Generic selectors
Exact matches only
Search in title
Search in content

Reply To: HO failure RR message

#56198
IST
Guest

hi Pix,
below HO command copy and past:
MS1
Handover Command

Time: 12:27:47.54
Frame number: 4833242

MsgCtrlOperation :
Skip indicator : 0
Protocol discriminator : (6) Radio resources management messages
Message type : 43
Cell Description
BSIC : 3-0
BCCH ARFCN : 26
Description of the first channel, after time
Channel type : (1) TCH/F + ACCHs
Timeslot number (TN) : 1
Training sequence code (TSC) : 0
Hopping RF channel : (1) RF Hopping Channel
Mobile allocation index offset (MAIO) : 1
Hopping sequence number (HSN) : 17
Handover reference
Handover reference value : 105
Power command and access type
Access type control (ATC) : (0) Sending of Handover Access is mandatory
Enhanced power control (EPC) : (0) Channel(s) not in EPC mode
Fast measurement reporting and power control (FPC) : (0) FPC not in use
Power level : 5
Synchronization indication
Normal cell indication : (1) Out of range timing advance shall trigger a handover failure procedure
Report observed time difference : (0) ‘Mobile Time Difference’ IE shall not be included in the Handover Complete message
Synchronization indication : (0) Non-synchronized
Frequency channel sequence, after time
Channels : 50 56 60 71 76
[0 ] : 50
[1 ] : 56
[2 ] : 60
[3 ] : 71
[4 ] : 76
Multi-Rate Configuration
Multirate speech version : (1) Adaptive Multirate speech version 1 – FR AMR, HR AMR or OHR AMR
Noice Suppression Control Bit (NSCB) : (0) Noise Suppression can be used (default)
Initial Codec Mode Indicator (ICMI) : (1) The initial codec mode is defined by the Start Mode field
Start Mode : (2) CODEC_MODE_3 (Represents the third lowest mode, if the ACS includes more than two modes)
Set of AMR codec modes
Set of AMR Codec Modes :
12.2 kbit/s codec rate is part of the subset :
10.2 kbit/s codec rate is part of the subset :
7.40 kbit/s codec rate is part of the subset :
5.15 kbit/s codec rate is part of the subset :
Threshold 1 : (14) 7.0 dB
Hysteresis 1 : (1) 0.5 dB
Threshold 2 : (21) 10.5 dB
Hysteresis 2 : (1) 0.5 dB
Threshold 3 : (26) 13.0 dB
Hysteresis 3 : (1) 0.5 dB

Header dump (Hex):
2A 00 21 00 00 00 04 21 00 03
01 00 01 1C

Message dump (Hex):
06 2B 18 1A 09 10 51 69 05 D8
69 32 64 B5 00 00 00 00 00 00
03 06 2A D2 0E 15 45 A1

hi,,,no HOSR KPI doesn’t affect too much.I mean handover success rate is ok. Actually this problem is not for a particular cell.And not related to any particular BSC.

And pix,
is there any minimum time duration between the ho command and ho failure message?
in my cases there was no time duration between the ho command and ho failure.MS sent HO failure instantly at the same time it got the ho command.