WCDMA上行调制方案演进与发射机实现

Gateway to 21st Century Communications Village. VTC 1999-Fall. IEEE VTS 50th Vehicular Technology Conference (Cat. No.99CH36324) Pub Date : 1999-09-19 DOI:10.1109/VETECF.1999.798460

H. Lilja, H. Mattila

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引用次数: 3

摘要

介绍了一种WCDMA上行调制方案的发展。通过比较各种调制方案的射频包络，从功率放大器实现的角度对调制方案进行了分析。利用实测的AB类功率放大器，比较了不同调制方案对功率放大器线性度的要求。WCDMA面临的挑战之一是实现支持语音和高速数据的WCDMA终端的发射机。本文提出了一种优化WCDMA终端在两种模式下的电流消耗的发射机结构。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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WCDMA uplink modulation scheme evolution and transmitter implementation

The evolution of a WCDMA uplink modulation scheme is presented. Modulation schemes are analyzed from the power amplifier implementation point of view by comparing the RF envelopes of various modulation schemes. The power amplifier linearity requirements of different modulation schemes are compared using a measured class AB power amplifier. One of the challenges in WCDMA is the implementation of the transmitter for a WCDMA terminal supporting both speech and high-speed data. This paper proposes a transmitter architecture for optimizing the current consumption of the WCDMA terminal in both modes.

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来源期刊

Gateway to 21st Century Communications Village. VTC 1999-Fall. IEEE VTS 50th Vehicular Technology Conference (Cat. No.99CH36324)

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