| 摘要 |
PROBLEM TO BE SOLVED: To achieve a soft hand-off in which a subscriber terminal in a radio system has a simultaneous connection to more than one base stations regardless of delay in a radio system. SOLUTION: The invention relates to a cellular radio system comprising base stations and at least one vocoder, in which the base stations and the vocoder transmit to each other a signal, the base stations transmit signals to the vocoder substantially simultaneously, and wherein the vocoder receives the substantially simultaneously transmitted signals at different moments of reception, the cellular radio system comprising measuring means for measuring the delay difference between the different moments of reception of the signals received by the vocoder, and delaying means for delaying, if required, the signals to be transmitted to the base stations in such a way that the base stations receive the signals transmitted by the vocoder substantially simultaneously. COPYRIGHT: (C)2009,JPO&INPIT
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