HARQ feedback time period determination method based on sidelink

Abstract

The embodiment of the invention, which relates to the technical field of communication, provides an HARQ feedback time period determination method based on sidelink. The method comprises the steps: acquiring a first time interval from the time when a signal receiving terminal receives a signal transmitted by a signal transmitting terminal to time when a hybrid automatic repeat request (HARQ) feedback is generated; determining a sending time period in which the signal transmitting terminal sends a signal to the signal receiving terminal; determining the longest time interval of the signal sentby the signal transmitting terminal; determining a sidelink time period of a channel used for carrying out sidelink signal transmission between the signal transmitting terminal and the signal receiving terminal; and determining a second time interval according to the first time interval, the sending time period, the longest time interval and the sidelink time period, and determining a feedback time period according to the second time interval. According to the scheme provided by the embodiment of the invention, the HARQ feedback time period is determined and the signal transmission efficiencybetween the signal transmitting terminal and the signal receiving terminald can be improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for determining a sidelink-based HARQ feedback time period. Background technique [0002] When the signal sending end and the signal receiving end apply HARQ (Hybrid Automatic RepeatreQuest, hybrid automatic repeat request) technology in the communication process, the signal receiving end decodes the received signal and sends HARQ feedback to the signal sending end to notify the signal sending end Whether the terminal signal decoding is successful. If the signal decoding is unsuccessful, the signal sending end will initiate a retransmission to the signal receiving end, which improves the reliability of signal transmission between the signal sending end and the signal receiving end. [0003] The multi-unicast scenario is a typical scenario of sidelink (thing-to-thing direct connection technology). The signal sender can send different signals to multiple signal rec...

AI Technical Summary

Problems solved by technology

If multiple signal receiving ends send HARQ feedback to the signal sending end in multiple different time periods, the signal sending end needs to receive the above HARQ feedback in different time periods respectively, and cannot send signals during the above time periods. Therefore, the signal The receiving end sends HARQ feedback in different time periods, which affects the signal sending end, resulting in low efficiency of signal transmission between the signal sending end and the signal receiving end.

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