Wireless Data Distribution Across Frequency Channels to Reduce Bit Errors
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently reducing bit errors due to radio wave interference and fading, particularly when multiple frequency channels are involved, as they require redundant systems and cannot effectively handle simultaneous bit errors across channels.
Innovation Solution
A wireless communication system that divides user data into predetermined units and distributes them across multiple frequency channels for transmission and reception, using a division, distribution, extraction, and reproduction process to combine the data efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequency diversity is performed using multiple frequency channels, then the ability to reduce bit errors is improved, but the system complexity and requirement for redundant frequency channels increases
Solution Approach 1:
The patent segments user data into multiple units and distributes them across different frequency channels. Each user data unit is divided and mapped to different channels, so that if one channel experiences fading or interference, other channels can still deliver the data successfully. This segmentation approach reduces bit errors without requiring redundant systems.
Solution Approach 2:
The patent employs a universal distribution mechanism where the same set of frequency channels serves multiple users simultaneously through coordinated frequency hopping. The base station manages frequency channel allocation efficiently, allowing multiple users to share the frequency diversity benefit without requiring dedicated redundant channels for each user.
2Reliability
If multiple wireless facilities are deployed to configure diversity, then the ability to reduce radio wave interference is improved, but the device complexity and cost increases
Solution Approach 1:
The patent replaces physical diversity techniques (requiring multiple antennas and wireless facilities) with frequency-domain diversity. Instead of deploying multiple spatial facilities, the system uses multiple frequency channels to achieve diversity, substituting mechanical/spatial complexity with frequency-based processing that can be implemented with standard single-antenna receivers.
Solution Approach 2:
The patent changes the diversity parameter from spatial (multiple antennas) to frequency (multiple frequency channels). By utilizing frequency diversity, the system achieves interference reduction without requiring additional physical wireless facilities, as the diversity is achieved through frequency hopping and channel distribution rather than spatial deployment.
3Reliability
If redundant frequency channels are deployed for switching, then the ability to handle bit errors is improved, but the loss of energy and system resources increases
Solution Approach 1:
The patent applies partial action by distributing user data across only the necessary number of frequency channels rather than deploying full redundancy. The system dynamically allocates frequency channels based on actual data transmission needs, avoiding the energy waste of maintaining redundant channels that are not actively used for diversity purposes.
Data Source
AI summary
A wireless communication system transmits user data from a transmission device to a reception device. The transmission device includes division circuitry configured to divide user data into predetermined units, a distribution processing circuitry configured to distribute user data divided such that each of the plurality of pieces of user data is included in each of a plurality of frequency channels, and a transmitter configured to transmit the plurality of pieces of user data for each of the frequency channels. The reception device includes: a receiver to receive the plurality of pieces of user data, an extraction circuitry configured to extract each of the plurality of pieces of user data from each of the plurality of frequency channels, and reproduction circuitry configured to combine each of the plurality of pieces of user data extracted for each user and reproduce the combined user data.