A method and device for determining the total number of HARQ-ACK information bits

Abstract

A method and apparatus for determining the total number of HARQ-ACK information bits, the method comprising: a terminal device receiving a counter downlink allocation index cDAI and a total downlink allocation index tDAI from a network device, wherein the value of cDAI is V C‑DAI , the value of tDAI is V T‑DAI , the number of bits of cDAI is N C‑DAI , the number of bits of tDAI is N T‑DAI , and N C‑DAI <N T‑DAI . The terminal equipment is based on V T‑DAI Determine the parameter F1, according to the parameter F1 and V C‑DAI Determine the update parameter j according to V T‑DAI and the updated parameter j to determine the total number of HARQ‑ACK information bits O ACK , according to O ACK Sending HARQ-ACK information to the network device allows the network device and the terminal device to have a consistent understanding of the HARQ-ACK codebook size.

Claims

1. A method for determining the total number of hybrid automatic repeat request acknowledgment (HARQ-ACK) information bits, characterized in that: The method comprises: Receive the counter downlink allocation index cDAI and the total downlink allocation index tDAI from the network device, wherein the value of the cDAI is V C-DAI , the value of tDAI is V T-DAI , the number of bits of the cDAI is N C-DAI , the number of bits of the tDAI is N T-DAI , and N C-DAI <N T-DAI , V C-DAI and V T-DAI is a positive integer; According to the V T-DAI Determine the parameter F1, F1 is an integer; According to the parameter F1 and the V C-DAI Determine the update parameter j; wherein, the update parameter j is determined based on the parameter F1 and the V C-DAI Determine the updated parameter j, including: if F1 <V C-DAI , then update the parameter j, wherein the updated parameter j is the sum of the parameter j before the update and 1; According to the V T-DAI and the updated parameter j to determine the total number of HARQ-ACK information bits O ACK According to the O ACK Send the HARQ-ACK information to the network device.

2. The method according to claim 1, wherein F1 =(V T-DAI -1)mod T D +1, mod represents the modulo operation.

3. The method according to claim 1 or 2, wherein:

4. The method according to claim 1 or 2, wherein: T D =V C-DAI =2 and V T-DAI =3.

5. The method according to claim 1 or 2, wherein: O ACK =T D ·j+(V T-DAI -1)modT D +1 or O ACK =2·(T D ·j+(V T-DAI -1)modT D +1), where 6. The method according to claim 1 or 2, wherein: The cDAI is carried by first downlink control information DCI, and the first DCI is used to schedule a downlink data channel; the tDAI is carried by a second DCI, and the second DCI is used to schedule an uplink data channel.

7. A method for determining the total number of hybrid automatic repeat request acknowledgment HARQ-ACK information bits, characterized in that: The method comprises: Receive the counter downlink allocation index cDAI and the total downlink allocation index tDAI from the network device, wherein the value of the cDAI is V C-DAI , the value of tDAI is V T-DAI , the number of bits of the cDAI is N C-DAI , the number of bits of the tDAI is N T-DAI , and N C-DAI >N T-DAI , V C-DAI and V T-DAI is a positive integer; According to the V C-DAI Determine the parameter F2, F2 is an integer; According to the parameter F2 and the V T-DAI determine the update parameter j; wherein, the according to the parameter F2 and the V T-DAI determine the update parameter j, including: if V T-DAI < F2, then update the parameter j, wherein the updated parameter j is the sum of the parameter j before update and 1; According to the V T-DAI and the updated parameter j to determine the total number of HARQ-ACK information bits O ACK ; According to the O ACK Send HARQ-ACK information to the network device.

8. The method according to claim 7, wherein F2=(V C-DAI -1)mod T D2 +1, among which, mod represents the modulo operation.

9. The method according to claim 7 or 8, wherein 10. The method according to claim 7 or 8, characterized in that O ACK =T D2 ·j+V T-DAI , or O ACK =2·(T D2 ·j+V T-DAI ),in, 11. The method according to claim 7 or 8, wherein The cDAI is carried by first downlink control information DCI, and the first DCI is used to schedule a downlink data channel; the tDAI is carried by a second DCI, and the second DCI is used to schedule an uplink data channel.

12. A communication device, characterized in that: Comprising means for performing the method of any one of claims 1 to 6 or 7 to 11.

13. A communication device, characterized in that: The method comprises a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device, and the processor is used to implement the method as described in any one of claims 1 to 6 or 7 to 11 through a logic circuit or executing code instructions.

14. A computer-readable storage medium, characterized in that The storage medium stores a computer program or instruction. When the computer program or instruction is executed by the communication device, the method according to any one of claims 1 to 6 or 7 to 11 is implemented.

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