Unlicensed Spectrum Data Transmission Reliability
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Solution Overview
Problem
The unlicensed spectrum in communication technologies is prone to interference, leading to reduced data transmission reliability due to its open and uncontrollable nature, which cannot fully meet the increasing demand for mobile broadband and often results in data loss or damage.
Innovation Solution
A data transmission method and system where user equipment determines whether conditions such as priority level, transmission delay, or bit rate meet specific thresholds before transmitting data on an unlicensed spectrum, allowing only suitable data to be sent using this resource while indicating unsuitable data for transmission on the licensed spectrum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data is transmitted using the unlicensed spectrum, then frequency band utilization is improved and mobile broadband demand is met, but data transmission reliability deteriorates due to interference and data loss
Solution Approach 1:
The patent applies local quality by differentiating transmission conditions for different data types. Critical data (e.g., measurement reports, control signals) is transmitted only on licensed spectrum with high reliability, while non-critical data can utilize unlicensed spectrum for higher throughput. This spatial-quality differentiation resolves the contradiction by optimizing each data type's transmission path according to its specific requirements.
Solution Approach 2:
The patent implements dynamic spectrum selection where the base station and user equipment adaptively choose between licensed and unlicensed spectrum based on real-time channel conditions, data priority, and interference levels. This dynamic approach allows the system to maximize frequency band utilization when unlicensed spectrum is suitable while ensuring critical data always uses reliable licensed spectrum, thus resolving the reliability-utilization contradiction.
2Productivity
If the unlicensed spectrum is used for data transmission, then communication capacity is improved, but data security and integrity worsen due to the open and uncontrollable nature of the spectrum
Solution Approach 1:
The patent segments data into different priority levels and applies different transmission strategies. High-priority critical data is exclusively transmitted on licensed spectrum to ensure security and integrity, while low-priority data can use unlicensed spectrum for enhanced capacity. This segmentation resolves the contradiction by protecting critical information while utilizing unlicensed bandwidth for non-sensitive traffic.
Solution Approach 2:
The patent introduces an intermediary mechanism where the base station acts as a gatekeeper, evaluating data priority and channel conditions before allocating unlicensed spectrum resources. This intermediary control ensures that only appropriate data types access the open unlicensed spectrum, maintaining security and integrity while enabling capacity improvement for suitable traffic.
3Productivity
If critical data is transmitted on the unlicensed spectrum, then frequency band utilization is maximized, but transmission quality deteriorates due to strong interference between data
Solution Approach 1:
The patent applies local quality by assigning different quality requirements to different data types. Critical data with high transmission quality requirements is restricted to licensed spectrum, while non-critical data with lower quality requirements can tolerate unlicensed spectrum interference. This quality-based differentiation maximizes frequency utilization without compromising critical transmission quality.
Solution Approach 2:
The patent changes the parameter of spectrum allocation based on data characteristics. By evaluating data priority, packet size, and delay tolerance, the system dynamically adjusts which spectrum type (licensed or unlicensed) is allocated to each data packet. This parameter-based allocation ensures critical data receives high-quality licensed spectrum while maximizing overall frequency band utilization.
Data Source
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AI summary
A data transmission method, apparatus, and system are provided, where the method includes: receiving, by user equipment, a data scheduling request sent by a base station, where the data scheduling request carries resource information allocated to scheduled data by the base station, and the resource information includes an unlicensed spectrum resource; determining whether a condition for transmission of the scheduled data on an unlicensed spectrum is met; and if the condition for transmission of the scheduled data on the unlicensed spectrum is met, sending the scheduled data to the base station by using the unlicensed spectrum resource. In the present invention, data transmission reliability can be improved.