CN101945402A - System and method for testing communication device signal receiving sensitivity - Google Patents
System and method for testing communication device signal receiving sensitivity Download PDFInfo
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Abstract
The invention relates to a System and method for testing communication device signal receiving sensitivity, which is applied to testing equipment and comprises the following steps: a communication device to be tested is put into a testing dark room; testing parameters are set in the testing device; controlling the testing device to transmit a signal to the communication device to be tested according to the set parameters; calculating the bit error rate; when the bit error rate is in the designated value range, acquiring RSCP of the communication device to be tested at the time; and calculating the signal receiving sensitivity of the communication device to be tested according to the acquired RSCP and the power of CPRCH in the set testing parameters. The invention also provides System and method for testing communication device signal receiving sensitivity.
Description
Technical field
The present invention relates to a kind of sensitivity test system and method, especially a kind of communication device signal receiving sensitivity test macro and method.
Background technology
Signal receiving sensitivity is a basic index weighing the communication device performance.Therefore, the accuracy of signal receiving sensitivity test seems especially important in all test events of communication device.In the signal receiving sensitivity test process, communication device to be measured need be placed in the test darkroom and test, with the interference of other electric waves of maximization shielding.Described test darkroom can be divided into standard testing darkroom and non-standard test darkroom.Described standard testing darkroom must be the rectangle of standard, and the antenna of transmission and received signal is necessary for horn antenna, and the size of the absorbing material of use must be calculated through special.Described non-standard darkroom can be the rectangle of standard, also can be taper, and the model and the classification of the antenna of transmission and received signal do not have specific (special) requirements, and the size of employed absorbing material does not have specific (special) requirements.In existing sensitivity test system and method, must use the standard testing darkroom to test and to guarantee the accuracy that signal receiving sensitivity is tested.But the price in standard testing darkroom is very expensive, and very high to the requirement of accessory, is not easy to safeguard and maintenance.
Summary of the invention
In view of above content, be necessary to provide a kind of communication device signal receiving sensitivity test macro, can under the situation that guarantees test accuracy, carry out the signal receiving sensitivity test to the communication device that is positioned in the non-standard test darkroom.
In addition, also be necessary to provide a kind of communication device signal receiving sensitivity method of testing, can under the situation that guarantees test accuracy, carry out the signal receiving sensitivity test the communication device that is positioned in the non-standard test darkroom.
A kind of communication device signal receiving sensitivity test macro, run in the testing equipment, described communication device to be measured is positioned in the test darkroom, this system comprises: module is set, be used in testing equipment test parameter being set, described test parameter comprises the frequency of the signal that needs emission and the power of acquiescence power, bit error rate specified scope and common pilot signal; Sending module is used to control testing equipment and gives communication device to be measured according to the frequency and the acquiescence power emission signal of the signal of set need emission; Computing module is used to control testing equipment and receives the signal that communication device to be measured returns, and the calculated signals bit error rate returned of the signal that sends according to described testing equipment and communication device to be measured; Processing module is used for when described bit error rate is not within specified scope, reset power that testing equipment transmits until bit error rate within this specified scope; Acquisition module is used for when described bit error rate is within this specified scope, obtains the received signal power of communication device to be measured this moment; Described computing module also is used for the power according to the received signal power of the communication device to be measured that is obtained and set common pilot signal, calculates communication device signal receiving sensitivity to be measured.
A kind of communication device signal receiving sensitivity method of testing, this method is applied in the testing equipment, described communication device to be measured is positioned in the test darkroom, the method comprising the steps of: test parameter is set in testing equipment, and described test parameter comprises the frequency of the signal that needs emission and the power of acquiescence power, bit error rate specified scope and common pilot signal; The control testing equipment transmits to communication device to be measured with the parameter of giving tacit consent to power according to the set frequency of the signal of emission that needs; The control testing equipment receives the signal that communication device to be measured returns, and the calculated signals bit error rate of sending according to described testing equipment that signal and communication device to be measured returned; When described bit error rate is not within specified scope, reset power that testing equipment transmits until bit error rate within this specified scope; When described bit error rate is within this specified scope, obtain the received signal power of communication device to be measured this moment; Power according to the received signal power of the communication device to be measured that is obtained and set common pilot signal calculates communication device signal receiving sensitivity to be measured.
Compared to prior art, described communication device signal receiving sensitivity test macro and method can be carried out the signal receiving sensitivity test to the communication device that is positioned in the non-standard test darkroom under the situation that guarantees test accuracy, reduced cost.
Description of drawings
Fig. 1 is the hardware structure figure of communication device signal receiving sensitivity test macro of the present invention preferred embodiment.
Fig. 2 is the functional block diagram of communication device signal receiving sensitivity test macro of the present invention.
Fig. 3 is the flow chart of communication device signal receiving sensitivity method of testing of the present invention preferred embodiment.
Embodiment
As shown in Figure 1, be the system architecture diagram of communication device signal receiving sensitivity test macro of the present invention preferred embodiment, this communication device signal receiving sensitivity test macro 10 runs in the testing equipment 1, is used to test the sensitivity of communication device 20 to be measured.Described testing equipment also comprises axis holding wire 12, is used for transmitting and receiving wireless signal.Described communication device to be measured 20 is positioned over the optional position in the test darkroom 2, and 2 inside, described test darkroom are provided with absorbing material, and set absorbing material is used to shield communication device 20 to be measured signal noise on every side.Described test darkroom 2 also comprises antenna 22, is used for transmitting and receiving wireless signal.Described test darkroom 2 can be standard testing darkroom or non-standard test darkroom.Described communication device 20 can be 3G mobile or other any suitable electronic installation.
As shown in Figure 2, be the functional block diagram of communication device signal receiving sensitivity test macro 10 of the present invention.Described communication device signal receiving sensitivity test macro 10 comprises module 100, sending module 101, computing module 102, judge module 103, processing module 104 and acquisition module 105 is set.The alleged module of the present invention is to finish the computer program code segments of a specific function, be more suitable in describing the implementation of software in computer than program, therefore below the present invention to all describing in the software description with module.
The described module 100 that is provided with is used for the frequency range supported according to communication device 20 to be measured and in testing equipment 1 frequency and the passage that transmits is set.In the present embodiment, be that example describes with 3G WCDMA communication system.Described 3G WCDMA communication system can be supported 9 different frequency ranges, and each frequency range comprises a fixing frequency range, and for example: frequency range 1 supports that tranmitting frequency is the signal of 1920-1980MHz, supports that receive frequency is the signal of 2110-2170MHz.If communication device 20 to be measured supports that transmit frequency band is the signal of 1920-1980MHz, receiving frequency range is the signal of 2110-2170MHz, then communication device 20 to be measured is being carried out signal receiving sensitivity when test that frequency is 2110MHz, it is 2110MHz that the module 100 need frequencies that setting transmits in testing equipment 1 are set, and the frequency of acknowledge(ment) signal is 1920MHz.
The described module 100 that is provided with also is used in testing equipment 1 path loss values being set.Described path loss values is meant that signal is sent to the performance number that communication device 20 to be measured is lost from the antenna 22 in test darkroom.
Described power and the default transmit power that module 100 also is used for being provided with in testing equipment 1 CPICH (common pilot channel, common pilot signal) is set.In the present embodiment, the performance number of described CPICH is set to 3.3dB, and described default transmit power is-50dB.
The described module 100 that is provided with also is used in testing equipment 1 BER (bit error, bit error rate) specified scope being set, and testing equipment 1 is set up communication with communication device 20 to be measured is connected.In the present embodiment, described BER specified scope is [0.09%, 0.1%], in other embodiments of the invention, described BER specified scope can also be other any suitable scopes, for example, and [0.09%, 0.11%], [0.08%, 0.09%], [0.08%, 0.11%] etc.
Described sending module 101 is used to control testing equipment 1 according to set frequency, passage, path loss values and default transmit power, gives communication device 20 to be measured by axis holding wire 12 emissions one signal.If the set frequency that transmits is 2110MHz, passage is 9612, default transmit power is-50dB, and path loss values is 10dB, and then to launch frequency be 2110MHz, power to sending module 101 gives communication device 20 to be measured for the signal of-50dB+10dB=-40dB by passage 9612.The signal that described testing equipment 1 is sent is to transmit with the form of binary code, and described communication device 20 to be measured returns the signal that is received to testing equipment 1 after receiving the signal that testing equipment 1 sends.
Described computing module 102 is used to control testing equipment 1 and receives the signal that communication device 20 to be measured returns by axis holding wire 12, and the calculated signals BER that returns of the signal that sends according to described testing equipment 1 and communication device to be measured 20.Described BER=(the total bit number of signal of bit number/transmission that inverse signal goes wrong) * 100%.In signal communication, if the signal that sends is " 1 ", and the signal that returns is " 0 ", and perhaps, if the signal that sends is " 0 ", and the signal that returns is " 1 ", and Here it is " bit that goes wrong in the inverse signal ".For example: if the signal that testing equipment 1 is sent is 01010101010101010101, the signal that is received that communication device 20 to be measured returns is 01011111010101010101, comparing, can to obtain the bit number that inverse signal goes wrong be 2, the total bit number of signal that sends is 20, then the BER=of this transmission (2/20) * 100%=10%.
Described judge module 103 is used to judge described BER whether within the BER specified scope, judges that promptly described BER is whether within [0.09%, 0.1%] scope.
Described processing module 104 is used for resetting the power that testing equipment 1 transmits when described BER is not within the BER specified scope.For example: if the power that transmits of testing equipment 1 is during for-50dB, when described BER greater than BER specified scope higher limit (for example: in the time of 0.1%), processing module 104 increases 1dB with the power that testing equipment 1 transmits, at this moment, the power that testing equipment 1 transmitted after processing module 104 was handled is-50dB+1dB=-49dB; (for example: in the time of 0.09%), processing module 104 reduces 1dB with the power that testing equipment 1 transmits, and at this moment, the power that testing equipment 1 transmitted after processing module 104 was handled is-50dB-1dB=-51dB less than BER specified scope lower limit as BER.
Described acquisition module 105 is used for when described BER is within the BER specified scope, obtains the RSCP (received signal code power, received signal power) of communication device 20 to be measured this moment.Described communication device to be measured 20 is whenever received the signal that a testing equipment is sent, and will return corresponding RSCP to testing equipment 1.
Described computing module 102 also is used for according to RSCP that is obtained and set CPICH value, calculates communication device 20 signal receiving sensitivities to be measured.Described communication device signal receiving sensitivity=RSCP+CPICH.
Described judge module 103 also is used to judge whether to continue to test the signal receiving sensitivity of communication device 20 to be measured at other frequencies and passage.
As shown in Figure 3, be the flow chart of communication device signal receiving sensitivity method of testing of the present invention preferred embodiment.
Step S10 is provided with the frequency range that module 100 supported according to communication device 20 to be measured frequency and the passage that transmits is set in testing equipment 1.For example: if communication device to be measured 20 supports that transmit frequency band is the signal of 1920-1980MHz, receiving frequency range is the signal of 2110-2170MHz, then communication device 20 to be measured is being carried out signal receiving sensitivity when test that frequency is 2110MHz, it is 2110MHz that the module 100 need frequencies that setting transmits in testing equipment 1 are set, and the frequency of acknowledge(ment) signal is 1920MHz.
Step S11 is provided with module 100 and in testing equipment 1 path loss values is set.Described path loss values is meant that signal is sent to the performance number that communication device 20 to be measured is lost from the antenna 22 in test darkroom.
Step S12 is provided with module 100 is provided with CPICH (common pilot channel, common pilot signal) in testing equipment 1 power and default transmit power.In the present embodiment, the performance number of described CPICH is set to 3.3dB, and described default transmit power is 50dB.
Step S13 is provided with module 100 BER (bit error, bit error rate) specified scope is set in testing equipment 1, and testing equipment 1 is set up communication with communication device 20 to be measured is connected.In the present embodiment, described BER specified scope is [0.09%, 0.1%], in other embodiments of the invention, described BER specified scope can also be other any suitable scopes, for example, and [0.09%, 0.11%], [0.08%, 0.09%], [0.08%, 0.11%] etc.
Step S14, sending module 101 control testing equipments 1 are given communication device 20 to be measured according to set frequency, passage, path loss values and default transmit power by axis holding wire 12 emissions one signal.For example: if the set frequency that transmits is 1920MHz, passage is 9612, default transmit power is-50dB, path loss values is 10dB, and then to launch frequency be 1920MHz, power to sending module 101 gives communication device 20 to be measured for the signal of-50dB+10dB=-40dB-40dB by passage 9612.The signal that described testing equipment 1 is sent is to transmit with the form of binary code, and described communication device 20 to be measured returns the signal that is received to testing equipment 1 after receiving the signal that testing equipment 1 sends.
Step S15, computing module 102 control testing equipments 1 receive the signal that is received that communication device 20 to be measured returns by axis holding wire 12, and the calculated signals BER that received of the signal that sends according to described testing equipment 1 and communication device to be measured 20.Described BER=(the total bit number of signal of bit number/transmission that inverse signal goes wrong) * 100%.In signal communication, if the signal that sends is " 1 ", and the signal that returns is " 0 ", and perhaps, if the signal that sends is " 0 ", and the signal that returns is " 1 ", and Here it is " bit that goes wrong in the inverse signal ".For example: if the signal that testing equipment 1 is sent is 01010101010101010101, the signal that is received that communication device 20 to be measured returns is 01011111010101010101, comparing, can to obtain the bit number that inverse signal goes wrong be 2, the total bit number of signal that sends is 20, then the BER=of this transmission (2/20) * 100%=10%.
Step S16, judge module 103 judge described BER whether within the BER specified scope, judge that promptly described BER is whether within [0.09%, 0.1%] scope.
Step S17, when described BER was not within the BER specified scope, processing module 104 was reset the power that testing equipment 1 transmits.For example: if the power that transmits of testing equipment 1 is during for-50dB, when described BER greater than BER specified scope higher limit (for example: in the time of 0.1%), processing module 104 increases 1dB with the power that testing equipment 1 transmits, at this moment, the power that testing equipment 1 transmitted after processing module 104 was handled is-50dB+1dB=-49dB; (for example: in the time of 0.09%), processing module 104 reduces 1dB with the power that testing equipment 1 transmits, and at this moment, the power that testing equipment 1 transmitted after processing module 104 was handled is-50dB-1dB=-51dB less than BER specified scope lower limit as BER.
Step S18, when described BER was within specified scope, acquisition module 105 obtained the RSCP (received signal code power, received signal power) of communication device 20 to be measured this moment.Described communication device to be measured 20 is whenever received the signal that a testing equipment 1 is sent, and will return corresponding RSCP to testing equipment 1.
Step S19, computing module 102 calculate communication device 20 signal receiving sensitivities to be measured according to RSCP that is obtained and set CPICH value.Described communication device signal receiving sensitivity=RSCP+CPICH.
Step S20, judge module 103 judge whether to continue to test the signal receiving sensitivity of communication device 20 to be measured at other frequencies and passage.Continue of the sensitivity of test communication device 20 to be measured if judge module 103 is judged, then be back to step S10 at other frequencies and passage.
It should be noted that at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the spirit and scope of technical solution of the present invention.
Claims (10)
1. a communication device signal receiving sensitivity test macro runs in the testing equipment, and described communication device to be measured is positioned in the test darkroom, it is characterized in that this system comprises:
Module is set, is used in testing equipment test parameter being set, described test parameter comprises the frequency of the signal that needs emission and the power of acquiescence power, bit error rate specified scope and common pilot signal;
Sending module is used to control testing equipment and gives communication device to be measured according to the frequency and the acquiescence power emission signal of the signal of set need emission;
Computing module is used to control testing equipment and receives the signal that communication device to be measured returns, and the calculated signals bit error rate returned of the signal that sends according to described testing equipment and communication device to be measured;
Processing module is used for when described bit error rate is not within specified scope, reset power that testing equipment transmits until bit error rate within this specified scope;
Acquisition module is used for when described bit error rate is within this specified scope, obtains the received signal power of communication device to be measured this moment;
Described computing module also is used for the power according to the received signal power of the communication device to be measured that is obtained and set common pilot signal, calculates communication device signal receiving sensitivity to be measured.
2. communication device signal receiving sensitivity test macro as claimed in claim 1 is characterized in that this system also comprises:
Judge module is used to judge whether to continue to test the signal receiving sensitivity of communication device to be measured at other frequencies and passage.
3. communication device signal receiving sensitivity test macro as claimed in claim 1 is characterized in that described test parameter also comprises: the path loss values in passage that testing equipment transmits and test darkroom.
4. communication device signal receiving sensitivity test macro as claimed in claim 1 is characterized in that the scope of described bit error rate designated value is [0.09%, 0.1%].
5. communication device signal receiving sensitivity test macro as claimed in claim 1 is characterized in that, the power of the common pilot signal of the received signal power of described communication device signal receiving sensitivity=communication device to be measured+set.
6. communication device signal receiving sensitivity method of testing, this method is applied in the testing equipment, and described communication device to be measured is positioned in the test darkroom, it is characterized in that the method comprising the steps of:
Test parameter is set in testing equipment, and described test parameter comprises the frequency of the signal that needs emission and the power of acquiescence power, bit error rate specified scope and common pilot signal;
The control testing equipment transmits to communication device to be measured with the parameter of giving tacit consent to power according to the set frequency of the signal of emission that needs;
The control testing equipment receives the signal that communication device to be measured returns, and the calculated signals bit error rate of sending according to described testing equipment that signal and communication device to be measured returned;
When described bit error rate is not within specified scope, reset power that testing equipment transmits until bit error rate within this specified scope;
When described bit error rate is within this specified scope, obtain the received signal power of communication device to be measured this moment;
Power according to the received signal power of the communication device to be measured that is obtained and set common pilot signal calculates communication device signal receiving sensitivity to be measured.
7. communication device signal receiving sensitivity method of testing as claimed in claim 6 is characterized in that this method also comprises step:
Judge whether to continue to test the signal receiving sensitivity of communication device to be measured at other frequencies and passage.
8. communication device signal receiving sensitivity method of testing as claimed in claim 6 is characterized in that described test parameter also comprises: the path loss values in passage that testing equipment transmits and test darkroom.
9. communication device signal receiving sensitivity method of testing as claimed in claim 6 is characterized in that the scope of described bit error rate designated value is [0.09%, 0.1%].
10. communication device signal receiving sensitivity method of testing as claimed in claim 6 is characterized in that, the power of the common pilot signal of the received signal power of described communication device signal receiving sensitivity=communication device to be measured+set.
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| CN2009103040955A CN101945402B (en) | 2009-07-07 | 2009-07-07 | System and method for testing communication device signal receiving sensitivity |
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| CN2009103040955A CN101945402B (en) | 2009-07-07 | 2009-07-07 | System and method for testing communication device signal receiving sensitivity |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011144133A2 (en) * | 2011-06-01 | 2011-11-24 | 华为技术有限公司 | A method, device and system for monitoring optical loss in optical network system |
| CN106788802A (en) * | 2016-12-15 | 2017-05-31 | 广东欧珀移动通信有限公司 | Receiving sensitivity method of testing, device and terminal |
| CN107465469A (en) * | 2017-08-29 | 2017-12-12 | 努比亚技术有限公司 | A kind of receiving sensitivity method of testing, test device and computer-readable recording medium |
| CN112040439A (en) * | 2020-07-27 | 2020-12-04 | 深圳市金溢科技股份有限公司 | OBU radio frequency parameter calibration method, OBU device, radio frequency device and system |
| CN113014335A (en) * | 2021-03-03 | 2021-06-22 | Tcl通力电子（惠州）有限公司 | Total omnidirectional sensitivity test method, equipment, system and storage medium |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011144133A2 (en) * | 2011-06-01 | 2011-11-24 | 华为技术有限公司 | A method, device and system for monitoring optical loss in optical network system |
| WO2011144133A3 (en) * | 2011-06-01 | 2012-05-03 | 华为技术有限公司 | A method, device and system for monitoring optical loss in optical network system |
| CN106788802A (en) * | 2016-12-15 | 2017-05-31 | 广东欧珀移动通信有限公司 | Receiving sensitivity method of testing, device and terminal |
| CN107465469A (en) * | 2017-08-29 | 2017-12-12 | 努比亚技术有限公司 | A kind of receiving sensitivity method of testing, test device and computer-readable recording medium |
| CN107465469B (en) * | 2017-08-29 | 2021-04-30 | 努比亚技术有限公司 | Receiving sensitivity testing method, testing device and computer readable storage medium |
| CN112040439A (en) * | 2020-07-27 | 2020-12-04 | 深圳市金溢科技股份有限公司 | OBU radio frequency parameter calibration method, OBU device, radio frequency device and system |
| CN112040439B (en) * | 2020-07-27 | 2024-05-31 | 深圳市金溢科技股份有限公司 | OBU radio frequency parameter calibration method, OBU device, radio frequency device and system |
| CN113014335A (en) * | 2021-03-03 | 2021-06-22 | Tcl通力电子（惠州）有限公司 | Total omnidirectional sensitivity test method, equipment, system and storage medium |
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| CN101945402B (en) | 2013-04-24 |
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