Method and device for wireless communication
View Patent ↗An illustrative aspect, performed by a first node, includes receiving a first radio signal, first information and second information; transmits a second radio signal in a first target slot; herein, the first radio signal is used to indicate a synchronization timing of a first time window, and the first information indicates a first slot out of the first time window; the second information indicates a first time offset; the first target slot is advanced by a second time offset compared with the first slot; the second time offset is related to a first residual time offset, a sum of the first residual time offset plus L1 first time length(s) is equal to the first time offset, L1 being a positive integer; the first residual time offset does not exceed the first time length.
1. A first node for wireless communications, comprising:
a first receiver, receiving a first radio signal, first information and second information; and
a first transmitter, transmitting a second radio signal in a first target slot;
wherein the first radio signal is used to indicate a synchronization timing of a first time window, the first time window comprises a plurality of slots, and the first information indicates a first slot out of the first time window; the second information indicates a first time offset; the first target slot is advanced by a second time offset compared with the first slot; the second time offset is related to a first residual time offset, a sum of the first residual time offset plus L1 first time length(s) is equal to the first time offset, L1 being a positive integer; the first residual time offset does not exceed the first time length; the second time offset does not exceed 2 times the first time length.
2. The first node according to claim 1 , wherein when the first residual time offset is less than a first time threshold, a sum of the first residual time offset plus the first time length is equal to the second time offset; and when the first residual time offset is greater than a first time threshold, the first residual time offset is equal to the second time offset.
3. The first node according to claim 1 , wherein the second information indicates a fourth time offset, the first time offset is linearly correlated with the fourth time offset, and a linear correlation coefficient from the first time offset to the fourth time offset is 1.
4. The first node according to claim 1 , wherein the first transmitter transmits a third radio signal in a second target slot; when the third radio signal is transmitted in uplink, a first index is used to generate the third radio signal, and when the third radio signal is transmitted in sidelink, a second index is used to generate the third radio signal; a product of a difference value obtained by subtracting the first index from the second index multiplied by the first time length is equal to a difference value obtained by subtracting the second time offset from the first time offset.
5. The first node according to claim 4 , wherein the third radio signal is transmitted in sidelink, and the third radio signal indicates the second index.
6. The first node according to claim 4 , wherein the first node is a UE, and a transmitter of the first information is a Non-Terrestrial Network (NTN) base station.
7. The first node according to claim 1 , wherein the first radio signal comprises a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS), and a measurement performed on the first radio signal is used to determine a start time of a multicarrier symbol in the first time window.
8. A second node for wireless communications, comprising:
a second transmitter, transmitting a first radio signal, first information and second information; and
a second processor, processing interferences from a second radio signal, the second radio signal being transmitted in a first target slot;
wherein the first radio signal is used to indicate a synchronization timing of a first time window, the first time window comprises a plurality of slots, and the first information indicates a first slot out of the first time window; the second information indicates a first time offset; the first target slot is advanced by a second time offset compared with the first slot; the second time offset is related to a first residual time offset, a sum of the first residual time offset plus L1 first time length(s) is equal to the first time offset, L1 being a positive integer; the first residual time offset does not exceed the first time length; the second time offset does not exceed 2 times the first time length.
9. The second node according to claim 8 , wherein when the first residual time offset is less than a first time threshold, a sum of the first residual time offset plus the first time length is equal to the second time offset; and when the first residual time offset is greater than a first time threshold, the first residual time offset is equal to the second time offset.
10. The second node according to claim 8 , wherein the second information indicates a fourth time offset, the first time offset is linearly correlated with the fourth time offset, and a linear correlation coefficient from the first time offset to the fourth time offset is 1.
11. A method in a first node for wireless communications, comprising:
receiving a first radio signal, first information and second information; and
transmitting a second radio signal in a first target slot;
wherein the first radio signal is used to indicate a synchronization timing of a first time window, the first time window comprises a plurality of slots, and the first information indicates a first slot out of the first time window; the second information indicates a first time offset; the first target slot is advanced by a second time offset compared with the first slot; the second time offset is related to a first residual time offset, a sum of the first residual time offset plus L1 first time length(s) is equal to the first time offset, L1 being a positive integer; the first residual time offset does not exceed the first time length; the second time offset does not exceed 2 times the first time length.
12. The method in a first node according to claim 11 , wherein when the first residual time offset is less than a first time threshold, a sum of the first residual time offset plus the first time length is equal to the second time offset; and when the first residual time offset is greater than a first time threshold, the first residual time offset is equal to the second time offset.
13. The method in a first node according to claim 11 , wherein the second information indicates a fourth time offset, the first time offset is linearly correlated with the fourth time offset, and a linear correlation coefficient from the first time offset to the fourth time offset is 1.
14. The method in a first node according to claim 11 , wherein the first transmitter transmits a third radio signal in a second target slot; when the third radio signal is transmitted in uplink, a first index is used to generate the third radio signal, and when the third radio signal is transmitted in sidelink, a second index is used to generate the third radio signal; a product of a difference value obtained by subtracting the first index from the second index multiplied by the first time length is equal to a difference value obtained by subtracting the second time offset from the first time offset.
15. The method in a first node according to claim 14 , wherein the third radio signal is transmitted in sidelink, and the third radio signal indicates the second index.
16. The method in a first node according to claim 11 , wherein the first radio signal comprises a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS), and a measurement performed on the first radio signal is used to determine a start time of a multicarrier symbol in the first time window.
17. The first node according to claim 11 , wherein the first node is a UE, and a transmitter of the first information is a Non-Terrestrial Network (NTN) base station.
18. A method in a second node for wireless communications, comprising:
transmitting a first radio signal, first information and second information;
processing interferences from a second radio signal, the second radio signal being transmitted in a first target slot;
wherein the first radio signal is used to indicate a synchronization timing of a first time window, the first time window comprises a plurality of slots, and the first information indicates a first slot out of the first time window; the second information indicates a first time offset; the first target slot is advanced by a second time offset compared with the first slot; the second time offset is related to a first residual time offset, a sum of the first residual time offset plus L1 first time length(s) is equal to the first time offset, L1 being a positive integer; the first residual time offset does not exceed the first time length; the second time offset does not exceed 2 times the first time length.
19. The method in a second node according to claim 18 , wherein when the first residual time offset is less than a first time threshold, a sum of the first residual time offset plus the first time length is equal to the second time offset; and when the first residual time offset is greater than a first time threshold, the first residual time offset is equal to the second time offset.
20. The method in a second node according to claim 18 , wherein the second information indicates a fourth time offset, the first time offset is linearly correlated with the fourth time offset, and a linear correlation coefficient from the first time offset to the fourth time offset is 1.