| cdma2000 1x EV-DO下行无线链路预算 |
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| 引用本文： | 凌灵,解辉,傅海阳.cdma2000 1x EV-DO下行无线链路预算[J].电信工程技术与标准化,2006,19(1):38-42. |
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| 作者姓名： | 凌灵 解辉 傅海阳 |
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| 作者单位： | 南京邮电大学通信工程系,南京,210003;南京邮电大学通信工程系,南京,210003;南京邮电大学通信工程系,南京,210003 |
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| 摘 要： | 1x EV-DO是cdma2000 1x系统的演进,在cdma2000 1x的基础上能够提供高速移动数据传输业务.本文简要介绍了1x EV-DO的技术特点和前向链路的时隙结构,并对前向链路在不同传输速率条件下所能达到的覆盖范围进行了估算,结合估算结果对1x EV-DO系统进行实例分析,分析结果说明1x EV-DO系统很难提供3G标准所规定的静止环境2048kbit/s的无线接入速率,只有当用户数有限且传输信道质量优良的条件下,才有可能提供大约600kbit/s的最高无线接入速率.
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| 关 键 词： | cdma2000 1xEV-DO 覆盖半径 链路预算 |
Radio Downlink Budget for cdma2000 1x EV-DO |
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| Ling Ling,Xie Hui,Fu Haiyang.Radio Downlink Budget for cdma2000 1x EV-DO[J].Telecom Engineering Technics and Standardization,2006,19(1):38-42. |
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| Authors: | Ling Ling Xie Hui Fu Haiyang |
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| Abstract: | 1x EV-DO, known as the evolution of cdma2000 system, can provide high speed mobile data service based on cdma2000. This paper briefly introduces the technical characteristic and forward link slot structure of I x EV-DO and calculates the forward link coverage depending on various transmission conditions. Combined with the calculation, 1x EV-DO can be analyzed by examples. The result shows that l x EV-DO system is difficult to provide the wireless access data rate of 2048kbit/s in radio environment of indoor office, and it is possible to provide the most wireless access data rate of about 600kbit/s when the cell capacity is limited and the channel condition is ideal. |
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| Keywords: | cdma2000 1xEV-DO |
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