Forward-link traffic/paging-channel interleaving for communication systems based on closed-form expressions

Interleaving of forward-link paging or traffic channels is performed by implementing closed-form expressions that are equivalent to the table-based processing specified in the cdmaOne telecommunication specification. The implementation can be in either hardware or software or a combination of both. For each cdmaOne forward-link paging or traffic channel, the closed-form expression relates each un-interleaved symbol position to a corresponding interleaved symbol position, which is used to generate an interleaved symbol stream from the un-interleaved symbol stream. In one hardware implementation, the forward-link interleaver of the present invention has an address generation unit made from a modulo counter, a multiplier, and an adder.