Controlling execution of conditional mobility procedures in wireless communication

1 . An apparatus comprising:

at least one processor; and

at least one memory including computer program code, the at least one memory and the computer program code being configured to, with the at least one processor, cause the apparatus to perform:

controlling execution of a plurality of conditional mobility procedures, the plurality of conditional mobility procedures comprising a first conditional mobility procedure comprising a first configuration initiated by a first network node, and a second conditional mobility procedure comprising a second configuration initiated by a second network node,

wherein controlling the execution of the plurality of conditional mobility procedures comprises controlling sequential execution of the first and second conditional mobility procedures-based on the first configuration and the second configuration,

wherein controlling the sequential execution is based on dependency of the second configuration on a source configuration, and

wherein the first configuration is configured to change the source configuration.

2 . The apparatus of claim 1 , wherein the at least one memory and the computer program code are configured to, with the at least one processor, further cause the apparatus to enable the sequential execution of the first and second conditional mobility procedures is the second configuration is a full configuration.

3 . The apparatus of claim 1 , wherein the at least one memory and the computer program code are configured to, with the at least one processor, further cause the apparatus to enable the sequential execution of the first and second conditional mobility procedures with release of the second configuration based on the second configuration being a delta configuration with respect to the source configuration.

4 . The apparatus of claim 3 , wherein the at least one memory and the computer program code are configured to, with the at least one processor, further cause the apparatus to enable the sequential execution of the first and second conditional mobility procedures with release of the second configuration based on whether release of the second configuration is acceptable, wherein whether the release of the second configuration is acceptable is dependent on a bearer mapping of the second configuration.

5 . The apparatus of claim 1 , wherein the at least one memory and the computer program code are configured to, with the at least one processor, further cause the apparatus to enable the sequential execution of the first configuration and the second configuration in dependence on the second configuration containing a same configuration as the source configuration.

6 . The apparatus of claim 5 , wherein the at least one memory and the computer program code are configured to, with the at least one processor, further cause the apparatus to enable the sequential execution of the first configuration and the second configuration in dependence on the second configuration containing the same configuration as the source configuration and satisfying a user equipment capability split condition.

7 . The apparatus of claim 1 , wherein the second conditional mobility procedure comprises a plurality of target configurations associated with different target nodes, and not all of the target nodes allow sequential execution of the first and second conditional mobility procedures, and

wherein the apparatus the at least one memory and the computer program code are configured to, with the at least one processor, further cause the apparatus to enable the sequential execution of the first and second conditional mobility procedures when allowed by a set ‘N’ of one or more of the target nodes that are most likely to satisfy a trigger condition of the second conditional mobility procedure.

8 . The apparatus of claim 1 , wherein the second conditional mobility procedure is a conditional master node handover procedure prompted by a reconfiguration message initiated by the second network node,

wherein the second network node is a source master node,

wherein the reconfiguration message from the second network node comprises:

a set of one or more target configurations associated with different target master nodes;

a set of one or more handover triggering conditions; and

the second configuration comprising a target secondary cell group configuration,

wherein the first conditional mobility procedure is a conditional primary secondary cell change procedure prompted by a reconfiguration message initiated by the first network node,

wherein the first network node is a secondary node, and

wherein the reconfiguration message from the first network node comprises a set of one or more primary secondary cell configurations including the first configuration.