pdsn 中文意思是什麼

pdsn 解釋
分組數據服務節點
  1. The cmt system is made up of eight sub - systems : was, cs, lr, pdsn, omc, wau, cmg and csg. if different hardware platforms were used, the complexity of the whole system will increase greatly, so does the maintenance difficulty

    Cmt系統由was 、 cs 、 lr 、 pdsn 、 omc 、 wau 、 cmg和csg子系統構成，各硬體子系統單板若採用不同的硬體平臺將使系統硬體的復雜度提高、且增加維護的難度。
  2. In pdsn system, data packet between ms and pdsn compressed by compressing algorithm can reduce the size of the transmitting packet, improve the efficiency of data transmission and support large number of simultaneous connected users

    在pdsn （ packetdataservicenode :分組數據服務節點）系統中，用壓縮演算法對移動用戶與pdsn之間傳輸的數據報文內容進行壓縮，可大大減小傳輸報文的大小，提高數據傳輸速率，支持更大用戶的同時接入。
  3. This paper makes use of mppc algorithm to compress transmitting data in pdsn system and implements the function methioned above. first, this auther focuses on the expatiation of the working principle and system structure of pdsn and analyzing the dada transmission between ms and pdsn

    本文採用mppc （ microsoftpointtopointcompress :微軟點對點壓縮）壓縮演算法對pdsn系統中傳輸的數據報文進行壓縮，並設計實現了該壓縮功能。
  4. This paper is made in the background of the development of pdsn ( packed data service node ), the core component of cdma2000 system. and we discussed the current and future situation of cdma2000 communication system and embedded systems. also, we utilized the linux platform to apply the testing platform of the accessing into pdsn

    本論文以開發第三代移動通信系統cdma2000中的核心設備pdsn （分組數據服務節點）為背景，討論了cdma2000通信系統以及嵌入式操作系統的現狀及發展趨勢，利用linux平臺實現了pdsn系統的接入測試平臺，不僅完成了對pdsn系統的測試目標，而且有力的嘗試了利用linux開發企業級別的通訊設備嵌入式系統。
  5. And it describes the position of the testing platform hi cdma2000 network in third chapter. in the forth chapter it details the interface between the testing platform and pdsn system and how to implement the access - testing platform under linux. last section figures out a conclusion

    第三章介紹了接入測試平臺在整個cdma2000網路中的位置，第四章介紹了接入測試平臺和pdsn之間的介面，然後具體描述了如何利用linux平臺實現接入測試平臺的主要功能，以及實現難點和相關的一些技術細節。
  6. With a combination of the design principles and characteristics of pdsn, a method for compressing data packet using mppc compressing algorithm is put forward. after studying ppp protocol and mppc compressing standards, an algorithm using packet matching sliding window buffer to code and decode is provided. considering not making a great change of current pdsn system, a mppc compressing module is designed and the function to compress data packet through vxworks platform is implemented

    作者首先闡述了pdsn系統的工作原理和系統結構，對移動用戶與pdsn之間的數據傳輸進行了分析，並結合pdsn系統的設計原理和特點採用mppc壓縮演算法對數據報文內容進行壓縮;然後闡述了ppp （ pointtopointprotocol :點對點協議）協議和mppc壓縮標準，採用報文匹配的滑動窗口機制進行編碼和解碼;接著考慮在不對現有pdsn系統進行大改動的基礎上，設計了mppc壓縮模塊，並基於vxworks系統平臺實現了對數據報文內容壓縮的功能;最後對壓縮功能進行了測試並給出測試數據。
  7. Having made a synthetic consideration of systematic architecture character, we decide to design a common hardware platform in order to decrease the hardware complexity and improve the system stability. the platform can be used in some different sub - systems ( such as was, cs, lr, pdsn, omc, etc. ) with their own software running on it

    為降低系統硬體復雜度、提高系統可靠性，並綜合考慮系統基於ip的結構特點，將部分硬體子系統單板設計為一個通用的硬體處理平臺，該平臺可以應用到was 、 cs 、 lr 、 pdsn和omc子系統。
  8. Currently, it ' s more and more popular to use linux as an embedded system in developing communication devices. but for some reasons in history, some traditional embedded systems, such as vxworks, psos, are still playing a main role in some large enterprise communication equipments. for an instance, the pdsn is also developed in the vxworks embedded system

    但是由於歷史的原因，在一些大型的企業級別的通訊設備的嵌入式操作系統的開發中，主要還是採用比較成熟的一些嵌入式操作系統，比如vxworks ， psos等等，在本文中提到pdsn設備也是採用的vxworks嵌入式操作系統來開發的，但是linux也越來越顯示出它的優勢。
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