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- directional division duplex 方向分割双工
- 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。
- We also found thrombocyte's direct division, which means it can be formed in the peripheral blood. 电镜研究结果表明，牙鲆红细胞的细胞质均匀，有少量线粒体和囊泡以及大量的极细颗粒；
- 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。
- 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。
- STDD Shared Time Division Duplex 共享时分双工
- PSTDD Partially Shared Time Division Duplex 部分共享时分双工
- One was based on time division duplex (TDD) mode; 一种是基于时分双工(TDD)模式下最大信道增益而设计的;
- 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。
- 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。
- 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）。
- She cast her eyes down to avoid direct eye contact. 她垂下双目以避免对视。
- I'll book you on a direct flight to London. 我将为你预订直飞伦敦的航班。
- A packet reservation multiple access protocol in time division duplex 一种适合时分双工环境的分组预约多址协议
- He has chosen the most direct route. 他选取了最直的路线。
- 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。
- She's very direct, believes in speaking her mind. 她为人直率，喜欢有什么说什么。
