobile communication, global system for mobile communications) in, because the mechanical connection of passive device is unreliable, use has the material of hysteresis characteristic, reasons such as contact-making surface corrosion, overloading downstream signal frequently is at different materials junction non-linear frequency mixing, may produce stronger intermodulation product, after wherein the part intermodulation product falls into uplink band, to cause interference to the upward signal of base station, and then cause GSM speech quality to worsen, the serious phenomenon that also may cause call drop and can't connect namely is Intermodulation Interference as this interference phenomenon of bringing that is produced by intermodulation product.
Except Intermodulation Interference, the kind of uplink interference also has a lot, for example communication shielding device disturbs, cdma base station obstruction or clutter interference, disturb frequently from other base stations same adjacent etc., because the complexity of wireless environment, the uplink interference of base station is the stack of one or more interference normally, and the purpose of Intermodulation Interference test judges whether comprise Intermodulation Interference in the uplink interference exactly, perhaps the contribution degree of Intermodulation Interference in uplink interference.Measure by intermodulation accurately, can realize that fault accurately locatees, and then instruct hardware to change to solve the Intermodulation Interference problem; If the intermodulation testing result is inaccurate, accurate fault location point just, the problems such as conversation matter difference that can't solve Intermodulation Interference and cause.
At present, generally adopt the uplink interference Spectral Analysis Method to carry out the intermodulation testing of backstage, base station and analysis in the prior art.
But intermodulation is the product of downstream signal non-linear frequency mixing, and its intensity is relevant with multiple factors such as downstream signal power, frequency intervals.And in the base station and residential quarter of reality, has the transmitter that quantity does not wait under every transmission channel, the operating frequency of these transmitters does not have fixedly rule, and except the transmitter at broadcast channel place, the power output of other transmitters is fixing, emission is discontinuous, therefore causes the level, frequency etc. of real base station and residential quarter intermodulation product can't accurately reflect the problem of Intermodulation Interference situation easily.
Summary of the invention
Embodiments of the invention provide a kind of method of testing, Apparatus and system of Intermodulation Interference, in order to improve the test accuracy of Intermodulation Interference.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of method of testing of Intermodulation Interference comprises:
Background terminal is determined the configuration information of tested hardware according to the hardware configuration information that obtains from base station controller;
Base station controller receives the virtual subdistrict defined instruction from background terminal, comprises in the virtual subdistrict defined instruction according to the appointment frequency point information of user's input and the virtual parameter information of configuration information generation;
Base station controller is the generation information that the true cell configuration is used for the virtual subdistrict of Intermodulation Interference test according to virtual parameter information, and generation information is sent to carrier frequency;
Carrier frequency is used for the virtual subdistrict that Intermodulation Interference is tested according to generating information configuration, and carries out the Intermodulation Interference test.
Wherein, above-mentioned base station controller is the generation information that true cell configuration is used for the virtual subdistrict of Intermodulation Interference test according to virtual parameter information, and generation information is sent to carrier frequency specifically comprises:
Base station controller adds the virtual subdistrict record that comprises virtual parameter information in built-in cell data base; After the out code of closing true cell that receives from background terminal, comprise in the out code: the true cell numbering in the configuration information; Base station controller sends to all carrier frequency that are articulated under the true cell numbering with out code, to close all carrier frequency that are articulated under the true cell numbering;
Base station controller receives from the carrier frequency of background terminal and residential quarter locking relation alteration command, comprises virtual subdistrict numbering and carrier frequency numbering in the configuration information in carrier frequency and the residential quarter locking relation alteration command at least; And virtual subdistrict numbering and virtual parameter information are sent to the carrier frequency of carrier frequency numbering correspondence as the generation information of the virtual subdistrict that is used for the Intermodulation Interference test.
In addition, this method also comprises:
Background terminal gets access to test data after the intermodulation testing according to the system configuration information that prestores from base station controller, and according to the Intermodulation Interference level value of the tested hardware of test data analysis.
In addition, this method also comprises:
Base station controller is after the recovery instruction that receives from background terminal, with the described true cell reinstatement attitude of cutting out in the intermodulation testing.
Wherein, above-mentioned virtual parameter information comprises: virtual subdistrict broadcast channel tranmitting frequency, virtual subdistrict transmitting power and forbid the service access cell;
Wherein, virtual subdistrict broadcast channel tranmitting frequency is specially any frequency in 76-94 frequency, the 1-19 frequency; The virtual subdistrict transmitting power is specially: the maximum transmit power of carrier frequency in the configuration information.
A kind of base station controller comprises:
Receiving element is used for receiving the virtual subdistrict defined instruction from background terminal, comprises in the virtual subdistrict defined instruction according to the appointment frequency point information of user's input and the virtual parameter information of configuration information generation;
Generation unit, being used for according to virtual parameter information is the generation information that the true cell configuration is used for the virtual subdistrict of Intermodulation Interference test;
Transmitting element is used for generation information and sends to carrier frequency, so that carrier frequency is used for the virtual subdistrict that Intermodulation Interference is tested according to generating information configuration, and carries out the Intermodulation Interference test.
Wherein, above-mentioned generation unit comprises:
Logging modle is used for adding the virtual subdistrict record that comprises virtual parameter information in built-in cell data base;
The closing control module, be used for after the out code of closing true cell that receives from background terminal, comprise in the out code: the true cell numbering in the described configuration information, and described out code sent to described true cell numbering all carrier frequency down, be articulated in described true cell all carrier frequency under numbering to close;
Relation change module is used for behind the carrier frequency and residential quarter locking relation alteration command that receive from background terminal, comprises virtual subdistrict numbering and carrier frequency numbering in the configuration information in carrier frequency and the residential quarter locking relation alteration command at least; And virtual subdistrict numbering and virtual parameter information are sent to the carrier frequency of described carrier frequency numbering correspondence as the generation information of the virtual subdistrict that is used for the Intermodulation Interference test.
In addition, this controller also comprises:
Recover control unit, be used for after the recovery instruction that receives from background terminal, with the described true cell reinstatement attitude of closing in the intermodulation testing.
A kind of test macro of Intermodulation Interference,
Comprise: background terminal, base station controller and carrier frequency;
Background terminal, be used for determining according to the hardware configuration information that obtains from base station controller the configuration information of tested hardware, the virtual parameter information that generates according to appointment frequency point information and the configuration information of user input, and the virtual subdistrict defined instruction that will comprise virtual parameter information sends to base station controller;
Base station controller is used for after the virtual subdistrict defined instruction that receives from background terminal, is the generation information that the true cell configuration is used for the virtual subdistrict of Intermodulation Interference test according to virtual parameter information, and generation information is sent to carrier frequency;
Carrier frequency is used for being used for the virtual subdistrict that Intermodulation Interference is tested according to generating information configuration, and carries out the Intermodulation Interference test.
Wherein, base station controller, concrete being used for added the virtual subdistrict record that comprises virtual parameter information in built-in cell data base, and after the out code of closing true cell that receives from background terminal, comprise in the out code: be used for the carrier frequency numbering of virtual subdistrict Intermodulation Interference test and corresponding true cell numbering in the configuration information; Out code is sent to carrier frequency;
Described carrier frequency, concrete being used for closes after receiving described out code; Base station controller, also concrete for behind the carrier frequency and residential quarter locking relation alteration command that receive from described background terminal, at least comprise virtual subdistrict numbering and carrier frequency numbering in the described configuration information in described carrier frequency and the residential quarter locking relation alteration command, described virtual subdistrict numbering and virtual parameter information are sent to the carrier frequency that described carrier frequency is numbered correspondence as the generation information of the virtual subdistrict that is used for the Intermodulation Interference test.
In the testing scheme of the Intermodulation Interference that the embodiment of the invention provides, the virtual parameter information that base station controller can send over according to background terminal under the indication of virtual subdistrict defined instruction is the generation information that the true cell configuration is used for the virtual subdistrict of Intermodulation Interference test, so making intermodulation testing can carry out under desirable test environment, avoid being subjected to ectocine and inaccurate technical problem because true cell is carried out the test result that Intermodulation Interference test causes, and then obtained and can improve the intermodulation testing result precision, be convenient to the technique effect of location interference reason.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the scene schematic diagram among the inventive method embodiment;
Fig. 2 is the schematic flow sheet of the method for testing of the Intermodulation Interference among the inventive method embodiment;
The principle schematic that Fig. 3 chooses for the inventive method embodiment intermediate-frequeney point;
Fig. 4 is the structural representation of the base station controller among apparatus of the present invention embodiment;
Fig. 5 is the structural representation of the test macro of the Intermodulation Interference in the system embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.And, below each embodiment be possibility of the present invention, embodiment put in order and the numbering execution sequence preferred with it of embodiment irrelevant.
Method embodiment
Present embodiment specifically provides a kind of method of testing of Intermodulation Interference in conjunction with scene shown in Figure 1, and as shown in Figure 2, this method comprises:
Before test, store system configuration information on the background terminal, this system configuration information comprises: the filename form (default format: RIRFIL00-0000000XXX), also can comprise user name, password etc. of the IP address of base station controller, the storage directory of spectrum measurement log file, spectrum measurement record.
101, background terminal is determined the configuration information of tested hardware according to the hardware configuration information that obtains from base station controller;
Particularly, 101 can realize in the following way:
Background terminal can adopt Telnet (TELNET) agreement to send the instruction of inquiry hardware test information to base station controller, and base station controller is received the database that will retrieve after this instruction in its memory, and following hardware configuration information is turned back to background terminal.
Background terminal is according to above hardware configuration information, preferably, true cell is numbered 2 minimum carrier frequency and/or number 2 maximum carrier frequency selections as tested hardware, and can generate the configuration information of tested hardware, specifically comprise: the true cell numbering, the channel group number, maximum transmission power, the virtual subdistrict numbering, (carrier frequency refers to realize in GSM or other mobile communication networks equipment of air interface function to the carrier frequency numbering in present embodiment and following embodiment, simple saying is exactly a functional module of the inside, base station, main transmitting-receiving and the processing of being responsible for base band and/or radiofrequency signal, also can claim transceiver unit, the carrier frequency numbering namely refers to the logical number of this transceiver unit so); Configuration information can exist with the formation of form, and form can be with reference to as following table one:
Table one
| The true cell numbering | The channel group number | The carrier frequency numbering | Maximum transmission power | The virtual subdistrict numbering |
| QHG369C | CHGR0 | RXOTX-392-0 | 47 | 369C_0 |
| QHG369C | CHGR1 | RXOTX-392-1 | 47 | 369C_1 |
102, background terminal receives the appointment frequency point information of user input, and according to the virtual parameter information that appointment frequency point information and the configuration information of user's input generates, add this virtual parameter information to the virtual subdistrict defined instruction again after, send to base station controller.
Wherein, virtual parameter information specifically comprises: virtual subdistrict broadcast channel tranmitting frequency (i.e. the frequency point information of appointment), virtual subdistrict transmitting power and forbid the service access cell;
In the preferred version, the frequency point information of above-mentioned appointment should be any frequency in 76-94 frequency, the 1-19 frequency;
For guaranteeing the intermodulation product level maximization, the virtual subdistrict transmitting power is defined as the maximum transmission power that carrier frequency is supported.Therefore in the preferred version, the virtual subdistrict transmitting power is the maximum transmit power of carrier frequency in the configuration information.
Following mask body is introduced in the present embodiment, and virtual subdistrict broadcast channel tranmitting frequency is preferably the principle of any frequency in 76-94 frequency, the 1-19 frequency.
Because in the prior art; be subjected to the restriction of the actual frequency that is configured of true cell; be difficult in the Intermodulation Interference of test cell on the desirable frequency; and for guaranteeing that inter-modulated signal correctly detects; in embodiments of the present invention; the combined with virtual residential quarter can characteristics, can break away from the prior art restriction of the actual frequency that has been configured, the low order intermodulation product is fallen into the receiver uplink band.The principle that frequency range specifically is set is as follows:
In gsm system, uplink band is 890-909MHz, and band downlink is 935-954MHz, and Duplex Spacing is 45MHz.Below be intermodulation frequency computing formula (wherein f1 is that frequency, the f2 of downstream signal 1 are the frequency of downstream signal 2):
3 rank intermodulation frequency fIM3=2f1-f2
5 rank intermodulation frequency fIM5=3f1-2f2
As calculated, 3 rank intermodulation frequencies fall into 916-973MHz, do not fall into upstream band; 5 rank intermodulation frequencies fall into 897-992MHz, and part falls into upstream band.Therefore, the lowest-order intermodulation product that falls into uplink band is 5 rank intermodulation products.As shown in Figure 3.
For guaranteeing 5 rank intermodulation product level maximizations, it is high-end to make 5 rank intermodulation product frequencies be positioned at uplink band.According to 5 rank intermodulation frequency computing formula, when two frequency intervals that transmit are 15MHz, 5 rank intermodulation frequency fIM5=3f1-2f2=3 (f2-15)-2f2=f2-45MHz, and f2 up=f2-Duplex Spacing=f2-45MHz, illustrate that when two frequency intervals that transmit are 15MHz 5 rank intermodulation products and upward signal are with frequently.Therefore, high-end as long as transmit at interval 15MHz and higher the transmitting of frequency of two virtual subdistricts are positioned at band downlink, it is high-end just can to guarantee that the intermodulation product frequency is positioned at uplink band.Proposed arrangement f1 is that 950-954MHz, f2 are 935-939MHz, is equivalent to 76-94 number, 1-19 frequency among the GSM.For example for guaranteeing intermodulation product frequency and stabilization of level; specifically set up the signal source of 2 continual and steady emissions; implementation method is the broadcast channel carrier frequency that 2 carrier frequency in the true cell is defined as 2 virtual subdistricts respectively, and these 2 residential quarters are set to forbid service access.The broadcast channel tranmitting frequency of 2 virtual subdistricts is set to respectively No. 94 and No. 19 frequencies.If No. 94 frequencies disturb and obviously exceed other frequencies interference in the real network, also low slightly frequency can be set, as No. 93 and No. 18 frequencies.
103, base station controller receives the virtual subdistrict defined instruction from described background terminal, and is used for the generation information of the virtual subdistrict of Intermodulation Interference test for tested true cell configuration according to virtual parameter information (virtual subdistrict broadcast channel tranmitting frequency, virtual subdistrict transmitting power and forbid the service access cell) and user's test instruction (as out code, carrier frequency and residential quarter locking relation alteration command).
Wherein, this generation information can be specially: the carrier frequency numbering of virtual subdistrict Intermodulation Interference test (being minimum and maximum carrier frequency numbering in the configuration information of tested hardware), virtual subdistrict are numbered (being derived from the configuration information), virtual subdistrict broadcast channel tranmitting frequency, virtual subdistrict transmitting power, are forbidden the service access cell;
Particularly, step 103 can realize in the following way:
Base station controller adds the virtual subdistrict record that comprises virtual parameter information in its cell data base; After the out code of closing true cell that receives from background terminal, comprise in the out code: tested true cell numbering; Base station controller sends to all carrier frequency that are articulated under the true cell numbering with out code, and all carrier frequency are closed after receiving instruction;
Base station controller receives from the carrier frequency of background terminal and residential quarter locking relation alteration command, comprises at least in carrier frequency and the residential quarter locking relation alteration command that the virtual subdistrict in the configuration information is numbered and numbered for the carrier frequency of virtual subdistrict intermodulation testing; And virtual subdistrict numbering and virtual parameter information sent to carrier frequency for the virtual subdistrict intermodulation testing as the generation information that is used for the virtual subdistrict that Intermodulation Interference tests.
For example: adopt Telnet login base station controller at background terminal, after the user sends the virtual subdistrict defined instruction by background terminal to base station controller, the key parameter of this instruction comprises broadcast channel tranmitting frequency, cell transmit power, forbids service access that wherein the cell transmit power parameter comes from " tested hardware information table ".Be used for replacing it to carry out the virtual subdistrict of Intermodulation Interference test in order to configure one for each true cell, base station controller adds a virtual subdistrict record in its cell data base, the record content comprises the special parameter information that carries in the default parameter of virtual subdistrict and the instruction.It needs to be noted, do not comprise any information relevant with TCH (Traffic Channel) frequency in the virtual subdistrict defined instruction, therefore, virtual subdistrict is a single-frequency residential quarter that only comprises BCCH (Broadcast Control Channel) frequency, and this is the essential condition of accurate intermodulation testing.
The user sends the out code of closing true cell by background terminal to base station controller, and this out code comprises true cell numbering (being tested true cell numbering); After base station controller receives out code, according to the cell data base of base station controller inside, send out code to all carrier frequency that are articulated under this true cell numbering, each carrier frequency is received the stop signal emission of instruction back.After finishing these operations, carrier frequency returns complete confirmation to base station controller, after base station controller is received confirmation, with confirmation " EXECUTED; " feed back to operating terminal.
The user transmits carrier frequency and residential quarter locking relation alteration command by background terminal to base station controller, and the carrier frequency that comprises the virtual subdistrict numbering in this alteration command and be used for the virtual subdistrict intermodulation testing is numbered.After base station controller receives alteration command, the virtual subdistrict numbering that obtains and virtual parameter information can be sent to the corresponding carrier frequency that is used for the virtual subdistrict intermodulation testing of this carrier frequency numbering as the generation information of the virtual subdistrict that is used for the Intermodulation Interference test, the carrier frequency that this carrier frequency is numbered is articulated under this virtual subdistrict.
104, base station controller sends to carrier frequency for the virtual subdistrict intermodulation testing with described generation information, and described carrier frequency is according to the described virtual subdistrict for the Intermodulation Interference test of described generation information configuration, and carries out the Intermodulation Interference test.
For example: carrier frequency generates the information configuration virtual subdistrict according to this, and tranmitting frequency is tuned as the frequency of appointment, transmit with the maximum transmit power of corresponding carrier frequency in the configuration information, and by forbidding this virtual subdistrict of service access to mobile phone transmitting system information.So far, carrier frequency can carry out the Intermodulation Interference test by the virtual subdistrict that configures.After finishing these operations, carrier frequency returns complete confirmation to base station controller, after base station controller is received confirmation, with confirmation " EXECUTED; " feed back to background terminal.
In the present embodiment, except the Intermodulation Interference test is carried out in the configuration virtual residential quarter, also provide the scheme of disturbing according to the test result analysis intermodulation product, namely following step 105.
105, background terminal gets access to test data after the intermodulation testing according to the system configuration information that prestores from described base station controller, and according to the Intermodulation Interference level value of the tested hardware of described test data analysis.
Example A: after background terminal adopts telnet agreement login base station controller, send the virtual subdistrict open command to base station controller, after base station controller receives this open command, control be articulated under the above-mentioned virtual subdistrict carrier frequency with transmitter be tuned to user's specified frequency and according to system broadcast message and the DUMMY BURST of specified power emission virtual subdistrict, thereby realize the lasting full power emission of signal.
After base station controller receives from the instruction of the spectrum measurement of background terminal, base station controller sends test instruction to the carrier frequency that is articulated under the virtual subdistrict, comprise test frequency collection, length of testing speech (user specifies again, and goes out to be carried to base station controller by the spectrum measurement instruction from background terminal) in the instruction.Carrier frequency is carried out test after receiving test instruction in the length of testing speech of appointment, whole test process is divided into 15 seconds long test fragments equably, in 15 seconds test period, carrier frequency successively be tuned to each frequency in the middle of the test frequency collection, upward signal level detecting 20 milliseconds of each frequency execution, and upward signal level detecting result is uploaded to base station controller, arrive the length of testing speech of appointment after, the data of each test fragment that base station controller will be received gather.
The user sends file by background terminal to base station controller and generates instruction, base station controller stores the test data that obtains into the memory of base station controller with the form of binary file, file content comprises virtual subdistrict numbering, frequency, upward signal level intermediate value, after file generated, base station controller was to background terminal feedback acknowledgment information.Background terminal according to the spectrum measurement log file information of definition in " system configuration information " of its storage, gets back to background terminal with 2 spectrum measurement log files of up-to-date storage in the base station controller after the above confirmation.
After base station controller is carried out processing among the above-mentioned routine A at virtual subdistrict 1, owing to have only single carrier frequency emission under 1 residential quarter, do not possess the condition (overloading frequently) that intermodulation produces, what therefore obtain is the uplink interference frequency spectrum that does not comprise intermodulation; After the processing more than continuation is carried out at virtual subdistrict 2 among the routine A, owing to there have been 2 carrier frequency under 2 residential quarters to launch, possessed the condition that intermodulation produces, what therefore obtain is the uplink interference frequency spectrum that comprises intermodulation.Background terminal with the interference level difference of the corresponding frequencies of 5 rank intermodulation products in these two spectrum measurement log files and 5 rank, 7 rank intermodulation products in addition the interference level difference of frequency subtract each other, draw the Intermodulation Interference level value of tested hardware, and add in the intermodulation index table of tested hardware form such as following table two to:
Table two
| The true cell numbering | Hardware number | Five rank intermodulation levels |
| QHG369C | RXOTX-392-0 | -70dBm |
Wherein, the interference level in the spectrum measurement log file adds that-110 are the actual interference level;
Wherein, interference level unit is dBm, the secondary transfer process of process dBm-mW-dBm when asking difference.
In addition, after executing said process, the method for present embodiment also comprises:
106, base station controller recovers tested true cell to normal operating conditions after receiving from the recovery of described background terminal instruction.
Particularly, this step 106 namely is the inverse process of above-mentioned steps 103.
For example: after background terminal adopts telnet agreement login base station controller, transmit carrier frequency and residential quarter locking relation alteration command to base station controller, comprising the carrier frequency numbering that is used for the test of virtual subdistrict Intermodulation Interference in the configuration information, tested true cell numbering, channel group number.After base station controller receives instruction, the control carrier frequency corresponding with the carrier frequency numbering closed, and the true cell that this carrier frequency is corresponding with this true cell numbering articulates, open the carrier frequency of above-mentioned correspondence again, after finishing these operations, carrier frequency returns complete confirmation to base station controller, after base station controller is received confirmation, with confirmation " EXECUTED; " feed back to background terminal.
Background terminal transmits the true cell open command to base station controller, comprising tested true cell numbering.After base station controller receives instruction, base station configuration data storehouse according to base station controller inside, send all carrier frequency that make under the true cell that is articulated in corresponding true cell numbering to the base station and send open command, each carrier frequency is received the restoring signal emission of instruction back, true cell is opened, finish these operations after, carrier frequency returns complete confirmation to base station controller, after base station controller is received confirmation, with confirmation " EXECUTED; " feed back to operating terminal.
In existing carrier frequency, each true cell is used independently radio-frequency channel (as antenna-feedback system), and different districts can not be shared radio-frequency channel (as antenna-feedback system); In the method that present embodiment provides, 2 or shared same radio-frequency channel (as antenna-feedback system), a plurality of residential quarter.It is hereby ensured intermodulation product frequency and level equalization.In addition, in true cell, comprise the indefinite TCH carrier frequency of 1 BCCH carrier frequency and quantity usually, in the present embodiment, each residential quarter only comprises 1 BCCH carrier frequency, does not comprise the TCH carrier frequency.It is hereby ensured intermodulation product frequency and level equalization; And the virtual subdistrict transmitting power is fixed as the maximum transmission power that carrier frequency is supported, the operating frequency that participates in two virtual subdistricts of intermodulation testing is respectively 76-94 number and the 1-19 frequency, the key of guaranteeing to hang down the intermodulation exponent number more and then guaranteeing high intermodulation level.Further, influence minimizes to live network can to forbid service access therefore guaranteeing test more in virtual subdistrict.
In the method for present embodiment, open under two kinds of patterns in the unlatching of single residential quarter and many residential quarters, front and back twice test frequency spectrum has essential distinction, the former is to disturb outside the residential quarter, do not comprise Intermodulation Interference, the latter be disturb outside the residential quarter with the residential quarter in the stack disturbed, comprised Intermodulation Interference, can draw Intermodulation Interference by both comparisons.This is the eliminating external disturbance, guarantees intermodulation testing key point accurately.
Device embodiment
Present embodiment provides a kind of base station controller, as shown in Figure 4, comprising: receiving element 41, generation unit 42, transmitting element 43.
Receiving element 41 is used for receiving the virtual subdistrict defined instruction from described background terminal, comprises in the described virtual subdistrict defined instruction according to the appointment frequency point information of user's input and the virtual parameter information of described configuration information generation; Generation unit 42, being used for according to described virtual parameter information is the generation information that the true cell configuration is used for the virtual subdistrict of Intermodulation Interference test; Transmitting element 43 is used for described generation information and sends to carrier frequency, so that described carrier frequency is according to the described virtual subdistrict for the Intermodulation Interference test of described generation information configuration, and carries out the Intermodulation Interference test.
Wherein, generation unit 42 comprises: logging modle 421, closing control module 422, relation change module 423.
Logging modle 421 is used for adding the virtual subdistrict record that comprises virtual parameter information in built-in cell data base;
Closing control module 422, be used for after the out code of closing true cell that receives from background terminal, comprise in the described out code: the true cell numbering in the described configuration information, and described out code sent to be articulated in described true cell numbering all carrier frequency down, be articulated in described true cell all carrier frequency under numbering to close;
Relation change module 423, be used for behind the carrier frequency and residential quarter locking relation alteration command that receive from described background terminal, comprise the virtual subdistrict numbering in the described configuration information in described carrier frequency and the residential quarter locking relation alteration command at least and be used for the carrier frequency numbering that the virtual subdistrict Intermodulation Interference is tested; And described virtual subdistrict numbering and virtual parameter information are sent to the carrier frequency of described carrier frequency numbering correspondence as the generation information of the virtual subdistrict that is used for the Intermodulation Interference test.
Preferentially, this base station controller also can comprise: recover control unit 44
Recover control unit 44, be used for after the recovery instruction that receives from described background terminal, with the described true cell reinstatement attitude of closing in the intermodulation testing.
The base station controller that present embodiment provides can dispose the generation information of its virtual subdistrict according to user's virtual subdistrict defined instruction etc. for tested true cell, be convenient to carrier frequency according to will generating the virtual subdistrict that information configuration goes out the hypothesis testing environment, and then obtained the technique effect of the accuracy that improves the Intermodulation Interference test.
System embodiment
Present embodiment provides a kind of test macro of Intermodulation Interference, and as shown in Figure 5, this system comprises: background terminal 51, base station controller 52 and carrier frequency 53;
Background terminal 51, be used for determining according to the hardware configuration information that obtains from base station controller 52 configuration information of tested hardware, the virtual parameter information that generates according to appointment frequency point information and the configuration information of user input, and the virtual subdistrict defined instruction that will comprise virtual parameter information sends to base station controller 52;
Base station controller 52 is used for after the virtual subdistrict defined instruction that receives from background terminal 51, is the generation information that the true cell configuration is used for the virtual subdistrict of Intermodulation Interference test according to virtual parameter information, and generation information is sent to carrier frequency 53;
Carrier frequency 53 is used for being used for the virtual subdistrict that Intermodulation Interference is tested according to generating information configuration, and carries out the Intermodulation Interference test.
More specifically, base station controller 52, concrete being used for added the virtual subdistrict record that comprises virtual parameter information in built-in cell data base, and after the out code of closing true cell that receives from background terminal, comprise in the out code: be used for the carrier frequency numbering of virtual subdistrict Intermodulation Interference test and corresponding true cell numbering in the configuration information; Out code is sent to carrier frequency 53; Carrier frequency 53, concrete being used for closes after receiving described out code; Next, base station controller 52, also concrete for behind the carrier frequency and residential quarter locking relation alteration command that receive from background terminal, at least comprise the virtual subdistrict numbering in the configuration information in carrier frequency and the residential quarter locking relation alteration command and be used for the carrier frequency numbering of virtual subdistrict Intermodulation Interference test, virtual subdistrict numbering and virtual parameter information are sent to the carrier frequency 53 of carrier frequency numbering correspondence as the generation information of the virtual subdistrict that is used for the Intermodulation Interference test; Correspondingly, carrier frequency 53 is used for generating the information configuration virtual subdistrict according to this.
In the test macro of the Intermodulation Interference that the embodiment of the invention provides, the virtual parameter information that base station controller can send over according to background terminal under the indication of virtual subdistrict defined instruction is the generation information that the true cell configuration is used for the virtual subdistrict of Intermodulation Interference test, so making intermodulation testing can carry out under desirable test environment, avoid being subjected to ectocine and inaccurate technical problem because true cell is carried out the test result that Intermodulation Interference test causes, and then obtained and can improve the intermodulation testing result precision, be convenient to the technique effect of location interference reason.
Through the above description of the embodiments, the those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium that can read, floppy disk as computer, hard disk or CD etc. comprise that some instructions are with so that an equipment (can be notebook computer etc.) is carried out the described method of each embodiment of the present invention.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection range with claim.
Claims (10)
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