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- From Release 1.2 onwards MU886 will also be able to operate in Frequency Division Duplexing (FDD) mode. 从版本1.;2起，MU886还能按分频双工（FDD）的模式运行。
- UMTS assigns separate carrier frequencies to incoming and outbound signals, a process called frequency division duplexing (FDD). UMTS分配给营运商不同的频率，用于输入和输出信号，这个过程叫频分双工（FDD）。
- TDD systems in the discussion at the same time to consider FDD (frequency division duplex) system, TDD / FDD in the dual-mode, LTE has provided technical norms and standards of commonality. 直流电源系统主要南充电装置(变流器或整流器)、蓄电池、直流馈电三大部分组成。
- Frequency division duplexing 频分双工
- frequency division duplex 频分双工
- The MU886 system uses Time Division Duplexing (TDD) technique to transmit and receive on the same channel. MU886系统使用分时双工（TDD）技术，可在同一个信道内发送及接收信号。
- And on the basis of that, this paper introduces the TDD (Time Division Duplex), discusses the frame structure of the TDD protocol, and gives the way of realizing TDD. 并在此基础上,介绍了TDD(Time Division Duplex)时分双工技术,讨论了TDD协议的帧结构,并给出了时分双工通信的实现方法。
- As a duplexmode for the separation of the two Transmission directions, either the FrequencyDivision Duplex mode (FDD) or the Time Division Duplex mode (TDD) can be applied. 频分多址FDD模式,或者时分多址TDD模式都可以满足应用。
- Time Division Duplex (TDD) is a kind of duplex method of communication system, by which uplink and downlink transmissions are time separated in mobile communications. 时分双工 (TDD)是一种通信系统的双工方式 ,在移动通信系统中用于分离接收和传送信道。
- Use of one channel for several messages by timedivision multiplex or frequency division. 通过时分或频分多路复用的方法,用单个信道传输多个报文。
- Some basic standards are introduced first.Then the use of single-carrier QAM and multi-carrier DMT are contrasted.Frequency division duplexing (FDD) and residential gateway are also discussed. 首先介绍了VDSL的一些基本规范，然后就VDSL的关键技术，如QAM和DMT调制技术、频分复用、以及用户区网关等作了描述。
- The advantages, principles and application methods of its frequency division and M/T measurement of speed are provided. 车用油耗器设计中测量电路的设计是关键技术,重点介绍了分频技术和M/T测速技术的优点、原理和在设计中的应用方法。
- The orthogonal frequency division multiplexing (OFDM) is outlined and the error rate is analysed. 著重分析了正交多载波调制(OFDM)技术的原理及在电力线信道下的误码性能。
- Orthogonal frequency division multiplexing (OFDM) is a multi-carrier modulation method. 正交频分多路复用是一种多载波调制技术。
- On the base of wireless voice communication system which used TDD technology, constituted a time division duplex communication protocol in this paper. And was implement the communication protocol by the program. 本文在基于以TDD技术为基础的无线语音通信系统中,制定了时分双工通讯协议,并通过编程实现了无线语音双工通信。
- This paper shows that the capacity of WCDMA system can be enlarged further, by combining UTRA(Universal Terrestrial Radio Access) TDD (Time Division Duplex) Mode with time?switching array antennas. 主要证明将UTRATDD(通用陆基无线时分双工)模式与时间切换阵列天线技术相结合,可进一步增大WCDMA系统容量。
- ADSL transmission equipment vendors use either frequency division multiplexing or echo cancellation to achieve this huge gain in throughput. ADSL传输设备供应商不是利用频分多路复用，就是利用回波消除，以获得吞吐量有大幅度的提高。
- The design method of a kind of wideband HF date modem based on orthogonal frequency division multiplexing (OFDM) is introduced. 介绍了一种基于正交频分复用(orthogonal frequency division multiplexing,OFDM)技术的宽带短波数据调制解调器的设计方案。
- DRM has become to a international standard of AM broadcast. It modulate by COFDM(Coded Orthogonal Frequency Division Multiplex) technology. DRM数字调幅广播已经成为国际标准，它使用COFDM(Coded Orthogonal Frequency Division Multiplex)调制技术。
- Orthogonal Frequency Division Multiple Access (OFDMA) gains an increasing attention for broadband wireless access (BWA) system. OFDMA在BWA系统中得到越来越多的应用。
