Enhancements to MRO in case of RLF after successful (conditional) handover

1 . A method performed by a wireless device for conditionally triggered handover from a source cell to a target cell, the method comprising:

receiving a conditionally triggered handover configuration from the source cell;

successfully completing the conditionally triggered handover to the target cell;

declaring a radio link failure, RLF, in association with the conditionally triggered handover to the target cell;

generating a RLF report responsive to declaring the RLF, the RLF report comprising:

information about an amount of time between execution of the successfully completed conditionally triggered handover to the target cell and declaring the RLF while being connected to the target cell,

and transmitting the RLF report to a network node.

2 . The method of claim 1 , wherein the RLF report further comprises one or more of:

the conditionally triggered handover configuration received from the source cell,

information about an amount of time between successfully completing the conditionally triggered handover to the target cell and reception of a new conditionally triggered handover configuration from the target cell, or

one or more radio link measurements for one or more conditionally triggered handover candidate cells associated to the conditionally triggered handover configuration received from the source cell.

3 . The method of claim 2 further comprising:

generating and storing a successful conditionally triggered handover report responsive to successfully completing the to the target cell.

4 . The method of claim 3 further comprising transmitting the successful conditionally triggered handover report to the target cell.

5 . The method of claim 1 further comprising retaining the conditionally triggered handover configuration received from the source cell after successfully completing the conditionally triggered handover to the target cell.

6 . The method of claim 5 wherein retaining the conditionally triggered handover received from the source cell after successfully completing the conditionally triggered handover to the target cell comprises retaining the conditionally triggered handover received from the source cell at least until the wireless device executes a handover from the target cell to another cell.

7 . The method of claim 5 wherein retaining the conditionally triggered handover configuration received from the source cell after successfully completing the conditionally triggered handover to the target cell comprises retaining the conditionally triggered handover configuration received from the source cell at least until the wireless device receives a new conditionally triggered handover configuration from the target cell.

8 . The method of claim 5 wherein retaining the conditionally triggered handover configuration received from the source cell after successfully completing the conditionally triggered handover to the target cell comprises retaining the conditionally triggered handover configuration received from the source cell at least until declaring the RLF while connected to the target cell.

9 . The method of claim 5 wherein retaining the conditionally triggered handover configuration received from the source cell after successfully completing the conditionally triggered handover to the target cell comprises retaining the conditionally triggered handover configuration received from the source cell at least until a predefined or network configured timer has expired.

10 . The method of claim 5 wherein the RLF report comprises one or more radio link measurements for one or more conditionally triggered handover candidate cells associated to the conditionally triggered handover configuration received from the source cell.

11 . The method of claim 1 further comprising discarding the conditionally triggered handover configuration received from the source cell after successfully completing the conditionally triggered handover to the target cell.

12 . The method of claim 1 wherein the RLF report comprises the information about the amount of time between successfully completing the conditionally triggered handover to the target cell and reception of a new conditionally triggered handover configuration from the target cell.

13 . The method of claim 12 further comprising:

starting a first timer for the amount of time between successfully completing the conditionally triggered handover to the target cell and reception of a new conditionally triggered handover configuration from the target cell;

receiving a new conditionally triggered handover configuration from the target cell; and

stopping the first timer responsive to receiving the new conditionally triggered handover configuration from the target cell;

wherein the RLF report comprises a value of the first timer.

14 . A wireless device for conditionally triggered handover from a source cell to a target cell, the wireless device adapted to:

receive a conditionally triggered handover configuration from the source cell;

successfully completing the conditionally triggered handover to the target cell;

declare a radio link failure, RLF, in association with the conditionally triggered handover to the target cell;

generate a RLF report responsive to declaring the RLF, the RLF report comprising:

information about an amount of time between execution of the successfully completed conditionally triggered handover HO or CHO to the target cell and declaring the RLF while being connected to the target cell,

and transmit the RLF report to a network node.