Method and device for beam reporting in wireless communication system

1 . A method comprising:

receiving, by a terminal from a base station, configuration information regarding a plurality of reference signal (RS) resource set; and

transmitting, by the terminal to the base station, reporting information including first measurement information for a first RS resource set and second measurement information for a second RS resource set, based on the configuration information,

wherein the first measurement information is transmitted periodically, semi-persistently, or aperiodically, and an aperiodic first measurement information is triggered by the base station,

wherein the second measurement information is transmitted aperiodically on a basis that a predetermined event is triggered by the terminal, and

wherein the first measurement information and the second measurement information are L1 (layer 1) measurement information.

2 . The method according to claim 1 , wherein:

the configuration information includes at least one of whether event-based or non-event-based reporting is performed, a reporting period, a reporting offset, a number of RS resources to be reported, or the number of measurement information to be reported for each of the plurality of RS resource sets.

3 . The method according to claim 1 , wherein:

the configuration information includes information on an event trigger criteria,

the criteria includes at least one of a relative comparison of quality values of a best RS resource between a specific RS resource set and other at least one RS resource set of the plurality of RS resource sets or a comparison with an absolute threshold for the quality value of the best RS resource of the specific RS resource set, or

the criteria includes at least one of the relative comparison of quality values of the best RS resource between the specific RS resource set and other at least one RS resource set of the plurality of RS resource sets or a comparison with an absolute threshold for the quality value of the best RS resource of the specific RS resource set.

4 . The method according to claim 1 , wherein:

the reporting information includes at least one of information on a RS resource set that at least one of the first measurement information or the second measurement information is associated respectively, or information on whether an event occurs.

5 . The method according to claim 1 , wherein:

the first measurement information and the second measurement information are transmitted on a same uplink resource or a different uplink resource.

6 . The method according to claim 5 , wherein:

the first measurement information and the second measurement information are multi-part-encoded and transmitted on the same uplink resource,

a first part includes the first measurement information and further includes at least one of whether the second measurement information exists or part of the second measurement information,

a second part includes all of the second measurement information or a remaining part of the second measurement information,

the second part is included in the reporting information on a basis that the second measurement information exists.

7 . The method according to claim 5 , wherein:

the same uplink resource is determined based on a predefined payload size based on an assumption that the second measurement information is included in the reporting information or the assumption that the second measurement information is not included.

8 . The method according to claim 5 , wherein:

the different uplink resource includes a first resource reserved for the first measurement information and a second resource reserved for the second measurement information.

9 . The method according to claim 5 , wherein:

on a basis that a calculated payload size of entire information including at least one of the first measurement information or the second measurement information is larger than a maximum payload size of the same or different resource, part of at least one of the first measurement information or the second measurement information is omitted.

10 . The method according to claim 1 , wherein:

a reporting time when transmission of the second measurement information is allowed or the reporting time when transmission of the second measurement information is not allowed is preconfigured or predefined.

11 . The method according to claim 1 , wherein:

each of the plurality of RS resource sets includes at least one RS resource associated with a same entity identifier or a same scrambling identifier,

the entity corresponds to at least one of a cell, a transmission and reception point (TRP), a panel, or a beam.

12 . The method according to claim 11 , wherein:

the first RS resource set is associated with a serving entity and the second RS resource set is associated with a neighboring entity.

13 . The method according to claim 1 , wherein:

the RS resource includes at least one of a channel state information-reference signal (CSI-RS) resource or a synchronization signal (SS)/physical broadcast channel (PBCH) block,

the L1 measurement information includes at least one of reference signal received power (L1-RSRP), a signal to interference and noise ratio (L1-SINR), or reference signal received quality (L1-RSRQ).

14 . The method according to claim 1 , wherein:

the reporting information includes at least one of uplink control information (UCI), or a medium access control (MAC)-control element (CE),

the reporting information is transmitted through at least one of a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH),

the PUSCH is transmitted based on grant-based or configured grant.

15 . The method according to claim 14 , wherein:

whether an event occurs is reported through the PUCCH and the second measurement information is reported through the PUSCH.

16 . A terminal comprising:

at least one transceiver; and

at least one processor connected to the at least one transceiver,

wherein the at least one processor is configured to:

receive, through the at least one transceiver, from a base station, configuration information regarding a plurality of reference signal (RS) resource sets; and

transmit, through the at least one transceiver, to the base station, reporting information including first measurement information for a first RS resource set and second measurement information for a second RS resource set based on the configuration information,

wherein the first measurement information is transmitted periodically, semi-persistently or aperiodically, and an aperiodic first measurement information is triggered by the base station,

wherein the second measurement information is transmitted aperiodically on a basis that a predetermined event is triggered by the terminal, and

wherein the first measurement information and the second measurement information are L1 (layer 1) measurement information.

17 . A base station comprising:

at least one transceiver; and

at least one processor connected to the at least one transceiver,

wherein the at least one processor is configured to:

transmit, through the at least one transceiver, to a terminal, configuration information regarding a plurality of reference signal (RS) resource sets; and

receive, through the at least one transceiver, from the terminal, reporting information including first measurement information for a first RS resource set and second measurement information for a second RS resource set transmitted based on the configuration information,

wherein the first measurement information is transmitted periodically, semi-persistently or aperiodically, and an aperiodic first measurement information is triggered by the base station,

wherein the second measurement information is transmitted aperiodically on a basis that a predetermined event is triggered by the terminal, and

wherein the first measurement information and the second measurement information are L1 (layer 1) measurement information.