今天拿到我的博客访问记录里，有一位朋友在百度里搜索IEEE802.15.4的协议文本下载，并且来到了我的博客。我饶有兴致的看了看怎么回事。原来百度里一堆不想关的页面列在首页，我的博客也忝列其中。

看来还是有人不知道在哪里下载IEEE的802族协议文本。IEEE802协议族，由于广泛流行，长了IEEE标准化协会的很大面子。所以IEEE802族协议，是可以在其官方网站上免费下载的。网址是

http://standards.ieee.org/getieee802/

或许朋友们可以在若干个协议文本里搜索到我的名字哦 Wenhao Zhu，呵呵。比如在 802.15.4c协议里。

由于相关许可协议限制，我不能把该协议文本贴在我的博客上，我也建议您不要做。以下是许可协议摘录

COPYRIGHT

This IEEE Standards Publication ("Document") is approved by the IEEE Standards Association ("IEEE-SA") Standards Board and is published in accordance with established IEEE-SA Standards Board bylaws and operations procedures.

The Institute of Electrical and Electronics Engineers, Inc., ("IEEE") owns the copyright to this Document in all forms of media. Copyright in the text retrieved, displayed or output from this Document is owned by IEEE and is protected by the copyright laws of the United States and by international treaties. The IEEE reserves all its rights not expressly granted herein.

The IEEE is providing the Document to you at no charge. However, the Document is not to be considered "Public Domain", as the IEEE is, and at all times shall remain, the sole copyright holder in the Document.

TERMS OF USE

You may retrieve, download and print one (1) copy of this Document for your personal use. You may retain one (1) additional copy of this Document as your personal archive copy.

Except as allowed by the copyright laws of the United States of America or applicable international treaties, or as explicitly allowed in these Terms of Use, you may not further copy, prepare, and/or distribute copies of this Document, nor significant portions of the document, in any form, without prior written permission from the IEEE.

Requests for permission to reprint this Document, in whole or in part, or requests for a license to reproduce and/or distribute this Document, in any form, must be submitted via email to Standards Licensing and Contracts, or in writing at:

IEEE Standards Association
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Piscataway, NJ 08855-1331, USA.

不仅IEEE的这类标准可以下载，ITU的几乎所有标准都可以很容易的从官网上下载到相关文件。

最后建议一下，搜索这些东西，尽量用英语关键词，尽量用Google.com