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Umbrella Cell handover

Pix - 2nd March 2007  (19:34 GMT)

Hello Nishant,

Lucky you, i love multilayer network.

If you have only collocated sites, i recommend you don't create umbrellas.

(remark : the parameters below are quite standard, but the names are not standard.. so you'll have to translate them into your vendor's language)


So, try this :
- activate a "CAPTURE HANDOVER" on the macro cell.

- disable the POWER BUDGET HANDOVER on the micro cell.

- Set the parameter "L RXLEV CPT HO(micro, macro)" = -77dBm (this parameter is the rxlev at which the macro traffic will be capture by micro cell)

- Set the parameter "L RXLEV HO(micro)" = -85dBm (this will allow MS to exit the micro cell using "low rxlev on downlink" early enough to avoid a dropped call.. trust me, you have to use this way to exit the cell safely, since PBGT HO is disable)

- Adjust downlink power control on the micro (U = -70dBm ; L = -80dBm) if it is enabled.

Ok, good luck now :)

Pix

NISHANT - 2nd March 2007  (07:14 GMT)

Hi,

I want to enable a umbrella cell HO for one site where we have Micro co-located with a Macro.

Macro is taking a huge traffic but micro does not even take 1 erlang.

Can anybody suggest me ,do i have to enable a umbrella cell HO in both the cells and also tell me how is it going to work and also what thresholds to set.

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