個人意見。先看它們公式：
PDCH分配成功率= 100-100*CELLGPRS.PCHALLFAIL/CELLGPRS.PCHALLATT
下行TBF建立成功率= 100-100*CELLGPRS.FAILDLTBFEST/CELLGPRS.DLTBFEST
參數(shù)解釋：PCHALLFAIL：Packet Channel Allocation Failure per cell (PCHALLFAIL). The counter value is incremented when a PDCH allocation request is done and there are no channels available in the cell to be allocated for PDCHs.
FAILDLTBFEST ：The counter FAILDLTBFEST counts the number of DL TBF establishment attempts failed due to one or several of the following reasons: Channel fault, Channel preemption, No channels available, Lack of TFIs, Lack of MS individuals, Congestion in MAC, Congestion due to CP load regulation.
即TBF建立失敗包括了PDCH分配失敗的這項。