Unlicensed Spectrum Data Block Scheduling for 5G Reliability
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Solution Overview
Problem
In mobile communication networks, especially in 5G NR systems using unlicensed spectrums like 2.4 GHz and 5 GHz, the uncertainty of channel occupation leads to unreliable data transmission due to competition with other systems, such as WiFi, as base stations cannot determine the appropriate data block size for unlicensed spectrum resources.
Innovation Solution
A method where a base station configures a data block of fixed size and generates scheduling instructions based on transmission configuration information after successful channel detection, ensuring the data volume matches the preset block size, thereby adapting to idle channel resources and reducing transmission unreliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the base station continues a resource scheduling manner of a licensed spectrum when transmitting information through the unlicensed spectrum resource, then the scheduling efficiency is improved, but the transmission reliability deteriorates due to channel occupation uncertainty
Solution Approach 1:
The patent applies dynamics by making the data block size adaptable rather than fixed. The base station determines the data block size based on the actual available resources detected through LBT mechanism, allowing the system to dynamically adjust between licensed and unlicensed spectrum characteristics. This resolves the contradiction by enabling efficient scheduling while adapting to the uncertain channel occupation in unlicensed bands.
Solution Approach 2:
The patent changes the parameter of data block size from a fixed value to a variable that depends on resource availability. By adjusting the data block size parameter based on LBT detection results and actual channel conditions, the system maintains high scheduling efficiency while ensuring reliable transmission on unlicensed spectrum resources.
2Device complexity
If the base station uses a fixed data block size for transmission configuration, then the transmission configuration simplicity is improved, but the adaptability to available unlicensed spectrum resources deteriorates
Solution Approach 1:
The patent implements dynamics by making the data block size configurable and adaptable. The base station can determine appropriate data block sizes based on LBT detection outcomes and actual resource availability, allowing the system to balance between configuration simplicity and resource adaptability. This enables efficient utilization of unlicensed spectrum while maintaining manageable configuration complexity.
Solution Approach 2:
The patent applies parameter changes by allowing the data block size parameter to vary according to channel conditions and resource availability. This flexibility enables the system to adapt to different unlicensed spectrum scenarios without significantly increasing configuration complexity, as the base station can select from predefined data block size options based on detected conditions.
3Object-affected harmful factors
If the base station performs channel detection on unlicensed spectrum, then the interference avoidance capability is improved, but the channel occupation uncertainty increases
Solution Approach 1:
The patent applies preliminary action by performing LBT channel detection before data transmission. This advance detection allows the base station to identify available unlicensed spectrum resources and plan transmission accordingly, reducing interference with other systems while managing channel occupation uncertainty through proactive resource assessment.
Solution Approach 2:
The patent uses parameter changes by adjusting the data block size based on LBT detection results. By modifying the transmission parameters according to detected channel conditions, the base station can optimize transmission reliability while maintaining interference avoidance capabilities in the unlicensed spectrum environment.
Data Source
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AI summary
Provided are a method and apparatus for transmitting information, a base station and a terminal. The method includes: determining transmission configuration information of a transmission region based on a preset size of a data block after channel detection on an unlicensed spectrum succeeds, the transmission region bearing downlink data transmission; generating a scheduling instruction according to the transmission configuration information, and transmitting it to a target terminal; and performing the downlink data transmission according to the transmission configuration information based on the preset size of the data block. The method for transmitting the information provided by the present disclosure may effectively transmit information with an unlicensed spectrum resource, and improve the reliability of information transmission of the unlicensed spectrum.