Patent ID: 6646579
Filing Date: 2003-11-11
Classification: H04B,H04J

Abstract:
Method for generating an OVSF code word from code tree index data (i, j) associated with a particular OVSF code within an OVSF code tree,where a first code tree index data item (i) indicates the spreading factor SF of the OVSF code, and a second code tree index data item (j) indicates the position of the OVSF code among the OVSF codes having the same spreading factor SF within the OVSF code tree, the method having the following steps: a) a calculation index is calculated on the basis of the second code tree index data item (j); b) the calculated calculation index is buffered as a binary data word having a plurality of data bits; c) the data word length N of the calculation index data word is calculated; d) the significant data bits of the calculation index data word are interchanged bit by bit in order to form a calculation base B; e) the calculation base B is logically combined with a counting variable Z in order to form a logically combined data word; f) the logically combined data word is logically reduced in order to generate the OVSF code word.