Performance evaluation of the trial system based on wideband CDMA

1997 IEEE International Conference on Personal Wireless Communications (Cat. No.97TH8338) Pub Date : 1997-12-17 DOI:10.1109/ICPWC.1997.655535

O. Keisuke, W. Akihiko

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Abstract

This paper outlines the performance evaluation for verification of the wideband CDMA system. The characteristics of the wideband CDMA system (IS-665), which attracts much attention as one of the next generation PCS (personal communication service) systems, were evaluated. These are PCS standards which are aimed, at high-quality voice transmission equivalent to PSTN, radio data transmission and packet radio transmission. The outdoor field trial results are discussed. The field trial was carried out at a carrier frequency of 2 GHz, a transmission output of 29 dBm and by a three-sector system. The area evaluated under the microcell service experiment was within a radius of about 0.5 miles either in an urban or suburban area. As the voice coding method, 32 kbps ADPCM voice coding featuring good transmission characteristics in a poor radio propagation environment was adopted. As a result of characteristic evaluation trials in the actual environment, it has been shown that the wideband CDMA system is a new promising PCS system and is also favorable for FPLMTS and IMT-2000.

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基于宽带CDMA的试验系统性能评价

本文概述了用于验证宽带CDMA系统的性能评估。对作为下一代个人通信服务(PCS)系统之一备受关注的宽带CDMA系统(IS-665)的特性进行了评价。这些都是PCS标准，旨在实现与PSTN相当的高质量语音传输、无线电数据传输和分组无线电传输。讨论了室外现场试验结果。现场试验在2 GHz载波频率下进行，传输输出为29 dBm，采用三扇区系统。微蜂窝服务试验评估的区域在城市或郊区的半径约0.5英里范围内。语音编码方式采用在恶劣的无线电传播环境下具有良好传输特性的32 kbps ADPCM语音编码。在实际环境下进行的特性评估试验表明，宽带CDMA系统是一种很有前途的新型PCS系统，对FPLMTS和IMT-2000也是有利的。

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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1997 IEEE International Conference on Personal Wireless Communications (Cat. No.97TH8338)

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