Unlock instant, AI-driven research and patent intelligence for your innovation.

Feedback method and device

A feedback information, pre-configured technology, applied in the field of communication, can solve the problem of no solution, and achieve the effect of improving transmission reliability

Active Publication Date: 2022-04-05
BEIJING SPREADTRUM HI TECH COMM TECH CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the SCI contains time-frequency resource indication information for N data transmissions of the same TB, if N times of PSSCH transmissions corresponding to the same TB will be fed back on the same PSFCH resource in the time domain, at this time, how does the Rx UE Feedback to the Tx UE whether the TB is received correctly, the industry has not proposed a suitable solution

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Feedback method and device
  • Feedback method and device
  • Feedback method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0061] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, those of ordinary skill in the art can obtain the

[0062] In the direct communication technology, two UEs communicate directly (Direct Communication) through the PC5 interface, and the direct communication can also be called Sidelink Communication (Sidelink Communication). Transmitter, Tx) UE, the UE that receives data is called a receiver (Receiver, Rx) UE. In the process of direct communication, there are two resource allocation methods. The first method is the scheduled resource alloca...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Embodiments of the present invention provide a feedback method and device, the SCI sent by the second UE to the first UE is used to indicate N time-frequency resources, and the second UE sends an SCI to each time-frequency resource in the N time-frequency resources The first UE sends a PSSCH, the N PSSCHs correspond to the same TB, the first UE determines L time-frequency resources according to the N time-frequency resources indicated by the first SCI, and the time domains of the PSFCH resources corresponding to the L time-frequency resources respectively same. Afterwards, the first UE feeds back to the second UE according to the PSFCH resource and the received PSSCH. With this scheme, when the first SCI indicates the time-frequency resources for N data transmissions to the same TB, the Rx UE determines L time-frequency resources according to the N time-frequency resources, and the L time-frequency resources in the L time-frequency resources The PSFCH resources corresponding to each time-frequency resource have the same time domain, and then feed back to the Tx UE based on the PSFCH resources with the same time domain, so as to achieve the purpose of improving transmission reliability.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a feedback method and apparatus. Background technique [0002] With the development of the 3rd Generation Partnership Project (3GPP), new radio (NR) has introduced Vehicle-to-Everything (V2X) technology. In V2X technology, vehicles and everything, For example, user equipment (User Equipment, UE), roadside units, etc. can communicate directly through the PC5 interface. The V2X technology is a key technical direction of the Long Term Evolution (Long Term Evolution, LTE) version 16 (Release 16, R16). [0003] In V2X communication, when the transmitter UE (Transmitter UE, Tx UE) sends service data, the Tx UE sends a secondary link physical layer control channel (Physical Sidelink Control Channel, PSCCH) to the Rx UE, and the PSCCH carries the secondary link control information ( sidelink control information, SCI), SCI may also be referred to as d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04L1/16H04W72/04H04W4/40H04W4/70
CPCH04L5/0055H04L5/0094H04L1/1607H04W72/044H04L5/0005H04W4/70H04W4/40H04W72/0446H04W72/20H04L1/16
Inventor 曲鑫张晋瑜
Owner BEIJING SPREADTRUM HI TECH COMM TECH CO LTD