# US 2022/0046679 A1 · Method and device for determination of scheduling timing in communications system

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- Number: US 2022/0046679 A1
- Document ID: US20220046679A1
- Status: Published application
- Kind: A1
- Application number: 17/444,732
- Filed: 2021-08-09
- Published: 2022-02-10
- Earliest claimed: 2020-08-07
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Jeongho YEO; Younsun KIM; Hyunseok RYU; Youngbum KIM; Hosung KIM; Sungjin PARK; Cheolkyu SHIN; Seunghoon CHOI
- Web page: https://patentgrep.com/patent/US20220046679A1

## CPC

- H04B 7/1851: {Systems using a satellite or space-based relay (H04B7/18508, H04B7/18521 take precedence; providing specific services H04B7/18523 - H04B7/18576)}
- H04W 72/1273: of downlink data flows
- H04L 1/1819: {with retransmission of additional or different redundancy}
- H04L 1/1854: {Scheduling and prioritising arrangements}
- H04L 1/1896: {ARQ related signaling}
- H04L 27/26025: {Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking (allocating sub-channels of the transmission path H04L5/003)}
- H04W 56/0045: {compensating for timing error by altering transmission time}
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04W 52/146: {Uplink power control}
- H04B: TRANSMISSION
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

The disclosure relates to a communication technique that converges a 5G communication system for supporting a higher data rate after a 4G system with IoT technology, and a system thereof. The disclosure can be applied to intelligent services (e.g., smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail business, security and safety related services, and the like) based on 5G communication technology and IoT related technology. The disclosure discloses a method and device for a terminal to perform satellite communication.

## Claims

### Claim 1

A method performed by a terminal in a communication system, the method comprising:
receiving, from a base station, a system information block including scheduling offset information;
receiving, from the base station, a first downlink signal associated with a second uplink signal, wherein the first downlink signal is associated with a k value for an uplink transmission timing;
identifying a transmission timing of the second uplink signal based on the scheduling offset information and the k value; and
transmitting, to the base station, the second uplink signal based on the identified transmission timing.

### Claim 2 (depends on 1)

The method of claim 1, wherein the first downlink signal corresponds to a downlink data and the second uplink signal corresponds to hybrid automatic repeat request acknowledgement (HARQ-ACK) information for the downlink data.

### Claim 3 (depends on 1)

The method of claim 1, wherein the first downlink signal corresponds to downlink control information scheduling an uplink data and the second uplink signal corresponds to the uplink data.

### Claim 4 (depends on 1)

The method of claim 1, further comprising:
receiving, from the base station, a timing advance adjustment indicator;
identifying an adjustment timing based on the scheduling offset information; and
applying the timing advance adjustment indicator from the adjustment timing.

### Claim 5 (depends on 4)

The method of claim 4, wherein the adjustment timing is identified based on a subcarrier spacing for an uplink transmission.

### Claim 6

A method performed by a base station in a communication system, the method comprising:
transmitting, to a terminal, a system information block including scheduling offset information;
transmitting, to the terminal, a first downlink signal associated with a second uplink signal, wherein the first downlink signal is associated with a k value for an uplink transmission timing; and
receiving, from the terminal, the second uplink signal based on a transmission timing,
wherein the transmission timing of the second uplink signal depends on the scheduling offset information and the k value.

### Claim 7 (depends on 6)

The method of claim 6, wherein the first downlink signal corresponds to a downlink data and the second uplink signal corresponds to hybrid automatic repeat request acknowledgement (HARQ-ACK) information for the downlink data.

### Claim 8 (depends on 6)

The method of claim 6, wherein the first downlink signal corresponds to downlink control information scheduling an uplink data and the second uplink signal corresponds to the uplink data.

### Claim 9 (depends on 6)

The method of claim 6, further comprising:
transmitting, to the terminal, a timing advance adjustment indicator,
wherein an adjustment timing of the timing advanced adjustment indicator depends on the scheduling offset information.

### Claim 10 (depends on 9)

The method of claim 9, wherein the adjustment timing is identified based on a subcarrier spacing for an uplink transmission.

### Claim 11

A terminal in a communication system, the terminal comprising:
a transceiver; and
a controller coupled with the transceiver and configured to:
receive, from a base station, a system information block including scheduling offset information,
receive, from the base station, a first downlink signal associated with a second uplink signal, wherein the first downlink signal is associated with a k value for an uplink transmission timing,
identify a transmission timing of the second uplink signal based on the scheduling offset information and the k value, and
transmit, to the base station, the second uplink signal based on the identified transmission timing.

### Claim 12 (depends on 11)

The terminal of claim 11, wherein the first downlink signal corresponds to a downlink data and the second uplink signal corresponds to hybrid automatic repeat request acknowledgement (HARQ-ACK) information for the downlink data.

### Claim 13 (depends on 11)

The terminal of claim 11, wherein the first downlink signal corresponds to downlink control information scheduling an uplink data and the second uplink signal corresponds to the uplink data.

### Claim 14 (depends on 11)

The terminal of claim 11, wherein the controller is further configured to:
receive, from the base station, a timing advance adjustment indicator;
identify an adjustment timing based on the scheduling offset information; and
apply the timing advance adjustment indicator from the adjustment timing.

### Claim 15 (depends on 14)

The terminal of claim 14, wherein the adjustment timing is identified based on a subcarrier spacing for an uplink transmission.

### Claim 16

Abase station in a communication system, the base station comprising:
a transceiver; and
a controller coupled with the transceiver and configured to:
transmit, to a terminal, a system information block including scheduling offset information,
transmit, to the terminal, a first downlink signal associated with a second uplink signal, wherein the first downlink signal is associated with a k value for an uplink transmission timing, and
receive, from the terminal, the second uplink signal based on a transmission timing,
wherein the transmission timing of the second uplink signal depends on the scheduling offset information and the k value.

### Claim 17 (depends on 16)

The base station of claim 16, wherein the first downlink signal corresponds to a downlink data and the second uplink signal corresponds to hybrid automatic repeat request acknowledgement (HARQ-ACK) information for the downlink data.

### Claim 18 (depends on 16)

The base station of claim 16, wherein the first downlink signal corresponds to downlink control information scheduling an uplink data and the second uplink signal corresponds to the uplink data.

### Claim 19 (depends on 16)

The base station of claim 16, wherein the controller is further configured to:
transmit, to the terminal, a timing advance adjustment indicator,
wherein an adjustment timing of the timing advanced adjustment indicator depends on the scheduling offset information.

### Claim 20 (depends on 19)

The base station of claim 19, wherein the adjustment timing is identified based on a subcarrier spacing for an uplink transmission.
