| CPC H04W 74/0833 (2013.01) | 20 Claims |

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1. A method performed by a user equipment, comprising:
receiving a first message from a first network node as an encrypted message dedicated to the user equipment, the first message indicating information for at least one network slice in one or more radio network areas, wherein the information of the first message indicates, for each of the one or more radio network areas, how a given network slice is indexed in a second message in a given radio network area;
receiving the second message from a second network node as a broadcasted message, the second message indicating configuration information for one or more network slices, wherein the configuration information of the second message indicates a mapping between different configurations and different network slices, wherein each network slice is identified in the second message by an index specific to the radio network area where the second message is received, and the configuration information of the second message indicates a random access configuration for a given network slice in the radio network area where the second message is received; and
determining a configuration, including the random access configuration, to be used for a given network slice based on combining information of the first and second messages.
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