CODE GENERATING METHOD AND CODE SELECTING METHOD

摘要

A code generating method by which an orthogonal code having diffusivity larg er than the original diffusivity is generated by combining an orthogonal code f or CDMA having a specific diffusivity with another orthogonal code which is obtained by inverting the polarity of the orthogonal code for CDMA. A code selecting method by which a user using an orthogonal code having a small diffusivity can generate an orthogonal code having diffusivity smaller than diffusivity of an orthogonal code for CDMA having a specific diffusivity by combining the orthogonal code for CDMA with another orthogonal code which is obtained by inverting the polarity of the orthogonal code for CDMA and assig n the generated orthogonal code.