201105056 六、發明說明： 【發明所屬之技術領域】 本發明涉及一種莖敏度測試系統及方法，尤其是一種 通訊裝置訊號接收靈敏度測試系統及方法。 【先前技術】 訊號接收靈敏度是衡量通訊裝置性能的一個基本指 才不因此，訊號接收莖敏度測試的準確性在通訊裝置的所 有測試專案中顯得格外重要。在訊號接收$敏度測試過程 中，待測通訊裝置需放置在測試暗室中作測試，以最大化 遮罩其他電波的干擾。賴戦暗室可分為鮮測試暗室 和非標準測試暗室。所述標準贼暗室必須是標準的矩 形，發送和接收訊號的天線必須為號角天線，使用的吸波 材料的尺寸過特別的計算。所述非標準暗室可為標 準的矩形，也可為錐形’發送和接收訊號的天線的型號和 類别無特殊要求，所使㈣吸波材料的尺寸無特殊要求。 =¾ =的錄細試系統及方法巾，必彡貞制鮮測試暗 ，進行測試才i保證訊號接收靈敏度測試的準確性。但 是，標準測試暗室的價格十分昂貴，且對配件的要求非常 高’不便於維護和維修。 【發明内容】 / 鑒，以上内各’有必要提供一種通訊裝置訊號接收靈 敏度測n統及方法，可以在保證測試準確性的情況下， 對放置於非;^準⑻試暗室中的通訊裝置進行訊號接收靈 敏度測試。 201105056 * 一種通訊裝置訊號接收靈敏度測試系統，運行於測試 ' 設備中，所述待測通訊裝置放置於測試暗室中，該系統包 括：設置模組，用於在測試設備中設置測試參數，所述測 試參數包括需發射的訊號的頻率和默認功率、誤比特率指 疋範圍及公共導頻訊號的功率；發送模組，用於控制測試 设備根據所設置的需發射的訊號的頻率和默認功率發射 訊號給待測通訊裝置；計算模組，用於控制測試設備接收 鲁待測通訊裝置返回的訊號，並根據所述測試設備發出的訊 號和待測通訊裝置返回的訊號計算誤比特率；處理模組， 用於當所述誤比特率不在指定範圍之内時，重新設置測試 設備發射訊號的功率直至誤比特率在該指定範圍之内；獲 取模組，用於當所述誤比特率在該指定範圍之内時，獲取 此時待測通訊裝置的接收訊號功率；所述計算模組還用於 根據所獲取的待測通訊裝置的接收訊號功率和所設置的 公共導頻訊號的功率，計算待測通訊裝置訊號接收靈敏 Φ 度。 一種通訊裝置訊號接收靈敏度測試方法，該方法應用 於測試設備中，所述待測通訊裝置放置於測試暗室中，該 方法包括步驟：在測試設備中設置測試參數，所述測試參 數包括需發射的訊號的頻率和默認功率、誤比特率指定範 圍及公共導頻訊號的功率；控制測試設備根據所設置需發 射的訊號的頻率和默認功率的參數發射訊號給待測通訊 裝置；控制測試設備接收待測通訊裝置返回的訊號並根 據所述測試設備發出的訊號和待測通訊裝置所返回的訊 201105056 號計异誤比特率；當所述誤比特率不在指定範圍之内時， 重新設置測試設備發射訊號的功率直至誤比特率在該指 定^圍之内；當所述誤比特率在該指定範圍之内時，獲取 此％待測通訊裝置的接收訊號功率；根據所獲取的待測通 訊裝置，接收訊號功率和所設置的公共導頻訊號的功 率，計异待測通訊裝置訊號接收靈敏度。 …相較於習知技術，所述的軌裝置訊·收靈敏度測 式系、’充及方法，可以在保證測試準確性的情況下，對放置 於非標準測試暗室中的通訊裝置進行訊號接收靈敏度測 減，降低了成本。 【實施方式】201105056 VI. Description of the Invention: [Technical Field] The present invention relates to a stem sensitivity test system and method, and more particularly to a communication device signal receiving sensitivity test system and method. [Prior Art] Signal receiving sensitivity is a basic measure of the performance of a communication device. Therefore, the accuracy of the signal receiving stem sensitivity test is particularly important in all test devices of the communication device. During the signal reception sensitivity test, the communication device to be tested needs to be placed in the test darkroom for testing to maximize the interference of other radio waves. The Laiyi darkroom can be divided into a fresh test darkroom and a non-standard test darkroom. The standard thief darkroom must be a standard rectangular shape, and the antenna for transmitting and receiving signals must be a horn antenna, and the size of the absorbing material used is subject to special calculation. The non-standard darkroom may be of a standard rectangular shape, or may be a tapered type. The type and type of the antenna for transmitting and receiving signals are not particularly required, so that (4) the size of the absorbing material is not particularly required. =3⁄4 = Recording test system and method towel, must be fresh test dark, test to ensure the accuracy of signal receiving sensitivity test. However, the standard test darkroom is very expensive and the requirements for accessories are very high. It is not easy to maintain and repair. [Summary of the Invention] / The above, it is necessary to provide a communication device signal receiving sensitivity measurement method and method, which can be placed in the non-standard (8) test room in the dark room under the condition of ensuring the test accuracy. Perform signal reception sensitivity test. 201105056 * A communication device signal receiving sensitivity test system, running in a test device, the communication device to be tested is placed in a test darkroom, the system comprising: a setting module, configured to set test parameters in the test device, The test parameters include the frequency and default power of the signal to be transmitted, the bit error rate range and the power of the common pilot signal; the transmitting module is used to control the frequency and default power of the test device according to the set signal to be transmitted. Transmitting a signal to the communication device to be tested; the calculation module is configured to control the test device to receive the signal returned by the communication device to be tested, and calculate the bit error rate according to the signal sent by the test device and the signal returned by the communication device to be tested; a module, configured to: when the bit error rate is not within the specified range, resetting the power of the test device to transmit the signal until the bit error rate is within the specified range; and acquiring a module, when the bit error rate is When the specified range is within, the received signal power of the communication device to be tested at this time is obtained; the calculation module is also used for the root Received signal power of the communication device under test acquired common pilot signal and the power set, calculating test communication device signal reception sensitivity Φ degrees. A communication device signal receiving sensitivity testing method is applied to a testing device, wherein the communication device to be tested is placed in a test darkroom, the method comprising the steps of: setting test parameters in the test device, the test parameters including the required to be transmitted The frequency and default power of the signal, the specified range of the bit error rate and the power of the common pilot signal; the control test device transmits a signal to the communication device to be tested according to the frequency of the signal to be transmitted and the parameter of the default power; the control test device receives the signal Detecting the signal returned by the communication device and calculating the error bit rate according to the signal sent by the test device and the signal returned by the communication device to be tested 201105056; when the bit error rate is not within the specified range, resetting the test device to transmit The power of the signal is up to the specified bit rate; when the bit error rate is within the specified range, the received signal power of the % communication device to be tested is obtained; according to the acquired communication device to be tested, Receiving the signal power and the power of the set common pilot signal, and counting the communication to be tested Signal reception sensitivity. Compared with the prior art, the rail device, the sensitivity measuring system, and the charging method can receive signals from the communication device placed in the non-standard test darkroom while ensuring the test accuracy. Sensitivity measurement reduces costs. [Embodiment]
/如圖1所不，係本發明通訊裝置訊號接收靈敏度測試 二:充，佳實施例的系統架構圖，該通訊裝置訊號接收靈敏 式系4 1G運仃於測試設備1中，用於職待測通訊 用的靈敏度。所述職設備還包括通軸訊號線12， 、㈣ϋ及接收無線訊號。所述待測通訊裝置2G放置於 材料，日Ί巾的任思位置’所述測試暗室2内部設有吸波 辦雜、.dr斤°又吸波材料用於遮罩待測通訊裝置2G周圍的訊 ^線㈣所述測試暗至2還包括天線22，用於傳送及接收 狀所述測試暗室2可為標準測試暗室或非標準測 的述通訊裝置2G可以為3G手機或其他任意適用 如圖 系統10 發月通訊裝置訊號接收靈敏度測試 的功能模組圖。张、+，a ^ 所述通訊裝置訊號接收靈敏度測 201105056 .試系統10包括設置模組1〇〇、發送模組101、計算模组 '1〇2、判斷模組103、處理模組104及獲取模組1〇5。本發 明所稱的模組是完成一特定功能的電腦程式段，比程式更 適合於描述軟體在電腦中的執行過程，因此在本發明以下 對軟體描述中都以模組描述。 所述没置模組100用於根據待測通訊裝置2〇所支援的 頻段在測試設備1中設置發射訊號的頻率及通道。在本實 施例中，以3G WCDMA通信系統為例進行說明。所述3G 鲁 WCDMA通信系統可以支援9個不同的頻段，每個頻段包 括一固定的頻率範圍’例如：頻段1支援發射頻率為 1920-1980 MHz的訊號，支援接收頻率為2110-2170 MHz 的訊號。若待測通訊裝置20支援發射頻段為1920-1980 MHz的訊號，接收頻段為2110-2170 MHz的訊號，則在對 待測通訊裝置20進行頻率為2110 MHz的訊號接收靈敏度 測試時，設置模組1〇〇需在測試設備1中設置發射訊號的 φ 頻率為2110 MHz，接受訊號的頻率為1920 MHz。 所述設置模組100還用於在測試設備1中設置路徑損 失值。所述路徑損失值是指訊號從測試暗室的天線22傳 送到待測通訊裝置20所損失的功率值。 所述設置模組1〇〇還用於在測試設備1中設置CPICH (common pilot channel，公共導頻訊號）的功率和默認發 射功率。在本實施例中，所述CPICH的功率值設置為 3.3dB ’所述默認發射功率為_5〇 dB。 所述設置模組1〇〇還用於在測試設備1中設置BER( bit 201105056 error誤比特率）指定範圍並將測試設備1與待測通訊 裝置20建立通訊連接。在本實施例中，所述ber指定範 圍為[0.09% ’ 〇.i%] ’在本發明的其他實施例中，所述BER 指定範圍還可以為其他任意適當的範圍，例如，[0.09%， 〇·11%] ’ [0.08%，〇·〇9%]，[0.08%，0.11%]等。 所述發送模組κη用於控制測試設備1根據所設置的 頻率、通道、路徑損失值及默認發射功率，透過通軸訊號 線12發射一訊號給待測通訊裝置20。若所設置的發射訊 號的頻率為2110 MHz ’通道為9612，默認發射功率為 _50dB’路徑損失值為10dB’則發送模組1〇1透過通道9612 發射出頻率為2110 MHz、功率為-50dB + 10dB =-40dB的 訊號給待測通訊裝置20。所述測試設備1發出的訊號是以 二進位碼的形式進行傳輸，所述待測通訊裝置20接收到 測試設備1發出的訊號後，向測試設備1返回所接收的訊 號。 所述計算模組102用於控制測試設備1透過通軸訊號 線12接收待測通訊裝置20返回的訊號，並根據所述測試 設備1發出的訊號和待測通訊裝置20返回的訊號計算 BER。所述BER=(返回訊號出現差錯的比特數/發送的訊 號總比特數）*100%。在訊號通信中，如果發送的訊號是 “1”，而返回的訊號卻是或者，如果發送的訊號是“0”， 而返回的訊號卻是“1”，這就是“返回訊號中出現差錯的比 特”。例如：若測試設備 1 發出的訊號為 01010101010101010101，待測通訊裝置20返回的所接收 201105056 ， 的訊號為01011111010101010101，進行比對可以得到返回 - 訊號出現差錯的比特數為2，發送的訊號總比特數為2〇， 則本次傳輸的 BER= (2/20) *100%=10%。 所述判斷模組103用於判斷所述BER是否在BER指 定範圍之内，即判斷所述BER是否在[0.09% ’ 〇.ι%]範圍 之内。 所述處理模組104用於當所述BER不在BER指定範 圍之内時’重新設置測試設備1發射訊號的功率。例如： 鲁若測試設備1發射訊號的功率為-50dB時，當所述BER大 於BER指定範圍上限值（例如：〇%)時，處理模組1〇4 將測試設備1發射訊號的功率增加IdB，此時’處理模組 104處理後測試設備1發射訊號的功率為_5〇dB + 1 dB=-49dB ;當BER小於BER指定範圍下限值（例如： 0.09%)時，處理模組1〇4將測試設備1發射訊號的功率 減少IdB ’此時，處理模組1〇4處理後測試設備1發射訊 φ 號的功率為-50dB-ldB=-51dB。 所述獲取模組1〇5用於當所述BER在BER指定範圍 之内時’獲取此時待測通訊裝置2〇的RSCP( received signal code power，接收訊號功率）。所述待測通訊裝置20每接 到一個測試設備發出的訊號，就會向測試設備1返回相對 應的RSCP。 所述計算模組102還用於根據所獲取的RSCP和所設 置的CPICH值’計算待測通訊裝置2〇訊號接收靈敏度。 所述通訊裴置訊號接收靈敏度=RSCP+CPICH。 201105056 所述判斷模組103還用於列斷是否繼續測試待測通訊 裝置20在其他頻率和通道的訊號接收靈敏度。 如圖3所示，係本發明通訊裝置訊號接從靈敏度測試 方法較佳實施例的流程圖。 步驟S10，設置模組100根據待測通訊裝置2〇所支援 的頻在測試設備1中設置發射訊號的頻率及通道。例 如·若待測通訊裝置20支援發射頻段為1920-1980 MHz 的訊號，接收頻段為2110-2170 MHz的訊號，則在對待測 通訊裝置20進行頻率為2110 MHz的訊號接收靈敏度測試 時’設置模組100需在測試設備1中設置發射訊號的頻率 為2110 MHz，接受訊號的頻率為1920 MHz。 步驟S11 ’設置模組1〇〇在測試設備1中設置路徑損 失值。所述路徑損失值是指訊號從測試暗室的天線22傳 送到待測通訊裝置20所損失的功率值。 步驟S12，設置模組100在測試設備1中設置CPICH (common pilot channel，公共 導頻訊號）的功率和默認發 射功率。在本實施例中，所述CPICH的功率值設置為 3.3dB，所述默認發射功率為_5〇 dB。 步驟S13’設置模組ι00在測試設備1中設置BER(bit error ’誤比特率）指定範圍，並將測試設備1與待測通訊 裝置20建立通訊連接。在本實施例中，所述BER指定範 圍為[0.09% ’ 0.1%]，在本發明的其他實施例中，所述BER 指定範圍還可以為其他任意適當的範圍，例如，[0.09%， 0.11%]，[0.08%，0.09%]，[0.08%，0.11%]等。 201105056 - 步驟S14 ’發送模組101控制測試設備1根據所設置 •的頻率、通逼、路徑損失值及默認發射功率’透過通軸訊 號線12發射一訊號給待測通訊裝置2〇。例如：若所設置 的發射訊號的頻率為1920MHz，通道為9612,默認發射 功率為_50dB ’路徑損失值為10dB，則發送模組1〇1透過 通道9612發射出頻率為1920MHz、功率為-50dB +1(MB =-40dB-40dB的訊號給待測通訊裝置2〇。所述測試設備1 鲁發出的訊號是以二進位碼的形式進行傳輸，所述待測通訊 裝置20接收到測試設備1發出的訊號後，向測試設備1 返回所接收的訊號。 步驟S15，計算模組ι〇2控制測試設備1透過通軸訊 號線12接收待測通訊裝置2〇返回的所接收的訊號，並根 據所述測試設備1發出的訊號和待測通訊裝置2〇所接收 的訊號計算BER。所述BER=(返回訊號出現差錯的比特 數/發送的訊號總比特數）*100%。在訊號通信中，如果發 φ 送的訊號是“1”，而返回的訊號卻是“〇，，，或者，如果發送 的訊號是“0” ’而返回的訊號卻是“1”，這就是“返回訊號中 出現差錯的比特”。例如：若測試設備1發出的訊號為 01010101010101010101，待測通訊裝置20返回的所接收 的訊號為01011111010101010101 ’進行比對可以得到返回 訊號出現差錯的比特數為2，發送的訊號總比特數為2〇， 則本次傳輸的 BER= (2/20) *100%=10%。 步驟S16,判斷模組103判斷所述BER是否在Ber ^ 定範圍之内，即判斷所述BER是否在[0.09%，〇1%]範圍 201105056 . 之内。 . 倾S17’當賴賺不在咖減_之内時，處 理模組104重新設置測試設備！發射訊號的功率。例如： 若測試設備1發射訊號的功率為_50dB時，當所述大 於腿指定範圍上限值（例如：01%)時，處理模組104 將測试设備1發射訊號的功率增加ldB，此時，處理模組 104處理後測試設備i發射訊號的功率為 dB=-49dB ;當BER小於BER指定範圍下限值（例如： 0.09%)時，處理模組104將測試設備丄發射訊號的功率 減少ldB，此時，處理模組104處理後測試設備i發射訊 號的功率為-50dB-ldB=-51dB。 步驟S18 ’當所述BER在指定範圍之内時’獲取模組 105獲取此時待測通訊裝置20的RSCP (received signal code power ’接收訊號功率）。所述待測通訊裝置20每接 到一個測試設備1發出的訊號，就會向測試設備1返回相 φ 對應的RSCP。 步驟S19,計算模組1〇2根據所獲取的RSCP和所設置 的CPICH值’計算待測通訊裝置2〇訊號接收靈敏度。所 述通訊裝置訊號接收靈敏度=RSCP+CPICH。 步驟S20，判斷模組1〇3判斷是否繼續測試待測通訊裝 置20在其他頻率和通道的訊號接收靈敏度。若判斷模組 10 3判斷繼續測試待測通訊裝置2 〇在其他頻率和通道的靈 敏度，則返回至步驟S10。 综上所述，本發明符合發明專利要件，爰依法提出專 11 201105056 - 利申請。惟，以上所述者僅為本發明之較佳實施方式，本 ， 發明之範圍並不以上述實施方式為限，舉凡熟悉本案技藝 之人士援依本發明之精神所作之等效修飾或變化，皆應涵 蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1係本發明通訊裝置訊號接收靈敏度測試系統較佳 實施例的硬體架構圖。 圖2係本發明通訊裝置訊號接收靈敏度測試系統的功 *能模組圖。 圖3係本發明通訊裝置訊號接收靈敏度測試方法較佳 實施例的流程圖。 【主要元件符號說明】 測試設備 1 測試暗室 2 通訊裝置訊號接收靈敏度測試系統 10 同轴訊號線 12 通訊裝置 20 天線 22 設置模組 100 發送模組 101 計算模組 102 判斷模組 103 處理模組 104 獲取模組 105 12/ Figure 1 is not shown, is the communication device signal receiving sensitivity test 2 of the present invention: charging, the system architecture diagram of the preferred embodiment, the communication device signal receiving sensitive system 4 1G is operated in the testing device 1 for occupational service Measure the sensitivity of the communication. The service equipment also includes a through-axis signal line 12, (4), and a receiving wireless signal. The communication device 2G to be tested is placed on the material, and the test chamber of the sundial towel is provided with a absorbing wave inside the test darkroom 2, and a absorbing material is used to cover the surrounding communication device 2G. The test wire (4) The test dark to 2 also includes an antenna 22 for transmitting and receiving. The test darkroom 2 can be a standard test darkroom or a non-standard test. The communication device 2G can be a 3G mobile phone or any other suitable. Figure System 10 Functional module diagram of the monthly communication device signal receiving sensitivity test. Zhang, +, a ^ The communication device signal receiving sensitivity test 201105056. The test system 10 includes a setting module 1〇〇, a transmitting module 101, a computing module '1〇2, a determining module 103, a processing module 104, and Get module 1〇5. The module referred to in the present invention is a computer program segment that performs a specific function, and is more suitable for describing the execution process of the software in the computer than the program. Therefore, the following description of the software is described in the module. The module 100 is configured to set a frequency and a channel for transmitting a signal in the test device 1 according to a frequency band supported by the communication device 2 to be tested. In the present embodiment, a 3G WCDMA communication system will be described as an example. The 3G Lu WCDMA communication system can support 9 different frequency bands, each of which includes a fixed frequency range. For example, the frequency band 1 supports a signal with a transmission frequency of 1920-1980 MHz, and supports signals with a reception frequency of 2110-2170 MHz. . If the communication device 20 to be tested supports a signal with a transmission frequency band of 1920-1980 MHz and a signal with a reception frequency band of 2110-2170 MHz, the module 1 is set when the communication receiving device 20 performs a signal reception sensitivity test with a frequency of 2110 MHz. It is not necessary to set the φ frequency of the transmitted signal in the test device 1 to 2110 MHz, and the frequency of receiving the signal is 1920 MHz. The setting module 100 is further configured to set a path loss value in the test device 1. The path loss value refers to the power value lost by the signal transmitted from the antenna 22 of the test dark room to the communication device 20 to be tested. The setting module 1 is further configured to set the power of the CPICH (common pilot channel) and the default transmit power in the test device 1. In this embodiment, the power value of the CPICH is set to 3.3 dB' and the default transmit power is _5 〇 dB. The setting module 1 is further configured to set a BER (bit 201105056 error bit error rate) specified range in the test device 1 and establish a communication connection between the test device 1 and the communication device 20 to be tested. In this embodiment, the ber specified range is [0.09% '〇.i%]. In other embodiments of the present invention, the BER specified range may also be any other suitable range, for example, [0.09% , 〇·11%] ' [0.08%, 〇·〇9%], [0.08%, 0.11%], etc. The transmitting module κη is used to control the test device 1 to transmit a signal to the communication device 20 to be tested through the through-axis signal line 12 according to the set frequency, channel, path loss value and default transmit power. If the set transmit signal frequency is 2110 MHz 'channel is 9612, the default transmit power is _50dB' and the path loss value is 10dB', then the transmit module 1〇1 transmits the frequency through the channel 9612 to 2110 MHz and the power is -50dB. A signal of +10 dB = -40 dB is given to the communication device 20 to be tested. The signal sent by the test device 1 is transmitted in the form of a binary code. After receiving the signal from the test device 1, the communication device 20 to be tested returns the received signal to the test device 1. The computing module 102 is configured to control the test device 1 to receive the signal returned by the communication device 20 to be tested through the through-axis signal line 12, and calculate the BER according to the signal sent by the test device 1 and the signal returned by the communication device 20 to be tested. The BER = (the number of bits in which the return signal is erroneous / the total number of bits of the transmitted signal) * 100%. In signal communication, if the transmitted signal is "1" and the returned signal is or, if the transmitted signal is "0" and the returned signal is "1", this is "there is an error in the return signal. Bit". For example, if the signal sent by the test device 1 is 01010101010101010101, the received signal of the 201105056 returned by the communication device 20 to be tested is 01011111010101010101, and the comparison can be obtained. The number of bits in which the signal has an error is 2, and the total number of bits transmitted is 0. For 2〇, the BER of this transmission is (2/20) *100%=10%. The determining module 103 is configured to determine whether the BER is within a specified range of the BER, that is, whether the BER is within the range of [0.09% 〇.ι%]. The processing module 104 is configured to reset the power of the test device 1 to transmit a signal when the BER is not within the BER specification range. For example, when the power of the test signal of the Luo test device 1 is -50 dB, when the BER is greater than the upper limit value of the BER specified range (for example, 〇%), the processing module 1〇4 increases the power of the test device 1 to transmit signals. IdB, at this time, the power of the test device 1 after the processing module 104 is _5 〇 dB + 1 dB=-49 dB; when the BER is less than the lower limit of the BER specified range (for example: 0.09%), the processing module 1〇4 reduces the power of the test device 1 to transmit the signal IdB'. At this time, after the processing module 1〇4 processes, the power of the test device 1 transmits the signal φ number is -50dB-ldB=-51dB. The obtaining module 〇5 is configured to acquire the RSCP (received signal code power) of the communication device 2 to be tested at the time when the BER is within the BER specified range. Each time the communication device 20 to be tested receives a signal from a test device, it returns a corresponding RSCP to the test device 1. The computing module 102 is further configured to calculate the signal receiving sensitivity of the communication device to be tested according to the acquired RSCP and the set CPICH value. The communication device signal receiving sensitivity=RSCP+CPICH. The determining module 103 is further used to determine whether to continue testing the signal receiving sensitivity of the communication device 20 under test at other frequencies and channels. As shown in FIG. 3, it is a flow chart of a preferred embodiment of the signal sensing method for the communication device of the present invention. In step S10, the setting module 100 sets the frequency and channel of the transmitting signal in the testing device 1 according to the frequency supported by the communication device 2 to be tested. For example, if the communication device 20 to be tested supports a signal with a transmission band of 1920-1980 MHz and a signal with a reception band of 2110-2170 MHz, the mode is set when the signal communication device 20 is tested for a signal receiving sensitivity of 2110 MHz. The group 100 needs to set the transmission signal frequency of 2110 MHz in the test device 1, and the frequency of receiving the signal is 1920 MHz. The step S11' setting module 1 sets a path loss value in the test device 1. The path loss value refers to the power value lost by the signal transmitted from the antenna 22 of the test dark room to the communication device 20 to be tested. In step S12, the setting module 100 sets the power of the CPICH (common pilot channel) and the default transmit power in the test device 1. In this embodiment, the power value of the CPICH is set to 3.3 dB, and the default transmit power is _5 〇 dB. The step S13' sets the module ι00 to set a BER (bit error 'bit error rate) specified range in the test device 1, and establishes a communication connection between the test device 1 and the communication device 20 to be tested. In this embodiment, the BER specification range is [0.09% '0.1%]. In other embodiments of the present invention, the BER specification range may also be any other suitable range, for example, [0.09%, 0.11 %], [0.08%, 0.09%], [0.08%, 0.11%], and the like. 201105056 - Step S14 ' The transmitting module 101 controls the test device 1 to transmit a signal to the communication device under test 2 via the through-axis signal line 12 according to the set frequency, the push, the path loss value and the default transmit power. For example, if the frequency of the transmitted signal is 1920MHz, the channel is 9612, and the default transmit power is _50dB. The path loss value is 10dB. The transmit module 1〇1 transmits the frequency to the channel 9612 and the power is 1920MHz. +1 (MB = -40 dB - 40 dB signal to the communication device to be tested 2 〇. The signal sent by the test device 1 is transmitted in the form of a binary code, and the communication device 20 to be tested receives the test device 1 After the signal is sent, the received signal is returned to the test device 1. In step S15, the calculation module ι2 controls the test device 1 to receive the received signal returned by the communication device 2 to be tested through the through-axis signal line 12, and according to The signal sent by the test device 1 and the signal received by the communication device 2 to be tested calculate the BER. The BER=(the number of bits in which the return signal is in error/the total number of bits transmitted)*100%. In the signal communication If the signal sent by φ is "1", and the returned signal is "〇,,, or, if the transmitted signal is "0"" and the returned signal is "1", this is the "return signal". The ratio of errors For example, if the signal sent by the test device 1 is 01010101010101010101, the received signal returned by the communication device 20 to be tested is 01011111010101010101', and the number of bits in which the return signal is erroneous is 2, and the total number of transmitted signals is 2〇, the BER of the current transmission is (2/20) *100%=10%. In step S16, the determining module 103 determines whether the BER is within the range of Ber ^, that is, whether the BER is in the [ 0.09%, 〇1%] is within the range of 201105056.. When the S17' is not within the _, the processing module 104 resets the test device! The power of the transmitted signal. For example: If the test device 1 transmits a signal When the power is _50dB, when the value is greater than the upper limit of the specified range of the leg (for example, 01%), the processing module 104 increases the power of the test device 1 to transmit the signal ldB, and at this time, the processing module 104 processes After the test device i transmits the signal, the power is dB=-49dB; when the BER is less than the BER specified range lower limit (for example, 0.09%), the processing module 104 reduces the power of the test device 丄 transmit signal by ldB, at this time, processing Module 104 processes the test equipment i The power of the transmitted signal is -50dB-ldB=-51dB. Step S18 'When the BER is within the specified range, the acquisition module 105 obtains the RSCP (received signal code power) of the communication device 20 to be tested at this time. Each time the communication device 20 to be tested receives a signal from the test device 1, it returns the RSCP corresponding to the phase φ to the test device 1. In step S19, the computing module 1〇2 calculates the signal receiving sensitivity of the communication device to be tested according to the acquired RSCP and the set CPICH value. The communication device signal receiving sensitivity = RSCP + CPICH. In step S20, the determining module 1〇3 determines whether to continue testing the signal receiving sensitivity of the communication device 20 to be tested at other frequencies and channels. If the judging module 103 judges to continue testing the sensitivity of the communication device 2 to be tested at other frequencies and channels, it returns to step S10. In summary, the present invention complies with the requirements of the invention patent, and the application for the patent 11 201105056-. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or variations in accordance with the spirit of the present invention. All should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a hardware structural diagram of a preferred embodiment of a signal receiving sensitivity test system for a communication device of the present invention. 2 is a diagram showing the power module of the signal receiving sensitivity test system of the communication device of the present invention. Fig. 3 is a flow chart showing a preferred embodiment of the method for testing the signal receiving sensitivity of the communication device of the present invention. [Main component symbol description] Test equipment 1 Test darkroom 2 Communication device signal receiving sensitivity test system 10 Coaxial signal line 12 Communication device 20 Antenna 22 Setting module 100 Transmitting module 101 Calculation module 102 Judging module 103 Processing module 104 Acquisition module 105 12