Multi-Path Transmission with Path-Hopped Error Correction Data
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Solution Overview
Problem
Current MIMO technologies face challenges in maintaining data transmission reliability and throughput due to dead spots and changes in transmission paths, with retransmission control and adaptive modulation control leading to decreased throughput.
Innovation Solution
A transmitting apparatus that establishes multiple transmission paths for user data and error correction data, with error correction data transmitted through different paths in a path-hopping manner, using distinct error correction methods and configuration data to enhance data reachability without significantly reducing transmission rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If retransmission control is used to enhance data reachability, then reliability is improved, but throughput decreases due to retransmission delay
Solution Approach 1:
The patent segments the data transmission into user data units and error correction data units, transmitting them through different transmission paths. The error correction data is separated and transmitted via a dedicated path (fixed or path-hopping) to provide reliability without requiring retransmission of the entire data packet, thus maintaining throughput.
Solution Approach 2:
The patent applies preliminary action by transmitting error correction data in advance through dedicated transmission paths before the user data transmission completes. This preliminary transmission of error correction information enables the receiving apparatus to correct errors without waiting for retransmission, thereby maintaining high throughput while ensuring reliability.
2Reliability
If adaptive modulation control is used to enhance data reachability, then reliability is improved, but throughput decreases due to decreased transmission rate
Solution Approach 1:
The patent segments the transmission system into multiple parallel transmission paths, with at least one path dedicated to error correction data and at least two paths for user data. This segmentation allows the system to maintain high transmission rates across multiple paths while using error correction data to ensure reliability, avoiding the need to reduce modulation rate.
Solution Approach 2:
The patent changes the transmission parameter by using multiple simultaneous transmission paths with different characteristics. Instead of changing the modulation rate adaptively (which reduces throughput), the system changes the path selection and error correction strategy to maintain both high transmission rate and reliability.
3Reliability
If multiple transmission paths are established for user data, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent makes the transmission paths serve multiple functions: some paths transmit user data while others transmit error correction data. The same path infrastructure is used for both purposes, reducing the need for separate dedicated paths and thereby reducing overall system complexity while maintaining reliability.
Solution Approach 2:
The patent establishes error correction data transmission paths in advance before actual data transmission begins. By pre-configuring which paths will carry error correction data and which will carry user data, the system simplifies the management of multiple paths during operation, reducing complexity.
Data Source
AI summary
A transmitting apparatus for transmitting user data, includes: an establishing section that establishes three or more transmission paths for a receiving apparatus; a first generation section that generates a user data unit which includes user data to be transmitted to the receiving apparatus; and a second generation section that generates an error correction data unit which includes error correction data to be used for error correction of the user data to be transmitted to the receiving apparatus. At least one of the three or more transmission paths transmits the error correction data unit, and at least two of the three or more transmission paths transmits the user data unit.