US 11,792,701 B2
Terminal device specific handover parameters
Peter Szilagyi, Budapest (HU); and Csaba Vulkán, Budapest (HU)
Assigned to NOKIA TECHNOLOGIES OY, Espoo (FI)
Appl. No. 16/764,159
Filed by NOKIA TECHNOLOGIES OY, Espoo (FI)
PCT Filed Nov. 16, 2017, PCT No. PCT/EP2017/079452
§ 371(c)(1), (2) Date May 14, 2020,
PCT Pub. No. WO2019/096389, PCT Pub. Date May 23, 2019.
Prior Publication US 2020/0396658 A1, Dec. 17, 2020
Int. Cl. H04W 4/00 (2018.01); H04W 36/00 (2009.01); H04W 36/30 (2009.01); H04W 36/32 (2009.01)
CPC H04W 36/0085 (2018.08) [H04W 36/0016 (2013.01); H04W 36/0058 (2018.08); H04W 36/0079 (2018.08); H04W 36/00835 (2018.08); H04W 36/00837 (2018.08); H04W 36/30 (2013.01); H04W 36/32 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method comprising:
collecting handover data correlated with mobility data of a plurality of terminal devices in a cellular communication network;
determining, based on the collected data, one or more trajectories associated with one or more handover anomalies or failures;
monitoring mobility or cellular connectivity of terminal devices;
detecting that a terminal device has or is going to have a trajectory that is determined to be associated with a handover anomaly or failure,
determining terminal device specific handover parameters for said terminal device to avoid said handover anomaly or failure;
utilizing said terminal device specific handover parameters in one or more handovers associated with the terminal device;
monitoring the one or more handovers performed on the basis of said terminal device specific handover parameters;
based on monitoring the one or more handovers performed, and said handover anomaly or failure being avoided by utilizing said terminal device specific handover parameters, storing an indication about said terminal device specific handover parameters avoiding said handover anomaly or failure with respect to said trajectory;
creating or modifying a terminal device specific neighbor relation table based on the terminal device specific handover parameters;
receiving of one or more measurement reports from the terminal device;
determining whether the terminal device is associated with a terminal device specific neighbor relation table; and
upon determining that the terminal device is associated with the terminal device specific neighbor relation table, utilizing said terminal device specific neighbor relation table in one or more handovers triggered based on said one or more measurement reports,
otherwise utilizing a cell specific neighbor relation table in one or more handovers triggered based on said one or more measurement reports.