Patent ID: 11917669
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An operation method performed by a transmission/reception point (TRP) in a communication system, the operation method comprising:
transmitting, to a terminal, a first discovery signal including an identifier of a first transmission beam by using the first transmission beam;
transmitting, to the terminal, a second discovery signal including an identifier of a second transmission beam by using the second transmission beam;
transmitting, to the terminal, a third discovery signal including an identifier of a third transmission beam by using the third transmission beam;
receiving, from the terminal, first beam pair information including an identifier of a first reception beam used for receiving the first discovery signal and the identifier of the first transmission beam, and first received signal strength information of the first transmission beam;
receiving, from the terminal, second beam pair information including an identifier of a second reception beam used for receiving the second discovery signal and the identifier of the second transmission beam, and second received signal strength information of the second transmission beam;
receiving, from the terminal, third beam pair information including an identifier of a third reception beam used for receiving the third discovery signal and the identifier of the third transmission beam, and third received signal strength information of the third transmission beam;
transmitting, to a controller, the first beam pair information, the second beam pair information, the third beam pair information, the first received signal strength information, the second received signal strength information, and the third received signal strength information;
receiving, from the controller, information on a first transmission beam pair selected from the first beam pair information, and the second beam pair information and the third beam pair information based on the first received signal strength information, the second received signal strength information and the third received signal strength information; and
transmitting data to the terminal by using a transmission beam according to the information on the first transmission beam pair,
wherein the identifier of the first transmission beam includes a TRP identifier (ID) of the TRP and an index of the first transmission beam, the identifier of the second transmission beam includes the TRP ID of the TRP and an index of the second transmission beam, the identifier of the third transmission beam includes the TRP ID of the TRP and an index of the third transmission beam, the identifier of the first reception beam includes a terminal ID of the terminal and an index of the first reception beam, the identifier of the second reception beam includes the terminal ID of the terminal and an index of the second reception beam, and the identifier of the third reception beam includes the terminal ID of the terminal and an index of the third reception beam.