Code Block Multiplexing for High-Rate Low-Power Receivers
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Solution Overview
Problem
Conventional satellite transmission systems face challenges in achieving high data rates for advanced services like high-definition video while maintaining low power consumption and cost-effectiveness, requiring expensive equipment with high power consumption to support higher data rates.
Innovation Solution
A system and method that multiplexes multiple outroute streams using Time Division Multiplexing (TDM) or Code Division Multiplexing (CDM) schemes, allowing a single transmitter to send multiple streams at a higher rate, and a receiver to process only the necessary streams, reducing complexity, cost, and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional transmission systems use higher data rates to support advanced services, then service quality and throughput are improved, but equipment cost and power consumption increase significantly
Solution Approach 1:
The transmitter segments multiple outroute streams into separate code blocks that are multiplexed together. Each code block can be independently processed and transmitted, allowing the system to achieve high aggregate throughput while individual processing units operate at manageable data rates, reducing power consumption per unit.
Solution Approach 2:
Multiple outroute streams are merged into a single multiplexed stream using TDM or CDM schemes. This combining allows the system to transmit multiple data streams simultaneously over the same physical channel, achieving high overall throughput without requiring proportionally high data rate equipment for each individual stream.
2Adaptability or versatility
If conventional systems increase data rates to support high-definition video and advanced services, then service capability is improved, but equipment complexity and cost increase
Solution Approach 1:
The multiplexing apparatus provides a universal framework that can handle multiple different outroute streams with different characteristics. The same multiplexing structure supports various service types including high-definition video and other advanced services, eliminating the need for specialized equipment for each service type.
Solution Approach 2:
The multiplexing apparatus acts as an intermediary between multiple outroute streams and the transmission channel. It provides a standardized interface that simplifies the transmission process by handling the complexity of multiplexing multiple streams, allowing simpler receiver equipment to process the combined stream by selecting only the needed code blocks.
3Productivity
If multiple streams are transmitted simultaneously at high rates, then total data capacity is improved, but receiver processing complexity increases
Solution Approach 1:
The receiver extracts only the specific code blocks needed from the multiplexed stream based on the timeplan information. This selective extraction approach allows the receiver to handle high-capacity multiplexed streams without processing the entire stream at full rate, reducing receiver processing complexity while maintaining high data capacity.
Solution Approach 2:
The system uses preliminary timeplan information to pre-configure which code blocks should be processed. This preliminary action allows the receiver to prepare for selective processing before the actual data arrives, reducing real-time processing complexity while maintaining high data capacity throughput.
Data Source
AI summary
A receiver is used with third code blocks based on first code blocks, second code blocks, and a planning code block. The first code blocks are associated with a first sequence number and modulated with a first modulation scheme. The second code blocks are associated with a second sequence number and modulated with a second modulation scheme. The planning code block associates the third code blocks with the first code blocks and the second code blocks. The receiver includes a de-multiplexing portion, which includes a code block selector and a look up table, that outputs a de-multiplexed signal based on the third code blocks. The code block selector selects a code block from the third code blocks to output as the de-multiplexed signal based on entries in the look up table. The receiver also includes a recovery portion that outputs received code blocks based on the de-multiplexed signal.