FIELD: information technology.
SUBSTANCE: synchronisation control method in a communication system having a mobile station working in intermittent reception mode and a base station comprises the following steps: step (S103) where the base station generates a synchronisation request upon arrival of data addressed to the mobile station (S101); step (S103) where the mobile station receives the synchronisation request from the base station, step (S105) where the mobile station transmits feedback information in response to the synchronisation request; step (S105) where the base station receives the feedback information, and step (S107) where the base station measures signal propagation delay time using time instances when it receives feedback information.
EFFECT: preventing loss of synchronisation in an uplink between a base station and a mobile station working in intermittent reception mode.
8 cl, 7 dwg
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