Patent ID: 6683862
Filing Date: 2004-01-27
Classification: H04W

Abstract:
A virtual pilot channel generating apparatus for supporting effective hand-off between frequencies in a CDMA mobile communications system, the apparatus comprising:source supplying means for supplying a source required for generating a virtual pilot channel; a splitter for splitting information on the source provided by the source supplying means into a plurality of signals, the splitter being connected to the signal output port of the source supplying means, wherein the splitter is a 6-way splitter which splits a signal transmitted from a sector board interface card transmission path section into six signals, and the apparatus employs six virtual pilot channel generators for generating six virtual pilot channel signals using the six signals divided by the splitter; and a plurality of signal generating sections for receiving the plurality of signals divided by the splitter and generating different frequency signals, the signal generating sections being connected to the signal output port of the splitter, wherein each of the plurality of signal generating sections comprises a local frequency information providing section for providing a local frequency generating section with information about a local frequency to be changed, which is information about CDMA allocation frequencies used by other base stations; local frequency generating section for generating a local frequency for creating a desired CDMA allocation frequency using the information provided by the local frequency information providing section, and transmitting it to a frequency up-converting section; and frequency up-converting section for generating said virtual pilot channel using a source signal supplied from the sitter and the local frequency generated by the local frequency generating section.