5G Terminal Decoding With Selective Outer Code Configuration
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Solution Overview
Problem
In the 5G communication system, there is a need for efficient data decoding methods that can handle multiple services such as enhanced mobile broadband (eMBB), ultra-reliable and low-latency communications (URLLC), and massive machine-type communications (mMTC) simultaneously, while minimizing terminal power consumption and calculation load.
Innovation Solution
A method for decoding data by efficiently setting an outer code, where a terminal receives setting information from a base station to determine whether to apply a second channel code, and performs decoding based on this information, including checking the number of code blocks that can be restored through channel coding and transmitting appropriate acknowledgments (ACK/NACK) to the base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If outer code decoding is always performed, then data transmission reliability is improved, but terminal power consumption and calculation load increase
Solution Approach 1:
The patent implements dynamic configuration of outer code decoding by allowing the base station to indicate through downlink control information whether outer code is configured for specific code blocks. The terminal adapts its decoding process accordingly, performing outer code decoding only when necessary, thus optimizing power consumption while maintaining reliability for critical data transmissions.
Solution Approach 2:
The patent changes the parameter of code block configuration by dividing transport blocks into multiple code blocks with different outer code configurations. Some code blocks are configured with outer code while others are not, based on service requirements. This parameter change allows selective application of outer code decoding to balance reliability and power consumption.
2Reliability
If outer code decoding is always performed, then data transmission reliability is improved, but terminal calculation load increases
Solution Approach 1:
The patent segments the transport block into multiple code blocks, where each code block can be independently configured with or without outer code. This segmentation allows the terminal to perform outer code decoding only on specific code blocks that require it, reducing overall calculation load while maintaining reliability for critical segments.
Solution Approach 2:
The patent applies outer code decoding partially rather than universally. By configuring outer code only for specific code blocks based on service requirements and channel conditions, the terminal performs the necessary decoding actions without the excessive calculation load of decoding all code blocks with outer code.
3Reliability
If multiple code blocks are configured with outer code, then data recovery capability is improved, but terminal power consumption increases
Solution Approach 1:
The patent applies different qualities of code configuration to different code blocks based on local requirements. Critical code blocks containing important data are configured with outer code for enhanced recovery capability, while less critical code blocks use simpler coding. This local quality differentiation optimizes power consumption while maintaining necessary data recovery capability.
4Productivity
If code blocks are divided and selectively configured, then decoding efficiency is improved, but device complexity increases
Solution Approach 1:
The patent implements a universal code block configuration mechanism where the base station can indicate outer code configuration for multiple code blocks through a unified signaling method. The terminal uses a standardized procedure to parse the indication information and apply the appropriate decoding strategy to each code block, achieving decoding efficiency without excessive complexity through multi-functional configuration.
Data Source
AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method for decoding by a terminal in a mobile communication system is provided. The method includes receiving data from a base station, receiving setting information on whether a second channel code which is an outer code for a first channel code is set from the base station, determining whether to decode the data by using the second channel code depending on the setting information, and performing the decoding based on a result of the determined.