# US 2018/0324786 A1 · Resource determination for uplink control channel for wireless networks

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- Number: US 2018/0324786 A1
- Document ID: US20180324786A1
- Status: Published application
- Kind: A1
- Application number: 15/969,884
- Filed: 2018-05-03
- Published: 2018-11-08
- Earliest claimed: 2017-05-05
- Assignees: Nokia Technologies Oy
- Applicants: Nokia Technologies Oy
- Inventors: Kari Hooli; Esa Tapani Tiirola; Emad Farag
- Web page: https://patentgrep.com/patent/US20180324786A1

## CPC

- H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04W 72/02: Selection of wireless resources by user or terminal
- H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)}
- H04L 5/0092: {Indication of how the channel is divided}
- 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

A technique includes determining, by a user device, a set of uplink control channel resources out of a plurality of predetermined sets of uplink control channel resources, before the user device has received a user device-specific configuration of uplink control channel resources; selecting, by the user device, an uplink control channel resource of the determined set of uplink control channel resources; and transmitting, by the user device, control information via the selected uplink control channel resource.

## Claims

### Claim 1

A method comprising:
determining, by a user device, a set of uplink control channel resources out of a plurality of predetermined sets of uplink control channel resources, before the user device has received a user device-specific configuration of uplink control channel resources;
selecting, by the user device, an uplink control channel resource of the determined set of uplink control channel resources; and
transmitting, by the user device, control information via the selected uplink control channel resource.

### Claim 2 (depends on 1)

The method of claim 1 wherein the user device-specific configuration of uplink control channel resources comprises a user device-specific configuration of a set of uplink control channel resources.

### Claim 3 (depends on 1)

The method of claim 1 wherein the determining comprises:
receiving, by the user device during a random access procedure with a base station, an uplink control channel resource set index that identifies the set of uplink control channel resources out of the plurality of predetermined sets of uplink control channel resources.

### Claim 4 (depends on 1)

The method of any of claim 1 wherein the determining comprises:
receiving, by the user device via system information, information describing a plurality of uplink control channel resource set indexes, each uplink control channel resource set index identifying a predetermined uplink control channel resource set;
receiving, by the user device via a resource grant, an identifier associated with the user device;
selecting, based on at least a portion of the identifier, an uplink control channel resource set of the plurality of predetermined uplink control channel resource sets.

### Claim 5 (depends on 4)

The method of claim 4 wherein the receiving information describing a plurality of uplink control channel resource set indexes comprises at least one of the following:
receiving a first uplink control channel resource set index and a number of uplink control channel resource set indexes; and
receiving the plurality of uplink control channel resource set indexes.

### Claim 6 (depends on 4)

The method of claim 4 wherein receiving an identifier comprises:
receiving a radio network temporary identifier (RNTI) associated with the user device via a downlink grant; and
wherein the selecting an uplink control channel resource set comprises selecting, based on at least a portion of the radio network temporary identifier, an uplink control channel resource set of the plurality of uplink control channel resource sets.

### Claim 7 (depends on 6)

The method of claim 6 wherein the selecting an uplink control channel resource set comprises:
selecting, based on two least significant bits (LSBs) of the radio network temporary identifier, an uplink control channel resource set of the plurality of uplink control channel resource sets.

### Claim 8 (depends on 1)

The method of claim 1 wherein the selecting an uplink control channel resource of the determined set of uplink control channel resources comprises:
receiving, by the user device, an acknowledgement resource indicator (ARI) provided in a downlink grant; and
selecting, by the user device based on the acknowledgement resource indicator, an uplink control channel resource of the determined set of uplink control channel resources.

### Claim 9 (depends on 1)

The method of claim 1 wherein the plurality of predetermined sets of uplink control channel resources comprises a plurality of predetermined sets of physical uplink control channel (PUCCH) resources.

### Claim 10 (depends on 1)

The method of claim 1 wherein control channel resources on each of the plurality of predetermined sets of uplink control channel resources correspond to at least one of short PUCCH resources and long PUCCH resources.

### Claim 11 (depends on 1)

The method of claim 1 wherein at least one control channel resource set of the plurality of predetermined sets of uplink control channel resources comprises PUCCH resources from both short PUCCH and long PUCCH.

### Claim 12 (depends on 1)

The method of claim 1 wherein at least one control channel resource set of the plurality of predetermined sets of uplink control channel resources comprises PUCCH resources mapped to at least two different OFDM (orthogonal frequency division multiplexing) symbols of the slot.

### Claim 13 (depends on 1)

The method of claim 1 wherein the plurality of predetermined sets of uplink control channel resources comprises physical uplink control channel (PUCCH) resources with resource or resource set specific HARQ-ACK (hybrid automatic repeat request Acknowledgement) timing relationship with respect to physical downlink shared channel (PDSCH) timing.

### Claim 14 (depends on 1)

The method of claim 1 wherein each of the plurality of predetermined sets of uplink control channel resources includes a consecutive set of uplink control channel resources.

### Claim 15 (depends on 1)

The method of claim 1 wherein resources of at least two consecutive sets of the plurality of predetermined sets of uplink control channel resources at least partially overlap.

### Claim 16 (depends on 1)

The method of claim 1:
wherein the determining comprises determining, by the user device based on system information received by the user device indicating a physical uplink control channel (PUCCH) resource set index, a set of PUCCH resources before the user device has received a user device-specific configuration of uplink control channel resources; and
wherein the selecting comprises selecting, by the user device based on a resource indicator received by the user device, a PUCCH resource of the determined set of PUCCH resources.

### Claim 17

A computer program product includes a computer-readable storage medium and storing executable code that, when executed by at least one data processing apparatus, is configured to cause the at least one data processing apparatus to perform a method comprising:
determining, by a user device, a set of uplink control channel resources out of a plurality of predetermined sets of uplink control channel resources, before the user device has received a user device-specific configuration of uplink control channel resources;
selecting, by the user device, an uplink control channel resource of the determined set of uplink control channel resources; and
transmitting, by the user device, control information via the selected uplink control channel resource.

### Claim 18

An apparatus comprising at least one processor and at least one memory including computer instructions, when executed by the at least one processor, cause the apparatus to:
determine, by a user device, a set of uplink control channel resources out of a plurality of predetermined sets of uplink control channel resources, before the user device has received a user device-specific configuration of uplink control channel resources;
select, by the user device, an uplink control channel resource of the determined set of uplink control channel resources; and
transmit, by the user device, control information via the selected uplink control channel resource.

### Claim 19 (depends on 18)

The apparatus of claim 18 wherein the user device-specific configuration of uplink control channel resources comprises a user device-specific configuration of a set of uplink control channel resources.

### Claim 20 (depends on 18)

The apparatus of claim 18 wherein causing the apparatus to determine comprises causing the apparatus to:
receive, by the user device during a random access procedure with a base station, an uplink control channel resource set index that identifies the set of uplink control channel resources out of the plurality of predetermined sets of uplink control channel resources.

### Claim 21 (depends on 18)

The apparatus of any claim 18 wherein causing the apparatus to determine comprises causing the apparatus to:
receive, by the user device via system information, information describing a plurality of uplink control channel resource set indexes, each uplink control channel resource set index identifying a predetermined uplink control channel resource set;
receive, by the user device via a resource grant, an identifier associated with the user device; and
select, based on at least a portion of the identifier, an uplink control channel resource set of the plurality of predetermined uplink control channel resource sets.

### Claim 22 (depends on 21)

The apparatus of claim 21 wherein causing the apparatus to receive information describing a plurality of uplink control channel resource set indexes comprises causing the apparatus to perform at least one of the following:
receive a first uplink control channel resource set index and a number of uplink control channel resource set indexes; and
receive the plurality of uplink control channel resource set indexes.

### Claim 23 (depends on 21)

The apparatus of any claim 21 wherein causing the apparatus to receive an identifier comprises causing the apparatus to:
receive a radio network temporary identifier (RNTI) associated with the user device via a downlink grant; and
wherein causing the apparatus to select an uplink control channel resource set comprises causing the apparatus to select, based on at least a portion of the radio network temporary identifier, an uplink control channel resource set of the plurality of uplink control channel resource sets.

### Claim 24 (depends on 23)

The apparatus of claim 23 wherein causing the apparatus to select an uplink control channel resource set comprises causing the apparatus to:
select, based on two least significant bits (LSBs) of the radio network temporary identifier, an uplink control channel resource set of the plurality of uplink control channel resource sets.

### Claim 25 (depends on 18)

The apparatus of claim 18 wherein causing the apparatus to select an uplink control channel resource of the determined set of uplink control channel resources comprises causing the apparatus to:
receive, by the user device, an acknowledgement resource indicator (ARI) provided in a downlink grant; and
select, by the user device based on the acknowledgement resource indicator, an uplink control channel resource of the determined set of uplink control channel resources.

### Claim 26 (depends on 18)

The apparatus of claim 18 wherein control channel resources on each of the plurality of predetermined sets of uplink control channel resources correspond to at least one of short PUCCH resources and long PUCCH resources.

### Claim 27 (depends on 18)

The apparatus of claim 18 wherein at least one control channel resource set of the plurality of predetermined sets of uplink control channel resources comprises PUCCH resources from both short PUCCH and long PUCCH.

### Claim 28 (depends on 18)

The apparatus of claim 18 wherein at least one control channel resource set of the plurality of predetermined sets of uplink control channel resources comprises PUCCH resources mapped to at least two different OFDM (orthogonal frequency division multiplexing) symbols of the slot.

### Claim 29 (depends on 18)

The apparatus of claim 18 wherein the plurality of predetermined sets of uplink control channel resources comprises physical uplink control channel (PUCCH) resources with resource or resource set specific HARQ-ACK (hybrid automatic repeat request Acknowledgement) timing relationship with respect to physical downlink shared channel (PDSCH) timing.

### Claim 30 (depends on 18)

The apparatus of claim 18 wherein resources of at least two consecutive sets of the plurality of predetermined sets of uplink control channel resources at least partially overlap.

### Claim 31 (depends on 18)

The apparatus of claim 18:
wherein causing the apparatus to determine comprises causing the apparatus to determine, by the user device based on system information received by the user device indicating a physical uplink control channel (PUCCH) resource set index, a set of PUCCH resources before the user device has received a user device-specific configuration of uplink control channel resources; and
wherein causing the apparatus to select comprises causing the apparatus to select, by the user device based on a resource indicator received by the user device, a PUCCH resource of the determined set of PUCCH resources.
