| 摘要: |
| 针对WCDMAFDD下行链路,提出了一种接收机结构。与传统接收机不同,该结构是根据多径来拉动(延时)输入信号,即根据多径把各径的信号延时对齐,而本地码的相位只需一个,来对多径支路解扩,并直接合并输出。该结构可进一步通过串行方法实现,大大减少硬件资源。由于采用全硬件技术,因此,便于ASIC集成。 |
| 关键词: WCDMA,RAKE接收机结构,多径延时,ASIC |
| DOI：10.3969/j.issn.1001-893X. |
| Revised:August 12, 2003 |
| 基金项目: |
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| A RAKE Receiver Architecture and Implementation for WCDMA Mobile Terminals |
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| Abstract: |
| A novel RAKE receiver architecture is presented, and its implementations for WCDMA FDD downlink reception are discussed.In contrast to conventional RAKE receivers, this structure delays the input signals by multipaths. Namely, the signal delays are uniformed by multi paths.So one can use just only one of the local code phase to despread multipath signals, and combines the despreaded results directly. The structure can be achieved by serial methods to reduce the hardware demand. It is convenient to integrate the RAKE receiver on ASIC. |
| Key words: WCDMA,RAKE receiver structure,Multipath delay,ASIC |
