Handover procedure
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsPeter Ramle, Josefin Karlsson, Lasse Olsson
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a method for handover of a User Equipment (UE), performed by a target Next Generation (NG) Core Control Function (CCF) operative in a core network, the method comprising: receiving a request; and sending an indication of a temporary UE identifier, a Tracking Area Identity (TAI) list, and/or an allowed area. Also, for implementing the method, disclosed herein are corresponding control plane NG CCF, UE, computer program, and computer program products.
Claims18
A method for handover of a user equipment (UE), performed by a target control plane next generation (NG) core control function (NG CCF) operative in a core network, the method comprising:
- receiving a request;
- and
- sending an indication of a temporary UE identifier, a Tracking Area identity (TAI) list and/or an allowed area.
A method for handover of a user equipment (UE), performed by a control plane next generation (NG) core control function (NG CCF) operative in a core network, the method comprising:
- receiving a path switch request from a radio access network (RAN);
- and
- sending a path switch request acknowledgement to the RAN, including a Global Unique Temporary Identity (GUTI) reallocation command message.
A method for handover of a user equipment (UE), performed by the UE, the method comprising:
- receiving a handover command including a temporary UE identifier, a Tracking Area (TA), a TA identity (TAI) list and/or an allowed area;
- and
- sending a handover confirmation.
A method for handover of a user equipment (UE), performed by a source control plane next generation (NG) core control function (NG CCF) operative in a core network, the method comprising:
- receiving a target global unique temporary identity (GUTI), a Tracking Area identity (TAI) list and/or an allowed area from a target NG CCF;
- and
- sending a handover command including the target GUTI, a Tracking Area (TA), a TAI list and/or an allowed area to a source radio access network (RAN).
A method for handover of a user equipment (UE), performed by a source radio access node (RAN) operative in a network, the method comprising:
- receiving a handover command including a target global unique temporary identity (GUTI), a Tracking Area (TA), a TA identity (TAI) list and/or an allowed area from a source control plane next generation (NG) core control function (NG CCF);
- and
- sending a handover command including the target GUTI, a TA, TAI list and/or an allowed area to a UE.
A method for handover of a user equipment (UE), performed by a target radio node operative in a network, the method comprising:
- receiving a handover confirm including an indication of tracking area update (TAU) complete from a UE;
- and
- sending a handover notify including the indication of TAU complete to a target control plane next generation (NG) core control function (NG CCF).
Dependencies are inferred from the claim text.