Hybrid automatic repeat request feedback method and device, and user equipment

Abstract

The present invention provides a hybrid automatic repeat request feedback method and device, and user equipment. The method comprises the steps of: when a time-frequency resource employed to receive initial data sent by a base station is forcibly occupied by the other one user, determining a required coding time increment according to the time of receiving the first transmission data or compensating transmission data and the time of receiving a preemption indication; determining the time of sending HARQ (Hybrid automatic repeat request) feedback to the base station according to the time of receiving the first transmission data or compensating transmission data, the predetermined HARQ feedback time set by the base station and the coding time increment; and sending the HARQ feedback to the base station at the time of determining sending of the HARQ feedback to the base station. The hybrid automatic repeat request feedback method and device, and user equipment can improve the accurate coding probability and can ensure the reliability of the HARQ feedback.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a hybrid automatic repeat request feedback method, device and user equipment. Background technique [0002] In 5G communication services, in order to improve resource utilization, users with different data transmission durations can reuse the same time-frequency resources, that is, to meet the low-delay requirements of short-duration users, the base station can The short-duration users are scheduled on the time-frequency resources of the long-duration users, so that the short-duration users occupy the time-frequency resources of the long-duration users, resulting in the destruction of some data of the long-duration users. When the time-frequency resource preemption occurs, the base station can send a preemption indication (PreemptionIndication) to the long-duration user to indicate the time-frequency resource it is preempted to improve its correct decoding ...

AI Technical Summary

Problems solved by technology

[0004] When the time-frequency resource of a long-duration user is occupied by a short-duration user is between two occupation indication monitoring times, it may happen that the long-duration user is decoding and performing HARQ (Hybrid Automatic Repeat Request, Hybrid Automatic Repeat Request) feedback It is impossible to know the cause of partial data decoding errors before, which leads to a decrease in the probability of correct decoding; It may happen that for a long time, when the user performs soft merging of the seized data and the retransmission data, the seized error data cannot be removed according to the seized instruction, resulting in a decrease in the probability of correct decoding

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