WO2013023546A1

WO2013023546A1 - Wcdma mobile terminal tis test method

Info

Publication number: WO2013023546A1
Application number: PCT/CN2012/079870
Authority: WO
Inventors: 白剑; 王柯
Original assignee: 惠州Tcl移动通信有限公司
Priority date: 2011-08-17
Filing date: 2012-08-09
Publication date: 2013-02-21
Also published as: CN102244549A; CN102244549B

Abstract

Disclosed is a WCDMA mobile terminal TIS test method. Since it uses the method of quickly locating the sensitivity of any location under radiation by a CPICH RSCP value corresponding to the sensitivity conducted by a WCDMA terminal, the WCDMA mobile terminal TIS test method provided in the present invention can improve the sensitivity search time of each angle of the WCDMA TIS test, thus improving the entire measurement speed of the WCDMA TIS. Furthermore, using the method of quickly locating the sensitivity of any location under radiation by a CPICH RSCP value corresponding to the sensitivity of any point in a WCDMA terminal radiation mode can improve the sensitivity search time of each angle of the TIS test, thus improving the TIS test efficiency of the WCDMA mobile terminal.

Description

A TIS test method for a WCDMA mobile terminal

The present invention relates to the field of mobile communication technologies, and in particular, to a TIS test method for a WCDMA mobile terminal.

Background technique

As we all know, the current WCDMA mobile terminal OTA (Over The Air: test by air conduction) test system investment is huge, the test method is complex. The OTA test (tested by air conduction) includes two main test indicators: Total Radiated Power (TRP: Total Radiated Power) and Total Isotropic Sensitivity (TIS: Total Omnidirectional Sensitivity). The TIS test takes the longest time, and a comprehensive single-channel TIS test takes about 1 hour of testing time. Compared to the total investment of several million RMB in the OTA test system, the greater the test time, the greater the cost. At the same time, due to the huge cost, it is impossible for test certification laboratories or R&D institutions to build many OTA laboratories. Therefore, the OTA darkroom is inevitably a scarce resource. If OTA Labs are occupied for a long time, it will also cause queues for other items to be tested, which will increase the time cost of R&D.

Therefore, the prior art has yet to be improved and developed.

Summary of the invention

The technical problem to be solved by the present invention is to provide a TIS test method for a WCDMA mobile terminal, which can greatly shorten the test time of the WCDMA mobile terminal TIS and improve the test efficiency of the TIS for the WCDMA mobile terminal.

Replacement page (Article 26) The technical solution adopted by the present invention to solve the technical problem is as follows: A TIS test method for a WCDMA mobile terminal, wherein the method includes the following steps: First, the WCDMA mobile terminal and the base station emulator are directly connected by using a radio frequency cable for conducting test, and determining the conduction test. When the WCDMA mobile terminal reaches the bit error rate standard, the WCDMA mobile terminal measures the chip power CPICH RSCP value of the navigation channel included in the base station transmission signal, and measures the code of the navigation channel included in the base station transmission signal by the WCDMA mobile terminal under the conduction test. The slice power is Pscns CMCH RSCP; the method further includes the following steps:

Stepl: Put the WCDMA mobile terminal into the fixed position of the turntable of the OTA test system and connect to the base station emulator;

Step 2: The OTA test system controls the Turntable's Theta and Phi axes to rotate to the first predetermined position;

Step3: The OTA test system controls the darkroom transceiver antenna to rotate to a horizontal position;

Step4: The OTA test system controls the base station emulator to the initial power P^ai;

Step 5: Measure the bit error rate of the WCDMA mobile terminal; and test that when the base station emulator output power is set to the initial power, the WCDMA mobile terminal measures the chip power CPICH RSCP value of the navigation channel included in the base station transmission signal, and sets ^p mi _{t CPIC} H _RSCP ; Step6: When the WCDMA mobile terminal error rate does not exceed the standard, the OTA test system controls the base station emulator to reduce the transmit power to: P . _Wer - -

(P. "it CPICH RSCp - Pse " S CPICH RSCP wherein, power represents power should be set next base station emulator, the sensitivity is defined as the estimated P ^ al is the initial base station simulator to test initial power; CPICH RSCP FIG. When the base station emulator output power is set to the initial power ^P «al

Replacement page (Article 26) Designate, WCDMA mobile terminal measured chip power of a pilot channel of the base station transmission signal included; P _Se _"s ™ indicates conduction test, WCDMA mobile terminal reaches channel when the sensitivity of a WCDMA mobile terminal measured by the base station transmits a signal in a navigation channel comprising Chip power

Step7: Measure the bit error rate of the WCDMA mobile terminal at this time;

Step 8: When it is determined that the error rate of the WCDMA mobile terminal at this time does not exceed the standard, the transmit power of the base station emulator is reduced by a predetermined value. When the error rate of the WCDMA mobile terminal exceeds the standard at this time, the transmit power of the base station emulator is increased by one. Predetermined value, retest; record the base station emulator transmit power at this time, that is, the sensitivity of the position ^SENS φ- ANT Step9: OTA test system controls the darkroom transceiver antenna to rotate to the vertical position, repeat

Step4-8

SteplO: test system control turntable Theta and Phi axis rotate to the second predetermined position, and repeat Step3-9;

Stepll: The test system controls the turntable Theta axis every 30 ^G , and the Phi axis tests every 30 ^Q. When all the angles of the turntable Theta and Phi axes are tested, according to the formula:

Weighting the sensitivity of all locations ^^, to obtain the final TIS; where ^ is the angle of the above Theta and Phi axes, EIS is the sensitivity

^SENS ^' compensates the power value of the angle chamber receiving antenna gain in watts; N and M are the test points of Theta and Phi axes respectively, and ^EISfl and ^EIS are the sensitivity of the darkroom receiving antenna rotation level and vertical position test respectively.

Replacement page (Article 26) The TIS test method of the WCDMA mobile terminal, where the WCDMA mobile terminal does not exceed the standard when the bit error rate is less than 0.1%.

The TIS test method of the WCDMA mobile terminal, wherein the predetermined value in the step 8 is 0.5 dB.

The TIS test method of the WCDMA mobile terminal, wherein the first predetermined position is separated from the Theta axis of the second predetermined position by 30°, and the Phi axis is separated by 30 ^G.

The TIS test method of the WCDMA mobile terminal, wherein the number of test points for setting the Theta and Phi axes is 12 points.

A TIS test method for a WCDMA mobile terminal, comprising: steps:

Spl: Put the WCDMA mobile terminal into the fixed position of the turntable of the OTA test system and connect to the base station emulator;

Sp2: The OTA test system controls the Turntable's Theta and Phi axes to rotate to the first predetermined position;

Sp3: The OTA test system controls the darkroom transceiver antenna to rotate to a horizontal position;

Sp4: OTA test system controls base station emulator to initial power

;

Sp5: measuring the bit error rate of the WCDMA mobile terminal;

Sp5-1: When the bit error rate of the WCDMA mobile terminal is not exceeded, the OTA test system controls the base station emulator to reduce a predetermined value of transmit power;

Sp5-2: measuring the bit error rate of the WCDMA mobile terminal at this time;

Sp5-3: When the BER of the WCDMA mobile terminal does not exceed the standard, repeat Sp5-1 and Sp5-2 until the bit error rate exceeds the standard; and record the transmit power of the base station emulator when the standard is exceeded, that is, the sensitivity of the position SENS, And get the WCDMA shift at this time

Replacement page (Article 26) The mobile terminal measures the chip power CPICH of the navigation channel included in the signal transmitted by the base station

^ ^ Sens CPICH RSCP

Sp5-4: The OTA test system controls the darkroom transceiver antenna to rotate to the vertical position, and measures the sensitivity of the mobile terminal SENS _fl , _φ , _Am ; and obtains the base station emulator output power at this time as the initial power, WCDMA mobile The terminal measures the chip power of the navigation channel included in the signal transmitted by the base station as a Plnif CP;

Sp5-5: When the sensitivity of the WCDMA mobile terminal is not exceeded, the OTA test system controls the base station emulator to reduce the transmit power and sets the transmit power to:

Pcell power = Pinitial ( ^lnit CPICH RSCP _ 3⁄4ens CPICH RSCP ) + J where _? ^ceU power shows the power that the base station emulator should set next, which is defined as the expected sensitivity; ^ the initial initial power when testing the base station emulator; ^P Ini _{t CPICH RSCP} indicates that when the base station emulator output power is set to the initial power P^ai, the WCDMA mobile terminal measures the chip power of the navigation channel included in the base station transmission signal; P _{Sens a} > _{1OT RSCT} indicates that in the conduction test When the WCDMA mobile terminal reaches the sensitivity, the WCDMA mobile terminal measures the chip power of the navigation channel included in the signal transmitted by the base station;

Sp5-6: measuring the bit error rate of the mobile terminal;

Sp5-7: When the bit error rate is not exceeded, the power of the base station is reduced by a predetermined value. If the value exceeds the standard, the power of the base station is increased by a predetermined value, and the power is re-tested; and the base station emulator transmit power just after the standard is recorded, that is, the position is Sensitivity SENS _ft dish;

Sp5-8: OTA test system controls the darkroom transceiver antenna to rotate to the horizontal position; Sp5-9: OTA test system controls the base station emulator to initial power P _initial ;

Sp5-10: measuring the bit error rate of the WCDMA mobile terminal; and testing the base station at this time

Replacement page (Article 26) When the emulator output power is set to the initial power ^p i-''ai, the WCDMA mobile terminal measures the chip power of the navigation channel included in the base station transmission signal as PwCH RSCP;

Sp6: When the WCDMA mobile terminal error rate does not exceed the standard, the OTA test system controls the base station emulator to reduce the transmit power to P _eeUpowCT = P _inMaI - ( P^ cP! CH RSCp - Psens CHCH RSCp )

+1;

Wherein, the power that should be set by the next base station emulator is defined as the expected sensitivity; ^tial is the initial initial power when the base station emulator is tested; ^P Init CPICH RSCP indicates that when the base station emulator output power is set to the initial power ^Ρω , The WCDMA mobile terminal measures the chip power of the navigation channel included in the signal transmitted by the base station; P s s _{s CTKHRSCT} indicates that the WCDMA mobile terminal detects the code of the navigation channel included in the signal transmitted by the base station when the WCDMA mobile terminal reaches the sensitivity in the conduction test. Chip power

Sp7: measuring the bit error rate of the WCDMA mobile terminal;

Step 8: When it is determined that the error rate of the WCDMA mobile terminal at this time does not exceed the standard, the transmit power of the base station emulator is reduced by a predetermined value. When the error rate of the WCDMA mobile terminal exceeds the standard at this time, the transmit power of the base station emulator is increased by one. Pre-determined value, re-test; record the base station emulator transmit power at this time, that is, the sensitivity of the position ^SEN ^ dish; Sp9: OTA test system controls the darkroom transceiver antenna to rotate to the vertical position, repeat Sp4-8;

SplO: test system control turntable Theta and Phi axes are rotated to the second predetermined position, and Sp3-9 is repeated;

Spll: Test system control turntable Theta axis is tested every 30° every 30°, and the Phi axis is tested every 30°. When all angles of the turntable Theta and Phi axes are tested, according to the formula:

6 Replacement page (Article 26)

Weighted statistics of the sensitivity of all locations, so as to obtain the final TIS; where ^ is the angle of the Theta and Phi axes above, EIS is the sensitivity SEKS ^. compensates the power of the angle darkroom receiving antenna gain, the unit is watt; N And M are the test points of the Theta and Phi axes, respectively, ^ΕΙ and ^ΕΙ , respectively, which are the sensitivity of the darkroom receiving antenna rotation level and vertical position test.

The TIS test method of the WCDMA mobile terminal, wherein the WCDMA mobile terminal does not exceed the standard when the bit error rate is less than 0.1%, and the WCDMA mobile terminal exceeds the standard when the bit error rate is greater than or equal to 0.1%.

The TIS test method of the WCDMA mobile terminal, wherein the predetermined value in the step Sp8 is 0.5 dB.

The TIS test method of the WCDMA mobile terminal, wherein the first predetermined position is separated from the Theta axis of the second predetermined position by 30 ^G , and the Phi axis is separated by 30 ^Q.

The TIS test method for a WCDMA mobile terminal provided by the present invention can improve the WCDMA TIS test by using the CPICH RSCP value corresponding to the Sensitivity of the WCDMA terminal to quickly locate the sensitivity (Sensitivity) at any position under the radiation. The sensitivity of each angle ( Sensitivity ) searches for time, thereby improving the overall measurement speed of the WCDMA TIS.

And using the WCDMA terminal radiation mode at any point of sensitivity (Sensitivity)

Replacement page (Article 26) The corresponding CPICH RSCP value to quickly locate the Sensitivity at any position under the radiation can improve the Sensitivity search time of each angle in the TIS test, thereby improving the TIS test efficiency of the WCDMA mobile terminal.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of an OTA dark room according to an embodiment of the present invention.

detailed description

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. FIG. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in Fig. 1, it is a typical OTA (Over The Air: test conducted by air conduction). The structure of the darkroom 100 is shown. The WCDMA mobile terminal (device under test) 200 is placed on a turntable 110. This turntable 110 has two rotating shafts, which are named Theta axis (Θ axis) and Phi axis (φ axis). The darkroom 100 transceiver antenna 120 can have both horizontal and vertical directions.

The typical TIS (Enhanced Radial Spherical Cell Phone Receive Sensitivity Indicator) test procedure is as follows: SI: The WCDMA mobile terminal 200 is powered on and connected to the base station emulator. And placed to the fixed position of the turntable 110.

S2: The Theta and Phi axes of the test system control turntable 110 are rotated to a certain position. S3: The test system controls the darkroom transceiver antenna 120 to rotate to a horizontal position.

S4: The test system controls the base station emulator to the initial power ^PinM . Initial power

Replacement page (Article 26) Refers to the starting value of each sensitivity search. Each time the phone is switched to a new location, the base station emulator always starts with a relatively high transmit power from the beginning, gradually reducing the power until the bit error rate exceeds the standard.

S5: Measure the bit error rate (BER) of the WCDMA mobile terminal 120.

S6: If the WCDMA mobile terminal has a bit error rate that is not exceeded (the WCDMA standard defines that the bit error rate BER is less than 0.1%, that is, does not exceed the standard), the test system controls the base station emulator to reduce the transmit power.

S7: measuring the sensitivity of the WCDMA mobile terminal 200;

S8: If the sensitivity is not exceeded, repeat S6 and S7 until the bit error rate exceeds the standard. The base station emulator transmit power at this time is recorded, which is the sensitivity ^SENS AMT of the position. Since the terminal to be tested has two shaft positions, the receiving antenna has horizontal and vertical positions. So three subscripts (θ, φ, ANT ) are needed to indicate sensitivity at different locations.

S9: The test system controls the darkroom transceiver antenna to rotate to the vertical position, repeating S4-8; S10: Test system control turntable Theta and Phi axes are rotated to another position, and S3-9 is repeated.

S11: After all angles of the turntable Theta and Phi axes are tested, all the sensitivity ^{SEN's are} weighted according to the formula to obtain the final TIS.

In the standard TIS test, the Theta axis (Θ axis) is tested every 30 ^G and the Phi axis (φ axis) is tested every 30 ^Q. The TIS calculation formula is as follows:

9

Replacement page (Article 26) Where is the angle of the Theta and Phi axes above; EIS is the power value after the sensitivity ^SENS compensates the gain of the angle darkroom receiving antenna, the unit is Watt; N and M are the test points of Theta and Phi axes respectively, and the standard Theta is 12 Point, Phi is 12 points, EIS _fl EIS^ is the sensitivity of the darkroom receiving antenna rotation horizontal and vertical position test respectively. Among them, Theta only needs to test half of the data due to the symmetry. Therefore, the total number of test points is 6*12*2=144 points.

Since the length of time required for S5 is fixed, the more times S5 is repeated, the longer the total test time will be. In the original algorithm, in order to obtain each sensitivity ^{SENS, it is} necessary to repeat S5 multiple times. The sensitivity of each angle sensitivity ^SEN A and the base station emulator to the initial power is larger, the more repetitions will be, the total test time will be The longer the test efficiency of the WCDMA mobile terminal TIS cannot be improved.

In order to overcome the above drawbacks, the embodiment of the present invention proposes a new TIS test method for a WCDMA mobile terminal, and each sensitivity ^SENSft needs to be obtained only by repeating 2-3 times S5. The specific implementation method is as follows:

First, before the test, conduct a conduction test to determine the CPICH RSCP value when the mobile terminal under transmission reaches the bit error rate standard. The so-called conducted test refers to the test of the WCDMA mobile terminal and the base station emulator using a direct connection of the radio frequency cable. In WCDMA mobile terminals, the conduction sensitivity refers to the transmit power of the base station emulator when the BER exceeds 0.1%. The CPICH RSCP refers to the WCDMA mobile terminal reported by the WCDMA mobile terminal to the base station emulator to measure the chip power of the navigation channel included in the signal transmitted by the base station.

Suppose there is a WCDMA mobile terminal with a CPICH corresponding to its conduction sensitivity.

10 Replacement page (Article 26) RSCP (the WCDMA mobile terminal reporting to the base station emulator detects the chip power of the navigation channel included in the base station transmission signal) is ^P _S en _SC TM _SCP .

The TIS test method of the new WCDMA mobile terminal proposed by the present invention is as follows: Stepl: The WCDMA mobile terminal is powered on, connected to the base station emulator of the OTA test system, and placed on a fixed position on the turntable.

Step 2: The OTA test system controls the Theta axis (Θ axis) and the Phi axis (φ axis) of the turntable 110 to rotate to the first predetermined position.

Step3: The OTA test system controls the darkroom transceiver antenna 120 to rotate to a horizontal position. Step4: The OTA test system controls the base station emulator to the initial power iai (initial: initial). The initial power refers to the starting value of each sensitivity search. Each time the mobile phone changes to a new location, the base station emulator always starts from a relatively high initial transmit power and gradually reduces the power until the bit error rate. Excessive.

Step5: Measure the bit error rate BER of the WCDMA mobile terminal. Meanwhile, the test case to the initial power when ^Ρ, WCDMA mobile terminal measured power of the base station transmission chips CPICH RSCP of the pilot channel signal included in, assumed Plnit CPICH RSCP in the output power of the base station emulator.

Step6: If the BER of the WCDMA mobile terminal is not exceeded, the OTA test system controls the base station emulator to reduce the transmit power. At this time, the test system will set the transmit power to be · Pcell power - ^initial - ( ^Init CPICH RSCP - ^Sens CPICH RSCP ^ ⁺ ^ ⁰ where ΡςβΠ power table ^"" The power that should be set by the base station emulator is defined as the expected sensitivity. ^ The initial initial power for the base station emulator test; ^P -it CP _ICH RSCP representation at the base station emulation When the output power of the device is set to the initial power Pinitial, the WCDMA mobile terminal measures the signal transmitted by the base station.

11 Replacement page (Article 26) The chip power including the navigation channel; P _{SensCPICHRSCP} indicates that in the conduction test, when the WCDMA mobile terminal reaches the sensitivity, the WCDMA mobile terminal measures the chip power of the navigation channel included in the signal transmitted by the base station. The main function of +ldB in the formula is to prevent the base station power from rapidly dropping to the vicinity of the sensitivity, causing the error correction capability of the mobile terminal to exceed the limit, and the terminal enters the decoding unstable state, causing the test error.

Step7: Measure the bit error rate BER of the WCDMA mobile terminal, at which time the bit error rate BER should be very close to 0.1%.

Step 8: If the bit error rate BER does not exceed the standard, then decrease the predetermined value, such as 0.5 dB, of the base station emulator transmit power. If it exceeds the standard, increase the predetermined value, such as 0.5 dB base station power, and retest. Recording the base station emulator transmit power at this time, that is, the sensitivity of the location SENS, wherein the WCDMA mobile terminal does not exceed the error rate when the bit error rate is less than or equal to 0.1%, and the WCDMA mobile terminal has a bit error rate greater than 0.1%.

Step9: Test system controls the darkroom transceiver antenna to rotate to the vertical position, repeat Step4-8

SteplO: Test system control turntable Theta and Phi axes are rotated to the second predetermined position, and repeat Step3-9

Step 11: After all angles of the turntable Theta and Phi axes are tested, the sensitivity ^{SEN of} all positions is weighted according to the formula to obtain the final TIS.

Among them, the Theta axis (Θ axis) is tested every 30°, and the Phi axis (φ axis) is tested every 30 ^Q.

The TIS calculation formula is as follows:

12 Replacement page (Article 26)

Where ^ is the angle of the above Theta and Phi axes; EIS is the sensitivity ^SENS -'*' to compensate the power of the angle darkroom receiving antenna gain, the unit is Watt; N and M are the test points of Theta and Phi axes respectively The standard Theta is 12 points and the Phi is 12 points EIS _e EIS, which is the sensitivity of the darkroom receiving antenna rotation level and vertical position test respectively. Among them, Theta only needs to test half of the data due to the symmetry. Therefore, the total number of test points is 6*12*2=144 points.

Seen from the above, the method of the present embodiment of the invention, each dish ^SEN get up time need only triplicate step 5: at initial power test time, the expected sensitivity ^_P cdl ^P. Test once in _w∞ , search once near ^p «up. So you can shorten each

^SENSe - ^ ^ANT acquisition time, which in turn reduces the total test time of TIS. The algorithm for quickly locating the sensitivity of any position under the radiation (Sensitivity) using the CPICH RSCP value corresponding to the Sensitivity of the WCDMA terminal. This algorithm can improve the sensitivity ( Sensitivity) search time of each angle in the WCDMA TIS test. The overall measurement speed of the WCDMA TIS.

A practical example is given to illustrate the TIS test method of the WCDMA mobile terminal of the present invention:

A WCDMA terminal has a sensitivity of -109dBm measured under conduction. In the conduction test, the WCDMA mobile terminal actually receives the power ^Ps CPICH Rscp when the WCDMA mobile terminal reaches the sensitivity is -112dBm

Put the WCDMA mobile terminal into the OTA darkroom and connect the base in radiation mode

13 Replacement page (Article 26) Station emulator. Control the turntable to rotate to an angle. At this time, when the initial power of the base station emulator is set to -57 dBm, the measured ^p sens c _{PICH RSCP} is -58 dBm.

From this, it can be estimated that the estimated sensitivity at this position is: ^Ρ "ιΐ Ρ<^ = ^Ρ ω _ω -

( ^P I«it CPICH RSCP - ^P Sens CPICH RSCP ) +1=_57_ ( -58- ( -112 ) ) +l=-110dBm.

Then, the base station emulator power is set to -llOdBm, and the test bit error rate BER is 0.056%.

Then search once in the vicinity of the estimated sensitivity ^P "''p<^, that is, reduce the base station power by 0.5dB to -110.5dBm and test. At this time, the bit error rate exceeds the standard. Therefore, the point sensitivity SENS^ is determined, and the layer is _ _{1 10dBin} . of course, the sensitivity of the conduction mode of WCDMA mobile terminal and in some cases conduction test, WCDMA WCDMA mobile terminal when the mobile terminal to reach the sensitivity actually received power ¹ ^ cp ^rncp convenient test. in this case, The TIS test method of the WCDMA mobile terminal according to another embodiment of the present invention may be tested, including the following steps:

Sp 1: The WCDMA mobile terminal is powered on, connected to the base station emulator of the OTA test system, and placed in a fixed position on the turntable.

Sp2: The OTA test system controls the Theta axis (Θ axis;) and the Phi axis (φ axis) of the turntable 110 to rotate to the first predetermined position.

Sp3: The OTA test system controls the darkroom transceiver antenna 120 to rotate to a horizontal position.

Sp4: The OTA test system controls the base station emulator to the initial power ^p wtw (initial: initial). The initial power refers to the starting value of each sensitivity search. Each time the mobile phone changes to a new location, the base station emulator always has a relatively high transmission power from the beginning.

14 Replacement page (Article 26) Start, gradually reduce power until the bit error rate exceeds the standard.

Sp5: Measuring the bit error rate of WCDMA mobile terminals BER

Sp5-1: If the bit error rate of the mobile terminal does not exceed the standard (the WCDMA standard defines that the BER is less than 0.1% ie does not exceed the standard), the test system controls the base station emulator to reduce a predetermined value such as 0.5 dB transmit power.

Sp5-2: Measuring the bit error rate of mobile terminals BER

Sp5-3: If the BER of the WCDMA mobile terminal does not exceed the standard (WCDMA standard is defined as BER less than 0.1% ie not exceeding the standard), repeat Sp5-2 and Sp5-3 until the bit error rate exceeds the standard. When the standard is just exceeded, the base station emulator transmit power at this time is recorded, that is, the sensitivity of the position SENS , and the CPICH at this time is also obtained.

RSCP (CPICH RSCP refers to the chip power of the navigation channel included in the signal transmitted by the WCDMA mobile terminal reported by the WCDMA mobile terminal to the base station emulator) as P ^{Sens CPICH RSCP} ₀

Sp5-4: The OTA test system controls the darkroom transceiver antenna to rotate to the vertical position, and measures the sensitivity of the mobile terminal SENS _{ft ΑΝΤ} at this time. At the same time, test the CPICH at this time

RSCP, set to ^p in" _CP : _{H RSCP} , means that when the base station emulator output power is set to the initial power P _initiaI , the WCDMA mobile terminal measures the chip power of the navigation channel included in the base station transmission signal.

Sp5-5: If the sensitivity of the mobile terminal is not exceeded (the WCDMA standard defines the bit error rate BER to be less than 0.1% ie does not exceed the standard), the test system controls the base station emulator to reduce the transmit power. At this point the test system will set the transmit power to:

Pce!l power = PinitiaI ( ^lnit CPICH RSCP - 3⁄4ens CPICH RSCP ) + . Where ^ceU power ^^

Replacement page (Article 26) The power that the base station emulator should set next is defined as the expected sensitivity. Pinitia! is the initial initial power when testing the base station emulator; PlnitmCHKSCP indicates that when the base station emulator output power is set to the initial power ^p m'"ai, the WCDMA mobile terminal measures the chip power of the navigation channel included in the base station transmission signal; P _{Sens CPICH RSCP} indicates that in the conduction test, when the WCDMA mobile terminal reaches the sensitivity, the WCDMA mobile terminal measures the chip power of the navigation channel included in the signal transmitted by the base station. The main function of the +ldB in the formula is to prevent the base station power from rapidly dropping. Near the sensitivity, the error correction capability of the mobile terminal exceeds the limit, and the terminal enters the decoding unstable state, causing test error.

Sp5-6: Measure the bit error rate BER of the mobile terminal. At this time, the BER should be very close to 0.1% (the WCDMA standard defines that the bit error rate BER is less than 0.1%, that is, it does not exceed the standard).

Sp5-7: If the bit error rate does not exceed the standard, then reduce a predetermined value such as 0.5dB base station power. If it exceeds the standard, increase the predetermined value, such as 0.5dB base station power, and retest. Record the base station emulator transmit power at this time, which is the sensitivity of the position SENS φ, dish,

Sp5-8: The OTA test system controls the darkroom transceiver antenna to rotate to a horizontal position. Sp5-9: The OTA test system controls the base station emulator to initial power Ρ _ω . The initial power ρ _ω refers to the starting value of each sensitivity search. Each time the mobile phone changes to a new location, the base station emulator always starts from a relatively high initial transmit power and gradually reduces the power until the error occurs. The code rate is exceeded.

Sp5-10: Measure the bit error rate BER of a WCDMA mobile terminal. At the same time, the CPICH RSCP at this time is tested and set to ^p mi _tcPICHRSCP , which means that when the output power of the base station emulator is set to the initial power, the WCDMA mobile terminal measures the signal transmitted by the base station.

Replacement page (Article 26) Contains the chip power of the navigation channel.

Sp6: If the BER of the WCDMA mobile terminal does not exceed the standard, the OTA test system controls the base station emulator to reduce the transmit power. At this time, the test system will set the transmit power to ^ ^ceU power - initial - ( ^lnit CPICH RSCP - ^Scns CPICH RSCP ) +1. The P _ce U power table is not the power that should be set by the base station emulator in the next step, and is defined as the expected sensitivity. P^al is the initial initial power when the base station emulator is tested; ^P CP _ICH RSCP indicates that when the base station emulator output power is set to the initial power, the WCDMA mobile terminal measures the chip power of the navigation channel included in the base station transmission signal; _{SensCTICHRSCP} indicates that in the conduction test, when the WCDMA mobile terminal reaches the sensitivity, the WCDMA mobile terminal measures the chip power of the navigation channel included in the signal transmitted by the base station. The main function of +ldB in the formula is to prevent the base station power from rapidly dropping to the vicinity of the sensitivity, causing the error correction capability of the mobile terminal to exceed the limit, and the terminal enters the decoding unstable state, causing the test error.

Sp7: Measure the bit error rate BER of the WCDMA mobile terminal, and the bit error rate BER should be very close to 0.1%.

Sp8: If the bit error rate BER is not exceeded, then decrease a predetermined value such as 0.5 dB base station emulator transmit power. If it exceeds the standard, increase the predetermined value, such as 0.5 dB base station power, and retest. Record the base station emulator transmit power at this time, which is the sensitivity of the position SENS _ft φ. Wherein, the WCDMA mobile terminal does not exceed the standard when the bit error rate is less than or equal to 0.1%, and the WCDMA mobile terminal exceeds the standard when the bit error rate is greater than 0.1%.

Sp9: The test system controls the darkroom transceiver antenna to rotate to the vertical position, repeating

17 Replacement page (Article 26) SplO: The test system controls the turntable Theta and Phi axes to rotate to the second predetermined position, and repeats Sp3-9

Spl l: After all angles of the turntable Theta and Phi axes are tested, the sensitivity of all positions ^SENS A ANT is weighted according to the formula to obtain the final TIS.

Among them, the Theta axis (Θ axis) is tested every 30 ^G and the Phi axis (φ axis) is tested every 30 ^Q. The TIS calculation formula is as follows:

Where 6» is the angle of the above Theta and Phi axes; EIS is the sensitivity ^SENSft *· Compensates the power value of the angle darkroom receiving antenna gain, the unit is Watt; N and M are the test points of Theta and Phi axes respectively The standard Theta is 12 points, and the Phi is 12 points EIS _e EIS^ is the sensitivity of the darkroom receiving antenna rotation horizontal and vertical position test, respectively. Among them, Theta only needs to test half of the data due to the symmetry. Therefore, the total number of test points is 6*12*2=144 points.

A second embodiment of the present invention, an initial test is omitted and conducting sensitivity ^{^Ps} ™ ^sCPICHRSCP, but the measurement time of the first point will be a little longer. However, it is only 1/144 of the total number of tests, so the overall test time will still save a lot. The sensitivity of Sensitivity can be improved by using the CPICH RSCP value corresponding to Sensitivity at any point in the WCDMA terminal radiation mode to improve the sensitivity ( Sensitivity) search time of each angle in the TIS test. The overall measurement speed of the TIS.

18 Replacement page (Article 26) In summary, the TIS test method for a WCDMA mobile terminal provided by the present invention uses a CPICH RSCP value corresponding to a sensitivity (Sisitivity) of a WCDMA terminal to quickly locate a sensitivity (Sithsitivity) at any position under radiation. The sensitivity ( Sensitivity ) search time for each angle in the WCDMA TIS test can be improved, thereby improving the overall measurement speed of the WCDMA TIS.

And the method of using the CPICH RSCP value of the Sensitivity at any point in the WCDMA terminal radiation mode to quickly locate the sensitivity ( Sensitivity ) at any position under the radiation, can improve the sensitivity ( Sensitivity ) search time of each angle in the TIS test, thereby Improve the test efficiency of TIS for WCDMA mobile terminals.

It is to be understood that the application of the present invention is not limited to the above-described examples, and those skilled in the art can make modifications and changes in accordance with the above description. All such modifications and changes are intended to fall within the scope of the appended claims.

19 Replacement page (Article 26)

Claims

Claim

A TIS test method for a WCDMA mobile terminal, characterized in that it comprises the steps of:

First, the WCDMA mobile terminal and the base station emulator are directly connected by RF cable for conducting test. When the WCDMA mobile terminal reaches the bit error rate standard under the conduction test, the WCDMA mobile terminal measures the chip power CPICH RSCP of the navigation channel included in the signal transmitted by the base station. And determining, by the WCDMA mobile terminal, the chip power of the navigation channel included in the signal transmitted by the base station is ^p s» _s c _PICHRSCP ; the method further includes the following steps:

Step4: The OTA test system controls the base station emulator to the initial power;

Step 5: Measure the bit error rate of the WCDMA mobile terminal; and test that when the base station emulator output power is set to the initial power, the WCDMA mobile terminal measures the chip power CPICH RSCP value of the navigation channel included in the base station transmission signal, and sets ^p i"i _tCPI c _HRSCP ; Step6: When the bit error rate of the WCDMA mobile terminal is not exceeded, the OTA test system controls the base station emulator to reduce the transmit power as: P„ _llp = P _initial -

(Plni, CP, CHRSCp-Pse „CPICHRSCp) ⁺ l=where, P _∞Up . _w „ indicates that the next base station emulator should

20 Replacement page (Article 26) The set power is defined as the expected sensitivity. The initial initial power when testing the base station emulator; ^P 'ni' CPICH _RSCP indicates that when the base station emulator output power is set to the initial power P _initial , the WCDMA mobile terminal measures the chip power of the navigation channel included in the base station transmission signal; P _{Sais CPICHRSCP} indicates that in the conduction test, when the WCDMA mobile terminal reaches the sensitivity, the WCDMA mobile terminal measures the chip power of the navigation channel included in the signal transmitted by the base station;

Step7: Measure the bit error rate of the WCDMA mobile terminal at this time;

Step 8: When it is determined that the error rate of the WCDMA mobile terminal at this time does not exceed the standard, the transmit power of the base station emulator is reduced by a predetermined value. When the error rate of the WCDMA mobile terminal exceeds the standard at this time, the transmit power of the base station emulator is increased by one. Predetermined value, retest; record the base station emulator transmit power at this time, which is the sensitivity ^{SEN of} the position

Step9: The OTA test system controls the darkroom transceiver antenna to rotate to the vertical position, repeating step Step 4-8;

Step 10: Test system control turntable Theta and Phi axes are rotated to the second predetermined position, and steps Step 3-9 are repeated;

Stepll: Test system control turntable Theta axis every 30 ^G , Phi axis every 30 ^Q test, when the turntable Theta and Phi axis all angle test is completed, according to the formula:

Weighting the sensitivity of all positions ^^ *· dish to obtain the final TIS; where ^ is the angle of the above Theta and Phi axes, and EIS is the sensitivity

21 Replacement page (Article 26) The dish compensates the power value of the angle chamber receiving antenna gain in watts; N and M are the test points of the Theta and Phi axes, respectively, and the ^{EIS EIS} is the sensitivity of the darkroom receiving antenna rotation level and vertical position test, respectively.

The TIS test method for a WCDMA mobile terminal according to claim 1, wherein the WCDMA mobile terminal does not exceed the standard when the bit error rate is less than 0.1%.

3. The TIS test method for a WCDMA mobile terminal according to claim 1, wherein the predetermined value in the step (Step 8) is 0.5 dB.

4. The TIS testing method for a WCDMA mobile terminal according to claim 1, wherein the first predetermined position is separated from the Theta axis of the second predetermined position by 30 ^Q , and the Phi axis is separated by 30 ^Q.

The TIS test method for a WCDMA mobile terminal according to claim 1, characterized in that the number of test points for setting the Theta and Phi axes is 12 points.

6. A TIS test method for a WCDMA mobile terminal, characterized in that:

First, the WCDMA mobile terminal and the base station emulator are directly connected by RF cable for conducting test. When the WCDMA mobile terminal reaches the bit error rate standard under the conduction test, the WCDMA mobile terminal measures the chip power CPICH RSCP of the navigation channel included in the signal transmitted by the base station. And determining, by the WCDMA mobile terminal, the chip power of the navigation channel included in the signal transmitted by the base station is ^p s» _s c _{PICH RSCP} ; the method further includes the following steps:

22 Replacement page (Article 26) Step 2: The OTA test system controls the Theta axis and the Phi axis of the turntable to rotate to a first predetermined position;

Step3: The OTA test system controls the darkroom transceiver antenna to rotate to the horizontal position.

The method for testing a TIS of a WCDMA mobile terminal according to claim 6, wherein the method further comprises the following steps:

Step4: The OTA test system controls the base station emulator to the initial power; Step 5: Measure the bit error rate of the WCDMA mobile terminal; and test that the WCDMA mobile terminal measures the base station when the base station emulator output power is set to the initial power ^p i»TM The chip power CPICH RSCP value of the navigation channel included in the transmitted signal is set to ^p i _n itc _{PICH RSCP} ;

Step6: When the bit error rate of the WCDMA mobile terminal is not exceeded, the OTA test system controls the base station emulator to reduce the transmit power as: P _MUp = P _initial -

( Pl„it CP.CH RSCp - Psens CPICH RSCp ) ⁺ l' where Ρ„ indicates the power that the base station emulator should set next, which is defined as the expected sensitivity. The initial initial power when testing the base station emulator; ^' CPICH RSCP indicates that when the base station emulator output power is set to the initial power Pinitial, the WCDMA mobile terminal measures the chip power of the navigation channel included in the base station transmission signal; P _Sais TM c _P indicates that in the conduction test, when the WCDMA mobile terminal reaches the sensitivity, the WCDMA mobile terminal measures the chip power of the navigation channel included in the signal transmitted by the base station;

Step7: Measure the bit error rate of the WCDMA mobile terminal at this time;

Step 8: When it is determined that the error rate of the WCDMA mobile terminal at this time does not exceed the standard, the transmit power of the base station emulator is reduced by a predetermined value. When the error rate of the WCDMA mobile terminal exceeds the standard at this time, the transmit power of the base station emulator is increased by one. Predetermined value, retesting

23 Replacement page (Article 26) Record the base station emulator transmit power at this time, which is the sensitivity of the position ^ ^Ν - ANT.

The method for testing a TIS of a WCDMA mobile terminal according to claim 7, wherein the method further comprises the following steps:

SteplO: test system control turntable Theta and Phi axis rotate to the second predetermined position, and repeat steps Step3-9;

Stepll: The test system controls the turntable Theta axis every 30 ^Q , and the Phi axis tests every 30 ^Q. When all the angles of the turntable Theta and Phi axes are tested, according to the formula:

Weighted statistics of the sensitivity of all positions ^3⁄4tJ , to obtain the final TIS; where ^ is the angle of the above Theta and Phi axes, EIS is the sensitivity ^{SENS a} layer to compensate the power of the angle darkroom receiving antenna gain, the unit is watt; N And M are the test points of Theta and Phi axes, respectively, ^EISfl , ^EIS ^, respectively, the sensitivity of the darkroom receiving antenna rotation level and vertical position test.

9. A TIS test method for a WCDMA mobile terminal, characterized in that:

24 Replacement page (Article 26) Sp3: The OTA test system controls the darkroom transceiver antenna to rotate to a horizontal position;

Sp4: OTA test system controls base station emulator to initial power Pini'iai;

Sp5: measuring the bit error rate of the WCDMA mobile terminal;

Sp5-2: measuring the bit error rate of the WCDMA mobile terminal at this time;

Sp5-3: When the BER of the WCDMA mobile terminal does not exceed the standard, repeat Step Sp5-1 and Step Sp5-2 until the bit error rate exceeds the standard; and record the transmit power of the base station emulator when the standard is exceeded, that is, the sensitivity of the position SENS And obtaining, by the WCDMA mobile terminal at this time, the chip power CPICH RSCP of the navigation channel included in the signal transmitted by the base station is ^p swc _HRSCP ;

Sp5-4: The OTA test system controls the darkroom transceiver antenna to rotate to the vertical position, and measures the sensitivity of the mobile terminal at this time, SENS _e . _φ , ; and tests to obtain the base station emulator output power at this time as the initial power ^Ρ ι, WCDMA The mobile terminal measures the chip power of the navigation channel included in the signal transmitted by the base station as ^P m"TM _S a>;

Pcell power = ^initial -. ( ^lnit CPICH RSCP - 3⁄4ens CPICH RSCP ) - - \ ' where ^ cell power ^ ^ The power that the base station emulator should set next is defined as the expected sensitivity; when testing for the base station emulator Initial initial power; ^Ptoit CPICH RSCP indicates that when the base station emulator output power is set to the initial power Pi"*', the WCDMA mobile terminal measures the chip power of the navigation channel included in the base station transmission signal; P _{SOTS CPICH RSCP} indicates conduction testing,

Replacement page (Article 26) When the WCDMA mobile terminal reaches the sensitivity, the WCDMA mobile terminal measures the chip power of the navigation channel included in the signal transmitted by the base station;

Sp5-6: measuring the bit error rate of the mobile terminal;

Sp5-7: When the bit error rate is not exceeded, the power of the base station is reduced by a predetermined value. If the value exceeds the standard, the power of the base station is increased by a predetermined value, and the power is re-tested; and the base station emulator transmit power just after the standard is recorded, that is, the position is Sensitivity SENS _{e φ} , ;

Sp5-8: The OTA test system controls the darkroom transceiver antenna to rotate to a horizontal position;

Sp5-9: The OTA test system controls the base station emulator to the initial power P _initial ;

Sp5-10: measuring the bit error rate of the WCDMA mobile terminal; and testing that when the output power of the base station emulator is set to the initial power ^p _initial , the WCDMA mobile terminal measures the chip power of the navigation channel included in the signal transmitted by the base station as ^p m _ltcPIC H _RSCP ;

Sp6: When the WCDMA mobile terminal error rate does not exceed the standard, the OTA test system controls the base station emulator to reduce the transmit power to P _eellp =P _imtl (P^cPICHRSCp-PsensCP!CHRSCp

+1

Where P _∞llp indicates the power that the base station emulator should set next, which is defined as the expected sensitivity; ^Ρ 'the initial initial power when testing the base station emulator; PfcitCPICHRSCP indicates that when the base station emulator output power is set to the initial power, WCDMA The mobile terminal measures the chip power of the navigation channel included in the signal transmitted by the base station; P _{s∞sa> HRSCT} indicates that the WCDMA mobile terminal detects the code of the navigation channel included in the signal transmitted by the base station when the WCDMA mobile terminal reaches the sensitivity in the conduction test. Chip power

Sp7: measuring the bit error rate of the WCDMA mobile terminal;

Sp8: When it is judged that the error rate of the WCDMA mobile terminal at this time does not exceed the standard, the transmission power of the base station emulator is reduced by a predetermined value, and the WCDMA mobile terminal is erroneous at this time.

26 Replacement page (Article 26) If the rate exceeds the standard, the base station emulator transmit power is increased by the predetermined value, and the test is re-tested; the base station emulator transmit power at this time is recorded, that is, the sensitivity of the position is ^SEN.

Sp9: OTA test system controls the darkroom transceiver antenna to rotate to the vertical position, repeating step Sp4-8;

SplO: test system control turntable Theta and Phi axes are rotated to the second predetermined position, and steps Sp3-9 are repeated;

Spl l : The test system controls the turntable Theta axis every 30 ^Q , and the Phi axis tests every 30 ^G. When all the angles of the turntable Theta and Phi axes are tested, according to the formula:

2 Li

TIS≡

Weighted statistics of the sensitivity of all locations ^3⁄4tJ . to obtain the final TIS; where ^ is the angle of the Theta and Phi axes above, and EIS is the power value of the sensitivity ^{SENSft to} compensate the gain of the angle chamber receiving antenna, in watts; N and M is the test point of the Theta and Phi axes, respectively, ^{EIS ΕΙ} , which is the sensitivity of the darkroom receiving antenna rotation level and vertical position test respectively.

The TIS test method for a WCDMA mobile terminal according to claim 9, wherein the WCDMA mobile terminal does not exceed the standard when the bit error rate is less than 0.1%, and the WCDMA mobile terminal exceeds the standard when the bit error rate is greater than or equal to 0.1%.

The TIS test method for a WCDMA mobile terminal according to claim 9, wherein the predetermined value in the step Sp8 is 0.5 dB.

12. The TIS test method for a WCDMA mobile terminal according to claim 9, wherein the first predetermined position is separated from the Theta axis of the second predetermined position by 30 ^Q.

27 Replacement page (Article 26) The Phi axes are separated by 30 ^Q.

13. The TIS test method for a WCDMA mobile terminal according to claim 9, wherein the number of test points for setting the Theta and Phi axes is 12 points.

14. A TIS test method for a WCDMA mobile terminal, characterized in that it comprises the steps of:

Sp3: The OTA test system controls the darkroom transceiver antenna to rotate to a horizontal position.

The method for testing a TIS of a WCDMA mobile terminal according to claim 14, wherein the method further comprises the following steps:

Sp4: The OTA test system controls the base station emulator to the initial power ^p ii ;

Sp5: measuring the bit error rate of the WCDMA mobile terminal;

Sp5-2: measuring the bit error rate of the WCDMA mobile terminal at this time;

Sp5-3: When the BER of the WCDMA mobile terminal does not exceed the standard, repeat Step Sp5-1 and Step Sp5-2 until the bit error rate exceeds the standard; and record the transmit power of the base station emulator when the standard is exceeded, that is, the sensitivity of the position SENS And obtaining the chip power CPICH RSCP of the navigation channel included in the signal transmitted by the base station of the WCDMA mobile terminal at this time is ^p s^c _{PH RSCP} ;

28 Replacement page (Article 26) Sp5-4: The OTA test system controls the darkroom transceiver antenna to rotate to the vertical position, and measures the sensitivity of the mobile terminal at this time, SENS _fl , ^ _ANT ; and tests to obtain the base station emulator output power at this time as the initial power Pini'ial. The WCDMA mobile terminal measures the chip power of the navigation channel included in the signal transmitted by the base station as ^P m" _CPIC H _RSCP ;

^cell power - Pinitial - ( ^lnit CPICH RSCP - ^ Sens CPICH RSCP ) + 1; where ^cell ower ^^ indicates the power that the base station emulator should set next, which is defined as the estimated sensitivity; when testing for the base station emulator Initial initial power; ^Ρ « CPICH RSCP indicates that when the base station emulator output power is set to initial power", the WCDMA mobile terminal measures the chip power of the navigation channel included in the base station transmission signal; P _s . _nsCTICHRsai indicates in the conduction test When the WCDMA mobile terminal reaches the sensitivity, the WCDMA mobile terminal measures the chip power of the navigation channel included in the signal transmitted by the base station;

Sp5-6: measuring the bit error rate of the mobile terminal;

Sp5-7: When the bit error rate is not exceeded, the base station power is decreased by a predetermined value. If the value exceeds the standard, the base station power is increased by a predetermined value, and the test is re-tested; and the base station emulator transmit power just after the standard is recorded, that is, the position is Sensitivity SENS _fl , layer;

Sp5-10: measuring the bit error rate of the WCDMA mobile terminal; and testing that when the base station emulator output power is set to the initial power, the WCDMA mobile terminal measures the chip power of the navigation channel included in the base station transmission signal as ^p TM _CHRSCP .

29 Replacement page (Article 26)

The method for testing a TIS of a WCDMA mobile terminal according to claim 15, wherein the method further comprises the following steps:

Sp6: When the bit error rate of the WCDMA mobile terminal is not exceeded, the OTA test system controls the base station emulator to reduce the transmit power to P _{rell power} = P _in - ( P _{Mt CP1CH RSCP} - P _{Sens CP1CH RSCP} ) +1;

Among them, P _rellp . ^ indicates the power that the base station emulator should set next, which is defined as the expected sensitivity; ^P ini"al is the initial initial power when the base station emulator is tested; ^P Init CPICH I«CP indicates that the output power of the base station emulator is set to the initial power ^{At the time of P} i^l, the WCDMA mobile terminal measures the chip power of the navigation channel included in the signal transmitted by the base station; P _{Sais CTiai RSCT} indicates that in the transmission test, when the WCDMA mobile terminal reaches the sensitivity, the WCDMA mobile terminal measures the signal transmitted by the base station. The chip power including the navigation channel;

Sp7: measuring the bit error rate of the WCDMA mobile terminal;

Sp8: When it is determined that the error rate of the WCDMA mobile terminal does not exceed the standard at this time, the transmit power of the base station emulator is reduced by a predetermined value. When the error rate of the WCDMA mobile terminal exceeds the standard at this time, the transmit power of the base station emulator is increased by one. The predetermined value, retest; record the base station emulator transmit power at this time, which is the sensitivity ^SEN ANT of the position.

The method for testing a TIS of a WCDMA mobile terminal according to claim 16, wherein the method further comprises the following steps:

Spll: Test system control turntable Theta axis every 30 ^G , Phi axis every 30 ° test

30 replacement page (Article 26) Once, when the turntable Theta and Phi axes are tested at all angles, according to the formula:

Sensitivity ^N Ha weighted statistical all locations, so as to obtain a final the TIS; wherein ^ respectively angle Theta and Phi shaft above, the EIS is the power value of the sensitivity ^SENSft Ha compensate for the angle darkroom receiving antenna gain, in watts; N and M is the number of test points for the Theta and Phi axes, respectively, ^ΕΙ and ^ΕΙ , which are the sensitivity of the darkroom receiving antenna rotation level and vertical position test, respectively.

31

Replacement page (Article 26)