# US 12,010,629 B2 · Method and device for uplink power control

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- Number: US 12,010,629 B2
- Document ID: US12010629B2
- Status: Granted
- Kind: B2
- Application number: 17/988,348
- Filed: 2022-11-16
- Published: 2023-03-16
- Granted: 2024-06-11
- Earliest claimed: 2017-04-17
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Jingxing Fu; Chen Qian; Yingjie Zhang; Bin Yu; Qi Xiong; Feifei Sun
- Web page: https://patentgrep.com/patent/US12010629B2

## CPC

- H04L 27/2646: {using feedback from receiver for adjusting OFDM transmission parameters, e.g. transmission timing or guard interval length}
- H04W 52/146: {Uplink power control}
- H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 5/0092: {Indication of how the channel is divided}
- H04W 52/16: Deriving transmission power values from another channel
- H04W 52/325: {Power control of control or pilot channels}
- H04W 52/36: with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W 52/58: Format of the TPC bits
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04W 80/08: Upper layer protocols {(network arrangements or communication protocols for networked applications H04L67/00)}
- H04L 27/2636: {with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]}
- H04W 52/281: {taking into account user or data type priority}
- H04W 52/346: {distributing total power among users or channels}
- 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

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure provides a method for uplink power control, which is applied to a User Equipment (UE), and the method includes: determining a timing between a power control command and a Physical Uplink Control Channel (PUCCH), which adopts the power control command to control power. The present disclosure also provides a corresponding device.

## Claims

### Claim 1

A method performed by a terminal in a communication system, the method comprising:
receiving, from a base station, information on bandwidth parts (BWPs);
receiving, from the base station, downlink control information (DCI) including information indicating BWP switching;
performing the BWP switching to a BWP indicated by the information; and
receiving, from the base station, a physical downlink control channel (PDCCH) on the BWP from a beginning of a slot
indicated by an offset of a physical downlink shared channel (PDSCH) scheduled by the DCI,
wherein the PDCCH is not received on the BWP during a time duration from a slot where the terminal receives the DCI until the beginning of the slot, and
wherein the information on the BWPs indicates one of the BWPs for the BWP switching.

### Claim 2 (depends on 1)

The method of claim 1, wherein PDCCH reception is started on the BWP from the beginning of the slot.

### Claim 3 (depends on 1)

The method of claim 1, wherein the BWP is an activated BWP.

### Claim 4

A method performed by a base station in a communication system, the method comprising:
transmitting, to a terminal, information on bandwidth parts (BWPs);
transmitting, to the terminal, downlink control information (DCI) including information indicating BWP switching;
performing the BWP switching to a BWP indicated by the information; and
transmitting, to the terminal, a physical downlink control channel (PDCCH) on the BWP from a beginning of a slot,
indicated by an offset of a physical downlink shared channel (PDSCH) scheduled by the DCI,
wherein the PDCCH is not transmitted on the BWP during a time duration from a slot where the terminal receives the DCI until the beginning of the slot, and
wherein the information on the BWPs indicates one of the BWPs for the BWP switching.

### Claim 5 (depends on 4)

The method of claim 4, wherein PDCCH transmission is started on the BWP from the beginning of the slot.

### Claim 6 (depends on 4)

The method of claim 4, wherein the BWP is an activated BWP.

### Claim 7

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, information on bandwidth parts (BWPs),
receive, from the base station, downlink control information (DCI) including information indicating bandwidth part BWP switching,
perform the BWP switching to a BWP indicated by the information, and
receive, from the base station, a physical downlink control channel (PDCCH) on the BWP from a beginning of a slot,
indicated by an offset of a physical downlink shared channel (PDSCH) scheduled by the DCI,
wherein the PDCCH is not received on the BWP during a time duration from a slot where the terminal receives the DCI until the beginning of the slot, and
wherein the information on the BWPs indicates one of the BWPs for the BWP switching.

### Claim 8 (depends on 7)

The terminal of claim 7, wherein PDCCH reception is started on the BWP from the beginning of the slot.

### Claim 9 (depends on 7)

The terminal of claim 7, wherein the BWP is an activated BWP.

### Claim 10

A base 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, information on bandwidth parts (BWPs),
transmit, to the terminal, downlink control information (DCI) including information indicating BWP switching,
perform the BWP switching to a BWP indicated by the information, and
transmit, to the terminal, a physical downlink control channel (PDCCH) on the BWP from a beginning of a slot,
indicated by an offset of a physical downlink shared channel (PDSCH) scheduled by the DCI,
wherein the PDCCH is not transmitted on the BWP during a time duration from a slot where the terminal receives the DCI until the beginning of the slot, and
wherein the information on the BWPs indicates one of the BWPs for the BWP switching.

### Claim 11 (depends on 10)

The base station of claim 10, wherein PDCCH transmission is started on the BWP from the beginning of the slot.

### Claim 12 (depends on 10)

The base station of claim 10, wherein the BWP is an activated BWP.
