# US 9,883,494 B2 · Method and apparatus for transmitting uplink control information in a wireless communication system

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- Number: US 9,883,494 B2
- Document ID: US9883494B2
- Status: Granted
- Kind: B2
- Application number: 15/390,290
- Filed: 2016-12-23
- Published: 2017-04-20
- Granted: 2018-01-30
- Earliest claimed: 2010-03-10
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Min Gyu Kim; Suck Chel Yang; Joon Kui Ahn; Dong Youn Seo
- Web page: https://patentgrep.com/patent/US9883494B2

## CPC

- H04L 5/001: {the frequencies being arranged in component carriers}
- H04J 13/16: Code allocation
- H04L 1/0073: {Special arrangements for feedback channel}
- H04L 1/1671: {the supervisory signal being transmitted together with control information}
- H04L 1/1692: {Physical properties of the supervisory signal, e.g. acknowledgement by energy bursts}
- H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ]
- H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)}
- H04L 5/0019: {in which one code is applied, as a temporal sequence, to all frequencies}
- H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)}
- H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information}
- H04L 27/2634: {Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation}
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 72/0473: {the resource being transmission power}
- H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network
- H04L 1/0026: {Transmission of channel quality indication}
- H04L 1/08: by repeating transmission, e.g. Verdan system {(H04L1/1858 and H04L1/189 take precedence)}
- H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT}
- H04L 27/2626: {Arrangements specific to the transmitter only}
- 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]}
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04J: MULTIPLEX COMMUNICATION (transmission in general H04B; peculiar to transmission of digital information H04L5/00; systems for the simultaneous or sequential transmission of more than one television signal H04N7/08; in exchanges H04Q11/00; stereophonic systems H04S)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A method and apparatus for transmitting control information are discussed. The method can include generating uplink control information (UCI) and transmitting the UCI through an physical uplink control channel (PUCCH) in a subframe, wherein when the subframe is configured for transmission of a scheduling request (SR) and when transmission of a hybrid automatic repeat request (HARD)-acknowledgement (ACK) coincides with the subframe, transmission power of the PUCCH is determined based on a number of HARQ-ACK information bits and a SR bit. A value of the SR bit can be determined by whether or not the subframe is configured for a scheduling request.

## Claims

### Claim 1

A method for receiving control information, performed by a base station (BS), in a wireless communication system, the method comprising:
configuring a subframe for receiving uplink control information (UCI) from a user equipment (UE); and
receiving the UCI transmitted from the UE through a physical uplink control channel (PUCCH) in the subframe,
wherein when the subframe is configured for receiving a scheduling request (SR) and when a reception of a hybrid automatic repeat request-acknowledgement (HARQ-ACK) coincides with the subframe, transmission power of the PUCCH is determined based on a payload size of a sum of the HARQ-ACK and the SR, and
wherein a payload size of the SR is one bit.

### Claim 2 (depends on 1)

The method of claim 1, wherein the UCI comprises HARQ-ACK information bits and an SR bit.

### Claim 3 (depends on 2)

The method of claim 2, wherein the SR bit is appended at the end of the HARQ-ACK information bits.

### Claim 4 (depends on 1)

The method of claim 1, wherein the payload size of the sum of the HARQ-ACK and the SR is determined based on a number of HARQ-ACK information bits and an SR bit.

### Claim 5

An apparatus for receiving control information, the apparatus comprising:
a radio frequency (RF) unit configured to transmit or receive a radio signal; and
a processor coupled to the RF unit,
wherein the processor is configured to:
configure a subframe for receiving uplink control information (UCI) from a user equipment (UE); and
receive the UCI transmitted from the UE through a physical uplink control channel (PUCCH) in the subframe,
wherein when the subframe is configured for receiving a scheduling request (SR) and when a reception of a hybrid automatic repeat request-acknowledgement (HARQ-ACK) coincides with the subframe, transmission power of the PUCCH is determined based on a payload size of a sum of the HARQ-ACK and the SR, and
wherein a payload size of the SR is one bit.

### Claim 6 (depends on 5)

The apparatus of claim 5, wherein the UCI comprises HARQ-ACK information bits and an SR bit.

### Claim 7 (depends on 6)

The apparatus of claim 6, wherein the SR bit is appended at the end of the HARQ-ACK information bits.

### Claim 8 (depends on 5)

The apparatus of claim 5, wherein the payload size of the sum of the HARQ-ACK and the SR is determined based on a number of HARQ-ACK information bits and an SR bit.

### Claim 9 (depends on 5)

The apparatus of claim 5, wherein the apparatus is a base station (BS).