초록 ▼

In a cellular mobile radio system, co-channel radio base stations are provided with a time reference signal being a synchronizing signal or a time reference from another co-channel radio base station. Each co-channel radio base station is also provided with a radio base station specific time offset

In a cellular mobile radio system, co-channel radio base stations are provided with a time reference signal being a synchronizing signal or a time reference from another co-channel radio base station. Each co-channel radio base station is also provided with a radio base station specific time offset differing between the co-channel radio base stations by at least a predetermined value which prevents known sequences in desired signals and known sequences in interfering signals from overlapping in a disturbing way at reception. In each co-channel radio base station, the time reference signal and the radio base station specific offset are used for the timing of sending bursts downlink from the co-channel radio base stations towards mobile radio stations. Each radio base station has functions receiving the time reference signal, storing the time offset and using the time reference signal and the time offset for the timing of the burst termination on the downlink.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method in a cellular mobile radio system including a plurality of radio base stations and mobile radio stations,said radio base stations using, as units of transmission, bursts organized in groups, each group forming a frame of the type used by a Time Division Multipl

[ What is claimed is:] [1.]1. A method in a cellular mobile radio system including a plurality of radio base stations and mobile radio stations,said radio base stations using, as units of transmission, bursts organized in groups, each group forming a frame of the type used by a Time Division Multiple Access (TDMA) system, and each burst containing a known sequence of data bits,at least two of the radio base stations being co-channel radio base stations employing a same frequency,said method comprising the steps ofproviding the co-channel radio base stations with a time reference signal being a synchronizing signal or a time reference from another co-channel radio base station,providing each co-channel radio base station with a radio base station specific time offset differing between the co-channel radio base stations by at least a predetermined value which prevents known sequences in desired signals and known sequences in interfering signals from overlapping in a disturbing way at reception, andusing in each co-channel radio base station the time reference signal and the radio base station specific offset for the timing of sending bursts downlink from the co-channel radio base stations towards mobile radio stations.