Patent ID: 6819661
Filing Date: 2004-11-16
Classification: H04W,Y02D

Abstract:
A method for transmitting data signals to one or more mobile stations through a TDMA radio channel which is divided into recurring rounds of slots, the method comprising the steps of:(a) defining in every round at least one starting slot for a mobile station, each starting slot being located at the same slot position in each round; (b) transmitting slot assignment information to the mobile station, using a common starting slot assigned commonly to a group of mobile stations including the mobile station, in order to notify the defined at least one starting slot to the mobile station; and (c) transmitting a data signal of a variable length to the mobile station, using one or more physically consecutive slots beginning with one of the defined at least one starting slot, wherein the mobile station only monitors, in each round, the defined at least one starting slot and the common starting slot and, when any one of the defined at least one starting slot carries a data signal addressed to it, receives the data signal from one or more physically consecutive slots beginning with the one of the at least one starting slot.