TRANSMITTING INFORMATION USING SEQUENCES WITH CIRCULAR SHIFT Russian patent published in 2011 - IPC H04J11/00 

FIELD: information technology.

SUBSTANCE: first and second sequences can be generated via circular shift a base sequence to a first and a second value, respectively. The base sequence can be a CAZAC (constant amplitude zero auto-correlation), PN (pseudorandom noise) sequence or some other sequence with good correlation properties. Circular shift of the first and second sequences can be defined based on a switching pattern. A first modulated sequence can be generated based on the first sequence and a first modulation symbol, and can then be sent over a first time interval. A second modulated sequence can be generated based on the second sequence and a second modulation symbol, and can then be sent over a second time interval. Each modulated sequence can be sent at K successive subcarriers using a localised frequency division multiplex (LFDM) scheme.

EFFECT: high throughput of the system with transmission of control information.

44 cl, 14 dwg