# US 12,225,552 B2 · Acknowledgement signaling processes for radio access networks

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- Number: US 12,225,552 B2
- Document ID: US12225552B2
- Status: Granted
- Kind: B2
- Application number: 18/487,520
- Filed: 2023-10-16
- Published: 2024-02-01
- Granted: 2025-02-11
- Earliest claimed: 2017-10-11
- Assignees: Telefonaktiebolaget LM Ericsson (publ)
- Applicants: Telefonaktiebolaget LM Ericsson (publ)
- Inventors: Robert Baldemair; Daniel Chen Larsson; Jung-Fu Cheng; Stefan Parkvall
- Web page: https://patentgrep.com/patent/US12225552B2

## CPC

- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04L 1/1614: {using bitmaps}
- H04L 1/1825: Adaptation of specific ARQ protocol parameters according to transmission conditions
- H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)}
- H04L 1/1896: {ARQ related signaling}
- 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

There is disclosed a method of operating a user equipment in a radio access network. The method includes transmitting acknowledgement signaling based on a feedback configuration, the feedback configuration being selected from a set of configured acknowledgement configurations. The disclosure also pertains to related methods and devices.

## Claims

### Claim 1

A method of operating a user equipment in a New Radio, NR, radio access network, the method comprising:
transmitting acknowledgement signaling based on a feedback configuration, the feedback configuration being selected from a set of acknowledgement configurations based on a Downlink Control Information, DCI, format of received control signaling; and
at least one acknowledgement configuration of the set of acknowledgement configurations indicating a mapping of at least one acknowledgment bit subpattern to at least one code block group.

### Claim 2 (depends on 1)

The method according to claim 1, wherein acknowledgement signaling represents acknowledgement information, the acknowledgement information being structured based on the feedback configuration.

### Claim 3 (depends on 1)

The method according to claim 1, wherein acknowledgment configurations of the set of acknowledgment configurations pertain to one of:
a same bandwidth part;
a carrier; and
a carrier aggregation.

### Claim 4 (depends on 1)

The method according to claim 1, wherein at least one acknowledgement configuration of the set of acknowledgement configurations is configured with Radio Resource Control layer signaling.

### Claim 5

A user equipment for a New Radio, NR, radio access network, the user equipment comprising processing circuitry, the user equipment being configured to utilize the processing circuitry to:
transmit acknowledgement signaling based on a feedback configuration, the feedback configuration being selected from a set of acknowledgement configurations based on a Downlink Control Information, DCI, format of received control signaling; and
at least one acknowledgement configuration of the set of acknowledgement configurations indicating a mapping of at least one acknowledgment bit subpattern to at least one code block group.

### Claim 6 (depends on 5)

The user equipment according to claim 5, wherein acknowledgement signaling represents acknowledgement information, the acknowledgement information being structured based on the feedback configuration.

### Claim 7 (depends on 5)

The user equipment according to claim 5, wherein the acknowledgment configurations of the set of acknowledgment configurations pertain to one of:
a same bandwidth part;
a carrier; and
a carrier aggregation.

### Claim 8 (depends on 5)

The user equipment according to claim 5, wherein at least one acknowledgement configuration of the set of acknowledgement configurations is configured with Radio Resource Control layer signaling.

### Claim 9

A network node for a New Radio, NR, radio access network, the network node comprising processing circuitry and being configured to utilize the processing circuitry to:
configure a user equipment with at least one acknowledgement configuration of a set of acknowledgement configurations;
transmit, to the user equipment, control signaling having a Downlink Control Information, DCI, format, indicating a feedback configuration to be selected from the set of acknowledgement configurations based on which the user equipment is to transmit acknowledgement signaling; and
the at least one acknowledgement configuration of the set of acknowledgement configurations indicating a mapping of at least one acknowledgment bit subpattern to at least one code block group.

### Claim 10 (depends on 9)

The network node according to claim 9, wherein acknowledgement signaling represents acknowledgement information, the acknowledgement information being structured based on the feedback configuration.

### Claim 11 (depends on 9)

The network node according to claim 9, wherein the acknowledgment configurations of the set of acknowledgment configurations pertain to one of:
a same bandwidth part;
a carrier; and
a carrier aggregation.

### Claim 12 (depends on 9)

The network node according to claim 9, wherein at least one acknowledgement configuration of the set of acknowledgement configurations is configured with Radio Resource Control layer signaling.