DEVICE AND METHOD FOR CHANNEL ALTERNATION IN COMMUNICATION SYSTEM Russian patent published in 2009 - IPC H03M13/27 H04L1/00 

FIELD: physics; communication.

SUBSTANCE: invention concerns wireless communication and, in particular, to channel alternation for the communication systems representing broadcast/mass mailing services. The device and method for alternation of regular bits and parity bits for generation of output sequence which is transmitted in multi-slot packages from base station to remote station in wireless communication system are offered. The device contains a memory cell and a control element linked to the memory cell, and the control element is configured in such way to demultiplex regular bits and parity bits in sequence, thus regular bits and parity bits are consistently distributed among sequences. The control element is also configured to rearrange sequences on the basis of index set to group sequences in segments and to alternate each of segments, forming matrixes with elements. The control element is also configured to modulate elements of matrixes and to reject the modulated elements of each matrix so to make output sequence which contains the rejected modulated elements from each matrix.

EFFECT: maintenance of effective transmission of large data amount from one source to group of users in wireless communication systems.

55 cl, 6 dwg, 4 tbl