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Method and device for transmitting feedback information

A feedback information and transmission method technology, applied in the field of feedback information transmission methods and devices, can solve problems such as feedback resource conflicts

Active Publication Date: 2022-05-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a feedback information transmission method and device, which helps to solve the problem of feedback resource conflict, thereby ensuring the reliability and efficiency of data transmission

Method used

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  • Method and device for transmitting feedback information
  • Method and device for transmitting feedback information
  • Method and device for transmitting feedback information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0325] Embodiment 1. Divide the frequency-domain feedback resource on the time slot where the feedback information is located into at least two feedback resource subsets, that is, the frequency-domain feedback resource on the time slot where the feedback information is located includes at least two feedback resource subsets. Specifically, The time slot where the feedback information is located is the second time slot where the feedback information is located. The at least two feedback resource subsets include a first feedback resource subset, that is, the first feedback resource subset is one of the at least two feedback resource subsets, and the second frequency domain resource where the feedback information is located belongs to the first resource feedback subset.

[0326] Optionally, the unit (also called granularity) of the second frequency domain resource where the feedback information is located is the same as that of the first frequency domain resource where the first d...

Embodiment 2

[0401] Embodiment 2: Perform code division on the feedback resources, that is, determine the sequence parameters according to the first time slot index and / or the first frequency domain resource index, and determine different sequences according to the determined different sequence parameters, thereby reducing or solving the gap between the feedback resources. conflict between.

[0402] In an implementation manner, different feedback information values ​​correspond to different sequence parameters, and the first device determines the sequence that bears the feedback information according to the sequence parameters corresponding to the feedback information values. For example, different content of the feedback information corresponds to different feedback information values. For example, the feedback information corresponding to the feedback information that only feeds back an affirmative response is 00, the feedback information that only feeds back a negative response is 01, an...

Embodiment 3

[0454] Embodiment 3: Divide the feedback resources into at least two groups, that is, the feedback resources include at least two groups, and the at least two groups of feedback resources respectively correspond to different processing capabilities.

[0455] The processing capability refers to the processing capability of the first device that sends the feedback information.

[0456] Optionally, the third embodiment may be used in combination with the first and second embodiments above, so as to further ensure that there is no conflict between feedback resources.

[0457] Conflicts may occur due to overlapping of devices with different processing capabilities on the same feedback resource. Exemplarily, the time slot position of the feedback resource, that is, the second time slot index is determined in such a way that nf≥(n+Ki), and nf=m*N, that is, the time slot position nf of the feedback resource of the data on time slot n Cannot be less than n+Ki, and appear on feedback s...

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Abstract

The embodiment of the present application relates to a feedback information transmission method and device, which are used to solve the conflict between feedback resources when the feedback cycle is greater than 1, and ensure the reliability and accuracy of feedback information transmission, which can be applied to the Internet of Vehicles, such as V2X, LTE ‑V, V2V, etc., or can be used in the fields of intelligent driving, intelligent networked vehicles, etc., the method is: the first device determines the feedback information corresponding to the first data according to the first resource index of the received first data Feedback resources, the feedback resources include one or more of time domain resources, frequency domain resources and sequence resources; the first device sends the feedback information through the feedback resources, where for transmission in different time slots When the feedback information of the first data is fed back in the same time slot, at least one of the time domain resources, frequency domain resources and sequence resources in the feedback resources occupied by the feedback information is different.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a feedback information transmission method and device. Background technique [0002] Direct communication between devices includes device to device (Device to Device, D2D) communication, vehicle to everything (vehicle to everything, V2X) communication, V2X includes vehicle to vehicle (Vehicle to Vehicle, V2V) communication, vehicle Communication with pedestrians (Vehicle to Pedestrian, V2P) or vehicle and infrastructure / network (Vehicle to Infrastructure / Network, V2I / N). [0003] In the V2X technology being researched by 3GPP, it is required to support low-latency and highly reliable transmission. In order to achieve highly reliable transmission, a feasible way is that the receiver (also called receiving device) makes corresponding feedback on the data sent by the transmitter (also called sending device), so as to ensure the high reliability of the communi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04W72/04H04L1/16
CPCH04L5/0055H04L5/0094H04L1/16H04W72/0446H04W72/0453H04W72/20H04W72/04H04L5/00
Inventor 黎超王俊伟黄海宁刘哲
Owner HUAWEI TECH CO LTD
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