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在简要分析和对比目前各种ＣＤＭＡ 标准的基础上，提出在移动通信反向信道中采用准同步ＣＤＭＡ方式。并在ＣＤＭＡ 经典文献［７］的基础上，推导得到了准同步ＣＤＭＡ 性能描述公式，可作为经典文献［７］的扩展。准同步ＣＤＭＡ 将导致与现有ＣＤＭＡ 方式不同的技术设计，初步探讨了ＰＮ 码设计，得到了有意义的结论，下一步有待于对准同步ＣＤＭＡ技术包括扩频码设计进行更深入研究
Based on a brief analysis and comparison of various current CDMA standards, a quasi-synchronous CDMA scheme is proposed in the reverse channel of mobile communications. On the basis of CDMA classic document [7], the formula of quasi-synchronous CDMA performance description is deduced, which can be used as an extension of classical document [7]. Pseudo-Synchronous CDMA will result in a different technology design from the existing CDMA methods. Preliminary discussions have been made on the design of PN codes and meaningful conclusions have been obtained. The next step is to conduct further research on alignment CDMA technology including spreading code design