随着多样化需求的增加及作用距离的延伸，基带窄脉冲方式的超宽带技术又在原有的数据业务的基础础上的到了提伸，IEEE802.15.4a就是一种采用基带窄脉冲方式的超宽带综合业务的标准

-With the diversification of the increase in demand and the role of an extension of the distance from the base with narrow pulse ultra-wideband technology on the basis of the basis of the original data business to mention stretch IEEE802.15.4a is a baseband narrow pulse ultra- Broadband Integrated Services standards