MOBILE COMMUNICATION SYSTEM

摘要

PURPOSE:To attain communication with high quality similarly as an MSS having a large transmission power even in an MSS having a small transmission power by installing plural slave base stations with small transmission power in an area in service of a main radio base station of a large transmission power. CONSTITUTION:A communication line between the main radio base station MBS and a mobile communication exchange station AMS is the same form as that of a conventional system, but a part (or all) of them is connected with a slave radio base station PRS and a mobile station MSS 27 with a large transmission power communicates with an MBS 15 only. On the other hand, an MSS 28 of a small transmission power selects a nearby PRS among PRSes 17-21 to apply communication. However, the MSS 28 with small transmission power located near the MBS 15 makes communication while the transmission power of the MBS 15 is reduced from the maximum value. Since the MSS 28 with a small transmission power always makes communication with a PRS (or MBS) located in the vicinity, excellent communication is ensured even with a small transmission power.