Multicarrier Segment Classification for Spectrum Efficiency
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Solution Overview
Problem
Current communication systems, particularly 4G, face challenges in managing radio resources effectively for high-speed data transmission, especially in varying channel environments, leading to inefficiencies in data transmission and lack of guaranteed priority for data services.
Innovation Solution
A multicarrier communication system that divides the full frequency band into sub-carrier frequency bands and time intervals, classifying segments based on channel state and load prediction, allowing for dynamic adjustment of segment types to optimize data transmission according to channel conditions and resource availability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data transmission is performed without segment classification, then the system structure is simple, but the spectrum efficiency and data transmission priority cannot be optimized
Solution Approach 1:
The patent divides the frequency band into multiple segments, each carrying data of different priorities. This segmentation allows the system to transmit high-priority data on dedicated segments while maintaining overall spectrum efficiency, resolving the contradiction between simplicity and optimization.
Solution Approach 2:
Different segments are assigned different qualities based on data priority requirements. High-priority data receives dedicated segments with guaranteed transmission, while lower-priority data shares remaining resources, achieving localized optimization without system-wide complexity.
2Adaptability or versatility
If segment types are dynamically adjusted according to channel state, then the adaptability to channel variations is improved, but the control complexity increases
Solution Approach 1:
The patent implements dynamic segment type adjustment based on real-time channel state information. The system can switch between different segment allocation strategies (dedicated vs. shared) according to channel conditions, achieving adaptability while managing complexity through predefined transition rules.
Solution Approach 2:
The system incorporates feedback mechanisms where channel state information is continuously monitored and used to adjust segment allocation. This feedback loop enables automatic adaptation to channel variations without requiring complex manual control, balancing adaptability with manageable complexity.
3Reliability
If all sub-carriers are allocated to a single mobile subscriber, then the allocation is simple, but the system cannot provide differentiated QoS for different data types
Solution Approach 1:
The patent segments the frequency band into dedicated segments for high-priority data and shared segments for lower-priority data. This segmentation ensures QoS guarantees for priority data while allowing flexible allocation for other data types, achieving differentiated service without excessive complexity.
Solution Approach 2:
The system design allows segments to serve multiple functions - dedicated segments can be assigned to specific subscribers or data types, while shared segments can dynamically serve multiple purposes based on current demand and priority requirements, achieving universality with manageable complexity.
Data Source
AI summary
A multicarrier communication system is provided that divides a full frequency band into a plurality of sub-carrier frequency bands, generates a plurality of segments having a frequency-time domain occupied by a predetermined number of sub-frequency bands and a predetermined number of time intervals, and classifies a plurality of segment types according to each of the segments, for data transmission. A mobile subscriber (MS) measures a channel state, extracts channel state information corresponding to the channel state, estimates a segment type using the extracted channel state information, and if there is a need for a change in the segment type, the MS transmits a segment type change request message to a base station (BS). Upon receiving a segment type change grant message from the BS, the MS receives data in a segment type corresponding to the received message.