WO2008151488A1 - A device and a method for testing the rf interference between wireless communication systems - Google Patents
A device and a method for testing the rf interference between wireless communication systems Download PDFInfo
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- WO2008151488A1 WO2008151488A1 PCT/CN2007/003623 CN2007003623W WO2008151488A1 WO 2008151488 A1 WO2008151488 A1 WO 2008151488A1 CN 2007003623 W CN2007003623 W CN 2007003623W WO 2008151488 A1 WO2008151488 A1 WO 2008151488A1
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- the coupling coefficient is obtained by testing the interference system with the antenna and the victim system in a darkroom environment.
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Abstract
A device and a method for testing the RF interference between wireless communication systems are provided. The following steps are included in the method: firstly, to connect the RF module of the receiving end and the RF module of the transmitting end in the interfered system with a wired link, and to connect the RF module of the transmitting end in the interfering system to the RF module of the receiving end in the interfered system with an attenuator; secondly, to individually test a group of received frequency spectrum when the interfered system is separately transmitting, and when the interfering system is transmitting as well as the interfered system; thirdly, to analyze the received spectrum and achieve the RF interference condition. Thus, the test of RF interference between wireless communication systems can be accurate, and the testing system can be built easily, without the interference of outer environment.
Description
一种测试无线通信系统间射频干扰的装置和方法 Device and method for testing radio frequency interference between wireless communication systems
技术领域 Technical field
本发明涉及通信系统中的干扰测试装置和方法，尤其涉及一种测试无线 通信系统之间射频千扰的装置和方法。 The present invention relates to interference testing apparatus and methods in communication systems, and more particularly to an apparatus and method for testing radio frequency interference between wireless communication systems.
背景技术 Background technique
通信技术的发展， 致使各种制式的网络并存于市场当中， 例如， 在目前 的 2G网络中并存着 CDMA和 GSM两种通讯网络。 而目前正飞速发展的第 三代移动通信系统与以前的通信系统相比具有更大的带宽和更高的传输速 率， 因而有广阔的发展前景。然而， 由于建网成本较高， 网络布置进度緩慢。 因此， 在今后一定时期内 3G网络不可能单独存在， 其必然经历一段与现阶 段已很成熟的 2G网络共存的时间。 The development of communication technology has led to the coexistence of various types of networks in the market. For example, in the current 2G networks, there are two communication networks, CDMA and GSM. The third-generation mobile communication system, which is currently developing rapidly, has a larger bandwidth and a higher transmission rate than the previous communication system, and thus has a broad development prospect. However, due to the high cost of network construction, the network layout progress is slow. Therefore, in the future, 3G networks cannot exist alone, and they will inevitably experience a period of coexistence with the already mature 2G network.
各种网络并存的现状导致了市场对通讯终端提出了更要的要求，要求终 端能自由地在多种网络间进行切换，包括在同一种模式下的切换和不同模式 下的切换。 然而目前， 这种包括多个系统的终端在工作时存在着一个系统对 其他系统的干扰问题。要保证各系统都能正常工作， 必须预测出一个系统工 作时对其他系统的干扰， 这样才能釆取相应的措施来避免这种干扰的发生。 The current state of coexistence of various networks has led to the market placing more demands on communication terminals, requiring terminals to be free to switch between multiple networks, including switching in the same mode and switching in different modes. However, at present, such a terminal including a plurality of systems has a problem that one system interferes with other systems at work. To ensure that all systems work properly, it is necessary to predict the interference of other systems during the operation of the system so that appropriate measures can be taken to avoid such interference.
系统间相互的干扰有很多种， 在预测系统之间射频干扰时， 由于系统之 间的射频干扰形式多种多样， 逐个考虑各种不同的干扰在实践中很难操作， 因为各种干扰之间都有相互的关系， 一种干扰的强弱会影响到另一种干扰。 另外，对于带天线的系统之间的耦合系数， 由于天线的摆放位置和天线偏角 的差异而无法准确预测其衰减值， 因此很难判断系统之间的射频干扰程度。 There are many kinds of mutual interference between systems. When predicting radio frequency interference between systems, due to various forms of radio frequency interference between systems, it is difficult to operate in practice in consideration of various interferences, because of various interferences. They all have a mutual relationship, and the intensity of one kind of interference will affect another type of interference. In addition, for the coupling coefficient between systems with antennas, the attenuation value cannot be accurately predicted due to the difference between the placement position of the antenna and the antenna off angle, so it is difficult to judge the degree of radio frequency interference between the systems.
发明内容 Summary of the invention
本发明的目的是提供一种测试无线通信系统之间射频干扰的装置和方 法， 可以准确地测试无线通信系统之间射频干扰。 It is an object of the present invention to provide an apparatus and method for testing radio frequency interference between wireless communication systems that can accurately test for radio frequency interference between wireless communication systems.
为达到上述目的，本发明提供了一种测试无线通信系统间射频干扰的方
法， 所述方法包括如下步骤： To achieve the above object, the present invention provides a method for testing radio frequency interference between wireless communication systems. Method, the method includes the following steps:
第一步， 用有线通路连接被干扰系统内部接收端和发射端的射频模块， 并将干扰系统发射端的射频模块与被干扰系统接收端的射频模块通过衰减 器相连； In the first step, the radio frequency module of the internal receiving end and the transmitting end of the interfering system is connected by a wired path, and the radio frequency module of the transmitting end of the interfering system is connected to the radio frequency module of the receiving end of the interfering system through the attenuator;
第二步，分别测试得到被干扰系统单独发射射频时以及干扰系统和被干 扰系统均发射射频时的一组接收频谱； In the second step, a set of receiving spectra are obtained when the interfered system separately transmits the radio frequency and when both the interference system and the interfered system transmit the radio frequency;
第三步， 分析所述接收频谱， 得出射频干扰情况。 In the third step, the received spectrum is analyzed to obtain a radio frequency interference situation.
进一步地， 所述的方法还可具有如下特点： 所述衰减器的衰减值 ·据干 扰系统发射天线和被干扰系统接收天线之间的耦合系数，及收发天线效率来 设置。 Further, the method may further have the following features: The attenuation value of the attenuator is set according to the coupling coefficient between the transmitting antenna of the interference system and the receiving antenna of the interfered system, and the efficiency of the transmitting and receiving antenna.
进一步地， 所述的方法还可具有如下特点： 所述干扰系统发射天线和被 干扰系统接收天线之间的耦合系数是之前对带有天线的所述干扰系统和被 干扰系统在暗室环境中测试得到的。 Further, the method may further have the following feature: the coupling coefficient between the transmitting system of the interference system and the receiving antenna of the interfered system is that the interference system with the antenna and the interfered system are tested in a darkroom environment. owned.
进一步地， 所述的方法还可具有如下特点： 如果得到在某一点时所述干 扰系统发射天线和被干扰系统接收天线之间的耦合系数，则在测试射频干扰 时， 将所述衰减器的衰减值设置为该耦合系数与收发天线效率之和。 Further, the method may further have the following features: if a coupling coefficient between the transmitting system antenna of the interference system and the receiving antenna of the interfered system is obtained at a certain point, when the radio frequency interference is tested, the attenuator is The attenuation value is set to the sum of the coupling coefficient and the efficiency of the transmitting and receiving antennas.
进一步地， 所述的方法还可具有如下特点： 如果得到在限定测试条件干 扰系统发射天线和被干扰系统接收天线之间的耦合系数的取值范围，则在测 试射频干扰时，将所述衰减器的衰减值分别设置为所述耦合系数取值范围的 两个端值与收发天线效率之和， 得到在不同衰减值下测试的所述接收频谱。 Further, the method may further have the following features: if the range of values of the coupling coefficient between the transmitting antenna of the interference system and the receiving antenna of the interfered system is obtained under the defined test condition, the attenuation is performed when testing the radio frequency interference The attenuation values of the devices are respectively set to the sum of the two end values of the range of the coupling coefficient and the efficiency of the transmitting and receiving antennas, and the received spectrums tested under different attenuation values are obtained.
进一步地， 所述的方法还可具有如下特点： 在第二步中， 分别测量多个 噪声情况下的接收频谱，在第三步中， 由每一信噪比对应的噪声下所测得的 被干扰系统单独发射射频时以及干扰系统和被干扰系统均发射射频时的接 收频谱得出射频干扰的种类， 及该信噪比下的误码率。 Further, the method may further have the following features: In the second step, respectively, the received spectrum is measured under multiple noise conditions, and in the third step, measured by the noise corresponding to each SNR. The type of radio frequency interference obtained by the interference system when the radio frequency is separately transmitted and the interference spectrum of the interference system and the interfered system are transmitted, and the error rate under the signal to noise ratio.
本发明还提供了一种测试无线通信系统间射频干扰的装置，该装置至少 包括待测试的包含发射端和接收端的两个无线通信系统，分别作为干扰系统 和被千扰系统，所述被干扰系统内部的发射端和接收端的射频模块之间用有 线通路连接，且所述干扰系统发射端的射频模块与被干扰系统接收端的射频
模块之间通过衰减器连接。 The present invention also provides an apparatus for testing radio frequency interference between wireless communication systems, the apparatus comprising at least two wireless communication systems including a transmitting end and a receiving end to be tested, respectively as an interference system and a disturbed system, the interfered A radio channel between the transmitting end and the receiving end of the system is connected by a wired path, and the radio frequency module of the transmitting end of the interfering system and the radio receiving end of the interfered system Modules are connected by attenuators.
进一步地， 所述的装置还可具有如下特点： 所述衰减器的衰减值 4艮据干 扰系统发射天线和被干扰系统接收天线之间的耦合系数，及收发天线效率来 设置； Further, the device may further have the following characteristics: the attenuation value of the attenuator is set according to a coupling coefficient between the transmitting antenna of the interference system and the receiving antenna of the interfered system, and the efficiency of the transmitting and receiving antennas;
所述耦合系数由带有天线的所述干扰系统和被干扰系统在暗室环境中 测试得到。 The coupling coefficient is obtained by testing the interference system with the antenna and the victim system in a darkroom environment.
进一步地， 所述的装置还可具有如下特点： 所述耦合系数为在某一点时 所述干扰系统发射天线和被干扰系统接收天线的耦合系数值，或者为在限定 测试条件下所述干扰系统发射天线和被千扰系统接收天线的耦合系数的取 值范围； Further, the device may further have the following characteristics: the coupling coefficient is a coupling coefficient value of the transmitting system of the interference system and the receiving antenna of the interfered system at a certain point, or the interference system is under a limited test condition. The range of values of the coupling coefficient of the transmitting antenna and the receiving antenna of the interference system;
所述衰减器的衰减值等于干扰系统发射天线和被干扰系统接收天线之 间的耦合系数值或耦合系数取值范围一端的值与收发天线效率之和。 The attenuation value of the attenuator is equal to the sum of the value of the coupling coefficient value or the value of the coupling coefficient between the interference antenna of the interference system and the receiving antenna of the interfered system and the efficiency of the transmitting and receiving antenna.
进一步地， 所述的装置还可具有如下特点： 所述有线通路连接是通过线 缆直接相连。 Further, the device may also have the following features: The wired access connections are directly connected by a cable.
本发明提供的方法和装置能够准确地测试各无线通信系统之间的射频 干扰， 为终端厂商生产带有多个无线系统的终端提供依据。 同时， 测试系统 的搭建简单， 且测试时不会受到外界环境的干扰。 附图概述 The method and apparatus provided by the present invention are capable of accurately testing radio frequency interference between wireless communication systems, and providing a basis for terminal manufacturers to produce terminals with multiple wireless systems. At the same time, the test system is simple to build and is not subject to interference from the outside environment. BRIEF abstract
图 1为带有天线的无线通信系统间射频干扰的示意图； 1 is a schematic diagram of radio frequency interference between wireless communication systems with antennas;
图 2为本发明测试无线通信系统间射频干扰的系统的结构示意图。 本发明的较佳实施方式 2 is a schematic structural diagram of a system for testing radio frequency interference between wireless communication systems according to the present invention. Preferred embodiment of the invention
下面结合附图， 以双系统为例对本发明进行说明， 应当理解， 此处所描 述的优选实施例仅用于说明和解释本发明， 并不用于限定本发明。 本发明同 样适用于多系统。 The present invention will be described in detail with reference to the accompanying drawings, in which the preferred embodiments of the present invention are intended to illustrate and explain the invention. The invention is equally applicable to multiple systems.
参见图 1， 无线通信系统 A包括发射端和接收端， 发射端包括天线、 射 频模块 A、 基带模块以及其它模块（图中略）， 接收端包括天线、 射频模块
A， 、 基带模块以及其它模块（图中略） ； 无线通信系统 B包括发射端和接 收端， 发射端包括射频模块 B、 基带模块以及其它模块（图中略）， 接收端 包括天线、 射频模块 B， 、 基带模块以及其它模块（图中略） 。 带天线的系 统 A和 B之间的耦合系数由于天线的摆放位置和天线偏角的差异而无法准 确测试， 因此难以测试系统间的射频干扰。 为了测试天线之间的耦合系数， 必须使两系统置于有电磁屏蔽的暗室中以防止外界环境的干扰，并不断调试 天线之间的方位角和距离， 而天线耦合系数在每一点的值都不同， 因此非常 难以测试。 但对于一定的系统来说， 在某一点（即两个系统的天线位置和偏 角均为某一确定值） 时天线之间的耦合系数值是可测的， 设为 a; 或者在限 定测试条件（即两个系统的天线位置和偏角在一定的变化范围内）的情况下， 系统天线的耦合系数可以确定在一定的范围 （b， c ) 内。 Referring to FIG. 1, a wireless communication system A includes a transmitting end and an receiving end. The transmitting end includes an antenna, a radio frequency module A, a baseband module, and other modules (not shown), and the receiving end includes an antenna and a radio frequency module. A, , baseband module and other modules (not shown); wireless communication system B includes a transmitting end and a receiving end, the transmitting end includes a radio frequency module B, a baseband module and other modules (not shown in the figure), and the receiving end includes an antenna and a radio frequency module B, , baseband modules and other modules (slightly shown). The coupling coefficient between the systems A and B with antennas cannot be accurately tested due to the difference in the placement position of the antennas and the angle of the antennas, so it is difficult to test the radio frequency interference between the systems. In order to test the coupling coefficient between the antennas, the two systems must be placed in a dark room with electromagnetic shielding to prevent interference from the external environment, and the azimuth and distance between the antennas are constantly adjusted, and the values of the antenna coupling coefficients at each point are Different, so it is very difficult to test. However, for a certain system, the coupling coefficient between the antennas is measurable at a certain point (ie, the antenna position and the off-angle of both systems are certain values), set to a; or in the limit test In the case where the condition (ie, the antenna position and the off-angle of the two systems are within a certain range of variation), the coupling coefficient of the system antenna can be determined within a certain range (b, c).
图 2 示出了本发明实施例测试系统的结构， 同样包括无线通信系统 A 和 B 的发射端和接收端， 但这些发射端和接收端均没有设置天线， 而是用 电缆 A连接系统 A发射端的射频模块 A和接收端的射频模块 Α', 用电缆 Β 连接系统 Β发射端的射频模块 Β和接收端的射频模块 Β，。 并在射频模块 A 和射频模块 B，之间加入一衰减器， 此衰减器用来模拟干扰系统的发射天线 与被干扰系统的接收天线之间的耦合和在天线上损失的功率。这样， 测试结 果基本不受天线的位置和偏角及外界环境的影响， 只受系统内部的射频干 扰， 测量结果更准确。 而且测试系统的构成更筒单， 成本更低。 2 shows the structure of the test system of the embodiment of the present invention, which also includes the transmitting end and the receiving end of the wireless communication systems A and B, but these transmitting end and receiving end are not provided with an antenna, but are connected by cable A to system A. The RF module A at the end and the RF module 接收' at the receiving end are connected by cable Β to the RF module Β of the transmitting end and the RF module 接收 of the receiving end. An attenuator is added between the RF module A and the RF module B. The attenuator is used to simulate the coupling between the transmitting antenna of the interference system and the receiving antenna of the interfered system and the power lost on the antenna. In this way, the test results are basically unaffected by the position and declination of the antenna and the external environment. The measurement results are more accurate only due to RF interference inside the system. Moreover, the test system has a simpler structure and lower cost.
假定已经基于图 1的系统构架测出干扰系统 A发射天线和被干扰系统 B 接收天线之间的耦合系数为可测值 a， 则可直接将图 2中衰減器的衰减值设 为 a，， a，的值为 a (单位为 dB )与收发天线效率（ dB )之和（即耦合系数 a、 发射天线的效率与接收天线的效率之和） ， 这样系统 A的射频在发射功率 衰减一定值后直接进入系统 B 的接收端， 避免了加入天线后的调试。 通过 控制系统 A是否加入测试， 可以得到加入系统 A影响后的系统 B的发射频 谱 F2和接收频谱 F2，， 以及系统 B单独工作时的发射频谱 F1和接收频谱 F1O 即 F2与 F2，为系统 A和系统 B均发射射频时（有干扰情况下）测得的 频谱， F1和 Fl，为系统 B单独发射射频时 （无干扰情况下）测得的频谱。 Assuming that the coupling coefficient between the interference system A transmitting antenna and the victim system B receiving antenna has been measured based on the system architecture of FIG. 1 as the measurable value a, the attenuation value of the attenuator in FIG. 2 can be directly set to a, The value of a, the sum of a (in dB) and the efficiency of the transmitting and receiving antenna (dB) (ie, the coupling coefficient a, the sum of the efficiency of the transmitting antenna and the efficiency of the receiving antenna), so that the radio frequency of the system A is attenuated by a certain value in the transmitting power. After directly entering the receiving end of system B, the debugging after adding the antenna is avoided. By controlling whether the system A joins the test, the transmission spectrum F2 and the reception spectrum F2 of the system B after being affected by the system A can be obtained, and the transmission spectrum F1 and the reception spectrum F1O, that is, F2 and F2 when the system B operates alone, are the system A. And the spectrum measured by the system B when transmitting radio frequency (in the case of interference), F1 and Fl, are the spectrum measured when the system B transmits the radio frequency separately (without interference).
若已经基于图 1 的系统架构测出干扰系统 A发射天线和被干扰系统 B
接收天线之间的耦合系数在一定的范围 （b， c ) 内， 则先将图 2中衰减器的 衰减值设为 b，， b，的值为 b ( dB )与收、 发天线效率 （dB )之和， 系统 A 和系统 B按照前述方法发射射频， 测出加入系统 A影响后的系统 B的发射 频谱 F2和接收频谱 F2，以及系统 B单独工作时的发射频语 F1和接收频谱 Fl，； 再将衰减值设为 c，， c，的值为 c ( dB )与收、 发天线效率 （dB )之和， 按照前述方法得出系统 A和系统 B均发射射频时的频谱 F2与 F2，， 以及系 统 B单独发射射频时的频谱 F1和 Fl，。 If the interference system A transmit antenna and the interfered system B have been measured based on the system architecture of FIG. When the coupling coefficient between the receiving antennas is within a certain range (b, c), the attenuation value of the attenuator in Figure 2 is first set to b, and the value of b, b (dB) and the efficiency of the transmitting and receiving antennas ( The sum of dB), system A and system B transmit radio frequency according to the foregoing method, and measure the transmission spectrum F2 and the reception spectrum F2 of system B after the influence of system A, and the transmission frequency F1 and the reception spectrum F1 when system B works alone. , and then set the attenuation value to c, and the value of c, and the sum of the efficiency of the transmitting and transmitting antennas (dB). According to the foregoing method, the spectrum F2 when both system A and system B emit radio frequencies are obtained. F2,, and the spectrum F1 and Fl of system B when transmitting RF alone.
上述衰减器的衰减值除了通过图 1的系统来实际测试外，也可以采用其 它方法如借助他人的测试数据， 根据理论推导等。 The attenuation value of the attenuator described above may be actually tested in addition to the system of Fig. 1, and other methods such as testing data by others, theoretical derivation, etc. may be employed.
由于在测试过程中，要改变噪声值， 所以所述的频谱是在不同噪声值下 的一组频谱。通过分析上述频语的值， 可分析射频干扰的种类和相应的射频 参数。 对接收机来说， 射频干扰的种类总的来说可分为接收频带内干扰（也 可称为带外干扰， 即射频段外的频率进入接收频段内的干扰）和接收频带外 的干扰（也称为阻塞干扰） 。 如 Fl，和 F2，的差值在接收频段内， 则为带外 干扰， 如 Fl，和 F2，的差值在接收频带外， 则为阻塞干扰。 相应的射频参数 主要有信噪比、 误码率， 接收灵敏度。 射频干扰可以用信噪比， 误码率来表 征，要测量射频干扰只需得到误码率或者灵敏度回退率即可（本实施例是采 用误码率）。 通过信噪比可以推导接收灵敏度。 当系统确定后， 信噪比由噪 声来确定，噪声是测试中的已知条件。在任一信噪比下的误码率可由其对应 即用两个接收频谱面积的差值的绝对值除以无干扰情况下的接收频谱的面 积得到，如本实施例可通过 F2，减去 Fl，的频谱面积差值与 Fl，的频谱面积之 比计算误码率， 从而可得出信噪比与误码率关系的曲线图。 Since the noise value is to be changed during the test, the spectrum is a set of spectra at different noise values. By analyzing the values of the above frequencies, the type of radio frequency interference and the corresponding radio frequency parameters can be analyzed. For receivers, the types of radio frequency interference can be generally classified into interference within the receiving band (also known as out-of-band interference, that is, interference outside the RF segment into the receiving band) and interference outside the receiving band ( Also known as blocking interference). If the difference between Fl, and F2 is in the receiving band, then the out-of-band interference, such as Fl, and F2, is the blocking interference outside the receiving band. The corresponding RF parameters mainly include signal-to-noise ratio, bit error rate, and receiving sensitivity. Radio frequency interference can be characterized by signal-to-noise ratio and bit error rate. To measure radio frequency interference, only the bit error rate or sensitivity back-off rate can be obtained (this example uses the bit error rate). Receive sensitivity can be derived from the signal to noise ratio. When the system is determined, the signal-to-noise ratio is determined by the noise, which is a known condition in the test. The error rate at any signal-to-noise ratio can be obtained by dividing the absolute value of the difference between the two received spectral areas by the area of the received spectrum without interference. For example, F1 can be subtracted from F1. The ratio of the spectral area difference to the spectral area of Fl, the error rate is calculated, and the relationship between the signal-to-noise ratio and the bit error rate can be obtained.
工业实用性 本发明的装置和方法可用于测试无线通信系统之间的射频干扰，为终端 厂商生产带有多个无线系统的终端提供依据。
Industrial Applicability The apparatus and method of the present invention can be used to test radio frequency interference between wireless communication systems, providing a basis for terminal manufacturers to produce terminals with multiple wireless systems.
Claims
1、 一种测试无线通信系统间射频干扰的方法， 其特征在于， 所述方法 包括如下步骤： A method for testing radio frequency interference between wireless communication systems, characterized in that the method comprises the following steps:
第一步， 用有线通路连接被干扰系统内部接收端和发射端的射频模块， 并将干扰系统发射端的射频模块与被干扰系统接收端的射频模块通过衰减 器相连； In the first step, the radio frequency module of the internal receiving end and the transmitting end of the interfering system is connected by a wired path, and the radio frequency module of the transmitting end of the interfering system is connected to the radio frequency module of the receiving end of the interfering system through the attenuator;
第二步，分别测试得到被干扰系统单独发射射频时以及干扰系统和被干 扰系统均发射射频时的一组接收频谱； In the second step, a set of receiving spectra are obtained when the interfered system separately transmits the radio frequency and when both the interference system and the interfered system transmit the radio frequency;
第三步， 分析所述接收频谱， 得出射频干扰情况。 In the third step, the received spectrum is analyzed to obtain a radio frequency interference situation.
2、 如权利要求 1所述的方法， 其特征在于， 2. The method of claim 1 wherein:
所述衰减器的衰减值根据干扰系统发射天线和被干扰系统接收天线之 间的耦合系数， 及收发天线效率来设置。 The attenuation value of the attenuator is set according to the coupling coefficient between the transmitting antenna of the interference system and the receiving antenna of the interfered system, and the efficiency of the transmitting and receiving antenna.
3、 如权利要求 2所述的方法， 其特征在于， 3. The method of claim 2, wherein
所述干扰系统发射天线和被干扰系统接收天线之间的耦合系数是之前 对带有天线的所述干扰系统和被干扰系统在暗室环境中测试得到的。 The coupling coefficient between the interfering system transmit antenna and the victim system receive antenna is previously tested in the darkroom environment for the interfering system with the antenna and the interfered system.
4、 如权利要求 2或 3所述的方法， 其特征在于， 4. The method of claim 2 or 3, wherein
如果得到在某一点时所述干扰系统发射天线和被千扰系统接收天线之 间的耦合系数， 则在测试射频干扰时， 将所述衰减器的衰减值设置为该耦合 系数与收发天线效率之和。 If the coupling coefficient between the transmitting system antenna of the interference system and the receiving antenna of the interference system is obtained at a certain point, when the radio frequency interference is tested, the attenuation value of the attenuator is set to the coupling coefficient and the efficiency of the transmitting and receiving antenna. with.
5、 如权利要求 2或 3所述的方法， 其特征在于， 5. The method of claim 2 or 3, wherein
如果得到在限定测试条件干扰系统发射天线和被干扰系统接收天线之 间的耦合系数的取值范围， 则在测试射频千扰时，将所述衰减器的衰减值分 别设置为所述耦合系数取值范围的两个端值与收发天线效率之和，得到在不 同衰减值下测试的所述接收频谱。 If the range of the coupling coefficient between the transmitting antenna of the interference system and the receiving antenna of the interfered system is obtained under the limited test condition, when the RF interference is tested, the attenuation value of the attenuator is set to the coupling coefficient respectively. The sum of the two end values of the range of values and the efficiency of the transmitting and receiving antennas results in the received spectrum tested at different attenuation values.
6、 如权利要求 1或 2或 3所述的方法， 其特征在于，
在第二步中， 分别测量多个噪声情况下的接收频谱， 在第三步中， 由每 一信噪比对应的噪声下所测得的被干扰系统单独发射射频时以及干扰系统 和被干扰系统均发射射频时的接收频谱得出射频干扰的种类，及该信噪比下 的误码率。 6. The method of claim 1 or 2 or 3, wherein In the second step, the received spectrum is measured separately under multiple noise conditions. In the third step, the interfered system measured by the noise corresponding to each signal-to-noise ratio separately transmits the radio frequency and the interference system and is interfered. The receiving spectrum of the system when transmitting radio frequency results in the type of radio frequency interference and the bit error rate under the signal to noise ratio.
7、 一种测试无线通信系统间射频干扰的装置， 该装置至少包括待测试 的包含发射端和接收端的两个无线通信系统，分别作为干扰系统和被千扰系 统，其特征在于， 所述被千扰系统内部的发射端和接收端的射频模块之间用 有线通路连接，且所述干扰系统发射端的射频模块与被干扰系统接收端的射 频模块之间通过衰减器连接。 7. A device for testing radio frequency interference between wireless communication systems, the device comprising at least two wireless communication systems including a transmitting end and a receiving end to be tested, respectively as an interference system and a victimized system, characterized in that said The radio frequency module of the transmitting end and the receiving end of the interference system is connected by a wired path, and the radio frequency module of the transmitting end of the interfering system and the radio frequency module of the receiving end of the interfering system are connected by an attenuator.
8、 如权利要求 7所述的装置， 其特征在于， 8. Apparatus according to claim 7 wherein:
所述衰减器的衰减值根据干扰系统发射天线和被干扰系统接收天线之 间的耦合系数， 及收发天线效率来设置； The attenuation value of the attenuator is set according to a coupling coefficient between the transmitting antenna of the interference system and the receiving antenna of the interfered system, and the efficiency of the transmitting and receiving antenna;
所述耦合系数由带有天线的所述干扰系统和被干扰系统在暗室环境中 测试得到。 The coupling coefficient is obtained by testing the interference system with the antenna and the victim system in a darkroom environment.
9、 如权利要求 8所述的装置， 其特征在于， 9. Apparatus according to claim 8 wherein:
所述耦合系数为在某一点时所述千扰系统发射天线和被干扰系统接收 天线的耦合系数值，或者为在限定测试条件下所述干扰系统发射天线和被干 扰系统接收天线的耦合系数的取值范围； The coupling coefficient is a coupling coefficient value of the transmitting antenna of the interference system and the receiving antenna of the interfered system at a certain point, or a coupling coefficient of the transmitting antenna of the interference system and the receiving antenna of the interfered system under the defined test condition. Ranges;
所述衰减器的衰减值等于干扰系统发射天线和被干扰系统接收天线之 间的耦合系数值或耦合系数取值范围一端的值与收发天线效率之和。 The attenuation value of the attenuator is equal to the sum of the value of the coupling coefficient value or the value of the coupling coefficient between the interference antenna of the interference system and the receiving antenna of the interfered system and the efficiency of the transmitting and receiving antenna.
10、 如权利要求 7所述的装置，其特征在于， 所述有线通路连接是通过 线缆直接相连。
10. Apparatus according to claim 7 wherein said wired path connections are directly connected by cables.
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