Autonomous inter Base Station synchronisation via a common broadcast control channel

Xavier Lagrange (1) , Philippe Godlewski (2)

1 ENST - Ecole Nationale Supérieure des Télécommunications
2 LTCI - Laboratoire Traitement et Communication de l'Information

The aim of this work is to study a mutual synchronisation technique between Base Stations (BS)which operates over the air. First, the different possible structures for broadcast control channels (BCCH) are presented with their main functionnalities. A structure of a common BCCH for a group of BSs sharing the same carrier with time multiplexing is proposed. This common BCCH may be used to provide synchronisation. Existing mutual synchronisation algorithms are then reviewed. For such algorithms, each BS combines measurements (estimated time offset) from neighbouring BSs to determine its own time phase. Computer simulations based on a TDMA system are used to evaluate stability and convergence speed of the algorithm.

Domaines: Base de données [cs.DB]

Xavier Lagrange, Philippe Godlewski. Autonomous inter Base Station synchronisation via a common broadcast control channel. 44th IEEE Vehicular Technology Conference, Jun 1994, Stockholm, Suède. pp.1050 - 1054, ⟨10.1109/VETEC.1994.345252⟩. ⟨hal-02295380⟩