Network slice selection

A method for controlling a network node configured for use as an Access and Mobility Management Function, AMF, of a telecommunications network, the AMF for controlling network slice assignment to a user equipment, UE, within the telecommunications network, and the method comprising:

• receiving, by a receiver, a UE request originating from the UE, the UE request being any one of a registration request and a session request;
• controlling a transmitter, by a network slice requester 04-64, to transmit a network slice selection request to a Policy Control Network Slice Selection function, PC_NSS;
• receiving, by the receiver from the PC_NSS, network slice data identifying a network slice assignable for the UE, and a corresponding network slice routing rule identifying the assignable network slice and a set of network functions forming the assignable network slice;
• and
• controlling, by a network slice manager, assignment of a network slice to the UE in dependence on the received network slice data and network slice routing rule.

A network node configured for use as a Policy Control Network Selection function, PC_NSS, of a telecommunications network, the PC_NSS for selecting one or more network slices assignable for a UE within the telecommunications network, the network node comprising:

• a receiver configured to receive a network slice selection request from an Access and Mobility Management Function, AMF;
• a selection data manager configured to determine selection data specifying at least one UE specific parameter affecting network slice selection;
• a network slice selector configured to select a network slice assignable for the UE, based on the selection data, and to determine network slice data identifying the assignable network slice and a corresponding network slice routing rule identifying the assignable network slice and a set of network functions forming the assignable network slice;
• and
• the network slice selector is being further configured to control a transmitter to transmit to the AMF the network slice data and the corresponding network slice routing rule for controlling assignment of a network slice for the UE based on the network slice data and network slice routing rule.

A method for controlling a network node configured for use as a Policy Control Network Selection function, PC_NSS, of a telecommunications network, the PC_NSS for selecting one or more network slices assignable for a UE within the telecommunications network, the method comprising:

• receiving, by a receiver, a network slice selection request from an Access and Mobility Management Function, AMF;
• determining, by a selection data manager, selection data specifying at least one UE specific parameter affecting network slice selection;
• selecting, by a network slice selector, a network slice assignable for the UE, based on the selection data, and determining, by the network slice selector, network slice data identifying the assignable network slice and a corresponding network slice routing rule identifying the assignable network slice and a set of network functions forming the assignable network slice;
• and
• controlling a transmitter, by the network slice selector, to transmit to the AMF the network slice data and the corresponding network slice routing rule for controlling assignment of a network slice for the UE based on the network slice data and network slice routing rule.