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标题: 恳请大侠帮忙：关于3GPP TS 04.60中PSI部分的解读 [查看完整版帖子] [打印本页]

时间: 2007-8-16 16:40

作者: jackren317 标题: 恳请大侠帮忙：关于3GPP TS 04.60中PSI部分的解读

<span style="font-size: 10.5pt; font-family: 宋体;">最近新入手做</span><span lang="EN-US" style="font-size: 10.5pt; font-family: "Times New Roman";">GPRS</span><span style="font-size: 10.5pt; font-family: 宋体;">通信信令处理方面的工作。可是对于</span><span lang="EN-US" style="font-size: 10.5pt; font-family: "Times New Roman";">3GPP</span><span style="font-size: 10.5pt; font-family: 宋体;">协议一点都不熟，咬着英文看着关于</span><span lang="EN-US" style="font-size: 10.5pt; font-family: "Times New Roman";">04.60</span><span style="font-size: 10.5pt; font-family: 宋体;">部分</span><span lang="EN-US" style="font-size: 10.5pt; font-family: "Times New Roman";">

SI</span><span style="font-size: 10.5pt; font-family: 宋体;">部分的内容，可是对于</span><span lang="EN-US" style="font-size: 10.5pt; font-family: "Times New Roman";">Table</span><span style="font-size: 10.5pt; font-family: 宋体;">里面的描述怎么也看不明白啊，尤其是对于以下这个描述：<br/></span><span lang="EN-US" style="font-size: 10.5pt; font-family: "Times New Roman";"><br/>
</span><span style="font-size: 10.5pt; font-family: 宋体;"></span><span lang="EN-GB" style="font-size: 10.5pt; font-family: "Times New Roman";"> < bit
(val(Extension Length) + 1)</span><span lang="EN-US" style="font-size: 10.5pt; font-family: "Times New Roman";"> </span><span lang="EN-US" style="font-size: 10.5pt; font-family: "Times New Roman";">&
{ <Extension Information > ! { bit ** = <no..string> } } > </span><span style="font-size: 10.5pt; font-family: 宋体;">怎么解读啊？</span><span lang="EN-US" style="font-size: 10.5pt; font-family: "Times New Roman";"><br/>
</span><span style="font-size: 10.5pt; font-family: 宋体;">还有一直都没有弄明白这个描述是用什么语言写的啊？看到论坛有人说网络协议一般都是用</span><span lang="EN-US" style="font-size: 10.5pt; font-family: "Times New Roman";">ASN.1</span><span style="font-size: 10.5pt; font-family: 宋体;">写的，可是下了个关于</span><span lang="EN-US" style="font-size: 10.5pt; font-family: "Times New Roman";">ASN.1</span><span style="font-size: 10.5pt; font-family: 宋体;">的文件来看，却发现里面说的跟这个还是有很多不</span><span style="font-size: 10.5pt; font-family: 宋体;">同。</span><span lang="EN-US" style="font-size: 10.5pt; font-family: "Times New Roman";"><br/>
<br/>
</span><span style="font-size: 10.5pt; font-family: 宋体;">请各位熟悉这些的大侠指点一下啊，先谢谢了。</span>

时间: 2007-8-17 14:23

作者: jackren317

没人顶，俺自己顶。描述消息比特流的方法是CSN.1，具体如何规定的还在进一步学习中～

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