FIELD: communications engineering, in particular, technology for transferring service in mobile communications system and for identification of boundary of cell for transferring equipment between various mobile communication systems.
SUBSTANCE: mobile terminal identifies boundary of mobile communication system cell, supporting asynchronous system, for transferring service between various communication systems. For this, base boundary setting station determines anew the code words for denoting boundary, different from existing code words, utilized for reaching frame synchronization, and transfers one of code words for denoting boundary in each frame along secondary synchronization channel. When receiving code word for denoting boundary along secondary synchronization channel, mobile terminal recognizes, that it is positioned at the limit of mobile communication network, supporting asynchronous system, and performs transfer of service to mobile communication network, supporting synchronization scheme.
EFFECT: possible identification and differentiation of cell boundaries.
4 cl, 5 dwg
