Dynamic Frequency Selection for Telecommunication Coverage and Data Rate
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current telecommunication systems face a conflict between achieving wide coverage and high data rates, as low frequencies are better for Non-Line-Of-Sight communications but are in short supply, while high frequencies offer higher data rates but poor penetration, leading to dissatisfaction with coverage area.
Innovation Solution
A method that dynamically selects operating frequencies from non-adjacent frequency intervals, allowing adaptive choice between lower frequencies for NLOS conditions and higher frequencies for high-data-rate communications, without network handovers, using additional frequency shifters and a single baseband unit, and prioritizing frequency allocation based on communication conditions and mobility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If low frequencies are used for communication, then wide coverage and NLOS communication capability are improved, but available bandwidth and data rate deteriorate
Solution Approach 1:
The patent implements dynamic frequency selection where the operating frequency is adaptively changed based on communication conditions. The system switches between low frequencies (for coverage and NLOS) and high frequencies (for data rate) in real-time, making the frequency resource dynamic rather than static. This resolves the contradiction by allowing the system to optimize for coverage when needed and for data rate when conditions permit.
Solution Approach 2:
The patent changes the operating frequency parameter dynamically based on communication requirements. By selecting from multiple frequency intervals (first interval with lower frequencies, second interval with higher frequencies), the system can adjust the frequency parameter to match current needs - using lower frequencies for NLOS/coverage scenarios and higher frequencies for high-data-rate scenarios, thus resolving the fixed trade-off between coverage and data rate.
2Productivity
If high frequencies are used for communication, then data rate and bandwidth are improved, but penetration capability and coverage area deteriorate
Solution Approach 1:
The system dynamically adjusts frequency selection based on real-time communication conditions. When high data rate is required and channel conditions permit, the system switches to higher frequencies in the second interval. When coverage or penetration becomes critical, it transitions to lower frequencies in the first interval. This dynamic adaptation resolves the contradiction by allowing high frequencies to be used only when their coverage limitations are not problematic.
Solution Approach 2:
The patent employs parameter change by selecting operating frequencies from multiple discrete intervals. The system can switch between the first frequency interval (lower frequencies for coverage) and the second frequency interval (higher frequencies for data rate) based on communication requirements. This discrete parameter selection allows the system to optimize for data rate using high frequencies when needed while maintaining the ability to switch to coverage-optimized frequencies when necessary.
3Adaptability or versatility
If separate telecommunication systems are used to provide wide coverage and high data rate, then communication requirements are met, but network complexity and handover control deteriorate
Solution Approach 1:
The patent makes a single telecommunication system universal by enabling it to operate across multiple frequency intervals with different characteristics. The same network infrastructure and protocol stack handle both low-frequency (coverage-oriented) and high-frequency (data-rate-oriented) communications, eliminating the need for separate specialized systems. This multi-functionality within a single system resolves the contradiction by providing adaptability without increasing network complexity.
Solution Approach 2:
The patent merges the functionality of separate coverage-optimized and data-rate-optimized systems into a single unified system. By combining multiple frequency intervals into one system's operating range and using a single frequency selection mechanism to choose among them, the patent eliminates the need for separate systems and their associated handover complexity. The frequency selection step internally manages the transition between different operational modes without requiring external handover procedures.
Data Source
AI summary
A method for transmitting information between at least two transceivers TRA and TRB linked together by a communication channel, said information being carried by means of at least one carrying signal Csg having an operating frequency, includes, according to the invention, a frequency selection step in the course of which said operating frequency is dynamically selected among frequencies comprised within at least a first and a second non-adjacent frequency intervals.