Abstract: It is herein disclosed a wireless device, first and second radio network nodes and methods performed therein for communication. A method performed by a first radio network node for determining a global identity of a second radio network node which is a neighbour of the first radio network node is provided. The method comprises one or more of: receiving length information which specifies a length of the global ID of the second radio network node, from a wireless device which is served by the first radio network node; and determining the global ID of the second radio network node based on the length information.

Abstract: A network node (700) of a radio access network (RAN) of a wireless communication network (10) provides user plane security by establishing a secure tunnel between first and second tunnel endpoints (160, 180, 370, 195, 220, 230) that will handle respective protocol layers of a same protocol stack for a Data Radio Bearer (DRB) (330, 340, 350, 360) that is dedicated to user plane traffic and has yet to be established. Establishing the secure tunnel comprises exchanging an inner Internet Protocol (IP) address and an outer IP address of each of the endpoints (160, 180, 370, 195, 220, 230) between the endpoints (160, 180, 370, 195, 220, 230).

Abstract: Embodiments include methods for configuring a first node of a first radio access technology (RAT) in a radio access network (RAN), for dual connectivity toward a user equipment with nodes of a second RAT in the RAN. Such methods include receiving, from a DNS server, an address of a first node of the second RAT, which is configured to act as an address request proxy for nodes of the first RAT. Such methods include, based on the received address, establishing a first connection with the first node of the second RAT. Such methods also include receiving a third request to set up a second connection with a second node of the second RAT, and sending, to the second node a fourth request, to the second node (e.g., in response to the third request), for the second node to act as address request proxy for the first node of the first RAT.

Abstract: A network node (700) of a radio access network (RAN) of a wireless communication network (10) provides user plane security by establishing a secure tunnel between first and second tunnel endpoints (160, 180, 370, 195, 220, 230) that will handle respective protocol layers of a same protocol stack for a Data Radio Bearer (DRB) (330, 340, 350, 360) that is dedicated to user plane traffic and has yet to be established. Establishing the secure tunnel comprises exchanging an inner Internet Protocol (IP) address and an outer IP address of each of the endpoints (160, 180, 370, 195, 220, 230) between the endpoints (160, 180, 370, 195, 220, 230).

Abstract: Embodiments include methods for configuring a first node of a first radio access technology (RAT) in a radio access network (RAN), for dual connectivity toward a user equipment with nodes of a second RAT in the RAN. Such methods include receiving, from a DNS server, an address of a first node of the second RAT, which is configured to act as an address request proxy for nodes of the first RAT. Such methods include, based on the received address, establishing a first connection with the first node of the second RAT. Such methods also include receiving a third request to set up a second connection with a second node of the second RAT, and sending, to the second node a fourth request, to the second node (e.g., in response to the third request), for the second node to act as address request proxy for the first node of the first RAT.

Abstract: It is herein disclosed a wireless device, first and second radio network nodes and methods performed therein for communication. A method performed by a first radio network node for determining a global identity of a second radio network node which is a neighbour of the first radio network node is provided. The method comprises one or more of: receiving length information which specifies a length of the global ID of the second radio network node, from a wireless device which is served by the first radio network node; and determining the global ID of the second radio network node based on the length information.