| 摘要: |
| 分析了3G数字直放站的功能结构,并重点分析了工业界提出的基站与直放站接口规范,最后结合OBSAI规范的要求介绍了数字直放站的设计方案.本方案的射频和中频部分采用专用芯片,接口规范的实现采用FPGA,这样能用相同的硬件兼顾多种接口标准.与模拟直放站相比,该方案具有高性能、低成本的优点,适合3G网络的广泛覆盖建设. |
| 关键词: 3G网络 直放站 OBSAI规范 软件无线电 数字上变频 数字下变频 |
| DOI：10.3969/j.issn.1001-893X. |
| Received:June 30, 2006Revised:October 30, 2006 |
| 基金项目: |
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| Design of 3G Repeater Based on OBSAI Standard |
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| Abstract: |
| The functional structure of the third generation(3G) digital repeater is analyzed.Much attention is focused on the interface specification between base station and repeater proposed by industrial companies. Finally, the design scheme based on OBSAI standard is shown. In this scheme, RF and intermediate frequency(IF) parts are on ASIC chips, but interface specification is realized in FPGA to adapt to many specifications on the same hardware .Compared with analog repeater scheme, this scheme has merits of high performance and low cost. It's very suitable for mass coverage of 3G network. |
| Key words: 3G network,repeater,OBSAI standard,software defined radio (SDR),DDC,DUC |
