PRACH在WCDMA系统中的快速采集方案及实现

IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211) Pub Date : 2001-10-07 DOI:10.1109/VTC.2001.956490

Ling Qiu, Yongjia Huang, Jinkang Zhu

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引用次数: 3

摘要

研究了WCDMA系统中物理随机接入信道(PRACH)采集的性能及其实现。分析表明，传统的方法不能令人满意。在此基础上，提出了基于快速Hadamard变换的PRACH前导的准匹配滤波采集方案。在实际的WCDMA现场试验系统中，通过硬件实现了该方法。仿真和测试结果表明，该方案实现了E/sub / b//N/sub 0/ =7 dB时的检测概率不小于95%，平均采集时间小于1.33 ms。

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Fast acquisition scheme and implementation of PRACH in WCDMA system

The performance and implementation of PRACH (physical random access channel) acquisition in WCDMA system is investigated. The analysis shows that the conventional methods are not satisfying. Thus we proposed the quasi-matched filter acquisition scheme of PRACH preamble which based on fast Hadamard transform. We implement this method by hardware in the practical WCDMA field trial system. The simulation and test results show that the proposed scheme achieves the following performance: the detection probability with E/sub b//N/sub 0/ =7 dB is not less than 95%, and the mean acquisition time is less than 1.33 ms.

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IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211)

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