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# Layer Ho

Viewing 12 posts - 1 through 12 (of 12 total)
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• #64457
Faares
Guest

Dear all , i want to know as we know the layer HO is important 4 dual band network,
the question is , can Layer HO performed between cells of different band ,same layer and different priority .

#64458
Bijoy
Guest

Hi Faares
When bands are assigned layers, the layers have to belong to bands in an ascending order,i.e, each layer can belong to only one band.

Br\\
Bijoy

#64459
Faares
Guest

HI Bijoy
thanks for the reply , what i want to know is, in our network the 900 band cells are in layer 3 priority 2 and 1800 band cells in layer 3 priority 1
, so under this condition is it possible to have a Layer handover between 900 to 1800 cells (when the layer HO threshold + the inter layer HO hysteresis equal or less then the neighbor cell Rxleve.)

Thanks

#64460
Eagle
Guest

Hi Faares.
Layer HO depends only from the layer. dosent mater what priority have the TRX of the different layers.

#64461
Faarer
Guest

Eagle
so in my case it is two different bands in same layer but diffse priority (as i mentioned before.) do you mean there will be no hand overs at this case.

#64462
Eagle
Guest

Yes there will not be layer HO but other HO like BQ, Interference… can be performed

#64463
Faares
Guest

#64464
Eagle
Guest

What will happen in the following example(huawei equip.) if we increase hysteresis?

Actual Inter-layer HO Threshold of a serving cell = configured Inter-layer HO Threshold – Inter-layer HO Hysteresis

Actual Inter-layer HO Threshold of an adjacent cell = configured Inter-layer HO Threshold + Inter-layer HO Hysteresis of an adjacent cell – 64.

Exmp:Hysteresis = 3
25 – 3 = 22(-88dB) for serving cell
25 + 67 – 64 = 28(-82dB) for the adjacent cell

Exmp:Hysteresis = 5
25 – 5 = 20(-90dBm) for serving cell
25 + 67 – 64 = 28(-82dB) for the adjacent cell

#64465
goner700
Guest

Hi all,
I can’t seem to grasp the concept of Inter-layer HO Threshold. Is it really to control HO of outdoor to indoor cells? Kindly asking for your help. Thank you very much in advance.

#64466
LEMAURE
Guest

Hello goner700!
Layer HO helps to keep or prioritize traffic on a given layer. This may be in particular the case with outdoor and indoor environment if there are not in the same layer.

#64467
goner700
Guest

Have you used Layer HO parameter before? If so, on what cases?
Thank you very much.

#64468
mathias
Guest

Hi expects, kindly help me with the understanding of how Inter layer HO threshold works.

Question 1: does Inter layer HO threshold work with handover from only higher to lower layer. i.e (layer 3 to layer 2? )or it works with handover from any direction?

Question 2:will Inter layer HO threshold work with different layers but the same priorities? or it only works when the layers are different and the priorities are also different?

Please kindly help me becos am confused.

Viewing 12 posts - 1 through 12 (of 12 total)
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