Ok thx 4 the reply.
but the real problem is to make a proposition for a design of a LAC couverture. that design have to be function of equipment (paging capacity of the BSC and/or the BTS)I have to do my work like if I don’t know ALL OF what is existing. The real meanning of this proposition is not to resolve the existing problems but to propose a new design that can be usefull for all. If I can have informations relatives to SIEMENS or ALCATEL or another one that can help me I think. Thanks and please make me know what I have to do cause my time is ending.