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<TD borderColor=#6699ff><FONT
size=2>您的位置：技術園地>技術講座-GSM蜂窩移動通信系統 </FONT></TD></TR>
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<DIV align=center><FONT size=4><B><SPAN
style="FONT-SIZE: 15pt; COLOR: navy; FONT-FAMILY: 宋體; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'"><SPAN
lang=EN-US>第七講 SIM卡<O:P> (3)</O:P></SPAN></SPAN></B></FONT></DIV></TD></TR>
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style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><B>7.3<SPAN
style="mso-spacerun: yes"> </SPAN>SIM卡功能<O:P>
</O:P></B></SPAN></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-ALIGN: justify"><SPAN
lang=EN-US
style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"> <FONT
size=3><SPAN
style="FONT-FAMILY: 宋體; mso-hansi-font-family: Times New Roman; mso-spacerun: yes">
</SPAN><FONT color=#000066><B><FONT color=#0099cc>1．功能簡介<O:P>
</O:P></FONT><O:P></O:P></B><O:P></O:P></FONT></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-ALIGN: justify"><FONT
color=#000066><SPAN lang=EN-US
style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3><SPAN
style="FONT-FAMILY: 宋體; mso-hansi-font-family: Times New Roman; mso-spacerun: yes">
</SPAN><FONT
face=楷體_GB2312>SIM卡的主要完成兩種功能：存儲數據(控制存取各種數據)和在安全條件<BR>下(個人身份號碼PIN、鑒權鑰Ki正確)完成客戶身份鑒權和客戶信息加密算法的<BR>全過程。<O:P>
</O:P></FONT><O:P></O:P></FONT></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-ALIGN: justify"><FONT
color=#000066><SPAN lang=EN-US
style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3><SPAN
style="FONT-FAMILY: 宋體; mso-hansi-font-family: Times New Roman; mso-spacerun: yes">
</SPAN><FONT
face=楷體_GB2312>此功能主要是由SIM卡內的一部具有操作系統的微處理機完成。芯片有八個觸點，與移動臺設備相互接通是在卡插入設備中接通電源后完成。此時，操作系統和指令設置可以為SIM提供智能特性。</FONT><O:P>
</O:P></FONT></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><FONT
color=#000066><SPAN lang=EN-US
style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><FONT
face=楷體_GB2312
size=3>SIM卡智能特性的邏輯結構是樹型結構。全部特性參數信息都是用數據字段方式表達，如圖7-2所示。即在根目錄下有三個應用目錄，一個屬于行政主管部門應用目錄，兩個屬于技術管理的應用目錄，分別是GSM應用目錄和電信應用目錄。所有的目錄下均為數據字段，有二進制的和格式化的數據字段。數據字段中的信息有的是永存性的即不能更新的，有的是暫存的，需要更新的。每個數據字段都要表達出它的用途、更新程度、數據字段的特性(如識別符)、類型是二進制的還是格式化的等。</FONT></SPAN></FONT><FONT
face=楷體_GB2312><SPAN lang=EN-US
style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3><O:P> </O:P></FONT></SPAN></FONT><SPAN lang=EN-US
style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3><O:P></O:P></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><SPAN
lang=EN-US
style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3><O:P></O:P></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 42pt; TEXT-ALIGN: justify; mso-char-indent-count: 4.0; mso-char-indent-size: 10.5pt"><SPAN
lang=EN-US
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size=3>
<IMG height=189 src="g7-3.files/g7-3.H41.gif" width=345
v:shapes="_x0000_i1025"><O:P> </O:P></FONT></SPAN></P>
<P class=MsoNormal
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align=center><SPAN
style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><FONT
face=楷體_GB2312 color=#000066 size=3>圖<SPAN lang=EN-US>7-2<SPAN
style="mso-spacerun: yes"> </SPAN>SIM卡存儲配置<O:P>
</O:P></SPAN></FONT><FONT color=#000066 size=3><SPAN
lang=EN-US><O:P></O:P></SPAN></FONT><FONT size=3><SPAN
lang=EN-US><O:P></O:P></SPAN></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt"
align=center><SPAN
style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3><SPAN lang=EN-US><O:P></O:P></SPAN></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-ALIGN: justify"><SPAN
lang=EN-US
style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3><SPAN
style="FONT-FAMILY: 宋體; mso-hansi-font-family: Times New Roman; mso-spacerun: yes">
</SPAN><FONT face=楷體_GB2312
color=#000066>SIM卡除了存儲正常的數據字段，也存儲有非文件字段，如鑒權鑰、個人身份鑒權號碼、個人解鎖碼等數據。<O:P>
</O:P></FONT></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><FONT
color=#000066><SPAN lang=EN-US
style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><FONT
face=楷體_GB2312
size=3>SIM卡是隨著GSM階段實施，開發其階段性的功能。通常在第二階段所建議的功能都是在第一階段的基礎上建立的，因而第二階段的SIM卡也適用于第一階段。<O:P>
</O:P></FONT></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"></P>
<P class=MsoNormal
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color=#000066><SPAN lang=EN-US
style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3><O:P></O:P></FONT></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><FONT
color=#000066><SPAN lang=EN-US
style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3> <O:P> </O:P></FONT></SPAN></FONT></P>
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color=#000066><SPAN lang=EN-US
style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3><SPAN
style="FONT-FAMILY: 宋體; mso-hansi-font-family: Times New Roman; mso-spacerun: yes">
</SPAN><B><FONT color=#0099cc>2．功能配置<O:P>
</O:P></FONT><O:P></O:P></B><O:P></O:P></FONT></SPAN></FONT></P>
<P class=MsoNormal
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color=#000066><SPAN lang=EN-US
style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><FONT
color=#0000cc size=3>(1) 業務表<O:P> </O:P></FONT><FONT
size=3><O:P></O:P></FONT></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-ALIGN: justify"><FONT
color=#000066><SPAN lang=EN-US
style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3><SPAN
style="FONT-FAMILY: 宋體; mso-hansi-font-family: Times New Roman; mso-spacerun: yes">
</SPAN><FONT face=楷體_GB2312>這種功能在圖7-2中所配置的數據字段為6F38，用于識別在
SIM卡中已分配的和已激活的業務。這些業務是移動開發所需要的業務，如電信目錄下的各種業務。<O:P>
</O:P></FONT></FONT></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-ALIGN: justify"> </P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-ALIGN: justify"><FONT
color=#000066><SPAN lang=EN-US
style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3><SPAN
style="FONT-FAMILY: 宋體; mso-hansi-font-family: Times New Roman; mso-spacerun: yes">
</SPAN><FONT color=#0000cc>(2) 國際移動開發識別(IMSI)<O:P>
</O:P></FONT><O:P></O:P></FONT></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-ALIGN: justify"><FONT
color=#000066><SPAN lang=EN-US
style="FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3><SPAN
style="FONT-FAMILY: 宋體; mso-hansi-font-family: Times New Roman; mso-spacerun: yes">
</SPAN><FONT
face=楷體_GB2312>這種功能在圖7-2中所配置的數據字段為6F07，是用于存儲國際移動開發身份的字段。IMSI最長可由15位設置組成，每位數字需4比特容量，共需9字節容量。為了它的安全性，則在空中接口傳輸一次，以后均由可變化的TMSI來替代。<O:P><BR><BR>
</O:P></FONT></FONT></SPAN></FONT></P>
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