DATA TRANSMISSION METHOD, DATA TRANSMISSION FEEDBACK METHOD, AND RELATED APPARATUS

• US 20200136786A1
• Filed: 12/20/2019
• Published: 04/30/2020
• Est. Priority Date: 06/24/2017
• Status: Active Application

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Wu, Yiqun, Xu, Xiuqiang, Wang, Lei, Chen, Yan
• Application Number:
  US16/723,732
• Publication Number:
  US 20200136786A1
• Time in Patent Office: Days
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1822 involving configuration of automatic repeat request [ARQ] with parallel processes
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 5/00 Arrangements affording multiple use of the transmission path
• CPC Class Codes: H04L 5/0005 Time-frequency
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 72/04 Wireless resource allocation

Abstract

This application discloses a data transmission method, a feedback method, and a related apparatus. The method may include receiving, by a terminal device, feedback configuration information from a network device, where the feedback configuration information indicates a configuration of feedback information specific to uplink data of the terminal device. The method may also include sending, by the terminal device, the uplink data to the network device. Furthermore, the method may include determining, by the terminal device in a feedback message sent by the network device, the feedback information of the uplink data based on the feedback configuration information. In this application, signaling overheads and a transmission latency of data transmission can be reduced.

Claims

1. A data transmission feedback method, comprising:

sending, by a network device, feedback configuration information to a terminal device, wherein the feedback configuration information indicates a configuration of feedback information specific to uplink data of the terminal device;

receiving, by the network device, the uplink data from the terminal device; and

sending, by the network device, a feedback message based on the configuration of the feedback information specific to the uplink data of the terminal device, wherein the feedback message carries the feedback information to the uplink data.

2. The method according to claim 1, wherein the sending, by the network device, feedback configuration information to the terminal device comprises:

sending, by the network device to the terminal device, higher layer signaling that carries the feedback configuration information.

3. The method according to claim 2, wherein before the receiving, by the network device, the uplink data from the terminal device, the method further comprises:

sending, by the network device, activation instruction information to the terminal device, wherein the activation instruction information instructs the terminal device to activate the configuration indicated by the feedback configuration information.

4. The method according to claim 1, wherein the sending, by the network device, feedback configuration information to the terminal device comprises:

sending, by the network device to the terminal device, downlink control information (DCI) that carries the feedback configuration information.

5. The method according to claim 1, wherein the sending, by the network device, feedback configuration information to the terminal device comprises:

sending, by the network device to the terminal device, higher layer signaling that carries first feedback configuration information; and

sending, by the network device to the terminal device, downlink control information that carries second feedback configuration information, wherein

the first feedback configuration information and the second feedback configuration information jointly indicate the configuration of the feedback information specific to the uplink data of the terminal device.

6. The method according to claim 1, wherein the feedback message is Common DCI.

7. A data transmission apparatus, comprising:

a transceiver configured to;

receive feedback configuration information from a network device, wherein the feedback configuration information indicates a configuration of feedback information specific to uplink data of a terminal device, and

send the uplink data to the network device; and

a processor communicatively coupled with the transceiver, configured to determine, in a feedback message sent by the network device, the feedback information to the uplink data based on the feedback configuration information.

8. The apparatus according to claim 7, wherein the feedback configuration information comprises one or more of a feedback time interval of the feedback information, a quantity of bits occupied by the feedback information in the feedback message, and a location index of the feedback information in the feedback message.

9. The apparatus according to claim 7, wherein the transceiver is configured to:

receive, from a network device, higher layer signaling that carries the feedback configuration information.

10. The apparatus according to claim 9, further comprising:

the transceiver further configured to receive activation instruction information from the network device; and

the processor further configured to determine, in the feedback message sent by the network device, the feedback information to the uplink data based on the configuration indicated by the activated feedback configuration information, wherein the configuration indicated by the feedback configuration information is activated after the activation instruction information is received.

11. The apparatus according to claim 7, wherein the transceiver is configured to receive downlink control information (DCI) that carries the feedback configuration information and that is sent by the network device.

12. The apparatus according to claim 7, wherein the transceiver is configured to:

receive higher layer signaling that carries first feedback configuration information; and

receiver DCI that carries second feedback configuration information, wherein

the first feedback configuration information and the second feedback configuration information jointly indicate the configuration of the feedback information specific to the uplink data of the terminal device.

13. The apparatus according to claim 7, wherein the feedback message is Common DCI.

14. A data transmission feedback apparatus, comprising:

a processor; and

a transceiver, communicatively coupled with the processor, configured to;

send feedback configuration information to a terminal device, wherein the feedback configuration information indicates a configuration of feedback information specific to uplink data of the terminal device, and

receive the uplink data from the terminal device, and

send a feedback message based on the configuration of the feedback information specific to the uplink data of the terminal device, wherein the feedback message carries the feedback information of the uplink data.

15. The apparatus according to claim 14, wherein that the transceiver is configured to send, to the terminal device, higher layer signaling that carries the feedback configuration information.

16. The apparatus according to claim 15, wherein the transceiver is further configured to send activation instruction information to the terminal device, wherein the activation instruction information instructs the terminal device to activate the configuration indicated by the feedback configuration information.

17. The apparatus according to claim 14, wherein the transceiver is configured to send, to the terminal device, downlink control information (DCI) that carries the feedback configuration information.

18. The apparatus according to claim 14, wherein the transceiver is configured to:

send, to the terminal device, higher layer signaling that carries first feedback configuration information; and

send, to the terminal device, downlink control information that carries second feedback configuration information, wherein

the first feedback configuration information and the second feedback configuration information jointly indicate the configuration of the feedback information specific to the uplink data of the terminal device.

19. The apparatus according to claim 14, wherein the feedback message is Common DCI.