Camping strategy UMTS

[partizanen72rus]

Hi, folks. Need help in realization camping strategy. I have two frequencies om my network, F1 and F2. I want users not to camp on F2, only in case of LDR or LDB HHO event. Cell xxxx0 works on F1 and cell xxxx5 works on F2. Cells xxxx0 and xxxx5 are codirectional cells of the same Nodeb


Cell ID = xxxx0 Cell Name = xxxx0
Cell Sel-reselection quality measure = CPICH Ec/N0
Hysteresis 1 for idle mode = 2
Hysteresis 1 for connect mode = 2
Hysteresis 2 for idle mode = 1
Hysteresis 2 for connect mode = 1
Reselection delay time = 1
Min quality level = -18
Min Rx level = -58
Min Rx level Extend Support = FALSE
Delta Min Rx level = <NULL>
Max allowed UE UL TX power = 24
Intra-freq cell reselection threshold for idle mode = 6
Inter-freq cell reselection threshold for idle mode = 5
Intra-freq cell reselection threshold for connect mode = 5
Inter-freq cell reselection threshold for connect mode = 4
Inter-RAT cell reselection threshold = 3
Speed dependent scaling factor for reselection delay = 255
Inter-freqency scaling factor for reselection delay = 255
Inter-RAT scaling factor for reselection delay = 255
Non-HCS indicator = NOT_CONFIGURED
Non-HCS max TCR = <NULL>
Non-HCS NCR = <NULL>
Non-HCS TCR max hysteresis = <NULL>
Hysteresis 1 for UE in CELL_PCH or URA_PCH state = 255
Hysteresis 1for UE in CELL_FACH state = 255
Hysteresis 2 for UE in CELL_PCH or URA_PCH state = 255
Hysteresis 2 for UE in CELL_FACH state = 255
Reselection delay time for UE in PCH state = 255
Reselection delay time for UE in CELL_FACH state = 255
Absolute priority level of the serving cell = 4
RSCP threshold for low-prio-freq measurement initiation = 2
Ec/No threshold for low-prio-freq measurement initiation = 2
RSCP threshold for low-prio-freq reselection = 1

Cell ID = xxxx5
Cell Name = xxxx5
Cell Sel-reselection quality measure = CPICH Ec/N0
Hysteresis 1 for idle mode = 2
Hysteresis 1 for connect mode = 2
Hysteresis 2 for idle mode = 1
Hysteresis 2 for connect mode = 1
Reselection delay time = 1
Min quality level = -18
Min Rx level = -58
Min Rx level Extend Support = FALSE
Delta Min Rx level = <NULL>
Max allowed UE UL TX power = 24
Intra-freq cell reselection threshold for idle mode = 6
Inter-freq cell reselection threshold for idle mode = 5
Intra-freq cell reselection threshold for connect mode = 5
Inter-freq cell reselection threshold for connect mode = 4
Inter-RAT cell reselection threshold = 3
Speed dependent scaling factor for reselection delay = 255
Inter-freqency scaling factor for reselection delay = 255
Inter-RAT scaling factor for reselection delay = 255
Non-HCS indicator = NOT_CONFIGURED
Non-HCS max TCR = <NULL>
Non-HCS NCR = <NULL>
Non-HCS TCR max hysteresis = <NULL>
Hysteresis 1 for UE in CELL_PCH or URA_PCH state = 255
Hysteresis 1for UE in CELL_FACH state = 255
Hysteresis 2 for UE in CELL_PCH or URA_PCH state = 255
Hysteresis 2 for UE in CELL_FACH state = 255
Reselection delay time for UE in PCH state = 255
Reselection delay time for UE in CELL_FACH state = 255
Absolute priority level of the serving cell = 4
RSCP threshold for low-prio-freq measurement initiation = 2
Ec/No threshold for low-prio-freq measurement initiation = 2
RSCP threshold for low-prio-freq reselection = 1

[partizanen72rus]

May be someone has some examples from his own network?

[samuraial]

Hello m8,

In order to prevent users to camp in your F2 frequency you need to block access class from 0~15 in UCELLACCESSSTRICT so this way your users won't select your F2.
This way all the RRC will happen in F1 and by LDR or LDB or DRD(consider this also for HS+ services) they will pass in F2.
This is called prefered camping and there are plenty of HW documentations explaining that.

B/R

[partizanen72rus]

In a case of locking access classes from 0~15 in UCELLACCESSSTRICT, users camp to F2 nontheless and with no service...

[agenov]

this is not true.

just barred the cell without touch these access classes.



Hello m8,

In order to prevent users to camp in your F2 frequency you need to block access class from 0~15 in UCELLACCESSSTRICT so this way your users won't select your F2.
This way all the RRC will happen in F1 and by LDR or LDB or DRD(consider this also for HS+ services) they will pass in F2.
This is called prefered camping and there are plenty of HW documentations explaining that.

B/R

[partizanen72rus]

Thanks a lot, is it possible to prevent campinng on F2 with ucellselresel parameter without barring. F.e.
MOD UCELLSELRESEL: CellId=xxxx6, Qqualmin=-10, IdleSintrasearch=10, IdleSintersearch=9, ConnSintrasearch=0, ConnSintersearch=0;

[dtvt2]

In my network I use 2 strategy
1. Cell reserve for F2
2. Define one way Neighbor from F2 - F1. And use Sintersearch and Qoffset to move Ue from F2 to F1
dtvt2

[partizanen72rus]

In my network I use 2 strategy
1. Cell reserve for F2
2. Define one way Neighbor from F2 - F1. And use Sintersearch and Qoffset to move Ue from F2 to F1
dtvt2

Could you give an example for codirectional F1 and F2 cells? (including load balancing)

[samuraial]

By these values you just say to the UE to start reselect as fast as possible Ecno<10?? EcNo doesn't get positive values. So your Qqualmin should be -18 and Intra/Inter 9.
By blocking the accessstrict class I am sure the HSPA services will be on F2.(hot-spot).

@agenov
Qqualmin = 0. Qrxlevmin = -13.


B/R

[agenov]

u can but after LDR or whatever u use need to push back the traffic on F1


Thanks a lot, is it possible to prevent campinng on F2 with ucellselresel parameter without barring. F.e.
MOD UCELLSELRESEL: CellId=xxxx6, Qqualmin=-10, IdleSintrasearch=10, IdleSintersearch=9, ConnSintrasearch=0, ConnSintersearch=0;