CDMA mobile communications apparatus and base station detecting method used therefor

The CDMA mobile communication apparatus, having a function of detecting a base station which is a direct connection partner by synchronizing the base station at slot timing and frame timing in this order by stepwise detecting a physical channel for constant transmission from the base station, and by identifying a Scrambling Code used in the base station, comprising:

• first selection means for selecting noise and effective slot timing for a peak correlation value at which the slot timing synchronization is performed;
• and
• second selection means for selecting a relatively large correlation value and a relatively small correlation value for the selected significant slot timing,
• wherein said relatively large correlation value and said relatively small correlation value are appropriately selected at an optimal ratio to synchronize the frame timing and identify the Scrambling Code, and
• wherein said relatively large correlation value and said relatively small correlation value are alternately selected to synchronize the frame timing and identify the Scrambling Code.

A base station detecting method for use with a CDMA mobile communications apparatus having a function of detecting a plurality of base stations which are possible direct connection partners by synchronizing each of the base stations at slot timing and frame timing in this order by stepwise detecting a physical channel for constant transmission from the base station, and by identifying a Scrambling Code used in the base station, comprising:

• a first step of selecting noise and significant slot timing for a peak correlation value at which the slot timing synchronization is performed for each of the plurality of base stations;
• and
• a second step of selecting a relatively large correlation value and a relatively small correlation value for the selected significant slot timings,
• wherein said relatively large correlation value and said relatively small correlation value are appropriately selected at an optimal ratio to synchronize the frame timing and identify the Scrambling Code used in a base station, and
• wherein the relatively large correlation value and the relatively small correlation value are alternately selected to synchronize the frame timings and identify the Scrambling Codes used by the plurality of base stations, respectively.