# US 10,764,807 B2 · Communication method for high-speed moving vehicle in wireless communication system, and apparatus for same

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- Number: US 10,764,807 B2
- Document ID: US10764807B2
- Status: Granted
- Kind: B2
- Application number: 16/312,121
- Filed: 2017-06-23
- Published: 2019-07-04
- Granted: 2020-09-01
- Earliest claimed: 2016-06-23
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Hanbyul Seo
- Web page: https://patentgrep.com/patent/US10764807B2

## CPC

- H04W 16/28: using beam steering
- H04W 24/08: Testing, {supervising or monitoring} using real traffic
- H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports}
- H04W 36/0058: {Transmission of hand-off measurement information, e.g. measurement reports}
- H04W 36/0061: {of neighbour cell information}
- H04W 36/0072: {of resource information of target access point}
- H04W 36/00835: {Determination of neighbour cell lists}
- H04W 36/0085: {Hand-off measurements}
- H04W 36/302: {due to low signal strength}
- H04W 36/324: {by mobility data, e.g. speed data}
- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04W 72/046: {the resource being in the space domain, e.g. beams}
- H04W 76/25: Maintenance of established connections
- H04B 7/0617: {for beam forming}
- H04W 36/00837: {Determination of triggering parameters for hand-off}
- H04W 92/10: between terminal device and access point, i.e. wireless air interface
- H04W 92/20: between access points
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04B: TRANSMISSION

## Abstract

In the present application, disclosed is a method for a user equipment, that is moving at high speed from a first base station to a second base station, to transmit and receive signals in a wireless communication system. Specifically, the method comprises the steps of: when a measurement value from the first base station is less than or equal to a first threshold value, monitoring a transmission of a first signal from the second base station; when the transmission of the first signal is detected, transmitting a response signal to the first signal to the second base station; and receiving a second signal from the second base station that has received the response signal.

## Claims

### Claim 1

A method of transmitting and receiving signals with a network by a user equipment (UE) in a wireless communication system, the method comprising:
receiving, from a first base station, configuration information for receiving control signals from a plurality of second base stations;
when a measurement value related to the first base station is equal to or less than a first threshold while the UE is moving away from the first base station, monitoring the control signals transmitted from the plurality of second base stations in candidate resource regions, wherein each of the candidate resource regions corresponds to each of the plurality of second base stations;
detecting one of the control signals in one of the candidate resource regions;
transmitting a response signal to one of the plurality of second base stations corresponding to the one candidate resource region; and
receiving a data signal from the one second base station,
wherein, when a measurement value of the detected control signal is equal to or greater than a second threshold, transmitting the response signal comprises transmitting feedback information to the one second base station,
wherein monitoring the control signals comprises monitoring the control signals in the candidate resource regions in a descending order of priorities of the candidate resource regions.

### Claim 2 (depends on 1)

The method of claim 1, wherein the control signals are beamformed to anticipated entering positions of the UE in the coverage areas of the plurality of second base stations.

### Claim 3 (depends on 1)

The method of claim 1, wherein when the measurement value related to the first base station is equal to or less than the first threshold, the first base station provides the plurality of second base stations with information indicating that the UE is moving towards the coverage areas of the plurality of second base stations.

### Claim 4

An apparatus for wireless communications, comprising:
a memory; and
at least one processor operatively coupled to the memory and configured to:
receive, from a first base station, configuration information for receiving control signals from a plurality of second base stations;
when a measurement value related to the first base station is equal to or less than a first threshold while the apparatus is moving away from the first base station, monitor the control signals transmitted from the plurality of second base stations in candidate resource regions, wherein each of the candidate resource regions corresponds to each of the plurality of second base stations;
detect one of the control signals in one of the candidate resource regions;
transmit a response signal to one of the plurality of second base stations corresponding to the one candidate resource region; and
receive a data signal from the one second base station,
wherein, when a measurement value of the detected control signal is equal to or greater than a second threshold, the at least one processor is configured to transmit feedback information to the one second base station,
wherein the control signals are monitored in the candidate resource regions in a descending order of priorities of the candidate resource regions.

### Claim 5 (depends on 4)

The apparatus of claim 4, wherein the control signals are beamformed to anticipated entering positions of the UE in the coverage areas of the plurality of second base stations.

### Claim 6 (depends on 4)

The apparatus of claim 4, wherein when the measurement value related to the first base station is equal to or less than the first threshold, the first base station provides the plurality of second base stations with information indicating that the apparatus is moving towards the coverage areas of the plurality of second base stations.