UE Context Handling in Disaggregated Radio Access Node
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsElena Myhre, Walter Müller
Life of this patent
Estimating the term…
Abstract
The invention refers to a method performed by a radio network node (200), wherein the radio access network comprises a central unit, CU (220), and a distributed unit, DU (210), comprising obtaining (502) one or more criteria for determining a preferable location for a UE context controller in the radio access network node, the UE context controller managing a connection between a UE (100) and the radio access network node (200); and determining (504), based on the one or more criteria, whether the UE context controller shall be located in the CU (220) and/or in the DU (210). The invention further related to a corresponding radio network node (200).
Claims17
1-17. (canceled)
A method performed by a radio access network node, wherein the radio access network node comprises a central unit (CU) and a distributed unit (DU), the method comprising:
- obtaining one or more criteria for determining a preferable location for a UE context controller in the radio access network node, the UE context controller managing a connection between a UE and the radio access network node;
- and
- determining, based on the one or more criteria, whether the UE context controller shall be located in the CU and/or in the DU.
A radio access network node, wherein the radio access network node has a central unit (CU) and a distributed unit (DU), the radio access network node comprising:
- processing circuitry;
- memory containing instructions executable by the processing circuitry whereby the radio network node is operative to:
- obtain one or more criteria for determining a preferable location of a UE context controller in the radio access network node, the UE context controller managing a connection between a UE and the radio access network node;
- and
- determining, based on the one or more criteria, whether the UE context controller shall be located in the CU and/or in the DU.
The radio access network node of claim 16, wherein the CU is configured to perform:
- transmitting a UE Context Rearrangement Request to the DU;
- receiving, from the DU, a UE Context Rearrangement Response;
- initiating establishing a UE context in both the CU and the DU, with the DU being the context responsible;
- establishing a condition monitoring;
- deciding, based on a condition monitoring, to move the context controlling responsibility to the CU;
- transmitting, to the DU, a UE context rearrangement request to move the responsibility to the CU;
- receiving, from the DU, a UE context rearrangement response;
- and
- assuming UE context controlling responsibility.
Dependencies are inferred from the claim text.