在2G小區(qū)的統(tǒng)計中，有一項無線統(tǒng)計是PS域?qū)ず簦瑥氖聝?yōu)化工作多年一直未能了解，問過MOT，NSN和E///的老師都無正解。曾經(jīng)NSN的老師解釋過，說是IA消息，這是錯誤的。
理論上，當(dāng)網(wǎng)絡(luò)有數(shù)據(jù)要傳送給MS時，應(yīng)該就發(fā)送PAGING消息。但是，當(dāng)前中國移動的網(wǎng)絡(luò)中，如果MS沒有處在ready或standby狀態(tài)下，網(wǎng)絡(luò)就算有數(shù)據(jù)下發(fā)給手機也不是通過Paging尋找MS，而是通過PUSH消息，要求MS發(fā)送channel reques來主動獲取數(shù)據(jù)。而當(dāng)MS處于standby或者ready的GMM狀態(tài)下，且GRR狀態(tài)為packet idle mode，則網(wǎng)絡(luò)層如果有下行數(shù)據(jù)發(fā)送給MS，則需要通過Paging給MS要求MS建立一個RR連接。這就和PUSH消息的作用是一樣的，要求MS發(fā)送Channel Request
在尋呼消息類型1和2中有一個字段“Packet page Indication”

Paging Request Type 1
The Packet Page Indication i field relates to Mobile Identity i (i = 1, 2) and indicates the kind of paging procedure associated with the mobile station identity. If the identity is not IMSI the Packet Page Indication has no meaning and is ignored.

L
paging procedure for RR connection establishment;

H
packet paging procedure.


Paging Request Type 2
The Packet Page Indication 3 field relates to Mobile Identity 3 and indicates the kind of paging procedure associated with the mobile station identity. If the identity is not IMSI the Packet Page Indication has no meaning and is ignored.

L
paging procedure for RR connection establishment;

H
packet paging procedure


可以查詢3gpp規(guī)范的44018的10.5.2.23和10.5.2.24

[ 本帖最后由 nitwitjason 于 2012-12-13 13:40 編輯 ]