# US 12,113,619 B2 · Terminal, base station, and communication method

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- Number: US 12,113,619 B2
- Document ID: US12113619B2
- Status: Granted
- Kind: B2
- Application number: 18/040,247
- Filed: 2021-05-20
- Published: 2023-09-28
- Granted: 2024-10-08
- Earliest claimed: 2020-08-06
- Assignees: Panasonic Intellectual Property Corporation of America
- Applicants: Panasonic Intellectual Property Corporation of America
- Inventors: Tetsuya Yamamoto; Hongchao Li; Hidetoshi Suzuki
- Web page: https://patentgrep.com/patent/US12113619B2

## CPC

- H04L 1/16: in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)}
- H04L 1/1664: {the supervisory signal being transmitted together with payload signals; piggybacking}
- H04L 1/1822: involving configuration of automatic repeat request [ARQ] with parallel processes
- H04L 1/1896: {ARQ related signaling}
- H04W 28/04: Error control
- H04W 72/12: Wireless traffic scheduling
- H04L 1/1614: {using bitmaps}
- H04L 1/1819: {with retransmission of additional or different redundancy}
- H04L 1/1854: {Scheduling and prioritising arrangements}
- H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)}
- 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 is directed to downlink retransmission control. A terminal includes a control circuit that performs retransmission control for a plurality of transport blocks in units of code block groups including at least one code block, and a communication circuit that performs communication according to the retransmission control.

## Claims

### Claim 1

A terminal, comprising:
a receiver, which, in operation, receives a downlink control information (DCI) including information relating to a retransmission of multiple physical downlink shared channels (PDSCHs), and receives the multiple PDSCHs indicated by the DCI; and
circuitry, which, in operation, decode the multiple PDSCHs,
wherein the retransmission of the multiple PDSCHs is controlled based on one or more hybrid automatic repeat request (HARQ) process numbers that identifies one or more HARQ processes, and
the multiple PDSCHs have consecutive HARQ process numbers.

### Claim 2 (depends on 1)

The terminal according to claim 1, wherein the DCI includes a separate time resource information for each of the multiple PDSCHs.

### Claim 3 (depends on 1)

The terminal according to claim 1, wherein the DCI includes a common frequency resource information or a common modulation and coding scheme (MCS) for the multiple PDSCHs.

### Claim 4 (depends on 1)

The terminal according to claim 1, wherein the retransmission of the multiple PDSCHs is controlled for each of a plurality of transport blocks, separately.

### Claim 5 (depends on 1)

The terminal according to claim 1, wherein the retransmission of the multiple PDSCHs is controlled based on a New data indicator and a Redundancy version.

### Claim 6 (depends on 1)

The terminal according to claim 1, wherein a response signal to the multiple PDSCHs is transmitted in a physical uplink control channel (PUCCH) or in a physical uplink shared channel (PUSCH).

### Claim 7 (depends on 6)

The terminal according to claim 6, wherein the PUCCH is determined based on a PUCCH resource indicator (PRI) included in the DCI.

### Claim 8 (depends on 1)

The terminal according to claim 1, wherein a plurality of response signals to the multiple PDSCH are transmitted on a PUCCH.

### Claim 9

A communication method, comprising:
receiving a downlink control information (DCI) including information relating to a retransmission of multiple physical downlink shared channels (PDSCHs), and receiving the multiple PDSCHs indicated by the DCI; and
decoding the multiple PDSCHs,
wherein the retransmission of the multiple PDSCHs is controlled based on one or more hybrid automatic repeat request (HARQ) process numbers that identifies one or more HARQ processes, and
the multiple PDSCHs have consecutive HARQ process numbers.

### Claim 10 (depends on 9)

The communication method according to claim 9, wherein the DCI includes a separate time resource information for each of the multiple PDSCHs.

### Claim 11 (depends on 9)

The communication method according to claim 9, wherein the DCI includes a common frequency resource information or a common modulation and coding scheme (MCS) for the multiple PDSCHs.

### Claim 12 (depends on 9)

The communication method according to claim 9, wherein the retransmission of the multiple PDSCHs is controlled for each of a plurality of transport blocks, separately.

### Claim 13 (depends on 9)

The communication method according to claim 9, wherein the retransmission of the multiple PDSCHs is controlled based on New data indicator and a Redundancy version.

### Claim 14 (depends on 9)

The communication method according to claim 9, wherein a response to the multiple PDSCHs is transmitted in a physical uplink control channel (PUCCH) or in a physical uplink shared channel (PUSCH).

### Claim 15 (depends on 14)

The communication method according to claim 14, wherein the PUCCH is determined based on a PUCCH resource indicator (PRI) included in the DCI.

### Claim 16 (depends on 9)

The communication method according to claim 9, wherein a plurality of response signals to the multiple PDSCH are transmitted on a PUCCH.