CN1787411B - System for testing multi-path fading of mobile terminal in mobile communication network and testing method thereof - Google Patents
System for testing multi-path fading of mobile terminal in mobile communication network and testing method thereof Download PDFInfo
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- CN1787411B CN1787411B CN2005101044173A CN200510104417A CN1787411B CN 1787411 B CN1787411 B CN 1787411B CN 2005101044173 A CN2005101044173 A CN 2005101044173A CN 200510104417 A CN200510104417 A CN 200510104417A CN 1787411 B CN1787411 B CN 1787411B
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Abstract
This invention discloses a multi-path decline test system and a method for terminals of the mobile communication network including a noise interference signal simulator connected with the tested mobile terminal, a RF channel simulator connected with the noise interference signal simulator, a radio combined tester connected with the two simulators, in which, a quality certification control device is connected with them via GPIB cable and transmits the control signals and test data via GPIB bus.
Description
Technical field
The present invention relates to the test of cdma mobile communication terminal in the moving communicating field, be specifically related to the multipath fading Auto-Test System and the method for testing thereof of portable terminal in the cdma communication network.
Background technology
Mobile telecommunication channel has some characteristics itself in transmission course, as can reflect, diffraction, scattering phenomenon.The signal that mobile terminal antenna is received has direct wave, reflected wave and scattered wave, and along with the moving of mobile terminal locations, the amplitude of ripple, phase place and time delay change whenever and wherever possible, so the signal level that portable terminal receives is unsettled.
Multipath fading in the mobile communication is meant that wireless signal is before arriving receiver after the transmission antennas transmit, can be repeatedly by different barrier reflections, form mulitpath, every paths is all through in various degree decay and delay, wireless signal on every paths is in the stack of the reception antenna place of portable terminal, phase place near the time signal strengthen, signal weakening when phase place is opposite, signal fluctuation can reach tens dB, so the multipath fading phenomenon in the radio communication has very significant effects for the signal receiving performance of portable terminal.
Cdma mobile terminal solves multipath fading problem in the wireless environment by diversity receiving technology, need can test under the environment of simulating multi-path decline at one for portable terminal signal receiving performance index.
Present method of testing is manually to carry out control operation manually, owing to need the multipath fading environments of radio channel under the multiple situation of simulation, testing procedure is various, instrument parameter configuration operation complexity, artificial degree of participation height, holding time is a lot, and present method of testing automaticity is very low, inefficiency can't be realized the requirement of the quick test of portable terminal.
Summary of the invention
Purpose of the present invention, just be to solve the multipath fading test operation complexity of portable terminal, automaticity is low, the problem of precision of test result and consistency difference, a kind of system and the method for testing thereof that can test automatically the multipath fading radio-frequency (RF) index of portable terminal is provided, the multipath fading effect of the present invention in can the analog wireless communication real network, obtain the index of portable terminal at multipath fading environments ventrocephalad primary channel demodulation performance, realized the performance of receiver is tested automatically, to guarantee the reliability of portable terminal in real network.The present invention can carry out the receiver performance test in earlier stage to the mobile phone research and development provides Auto-Test System and method of testing thereof, has strengthened the automaticity of multipath fading test greatly, can improve the operating efficiency of test significantly.
For achieving the above object, the system for testing multi-path fading of portable terminal among the present invention, comprise the noise interferences simulator that is connected with tested mobile terminal, the radio-frequency channel simulator that is connected with the noise interferences simulator, the wireless composite tester that is connected with the noise interferences simulator with the radio-frequency channel simulator, the quality authentication test control device is by GPIB cable and noise interferences simulator, the radio-frequency channel simulator, the wireless composite tester is connected, and carry out the transmission of control signal and test data by gpib bus, quality authentication test control device control wireless composite tester emitting radio frequency signal enters the radio-frequency channel simulator, and configuration radio-frequency channel simulator forms mulitpath and simulation Rayleigh fading environment, quality authentication test control device configuration noise interferences simulator adds white Gaussian noise in radiofrequency signal, regulate output level, the loop device of radiofrequency signal is provided, makes and set up conversation between wireless composite tester and the portable terminal to be measured and be connected.
The quality authentication test control device comprises the test event storehouse, and system's input principal parameter table and destination file are preserved module, comprise the test frequency range in the test event storehouse, the parameter setting of test event and index setting.When formulating the test plan of portable terminal, can from the test event storehouse, select needed test event, test item aim sequence and concrete parameter are edited.System's input principal parameter table can be provided with some parameters relevant with test macro, comprises the basic parameter setting of wireless composite tester, radio-frequency channel simulator and noise interferences simulator.Destination file is preserved the test data after module can be preserved each test plan end automatically.
In order to guarantee the precision and the reliability of the test of portable terminal quality authentication, system for testing multi-path fading should be operated in the shielded enclosure, perhaps tested mobile terminal is positioned over isolation and is not less than in the shielded box of 60dB.
The multipath fading method of testing of portable terminal in a kind of mobile communications network may further comprise the steps:
In the quality authentication test control device, select the frequency range classification, input system test principal parameter, the basic parameter of configuration wireless composite tester, radio-frequency channel simulator and noise interferences simulator.
Set up test plan, each test event of portable terminal is carried out parameter setting and test index setting.
The quality authentication test control device enters the radio-frequency channel simulator by GPIB control card and gpib bus control wireless composite tester emitting radio frequency signal, and configuration radio-frequency channel simulator forms mulitpath and simulation Rayleigh fading environment, radiofrequency signal is under the Rayleigh fading environment that the radio-frequency channel simulator is simulated, become through the radiofrequency signal after mulitpath and the Rayleigh fading, the noise interferences of quality authentication test control device configuration simultaneously simulator adds white Gaussian noise in radiofrequency signal, regulate output level, the loop device of radiofrequency signal is provided, makes and set up conversation between wireless composite tester and the portable terminal to be measured and be connected;
Portable terminal is after demodulating the radiofrequency signal that the wireless composite tester sends, loop device by the noise interferences simulator turns back to the wireless composite tester to restituted signal, the wireless composite tester tests out the reception frame error rate of mobile phone, and the portable terminal that is in the talking state carried out various testing performance indexes, the quality authentication test control device reads test result in the wireless composite tester by GPIB control card and gpib bus;
The wireless composite tester termination signaling that makes a call, finish and tested mobile terminal between the conversation connection status.
This method can be supported the test of US Cellular and two frequency ranges of PCS CDMA terminal, can select different CDMA 800MHz Cellular and 1900MHz PCS test frequency range according to concrete needs.
Portable terminal is after demodulating the radiofrequency signal that the wireless composite tester sends, loop device by the noise interferences simulator turns back to the wireless composite tester to restituted signal, the wireless composite tester tests out the reception frame error rate of mobile phone, and the portable terminal that is in the talking state is carried out various testing performance indexes.The quality authentication test control device reads the test result in the wireless composite tester, compares with the index of setting, and judges whether this performance meets testing standard, and the test result of every test is stored.
The base station power when setting up the conversation step of connecting between wireless composite tester and the portable terminal and needing the setting wireless comprehensive tester to work and the Traffic Channel of base station simulator number in the base station simulator mode.
The multipath fading method of testing of portable terminal also comprises channel switch test project in the mobile communications network, and channel switch test project has following steps:
The wireless composite tester sends a switch indicating information, orders portable terminal to be measured to carry out direct-cut operation;
After portable terminal to be measured receives switch indicating information, switch at the interchannel of different frequency;
The quality authentication test control device is measured the time that portable terminal is finished direct-cut operation, and detects whether closed transmitter when portable terminal switches between different frequencies.
Direct-cut operation is a feature with the interim interruption of Traffic Channel.This switching is the switching between the different base station, the switching under switching under the different assigned frequencies or the different frame skew.
The multipath fading method of testing of portable terminal also comprises the wait test event, the stand-by period parameter is the time that is used for being provided with wait between test event, test event stand-by period parameter can be imported a concrete time numerical value, and default value is 1, waits for that unit is second.
The present invention can finish the automatic test of preceding paragraph Traffic Channel demodulation project under the CDMA 800MHz Cellular/1900MHz PCS frequency range multipath fading condition, obtain the signal receiving performance index of portable terminal under multipath fading environments, this test macro and method thereof have strengthened the automaticity of multipath fading test greatly, can improve the operating efficiency of test significantly.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described.
Fig. 1 is a test macro connection side block diagram of the present invention;
Fig. 2 is the radiofrequency signal connection diagram of test macro of the present invention;
Fig. 3 is the control signal connection diagram of test macro of the present invention;
Fig. 4 is the GPIB address assignment figure of equipment in the test macro of the present invention;
Fig. 5 is the flow chart of method of testing of the present invention;
Fig. 6 is a multipath fading situation configuration schematic diagram of the present invention.
Embodiment
As shown in Figure 1, comprise noise interferences simulator, radio-frequency channel simulator, wireless composite tester and quality authentication control testing apparatus in the test macro.The noise interferences simulator that is connected with tested mobile terminal, the radio-frequency channel simulator that is connected with the noise interferences simulator, and the wireless composite tester that is connected with the noise interferences simulator with the radio-frequency channel simulator, quality authentication control testing apparatus is connected with noise interferences simulator, radio-frequency channel simulator, wireless composite tester by the GPIB cable, carries out the transmission of control signal and test data by gpib bus.
The radio-frequency channel simulator is the analog radio frequency multidiameter fading channel in test macro, provide test needed various multipath fading environments, the noise interferences simulator adds white Gaussian noise, regulate output level, the loop device of signal is provided simultaneously, and the carrier-to-noise ratio of the radiofrequency signal of final decision output, the wireless composite tester is operated in test macro under the base station simulator mode, can with portable terminal to be measured between set up the data Loopback Mode conversation be connected, simultaneously the portable terminal that is in the talking state is carried out the test of various performance index.
Wherein the noise interferences simulator adopts Spirent company's T AS4600 model, the radio-frequency channel simulator adopts Spirent company's T AS4500 model, the wireless composite tester adopts the Agilent E5515C of company model, the DUPLEX port that connects portable terminal to be measured and noise simulator TAS4600 passage 1 by radio frequency cable, the loss of this section radio frequency cable on portable terminal work centre frequency to be measured needs in the input system parameter list, and noise interferences simulator TAS4600 can be compensated path loss when the conditioning signal level.
As shown in Figure 2, the wireless composite tester sends signal from RF Out radiofrequency signal output port, enter the RF In port of radio-frequency channel simulator TAS4500 passage 1 (Channel 1), the multipath fading environment of a simulation is provided in the passage 1, thereby make signal pass through the environment of a simulation actual wireless communication channel, RF Out end output from passage 1, enter the RF In port of the passage 1 (Channel 1) of noise interferences simulator TAS4600 then, be conditioned output level at noise interferences simulator signal, and after adding the white Gaussian noise of setting, arrive tested mobile terminal from the RF Duplex out end output of noise interferences simulator TAS4600 passage 1, the RFout of noise interferences simulator TAS4600 passage 1 provides a signal loop device, the inverse signal of tested mobile terminal directly enters the wireless composite tester through the loop device and tests from the RFin port, thereby has realized the test to the portable terminal receiver demodulation performance under the multipath fading environments.Do not use the radio-frequency channel 2 (Channel 2) of radio-frequency channel simulator TAS4500 and noise interferences simulator TAS4600 in the native system.
As shown in Figure 3, it is the connection state of the control signal of test macro, quality authentication control testing apparatus and wireless composite tester, the radio-frequency channel simulator, control by gpib bus between each instrument of noise interferences simulator, GPIB card of configuration on the quality authentication control testing apparatus, as communicating devices between above-mentioned instrument and equipment, can carry out the connection of equipment room with star-like or line style mode, the 10MHz signal that the reference signal that synchronizing signal refers to above-mentioned each instrument all provides with the local oscillator of wireless composite tester is as the reference frequency reference signal, reach the purpose of same frequency between each instrument, synchronizing signal is come out from the 10MHz Out port of wireless composite tester respectively, enters into the 10MHz In of radio-frequency channel simulator TAS4500 and noise interferences simulator TAS4600.
As shown in Figure 4, in test macro, each instrument and equipment is assigned with a different GPIB address, as the diacritics of GPIB controller to instrument control.Can be the GPIB address setting of wireless composite tester 14, the GPIB address setting of radio-frequency channel simulator be 15, and the GPIB address setting of noise interferences simulator is 16.
The quality authentication test control device is the core of this system, mainly comprise two modules, automatic testing equipment comprises main control module and dynamic link libraries module two parts, main control module is whole management control interface, be responsible for I/O demonstration, the responsing control command of test data, and finish operation control the bottom instrument with the cooperation of dynamic link libraries module; The dynamic link libraries module section then mainly is responsible for driving tester, reads result data, and communicates with application layer.
The quality authentication test control device comprises the test event storehouse, and system's input parameter module and destination file are preserved module, comprise the test frequency range in the test event storehouse, the parameter setting of test event and index setting.Can from the test event storehouse, select the test event that needs when formulating the test plan of portable terminal, to the test item aim sequence and specifically parameter edit.System's input parameter table module is provided with some parameters relevant with test macro, comprises the parameter setting of base station simulator, radio-frequency channel simulator and noise interferences simulator.Destination file is preserved the test data after module can be preserved each EOT automatically.
As shown in Figure 5, the system flow chart of method of testing has been represented the multipath fading method of testing of portable terminal in the mobile communications network, may further comprise the steps:
Select the frequency range classification in the quality authentication test control device, input system test principal parameter is controlled the basic parameter that is configured wireless composite tester, radio-frequency channel simulator and noise interferences simulator by gpib bus.
Set up test plan, each test event of portable terminal is carried out parameter setting and test index setting.
Tested mobile terminal signs in to the wireless composite tester, and the wireless composite tester obtains the log-on message of tested mobile terminal, is connected with foundation conversation between the portable terminal.
The quality authentication test control device is tested each project in the test plan successively, and the good frame number that number and portable terminal received of the frame that wireless composite tester statistics is sent is calculated the frame error rate FER of portable terminal under every kind of data rate;
The wireless composite tester termination signaling that makes a call, finish and tested mobile terminal between the conversation connection status.
The quality authentication test control device enters the radio-frequency channel simulator by GPIB control card and gpib bus control wireless composite tester emitting radio frequency signal, and configuration radio-frequency channel simulator forms mulitpath and simulation Rayleigh fading environment, radiofrequency signal is under the Rayleigh fading environment that the radio-frequency channel simulator is simulated, become through the radiofrequency signal after mulitpath and the Rayleigh fading, the noise interferences of quality authentication test control device configuration simultaneously simulator adds white Gaussian noise in radiofrequency signal, regulate output level, the loop device of radiofrequency signal is provided, makes and set up conversation between wireless composite tester and the portable terminal to be measured and be connected.
Portable terminal is after demodulating the radiofrequency signal that the wireless composite tester sends, loop device by the noise interferences simulator turns back to the wireless composite tester to restituted signal, the wireless composite tester tests out the reception frame error rate of mobile phone, and the portable terminal that is in the talking state is carried out various testing performance indexes.The quality authentication test control device reads the test result in the wireless composite tester, compares with the index of setting, and judges whether this performance meets testing standard, and the test result of every test is stored.
Remaining mass authentication test control device generates database file with above-mentioned test result, to comparing judgement between above-mentioned test event and the test index setting, judges whether the performance of received signal under the portable terminal multipath fading environments meets index request.
This method can be supported the test of US Cellular and two frequency ranges of PCS CDMA terminal, can select different CDMA 800MHz Cellular and 1900MHz PCS test frequency range according to concrete needs.
The demodulation performance of forward traffic channel is determined with FER (Floating Error Rate) (FER) or with the error rate of every kind of frame category in the multidiameter fading channel.To each single data rate calculation FER.Fig. 6 has shown the decline test that need carry out:
CDMA 800MHz Cellular frequency range is finished 23 tests under 6 kinds of situations;
CDMA 1900MHz PCS frequency range is finished 16 tests under 5 kinds of situations.
Test event in the test event storehouse is the component of test plan in the CDMA multipath fading system.A plurality of test item destination aggregation (mda)s constitute a test plan.When test plan was carried out, wherein each test event carried out in proper order, thereby realizes the test function that whole test plan will be finished.Each test event in the test event storehouse is finished a kind of corresponding test function respectively, and the user can select test event and joins in the test plan of oneself according to the thermometrically needs of oneself from the test event storehouse.Each test event has the parameter setting, three kinds of attributes of index setting and user's remarks.The user can edit and revise these the three kinds of attributes in the test event, default parameter setting and index setting that also can the use test project; Default user's remarks attribute is blank, and the user can carry out user's remarks to the test event in the test plan as required, finishes by user's remarks attribute of editor's test event.In the test event storehouse of system for testing multi-path fading, include 11 test events altogether.Each test event is wherein carried out a kind of specific test function respectively.
Most of project in these test events is used for finishing a test, and the sub-fraction project is used for realizing the miscellaneous function of testing, and each test event comprises three kinds of attributes, and promptly parameter sets a property, and index sets a property and user's remarks attribute.
Parameter sets a property and is used for setting input parameter to this test event, makes portable terminal to be measured be provided with under the situation in this parameter and tests;
Index sets a property and is used to set the last Lower Threshold of test event index, thinks that this test result is qualified if test result drops in the threshold range up and down of this index regulation, otherwise thinks defective;
User's remarks attribute is used for for the label character of user's input to this test event.
Below the test event in the test event storehouse is specifically described:
1, portable terminal login
Portable terminal login test event is finished portable terminal and is signed in to the function that the wireless composite tester is operated in base station simulator.Connection state as shown in Figure 7.
The input parameter of portable terminal login test event has only one, and is as shown in the table:
| The input parameter sequence number | The input parameter title | The input parameter default value | |
| 1 | Register?Time | 30 | Second |
Register Time: set the upper limit that portable terminal to be measured signs in to the wireless comprehensive test instrument required time,, then think portable terminal login test failure if in this time span, do not sign in on the comprehensive test instrument.
2, connect
The test event that connects is a complementary test event, and major function is to set up portable terminal to be measured to be connected with conversation between the base station simulator.
The input parameter of the test event that connects has two, and is as shown in the table:
| The input parameter sequence number | The input parameter title | The input parameter default value | |
|
| 1 | Cell?Power | - | dBm | |
| 2 | Channel | 384 |
Cell Power is the base station power of setting wireless comprehensive test instrument when working in the base station simulator mode.
Channel is a Traffic Channel number of setting base station simulator.
3, US Cellular/PCS channel switches (Handoff)
Base station simulator orders portable terminal to be measured to carry out direct-cut operation by sending an extended handoff direction messages.At this moment, portable terminal to be measured switches between the base station of different assigned frequencies.Interim interruption with Traffic Channel is the character representation direct-cut operation.
4, the demodulation of multipath fading ventrocephalad primary channel
Test portable terminal to be measured demodulation ability to Traffic Channel under the multipath fading condition.Wireless composite tester and noise jamming signal simulator are connected to mobile terminal antenna connector place.
For every kind of frequency range classification that portable terminal is supported, be mobile terminal configuration such other frequency range.
The parameter of every kind of test event is set, can from the test event storehouse of quality authentication test control device, selects test event, and the order and the concrete parameter of test event is configured.
The good frame number that number and portable terminal received of the frame that wireless composite tester counting is sent.
The test input parameter mainly contains:
Ior/Ioc: the total transmit power spectral density of the Forward CDMA Channel that the base station sends and the ratio of the white noise power spectral density of limited bandwidth;
Ioc: the white noise power spectral density of limited bandwidth;
Pilot Ec/Ior: the average transmission energy of the every PN chip of pilot channel and the ratio of transmit power spectral density;
Confidence (%): confidence level;
Max Frames: maximum frame number;
The overtime setting of Timeout (Sec.);
Traffic Ec/Ior Test1: the average transmission energy of the every PN chip of Traffic Channel and the ratio of total transmit power spectral density;
Traffic Ec/Ior Test2: the average transmission energy of the every PN chip of Traffic Channel and the ratio of total transmit power spectral density;
Traffic Ec/Ior Test3: the average transmission energy of the every PN chip of Traffic Channel and the ratio of total transmit power spectral density;
Waiting Time (Sec.): the stand-by period is provided with.
5, be set the stand-by period
Wait for that test event is used for being provided with the time of wait between test event.Wait for that test event has an input parameter: the stand-by period, default value is 1, and unit is second.
6, wireless composite tester terminated call
Wireless composite tester terminated call test event is a complementary test event, the function of its execution is to make a call when being operated in the base station simulator state by the wireless composite tester to stop order, the conversation connection status between end and the portable terminal to be measured.
Claims (12)
1. the system for testing multi-path fading of portable terminal in the mobile communications network, comprise the noise interferences simulator that is connected with tested mobile terminal, the radio-frequency channel simulator that is connected with the noise interferences simulator, the wireless composite tester that is connected with the noise interferences simulator with the radio-frequency channel simulator, the quality authentication test control device is by GPIB cable and noise interferences simulator, the radio-frequency channel simulator, the wireless composite tester is connected, and carry out the transmission of control signal and test data by gpib bus, quality authentication test control device control wireless composite tester emitting radio frequency signal enters the radio-frequency channel simulator, and configuration radio-frequency channel simulator forms mulitpath and simulation Rayleigh fading environment, quality authentication test control device configuration noise interferences simulator adds white Gaussian noise in radiofrequency signal, regulate output level, the loop device of radiofrequency signal is provided, makes and set up conversation between wireless composite tester and the portable terminal to be measured and be connected.
2. the system for testing multi-path fading of portable terminal in the communication network according to claim 1 is characterized in that described quality authentication test control device comprises the test event storehouse, and system's input principal parameter table and destination file are preserved module.
3. the system for testing multi-path fading of portable terminal in the communication network according to claim 2, it is characterized in that having in the test event storehouse selection of test frequency range, the parameter setting of test event and index setting, when formulating the test plan of portable terminal, can from the test event storehouse, select needed test event, test item aim sequence and concrete parameter are edited.
4. the system for testing multi-path fading of portable terminal in the communication network according to claim 2, it is characterized in that in system's input principal parameter table some parameters relevant with test macro being set, comprise the basic parameter setting of wireless composite tester, radio-frequency channel simulator and noise interferences simulator, destination file is preserved the test data after module can be preserved each test plan end automatically.
5. according to the system for testing multi-path fading of portable terminal in the described communication network of any claim of claim 1 to 4, be placed in the shielded enclosure when it is characterized in that system for testing multi-path fading work, tested mobile terminal be positioned over isolation be not less than in the shielded box of 60dB.
6. the multipath fading method of testing of portable terminal in the mobile communications network is characterized in that may further comprise the steps:
(1) in the quality authentication test control device, selects the frequency range classification, input system test principal parameter, the basic parameter of configuration wireless composite tester, radio-frequency channel simulator and noise interferences simulator;
(2) set up test plan, each test event of portable terminal is carried out parameter setting and test index setting;
(3) the quality authentication test control device enters the radio-frequency channel simulator by GPIB control card and gpib bus control wireless composite tester emitting radio frequency signal, and configuration radio-frequency channel simulator forms mulitpath and simulation Rayleigh fading environment, radiofrequency signal is under the Rayleigh fading environment that the radio-frequency channel simulator is simulated, become through the radiofrequency signal after mulitpath and the Rayleigh fading, the noise interferences of quality authentication test control device configuration simultaneously simulator adds white Gaussian noise in radiofrequency signal, regulate output level, the loop device of radiofrequency signal is provided, makes and set up conversation between wireless composite tester and the portable terminal to be measured and be connected;
(4) portable terminal is after demodulating the radiofrequency signal that the wireless composite tester sends, loop device by the noise interferences simulator turns back to the wireless composite tester to restituted signal, the wireless composite tester tests out the reception frame error rate of mobile phone, and the portable terminal that is in the talking state carried out various testing performance indexes, the quality authentication test control device reads test result in the wireless composite tester by GPIB control card and gpib bus;
(5) the wireless composite tester termination signaling that makes a call, finish and tested mobile terminal between the conversation connection status.
7. the multipath fading method of testing of portable terminal in the mobile communications network according to claim 6 is characterized in that described Frequency Band Selection has CDMA 800MHz Cellular and two tests of 1900MHz PCS frequency range.
8. the multipath fading method of testing of portable terminal in the mobile communications network according to claim 6 is characterized in that the step that comprises also in described the 4th step that the quality authentication test control device generates the result data of test plan database file and preserves.
9. the multipath fading method of testing of portable terminal in the mobile communications network according to claim 6, it is characterized in that portable terminal is after demodulating the radiofrequency signal that the wireless composite tester sends, loop device by the noise interferences simulator is got back to the wireless composite tester, the wireless composite tester tests out the reception frame error rate of mobile phone, and the mobile phone that is in the talking state carried out various testing performance indexes, the quality authentication test control device reads test result in the wireless composite tester by GPIB control card and gpib bus, compare with the index of setting, judge whether this performance meets testing standard, and the test result of every test is stored.
10. the multipath fading method of testing of portable terminal in the mobile communications network according to claim 6 is characterized in that between wireless composite tester and the portable terminal Traffic Channel number of base station power when setting up the conversation step of connecting needs the setting wireless comprehensive tester to work in the base station simulator mode and base station simulator.
11. the multipath fading method of testing of portable terminal in the mobile communications network according to claim 6 is characterized in that also comprising channel switch test project, channel switch test project has following steps:
The wireless composite tester sends a switch indicating information, orders portable terminal to be measured to carry out direct-cut operation;
After portable terminal to be measured receives switch indicating information, switch at the interchannel of different frequency;
The quality authentication test control device is measured the time that portable terminal is finished direct-cut operation, and detects whether closed transmitter when portable terminal switches between different frequencies.
12. the multipath fading method of testing of portable terminal in the mobile communications network according to claim 11, described portable terminal direct-cut operation is a feature with the interim interruption of Traffic Channel, this switching is the switching between the different base station, the switching under switching under the different assigned frequencies or the different frame skew.
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| CN112243288B (en) * | 2019-07-16 | 2023-12-26 | 北京小米移动软件有限公司 | Power adjustment method and device, electronic equipment and readable storage medium |
| CN113825158A (en) * | 2021-08-31 | 2021-12-21 | 国网江苏省电力有限公司泰州供电分公司 | Power grid wireless communication debugging system |
| CN114268982B (en) * | 2021-11-30 | 2023-06-27 | 重庆长安汽车股份有限公司 | Vehicle-mounted mobile communication terminal test system |
| CN114614926B (en) * | 2022-03-10 | 2024-01-30 | 中国电子科技集团公司第五十四研究所 | Simulation test method and device of communication system and electronic equipment |
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| CN1518262A (en) * | 2003-01-21 | 2004-08-04 | ���µ�����ҵ��ʽ���� | Test device, mobile terminal device and test method |
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