Method and device for transmitting/receiving sounding reference signals in wireless communication system
Disclosed are a method and device for transmitting/receiving sounding reference signals in a wireless communication system. A method for transmitting sounding reference signal (SRS) according to an embodiment of the present disclosure comprises the steps of: receiving configuration information related to N (N is a natural number) SRS resource sets from a base station; receiving, from the base station, downlink control information (DCI) for triggering the transmission of SRSs on M (M≤N, M is a natural number) SRS resource sets among the N SRS resource sets; and transmitting the SRSs on SRS resources of each of the M SRS resource sets to the base station. The M SRS resource sets may each be related to a different panel of the terminal.
1. A method comprising:
receiving, by a terminal, from a base station, configuration information related to a plurality of resource sets for uplink reference signal transmission;
receiving, by the terminal, from the base station, downlink control information for triggering the uplink reference signal transmission on two resource sets among the plurality of resource sets; and
transmitting, by the terminal, to the base station, the uplink reference signal transmission on one or more resources of each of the two resource sets,
wherein the two resource sets are related to different panels of the terminal,
wherein each slot offset is configured for each of the plurality of resource sets in the configuration information,
wherein the slot offset is an interval between a slot for the downlink control information and an uplink reference signal transmission slot for each of the plurality of resource sets, and wherein, based on the uplink reference signal transmission for the two resource sets colliding in at least one symbol in one slot, the uplink reference signal transmission for a first resource set in which a shorter slot offset is configured is transmitted in the one slot, and the uplink reference signal transmission for a second resource set in which a longer slot offset is configured is transmitted in an uplink slot available for the uplink reference signal transmission after the one slot.
2. The method of claim 1 , wherein the two resource sets are configured with the same usage value.
3. The method of claim 2 , wherein the usage value includes at least one of beam management, codebook, non-codebook, antenna switching and/or positioning.
4. The method of claim 1 , wherein the two resource sets are mapped to different codepoints of one field triggering the uplink reference signal transmission in the downlink control information.
5. The method of claim 4 , wherein the two resource sets are mapped to different panels of the terminal in a predetermined order.
6. The method of claim 1 , wherein the configuration information includes a starting position for the uplink reference signal transmission in a slot and/or the number of symbols for the uplink reference signal transmission in a slot for each resource in the plurality of resource sets.
7. The method of claim 6 , wherein the starting position is updated by the base station.
8. The method of claim 6 , wherein each symbol level offset for each of the two resource sets is indicated by the downlink control information, and
wherein the uplink reference signal transmission in a slot is determined by applying the symbol level offset to the starting position.
9. The method of claim 6 , wherein symbol level offsets for the plurality of resource sets are indicated by the downlink control information.
10. The method of claim 1 , wherein available symbols in a slot are indicated by the downlink control information, and
wherein symbol indexes for the available symbols are re-indexed, and the starting position and/or the number of slots are applied in the re-indexed available symbols.
11. The method of claim 1 , wherein the two resource sets are transmitted repeatedly multiple times over a plurality of slots.
12. A terminal comprising:
at least one transceiver for transmitting and receiving a wireless signal; and
at least one processor for controlling the at least one transceiver,
wherein the at least one processor configured to:
receive, from a base station, configuration information related to a plurality of resource sets for uplink reference signal transmission;
receive, from the base station, downlink control information for triggering the uplink reference signal transmission on two resource sets among the plurality of resource sets; and
transmit, to the base station, the uplink reference signal transmission on one or more resources of each of the two resource sets,
wherein the two resource sets are related to different panels of the terminal,
wherein each slot offset is configured for each of the plurality of resource sets in the configuration information,
wherein the slot offset is an interval between a slot for the downlink control information and an uplink reference signal transmission slot for each of the plurality of resource sets, and
wherein, based on the uplink reference signal transmission for the two resource sets colliding in at least one symbol in one slot, the uplink reference signal transmission for a first resource set in which a shorter slot offset is configured is transmitted in the one slot, and the uplink reference signal transmission for a second resource set in which a longer slot offset is configured is transmitted in an uplink slot available for the uplink reference signal transmission after the one slot.
13. A method comprising:
transmitting, by a base station, to a terminal, configuration information related to a plurality of resource sets for uplink reference signal transmission;
transmitting, by the base station, from the terminal, downlink control information for triggering the uplink reference signal transmission on two resource sets among the plurality of resource sets; and
receiving, by the base station, from the terminal, the uplink reference signal transmission on one or more resources of each of the two resource sets,
wherein the two resource sets are related to different panels of the terminal,
wherein each slot offset is configured for each of the plurality of resource sets in the configuration information,
wherein the slot offset is an interval between a slot for the downlink control information and an uplink reference signal transmission slot for each of the plurality of resource sets, and
wherein, based on the uplink reference signal transmission for the two resource sets colliding in at least one symbol in one slot, the uplink reference signal transmission for a first resource set in which a shorter slot offset is configured is transmitted in the one slot, and the uplink reference signal transmission for a second resource set in which a longer slot offset is configured is transmitted in an uplink slot available for the uplink reference signal transmission after the one slot.