SHARED SIGNALLING CHANNEL Russian patent published in 2014 - IPC H04J14/02 

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to communication engineering and can be used in an orthogonal frequency division multiple access (OFDMA) communication system. The signalling channel is used to provide signalling, acknowledgement and power control to access terminals within the system. The shared signalling channel can be assigned to a predetermined number of sub-carriers within any cycle. The assignment of a predetermined number of sub-carriers to the shared signalling channel establishes a fixed bandwidth overhead for the channel. The actual sub-carriers assigned to the channel can be varied periodically, and can vary according to a predetermined frequency hopping schedule. The amount of signal power allocated to the signalling channel can vary on a per symbol basis depending on the power requirements of the communication link. The shared signalling channel can direct each message carried on the channel to one or more access terminals. Unicast messages allow the channel power to be controlled in accordance with the needs of individual communication links.

EFFECT: high transmission channel throughput.

23 cl, 5 dwg