Patent ID: 7224683

Claim:
A method of radio communications between a base station and mobile terminals, wherein at least one carrier frequency is apportioned to timeslots, and logical channels are formed between the base station and mobile terminals to support services in connection with said mobile terminals, each of said logical channels consisting of recurring timeslots allocated to at least one mobile terminal on said carrier frequency, the method comprising the following steps to implement one of said services which involves transmission of periodically updated information: selecting a recurrence frequency from a plurality of possible values, as being substantially the inverse of the updating period for said information; forming a logical channel between the base station and a mobile terminal by allocating timeslots having the selected recurrence frequency on the carrier frequency, wherein the recurrence frequency of the timeslots is selected from a set of values of the form 1/T k where k is a positive integer and T k+1 /T k is an integer for any k, T 1 being a basic timeslot periodicity on the carrier frequency and wherein each periodicity T k with k≧1 is an integer multiple or a divider of a superframe period equal to the smallest common multiple of a first frame period defined for the time-division sharing of said carrier frequency and of a second frame period defined for the time-division sharing of another carrier frequency supporting traffic channels; and transmitting said periodically undated information in said logical channel.