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Hybrid automatic repeat request confirmation harq-ack transmission method and device

A hybrid automatic retransmission and request acknowledgment technology, applied in the field of communication, can solve the problem of no HARQ-ACK collision rules and so on

Active Publication Date: 2021-06-29
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Currently, there are no collision rules for HARQ-ACK to support both unicast and multicast transmissions on the sidelink of NR V2X, and no collision rules for HARQ-ACK with multiple unicast transmissions

Method used

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  • Hybrid automatic repeat request confirmation harq-ack transmission method and device
  • Hybrid automatic repeat request confirmation harq-ack transmission method and device
  • Hybrid automatic repeat request confirmation harq-ack transmission method and device

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Embodiment Construction

[0074] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same or similar elements. Although various aspects of the embodiments are shown in the drawings, the drawings are not required unless otherwise indicated.

[0075] The word "exemplary" dedicated to "used as examples, embodiments or illustrative" herein. Any embodiment as described herein as "exemplary" does not have to be construed as better or better than other embodiments.

[0076] Further, in order to better explain the present disclosure, numerous specific details are given in the specific embodiments below. Those skilled in the art will appreciate that there is no specific details, the present disclosure can also be implemented. In some examples, the methods, elements, and circuits known to those skilled in the art are not described in detail in order to fa...

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Abstract

The present disclosure relates to a HARQ-ACK transmission method and device for hybrid automatic repeat request acknowledgment, which can be applied to user equipment UE. The method includes: when a collision occurs between HARQ-ACKs of multiple unicast transmissions, selecting a first HARQ-ACK that meets a first preset condition from the HARQ-ACKs of the multiple unicast transmissions; The first HARQ-ACK. According to the method and device of the present disclosure, by setting the first preset condition, when a collision occurs between HARQ-ACKs of multiple unicast transmissions, the HARQ-ACK that meets the first preset condition is selected for transmission, realizing multiple When the HARQ-ACK of two unicast transmissions collides, the HARQ-ACK can still be transmitted normally.

Description

Technical field [0001] The present disclosure relates to the field of communication technologies, and more particularly to a mixed automatic retransmission request to confirm the transmission method and apparatus of the HARQ-ACK. Background technique [0002] The current system is for the UE (User Equipment, User Equipment) side, there is no situation in which multiple unicast transmission is present, and there is no scene in which unicast and multicast (groupcast) is present, and no Support for multicast HARQ-ACK (Hybrid Automatic Repeat Request Acknowledge, hybrid automatic reload request confirmation). [0003] HARQ is a technique that combines forward error correction coding (FEC) and automatic retransmission request (ARQ), and is determined by ACK / NACK to reload. The keywords of HARQ are storage, request retransmission, and consolidated demodulation. HARQ retransmission Based on ACK / NACK, HARQ ACK / NACK returns, it is fast and frequently returned with a 1-bit signal (Si...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04L1/16H04L1/18H04W72/04
CPCH04L1/1607H04L1/1812H04L5/0055H04W72/0446H04L1/16H04L1/18H04L5/00H04W72/04
Inventor 曲鑫
Owner SPREADTRUM COMM (SHANGHAI) CO LTD