?? g7-3.htm
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</SPAN><FONT color=#0000cc>(3) 閉鎖PLMN問路<O:P>
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face=楷體_GB2312>這種功能在圖7-2中所配置的數據字段為6F7B，用于存儲4個不允許移動設備自動進入的PLMN網路。因每個PLMN由移動國家碼(MCC)和移動網路碼(MNC)表示，需要3字節的容量，所以共需12字節的容量。<O:P>
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</SPAN><FONT color=#0000cc>(4) 位置信息<O:P>
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face=楷體_GB2312>這種功能在圖7-2中所配置的數據字段為6F7E，用于存儲客戶臨時身份識別(TMSI)、位置區識別(LAI)、臨時身份的有效時間(TMSITIME)、位置更新狀態。這樣，既能保證客戶的移動性，又能很快地尋找到客戶移動后的新位置。TMSI需要4字節的容量，LAI需要5字節的容量，TMSITIME需要1字節的容量，共需要ll字節容量。<O:P><BR><BR>
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</SPAN><FONT color=#0000cc>(5) 加密密鑰(Kc)及它的序列號碼(n)<O:P>
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color=#000066>這種功能在圖7-2中所配置的數據字段為6F20，用于存儲加密密鑰(Kc)和它的序列號碼(n)。Kc是客戶信息加解密A5算法的入口參數，需要8字節的容量。n是代表Kc可在空中接口上傳輸代號，通常需要3比特容量，一般給予1字節容量。<O:P></O:P></FONT></FONT></SPAN></P>
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</SPAN><FONT color=#0000cc>(6) PLMN選擇器<O:P> </O:P></FONT><FONT
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face=楷體_GB2312>這種功能在圖7-2中所配置的數據字段為6F30，用于客戶或運營者選擇使用PLMN網路的優先次序。至少能存儲8個PLMN
代號，每個需要3字節容量，共24字節的容量。<BR><BR></FONT></FONT></SPAN></FONT></P>
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</SPAN><FONT color=#0000cc>(7) 廣播控制信道信息(BCCH)<O:P>
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face=楷體_GB2312>這種功能在圖7-2中所配置的數據字段為6F74，用于存儲加快呼叫連接進程的BCCH。即在選擇小區時，可以縮小移動臺對
BCCH載波的搜索范圍。需要容量共16字節。</FONT><O:P>
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</SPAN><FONT color=#0000cc>(8) 接入控制<O:P>
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face=楷體_GB2312>這種功能在圖7-2中所配置的數據字段為6F78，用于存儲客戶接入控制等級。在15個等級中，有l0個等級可分配給一般的客戶，5個等級分配給有高、優先權的客戶，所以共需2個字節。<O:P>
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</SPAN><FONT color=#0000cc>(9) 被叫客戶子地址<O:P>
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