Patent attributes
A wireless device receives, from a first base station, at least one radio resource control configuration message that includes, at least configuration parameters of: first bearer(s) of a first session and second bearer(s) of a second session; and non-access stratum information indicating that the second session is for: applying session duplication of downlink packets of the first session; and not applying session duplication of uplink packets of the first session. The uplink packets and the downlink packets are communicated via the first bearer(s) of the first session. Based on the non-access stratum information: the session duplication for transmission of packets via the at least one second bearer of the second session is not applied; and duplication of the downlink packets of the first session with the session duplication are received via the at least one second bearer of the second session.