【正文】 符TrTransparent透明的TxTransmission傳輸發(fā)送UEUser Equipment用戶設(shè)備ULUplink上行鏈路UMUnacknowledged Mode非確認(rèn)模式UMTSUniversal Mobile Telemunications System全球移動(dòng)通信系統(tǒng)UNACKUnacknowledgement非確認(rèn)URNTIUTRANRNTIUTRAN無(wú)線網(wǎng)絡(luò)臨時(shí)標(biāo)識(shí)符USCHUplink Shared Channel上行共享信道UTRANUMTS Terrestrial Radio Access NetworkUMTS陸地?zé)o線接入網(wǎng)Itf_b接口到協(xié)議網(wǎng)關(guān)NEMADC （A/D）Analog to Digital Converter模數(shù)轉(zhuǎn)換器AGCAutomatic Gain Control自動(dòng)增益控制ATMAsynchronous transfer mode異步傳輸模式BCPBaseband Control Processor基帶控制處理器BISTBuilt in self testBPFBand Pass Filter帶通濾波器CCUCentral Control Unit中央控制單元CDMACode Division Multiple Access碼分多址CPMCommunications Processor Module通信處理模塊CPUCentral Processing Unit中央處理單元CICCfadedintegratorb (filter)CNCore Network核心網(wǎng)DCDirect Current直流DCLKDigital Clock數(shù)字時(shí)鐘DMBDigital Main Board數(shù)字主板DwPTSDownlink Pilot Slot下行導(dǎo)頻時(shí)隙E1PBE1 Protection BoardE1保護(hù)板E2PROM（EEPROM）Electrically erasable PROM電可擦除的PROMEMCElectromagnetic Compatibility電磁兼容EMIElectromagnetic Interference電磁干擾EMIFExternal Memory Interface外部存儲(chǔ)器接口EMIFAEMIF AEMIFBEMIF BEPROMErasable PROM可擦除的PROMFCCFast Communications Controller快速通信控制器FETHFast Ethernet快速以太網(wǎng)FIFOFirst In First Out (Menory)先入先出（存儲(chǔ)器）FIRFinite Impulse Response (Filter)有限沖擊響應(yīng)（濾波器）FPFrame Protocol幀協(xié)議GPGuard Period保護(hù)時(shí)隙GPCMGeneralpurpose chipselect machine通用片選機(jī)器GPIOGeneral Purpose Input Output通用輸入輸出GPSGlobal Positioning System全球定位系統(tǒng)GTSGeneral Test System通用測(cè)試系統(tǒng)HPIHost Port Interface主機(jī)接口HWHardware硬件HRCWHardware Reset Configuration Word硬件復(fù)位配置字I2C（I2C）Interintegrated circuit一種兩線的接口標(biāo)準(zhǔn)ICLInterface and Control Logic接口和控制邏輯IF(1)Intermediate Frequency中頻IF(2)Interface接口IMAInverse Multiplexing for ATMATM反向復(fù)用IubInterface between Node B and RNCNode B和RNC之間的接口IubFPFrame Protocol on Iub interfaceJTAGJoint Test Action GroupLCLKLocal Clock本地時(shí)鐘LDOLowDropout RegulatorLEDLightEmitting Diode發(fā)光二級(jí)管LMTLocal Maintenance Terminal本地維護(hù)終端LMTBLMT for Node BNode B的本地維護(hù)終端LNALow Noise Amplifier低噪放（低噪聲放大器）LOLocal Oscillator本振LPFLoop Filter環(huán)路濾波器LSBMMUMemory management unit存儲(chǔ)器管理單元MSBMost Significant BitMIFMicroprocessor Interface微處理器接口MIIMedia Independent Interface媒體獨(dú)立接口MTBFMean Time Between Failure平均故障間隔時(shí)間Oamp。VE Audio / Video Editor 音頻/視頻編輯器 AA AnalogAnalog 模模 AD AnalogDigital 模數(shù) A/D Analog / Digital 模擬/數(shù)字 A/V Audio / Video 音頻/視頻 A/VP Audio / Video Panel 音頻視頻面板 AA Absolute Address 絕對(duì)地址 AA Access Agent 訪問(wèn)代理 AA Arrival Angl 入射角 AA Automatic Alarm call 自動(dòng)報(bào)警呼叫 AA Automatic Answer 自動(dòng)應(yīng)答 AA/G Application Agent / Gateway 應(yīng)用代理/網(wǎng)關(guān) AAA Authentication, Authorization and Accounting 驗(yàn)證、授權(quán)和帳戶 AAB Automatic Alternative Billing 自動(dòng)更換記帳 AAB Automatic Answer Back 自動(dòng)應(yīng)答 AAC Active Address Code 有效地址碼 AAC Aeronautical Administrative Communication 航空管理通信 AAC Automatic Alarm Call 自動(dòng)報(bào)警呼叫 AACS Asynchronous Address Communication System 異步地址通信系統(tǒng) AAD Adaptive Arithmetic Decoder 自適應(yīng)算術(shù)碼譯碼器 AAE Adaptive Arithmetic Encoder 自適應(yīng)算術(shù)碼編碼器 AAF Access Adaption Function 存取自適應(yīng)功能 AAF Analog Antialiasing Filter 模擬防混淆濾波器 AAIC Accounting Authority Identification Code 結(jié)算機(jī)構(gòu)識(shí)別碼 AAL ATM Adaptation Layer ATM適配層 AAL1 ATM Adaptation Layer 1 ATM適配層1 AAL2 ATM Adaptation Layer 2 ATM適配層2 AAL3/4 ATM Adaptation Layer 3/4 ATM適配層3/4 AAL5 ATM Adaptation Layer 5 ATM適配層5 AALM ATM Adaptation Layer Module ATM適配層模塊 AAR Automatic Alternative Routing 自動(dòng)迂回路由 AARE Application Association REsponse 應(yīng)用聯(lián)合響應(yīng) AARQ Application Association ReQuest 應(yīng)用聯(lián)合請(qǐng)求 AAS Advanced Administration System 先進(jìn)管理系統(tǒng) AAS Automatic Addressing System 自動(dòng)尋址系統(tǒng) AAS Automatic Announcement Subsystem 自動(dòng)通知子系統(tǒng) AAS Automatic Audio Switching system 自動(dòng)音頻交換系統(tǒng) AAT Automatic Answer Trunk 自動(dòng)應(yīng)答中繼 AATS Alerting Automatic Telling Status 自動(dòng)報(bào)警狀態(tài) AAU Automatic Answering Unit 自動(dòng)應(yīng)答單元 AAVD Automatic Alternate Voice / Data 自動(dòng)語(yǔ)音/數(shù)據(jù)交替使用 AB ABbreviated dialing 縮位撥號(hào) AB Address Bus 地址總線 AB Aligned Bundle 定位光纖束 AB Audio Bandwidth 音頻帶寬 ABC Address Bus Control 地址總線控制 ABC Advanced Broadband Communications 高級(jí)寬帶通信 ABC Analog Baseband Combiner 模擬基帶合并器 ABC Auto Billing Calling 自動(dòng)記帳呼叫 ABC Automatic Bandwidth Control 自動(dòng)帶寬控制 ABC Automatic Bias Compensation 自動(dòng)偏置補(bǔ)償 ABC Automatic Bias Control 自動(dòng)偏置控制 ABC Automatic Broadcasting Control system 自動(dòng)廣播控制系統(tǒng) ABD ABbreviated Dialing 縮位撥號(hào) ABD AnswerBack Device 應(yīng)答設(shè)備 ABDL Automatic Binary Data Link 自動(dòng)二進(jìn)制數(shù)據(jù)鏈路 ABEP Advanced Burst Error Processor 高級(jí)突發(fā)錯(cuò)誤處理器 ABER Average Bit Error Rate 平均誤比特率 ABF Air Blown Fiber 充氣光纖 ABI Application Binary Interface 應(yīng)用二進(jìn)制接口 ABM Asynchronous Balanced Mode 異步平衡模式 ABOBA Asynchronous Bidirectional Optical Branching Amplifier 不對(duì)稱雙向光支路放大器 ABR Address Buffer Register 地址緩沖寄存器 ABR Answer Bid Ratio 應(yīng)答試占比 ABR Area Border Router 區(qū)域邊界路由器 ABR Auromatic Bit Rate selection 自動(dòng)比特率選擇 ABR Available Bit Rate 可用比特率 ABS Access Barred Signal 接入受阻信號(hào) ABS Alternate Billing Service 可選計(jì)費(fèi)業(yè)務(wù) ABS Antipodal Baseband Signaling 對(duì)應(yīng)基帶信號(hào) ABT ATM Block Transfer ATM塊轉(zhuǎn)移 AC Access Code 存取碼，接入碼 AC Access Concentrator 接入集中器 AC Access Control 訪問(wèn)控制 AC Access Coupler 通路耦合器 AC Access Cycle 存取周期 AC Accounting Function 計(jì)費(fèi)功能 AC Advice of Charge 計(jì)費(fèi)通知 AC Application Channel 應(yīng)用信道 AC Application Context 應(yīng)用關(guān)系 AC Area Code 地區(qū)號(hào) AC Armored Cable 鎧裝光纜 AC Asynchronous Computer 異步計(jì)算機(jī) AC Authentication Center 認(rèn)證中心 AC Authentication Code 認(rèn)證碼 ACA ACcounting Analysis 結(jié)算分析 ACA Adaptive Channel Allocation 自適應(yīng)信道分配 ACA Adjacent Channel Attenuation 相鄰信道衰減 ACA Automated Cable Analysis 電纜自動(dòng)分析 ACB Automatic Call Back 自動(dòng)回叫 ACC Account Card Calling 計(jì)帳卡呼叫 ACC ACCounting collection 帳單收集 ACC Asynchronous Communication Control 異步通信控制 ACC Automatic Carrier Control 載波自動(dòng)