增强WCDMA系统的快速功率控制

11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525) Pub Date : 2000-09-18 DOI:10.1109/PIMRC.2000.881655

I. Virtej, Matti Rintamäki, H. Koivo

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引用次数: 10

摘要

移动电话的不断增加，形成了新的通信系统和新技术的出现。在现实生活中，无线电信号受到瑞利衰落(快速衰落)和干扰。这些导致了信号强度的巨大变化。需要功率控制(PC)来补偿这些影响。功率控制是wcdma系统中关键的无线电资源控制功能之一。本文介绍了自适应(自整定)控制器在WCDMA系统快速功率控制环路中的应用。将传统的控制器替换为根据PC命令和错误的历史记录来决定PC命令的控制器，可以显著提高传输质量。

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Enhanced fast power control for WCDMA systems

The continuous increase of cellular phones shapes up the appearance of new communication systems and new technologies. In real life the radio signals are subjected to Rayleigh fading (fast fading) and interference. These result in large variations in signal strength. Power control (PC) is needed to compensate for these effects. Power control is one of the critical radio resource control functions in a WCDMA-based system. This paper describes a contribution of applying an adaptive (self-tuning) controller in the fast power control loop of WCDMA systems. Replacing the conventional controller with a controller that decides the PC command based on the history of the PC commands and errors improves the quality of the transmission significantly.

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11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525)

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