Method and device for transmitting and receiving wireless signal in wireless communication system
The present invention relates to a wireless communication system and, more particularly, to a method and a device for the method. The method comprises the steps of: receiving same control channels in a plurality of differing analog beam directions; transmitting feedback information about one analog beam direction selected from the plurality of differing analog beam directions in which the control channels have been received; and receiving data channels, which correspond to the control channels, in only one analog beam direction, which is related to the feedback information, among the plurality of differing analog beam directions.
1. A method of receiving a signal by a user equipment (UE) in a wireless communication system, the method comprising:
receiving a same control channel in a plurality of different analog beam directions;
transmitting feedback information about one analog beam direction selected from among the plurality of different analog beam directions in which the control channel has been received; and
receiving a data channel corresponding to the control channel only in one analog beam direction related to the feedback information among the plurality of different analog beam directions,
wherein the feedback information is transmitted in control channel resources determined based on the selected analog beam direction, and the control channel resources comprise a different time resource for each analog beam direction.
2. The method of claim 1 , wherein a signal of the control channel has a first subcarrier spacing (SC), a signal of the data channel has a second SC, and the second SC is smaller than the first SC.
3. The method of claim 2 , wherein the second SC is a multiple of the first SC.
4. The method of claim 1 , wherein a signal of the control channel and a signal of the data channel have a same subcarrier spacing (SC), and the control channel is received only once in each of the plurality of different analog beam directions, and the data channel is received repeatedly a plurality of times in a same analog beam direction.
5. The method of claim 1 , wherein each analog beam direction of the plurality of different analog beam directions corresponds to a different orthogonal frequency division multiplexing (OFDM) symbol.
6. The method of claim 1 , wherein the control channel comprises a physical downlink control channel (PDCCH), and the data channel comprises a physical downlink shared channel (PDSCH).
7. A user equipment (UE) in a wireless communication system, the UE comprising:
a radio frequency (RF) module; and
a processor,
wherein the processor is configured to:
receive a same control channel in a plurality of different analog beam directions,
transmit feedback information about one analog beam direction selected from among the plurality of different analog beam directions in which the control channel has been received, and
receive a data channel corresponding to the control channel only in one analog beam direction related to the feedback information among the plurality of different analog beam directions,
wherein the feedback information is transmitted in control channel resources determined based on the selected analog beam direction, and the control channel resources comprise a different time resource for each analog beam direction.
8. The UE of claim 7 , wherein a signal of the control channel has a first subcarrier spacing (SC), a signal of the data channel has a second SC, and the second SC is smaller than the first SC.
9. The UE of claim 8 , wherein the second SC is a multiple of the first SC.
10. The UE of claim 7 , wherein a signal of the control channel and a signal of the data channel have a same subcarrier spacing (SC), and the control channel is received only once in each of the plurality of different analog beam directions, and the data channel is received repeatedly a plurality of times in a same analog beam direction.
11. The UE of claim 7 , wherein each analog beam direction of the plurality of different analog beam directions corresponds to a different orthogonal frequency division multiplexing (OFDM) symbol.
12. The UE of claim 7 , wherein the control channel comprises a physical downlink control channel (PDCCH), and the data channel comprises a physical downlink shared channel (PDSCH).