WIRELESS COMMUNICATION DEVICE Russian patent published in 2011 - IPC H04W76/02 

FIELD: information technology.

SUBSTANCE: upon handover, a mobile station receives, from the movement origin base station, information on the movement destination base station and information relating to a sequence to be used for transmitting a random access signal to the movement destination base station. The mobile station receives a synchronisation channel signal transmitted from the movement destination base station. The mobile station transmits the random access signal to the movement destination base station at a timing offset by a prescribed period from a timing of receiving a synchronisation channel and at a frequency corresponding to that of the synchronisation channel. A position of the timing/frequency used for transmitting the random access signal for the handover is used exclusively by the random access signal transmitted from the mobile terminal for which handover is being performed or is used exclusively at the same time by a plurality of mobile stations for which handovers are performed.

EFFECT: suppression of interference between random access signals transmitted from a plurality of mobile stations to zero or a low level in order increase the percentage of normal reception of random access signals by a handover destination base station, low probability of the random access signal being repeatedly transmitted, and shorter time spent on handover.

10 cl, 10 dwg