Method for transmitting and receiving uplink control channel and sounding reference symbol, and apparatus therefor
A method for transmitting, by a terminal, an uplink control channel and a localized SRS comprises the steps of: receiving, from a base station, first control information for triggering transmission of the uplink control channel and second control information for triggering transmission of the localized SRS; and if a transmission resource of the triggered uplink control channel overlaps with a transmission resource of the triggered localized SRS and the length of a frequency band of the localized SRS is shorter than or equal to the length of a coherent bandwidth, dividing the uplink control channel into a plurality of uplink control channel sub-blocks on a frequency domain and transmitting the divided uplink control channel sub-blocks, wherein the divided uplink control channel sub-blocks may be frequency division multiplexed with the triggered localized SRS and transmitted on one symbol.
1. A method of transmitting, by a user equipment (UE), an uplink (UL) control channel and a localized sounding reference symbol (SRS), the method comprising:
receiving, from a base station, first control information for triggering transmission of the uplink control channel and second control information for triggering transmission of the localized SRS;
segmenting the uplink control channel into a plurality of uplink control channel sub-blocks by using a unit of the localized SRS in a frequency domain based on a predetermined condition being satisfied;
transmitting the segmented uplink control channel sub-blocks; and
transmitting the localized SRS using a port corresponding to a port of the UL control channel,
wherein the predetermined condition is that a resource for transmitting the triggered uplink control channel overlaps with a resource for transmitting the triggered localized SRS and a length of a frequency band of the localized SRS is less than a length of a coherent bandwidth, and
wherein the segmented uplink control channel sub-blocks are frequency division multiplexed with the triggered localized SRS and transmitted in one symbol.
2. The method of claim 1 , wherein the triggered localized SRS is transmitted in a band corresponding to a gap between the segmented uplink control channel sub-blocks in the frequency domain.
3. The method of claim 1 , wherein the first control information comprises information on the resource for transmitting the uplink control channel, and wherein the second control information further comprises information on the resource for transmitting the localized SRS.
4. The method of claim 1 , wherein the localized SRS is transmitted on a resource corresponding to 4 resource blocks (RBs).
5. The method of claim 1 , wherein whether to perform the segmenting is determined based on at least one of a number of UL control channels, a quality of a UL control channel sub-band based on UL channel estimation, or different service states per UL control channel sub-band.
6. A user equipment (UE) for transmitting an uplink (UL) control channel and a localized sounding reference symbol (SRS), the UE comprising:
a receiver;
a transmitter; and
a processor configured to:
control the receiver to receive, from a base station, first control information for triggering transmission of the uplink control channel and second control information for triggering transmission of the localized SRS;
segment the uplink control channel into a plurality of uplink control channel sub-blocks by using a unit of the localized SRS in a frequency domain based on a predetermined condition being satisfied; and
control the transmitter to transmit the segmented uplink control channel sub-blocks and the triggered localized SRS using a port corresponding to a port of the UL control channel,
wherein the predetermined condition is that a resource for transmitting the triggered uplink control channel overlaps with a resource for transmitting the triggered localized SRS and a length of a frequency band of the localized SRS is less than a length of a coherent bandwidth, and
wherein the segmented uplink control channel sub-blocks are frequency division multiplexed with the triggered localized SRS and transmitted in one symbol.
7. The UE of claim 6 , wherein whether to perform the segmenting is determined based on at least one of a number of UL control channels, a quality of a UL control channel sub-band based on UL channel estimation, or different service states per UL control channel sub-band.