Base Station Coding Scheme Switching for Multi-Scenario 5G Throughput

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Solution Overview

Problem

The 5G communication system faces challenges in integrating communication methods suitable for three major usage scenarios (EMBB, eMTC, and URLLC) while maintaining communication performance.

Innovation Solution

A communication apparatus that employs a combination of turbo and LDPC coding schemes, along with a bit selection unit using a circular buffer, to optimize modulation and coding rates for different scenarios, enabling efficient communication across multiple frequency bands.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple communication methods are integrated to support three major usage scenarios (EMBB, eMTC, URLLC), then the system's adaptability and versatility are improved, but the device complexity and difficulty of maintaining communication performance increase

Engineering Contradiction:

Improveadaptability to different usage scenariosVSAvoidcomplexity of integrating multiple communication methods

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the communication system into multiple independent cell groups, where each cell group can operate with different communication methods (LTE, NR, etc.) and parameters. This allows the system to support multiple usage scenarios simultaneously while keeping each cell group's configuration manageable and independent, thus reducing overall system complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent creates a universal cell group configuration framework that can accommodate different communication methods and usage scenarios through a common structure. The cell group concept provides a multi-functional platform that handles EMBB, eMTC, and URLLC scenarios using unified configuration parameters and management mechanisms.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Productivity

If different coding schemes (turbo and LDPC) are used for different scenarios, then communication performance and throughput are improved, but the device complexity increases

Engineering Contradiction:

Improvethroughput and communication efficiencyVSAvoidcomplexity of managing multiple coding schemes

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent implements dynamic selection of coding schemes (turbo coding, LDPC coding) based on the specific usage scenario and channel conditions. The system can adaptively switch between different coding methods within the cell group configuration, optimizing throughput for each scenario while managing complexity through centralized control and configuration management.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentEP3493436B1Base station device, terminal device, and communication method

Publication Date: 2023.08.02 SHARP KK

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AI summary

To improve communication performance such as a throughput and communication efficiency in a system where multiple communication schemes are used. An apparatus includes a transmitter configured to transmit a transmit signal generated from transmission bits, the transmitter including a coding unit configured to generate the transmission bits by coding and rate matching, the coding unit including a first coding unit, a first interleaving unit, a first bit selection unit, a second coding unit, a second interleaving unit, and a second bit selection unit. The first bit selection unit and the second bit selection unit are different in the initial position based on the same redundancy version.