Method and device for receiving system information via beam
A method for a terminal to receive system information via a beam in a wireless communication system, and a device supporting the method are provided. The method may comprise: a step of receiving, via a beam, a message including scheduling information for system information, wherein the scheduling information includes information on a time window in which the system information is scheduled; and a step of receiving the system information in the time window via the beam.
1. A method in which a user equipment (UE) receives system information through a beam in a wireless communication system, the method comprising:
receiving a message comprising scheduling information on system information through each of multiple beams, wherein the scheduling information comprises information on a time window in which the system information is scheduled; and
receiving the system information in the time window through the beam,
wherein the scheduling information on the system information differs for the multiple beams.
2. The method of claim 1 , further comprising measuring quality of the multiple beams transmitted by a base station (BS).
3. The method of claim 2 , further comprising selecting the beam from among the multiple beams on the basis of the measured quality of the beams, wherein the system information is received through the selected beam in the time window.
4. The method of claim 3 , wherein the selected beam is a beam of which measured quality is the best quality among the multiple beams transmitted by the BS.
5. The method of claim 3 , wherein the selected beam is a beam of which measured quality is greater than or equal to a predefined threshold among the multiple beams transmitted by the BS.
6. The method of claim 5 , wherein the selected beam is plural in number.
7. The method of claim 1 , wherein the message further comprises update information on the system information, wherein the update information indicates an update state of the system information.
8. The method of claim 7 , wherein the update state of the system information is indicated by a value tag.
9. The method of claim 1 , wherein the message is at least any one of a master information block (MIB) or a system information block 1 (SIB1).
10. The method of claim 1 , wherein the message is a physical downlink control channel (PDCCH).
11. The method of claim 1 , wherein the time window in which the system information is scheduled is defined on a beam basis.
12. The method of claim 1 , wherein the time window in which the system information is scheduled is defined for a set of the multiple beams.
13. A user equipment (UE) for receiving system information through a beam in a wireless communication system, the UE comprising:
a memory;
a transceiver; and
a processor for coupling the memory and the transceiver, wherein the processor is configured to:
control the transceiver to receive a message comprising scheduling information on system information through each of multiple beams, wherein the scheduling information comprises information on a time window in which the system information is scheduled; and
control the transceiver to receive the system information in the time window through the beam,
wherein the scheduling information on the system information differs for the multiple beams.