| 摘要: |
| 在简单介绍固定宽带无线接入系统之后 ,给出了一个 3.5GHz固定宽带无线接入系统中的MAC实现方案 ,着重研究了话音业务如何动态地接入骨干网 ;最后给出了话音业务通过E1接口接入PSTN的实现框图。本系统工作在 3.5GHz频段 ,采用FDD的双工技术、TDM/TDMA的复用多址技术、MAC技术实现了数据 /话音混合传送 ,并且通过动态资源分配保证了带宽的有效利用。 |
| 关键词: 固定宽带无线接入系统,MAC,动态资源分配,话音业务 |
| DOI：10.3969/j.issn.1001-893X. |
| Revised:October 13, 2002 |
| 基金项目: |
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| Dynamic Access Technology of Voice in Fixed BWA Systems |
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| Abstract: |
| The fixed BWA systems is overviewed. Then a MAC implementation in a 3.5GHz BWA system is introduced, with focuse on the dynamic access technology of voice.Finally a block diagram which describes how the voice accesses PSTN through E1 interface is given.The MAC in the system supports for integrated voice/data transport and dynamic bandwidth allocation. FDD/TDM/TDMA mode is applied in the system. |
| Key words: Broadband wireless access system,MAC,Dynamic bandwidth allocation,Voice Service, |
