THE CODING METHOD, APPLICATION METHOD AND CODING DEVICE OF EXTENDED FREQUENCY MULTIADDRESS

摘要

The invention provides a coding method, application method and coding device of extended frequency multiaddress, it relates to the wireless communications fields of extended frequency and code division multiple address (CDMA); repeats the elements on each of the sequence bits in the initial orthogonal sequence group by means of selecting the any orthogonal sequence group as the initial orthogonal sequence group, and then obtains another sequence group, obtains a subcode portion of the DOC code by means of multiplying the each subcode in another subcode portion by each bit of the switching sequence Q one by one, obtains another subcode portion of the DOC code by means of multiplying the each subcode in the subcode portion by each bit of the switching sequence I one by one; obtains the DOC code group by means of combining the subcode portion; since the invention can obtain the enough code groups, it's possible to average the disturbs that go through the different users by means of applying the form of skip code or disturb code; the said coding device of extended frequency multiaddress of the invention can produce the DOC code.