# US 12,192,133 B2 · Method and device for wireless communication

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- Number: US 12,192,133 B2
- Document ID: US12192133B2
- Status: Granted
- Kind: B2
- Application number: 17/744,761
- Filed: 2022-05-16
- Published: 2022-09-01
- Granted: 2025-01-07
- Earliest claimed: 2019-11-19
- Assignees: Shanghai Langbo Communication Technology Company Limited
- Applicants: Bunker Hill Technologies LLC
- Inventors: Xiaobo Zhang
- Web page: https://patentgrep.com/patent/US12192133B2

## CPC

- H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)}
- H04L 5/0062: {Avoidance of ingress interference, e.g. ham radio channels}
- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W 4/70: Services for machine-to-machine communication [M2M] or machine type communication [MTC]
- H04W 56/00: Synchronisation arrangements
- H04W 56/001: {Synchronization between nodes}
- H04W 84/06: Airborne or Satellite Networks (space-based or airborne stations H04B7/185)
- H04W 92/18: between terminal devices
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

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.

## Claims

### Claim 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.

### Claim 2 (depends on 1)

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.

### Claim 3 (depends on 1)

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.

### Claim 4 (depends on 1)

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.

### Claim 5 (depends on 4)

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.

### Claim 6 (depends on 4)

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.

### Claim 7 (depends on 1)

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.

### Claim 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.

### Claim 9 (depends on 8)

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.

### Claim 10 (depends on 8)

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.

### Claim 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.

### Claim 12 (depends on 11)

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.

### Claim 13 (depends on 11)

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.

### Claim 14 (depends on 11)

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.

### Claim 15 (depends on 14)

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.

### Claim 16 (depends on 11)

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.

### Claim 17 (depends on 11)

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.

### Claim 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.

### Claim 19 (depends on 18)

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.

### Claim 20 (depends on 18)

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.
