Two applications were received for the licence, which expires on May 20, and Ofcom decided to award it to the incumbent licensee, which is Tristar Broadcasting Ltd (broadcasting as Time 106.6).
Time 106.6 began broadcasting 20 years ago this May, having started life as Star FM.
The station still has many of its original presenters, including Paul Owens and Philip Chryssikos.
Programme director Paul said: "Thank you for all your loyal dedication and support over the years - here's to the next seven years."
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The Met Office has issued a yellow alert for Windsor and Maidenhead, Slough and Wokingham, warning that rain moving eastwards across the south of the country may turn to snow in some places.