Method and user equipment for transmitting and receiving signals
Provided are a method for receiving, by a terminal, a scheduling signaling transmitted by a transmitting node; then, deciding, by the terminal, whether a gap is to be reserved between an uplink signal symbol and an uplink physical channel symbol, and determining a time-frequency resource mapping of an uplink signal and/or an uplink physical channel; or, deciding, by the terminal, whether a predefined signal is to be transmitted on a predefined time-frequency resource within an uplink signal symbol, and determining a time-frequency resource mapping of an uplink signal and/or an uplink physical channel; transmitting, by the terminal, the uplink physical channel and/or the uplink signal, or quitting scheduling and transmitting the uplink physical channel and/or the uplink signal. Thus, when an uplink signal is transmitted on the basis of an LBT, mutual hindrance between an uplink physical channel and an uplink detection signal is effectively reduced.
1. A method performed by a terminal in a wireless communication system, the method comprising:
receiving, from a base station, configuration information on sounding reference signal (SRS) parameters for an SRS transmission;
receiving, from the base station, a physical layer signaling to trigger the SRS transmission for a licensed-assisted access (LAA) cell, in a subframe n, the physical layer signaling including information on an SRS timing offset value; and
transmitting, to the base station, the SRS for the LAA cell in a subframe n+k, in case that the k is defined based on the information on the SRS timing offset value.
2. The method of claim 1 , wherein the configuration information is transmitted by a higher layer signaling, and
wherein the physical layer signaling is transmitted by downlink control information (DCI).
3. The method of claim 1 ,
wherein the SRS is transmitted, in case that a channel is sensed to be idle by a channel access procedure.
4. The method of claim 1 , wherein the SRS parameters further include at least one cell specific resource.
5. A terminal in a wireless communication system, comprising:
a transceiver; and
a controller configured to:
control the transceiver to receive, from a base station, configuration information on sounding reference signal (SRS) parameters for an SRS transmission;
control the transceiver to receive, from the base station, a physical layer signaling to trigger the SRS transmission for a licensed-assisted access (LAA) cell, in a subframe n, the physical layer signaling including information on an SRS timing offset value;
control the transceiver to transmit, to the base station, the SRS for the LAA cell in a subframe n+k, in case that the k is defined based on the information on the SRS timing offset value.
6. The terminal of claim 5 ,
wherein the configuration information is transmitted by a higher layer signaling, and
wherein the physical layer signaling is transmitted by downlink control information (DCI).
7. The terminal of claim 5 ,
wherein the SRS is transmitted, in case that a channel is sensed to be idle by a channel access procedure.
8. The terminal of claim 5 , wherein the SRS parameters further include at least one cell specific SRS resource.