收集汇总的切换失败主要原因,其中自己体会最深的是
基站时钟问题导致切换失败
BA2表被手动修改
加密算法不一致

Entry level answer:
1. Neighbours Definition with Co BCCH and BSIC.
2. Wrong HO Synchronisation.
3. Non Symmetrical (One Way Neighbours).
4. Adjacencies Discrepancies.
5. High TCH Congestion.
6. Missing Potential Neighbours.
7. Missing Frequencies on Active State of BA List.
8. Creation of unwanted far of Neighbours with low signal
strength
9. Abis failure (PCM related faults).
10. VSWR-DAC Values Issues.
11. BTS Hardware Issues.
Some heavy hitters to consider:
1.Speech Codec mismatch
2.Encryption/Ciphering mismatch
.......各位大虾继续补充.

[ 本帖最后由 cenfuyan 于 2011-8-12 00:18 编辑 ]