ACTIVE CODE CHANNEL DETECTING APPARATUS AND METHOD IN CDMA CODE DOMAIN ANALYSIS SYSTEM, CODE DOMAIN ANALYSIS SYSTEM INCLUDING THE SAME APPARATUS AND CODE DOMAIN ANALYSIS METHOD INCLUDING THE SAME METHOD

摘要

PURPOSE: An active code channel detecting apparatus and method in a CDMA code domain analysis system, a code domain analysis system including the same apparatus and a code domain analysis method including the same method are provided to quickly and accurately detect actual active code channel information without communicating with a base station. CONSTITUTION: A correlation calculator(202) calculates correlation values of each symbol with respect to an arbitrary orthogonal code channel. A code channel power calculator(204) calculates a power value with respect to an arbitrary orthogonal code channel. A correlation variance calculator(206) calculates a variance value by using distribution of absolute values of correlation values of orthogonal code channels. An actual active channel determining unit(208) determines whether a specific channel is an actual active channel based on whether the calculated power value is greater than a threshold power value and whether the calculated variance value is smaller than a certain threshold variance value.