原帖由
五年陽光 于 2011-3-3 00:05:57 發(fā)表
該專題主要從LAC、CI、BCCH/TCH、BSIC、MAIO、HSN、鄰區(qū)規(guī)劃來進(jìn)行討論。對(duì)新人還是很有學(xué)習(xí)意義。希望大家多多考與,鼓勵(lì)對(duì)專題內(nèi)容進(jìn)行補(bǔ)充,另外如果我在專題中講述不對(duì)的歡迎大家批評(píng)指正。
一.LAC規(guī)劃 ...
樓主,關(guān)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(guān)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(jìn)制的0000和FFFE用作預(yù)留,而不是16進(jìn)制的0000和FFFF;
2、規(guī)范中關(guān)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(yù)留
感謝上文提供了具體是哪個(gè)規(guī)范說明了LAC和CI的取值范圍。