WIRELESS COMMUNICATION DEVICE AND METHOD OF PACKAGE CONTROL Russian patent published in 2013 - IPC H04J11/00 

FIELD: information technologies.

SUBSTANCE: device consists of the following components: a scrambling unit (214), which multiplies a modulated signal of response to a scrambling code "1" or "-1", in order to invert a package for each of response signals on the cyclic shift axis; an expansion unit (215), which performs primary expansion by the spectrum of the response signal using a ZAC-sequence, installed by a control unit (209); and an expansion unit (218), which performs secondary expansion according to the spectrum of the response signal after it has been exposed to primary expansion, using a block expanding code sequence set by the control unit (209).

EFFECT: improved characteristic of NACK signal error frequency.

6 cl, 15 dwg