US 11,115,835 B2Granted

Method and device for performing device-to-device communication by sharing uplink resource and sidelink resource in wireless communication system

AssigneeLG Electronics Inc.

InventorsIlmu Byun, Hanbyul Seo

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Abstract

Provided are a method and a device for performing device-to-device communication by sharing an uplink resource and a sidelink resource in a wireless communication system. Particularly, a first terminal receives, from a base station, beam scanning signals and a first threshold value. The first terminal generates first reception beam information including beam information of a signal received at a signal intensity greater than or equal to the first threshold value, among the beam scanning signals. The first terminal receives second reception beam information from the base station. The second reception beam information includes beam information of a first uplink signal received by the base station from a second terminal. The first terminal transmits a sidelink signal through the sidelink resource by using a beam obtained by excluding a third reception beam from a first reception beam. The third reception beam is a beam of the first terminal for receiving a signal transmitted using a transmission beam of the base station in the same direction as a second reception beam. The sidelink resource is overlapped with the uplink resource in time and frequency domains.

Claims14

Dependent claims

A method of performing communication between terminals by sharing an uplink resource and a sidelink resource in a wireless communication system, the method comprising:

receiving, by a first terminal, a beam scanning signal and a first threshold from a base station;
generating, by the first terminal, information on a first reception beam of a signal received with signal strength greater than or equal to the first threshold among the beam scanning signals;
receiving, by the first terminal, information on a second reception beam from the base station, wherein the second reception beam is a reception beam of a first uplink signal received by the base station from a second terminal;
transmitting, by the first terminal, a sidelink signal by using a beam except for a third reception beam from the first reception beam, wherein the third reception beam is a beam of the first terminal which receives a signal transmitted based on a transmission beam of the base station,
wherein a directing point of the transmission beam of the base station is same as a directing point of the second reception beam, and
wherein the sidelink resource overlaps with the uplink resource in time and frequency domains;
and
receiving, by the first terminal, a second threshold from the base station,
wherein the sidelink signal is transmitted based on a beam of a signal received with signal strength greater than or equal to the first threshold and a beam of a signal received with signal strength less than or equal to the second threshold, and
wherein the second threshold is set to be greater than or equal to the first threshold.

7 more elements

A first terminal for performing communication between terminals by sharing an uplink resource and a sidelink resource in a wireless communication system, the first terminal comprising:

a radio frequency (RF) unit transmitting and receiving a radio signal;
and
a processor operatively coupled with the RF unit, wherein the processor is configured to:
receive a beam scanning signal and a first threshold from a base station;
generate information on a first reception beam of a signal received with signal strength greater than or equal to the first threshold among the beam scanning signals;
receive information on a second reception beam from the base station, wherein the second reception beam is a reception beam of a first uplink signal received by the base station from a second terminal;
transmit a sidelink signal by using a beam except for a third reception beam from the first reception beam, wherein the third reception beam is a beam of the first terminal which receives a signal transmitted based on a transmission beam of the base station,
wherein a directing point of the transmission beam of the base station is same as a directing point of the second reception beam, and
wherein the sidelink resource overlaps with the uplink resource in time and frequency domains;
and
receive a second threshold from the base station,
wherein the sidelink signal is transmitted based on a beam of a signal received with signal strength greater than or equal to the first threshold and a beam of a signal received with signal strength less than or equal to the second threshold, and
wherein the second threshold is set to be greater than or equal to the first threshold.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/613,108Filed 31 Jan 2018 · us provisional application
Priority: 28 May 2017
Published: US 2020/0100119 A126 Mar 2020
Granted: 7 Sep 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

H04W 16/28
Cell structures: using beam steering
H04W 48/16
Access restriction ; Network selection; Access point selection: discovering, processing access restriction or access information
H04B 7/06952
Using beam selection: selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
H04B 7/088
Hybrid systems, i.e. switching and combining: using beam selection