Managing handover execution
A method performed by a base station serving a source cell for managing handover execution. The method includes storing first NCR information for a first target cell, wherein the first NCR information comprises: i) a first cell identifier for identifying the first target cell and ii) processing unit (PU) information indicating whether or not the target cell has at least one PU available. The method further includes evaluating whether or not to initiate a handover of a user equipment from the source cell to the target cell, wherein the evaluation is based at least in part on the PU information for the target cell.
1 . A method, performed by a base station serving a source cell, for managing handover execution, the method comprising:
storing first neighbor cell relation (NCR) information for a first target cell, wherein the first NCR information comprises: i) a first cell identifier for identifying the first target cell and ii) processing unit (PU) information indicating whether or not the target cell has at least one PU available; and
evaluating whether or not to initiate a handover of a user equipment (UE) from the source cell to the target cell, wherein the evaluation is based at least in part on the PU information for the target cell, wherein
the target cell comprises a first PU,
the PU information comprises first PU performance information indicating a performance of a first PU,
the first PU performance information for the first PU comprises video frame rendering capability information for the first PU, and
the video frame rendering capability information comprises a time value indicating an estimated amount of time that it will take the first PU to produce a result.
2 . The method of claim 1 , wherein
the time value indicates an estimated amount of time to render a video frame having a particular resolution and/or a particular set of one or more fidelity settings, or
the time value indicates an estimated amount of time to produce an inference.
3 . The method of claim 1 , wherein
the method further comprises obtaining for the UE, a threshold time value indicating a threshold amount of time, and
the evaluation as to whether or not to initiate the handover of the UE from the source cell to the target cell is further based on the PU performance information and threshold time value.
4 . A non-transitory computer readable storage medium storing a computer program comprising instructions for configuring a base station serving a source cell to perform a method comprising:
storing first neighbor cell relation (NCR) information for a first target cell, wherein the first NCR information comprises: i) a first cell identifier for identifying the first target cell and ii) processing unit (PU) information indicating whether or not the target cell has at least one PU available; and
evaluating whether or not to initiate a handover of a user equipment (UE) from the source cell to the target cell, wherein the evaluation is based at least in part on the PU information for the target cell, wherein
the target cell comprises a first PU,
the PU information comprises first PU performance information indicating a performance of a first PU,
the first PU performance information for the first PU comprises video frame rendering capability information for the first PU, and
the video frame rendering capability information comprises a time value indicating an estimated amount of time that it will take the first PU to produce a result.
5 . A base station, the base station comprising:
a storage device for storing first neighbor cell relation (NCR) information for a first target cell, wherein the first NCR information comprises: i) a first cell identifier for identifying the first target cell and ii) processing unit (PU) information indicating whether or not the target cell has at least one PU available; and
processing circuitry for evaluating whether or not to initiate a handover of a user equipment (UE) from the source cell to the target cell, wherein the evaluation is based at least in part on the PU information for the target cell, wherein
the target cell comprises a first PU,
the PU information comprises first PU performance information indicating a performance of a first PU,
the first PU performance information for the first PU comprises video frame rendering capability information for the first PU, and
the video frame rendering capability information comprises a time value indicating an estimated amount of time that it will take the first PU to produce a result.
6 . The base station of claim 5 , wherein
the time value indicates an estimated amount of time to render a video frame having a particular resolution and/or a particular fidelity, or
the time value indicates an estimated amount of time to produce an inference.
7 . The base station of claim 5 , further being configured to:
obtain for the UE a threshold time value indicating a threshold amount of time, wherein
the evaluation as to whether or not to initiate the handover of the UE from the source cell to the target cell is further based on the PU performance information and threshold time value.
8 . The base station of claim 7 , wherein
the threshold time value is based on a video frame rate.
9 . The base station of claim 8 , wherein
the threshold is equal to the reciprocal of the video frame rate.
10 . The base station of claim 7 , wherein
the base station is further configured to receive an event report message transmitted by the UE, and
the base station is further configured to evaluate whether or not to initiate the handover of the UE from the source cell to the target cell as a result of receiving the event report message.
11 . The base station of claim 10 , wherein
the event report message includes the threshold time value.
12 . The base station of claim 10 , wherein
the event report message further includes reference signal measurement information for the target cell.
13 . The base station of claim 10 , wherein
the event report message is a PU quality measurement report, wherein the PU quality measurement report indicates that the UE has detected a PU related event.
14 . The base station of claim 13 , wherein
the PU quality measurement report comprises information indicating that a key performance indicator (KPI) for a PU currently serving the UE has met a criterion.
15 . The base station of claim 13 , wherein
receiving the PU quality measurement report comprises receiving a Radio Resource Control (RRC) Measurement Report message comprising the PU quality measurement report.
16 . The base station of claim 5 , wherein
the PU performance information further comprises information specifying distance between an available PU and the base station.
17 . The base station of claim 16 , wherein
the information specifying distance between the available PU and the base station is a value indicating a number of hops between the available PU and the base station.