Method for transmitting SRS in wireless communication system and terminal therefor
A method for transmitting, by a terminal, an SRS in a wireless communication system comprises the steps of: receiving, from a base station, control information including SRS resource pool information for tracking a transmission beam of the terminal; and transmitting the SRS to the base station on the basis of the control information, wherein the SRS is an SRS used for tracking the transmission beam of the terminal.
1. A method of transmitting an aperiodic Sounding Reference Symbol (SRS) by a User Equipment (UE) in a wireless communication system, the method comprising:
receiving, from a Base Station (BS), control information including aperiodic SRS resource pool information for tracking Transmission (Tx) beams of the UE; and
transmitting SRSs to the BS based on the control information,
wherein the control information including the aperiodic SRS resource pool information is transmitted by the BS based on triggering of tracking Tx beams of the UE, and the aperiodic SRS resource pool information includes SRS transmission type information,
wherein a SRS transmission type is determined based on UE-specific information, and
wherein the SRSs are used by the BS for tracking the Tx beams of the UE.
2. The method of claim 1 , comprising:
receiving, from the BS, uplink resource allocation information and a best Tx beam identifier (ID) of the UE, which is selected by tracking the Tx beams of the UE; and
transmitting an uplink signal using a Tx beam of the UE corresponding to the best Tx beam ID of the UE.
3. The method of claim 1 , wherein the aperiodic SRS resource pool information includes symbol size information of an aperiodic SRS resource pool and start symbol index information of the aperiodic SRS resource pool.
4. The method of claim 1 , wherein the control information includes Tx candidate beam identifier (ID) information of the UE for tracking the Tx beams of the UE.
5. The method of claim 1 ,
wherein the SRS transmission type information indicates an SRS resource pool pattern, and
wherein the SRSs are transmitted based on the SRS resource pool pattern.
6. The method of claim 5 , wherein the SRS resource pool pattern is determined based on a transmission comb pattern, whether there is a localized SRS transmission region, or whether there is a full-band SRS transmission region.
7. A User Equipment (UE) for transmitting an aperiodic Sounding Reference Symbol (SRS) in a wireless communication system, the UE comprising:
a receiver;
a transmitter; and
a processor,
wherein the processor is configured to:
control the receiver to receive, from a Base Station (BS), control information including aperiodic SRS resource pool information for tracking Transmission (Tx) beams of the UE; and
control the transmitter to transmit SRSs to the BS based on the control information,
wherein the control information including the aperiodic SRS resource pool information is transmitted by the BS based on triggering of tracking Tx beams of the UE, and the aperiodic SRS resource pool information includes SRS transmission type information,
wherein a SRS transmission type is determined based on UE-specific information, and
wherein the SRSs are used by the BS for tracking the Tx beams of the UE.
8. The UE of claim 7 , wherein the processor is configured to:
control the receiver to receive, from the BS, uplink resource allocation information and a best Tx beam identifier (ID) of the UE, which is selected by tracking the Tx beams of the UE; and
control the transmitter to transmit an uplink signal using a Tx beam of the UE corresponding to the best Tx beam ID of the UE.
9. The UE of claim 7 , wherein the aperiodic SRS resource pool information includes symbol size information of an SRS resource pool and start symbol index information of the SRS resource pool.
10. The UE of claim 7 , wherein the control information includes Tx candidate beam identifier (ID) information of the UE for tracking the Tx beams of the UE.
11. The UE of claim 7 ,
wherein the SRS transmission type information indicates an SRS resource pool pattern, and
wherein the processor is configured to control the transmitter to transmit the SRSs based on the SRS resource pool pattern.
12. The UE of claim 11 , wherein the SRS resource pool pattern is determined based on a transmission comb pattern, whether there is a localized SRS transmission region, or whether there is a full-band SRS transmission region.