| 摘要 |
<p>The invention relates to a method of using a frequency spectrum of a time division duplex (TDD) radio system. Such systems encounter interferences when servicing users with frequencies at the edges of the used frequency spectrum. These interference signals stem from users of other TDD systems being serviced in adjacent frequencies, whereby the other TDD system is not synchronized with the own TDD systems. It is suggested to use an upper guard band 6 and a lower guardband 7 at the edges of the used frequency spectrum F1 to avoid this problem. If interferences are reduced with other measures the guardbands can be reused for a backhauling between the base stations and their core network minimizing hardware requirements for the last mile.</p> |
