【資料名稱】：時鐘透傳技術(shù)白皮書

【資料作者】：華為

【資料日期】：2010

【資料語言】：中文

【資料格式】：PDF

【資料目錄和簡介】：

1 前言............................................................................................................................1
1.1 背景.........................................................................................................................1
1.2 同步的概念..............................................................................................................1
1.3 通訊網(wǎng)絡(luò)對同步的需求............................................................................................3
1.3.1 傳統(tǒng)固網(wǎng)TDM業(yè)務對時鐘同步的需求..................................................3
1.3.2 無線IP RAN對同步的需求...................................................................3
1.3.3 專用時鐘同步網(wǎng)（BITS）的需求...........................................................4
2 基于以太網(wǎng)的時鐘透傳技術(shù)........................................................................................4
2.1 同步以太網(wǎng)技術(shù).......................................................................................................4
2.1.1 基本介紹...............................................................................................4
2.1.2 相關(guān)標準和產(chǎn)品....................................................................................5
2.1.3 技術(shù)實現(xiàn)...............................................................................................5
2.1.4 測試結(jié)果...............................................................................................6
2.1.5 性能和部署局限....................................................................................6
2.2 電路仿真包恢復時鐘技術(shù)........................................................................................7
2.2.1 基本介紹...............................................................................................7
2.2.2 相關(guān)標準...............................................................................................7
2.2.3 自適應時鐘恢復算法原理......................................................................8
2.2.4 性能測試結(jié)果........................................................................................9
2.3 TOP方式恢復時鐘................................................................................................10
2.3.1 基本介紹.............................................................................................10
2.3.2 實現(xiàn)原理.............................................................................................11
2.3.3 性能....................................................................................................11
2.4 幾種時鐘恢復方式的精度對比...............................................................................11
3 典型應用..................................................................................................................13
3.1 同步以太網(wǎng)時鐘透傳方案......................................................................................13
3.2 TDM電路仿真時鐘透傳方案.................................................................................14
3.3 TOP時鐘方案.......................................................................................................15
3.4 混合組網(wǎng)方案........................................................................................................16