Patent ID: 11930416
Assignee: NOKIA SOLUTIONS AND NETWORKS OY
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. 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 configured, with the at least one processor, to cause the apparatus to perform at least the following:
send at least one measurement report to a source base station;
receive, in response to the at least one measurement report, a handover command from the source base station, wherein the handover command includes a prepared cell list of a set of cells where the apparatus is capable of handover and the prepared cell list provides a capability for the apparatus to make multiple consecutive handovers in response to the apparatus being within a coverage area of the set of cells, wherein the set of cells comprises a plurality of prepared cells;
perform synchronization and random access with at least one cell from the set of cells; and
send a handover complete message to the at least one cell
wherein each prepared cell in the prepared cells list has multiple contexts, wherein each context is based on a path for the apparatus to reach a target cell from a source cell, and wherein the apparatus further caused to
generate a horizontally generated key in response to handover to one cell in a corresponding path to reach the target cell from the source cell, wherein each path requires a different horizontally generated key.