A、(業(yè)務(wù)信道的話務(wù)量-A接口話務(wù)量)/A接口話務(wù)量×100%
B、(WALSH碼的話務(wù)量-A接口話務(wù)量)/A接口話務(wù)量×100%
C、[業(yè)務(wù)信道承載的ERL(含切換)-業(yè)務(wù)信道承載的ERL(不含切換)]/業(yè)務(wù)信道承載的ERL(不含切換)×100%
D、[業(yè)務(wù)信道承載的ERL(含切換)-業(yè)務(wù)信道承載的ERL(不含切換)]/業(yè)務(wù)信道承載的ERL(含切換)×100%