Method and device for transmitting and receiving sounding reference signal in wireless communication system
A method for transmitting a sounding reference signal (SRS) by means of a terminal in a wireless communication system, according to one embodiment of the present specification, comprises: a step of receiving configuration information related to a transmission of an SRS; and a step of transmitting the SRS. The method is characterized in that the SRS is configured in a region comprising at least one symbol excluding the last symbol of a subframe, the region comprises a certain number of guard symbols, and the guard symbols are related to at least one of frequency hopping or antenna switching of the SRS.
1. A method of transmitting, by a user equipment (UE), a sounding reference signal (SRS) in a wireless communication system, the method comprising:
transmitting information on UE capability related to a frequency hopping of the SRS and an antenna switching of the SRS;
receiving configuration information related to transmission of a sounding reference signal (SRS); and
transmitting the SRS,
wherein the SRS is configured in a region comprised of at least one symbol other than a last symbol of a subframe,
wherein the region is configured based on i) a starting symbol index and ii) a number of symbols,
wherein the region includes at least one guard symbol of a specific number,
wherein the at least one guard symbol is related to at least one of i) the frequency hopping of the SRS or ii) the antenna switching of the SRS, based on the UE capability,
wherein a transmission number of the SRS is determined based on i) a factor related to a repetition of the SRS and ii) a specific symbol index, and
wherein, based on that the transmission of the SRS is based on the frequency hopping of the SRS and the antenna switching of the SRS, an index of an antenna related to the transmission of the SRS is determined based on a value obtained by dividing the transmission number of the SRS by a number of frequency hops in the frequency hopping of the SRS.
2. The method of claim 1 ,
wherein the specific number is determined based on at least one of i) the frequency hopping of the SRS or ii) the antenna switching of the SRS.
3. The method of claim 1 ,
wherein the specific symbol index is related to symbols except the specific number of the at least one guard symbol among symbols based on the number of symbols.
4. The method of claim 1 ,
wherein the frequency hopping of the SRS or the antenna switching of the SRS is performed based on the transmission number of the SRS.
5. The method of claim 4 ,
wherein the frequency hopping of the SRS is performed earlier than the antenna switching.
6. The method of claim 5 ,
wherein the antenna switching is performed based on at least one of i) the transmission number of the SRS or ii) the number of frequency hops in the frequency hopping performed on a bandwidth in which the transmission of the SRS is configured.
7. The method of claim 1 ,
wherein the configuration information includes information for at least one of i) the starting symbol index or ii) the number of symbols.
8. The method of claim 7 ,
wherein the number of symbols is related to at least one of i) a symbol in which the SRS is transmitted or ii) the guard symbol.
9. The method of claim 1 , further comprising transmitting UE capability information related to whether to configure the guard symbol.
10. A user equipment (UE) configured to transmit a sounding reference signal (SRS) in a wireless communication system, the UE comprising:
one or more transceivers;
one or more processors configured to control the one or more transceivers; and
one or more memories operably connected to the one or more processors and storing instructions which, when executed by the one or more processors, configure the one or more processors to perform operations,
wherein the operations comprise:
transmitting information on UE capability related to a frequency hopping of the SRS and an antenna switching of the SRS;
receiving configuration information related to transmission of a sounding reference signal (SRS); and
transmitting the SRS,
wherein the SRS is configured in a region comprised of at least one symbol other than a last symbol of a subframe,
wherein the region is configured based on i) a starting symbol index and ii) a number of symbols,
wherein the region includes at least one guard symbol of a specific number, wherein the at least one guard symbol is related to at least one of i) the frequency hopping of the SRS or ii) the antenna switching of the SRS, based on the UE capability,
wherein a transmission number of the SRS is determined based on i) a factor related to a repetition of the SRS and ii) a specific symbol index, and
wherein, based on that the transmission of the SRS is based on the frequency hopping of the SRS and the antenna switching of the SRS, an index of an antenna related to the transmission of the SRS is determined based on a value obtained by dividing the transmission number of the SRS by a number of frequency hops in the frequency hopping of the SRS.
11. A method of receiving, by a base station, a sounding reference signal (SRS) in a wireless communication system, the method comprising:
receiving information on user equipment capability (UE capability) related to a frequency hopping of the SRS and an antenna switching of the SRS;
transmitting configuration information related to a transmission of a sounding reference signal (SRS); and
receiving the SRS,
wherein the SRS is configured in a region comprised of at least one symbol other than a last symbol of a subframe,
wherein the region is configured based on i) a starting symbol index and ii) a number of symbols,
wherein the region includes at least one guard symbol of a specific number,
wherein the at least one guard symbol is related to at least one of i) the frequency hopping of the SRS or ii) the antenna switching of the SRS, based on the UE capability,
wherein a transmission number of the SRS is determined based on i) a factor related to a repetition of the SRS and ii) a specific symbol index, and
wherein, based on that the transmission of the SRS is based on the frequency hopping of the SRS and the antenna switching of the SRS, an index of an antenna related to the transmission of the SRS is determined based on a value obtained by dividing the transmission number of the SRS by a number of frequency hops in the frequency hopping of the SRS.