MODEM FOR MULTI-DIRECTIONAL COMMUNICATION Russian patent published in 2019 - IPC H04L29/00 H04L29/02 H04B7/05 

FIELD: radio engineering and communications.

SUBSTANCE: invention relates to radio engineering and is intended for use in mobile and mobile communication systems. Technical result is achieved due to modem for multidirectional communication, consisting of control device, transmitting part and receiving part.

EFFECT: operation of a modem in low-speed mode with code expansion, while maintaining the possibility of transmitting service voice communication and control of subscriber stations via telemetry and control channels in conditions of unfavorable interference environment, in conditions of limited allocated frequency band, as well as in communication establishment mode, when transmission of user data with preset rate is impossible, and realization of possibility of multichannel transfer of user data, service communication, telemetry data and telecontrol.

1 cl, 1 dwg