# US 10,772,116 B2 · Method and apparatus for transmitting/receiving wireless signal in wireless communication system

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- Number: US 10,772,116 B2
- Document ID: US10772116B2
- Status: Granted
- Kind: B2
- Application number: 16/656,164
- Filed: 2019-10-17
- Published: 2020-04-16
- Granted: 2020-09-08
- Earliest claimed: 2018-01-12
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Hanjun Park; Suckchel Yang; Seonwook Kim
- Web page: https://patentgrep.com/patent/US10772116B2

## CPC

- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04W 72/1263: Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04L 1/1819: {with retransmission of additional or different redundancy}
- H04L 1/1854: {Scheduling and prioritising arrangements}
- H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)}
- 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}
- H04W 72/02: Selection of wireless resources by user or terminal
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 72/12: Wireless traffic scheduling
- H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04W 76/11: Allocation or use of connection identifiers
- H04W 76/27: Transitions between radio resource control [RRC] states
- H04L 1/1671: {the supervisory signal being transmitted together with control information}
- H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT}
- 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 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal}
- H04L 5/1469: {using time-sharing}
- 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

A wireless communication system is disclosed. More particularly, disclosed herein are a method including receiving downlink scheduling information on a PDCCH, the downlink scheduling information comprising resource indication information (RI), selecting a first PUCCH resource set from among a plurality of PUCCH resource sets based on a size of the control information, and transmitting the control information using a PUCCH resource corresponding to the RI in the first PUCCH resource set, wherein, when a control information size supported by the first PUCCH resource set is less than or equal to X (>=1) bits, the PUCCH resource is determined using one of a first scheme and a second scheme, and wherein, when the control information size supported by the first PUCCH resource set is greater than X bits, the PUCCH resource is determined using only the second scheme, and an apparatus therefor.

## Claims

### Claim 1

A method for performing uplink transmission by a communication device in a wireless communication system, the method comprising:
receiving downlink control information (DCI) for downlink scheduling, the DCI comprising resource indication information (RI);
receiving downlink data indicated by the DCI; and
transmitting uplink control information (UCI) including hybrid automatic repeat request acknowledgement (HARQ-ACK) information for the downlink data using a PUCCH resource corresponding to the RI in a physical uplink control channel (PUCCH) resource set, wherein the PUCCH resource set is selected from a plurality of PUCCH resource sets based on a size of the UCI,
wherein, based on a UCI size supported by the PUCCH resource set being less than or equal to X (>=1) bits, the PUCCH resource is determined using one of a first scheme and a second scheme, and
wherein, based on the UCI size supported by the PUCCH resource set being greater than X bits, the PUCCH resource is determined using only the second scheme:
the first scheme: the PUCCH resource in the PUCCH resource set is determined based on both the RI and an index of a resource used for reception of the DCI; and
the second scheme: the PUCCH resource in the PUCCH resource set is determined based on the RI only.

### Claim 2 (depends on 1)

The method according to claim 1, wherein X is 2.

### Claim 3 (depends on 2)

The method according to claim 2, wherein, when the UCI size supported by the PUCCH resource set is less than or equal to X (>=1) bits, the first scheme or the second scheme is used based on the number of PUCCH resources in the PUCCH resource set.

### Claim 4 (depends on 3)

The method according to claim 3, wherein, when the UCI size supported by the PUCCH resource set is less than or equal to X (>=1) bits and the number of PUCCH resources in the PUCCH resource set is greater than a reference value, the PUCCH resource is determined using the first scheme,
wherein the reference value is equal to the number of values representable by the RI.

### Claim 5 (depends on 3)

The method according to claim 3, wherein, when the UCI size supported by the PUCCH resource set is less than or equal to X (>=1) bits and the number of PUCCH resources in the first PUCCH resource set is less than or equal to a reference value, the PUCCH resource is determined using the second scheme,
wherein the reference value is equal to the number of values representable by the RI.

### Claim 6 (depends on 1)

The method according to claim 1, wherein X is 2.

### Claim 7

A communication apparatus for use in a wireless communication system, comprising:
a memory; and
a processor, the processor being configured to:
receive downlink control information (DCI) for downlink scheduling information, the DCI comprising resource indication information (RI);
receive downlink data indicated by the DCI; and
transmit uplink control information (UCI) including hybrid automatic repeat request acknowledgement (HARQ-ACK) information for the downlink data using a physical uplink control channel (PUCCH) resource corresponding to the RI in a PUCCH resource set, wherein the PUCCH resource set is selected from a plurality of PUCCH resource sets based on a size of the UCI,
wherein, based on a UCI size supported by the PUCCH resource set being less than or equal to X (>=1) bits, the PUCCH resource is determined using one of a first scheme and a second scheme, and
wherein, based on the UCI size supported by the PUCCH resource set being greater than X bits, the PUCCH resource is determined using only the second scheme:
the first scheme: the PUCCH resource in the PUCCH resource set is determined based on both the RI and an index of a resource used for reception of the DCI; and
the second scheme: the PUCCH resource in the PUCCH resource set is determined based on the RI only.

### Claim 8 (depends on 7)

The communication apparatus according to claim 7, wherein X is 2.

### Claim 9 (depends on 8)

The communication apparatus according to claim 8, wherein, when the UCI size supported by the PUCCH resource set is less than or equal to X (>=1) bits, the first scheme or the second scheme is used based on the number of PUCCH resources in the PUCCH resource set.

### Claim 10 (depends on 9)

The communication apparatus according to claim 9, wherein, when the UCI size supported by the PUCCH resource set is less than or equal to X (>=1) bits and the number of PUCCH resources in the PUCCH resource set is greater than a reference value, the PUCCH resource is determined using the first scheme,
wherein the reference value is equal to the number of values representable by the RI.

### Claim 11 (depends on 9)

The communication apparatus according to claim 9, wherein, when the UCI size supported by the PUCCH resource set is less than or equal to X (>=1) bits and the number of PUCCH resources in the PUCCH resource set is less than or equal to a reference value, the PUCCH resource is determined using the second scheme,
wherein the reference value is equal to the number of values representable by the RI.

### Claim 12 (depends on 9)

The communication apparatus according to claim 9, wherein based on the size of the UCI being less than or equal to X (>=1) bits, and based on the number of the PUCCH resources in the PUCCH resource set being greater than a reference value, the PUCCH resource is determined according to the first scheme,
wherein the reference value is equal to a number of values representable by the PUCCH resource indicator.

### Claim 13

A method for receiving control information by a communication apparatus in a wireless communication system, the method comprising:
transmitting downlink control information (DCI) for downlink scheduling, the DCI comprising resource indication information (RI);
transmitting downlink data indicated by the DCI; and
receiving uplink control information (UCI) including hybrid automatic repeat request acknowledgement (HARQ-ACK) information for the downlink data using a physical uplink control channel (PUCCH) resource corresponding to the RI in a PUCCH resource set, wherein the PUCCH resource set is selected from a plurality of PUCCH resource sets based on a size of the UCI,
wherein, based on a UCI size supported by the PUCCH resource set being less than or equal to X (>=1) bits, the PUCCH resource is determined using one of a first scheme and a second scheme, and
wherein, based on the UCI size supported by the PUCCH resource set being greater than X bits, the PUCCH resource is determined using only the second scheme:
the first scheme: the PUCCH resource in the PUCCH resource set is determined based on both the RI and an index of a resource used for reception of the DCI; and
the second scheme: the PUCCH resource in the PUCCH resource set is determined based on the RI only.

### Claim 14 (depends on 13)

The method according to claim 13, wherein X is 2.

### Claim 15 (depends on 14)

The method according to claim 14, wherein, when the UCI size supported by the PUCCH resource set is less than or equal to X (>=1) bits, the first scheme or the second scheme is used based on the number of PUCCH resources in the PUCCH resource set.

### Claim 16 (depends on 15)

The method according to claim 15, wherein, when the UCI size supported by the PUCCH resource set is less than or equal to X (>=1) bits and the number of PUCCH resources in the PUCCH resource set is greater than a reference value, the PUCCH resource is determined using the first scheme,
wherein the reference value is equal to the number of values representable by the RI.

### Claim 17 (depends on 15)

The method according to claim 15, wherein, when the UCI size supported by the PUCCH resource set is less than or equal to X (>=1) bits and the number of PUCCH resources in the PUCCH resource set is less than or equal to a reference value, the PUCCH resource is determined using the second scheme,
wherein the reference value is equal to the number of values representable by the RI.

### Claim 18

A communication apparatus for use in a wireless communication system, comprising:
a memory; and
a processor, the processor being configured to:
transmit downlink control information (DCI) for downlink scheduling, the DCI comprising resource indication information (RI);
transmit downlink data indicated by the DCI; and
receive uplink control information (UCI) including hybrid automatic repeat request acknowledgement (HARQ-ACK) information for the downlink data using a physical uplink control channel (PUCCH) resource corresponding to the RI in a PUCCH resource set, wherein the PUCCH resource set is selected from a plurality of PUCCH resource sets based on a size of the UCI,
wherein, based on a UCI size supported by the PUCCH resource set being less than or equal to X (>=1) bits, the PUCCH resource is determined using one of a first scheme and a second scheme, and
wherein, based on the UCI size supported by the PUCCH resource set being greater than X bits, the PUCCH resource is determined using only the second scheme:
the first scheme: the PUCCH resource in the PUCCH resource set is determined based on both the RI and an index of a resource used for reception of the DCI; and
the second scheme: the PUCCH resource in the PUCCH resource set is determined based on the RI only.

### Claim 19 (depends on 18)

The communication apparatus according to claim 18, wherein X is 2.

### Claim 20 (depends on 19)

The communication apparatus according to claim 19, wherein, when the UCI size supported by the PUCCH resource set is less than or equal to X (>=1) bits, the first scheme or the second scheme is used based on the number of PUCCH resources in the PUCCH resource set.

### Claim 21 (depends on 20)

The communication apparatus according to claim 20, wherein, when the UCI size supported by the PUCCH resource set is less than or equal to X (>=1) bits and the number of PUCCH resources in the PUCCH resource set is greater than a reference value, the PUCCH resource is determined using the first scheme,
wherein the reference value is equal to the number of values representable by the RI.

### Claim 22 (depends on 20)

The communication apparatus according to claim 20, wherein, when the UCI size supported by the PUCCH resource set is less than or equal to X (>=1) bits and the number of PUCCH resources in the PUCCH resource set is less than or equal to a reference value, the PUCCH resource is determined using the second scheme,
wherein the reference value is equal to the number of values representable by the RI.

### Claim 23 (depends on 18)

The communication apparatus according to claim 18, wherein X is 2.

### Claim 24

A method performed by a user equipment (UE) operating in a wireless communication system, the method comprising:
receiving downlink control information (DCI) comprising (i) downlink scheduling information for receiving downlink data, and (ii) a physical uplink control channel (PUCCH) resource indicator for transmitting uplink control information (UCI), wherein the UCI includes hybrid automatic repeat request acknowledgement (HARQ-ACK) information for the downlink data;
receiving the downlink data based on the downlink scheduling information;
determining, based on a size of the UCI, a PUCCH resource set from among a plurality of PUCCH resource sets that are configured for the UE;
determining, from among PUCCH resources in the PUCCH resource set and based on the PUCCH resource indicator in the DCI, a PUCCH resource on which to transmit the UCI; and
transmitting, on the PUCCH resource, the UCI including the HARQ-ACK information for the received downlink data,
wherein determining the PUCCH resource from among the PUCCH resources in the PUCCH resource set comprises:
based on the size of the UCI being less than or equal to X (>=1) bits, determining the PUCCH resource according to one of a first scheme or a second scheme; and
based on the size of the UCI being greater than X bits, determining the PUCCH resource according to only the second scheme,
wherein according to the first scheme, the PUCCH resource in the PUCCH resource set is determined based on both (i) the PUCCH resource indicator that was included in the DCI, and (ii) an index of a downlink resource that was used for reception of the DCI, and
wherein according to the second scheme, the PUCCH resource in the PUCCH resource set is determined based on the PUCCH resource indicator, but not based on the index of the downlink resource that was used for reception of the DCI.

### Claim 25 (depends on 24)

The method according to claim 24, wherein based on the size of the UCI being less than or equal to X (>=1) bits, the first scheme or the second scheme is used based on a number of the PUCCH resources in the PUCCH resource set.

### Claim 26 (depends on 25)

The method according to claim 25, wherein based on the size of the UCI being less than or equal to X (>=1) bits, and based on the number of the PUCCH resources in the PUCCH resource set being greater than a reference value, the PUCCH resource is determined according to the first scheme,
wherein the reference value is equal to a number of values representable by the PUCCH resource indicator.

### Claim 27 (depends on 25)

The method according to claim 25, wherein based on the size of the UCI being less than or equal to X (>=1) bits, and based on the number of the PUCCH resources in the first PUCCH resource set being less than or equal to a reference value, the PUCCH resource is determined according to the second scheme,
wherein the reference value is equal to a number of values representable by the PUCCH resource indicator.

### Claim 28

A communication apparatus configured to control a user equipment (UE) to operate in a wireless communication system, the communication apparatus comprising:
at least one processor; and
at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising:
receiving downlink control information (DCI) comprising (i) downlink scheduling information for receiving downlink data, and (ii) a physical uplink control channel (PUCCH) resource indicator for transmitting uplink control information (UCI), wherein the UCI includes hybrid automatic repeat request acknowledgement (HARQ-ACK) information for the downlink data;
receiving the downlink data based on the downlink scheduling information;
determining, based on a size of the UCI, a PUCCH resource set from among a plurality of PUCCH resource sets that are configured for the UE;
determining, from among PUCCH resources in the PUCCH resource set and based on the PUCCH resource indicator in the DCI, a PUCCH resource on which to transmit the UCI; and
transmitting, on the PUCCH resource, the UCI including the HARQ-ACK information for the received downlink data,
wherein determining the PUCCH resource from among the PUCCH resources in the PUCCH resource set comprises:
based on the size of the UCI being less than or equal to X (>=1) bits, determining the PUCCH resource according to one of a first scheme or a second scheme; and
based on the size of the UCI being greater than X bits, determining the PUCCH resource according to only the second scheme,
wherein according to the first scheme, the PUCCH resource in the PUCCH resource set is determined based on both (i) the PUCCH resource indicator that was included in the DCI, and (ii) an index of a downlink resource that was used for reception of the DCI, and
wherein according to the second scheme, the PUCCH resource in the PUCCH resource set is determined based on the PUCCH resource indicator, but not based on the index of the downlink resource that was used for reception of the DCI.

### Claim 29 (depends on 28)

The communication apparatus according to claim 28, wherein X is 2.

### Claim 30 (depends on 28)

The communication apparatus according to claim 28, wherein based on the size of the UCI being less than or equal to X (>=1) bits, the first scheme or the second scheme is used based on a number of the PUCCH resources in the PUCCH resource set.

### Claim 31 (depends on 30)

The communication apparatus according to claim 30, wherein based on the size of the UCI being less than or equal to X (>=1) bits, and based on the number of the PUCCH resources in the first PUCCH resource set being less than or equal to a reference value, the PUCCH resource is determined according to the second scheme,
wherein the reference value is equal to a number of values representable by the PUCCH resource indicator.

### Claim 32

A method performed by a base station operating in a wireless communication system, the method comprising:
transmitting downlink control information (DCI) comprising (i) downlink scheduling information for transmitting downlink data, and (ii) a physical uplink control channel (PUCCH) resource indicator for receiving uplink control information (UCI);
transmitting the downlink data based on the downlink scheduling information; and
receiving, on the PUCCH resource, the UCI including hybrid automatic repeat request acknowledgement (HARQ-ACK) information for the transmitted downlink data,
wherein, based on a size of the UCI being less than or equal to X (>=1) bits, the PUCCH resource is determined according to one of a first scheme or a second scheme, and
wherein, based on the size of the UCI being greater than X bits, the PUCCH resource is determined according to only the second scheme:
wherein according to the first scheme, the PUCCH resource in the PUCCH resource set is determined based on both (i) the PUCCH resource indicator that was included in the DCI, and (ii) an index of a downlink resource that was used for reception of the DCI, and
wherein according to the second scheme, the PUCCH resource in the PUCCH resource set is determined based on the PUCCH resource indicator, but not based on the index of the downlink resource that was used for transmission of the DCI.

### Claim 33 (depends on 32)

The method according to claim 32, wherein X is 2.

### Claim 34 (depends on 32)

The method according to claim 32, wherein based on the size of the UCI being less than or equal to X (>=1) bits, the first scheme or the second scheme is used based on a number of the PUCCH resources in the PUCCH resource set.

### Claim 35 (depends on 34)

The method according to claim 34, wherein based on the size of the UCI being less than or equal to X (>=1) bits, and based on the number of the PUCCH resources in the PUCCH resource set being greater than a reference value, the PUCCH resource is determined according to the first scheme,
wherein the reference value is equal to a number of values representable by the PUCCH resource indicator.

### Claim 36 (depends on 34)

The method according to claim 34, wherein based on the size of the UCI being less than or equal to X (>=1) bits, and based on the number of the PUCCH resources in the first PUCCH resource set being less than or equal to a reference value, the PUCCH resource is determined according to the second scheme,
wherein the reference value is equal to a number of values representable by the PUCCH resource indicator.

### Claim 37

A communication apparatus configured to control a base station to operate in a wireless communication system, the communication apparatus comprising:
at least one processor; and
at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising:
transmitting downlink control information (DCI) comprising (i) downlink scheduling information for transmitting downlink data, and (ii) a physical uplink control channel (PUCCH) resource indicator for receiving uplink control information (UCI);
transmitting the downlink data based on the downlink scheduling information; and
receiving, on the PUCCH resource, the UCI including hybrid automatic repeat request acknowledgement (HARQ-ACK) information for the transmitted downlink data,
wherein, based on a size of the UCI being less than or equal to X (>=1) bits, the PUCCH resource is determined according to one of a first scheme or a second scheme, and
wherein, based on the size of the UCI being greater than X bits, the PUCCH resource is determined according to only the second scheme:
wherein according to the first scheme, the PUCCH resource in the PUCCH resource set is determined based on both (i) the PUCCH resource indicator that was included in the DCI, and (ii) an index of a downlink resource that was used for reception of the DCI, and
wherein according to the second scheme, the PUCCH resource in the PUCCH resource set is determined based on the PUCCH resource indicator, but not based on the index of the downlink resource that was used for transmission of the DCI.

### Claim 38 (depends on 37)

The communication apparatus according to claim 37, wherein based on the size of the UCI being less than or equal to X (>=1) bits, the first scheme or the second scheme is used based on a number of the PUCCH resources in the PUCCH resource set.

### Claim 39 (depends on 38)

The communication apparatus according to claim 38, wherein based on the size of the UCI being less than or equal to X (>=1) bits, and based on the number of the PUCCH resources in the PUCCH resource set being greater than a reference value, the PUCCH resource is determined according to the first scheme,
wherein the reference value is equal to a number of values representable by the PUCCH resource indicator.

### Claim 40 (depends on 38)

The communication apparatus according to claim 38, wherein based on the size of the UCI being less than or equal to X (>=1) bits, and based on the number of the PUCCH resources in the first PUCCH resource set being less than or equal to a reference value, the PUCCH resource is determined according to the second scheme,
wherein the reference value is equal to a number of values representable by the PUCCH resource indicator.