Uplink Downlink Configuration Alignment for 5G Link Consistency
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Solution Overview
Problem
In 5G mobile communication, the independent selection of uplink and downlink transmission configurations by base stations and terminals leads to inconsistent judgments on link quality, resulting in transmission performance loss due to the lack of association between uplink and downlink information when affected by moving or blocking.
Innovation Solution
The method involves determining sending configuration information for downlink and uplink information based on pre-agreed associations, ensuring that uplink and downlink transmission configurations are coordinated to maintain consistent link quality, including configurations for numerology, transmission area, sending code sequences, power, and modulation schemes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the base station and terminal independently select transmission configurations based on separate link quality judgments, then each side can optimize its own transmission, but the uplink and downlink transmission policies become inconsistent leading to transmission performance loss
Solution Approach 1:
The patent merges the independent transmission configuration selection processes of the base station and terminal by introducing an association relationship between uplink and downlink information. When the base station determines downlink transmission configuration, it simultaneously determines the associated uplink transmission configuration, ensuring both sides use consistent transmission policies while maintaining independent optimization capabilities.
Solution Approach 2:
The patent implements a feedback mechanism where the base station's determination of downlink transmission configuration feeds back to guide the terminal's uplink transmission configuration selection. This feedback loop ensures that both uplink and downlink transmissions are coordinated based on the base station's comprehensive link quality assessment, resolving the inconsistency issue.
2Ease of operation
If separate link quality judgments are performed by base station and terminal, then each device can make independent transmission decisions, but different judgments on link quality result in inconsistent transmission policies
Solution Approach 1:
The patent introduces an intermediary mechanism where the base station acts as the central decision-maker for both uplink and downlink transmission configurations. The base station's link quality judgment serves as the intermediary reference that both uplink and downlink transmissions must follow, ensuring consistency while allowing the terminal to operate independently based on these coordinated configurations.
3Productivity
If uplink and downlink transmissions are not associated, then each can be optimized independently, but transmission performance is lost when affected by moving or blocking
Solution Approach 1:
The patent combines independent optimization with association by determining both downlink and uplink transmission configurations simultaneously based on the same link quality assessment. This merging ensures that when movement or blocking occurs, both uplink and downlink transmissions respond consistently, maintaining robustness while preserving optimization efficiency.
Data Source
AI summary
Disclosed is an information sending method. The method includes: determining first sending configuration information corresponding to downlink information; determining second sending configuration information corresponding to uplink information associated with the downlink information according to the first sending configuration information; and sending the uplink information according to the second sending configuration information. Also disclosed are an information sending apparatus and system, a base station, a terminal, and a computer-readable storage medium.