Method and apparatus for transmitting/receiving wireless signal in wireless communication system
Various embodiments relate to a next-generation wireless communication system for supporting higher data transmission rate, beyond a 4th generation (4G) wireless communication system. According to various embodiments, a method of transmitting and receiving a signal in a wireless communication system and an apparatus supporting the same may be provided, and other various embodiments may be provided.
1. A method of transmitting and receiving a signal by a user equipment (UE) in a wireless communication system, the method comprising:
receiving radio link monitoring (RLM) configuration information for a beam failure detection (BFD);
receiving beam failure recovery (BFR) configuration information;
performing a first BFD on reference signals (RSs) included in the RLM configuration information in a first time period; and
performing a second BFD in a second time period based on all measurement values for the RSs in the first time period being above a preconfigured specific threshold,
wherein the second BFD is performed for a limited number of at least one RS that is limited in number than the RSs on which the first BFD is performed, and
wherein the BFR configuration information independently configures a random access channel (RACH) resource related to a BFR triggered by the first BFD and the RACH resource related to the BFR triggered by the second BFD.
2. The method of claim 1 ,
wherein the RLM configuration information further includes information about an RS measurement time interval, information about a number of times of RS measurement, and information about an RS measurement period for each of the first BFD and the second BFD.
3. The method of claim 2 ,
wherein the RS measurement time interval for the second BFD is set to be greater than or equal to an RS measurement time interval for the first BFD,
the number of times of RS measurement for the second BFD is set to be less than or equal to the number of times of RS measurement for the first BFD, and
the RS measurement period for the second BFD is set to be greater than or equal to an RS measurement period for the first BFD.
4. The method of claim 1 ,
wherein the RLM configuration information further includes information about a number of times of occurrence of a first beam failure event for triggering BFR based on performance of the second BFD procedure and information about a number of times of occurrence of a second beam failure event for triggering BFR based on performance of the first BFD procedure, and
wherein the number of times of the first beam failure event is differently set from the number of times of the second beam failure event.
5. The method of claim 1 ,
wherein
the UE performs the second BFD based on a separately configured timer for performing the second BFD in the second time period.
6. A non-volatile computer readable medium in which program code for performing the method of claim 1 is recorded.
7. A user equipment (UE) operating in a wireless communication system, the UE comprising:
a transceiver; and
one or more processors connected to the transceiver,
wherein the one or more processors are configured to:
receive radio link monitoring (RLM) configuration information for a beam failure detection (BFD);
receive beam failure recovery (BFR) configuration information;
perform a first BFD on reference signals (RSs) included in the RLM configuration information in a first time period; and
perform a second BFD in a second time period based on
all measurement values for the RSs in the first time period being above a preconfigured specific threshold,
wherein the second BFD is performed for a limited number of at least one RS that is limited in number than the RSs on which the first BFD is performed, and
wherein the BFR configuration information independently configures a random access channel (RACH) resource related to a BFR triggered by the first BFD and the RACH resource related to the BFR triggered by the second BFD.
8. The UE of claim 7 ,
wherein the RLM configuration information further includes information about an RS measurement time interval, information about a number of times of RS measurement, and information about an RS measurement period for each of the first BFD and the second BFD.