- This topic has 11 replies, 1 voice, and was last updated 6 years ago by mathias.
29th September 2010 at 14:53 #64457FaaresGuest
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 .
thank you in advance30th September 2010 at 06:12 #64458BijoyGuest
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.
Bijoy1st October 2010 at 17:06 #64459FaaresGuest
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.)
Thanks2nd October 2010 at 19:39 #64460EagleGuest
Layer HO depends only from the layer. dosent mater what priority have the TRX of the different layers.3rd October 2010 at 07:59 #64461FaarerGuest
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.4th October 2010 at 06:18 #64462EagleGuest
Yes there will not be layer HO but other HO like BQ, Interference… can be performed4th October 2010 at 16:34 #64463FaaresGuest
thanks for your information ,5th October 2010 at 08:13 #64464EagleGuest
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 cell3rd March 2015 at 02:48 #64465goner700Guest
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.16th March 2015 at 14:26 #64466LEMAUREGuest
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.23rd March 2015 at 02:59 #64467goner700Guest
Thanks for your response LEMAURE.
Have you used Layer HO parameter before? If so, on what cases?
Thank you very much.5th October 2015 at 15:47 #64468mathiasGuest
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.