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How to improve HOSR

LTE, The UMTS Long Term Evolution: From Theory to Practice

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How to improve Hand Over Success Rate 67By akmyamuna

It is very important to maintain correct neighbour plan and do the basics. If you do not follow the basics of neighbour planning, it is very limited to possibilities to improve HOSR by using parameters. Edge, Layer, PBGT, Quality or Load sharing handovers will not work properly if we do not have correct neighbour plan. Therefore we must work on HO basics as the first step to improve HOSR.

1). Define correct neighbours

Still it is found many neighbour relations are missing even co-located neighbours. Initially we can find missing neighbours by using Nastar. After that we should work on tools available in BSCs which give you real HO requirements in the field (Undefined Adjacent Cell Measurements in BSC32 and Neighbour Cell Optimization tool in BSC6000, unfortunately still we are not able to use these tools available with the BSC6000 & M2000).

2). Method of removing neighbours

Based on HO statistics, this is the best and only method that I suggest to remove neighbours. We can remove HO relations which have fewer no of HOs and cells having poor HOSR, but it depends on the importance of the neighbour to avoid call drops). Further Nastar is not a good tool to remove neighbours.

3). Same BCCH & BSIC combinations

Avoid same BCCH+BSIC combination is very important to improve HOSR. In this case it is better to keep maximum possible distance between same BCCH+BSIC combinations. I recommend keeping 6km distance in urban area.

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3/10/2011http://hubpages.com/hub/How-to-improve-Hand-Over-Success-Rate

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4). External neighbour parameters

This is very important since there are many BSC borders in the City area. Many hand over improvement can be achieved in the city area by improving inter BSC HOSR. This external neighbour parameter checking has to be done periodically.

4). Frequency plan

Co-channel interference degrades HOSR. Proper neighbour relations will increase HOSR while improving all other KPIs such as CDR, Congestion and CSSR. I expect your support to improve HOSR by following above steps.

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How to improve Hand Over Success RateIt is very important to maintain correct neighbour plan and do the basics. If you do not follow the basics of neighbour planning, it is very limited to possibilities to improve HOSR by using parameters. Edge,...

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