WO2008061419A1 - Dispositif de test et procédé de transmission de puissance maximale d'un terminal mobile - Google Patents

Dispositif de test et procédé de transmission de puissance maximale d'un terminal mobile Download PDF

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Publication number
WO2008061419A1
WO2008061419A1 PCT/CN2007/002325 CN2007002325W WO2008061419A1 WO 2008061419 A1 WO2008061419 A1 WO 2008061419A1 CN 2007002325 W CN2007002325 W CN 2007002325W WO 2008061419 A1 WO2008061419 A1 WO 2008061419A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
signal
interference ratio
mobile terminal
maximum transmit
Prior art date
Application number
PCT/CN2007/002325
Other languages
English (en)
Chinese (zh)
Inventor
Zhong Yu
Hongli Peng
Chen Lu
Original Assignee
Zte Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zte Corporation filed Critical Zte Corporation
Publication of WO2008061419A1 publication Critical patent/WO2008061419A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters
    • H04B17/15—Performance testing
    • H04B17/19—Self-testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters
    • H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
    • H04B17/102—Power radiated at antenna

Definitions

  • the present invention relates to the field of communications, and in particular to a maximum transmit power test apparatus and method for a mobile terminal.
  • the maximum transmit power of a mobile terminal is an indicator for measuring its maximum transmit capability, and the compression power point is the ability of its transmit power to increase with input power.
  • the output power of the power amplifier in the mobile terminal increases linearly with the increase of the power of the terminal input signal, but when the output power exceeds the compression power point and approaches the maximum transmission power, the output power of the amplifier gradually exhibits nonlinearity. characteristic.
  • the nonlinear distortion of the power amplifier causes it to generate new frequency components, such as second harmonic and happy beat frequency for second-order distortion, and third harmonic and multi-tone beat for third-order distortion. If these new frequency components fall within the passband, they will directly interfere with the transmitted signal. If they fall outside the passband, they will interfere with the signals of other channels.
  • high speed downlink packet access High Speed Downlink Package
  • HSDPA High Speed Dedicated Physical Control Channel
  • E-DPCCH Enhanced Dedicated Physical Control Channel
  • E-DCH Dedicated Physical Control Channel E-DCH Dedicated Physical Control Channel Multi-code operation referred to as E-DPDCH
  • PAPR Peak-to-Average Power Ratio
  • Cubic Metric Cubic Metric
  • the present invention provides a maximum transmit power testing apparatus and method for a mobile terminal.
  • the maximum transmit power test apparatus includes: a parameter setting module, configured to set a radio frequency parameter and configure a composite channel, and set the mobile terminal to enter a loopback test; and a power gain adjustment module connected to the parameter setting module Estimating a signal to interference ratio of the channel, and adjusting a power gain according to a difference between a signal to interference ratio estimate and a system limit signal to interference ratio; and a maximum transmit power determining module coupled to the power gain adjustment module for power With the gain remaining the same, the signal is transmitted and the maximum transmit power of the signal is calculated.
  • the power gain adjustment module includes: a signal to interference ratio estimation module, configured to send data to the mobile terminal, and estimate a signal to interference ratio of the channel according to a response of the mobile terminal; a power growth step size determining module, configured to use the estimated signal The dry ratio and the system limit signal to interference ratio are used to determine the next power growth step; the power gain determination module is configured to set the power control command to 1 if the estimated signal to interference ratio is less than the system limit signal to interference ratio. In the case where the estimated signal-to-interference ratio is greater than the system limit signal-to-interference ratio, the power control command is set to 0; and in the case where the power control command is 1, the power gain is determined as the sum of the previous power and the power growth step.
  • the power gain is determined as the difference between the previous power and the power growth step, and in the case where the power control command is non-zero and non-1, the power gain is kept unchanged.
  • the power gain adjustment module determines the power gain by transmitting the signal multiple times until the power gain remains unchanged.
  • the power growth step size is determined by at least one of the following methods: a spline difference method and an Emile difference method.
  • the maximum transmit power test apparatus according to the present invention is for testing at least one of the following mobile terminals: a wideband code division multiple access mobile terminal, a high speed downlink packet access terminal, and a high speed uplink packet access terminal.
  • the maximum transmit power test method includes the following steps: S202, setting RF parameters And configuring the composite channel, and setting the mobile terminal to enter the loopback test; S204, estimating the signal to interference ratio of the channel, and adjusting the power gain according to the difference between the signal to interference ratio and the system limit signal to interference ratio, in the channel In the case where the gain is changed, the data is repeatedly transmitted to the mobile terminal and the power gain is adjusted until the power gain remains unchanged; and S206, while the power gain remains unchanged, the signal is transmitted and the maximum transmit power of the signal is calculated.
  • Step S204 includes the following steps: Step S204-2: Send data to the mobile terminal, and estimate the signal to interference ratio of the channel according to the response of the mobile terminal; S204-4, the estimated signal to interference ratio and the system limit letter a ratio of power to determine the next power growth step; and S204-6, in the case where the estimated signal to interference ratio is less than the system limit signal to interference ratio, the power control command is set to 1, and the estimated signal to interference ratio is greater than In the case of the system limit signal to interference ratio, the power control command is set to 0; in the case where the power control command is 1, the power gain is determined as the sum of the previous power and the power growth step, and the power control command is 0. In the case, the power gain is determined as the difference between the previous power and the power growth step.
  • the power growth step size is determined by at least one of the following methods: a spline difference method and an Emile difference method.
  • the maximum transmit power test method according to the present invention can be tested by resetting the radio frequency parameters and reconfiguring the composite channel.
  • the maximum transmit power test method of the present invention is used to test at least one of the following mobile terminals: a wideband code division multiple access mobile terminal, a high speed downlink packet access terminal, and a high speed uplink packet access terminal.
  • the present invention improves the test accuracy and speed by using the difference method to test the maximum transmit power of the mobile terminal, and provides a solution for promoting the conformance test of the WCDMA/HSDPA/HSUPA terminal.
  • BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
  • FIGS. 2A and 2B are diagrams of a maximum transmit power test method for a mobile terminal according to an embodiment of the present invention
  • Flowchart and
  • FIG. 3 is a flow chart of a method for testing a maximum transmit power for a mobile terminal in accordance with another embodiment of the present invention.
  • WCDMA Wideband Code Division Multiple Access
  • the maximum transmit power test apparatus includes: a parameter setting module 102, configured to set a radio frequency parameter and configure a composite channel, and set the mobile terminal to enter a loopback test; the power gain adjustment module 104, connected to the parameter setting a module, configured to estimate a signal to interference ratio of the channel, and adjust a power gain according to a difference between a signal to interference ratio estimate and a system limit signal to interference ratio; and a maximum transmit power determining module 106 coupled to the power gain adjustment module, configured to With the power gain remaining the same, the signal is transmitted and the maximum transmit power of the signal is calculated.
  • a parameter setting module 102 configured to set a radio frequency parameter and configure a composite channel, and set the mobile terminal to enter a loopback test
  • the power gain adjustment module 104 connected to the parameter setting a module, configured to estimate a signal to interference ratio of the channel, and adjust a power gain according to a difference between a signal to interference ratio estimate and a system limit signal to interference ratio
  • a maximum transmit power determining module 106
  • the power gain adjustment module 104 includes: a signal to interference ratio estimation module 104-2, configured to send data to the mobile terminal, and estimate a signal to interference ratio of the channel in response to the mobile terminal; a determining module 104-4, configured to determine a next power growth step according to the estimated signal to interference ratio and a system limit signal to interference ratio; the power gain determining module 104-6, configured to estimate that the signal to interference ratio is less than the system
  • the limit signal to interference ratio the power control command is set to 1, and the power control command is set to 0 when the estimated signal to digital ratio is greater than the system limit signal to interference ratio; and the power control command is 1 when the power control command is 1.
  • the power gain is determined as the sum of the previous power and the power growth step.
  • the power gain adjustment module determines the power gain by transmitting the signal multiple times until the power gain remains unchanged.
  • the maximum transmit power test apparatus may be used to test at least one of the following mobile terminals: a wideband code division multiple access mobile terminal, a high speed downlink packet access terminal, and a high speed uplink packet access terminal.
  • the maximum transmit power test method includes the following steps: S202, setting radio frequency parameters and configuring a composite channel, and setting a mobile terminal to enter a loopback test; S204, estimating a channel to interference ratio, and according to the signal The power gain is adjusted by the difference between the ratio estimate and the system limit signal-to-interference ratio, and in the case where the channel gain is changed, the data is repeatedly transmitted to the mobile terminal and the power gain is adjusted until the power gain remains unchanged; and S206, at the power gain With the same constant, the signal is transmitted and the maximum transmit power of the signal is calculated. As shown in FIG.
  • step S204 includes: S204-2, transmitting data to the mobile terminal, and estimating a signal to interference ratio of the channel according to the response of the mobile terminal; S204-4, estimating the signal to interference ratio and The system limits the signal-to-interference ratio to determine the next power growth step; and S204-6, in the case where the estimated signal-to-interference ratio is less than the system limit signal-to-interference ratio, the power control command is set to 1, in the estimated letter When the dry ratio is greater than the system limit signal to interference ratio, the power control command is set to 0; when the power control command is 1, the power gain is determined as the sum of the previous power and the power growth step, in the power control command In the case of 0, the power gain is determined as the difference between the previous power and the power growth step, and in the case where the power control command is non-zero and non-one, the power gain is kept constant.
  • the power growth step size can be determined by at least one of the following methods: a spline difference method and an Emile difference method.
  • the maximum transmit power test method according to an embodiment of the present invention can be tested by resetting radio frequency parameters and reconfiguring the composite channel.
  • the maximum transmit power test method according to an embodiment of the present invention may be used to test at least one of the following mobile terminals: a wideband code division multiple access mobile terminal, a high speed downlink packet access terminal, and a high speed uplink packet access terminal.
  • 3 is a flow chart of a method for testing a maximum transmit power for a mobile terminal in accordance with another embodiment of the present invention. As shown in FIG. 3, the maximum transmit power test method includes the following steps:
  • S302-S304 setting radio frequency parameters according to the standard, and determining a high-speed data channel and a channel of a dedicated physical control channel (DPCCH) Channel configuration, adjust DPCCH, and DPDCH, and other high-speed control or traffic channels (eg, HS-DPCCH), and E-DCH power ratio (configuration A, A, , and "equal power control coefficients"), establish a high-speed data channel Call, allocate the power of each subchannel, and set the mobile terminal to enter the loopback test.
  • DPCCH dedicated physical control channel
  • HS-DPCCH high-speed control or traffic channels
  • E-DCH power ratio configuration A, A, , and "equal power control coefficients
  • S306 select the initial transmit signal power P1 within the standard specified range, and the initial transmit signal power P1 sends the data sent through the high speed data channel to The mobile terminal to be tested, and the Signal to Interference Noise Ratio (SIR) is estimated from the received signal;
  • SIR Signal to Interference Noise Ratio
  • TPC ASIR Transmit Power Control
  • the corresponding high-speed data is transmitted, high-speed data services are performed, the average transmit power is calculated, and the SIR value is obtained.
  • the present invention changes the point-by-point scanning method in the existing test method. According to the interpolation estimation of the last received SIR estimate and the system limit allowable SIR, the interpolation method is used to estimate the increase step size of the current transmission, and the effective reduction is effectively reduced. Test cycle, improve test accuracy and test error, and effectively prevent The test output is too large and the output power is too large, causing damage to the amplifier and related devices, improving the safety and reliability of the test.
  • the present invention solves the problem that the channel configuration increases after the introduction of the HSDPA and HSUPA technologies in the WCDMA mobile terminal, and the maximum output power test time and test accuracy of the mobile terminal need to be improved.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un dispositif de test et un procédé de transmission maximale de la puissance du terminal mobile. Le dispositif de test comprend un module de réglage des paramètres (102), conçu pour régler un paramètre RF et pour attribuer un canal comportant des composés, et pour régler le terminal mobile par test de la boucle de renvoi; un module de réglage de gain de puissance (104) connecté au module de réglage de paramètre (102), pour estimer le SIR du canal et pour ajuster le gain de puissance en fonction de la valeur de différence entre la valeur d'estimation de SIR et le SIR optimal du système; et un module de confirmation de puissance de transmission maximale (106), connecté au module de réglage de gain de puissance (104), conçu pour transmettre le signal et pour calculer la puissance de transmission maximale du signal lorsque la puissance de gain reste contante. Le dispositif et le procédé permettent d'améliorer la précision et la vitesse de test.
PCT/CN2007/002325 2006-11-23 2007-08-02 Dispositif de test et procédé de transmission de puissance maximale d'un terminal mobile WO2008061419A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610144838.3 2006-11-23
CN 200610144838 CN101068120B (zh) 2006-11-23 2006-11-23 最大发射功率测试装置和方法

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WO2008061419A1 true WO2008061419A1 (fr) 2008-05-29

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Publication number Priority date Publication date Assignee Title
CN101741479B (zh) * 2008-11-04 2014-03-12 中兴通讯股份有限公司 一种最大发射功率回退和邻道泄露比率的联合测试方法
CN101404806B (zh) * 2008-11-24 2010-04-21 北京天碁科技有限公司 一种测试无线终端设备hsdpa解调解码性能的方法及系统
CN102487543B (zh) * 2010-12-02 2014-07-16 鼎桥通信技术有限公司 一种高速上行分组接入授权的调整方法
CN102487300B (zh) * 2010-12-03 2015-01-28 中兴通讯股份有限公司 一种多天线用户设备最大发射功率的测试方法及系统
CN102547949B (zh) * 2010-12-22 2015-07-01 中国移动通信集团江苏有限公司 一种移动通信系统中的功率控制方法和装置
CN105657742B (zh) * 2016-03-11 2019-01-01 中国联合网络通信集团有限公司 移动终端的功率测量方法和基站模拟设备

Citations (2)

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EP1545021A1 (fr) * 2000-09-12 2005-06-22 NTT DoCoMo, Inc. Emetteur-récepteur sans fil à AMCR et procédé de commande de la puissance de transmission pour un appareil de communication à AMCR sans fil
CN1805313A (zh) * 2005-11-21 2006-07-19 海信集团有限公司 移动终端的快速并行射频测试系统及其测试方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1545021A1 (fr) * 2000-09-12 2005-06-22 NTT DoCoMo, Inc. Emetteur-récepteur sans fil à AMCR et procédé de commande de la puissance de transmission pour un appareil de communication à AMCR sans fil
CN1805313A (zh) * 2005-11-21 2006-07-19 海信集团有限公司 移动终端的快速并行射频测试系统及其测试方法

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CN101068120A (zh) 2007-11-07
CN101068120B (zh) 2011-08-10

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