초록 ▼

The present invention time and frequency synchronizes a plurality of private radio base stations operating in the coverage area of a land mobile communications network. The mobile network's control channels are used to derive a reference signal. A mobile terminal uses the reference signal to become

The present invention time and frequency synchronizes a plurality of private radio base stations operating in the coverage area of a land mobile communications network. The mobile network's control channels are used to derive a reference signal. A mobile terminal uses the reference signal to become synchronized both in time and frequency with the mobile network. Any of the private radio base stations that is linked in a traffic connection with the mobile terminal is synchronized with the mobile terminal. Consequently, the private radio base stations are indirectly synchronized with each other and also with the mobile communications network.

대표청구항 ▼

[ What is claimed is:] [1.] A method for synchronizing at least one of a plurality of cordless private radio system base stations with a mobile communications network including a plurality of base stations, each cordless private radio system base station operating independently of the mobile communi

[ What is claimed is:] [1.] A method for synchronizing at least one of a plurality of cordless private radio system base stations with a mobile communications network including a plurality of base stations, each cordless private radio system base station operating independently of the mobile communications network, said method comprising the steps of:transmitting a first message including timing information from the plurality of base stations;tuning a mobile communications terminal to receive the first message having a strongest signal from one base station of the plurality of base stations;receiving said first message of the one base station at the mobile communications terminal;synchronizing said mobile communications terminal with said first message;transmitting a second message including said timing information from said mobile communications terminal;receiving said second message at said at least one of the plurality of cordless private radio system base stations; andsynchronizing said at least one of the plurality of cordless private radio system base stations in accordance with said second message.