- METHOD FOR ANALYZING ERLANG CAPACITY OF DS-CDMA SYSTEM AND OPERATION METHOD THEREOF

摘要

The present invention relates to an Erlang capacity analysis method and a method of operating the DS-CDMA system, which supports voice and data services, uses multiple carriers per sector, and evenly distributes traffic density per sector. In the disclosed Erlang capacity analysis method, voice and data call blocking is performed in consideration of call blocking due to a lack of available traffic channels in each sector and call blocking due to a lack of a channel element (CE) available in a base station. Calculating a probability, and calculating Erlang capacity per sector as a set of input traffic loads of respective service groups satisfying the QoS and GoSs required for the voice and data call blocking probability; Considering the limitations of the channel element (CE) at the base station as well as the limitations of, the accuracy of Erlang capacity analysis is improved. There is an advantage that the amount of computation required to calculate the probability of call blocking is significantly reduced in proportion to the square of the number of carriers used.