METHOD AND DEVICE IN NODES USED FOR WIRELESS COMMUNICATION
The node firstly transmits a first information block and a second information block, the first information block indicating a first terminal capability value set, with candidates for the first terminal capability value set including K1 terminal capability values, and the second information block indicating multiple first-type time values, and the first information block and the second information block both indicating a first time value; and transmits a reference signal in each SRS resource of a first time-frequency resource set, the first time-frequency resource set comprising at least one SRS resource; the first time-frequency resource set is known at a location-based service center, and a transmission timing error of a reference signal transmitted in any SRS resource of the first time-frequency resource set does not exceed the first time value. This application improves the accuracy of positioning measurement under multi-panel terminals and optimizes system performance.
1 . A first node for wireless communications, comprising:
a first transmitter, transmitting a first information block and a second information block, the first information block indicating a first terminal capability value set, with candidates for the first terminal capability value set including K1 terminal capability values, and the second information block indicating multiple first-type time values, and the first information block and the second information block both indicating a first time value, the first time value being one of the multiple first-type time values; and transmitting a reference signal in each SRS resource of a first time-frequency resource set, the first time-frequency resource set comprising at least one SRS resource;
wherein the first time-frequency resource set is known at a location-based service center, and a transmission timing error of a reference signal transmitted in any SRS resource of the first time-frequency resource set does not exceed the first time value.
2 . The first node according to claim 1 , characterized in comprising:
the first transmitter, transmitting a first CSI set, the first CSI set comprising at least one CSI;
wherein the first information block indicates that the first CSI set is associated with the first terminal capability value set.
3 . The first node according to claim 1 , characterized in comprising:
a first receiver, receiving a third information block;
wherein the third information block is used to determine a first time-frequency resource pool, the first time-frequency resource pool comprising the first time-frequency resource set.
4 . The first node according to claim 1 , characterized in that the second information block is used to indicate a first identity, the first time-frequency resource set being associated with the first identity.
5 . The first node according to claim 2 , characterized in comprising:
the first receiver, receiving a first signal in a second time-frequency resource set;
wherein the first signal is used to generate the first CSI set.
6 . The first node according to claim 1 , characterized in that a receiver of the reference signal transmitted in each SRS resource of the first time-frequency resource set includes a second node, the second node being associated with L1 second-type time values, L1 being a positive integer greater than 1; the second node transmits a first measurement value set, the L1 second-type time values respectively generating L1 measurement values based on reception of a first reference signal, the first measurement value set comprising the L1 measurement values;
any measurement value among the L1 measurement values includes RTOA; the first reference signal is a reference signal transmitted in at least one SRS resource of the first time-frequency resource set.
7 . The first node according to claim 1 , characterized in comprising:
a first receiver, receiving a fourth information block;
wherein the fourth information block is used to trigger that the first information block and the second information block are used together to indicate the first time value; a measurement result for transmitting the reference signal in the SRS resource in the first time-frequency resource set is a second measurement value set;
a type of the second measurement value set is either a first type or a second type; the first type includes UL TDOA, and the second type includes multi-RTT; a type of a transmitter of the fourth information block is one of a base station or LMF; the type of the second measurement value set is used to determine a type of a receiver of the second measurement value set.
8 . The first node according to claim 1 , characterized in that the first information block indicates a first index, the first index being associated with the first terminal capability value set.
9 . The first node according to claim 1 , characterized in that the location-based service center includes at least one of LMF or AMF.
10 . The first node according to claim 1 , characterized in that that the first time-frequency resource set is known at a location-based service center means at least one of:
the first time-frequency resource set is configured directly via the location-based service center; or
the first time-frequency resource set is configured to a base station via the location-based service center and then to the first node via the base station; or
the first time-frequency resource set is unknown at the base station; or
the first time-frequency resource set is communicated to a serving base station of the first node via the first node; or
the first time-frequency resource set is configured following LTE Positioning Protocol (LPP); or
the first time-frequency resource set is configured following NR Positioning Protocol A (NRPPA).
11 . A second node for wireless communications, comprising:
a second receiver, receiving a first information block and a second information block, the first information block indicating a first terminal capability value set, with candidates for the first terminal capability value set including K1 terminal capability values, and the second information block indicating multiple first-type time values, and the first information block and the second information block both indicating a first time value, the first time value being one of the multiple first-type time values; and receiving a reference signal in each SRS resource of a first time-frequency resource set, the first time-frequency resource set comprising at least one SRS resource;
wherein the first time-frequency resource set is known at a location-based service center, and a transmission timing error of a reference signal transmitted in any SRS resource of the first time-frequency resource set does not exceed the first time value.
12 . The second node according to claim 11 , characterized in comprising:
the second receiver, receiving a first CSI set, the first CSI set comprising at least one CSI;
wherein the first information block indicates that the first CSI set is associated with the first terminal capability value set.
13 . The second node according to claim 11 , characterized in comprising:
a second transmitter, transmitting a third information block;
wherein the third information block is used to determine a first time-frequency resource pool, the first time-frequency resource pool comprising the first time-frequency resource set.
14 . The second node according to claim 11 , characterized in that the second information block is used to indicate a first identity, the first time-frequency resource set being associated with the first identity.
15 . The second node according to claim 12 , characterized in comprising:
the second transmitter, transmitting a first signal in a second time-frequency resource set;
wherein the first signal is used to generate the first CSI set.
16 . The second node according to claim 11 , characterized in that the second node is associated with L1 second-type time values, L1 being a positive integer greater than 1; the second node transmits a first measurement value set, the L1 second-type time values respectively generating L1 measurement values based on reception of a first reference signal, the first measurement value set comprising the L1 measurement values; any measurement value among the L1 measurement values includes RTOA; the first reference signal is a reference signal transmitted in at least one SRS resource of the first time-frequency resource set.
17 . The second node according to claim 11 , characterized in comprising:
the second transmitter, transmitting a fourth information block;
wherein the fourth information block is used to trigger that the first information block and the second information block are used together to indicate the first time value; a measurement result for transmitting the reference signal in the SRS resource in the first time-frequency resource set is a second measurement value set;
a type of the second measurement value set is either a first type or a second type; the first type includes UL TDOA, and the second type includes multi-RTT; a type of the second node is one of a base station or LMF; the type of the second measurement value set is used to determine a type of a receiver of the second measurement value set.
18 . A method in a first node for wireless communications, comprising:
transmitting a first information block and a second information block, the first information block indicating a first terminal capability value set, with candidates for the first terminal capability value set including K1 terminal capability values, and the second information block indicating multiple first-type time values, and the first information block and the second information block both indicating a first time value, the first time value being one of the multiple first-type time values; and transmitting a reference signal in each SRS resource of a first time-frequency resource set, the first time-frequency resource set comprising at least one SRS resource;
wherein the first time-frequency resource set is known at a location-based service center, and a transmission timing error of a reference signal transmitted in any SRS resource of the first time-frequency resource set does not exceed the first time value.
19 . The method in the first node according to claim 18 , characterized in comprising:
transmitting a first CSI set, the first CSI set comprising at least one CSI;
wherein the first information block indicates that the first CSI set is associated with the first terminal capability value set.
20 . The method in the first node according to claim 18 , characterized in comprising:
receiving a third information block;
wherein the third information block is used to determine a first time-frequency resource pool, the first time-frequency resource pool comprising the first time-frequency resource set.