# US 12,113,659 B2 · Signal transmission method, device, and system

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- Number: US 12,113,659 B2
- Document ID: US12113659B2
- Status: Granted
- Kind: B2
- Application number: 17/403,119
- Filed: 2021-08-16
- Published: 2022-03-10
- Granted: 2024-10-08
- Earliest claimed: 2017-08-25
- Assignees: Huawei Technologies Co., Ltd.
- Applicants: Huawei Technologies Co., Ltd.
- Inventors: Fengwei Liu; Lei Chen
- Web page: https://patentgrep.com/patent/US12113659B2

## CPC

- H04L 1/1664: {the supervisory signal being transmitted together with payload signals; piggybacking}
- H04L 27/36: Modulator circuits; Transmitter circuits
- H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ]
- H04L 5/00: Arrangements affording multiple use of the transmission path
- H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT}
- H04L 27/04: Modulator circuits; Transmitter circuits
- H04L 27/20: Modulator circuits; Transmitter circuits
- H04L 27/26: Systems using multi-frequency codes (H04L27/32 takes precedence)
- H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network
- H04L 1/1692: {Physical properties of the supervisory signal, e.g. acknowledgement by energy bursts}
- H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)}
- 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: 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

This application discloses a signal transmission method, including: obtaining, by a terminal device, to-be-transmitted data, uplink control information, and a demodulation reference signal; mapping the to-be-transmitted data, the uplink control information, and the demodulation reference signal to generate multiplexed symbols. The multiplexed symbols include DFT-s-OFDM symbols or OFDM symbols. N first multiplexed symbols are located on one side or two sides of a second multiplexed symbol. A location relationship between each of the N first multiplexed symbols and the second multiplexed symbol satisfies a mapping condition. N is an integer greater than or equal to 1. The first multiplexed symbol is a multiplexed symbol to which the uplink control information is mapped, and the second multiplexed symbol is a multiplexed symbol to which the demodulation reference signal is mapped.

## Claims

### Claim 1

A signal transmission method, comprising:
obtaining, by a communication apparatus, a hybrid automatic repeat request (HARQ-ACK) and a modulation order for the HARQ-ACK;
encoding, by the communication apparatus, the HARQ-ACK to obtain encoded HARQ-ACK, based on a correspondence between the modulation order and the encoded HARQ-ACK;
wherein, if the HARQ-ACK is 1-bit HARQ-ACK and the modulation order is 1 that corresponds to a modulation scheme of π/2 binary phase shift keying (π/2-BPSK), the encoded HARQ-ACK is [o0ACK] according to the correspondence between the modulation order and the encoded HARQ-ACK, wherein o0ACK indicates a bit of the 1-bit HARQ-ACK; and
wherein, if the HARQ-ACK is 2-bit HARQ-ACK and the modulation order is 1 that corresponds to a modulation scheme of π/2 binary phase shift keying (π/2-BPSK), the encoded HARQ-ACK is [o0ACK o1ACK o2ACK] according to the correspondence between the modulation order and the encoded HARQ-ACK, wherein [o0ACK o1ACK] indicate bits of the 2-bit HARQ-ACK, and o2ACK=(o0ACK+o1ACK)mod 2.

### Claim 2 (depends on 1)

The method according to claim 1, further comprising:
obtaining, by the communication apparatus, to-be transmitted data;
encoding, by the communication apparatus, the to-be transmitted data to obtain encoded data; and
modulating, by the communication apparatus, the encoded data based on a modulation scheme for the encoded data, wherein the modulation scheme for the encoded data comprises one of the following:
π/2 binary phase shift keying (π/2 BPSK), quadrature phase shift keying (QPSK), 16 quadrature amplitude modulation (QAM), and 64QAM.

### Claim 3 (depends on 2)

The method according to claim 2, wherein if the encoded data is modulated in a manner of the π/2 BPSK, the modulation scheme for the HARQ-ACK is the π/2 BPSK.

### Claim 4 (depends on 2)

The method according to claim 2, wherein if the encoded data is modulated in a manner of the 16QAM or the 64QAM, the modulation scheme for the HARQ-ACK is QPSK.

### Claim 5 (depends on 1)

The method according to claim 1, wherein, if the HARQ-ACK is 1-bit HARQ-ACK, the correspondence between the modulation order and the encoded HARQ-ACK is indicated by:
Qm
Encoded HARQ-ACK
1
[o0ACK ]
2
[o0ACK y]
4
[o0ACK y x x]
6
[o0ACK y x x x x ]
wherein Qm represents the modulation order, the modulation orders 2, 4, and 6 respectively correspond to modulation schemes quadrature phase shift keying (QPSK), 16 quadrature amplitude modulation (QAM), and 64QAM, and y and x are placeholders.

### Claim 6 (depends on 1)

The method according to claim 1, wherein, if the HARQ-ACK is 2-bit HARQ-ACK, the correspondence between the modulation order and the encoded HARQ-ACK is indicated by:
Qm
Encoded HARQ-ACK
1
[o0ACK o1ACK o2ACK ]
2
[o0ACK o1ACK o2ACK o0ACK o1ACK o2ACK ]
4
[o0ACK o1ACK x x o2ACK o0ACK x x o1ACK o2ACK x x]
6
[o0ACK o1ACK x x x x o2ACK o0ACK x x x x o1ACK o2ACK x x x x]
wherein Qm represents the modulation order, the modulation orders 2, 4, and 6 respectively correspond to modulation schemes quadrature phase shift keying (QPSK), 16 quadrature amplitude modulation (QAM), and 64QAM, and y and x are placeholders.

### Claim 7

A communication apparatus, comprising:
one or more processors; and
one or more memories coupled to the one or more processors and storing instructions for execution by the one or more processors, wherein the instructions cause the communication apparatus to:
obtain a hybrid automatic repeat request (HARQ-ACK) and a modulation order for the HARQ-ACK;
encode the HARQ-ACK to obtain encoded HARQ-ACK, based on a correspondence between the modulation order and the encoded HARQ-ACK;
wherein, if the HARQ-ACK is 1-bit HARQ-ACK and the modulation order is 1 that corresponds to a modulation scheme of π/2 binary phase shift keying (π/2-BPSK), the encoded HARQ-ACK is [o0ACK] according to the correspondence between the modulation order and the encoded HARQ-ACK, wherein o0ACK indicates a bit of the 1-bit HARQ-ACK; and
wherein, if the HARQ-ACK is 2-bit HARQ-ACK and the modulation order is 1 that corresponds to a modulation scheme of π/2 binary phase shift keying (π/2-BPSK), the encoded HARQ-ACK is [o0ACK o1ACK o2ACK] according to the correspondence between the modulation order and the encoded HARQ-ACK, wherein [o0ACK o1ACK] indicate bits of the 2-bit HARQ-ACK, and o2ACK=(o0ACK+o1ACK)mod 2.

### Claim 8 (depends on 7)

The communication apparatus according to claim 7, the instructions further cause the communication apparatus to:
obtain to-be transmitted data;
encode the to-be transmitted data to obtain encoded data; and
modulate the encoded data based on a modulation scheme for the encoded data, wherein the modulation scheme for the encoded data comprises one of the following:
π/2 binary phase shift keying (π/2 BPSK), quadrature phase shift keying (QPSK), 16 quadrature amplitude modulation (QAM), and 64QAM.

### Claim 9 (depends on 8)

The communication apparatus according to claim 8, wherein if the encoded data is modulated in a manner of the π/2 BPSK, the modulation scheme for the HARQ-ACK is the π/2 BPSK.

### Claim 10 (depends on 8)

The communication apparatus according to claim 8, wherein if the encoded data is modulated in a manner of the 16QAM or the 64QAM, the modulation scheme for the HARQ-ACK is the QPSK.

### Claim 11 (depends on 7)

The communication apparatus according to claim 7, wherein, if the HARQ-ACK is 1-bit HARQ-ACK, the correspondence between the modulation order and the encoded HARQ-ACK is indicated by:
Qm
Encoded HARQ-ACK
1
[o0ACK ]
2
[o0ACK y]
4
[o0ACK y x x]
6
[o0ACK y x x x x ]
wherein Qm represents the modulation order, the modulation orders 2, 4, and 6 respectively correspond to modulation schemes quadrature phase shift keying (QPSK), 16 quadrature amplitude modulation (QAM), and 64QAM, and y and x are placeholders.

### Claim 12 (depends on 7)

The communication apparatus according to claim 7, wherein, if the HARQ-ACK is 2-bit HARQ-ACK, the correspondence between the modulation order and the encoded HARQ-ACK is indicated by:
Qm
Encoded HARQ-ACK
1
[o0ACK o1ACK o2ACK ]
2
[o0ACK o1ACK o2ACK o0ACK o1ACK o2ACK ]
4
[o0ACK o1ACK x x o2ACK o0ACK x x o1ACK o2ACK x x]
6
[o0ACK o1ACK x x x x o2ACK o0ACK x x x x o1ACK o2ACK x x x x]
wherein Qm represents the modulation order, the modulation orders 2, 4, and 6 respectively correspond to modulation schemes quadrature phase shift keying (QPSK), 16 quadrature amplitude modulation (QAM), and 64QAM, and y and x are placeholders.

### Claim 13

A non-transitory computer readable storage medium storing one or more instructions executable by one or more processors to perform a method, the method comprising:
obtaining, a hybrid automatic repeat request (HARQ-ACK) and a modulation order for the HARQ-ACK;
encoding, the HARQ-ACK to obtain encoded HARQ-ACK, based on a correspondence between the modulation order and the encoded HARQ-ACK;
wherein, if the HARQ-ACK is 1-bit HARQ-ACK and the modulation order is 1 that corresponds to a modulation scheme of π/2 binary phase shift keying (π/2-BPSK), the encoded HARQ-ACK is [o0ACK] according to the correspondence between the modulation order and the ACK encoded HARQ-ACK, wherein o0ACK indicates a bit of the 1-bit HARQ-ACK; and
wherein, if the HARQ-ACK is 2-bit HARQ-ACK and the modulation order is 1 that corresponds to a modulation scheme of π/2 binary phase shift keying (π/2-BPSK), the encoded HARQ-ACK is [o0ACK o1ACK o2ACK] according to the correspondence between the modulation order and the encoded HARQ-ACK, wherein [o0ACK o1ACK] indicate bits of the 2-bit HARQ-ACK, and o2ACK=(o0ACK+o1ACK)mod 2.

### Claim 14 (depends on 13)

The medium according to claim 13, wherein the method further comprising:
obtaining, to-be transmitted data;
encoding, the to-be transmitted data to obtain encoded data; and
modulating, the encoded data based on a modulation scheme for the encoded data, wherein the modulation scheme for the encoded data comprises one of the following:
π/2 binary phase shift keying (π/2 BPSK), quadrature phase shift keying (QPSK), 16 quadrature amplitude modulation (QAM), and 64QAM.

### Claim 15 (depends on 14)

The medium according to claim 14, wherein if the encoded data is modulated in a manner of the π/2 BPSK, the modulation scheme for the HARQ-ACK is the π/2 BPSK.

### Claim 16 (depends on 14)

The method according to claim 14, wherein if the encoded data is modulated in a manner of the 16QAM or the 64QAM, the modulation scheme for the HARQ-ACK is QPSK.

### Claim 17 (depends on 13)

The medium according to claim 13, wherein, if the HARQ-ACK is 1-bit HARQ-ACK, the correspondence between the modulation order and the encoded HARQ-ACK is indicated by:
Qm
Encoded HARQ-ACK
1
[o0ACK ]
2
[o0ACK y]
4
[o0ACK y x x]
6
[o0ACK y x x x x ]
wherein Qm represents the modulation order, the modulation orders 2, 4, and 6 respectively correspond to modulation schemes quadrature phase shift keying (QPSK), 16 quadrature amplitude modulation (QAM), and 64QAM, and y and x are placeholders.

### Claim 18 (depends on 13)

The medium according to claim 13, wherein, if the HARQ-ACK is 2-bit HARQ-ACK, the correspondence between the modulation order and the encoded HARQ-ACK is indicated by:
Qm
Encoded HARQ-ACK
1
[o0ACK o1ACK o2ACK ]
2
[o0ACK o1ACK o2ACK o0ACK o1ACK o2ACK ]
4
[o0ACK o1ACK x x o2ACK o0ACK x x o1ACK o2ACK x x]
6
[o0ACK o1ACK x x x x o2ACK o0ACK x x x x o1ACK o2ACK x x x x]
wherein Qm represents the modulation order, the modulation orders 2, 4, and 6 respectively correspond to modulation schemes quadrature phase shift keying (QPSK), 16 quadrature amplitude modulation (QAM), and 64QAM, and y and x are placeholders.