Transmission Device Grouping for Error Tolerance
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Solution Overview
Problem
Digital transmission schemes face challenges in fully utilizing channel capacity and ensuring reliable information transfer due to the need for complex control mechanisms and inappropriate modulation schemes for channel states, while analog transmission schemes struggle with securing information transmission.
Innovation Solution
A radio transmission system that divides transmission information into multiple groups with different error tolerance levels, using error detection and correction codes, and transmitting these groups using various modulation schemes to adapt to channel conditions without requiring continuous channel state measurement and feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If digital transmission scheme is used with switching between modulation schemes and error correction coding schemes, then secure transmission can be performed and optimal information amount can be transmitted, but processing load and overhead are increased by complex control such as measuring channel state and feeding back measurement result
Solution Approach 1:
The transmission information is divided into multiple information groups (first information group, second information group, etc.), each with different error tolerance levels. This segmentation allows different modulation schemes to be applied to different groups without requiring complex overall control, reducing processing load while maintaining reliable transmission of critical information.
Solution Approach 2:
Different modulation schemes are applied to different information groups based on their error tolerance characteristics. The first information group (with higher error tolerance) uses a first modulation scheme, while the second information group (with lower error tolerance) uses a second modulation scheme. This local differentiation optimizes transmission reliability for each group without requiring complex global channel state measurement and control.
2Productivity
If digital transmission scheme is used with inappropriate modulation scheme for channel state, then channel capacity cannot be fully utilized or information cannot be transmitted at all, but avoiding this requires complex channel state measurement and feedback control
Solution Approach 1:
By segmenting information into groups with different error tolerance levels and assigning appropriate modulation schemes to each group, the system can fully utilize channel capacity without requiring complex real-time channel state measurement and feedback control. Each group is transmitted with a modulation scheme suited to its error tolerance, ensuring efficient channel utilization.
Solution Approach 2:
The system changes the modulation scheme parameter differently for different information groups based on their error tolerance characteristics rather than based on real-time channel state feedback. This allows the system to adapt to channel conditions effectively without the overhead of complex measurement and control mechanisms.
3Adaptability or versatility
If analog transmission scheme is used, then transmission performance automatically improves as channel state improves and information amount according to channel state can be transmitted, but it is difficult to secure transmission of information
Solution Approach 1:
The system combines the adaptability of analog transmission with the reliability of digital transmission by segmenting information into multiple groups with different error tolerance levels. Each group is transmitted using appropriate digital modulation schemes, ensuring that critical information is securely transmitted while less critical information can adapt to channel conditions, thus achieving both adaptability and reliability.
Solution Approach 2:
The invention creates a composite transmission approach that merges the advantages of both analog and digital schemes. It uses digital modulation schemes with different error tolerances for different information groups, combining the channel adaptation capability of analog systems with the information security of digital systems, resulting in a hybrid transmission strategy that achieves both adaptability and reliability.
Data Source
AI summary
A transmission device (100) transmits transmission information to a reception device (200) via a radio channel. The transmission device (100) includes: a grouping unit (110) configured to divide the transmission information into a plurality of information groups; an error detection code adding unit (120) configured to add an error detection code to each of the plurality of information groups; and a transmission processing unit (140) configured to perform a process of transmitting the plurality of information groups to the reception device (200). The transmission processing unit (140) performs, for each information group included in the plurality of information groups, a transmission process by using a method having different error tolerance on the radio channel.