Method, device and system for uplink transmission and downlink reception in wireless communication system
View Patent ↗A transmission and reception method of a radio signal by a terminal in a wireless communication system comprises the steps of: determining whether or not transmission of an uplink radio signal or reception of a downlink radio signal allocated to a terminal is possible on a slot configured to comprise at least one of one or more downlink symbols for downlink transmission, one or more flexible symbols and one or more uplink symbols for uplink transmission; and controlling the transmission of the uplink radio signal or the reception of the downlink radio signal on the basis of the determination.
1. A terminal performing uplink transmission and downlink reception in a wireless communication system, the terminal comprising:
a communication module configured to transmit an uplink radio signal to a base station or to receive a downlink radio signal from a base station; and
a processor,
wherein the processor is configured to:
receive slot configuration information related to configuration a slot,
determine a position and a number of at least one contiguous gap symbol based on receiving the slot configuration information,
determine, based on the position and the number of the at least one contiguous gap symbol, whether transmission of an uplink radio signal or reception of a downlink radio signal is valid in the slot, the slot being configured with at least one of a downlink symbol for downlink transmission, a flexible symbol for downlink or uplink transmission, or an uplink symbol for uplink transmission, and
perform transmission of the uplink radio signal or reception of the downlink radio signal according to the determination result.
2. The terminal of claim 1 ,
wherein whether the transmission of the uplink signal is impossible in the slot is identified based on a first symbol among symbols to which the uplink signal is allocated is located after the number of the at least one contiguous gap symbol from a last symbol of the downlink symbol.
3. The terminal of claim 2 ,
wherein the uplink signal comprises at least one of a physical uplink control channel, a physical uplink shared channel, a physical random access channel, and a sounding reference signal (SRS).
4. The terminal of claim 2 ,
wherein at least one of the symbols to which the uplink signal is allocated is a flexible symbol.
5. The terminal of claim 1 ,
wherein when a first symbol among symbols to which the uplink signal is allocated in the slot overlaps at least one of the downlink symbol, a symbol allocated for reception of the downlink signal, or the number of the at least one contiguous gap symbol after a last symbol of the downlink symbol, the transmission of the uplink signal is impossible.
6. The terminal of claim 5 , wherein the downlink radio signal comprises at least one of a synchronization signal/physical broadcast channel (SS/PBCH) block, a physical downlink shared channel, a physical downlink control channel, or a channel state information reference signal (CSI-RS).
7. The terminal of claim 5 , wherein the uplink radio signal for which transmission is not performed is a physical uplink control channel, and
wherein the processor converts the physical uplink control channel into another type of physical uplink control channel in which transmission is valid in the slot and transmits the other type of physical uplink control channel, or performs transmission in the first slot among slots in which transmission after the slot is valid.
8. The terminal of claim 5 , wherein the uplink radio signal comprises at least one of a physical uplink control channel, a physical uplink shared channel, a physical random access channel, and a sounding reference signal (SRS).
9. The terminal of claim 5 , wherein at least one of the symbols to which the uplink radio signal is allocated is a flexible symbol.
10. The terminal of claim 1 ,
wherein when a last symbol among symbols to which the downlink signal is allocated in the slot is located before the number of the at least one contiguous gap symbol the downlink signal is received.
11. The terminal of claim 10 ,
wherein the downlink signal comprises at least one of a physical downlink shared channel, a physical downlink control channel, or a channel state information reference signal (CSI-RS).
12. The terminal of claim 10 ,
wherein at least one of the symbols to which the downlink signal is allocated is a flexible symbol.
13. The terminal of claim 1 ,
wherein when a last symbol among symbols to which the downlink signal is allocated in the slot overlaps any symbol of at least one contiguous gap symbol, the reception of the downlink signal is impossible.
14. The terminal of claim 13 ,
wherein the uplink signal is a physical random access channel.
15. The terminal of claim 13 , wherein the downlink radio signal comprises at least one of a physical downlink shared channel, a physical downlink control channel, or a channel state information reference signal (CSI-RS).
16. The terminal of claim 13 , wherein at least one of the symbols to which the downlink radio signal is allocated is a flexible symbol.
17. The terminal of claim 1 , wherein the slot is configured by information on a slot configuration provided by the base station, and
wherein the information on the slot configuration comprises at least one of a cell-specific RRC message generated in an RRC layer, a UE-specific RRC message, or dynamic slot format information generated in a physical layer.
18. The terminal of claim 1 ,
wherein the position is determined right after the downlink symbol or the last symbol for reception of the downlink radio signal, and the number of the at least one contiguous gap symbol is determined by higher layer signaling.