樓主，關于：LAC和CI的取值范圍，我查了GSM規(guī)范03.03，和上文有些不一致，大家一起討論下哈：


1、規(guī)范中關于LAC的取值范圍是這樣寫的：
Location Area Code (LAC) which is a fixed length code (of 2 octets) identifying a location area within a GSM
PLMN. This part of the location area identification can be coded using a full hexadecimal representation except
for the following reserved hexadecimal values:
0000, and
FFFE
These reserved values are used in some special cases when no valid LAI exists in the MS (see GSM 04.08 and
GSM 11.11).

即LAC的取值范圍是（1至65533，和65535），16進制的0000和FFFE用作預留，而不是16進制的0000和FFFF；
2、規(guī)范中關于CI的取值范圍是這樣寫的：
The BSS and cell within the BSS is identified within a location or routing area by adding a Cell Identity (CI) to the
location or routing area identification, as shown in figure 5. The CI is of fixed length with 2 octets and it can be coded
using a full hexadecimal representation.
即CI的取值范圍是0至65535，不需要預留

感謝上文提供了具體是哪個規(guī)范說明了LAC和CI的取值范圍。