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First Radio Network Node (RNN), a Second RNN and Methods Therein for Establishing a Communications Interface between the First RNN and the Second RNN
First Radio Network Node (RNN), a Second RNN and Methods Therein for Establishing a Communications Interface between the First RNN and the Second RNN
Embodiments include methods, performed by a first radio network node (RNN) in a wireless network, to establish a communications interface with a second RNN in the wireless network. Such methods include receiving, from a third RNN in the wireless network, a Transport Network Layer (TNL) address associated with the second RNN. The first and third RNNs are configured for wireless communication with wireless devices via an E-UTRA radio access technology (RAT), and the second RNN is configured for wireless communication via an NR RAT. The third RNN can be a proxy node for discovery of TNL addresses associated with a plurality RNNs configured for wireless communication via the NR RAT. Such methods include establishing the communications interface with the second RNN based on the TNL address received from the third RNN. Other embodiments include complementary methods performed by a second RNN, and RNNs configured to perform such methods.
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