US 12,035,185 B2
Methods and network devices for mobility management of unmanned aerial vehicles
Anders Berggren, Lund (SE); Rickard Ljung, Helsingborg (SE); and Lars Nord, Lund (SE)
Assigned to Sony Group Corporation, Tokyo (JP)
Appl. No. 16/958,315
Filed by SONY CORPORATION, Tokyo (JP)
PCT Filed Dec. 6, 2018, PCT No. PCT/SE2018/051256
§ 371(c)(1), (2) Date Jun. 26, 2020,
PCT Pub. No. WO2019/151917, PCT Pub. Date Aug. 8, 2019.
Claims priority of application No. 1850129-6 (SE), filed on Feb. 5, 2018.
Prior Publication US 2021/0037436 A1, Feb. 4, 2021
Int. Cl. H04W 36/00 (2009.01); H04W 36/08 (2009.01)
CPC H04W 36/00835 (2018.08) [H04W 36/08 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method, for use in a wireless communication device, for supporting mobility management of the wireless communication device in a wireless communication network comprising a plurality of radio network nodes, wherein one of the plurality of radio network nodes is a serving radio network node of the wireless communication device, the method comprising:
receiving, from the serving radio network node, a message including information associated with discovery signal transmission;
determining, based on the information, whether to transmit a discovery signal configured to support uplink-based mobility management of the wireless communication device by the wireless communication network, wherein the discovery signal is a sidelink communication signal; and
upon the determining being positive,
transmitting the discovery signal from the wireless communication device to one or more radio network nodes of the plurality of radio network nodes, wherein the discovery signal includes an identifier of the wireless communication device and an indication that the discovery signal is for supporting uplink-based mobility management of the wireless communication device based on measurements of the discovery signal by the one or more radio network nodes.