运营商名称
约 499 字大约 2 分钟
1. 运营商名称
1.1. PLMN
![](https://raw.githubusercontent.com/tueo/cloudimg/main/img/20240408151650.png)
PLMN由MCC和MNC构成,MCC是3位数字,MNC是2或者3位数字。
- MCC:Mobile Country Code,移动国家代码,3位数字,表示移动国家代码,用于区分移动国家。
- MNC:Mobile Network Code,移动网络代码,2或3位数字,表示移动网络代码,用于区分移动网络。
2或者3位数字的规定比较反人类,如722 010
这种MNC为3位,但是首数字为0的,假如还存在722 10
,就特别容易弄混,另外在编码时,需要标记这个PLMN的MNC是2位或者3位。
1.2. 从网络侧获取运营商名称
在注网成功后,网络侧会通过NITZ下发网络侧运营商名称。
NAS Message: NET -> UE
Protocol discriminator <EPS Mobility management messages>
Security header type <plain NAS message>
Message Type <Emm information>
Full Name
IE Name <Network Name>
IE len <11>
Number of sparebits in last octet <bits 6 to 8(inclusive) are spare and set to 0 in octet n>
Add CI <The MS not add the letters for the Country's Initials to the text string>
Coding Scheme <Cell Broadcast CS... defined in 3GPP TS 23.038 [8b>
ext 1 <1>
Text String <f6 37 39 6c 7e bb cb 20 aa 14 >
Short Name
IE Name <Network Name>
IE len <8>
Number of sparebits in last octet <this field carries no information about the number of spare bits in octet n>
Add CI <The MS not add the letters for the Country's Initials to the text string>
Coding Scheme <Cell Broadcast CS... defined in 3GPP TS 23.038 [8b>
ext 1 <1>
Text String <f6 37 39 6c 7e bb cb >
Local Time Zone
IE Name <Time Zone>
Time Zone <21 >
Universal Time And Local Time Zone
IE Name <Time Zone And Time>
Year <50>
Month <17>
Day <2>
Hour <113>
Minute <83>
Second <131>
Time zone <33>
Daylight Saving Time
IE Name <Daylight Saving Time>
IE len <1>
value <No adjustment for Daylight Saving Time>
Spare <0>