3G品質提昇及技術研討會 (1)有關目前PrxLoadMarginDCH參數設定值為10 dB，為避免上鏈負載成長過高，造成過大的細胞呼吸效應， 網維提出修訂建議。經NSN 測試後建議一併調整PrxTarget/PrxOffset、DeltaPrxMaxUP等參數。NSN change the related parameters of the whole network (Due to network activity, RN291, 28, 281, 61, 611, 411 are not changed yet), find that HSDPA Accessibility Failure due to UL-DCH can be improved while there are the increment of BTS and Iub failure due to higher traffic. Please NSN roll out this setting in remaining RNC. And propose the monitor report in the next meeting after roll-out.
細胞呼吸效應---一旦資料傳輸速率或使用人數增加時，則系統話務負擔增加，因此要降低系統負載，就必須縮小細胞涵蓋 區域，換言之，當細胞間的干擾增大，為維持系統容量，實際的細胞涵蓋區域會需要縮小，也就是細胞呼 吸效應。