CONTROLLING MOBILE TERMINAL TRANSMISSION DURING GROUP CALLS Russian patent published in 2011 - IPC H04W36/18 

FIELD: information technology.

SUBSTANCE: mobile terminal of a digital cellular radio communication system, which is in receiving phase during a group call, when moving in the current cell for the fixed network element of the system, identifies the assignment cell among a plurality of N cells neighbouring the current cell. The mobile terminal transmits the identification sequence of the assignment cell during the time interval of the channel for transmitting input signals, which is a channel making up the conflict subject. The identification sequence contains a given identification structure among a given number P of identification structures of different corresponding values. Values of identification structures P are such that they correspond to mutually orthogonal modulated signals.

EFFECT: possibility of handover without interrupting a call for reception terminals participating in a group call.

12 cl, 4 tbl, 8 dwg