A method, in a wireless communications network including a server node, radio network equipment and a wireless device, the method comprising: at the server node, receiving first user data in response to: the wireless device receiving from the radio network equipment a first downlink signal comprising information indicating a plurality of uplink access configurations, each uplink access configuration including a random access configuration; the wireless device receiving from the radio network equipment a second downlink signal comprising an uplink access configuration index, the wireless device using the uplink access configuration index to identify an uplink access configuration from among the indicated plurality of uplink access configurations, and the wireless device transmitting the first user data to the wireless communications network according to the random access configuration included in the identified uplink access configuration, wherein the first user data corresponds to random access related data and characterized in that the method further comprises, at the server node, in response, initiating transmission of second and third user data, thereby causing the wireless device to: receive from the radio network equipment, in a first downlink subframe, a first Orthogonal Frequency-Division Multiplexing, OFDM, transmission formatted according to a first numerology and carrying the second user data, and receive from the radio network equipment, in a second downlink subframe, a second OFDM transmission formatted according to a second numerology and carrying the third user data, the second numerology differing from the first numerology, wherein the first numerology has a first subcarrier spacing and the second numerology has a second subcarrier spacing, the first subcarrier spacing differing from the second subcarrier spacing. at the server node, receiving first user data in response to: the wireless device receiving from the radio network equipment a first downlink signal comprising information indicating a plurality of uplink access configurations, each uplink access configuration including a random access configuration; the wireless device receiving from the radio network equipment a second downlink signal comprising an uplink access configuration index, the wireless device using the uplink access configuration index to identify an uplink access configuration from among the indicated plurality of uplink access configurations, and the wireless device transmitting the first user data to the wireless communications network according to the random access configuration included in the identified uplink access configuration, wherein the first user data corresponds to random access related data and the wireless device receiving from the radio network equipment a first downlink signal comprising information indicating a plurality of uplink access configurations, each uplink access configuration including a random access configuration; the wireless device receiving from the radio network equipment a second downlink signal comprising an uplink access configuration index, the wireless device using the uplink access configuration index to identify an uplink access configuration from among the indicated plurality of uplink access configurations, and the wireless device transmitting the first user data to the wireless communications network according to the random access configuration included in the identified uplink access configuration, wherein the first user data corresponds to random access related data and characterized in that the method further comprises, at the server node, in response, initiating transmission of second and third user data, thereby causing the wireless device to: receive from the radio network equipment, in a first downlink subframe, a first Orthogonal Frequency-Division Multiplexing, OFDM, transmission formatted according to a first numerology and carrying the second user data, and receive from the radio network equipment, in a second downlink subframe, a second OFDM transmission formatted according to a second numerology and carrying the third user data, the second numerology differing from the first numerology, wherein the first numerology has a first subcarrier spacing and the second numerology has a second subcarrier spacing, the first subcarrier spacing differing from the second subcarrier spacing. receive from the radio network equipment, in a first downlink subframe, a first Orthogonal Frequency-Division Multiplexing, OFDM, transmission formatted according to a first numerology and carrying the second user data, and receive from the radio network equipment, in a second downlink subframe, a second OFDM transmission formatted according to a second numerology and carrying the third user data, the second numerology differing from the first numerology, wherein the first numerology has a first subcarrier spacing and the second numerology has a second subcarrier spacing, the first subcarrier spacing differing from the second subcarrier spacing.