US 10,484,899 B2 · Mobility management for high speed user equipment

Abstract

The present invention relates to a method for efficiently supporting communication for vehicles in a next-generation wireless communication system and a device for the same. To this end, a user equipment (UE) receives signals from a network through a plurality of antenna units which are located in dispersed locations of the UE, determines, through a central unit thereof, whether a mobility related event of the UE has occurred through the signals received through the plurality of antenna units and transmits an event occurrence report to the network when the mobility related event of the UE has occurred, wherein whether the mobility related event of the UE has occurred is determined in consideration of receive (Rx) power of the signals received through the plurality of antenna units and a ray distribution between the network and the UE.

Claims11

Dependent claims

A method for a user equipment (UE) performing an event occurrence report for mobility management in a wireless communication system, the method comprising:

receiving reference signals transmitted through a plurality of propagation beams from a serving cell and one or more neighboring cells of a network;
determining link reliability with each of the serving cell and the neighboring cells of the network, the link reliability is (a) proportional to a number of the propagating beams from each of the serving cell and the neighboring cells and (b) a degree of ray distribution between the propagating beams, the degree of ray distribution is determined based on an angle of departure (AoD) difference between the propagation beams or an angle of arrival (AoA) difference between the propagation beams;
and
transmitting the event occurrence report to the network when a receive (Rx) power of a reference signal from a neighboring cell among the neighboring cells is higher than an Rx power of a reference signal from the serving cell by a predetermined threshold, and when the link reliability of the neighboring cell is better than the link reliability of the serving cell.

1 more element

A User Equipment (UE) for performing an event occurrence report for mobility management in a wireless communication system, the UE comprising:

antenna units;
and
a central unit connected to the antenna units,
wherein the antenna units are configured to receive reference signals from a network,
wherein the central unit is configured to determine link reliability with each of the serving cell and the neighboring cells of the network, the link reliability is (a) proportional to a number of the propagating beams from each of the serving cell and the neighboring cells and (b) a degree of ray distribution between the propagating beams, the degree of ray distribution is determined based on an angle of departure (AoD) difference between the propagation beams or an angle of arrival (AoA) difference between the propagation beams;
and
configured to transmit the event occurrence report to the network, when a receive (Rx) power of a reference signal from a neighboring cell among the neighboring cells is higher than an RX power of a reference signal from the serving cell by a predetermined threshold, and when the link reliability of the neighboring cell is better than the link reliability of the serving cell.

4 more elements

Dependencies are inferred from the claim text.

Mobility management for high speed user equipment

Life of this patent

Mobility management for high speed user equipment

Life of this patent

Abstract

Claims11