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Method and device for sending feedback information and method and device for receiving feedback information

A technology for receiving and feeding feedback information, applied in the field of sending feedback information, can solve the problems of increased transmission delay, terminal equipment failing to send feedback information in time, and network equipment failing to know in time, and achieving the goal of reducing transmission delay. Effect

Active Publication Date: 2020-08-25
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In some scenarios, when the terminal device successfully receives the downlink data, the network device may not be able to know the situation in time, for example, in the unlicensed band new radio access technology (new radio access technology unlicensedband, NR-U), the terminal device Failure to send feedback information in time due to failure to seize uplink transmission resources, or network equipment fails to demodulate feedback information in time, then network equipment needs to wait for receiving and successfully demodulating feedback information before determining whether to instruct terminal equipment Retransmit feedback information, resulting in increased transmission delay

Method used

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  • Method and device for sending feedback information and method and device for receiving feedback information
  • Method and device for sending feedback information and method and device for receiving feedback information
  • Method and device for sending feedback information and method and device for receiving feedback information

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Embodiment Construction

[0065] The technical solution in this application will be described below with reference to the accompanying drawings.

[0066] First introduce the application scenario of this application, figure 1 is a schematic diagram of a communications system suitable for use in this application.

[0067] The communication system 100 includes a network device 110 and a terminal device 120 . The terminal device 120 communicates with the network device 110 through electromagnetic waves.

[0068] In this application, the terminal device 120 may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem with wireless communication functions, for example, the Third Generation Partnership Project (3 rd Generation Partnership Project (3GPP) defines user equipment (user equipment, UE), mobile station (mobile station, MS), soft terminal, home gateway, set-top box, site, etc.

[0069] The network devi...

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Abstract

The invention provides a method and device for sending feedback information and a method and device for receiving the feedback information. The communication equipment applying the method sends or receives the feedback information through different feedback processes. When the network equipment does not determine whether the previous feedback information is successfully received, the terminal equipment is indicated to use the new feedback process to send the feedback information of the next downlink data, and the next downlink data can be scheduled without waiting for the completion of the processing of the previous feedback information, so that the transmission delay is reduced.

Description

technical field [0001] The present application relates to the communication field, and in particular to a method and device for sending feedback information, and a method and device for receiving feedback information. Background technique [0002] In a wireless communication system, after the network device sends downlink data to the terminal device, it needs to determine whether the terminal device has received the downlink data according to the feedback information sent by the terminal device. For example, when the terminal device receives the downlink data, it can send an acknowledgment (acknowledgment, ACK), after the network device receives the ACK, it can determine that the terminal device has successfully received the downlink data; when the terminal device does not receive the downlink data, the terminal device can send a negative acknowledgment (NACK), and the network After receiving the NACK, the device can determine that the terminal device has not received the do...

Claims

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Application Information

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IPC IPC(8): H04L1/16H04L5/00H04W72/04
CPCH04L1/1607H04L5/0055H04L5/0094H04W72/23H04L1/1854H04L1/1896H04L1/1822
Inventor 张佳胤贾琼
Owner HUAWEI TECH CO LTD
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