Uplink Repetition Transmission Using Multiple Beams for Reliability
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Solution Overview
Problem
There is a need to improve the quality and reliability of uplink communication, particularly in scenarios such as live video streaming, where conventional repetition transmission methods in uplink communication using multiple beams are insufficient.
Innovation Solution
The base station device transmits repetition information and beam information to the terminal device, enabling the terminal device to perform repetition transmission using multiple beams in the uplink.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If repetition transmission is performed using multiple beams in uplink communication, then the quality and reliability of uplink communication are improved, but the device complexity and control overhead increase
Solution Approach 1:
The patent segments the repetition transmission process by separating beam information indication from repetition information indication. The base station device indicates beam information through DCI (Downlink Control Information) and repetition information through RRC (Radio Resource Control) signaling or other configurations. This segmentation allows independent optimization of each control mechanism, reducing overall system complexity while maintaining multiple beam repetition transmission capabilities for improved uplink reliability.
2Reliability
If repetition transmission is performed using multiple beams in uplink communication, then the quality and reliability of uplink communication are improved, but the control overhead increases
Solution Approach 1:
The patent merges the beam information indication with the repetition information indication by transmitting both through the same DCI message from the base station to the terminal. This combining approach reduces control overhead by avoiding separate signaling for beam selection and repetition configuration, while still enabling the terminal to perform multiple beam repetition transmission for improved uplink communication reliability.
Data Source
AI summary
A base station device transmits, to a terminal device, repetition information instructing repetition transmission of a signal in an uplink and beam information instructing a beam to be used for the repetition transmission in association with each other.