Said invention refers to wireless resource occupying algorithm of data grouping service. It contains selecting one service from data grouping service as basic service, calculating each service relatively wireless resource intensity, based on based on selected basic service utilizing each service resource intensity doing weighted average to each service volume, mixing to one virtual mixed service, to obtain virtual mixed service total amount, then utilizing Erlang C method to satisfy certain of QoS required virtual channel number, and then to obtain grouped data service required occupied channel number. Utilizing similar method, said invention can obtain occupied channel number for satisfying certain of blocking rate circuit switching service required. Thereby, it can proceed evaluation to wireless communication systematical wireless resource occupied status including circuit switching domain and grouping exchange domain. Said invention has advantages of leading-in virtual mixed service total amount, thereby in consideration of data grouping service delay and retransmission. |