RECEIVING DEVICE AND RADIO COMMUNICATION METHOD

• US 20200136783A1
• Filed: 04/20/2017
• Published: 04/30/2020
• Est. Priority Date: 04/20/2017
• Status: Active Grant

• Current Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Original Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Inventors: Takeda, Kazuki, Nagata, Satoshi
• Granted Patent: US 11,239,976 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 1/0043 Realisations of complexity reduction techniques, e.g. use of look-up tables
• CPC Class Codes: H04L 1/0052 Realisations of complexity reduction techniques, e.g. pipelining or use of look-up tables
• CPC Class Codes: H04L 1/0067 Rate matching H04L1/0013 and H04L1/08 take precedence
• CPC Class Codes: H04L 1/1614 using bitmaps
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861

Abstract

The present invention is designed to reduce the delay time to transmit delivery acknowledgment information as feedback in response to data channels. According to one aspect of the present invention, a receiving device has a receiving section that receives one or more code blocks mapped per given number of symbols, in a slot in which a data signal is scheduled, and a control section that controls the transmission of delivery acknowledgment information in response to the data signal in the slot, based on the decoding results of the code blocks mapped per given number of symbols.

Claims

1. A receiving device comprising:

a receiving section that receives one or more code blocks mapped per given number of symbols, in a slot in which a data signal is scheduled; and

a control section that controls transmission of delivery acknowledgment information in response to the data signal in the slot, based on decoding results of the code blocks mapped per given number of symbols.

2. The receiving device according to claim 1, wherein the control section controls a size of the code blocks based on at least one of the number of resource blocks allocated to the data signal, a modulation scheme, a coding rate and the number of layers.

3. The receiving device according to claim 2, wherein the control section controls a coding length and/or a coding rate of the code blocks based on at least one of the number of resource blocks allocated to the data signal, the modulation scheme, the coding rate and the number of layers.

4. The receiving device according to claim 1, wherein the control section may determine whether or not to transmit the delivery acknowledgment information in the slot based on at least one of the number of resource blocks allocated to the data signal, a modulation scheme, a coding rate and the number of layers.

5. The receiving device according to claim 4, wherein the control section controls a coding length and/or a coding rate of the code block regardless of at least one of the number of resource blocks allocated to the data signal, the modulation scheme, the coding rate and the number of layers.

6. A radio communication method comprising, in a receiving device, the steps of:

receiving one or more code blocks mapped per given number of symbols, in a slot in which a data signal is scheduled; and

controlling transmission of delivery acknowledgment information in response to the data signal in the slot, based on decoding results of the code blocks mapped per given number of symbols.