Overlapping Bandwidth Part Data Transmission in 5G NR
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Solution Overview
Problem
In 5G NR communication systems, terminal devices often have limited bandwidth capabilities, requiring network devices to configure multiple bandwidth parts (BWPs) for efficient data transmission, but existing methods do not effectively manage data transmission across overlapping BWPs, leading to inefficiencies and reduced data transmission success rates.
Innovation Solution
The proposed method involves receiving and sending control information to indicate data channels on multiple BWPs with overlapping frequency domain resources, allowing data to be transmitted on one BWP while redundancy versions are parsed across multiple BWPs, improving resource utilization and data transmission success rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple BWPs are configured for terminal devices with limited bandwidth capability, then resource utilization efficiency is improved, but data transmission success rate is reduced due to overlapping frequency domain resources
Solution Approach 1:
The patent segments the data transmission process by dividing data into multiple parts and transmitting them through different BWPs. When multiple BWPs overlap in frequency domain, the terminal device can receive control information indicating data channels on different BWPs, parse redundancy versions from multiple BWPs, and reconstruct the original data. This segmentation approach allows efficient use of overlapping frequency resources while maintaining transmission reliability through distributed redundancy across multiple segments.
2Reliability
If redundancy versions are parsed across multiple overlapping BWPs, then data transmission success rate is increased, but system complexity increases due to multi-BWP coordination
Solution Approach 1:
The patent implements multi-functionality by enabling control information to serve multiple purposes simultaneously. The control information not only indicates data channels on different BWPs but also provides redundancy version information that can be parsed across multiple BWPs. This universal control mechanism reduces the need for separate coordination protocols, thereby managing system complexity while achieving reliable data transmission through multiple overlapping BWPs.
Data Source
AI summary
This application discloses a communication method that includes: receiving first control information of a first bandwidth part (BWP) and second control information of a second BWP, and receiving a first data channel and a second data channel based on the first control information. The first BWP includes a first frequency domain resource and a second frequency domain resource. The second BWP includes a third frequency domain resource, and the third frequency domain resource and the second frequency domain resource overlap. The first data channel is located on the first frequency domain resource, and the second data channel is located on the third frequency domain resource. The foregoing method provides a manner of transmitting data on the first and second BWPs that partially overlap.