Patent ID: 11937320
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An operation method of a terminal for beam management and radio link management, the operation method comprising:
receiving, from a first cell operating as a primary cell (PCell), a connection reconfiguration message for configuring a carrier aggregation function including configuration information for a second cell operating as a secondary cell (SCell);
performing beam monitoring operations for the first cell and the second cell and a radio link monitoring operation for the first cell;
in response to detecting a beam failure for the second cell, performing a procedure of a beam failure recovery for the second cell, and reporting the beam failure recovery to the first cell or the second cell; and
in response to detecting a radio link failure (RLF) for the first cell, re-establishing a radio link with a third cell, and performing a procedure of reporting the RLF to the third cell,
wherein the procedure of reporting the RLF to the third cell includes transmitting a RLF message to the third cell, the RLF message including an identifier of the first cell where the RLF occurred, location information of the terminal at a time of transmitting the RLF message, and information on a time elapsed after the occurrence of the RLF,
wherein the RLF message further includes information on whether a condition for performing a random access procedure for beam recovery is satisfied.