CN102324987A - TIS (Total Isotropic Sensitivity) testing method for GSM (Global System for Mobile Communication) mobile terminal - Google Patents
TIS (Total Isotropic Sensitivity) testing method for GSM (Global System for Mobile Communication) mobile terminal Download PDFInfo
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- CN102324987A CN102324987A CN201110189515A CN201110189515A CN102324987A CN 102324987 A CN102324987 A CN 102324987A CN 201110189515 A CN201110189515 A CN 201110189515A CN 201110189515 A CN201110189515 A CN 201110189515A CN 102324987 A CN102324987 A CN 102324987A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/0082—Monitoring; Testing using service channels; using auxiliary channels
- H04B17/0087—Monitoring; Testing using service channels; using auxiliary channels using auxiliary channels or channel simulators
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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Abstract
The invention discloses a TIS (Total Isotropic Sensitivity) testing method for a GSM (Global System for Mobile Communication) mobile terminal. The method comprises the following steps of: directly connecting the GSM mobile terminal with a base station emulator by using a radio frequency cable to perform conduction testing; determining a power value Rx Level actually received by a baseband chip of the GSM mobile terminal in the case of conduction testing when the GSM mobile terminal reaches an error code standard; and quickly positioning sensitivity of any position under radiation by using the Rx Level value, so that the sensitivity search time at each angle in the TIS test can be improved to improve the overall measurement speed of the TIS. The method of quickly positioning the sensitivity of any position under radiation by using the power Rx Level value received by the baseband chip of the mobile terminal corresponding to the sensitivity at any position in a mobile terminal radiation mode is adopted, so that the sensitivity search time at any angle in the TIS test can be improved to improve the overall measurement speed of the TIS.
Description
Technical field
The present invention relates to the mobile communication technology field, in particular a kind of TIS method of testing of GSM mobile termination.
Background technology
As everyone knows, (Over The Air: the test of carrying out through air transmitted) the test macro investment is huge, and method of testing is complicated for present GSM mobile termination OTA.Total radiant power) and Total Isotropic Sensitivity (TIS: total omnidirectional sensitivity) OTA test (test of carrying out through air transmitted) comprises two kinds of main test indexs: Total Radiated Power (TRP:.Wherein TIS test holding time is the longest, and once comprehensively single channel TIS test needs about 1 hour testing time.The gross investment of the millions of RMB of OTA test macro relatively, the testing time meaning is big more, and the cost that is spent is just big more.Simultaneously, because huge cost, test accredited laboratory or research and development institution can not build a lot of OTA laboratories.Therefore the OTA darkroom must be a kind of scarce resource.Also can cause waiting in line of other projects to be measured if take the OTA laboratory for a long time, and then cause the time cost of research and development to increase.
Therefore, prior art awaits to improve and development.
Summary of the invention
The technical problem that the present invention will solve is, to the above-mentioned defective of prior art, a kind of TIS method of testing of GSM mobile termination is provided, and can shorten the testing time of TIS greatly, has improved the testing efficiency of TIS.
The technical scheme that technical solution problem of the present invention is adopted is following:
A kind of TIS method of testing of GSM mobile termination wherein, comprises step:
At first use the radio frequency cable directly to be connected GSM mobile termination and base station emulator and carry out conduction test; Confirm the performance number Rx Level that GSM mobile termination baseband chip actual reception arrived when GSM mobile termination reached error rate standard under the conduction test, and be
GSM mobile termination baseband chip actual reception power under this conduction test; Said method is further comprising the steps of:
Step1: the GSM mobile termination start is placed into the turntable fixed position of OTA test macro, and is connected to base station emulator;
The Theta axle of Step2:OTA test macro control turntable and Phi through-drive are to first precalculated position;
Step3:OTA test macro control darkroom dual-mode antenna turns to horizontal level;
Step4:OTA test macro control base station emulator is to initial power
;
Step5: the error rate of measure GSM portable terminal; And test is at this moment when the base station emulator power output is made as initial power
; The Rx Level value of the received power of GSM mobile termination baseband chip is made as
.
Step6: when the GSM mobile termination error rate does not exceed standard, OTA test macro control base station emulator reduces transmitting power and does
= 
-(
-
)
Wherein,
representes the power that next step base station emulator should be provided with;
initial power when testing for base station emulator; When
expression base station emulator power output is made as initial value, the received power of GSM mobile termination baseband chip;
is illustrated in the conduction test, baseband chip actual reception power when GSM mobile termination reaches sensitivity;
Step7: the GSM mobile termination error rate of measuring this moment;
Step8: when the GSM mobile termination error rate of judging this moment does not exceed standard, then the base station emulator transmitting power is reduced by a predetermined value, the GSM mobile termination error rate when this moment exceeds standard, and then the base station emulator transmitting power is increased by this predetermined value, again test; Write down the base station emulator transmitting power of this moment, be the sensitivity
of this position
Step9:OTA test macro control darkroom dual-mode antenna turns to the upright position, repeats step4-8
Step10: test macro control turntable Theta and Phi through-drive are to second precalculated position, and repetition Step3-9;
Step11: test macro control turntable Theta axle is every at a distance from 30
0, the Phi axle is every at a distance from 30
0Test once, after turntable Theta and all angle measurements of Phi axle finish, according to formula:
The sensitivity
of all positions of weighting statistics, thus final TIS obtained;
Wherein
;
is respectively the angle of above-mentioned Theta and Phi axle; EIS is the performance number after sensitivity
compensates this angle darkroom receiving antenna gain, and unit is watt; N and M are respectively the numbers of test points of Theta and Phi axle,
be respectively the sensitivity that the darkroom reception antenna rotates the horizontal and vertical position test.
The TIS method of testing of said GSM mobile termination, wherein, the said GSM mobile termination error rate did not exceed standard less than 2.4% o'clock.
The TIS method of testing of said GSM mobile termination, wherein, the predetermined value among the said step Step8 is 0.5dB.
The TIS method of testing of said GSM mobile termination, wherein, the Theta axle in said first precalculated position and second precalculated position is separated by 30
0, the Phi axle is separated by 30
0
The TIS method of testing of said GSM mobile termination, wherein, the number of test points of setting Theta and Phi axle all is 12 points.
A kind of TIS method of testing of GSM mobile termination wherein, comprises step:
Sp1: the GSM mobile termination start is placed into the turntable fixed position of OTA test macro, and is connected to base station emulator;
The Theta axle of Sp2:OTA test macro control turntable and Phi through-drive are to first precalculated position;
Sp3:OTA test macro control darkroom dual-mode antenna turns to horizontal level;
Sp4:OTA test macro control base station emulator is to initial power
;
Sp5: the error rate of measure GSM portable terminal;
Sp5-1: when the GSM mobile termination error rate does not exceed standard, OTA test macro control base station emulator reduces a predetermined value transmitting power;
Sp5-2: the GSM mobile termination error rate of measuring this moment;
Sp5-3:, repeat Sp5-2 and Sp5-3 and exceed standard until the error rate when the GSM mobile termination error rate BER does not exceed standard; And write down the base station emulator transmitting power when just having exceeded standard, be the sensitivity
of this position; And the baseband chip of mobile terminal that obtains this moment receives performance number Rx Level and is
;
Sp5-4:OTA test macro control darkroom dual-mode antenna turns to the upright position, measures the sensitivity
of obtaining portable terminal this moment; And the test obtain this moment the GSM mobile termination baseband chip receive performance number Rx Level; When if the base station emulator power output is made as initial value, record that the GSM mobile termination baseband chip receives power is
;
Sp5-5: when GSM mobile termination sensitivity does not exceed standard; OTA test macro control base station emulator reduces transmitting power, and transmitting power is set to:
=
-(
-
);
Wherein,
representes the power that next step base station emulator should be provided with;
initial power when testing for base station emulator; When
expression base station emulator power output is made as initial value, the received power of GSM mobile termination baseband chip;
is illustrated in the conduction test, baseband chip actual reception power when GSM mobile termination reaches sensitivity;
Sp5-6: measure the portable terminal error rate;
Sp5-7: when the error rate does not exceed standard, reduce a predetermined value base station power so,, increase by a predetermined value base station power so, again test if exceed standard; And write down the base station emulator transmitting power when just having exceeded standard, be the sensitivity
of this position;
Sp5-8:OTA test macro control darkroom dual-mode antenna turns to horizontal level;
Sp5-9:OTA test macro control base station emulator is to initial power
;
Sp5-10: the error rate of measure GSM portable terminal; And test this moment when the base station emulator power output is made as initial value, the received power Rx Level value that the GSM mobile termination baseband chip records; And establish the base station emulator power output when being made as initial value, record that the GSM mobile termination baseband chip receives power is
;
Sp6: when the GSM mobile termination error rate does not exceed standard, OTA test macro control base station emulator reduces transmitting power and does
= 
-(
-
);
Wherein,
representes the power that next step base station emulator should be provided with;
initial power when testing for base station emulator; When
expression base station emulator power output is made as initial value, the received power of GSM mobile termination baseband chip;
is illustrated in the conduction test, baseband chip actual reception power when GSM mobile termination reaches sensitivity;
Sp7: the measure GSM portable terminal error rate;
Step8: when the GSM mobile termination error rate of judging this moment does not exceed standard, then the base station emulator transmitting power is reduced by a predetermined value, the GSM mobile termination error rate when this moment exceeds standard, and then the base station emulator transmitting power is increased by this predetermined value, again test; Write down the base station emulator transmitting power of this moment, be the sensitivity
of this position;
Sp9:OTA test macro control darkroom dual-mode antenna turns to the upright position, repeats sp4-8;
Sp10: test macro control turntable Theta and Phi through-drive are to second precalculated position, and repetition Sp3-9.
Step11: test macro control turntable Theta axle is every at a distance from 30
0, the Phi axle is every at a distance from 30
0Test once, after turntable Theta and all angle measurements of Phi axle finish, according to formula:
The sensitivity
of all positions of weighting statistics, thus final TIS obtained;
Wherein
;
is respectively the angle of above-mentioned Theta and Phi axle; EIS is the performance number after sensitivity
compensates this angle darkroom receiving antenna gain, and unit is watt; N and M are respectively the numbers of test points of Theta and Phi axle,
be respectively the sensitivity that the darkroom reception antenna rotates the horizontal and vertical position test.
The TIS method of testing of said GSM mobile termination, wherein, the said GSM mobile termination error rate did not exceed standard less than 2.4% o'clock, and the GSM mobile termination error rate exceeded standard more than or equal to 2.4% o'clock.
The TIS method of testing of said GSM mobile termination, wherein, the predetermined value among the said step Sp8 is 0.5dB.
The TIS method of testing of said GSM mobile termination, wherein, the Theta axle in said first precalculated position and second precalculated position is separated by 30
0, the Phi axle is separated by 30
0
The TIS method of testing of said GSM mobile termination, wherein, the number of test points of setting Theta and Phi axle all is 12 points.
The TIS method of testing of a kind of GSM mobile termination provided by the present invention; Owing to use the sensitivity of method that sensitivity (Sensitivity) corresponding mobile terminal baseband chip received power Rx Level value is come any position under the location radiation fast under the GSM mobile termination conduction; Can improve the sensitivity search time of each angle in the TIS test, thereby improve the whole measuring speed of TIS.
And use mobile terminal radiating pattern some sensitivity (Sensitivity) the corresponding mobile terminal baseband chip received power Rx Level value sensitivity of method of coming to locate fast any position under the radiation down arbitrarily; It can improve the sensitivity search time of each angle in the TIS test, thereby improves the whole measuring speed of TIS.
Description of drawings
Fig. 1 is the OTA darkroom structural representation of the embodiment of the invention.
Embodiment
The TIS method of testing of a kind of GSM mobile termination provided by the present invention, clearer, clear and definite for making the object of the invention, technical scheme and advantage, below develop simultaneously embodiment to further explain of the present invention with reference to accompanying drawing.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
As shown in Figure 1, be that (Over The Air: the test of carrying out through air transmitted) darkroom 100 structural representations, GSM mobile termination (equipment under test) 200 is positioned on the turntable 110 a kind of typical OTA.This turntable 110 has two rotating shafts, is named as Theta axle (θ axle) and Phi axle (φ axle) respectively.OTA darkroom 100 dual-mode antennas 120 can have both direction level and vertical direction.
Typical TIS (whole radiation sphere mobile phone receiving sensitivity index) testing procedure is following:
200 starts of S1:GSM portable terminal are connected to base station emulator.And be placed into turntable 110 fixed positions.
S2: the Theta of test macro control turntable 110 and Phi through-drive are to a certain position.
S3: test macro control darkroom dual-mode antenna 120 turns to horizontal level.
S4: test macro control base station emulator is to initial power
.This initial power
refers to the initial value of the search of sensitivity each time; Each mobile phone is changed to new position; Base station emulator always begins since a higher transmitting power of ratio; Reduction power gradually instructs the error rate to exceed standard.
S5: the error rate of measure GSM portable terminal 120 (BER).
S6: if the GSM mobile termination error rate does not exceed standard (GSM standard is defined as BER and does not promptly exceed standard less than 2.4%), test macro control base station emulator reduces transmitting power.
S7: the sensitivity of measure GSM portable terminal 200;
S8:, repeat S6 and S7 and exceed standard until the error rate if sensitivity does not exceed standard.Write down the base station emulator transmitting power of this moment, be the sensitivity
of this position.Because there are two rotating shaft positions at terminal to be measured, reception antenna has horizontal and vertical position.Represent the sensitivity under the different positions so need three subscripts (θ, φ, ANT).
S9: test macro control darkroom dual-mode antenna turns to the upright position, repeats S4-8
S10: test macro control turntable Theta and Phi through-drive are to another position, and repetition S3-9.
S11: after turntable Theta and all angle measurements of Phi axle finish, according to all sensitivity
of formula weighting statistics thus obtain final TIS.
In the TIS test of standard, Theta axle (θ axle) is every at a distance from 30
0, Phi axle (φ axle) is every at a distance from 30
0Test once.The TIS computing formula is following:
Wherein
,
is the angle of above-mentioned Theta and Phi axle; EIS is the performance number after sensitivity
compensates this angle darkroom receiving antenna gain, and unit is watt (Watt); N and M are respectively the numbers of test points of Theta and Phi axle; Standard Theta is 12 points; Phi is 12 points,
be respectively the sensitivity that the darkroom reception antenna rotates the horizontal and vertical position test.Wherein Theta is because symmetric relation only needs test one half data.Therefore total number of test points is the 6*12*2=144 point.
Because the duration that S5 needs is fixed, the number of times that S5 is repeated is many more, and total testing time will be long more.And in the original algorithm; In order to obtain each sensitivity
; The sensitivity
that need repeatedly repeat S5. and each angle differs big more with base station emulator to initial power; Number of repetition will be many more; Total testing time will be long more, and the testing efficiency of GSM mobile termination TIS just can't improve.
In order to overcome above-mentioned defective; The embodiment of the invention has proposed a kind of TIS method of testing of new GSM mobile termination, and each sensitivity
need only repeat 2-3 S5 and can obtain.Concrete implementation method is following:
At first, before test, carry out conduction test earlier, confirm Rx Level (power that the GSM mobile termination baseband chip actual reception arrives) value when GSM mobile termination reaches error rate standard under the conduction.The GSM mobile termination that so-called conduction test refers to uses the radio frequency cable directly to be connected the test of carrying out with base station emulator.In the GSM terminal, conducted susceptibility refers to BER (error rate) when surpassing 2.4%, the transmitting power of base station emulator.And Rx Level refers to the terminal baseband chip that GSM mobile termination reports to base station emulator and records the power that actual reception arrives.
Generally speaking, the sensitivity at existing GSM terminal-108dBm ~-110dBm between, Rx Lvel is also in this scope.For convenience; Hypothesis has its sensitivity of GSM mobile termination and Rx Level (GSM mobile termination actual reception to power) all to be-109dBm in the embodiment of the invention; Be set in the conduction test; The Rx Level that reports when GSM mobile termination reaches sensitivity, the power that the GSM mobile termination actual reception arrives is
.
The TIS method of testing of the new GSM mobile termination that the present invention proposes is following:
The Step1:GSM mobile terminal-opening is connected to the base station emulator of OTA test macro, and is placed into the fixed position on the turntable.
The Theta axle (θ axle) and the Phi axle (φ axle) of Step2:OTA test macro control turntable 110 are transferred to first precalculated position.
Step3:OTA test macro control darkroom dual-mode antenna 120 turns to horizontal level.
Step4:OTA test macro control base station emulator is to initial power
(initial: initial).This initial power
refers to the initial value of the search of sensitivity each time; Each mobile phone is changed to new position; Base station emulator always begins since a higher transmitting power of ratio; Reduction power gradually instructs the error rate to exceed standard.
Step5: the error rate BER of measure GSM portable terminal.Simultaneously, test this moment when the base station emulator power output is made as initial value, the received power Rx Level value that the GSM mobile termination baseband chip records.Because be in radiation mode this moment, Rx Level generally is not equal to the power of base station emulator.When supposing that the base station emulator power output is made as initial value, record that the GSM mobile termination baseband chip receives power is
.Wherein, said radiation mode is that relative conduction test is sayed, at this moment GSM mobile termination is not connected through the radio frequency line cable with base station emulator, but directly wireless connections.
Step6: if the GSM mobile termination error rate BER does not exceed standard; OTA test macro control base station emulator reduces transmitting power, and test macro will be provided with transmitting power and be this moment:
=
-(
-
).Wherein,
representes the power that next step base station emulator should be provided with.
initial initial power when testing for base station emulator; When
expression base station emulator power output is made as initial value, the power that the GSM mobile termination baseband chip receives;
is illustrated in the conduction test, the power that the GSM mobile termination actual reception when GSM mobile termination reaches sensitivity arrives.
Step7: measure GSM portable terminal error rate BER, this moment, error rate BER should be able to be very near 2.4%.
Step8: if error rate BER does not exceed standard, reduce a predetermined value such as 0.5dB base station emulator transmitting power so,, increase this predetermined value such as 0.5dB base station power so, again test if exceed standard.Write down the base station emulator transmitting power of this moment, be the sensitivity
of this position.
Wherein, the said GSM mobile termination error rate did not exceed standard less than 2.4% o'clock, and the GSM mobile termination error rate exceeded standard more than or equal to 2.4% o'clock
Step9: test macro control darkroom dual-mode antenna turns to the upright position, repeats step4-8.
Step10: test macro control turntable Theta and Phi through-drive are to second precalculated position, and repetition Step3-9.
Step11: after turntable Theta and all angle measurements of Phi axle finish; According to the sensitivity
of all positions of formula weighting statistics, thereby obtain final TIS.
Wherein, Theta axle (θ axle) is every at a distance from 30
0, Phi axle (φ axle) is every at a distance from 30
0Test once.The TIS computing formula is following:
Wherein
,
is the angle of above-mentioned Theta and Phi axle; EIS is the performance number after sensitivity
compensates this angle darkroom receiving antenna gain, and unit is watt (Watt); N and M are respectively the numbers of test points of Theta and Phi axle; Standard Theta is 12 points; Phi is 12 points,
be respectively the sensitivity that the darkroom reception antenna rotates the horizontal and vertical position test.Wherein Theta is because symmetric relation only needs test one half data.Therefore total number of test points is the 6*12*2=144 point.
Therefore; In the method for the embodiment of the invention; The acquisition time of the sensitivity of each position
at most only needs repetition step 5 three times: test once under initial power; Power
in that next step base station emulator is provided with is tested once down, near
, searches for once to get final product.Therefore can shorten the acquisition time of each
, and then reduce total testing time of TIS.Use the sensitivity of method that sensitivity (Sensitivity) corresponding mobile terminal baseband chip received power Rx Level value is come any position under the location radiation fast under the GSM mobile termination conduction; Can improve the sensitivity search time of each angle in the TIS test, thereby improve the whole measuring speed of TIS.
The sensitivity of the GSM mobile termination of conduction mode and GSM mobile termination baseband chip actual reception power Rx Level are inconvenient to test under the situation about certainly, having.In this case, also can adopt the TIS method of testing test of the GSM mobile termination of another embodiment of the present invention, comprise the steps:
The Sp1:GSM mobile terminal-opening is connected to the base station emulator of OTA test macro, and is placed into the fixed position on the turntable.
The Theta axle (θ axle) and the Phi axle (φ axle) of Sp2:OTA test macro control turntable 110 are transferred to first precalculated position.
Sp3:OTA test macro control darkroom dual-mode antenna 120 turns to horizontal level.
Sp4:OTA test macro control base station emulator is to initial power
(initial: initial).This initial power
refers to the initial value of the search of sensitivity each time; Each mobile phone is changed to new position; Base station emulator always begins since a higher transmitting power of ratio; Reduction power gradually instructs the error rate to exceed standard.
Sp5: the error rate BER of measure GSM portable terminal.
Sp5-1: if the portable terminal error rate does not exceed standard (GSM standard is defined as BER and does not promptly exceed standard less than 2.4%), test macro control base station emulator reduces a predetermined value such as 0.5dB transmitting power.
Sp5-2: measure the portable terminal error rate BER.
Sp5-3:, repeat Sp5-2 and Sp5-3 and exceed standard until the error rate if the GSM mobile termination error rate BER does not exceed standard (GSM standard is defined as BER and does not promptly exceed standard less than 2.4%).When just exceeding standard; Write down the base station emulator transmitting power of this moment, be the sensitivity
of this position.The baseband chip of mobile terminal that also will obtain simultaneously this moment receives performance number Rx Level and is
.
Sp5-4:OTA test macro control darkroom dual-mode antenna turns to the upright position, measures the sensitivity
of portable terminal this moment.Simultaneously, test GSM mobile termination baseband chip at this moment receives performance number Rx Level.Because be in radiation mode this moment, Rx Level generally is not equal to the power of base station emulator.When hypothesis base station emulator power output is made as initial value in the present embodiment, record that the GSM mobile termination baseband chip receives power is
.
Sp5-5: if portable terminal sensitivity does not exceed standard (GSM standard is defined as BER and does not promptly exceed standard less than 2.4%), test macro control base station emulator reduces transmitting power.At this point the test system will be set transmit power:
=
- (
-
).Wherein,
representes the power that next step base station emulator should be provided with;
initial power when testing for base station emulator; When
expression base station emulator power output is made as initial value, the received power of GSM mobile termination baseband chip;
is illustrated in the conduction test, baseband chip actual reception power when GSM mobile termination reaches sensitivity.
Sp5-6: measure the portable terminal error rate BER, BER should be able to be very near 2.4% (GSM standard be defined as BER and promptly exceed standard less than 2.4%) this moment.
Sp5-7: if the error rate does not exceed standard, reduce a predetermined value such as 0.5dB base station power so,, increase a predetermined value such as 0.5dB base station power so, again test if exceed standard.Write down the base station emulator transmitting power of this moment, be the sensitivity
of this position;
Sp5-8:OTA test macro control darkroom dual-mode antenna turns to horizontal level.
Sp5-9:OTA test macro control base station emulator is to initial power
.This initial power
refers to the initial value of the search of sensitivity each time; Each mobile phone is changed to new position; Base station emulator always begins since a higher transmitting power of ratio; Reduction power gradually instructs the error rate to exceed standard.
Sp5-10: the error rate BER of measure GSM portable terminal.Simultaneously, test this moment when the base station emulator power output is made as initial value, the received power Rx Level value that the GSM mobile termination baseband chip records.Because be in radiation mode this moment, Rx Level generally is not equal to the power of base station emulator.When supposing that the base station emulator power output is made as initial value, record that the GSM mobile termination baseband chip receives power is
.Wherein, said radiation mode is that relative conduction test is sayed, at this moment GSM mobile termination is not connected through the radio frequency line cable with base station emulator, but directly wireless connections.
Sp6: if the GSM mobile termination error rate BER does not exceed standard; OTA test macro control base station emulator reduces transmitting power, and test macro will be provided with transmitting power and be this moment:
=
-(
-
).Wherein,
representes the power that next step base station emulator should be provided with.
initial initial power when testing for base station emulator; When
expression base station emulator power output is made as initial value, the power that the GSM mobile termination baseband chip receives;
is illustrated in the conduction test, the power that the GSM mobile termination actual reception when GSM mobile termination reaches sensitivity arrives.
Sp7: measure GSM portable terminal error rate BER, this moment, error rate BER should be able to be very near 2.4%.
Sp8: if error rate BER does not exceed standard (GSM standard is defined as BER and does not promptly exceed standard less than 2.4%), reduce a predetermined value such as 0.5dB base station emulator transmitting power so,, increase this predetermined value such as 0.5dB base station power so, again test if exceed standard.Write down the base station emulator transmitting power of this moment, be the sensitivity
of this position.
Sp9: test macro control darkroom dual-mode antenna turns to the upright position, repeats sp4-8;
Sp10: test macro control turntable Theta and Phi through-drive are to second precalculated position, and repetition Sp3-9.
Step11: test macro control turntable Theta axle is every at a distance from 30
0, the Phi axle is every at a distance from 30
0Test once, after turntable Theta and all angle measurements of Phi axle finish, according to formula:
The sensitivity
of all positions of weighting statistics, thus final TIS obtained;
Wherein
;
is respectively the angle of above-mentioned Theta and Phi axle; EIS is the performance number after sensitivity
compensates this angle darkroom receiving antenna gain, and unit is watt; N and M are respectively the numbers of test points of Theta and Phi axle,
be respectively the sensitivity that the darkroom reception antenna rotates the horizontal and vertical position test.
Second kind of embodiment of the present invention uses arbitrarily some sensitivity (Sensitivity) the corresponding mobile terminal baseband chip received power Rx Level value sensitivity of method of coming to locate fast any position under the radiation down of mobile terminal radiating pattern; Omitted initial testing conducted susceptibility and GSM mobile termination baseband chip actual reception power Rx level, but the Measuring Time of first point can be longer.But only be always to test 1/144 of quantity, therefore the overall testing time still can be saved a lot, and it can improve the sensitivity search time of each angle in the TIS test, thereby improves the whole measuring speed of TIS.
In sum; The TIS method of testing of the GSM mobile termination of the embodiment of the invention; Owing to use the sensitivity of method that sensitivity (Sensitivity) corresponding mobile terminal baseband chip received power Rx Level value is come any position under the location radiation fast under the GSM mobile termination conduction; Can improve the sensitivity search time of each angle in the TIS test, thereby improve the whole measuring speed of TIS.
And use mobile terminal radiating pattern some sensitivity (Sensitivity) the corresponding mobile terminal baseband chip received power Rx Level value sensitivity of method of coming to locate fast any position under the radiation down arbitrarily; It can improve the sensitivity search time of each angle in the TIS test, thereby improves the whole measuring speed of TIS.
Should be understood that application of the present invention is not limited to above-mentioned giving an example, concerning those of ordinary skills, can improve or conversion that all these improvement and conversion all should belong to the protection range of accompanying claims of the present invention according to above-mentioned explanation.
Claims (10)
1. the TIS method of testing of a GSM mobile termination is characterized in that, comprises step:
At first use the radio frequency cable directly to be connected GSM mobile termination and base station emulator and carry out conduction test; Confirm the performance number Rx Level that GSM mobile termination baseband chip actual reception arrived when GSM mobile termination reached error rate standard under the conduction test, and be
GSM mobile termination baseband chip actual reception power under this conduction test; Said method is further comprising the steps of:
Step1: the GSM mobile termination start is placed into the turntable fixed position of OTA test macro, and is connected to base station emulator;
The Theta axle of Step2:OTA test macro control turntable and Phi through-drive are to first precalculated position;
Step3:OTA test macro control darkroom dual-mode antenna turns to horizontal level;
Step4:OTA test macro control base station emulator is to initial power
;
Step5: the error rate of measure GSM portable terminal; And test is at this moment when the base station emulator power output is made as initial power
; The Rx Level value of the received power of GSM mobile termination baseband chip is made as
;
Step6: when the GSM mobile termination error rate does not exceed standard, OTA test macro control base station emulator reduces transmitting power and does
= 
-(
-
)
Wherein,
representes the power that next step base station emulator should be provided with;
initial power when testing for base station emulator; When
expression base station emulator power output is made as initial value, the received power of GSM mobile termination baseband chip;
is illustrated in the conduction test, baseband chip actual reception power when GSM mobile termination reaches sensitivity;
Step7: the GSM mobile termination error rate of measuring this moment;
Step8: when the GSM mobile termination error rate of judging this moment does not exceed standard, then the base station emulator transmitting power is reduced by a predetermined value, the GSM mobile termination error rate when this moment exceeds standard, and then the base station emulator transmitting power is increased by this predetermined value, again test; Write down the base station emulator transmitting power of this moment, be the sensitivity
of this position;
Step9:OTA test macro control darkroom dual-mode antenna turns to the upright position, repeats step4-8;
Step10: test macro control turntable Theta and Phi through-drive are to second precalculated position, and repetition Step3-9;
Step11: test macro control turntable Theta axle is every at a distance from 30
0, the Phi axle is every at a distance from 30
0Test once, after turntable Theta and all angle measurements of Phi axle finish, according to formula:
The sensitivity
of all positions of weighting statistics, thus final TIS obtained;
Wherein
;
is respectively the angle of above-mentioned Theta and Phi axle; EIS is the performance number after sensitivity
compensates this angle darkroom receiving antenna gain, and unit is watt; N and M are respectively the numbers of test points of Theta and Phi axle,
be respectively the sensitivity that the darkroom reception antenna rotates the horizontal and vertical position test.
2. according to the TIS method of testing of the said GSM mobile termination of claim 1, it is characterized in that the said GSM mobile termination error rate did not exceed standard less than 2.4% o'clock.
3. according to the TIS method of testing of the said GSM mobile termination of claim 1, it is characterized in that the predetermined value among the said step Step8 is 0.5dB.
4. according to the TIS method of testing of the said GSM mobile termination of claim 1, it is characterized in that the Theta axle in said first precalculated position and second precalculated position is separated by 30
0, the Phi axle is separated by 30
0
5. according to the TIS method of testing of the said GSM mobile termination of claim 1, it is characterized in that the number of test points of setting Theta and Phi axle all is 12 points.
6. the TIS method of testing of a GSM mobile termination is characterized in that, comprises step:
Sp1: the GSM mobile termination start is placed into the turntable fixed position of OTA test macro, and is connected to base station emulator;
The Theta axle of Sp2:OTA test macro control turntable and Phi through-drive are to first precalculated position;
Sp3:OTA test macro control darkroom dual-mode antenna turns to horizontal level;
Sp4:OTA test macro control base station emulator is to initial power
;
Sp5: the error rate of measure GSM portable terminal;
Sp5-1: when the GSM mobile termination error rate does not exceed standard, OTA test macro control base station emulator reduces a predetermined value transmitting power;
Sp5-2: the GSM mobile termination error rate of measuring this moment;
Sp5-3:, repeat Sp5-2 and Sp5-3 and exceed standard until the error rate when the GSM mobile termination error rate BER does not exceed standard; And write down the base station emulator transmitting power when just having exceeded standard, be the sensitivity
of this position; And the baseband chip of mobile terminal that obtains this moment receives performance number Rx Level and is
;
Sp5-4:OTA test macro control darkroom dual-mode antenna turns to the upright position, measures the sensitivity
of obtaining portable terminal this moment; And the test obtain this moment the GSM mobile termination baseband chip receive performance number Rx Level; When if the base station emulator power output is made as initial value, record that the GSM mobile termination baseband chip receives power is
;
Sp5-5: when GSM mobile termination sensitivity does not exceed standard; OTA test macro control base station emulator reduces transmitting power, and transmitting power is set to:
=
-(
-
);
Wherein,
representes the power that next step base station emulator should be provided with;
initial power when testing for base station emulator; When
expression base station emulator power output is made as initial value, the received power of GSM mobile termination baseband chip;
is illustrated in the conduction test, baseband chip actual reception power when GSM mobile termination reaches sensitivity;
Sp5-6: measure the portable terminal error rate;
Sp5-7: when the error rate does not exceed standard, reduce a predetermined value base station power so,, increase by a predetermined value base station power so, again test if exceed standard; And write down the base station emulator transmitting power when just having exceeded standard, be the sensitivity
of this position;
Sp5-8:OTA test macro control darkroom dual-mode antenna turns to horizontal level;
Sp5-9:OTA test macro control base station emulator is to initial power
;
Sp5-10: the error rate of measure GSM portable terminal; And test this moment when the base station emulator power output is made as initial value, the received power Rx Level value that the GSM mobile termination baseband chip records; And establish the base station emulator power output when being made as initial value, record that the GSM mobile termination baseband chip receives power is
;
Sp6: when the GSM mobile termination error rate does not exceed standard, OTA test macro control base station emulator reduces transmitting power and does
= 
-(
-
);
Wherein,
representes the power that next step base station emulator should be provided with;
initial power when testing for base station emulator; When
expression base station emulator power output is made as initial value, the received power of GSM mobile termination baseband chip;
is illustrated in the conduction test, baseband chip actual reception power when GSM mobile termination reaches sensitivity;
Sp7: the measure GSM portable terminal error rate;
Step8: when the GSM mobile termination error rate of judging this moment does not exceed standard, then the base station emulator transmitting power is reduced by a predetermined value, the GSM mobile termination error rate when this moment exceeds standard, and then the base station emulator transmitting power is increased by this predetermined value, again test; Write down the base station emulator transmitting power of this moment, be the sensitivity
of this position;
Sp9:OTA test macro control darkroom dual-mode antenna turns to the upright position, repeats sp4-8;
Sp10: test macro control turntable Theta and Phi through-drive are to second precalculated position, and repetition Sp3-9;
Step11: test macro control turntable Theta axle is every at a distance from 30
0, the Phi axle is every at a distance from 30
0Test once, after turntable Theta and all angle measurements of Phi axle finish, according to formula:
The sensitivity
of all positions of weighting statistics, thus final TIS obtained;
Wherein
;
is respectively the angle of above-mentioned Theta and Phi axle; EIS is the performance number after sensitivity
compensates this angle darkroom receiving antenna gain, and unit is watt; N and M are respectively the numbers of test points of Theta and Phi axle,
be respectively the sensitivity that the darkroom reception antenna rotates the horizontal and vertical position test.
7. according to the TIS method of testing of the said GSM mobile termination of claim 6, it is characterized in that the said GSM mobile termination error rate did not exceed standard less than 2.4% o'clock, the GSM mobile termination error rate exceeded standard more than or equal to 2.4% o'clock.
8. according to the TIS method of testing of the said GSM mobile termination of claim 6, it is characterized in that the predetermined value among the said step Sp8 is 0.5dB.
9. according to the TIS method of testing of the said GSM mobile termination of claim 6, it is characterized in that the Theta axle in said first precalculated position and second precalculated position is separated by 30
0, the Phi axle is separated by 30
0
10. according to the TIS method of testing of the said GSM mobile termination of claim 6, it is characterized in that the number of test points of setting Theta and Phi axle all is 12 points.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110189515A CN102324987A (en) | 2011-07-07 | 2011-07-07 | TIS (Total Isotropic Sensitivity) testing method for GSM (Global System for Mobile Communication) mobile terminal |
| PCT/CN2012/078102 WO2013004173A1 (en) | 2011-07-07 | 2012-07-03 | Tis test method for gsm mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110189515A CN102324987A (en) | 2011-07-07 | 2011-07-07 | TIS (Total Isotropic Sensitivity) testing method for GSM (Global System for Mobile Communication) mobile terminal |
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|---|---|
| CN102324987A true CN102324987A (en) | 2012-01-18 |
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|---|---|---|---|
| CN201110189515A Pending CN102324987A (en) | 2011-07-07 | 2011-07-07 | TIS (Total Isotropic Sensitivity) testing method for GSM (Global System for Mobile Communication) mobile terminal |
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| CN (1) | CN102324987A (en) |
| WO (1) | WO2013004173A1 (en) |
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| WO2013004173A1 (en) * | 2011-07-07 | 2013-01-10 | 惠州Tcl移动通信有限公司 | Tis test method for gsm mobile terminal |
| CN103336181A (en) * | 2013-05-28 | 2013-10-02 | 惠州Tcl移动通信有限公司 | GPS (global positioning system) OTA (on the air) test method and system |
| CN103906095A (en) * | 2012-12-25 | 2014-07-02 | 深圳市共进电子股份有限公司 | Wireless coverage performance test system and method |
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| CN107819529A (en) * | 2016-09-13 | 2018-03-20 | 深圳市新益技术有限公司 | A kind of method that TIS is quickly measured |
| CN108540342A (en) * | 2018-03-23 | 2018-09-14 | 上海鸿洛通信电子有限公司 | Test method, device and equipment |
| CN113422656A (en) * | 2021-05-28 | 2021-09-21 | 中国电力科学研究院有限公司 | Radio frequency technology-based wireless sensitivity testing method and device |
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| CN107819529A (en) * | 2016-09-13 | 2018-03-20 | 深圳市新益技术有限公司 | A kind of method that TIS is quickly measured |
| CN107819529B (en) * | 2016-09-13 | 2021-01-05 | 深圳市新益技术有限公司 | TIS rapid measurement method |
| CN108540342A (en) * | 2018-03-23 | 2018-09-14 | 上海鸿洛通信电子有限公司 | Test method, device and equipment |
| CN113422656A (en) * | 2021-05-28 | 2021-09-21 | 中国电力科学研究院有限公司 | Radio frequency technology-based wireless sensitivity testing method and device |
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Application publication date: 20120118 |