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為什么要換？因?yàn)闃?biāo)準(zhǔn)是這么定的!
參考TS24.008,
Figure10.5.13/3GPP TS 24.008 PLMN Listinformation element
Octet 1 PLMN List IEI
Octet 2 Length of PLMN List contents
Octet 3 (bits 4 to 8) MCC, digit 2, PLMN 1 (bits 1 to 4) MCC digit 1, PLMN 1
Octet 4 (bits 4 to 8) MNC, digit 3, PLMN 1 (bits 1 to 4) MCC digit 3, PLMN 1
Octet 5 (bits 4 to 8) MNC, digit 2, PLMN 1 (bits 1 to 4) MNC digit 1, PLMN 1
...
Octet 45 (bits 4 to 8) MCC, digit 2, PLMN 15 (bits 1 to 4) MCC digit 1, PLMN 15
Octet 46 (bits 4 to 8) MNC, digit 3, PLMN 15 (bits 1 to 4) MCC digit 3, PLMN 15
Octet 47 (bits 4 to 8) MNC, digit 2, PLMN 15 (bits 1 to 4) MNC digit 1, PLMN 15
MCC, Mobilecountry code (octet 3, octet 4 bits 1 to 4
The MCC field iscoded as in ITU-T Rec. E212, Annex A.
MNC, Mobilenetwork code (octet 5, octet 4 bits 5 to 8).
The coding of this field is the responsibilityof each administrationbutBCDcodingshall be used.The MNC shall consist of 2 or 3 digits. For PCS 1900 for NA, Federalregulation mandates that a 3-digit MNC shall be used. However a networkoperator may decide to use only two digits in the MNC over the radiointerface. In this case, bits 5 to 8 of octet 4 shall be coded as"1111". Mobile equipment shall accept MNC coded in such a way.[table][/table]
[ 本帖最后由 yyolanda 于 2013-8-2 09:38 編輯 ]
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