Patent ID: 8098633

Claim:
A method for bit interleaving, used for bit interleaving of the High Speed Downlink Share CHannel in the High Speed Packet Access Evolution of the Wideband Code Division Multiple Access mobile communication system, wherein the method comprises firstly reading high layer control information containing the modulation scheme and the number of codes, and a procedure of bit interleaving for each code comprises the following steps: (a) Determining the number of rectangular interleavers N Int required to be used according to the modulation scheme; (b) Determining the number of bits U of a single code according to system parameters; (c) Writing respectively in row of U bit data into N Int N row ×N col interleavers after the physical channel segment; (d) Interleaving the data in the N Int N row ×N col interleavers in a manner of block interleaving; (e) Reading bits of the single code in turn from the N Int interleavers, wherein the data in each interleaver is read by column; and (f) Combining the data orderly which are read from the N Int interleavers in each turn into U bits.