Amrel
2015-04-07, 05:29 PM
Hi!
Please your help for this case.I have SDDCCH drop on more 60 sectors. Vendor Ultra Site (nokia). Drop observed during the night (60-80%) The reason of drops is subscriber call counter No. T3101. TCH drop - 8-15% - slightly above normal. BTS's does not have anything in common with each other. BTS don't have any alarm. Where do look for the cause?
http://s017.radikal.ru/i414/1504/c4/14f8ed1ea7f1t.jpg (http://radikal.ru/fp/4f6e29ff139144158919232e2f15801e)
http://s017.radikal.ru/i408/1504/ad/9ada2b2e373dt.jpg (http://radikal.ru/fp/72d0fe5b20b84f78babaadf14ad83afe)
http://s61.radikal.ru/i171/1504/b5/11c3e410eda4t.jpg (http://radikal.ru/fp/c9f5cad20e794551963eaed60e00b134)
Please your help for this case.I have SDDCCH drop on more 60 sectors. Vendor Ultra Site (nokia). Drop observed during the night (60-80%) The reason of drops is subscriber call counter No. T3101. TCH drop - 8-15% - slightly above normal. BTS's does not have anything in common with each other. BTS don't have any alarm. Where do look for the cause?
http://s017.radikal.ru/i414/1504/c4/14f8ed1ea7f1t.jpg (http://radikal.ru/fp/4f6e29ff139144158919232e2f15801e)
http://s017.radikal.ru/i408/1504/ad/9ada2b2e373dt.jpg (http://radikal.ru/fp/72d0fe5b20b84f78babaadf14ad83afe)
http://s61.radikal.ru/i171/1504/b5/11c3e410eda4t.jpg (http://radikal.ru/fp/c9f5cad20e794551963eaed60e00b134)