The present invention relates to Method for controlling medium access in a mesh network comprising the following steps: a station of the network receiving a Network Allocation Vector (NAV) setting frame indicating a period of time during which the station cannot access the medium, - the station setting a Network Allocation Vector expiration timer based on the received setting frame, the station detecting a least one reservation made by two other stations in the network, and setting a respective Reservation Allocation Vector (RAV) expiration timer based on the duration of the detected reservation, and storing the identity of the two stations as owners of the reservation, the station updating the NAV expiration timer as the latest of the NAV expiration time of the NAV setting frame and all set respective RAV expiration timers.