MTC Terminal Modulation Order and Transport Block Size Determination
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Solution Overview
Problem
In LTE networks, determining an appropriate modulation method and transport block size (TBS) for terminals with low data transmission rates is inefficient, leading to unnecessary signaling overhead and suboptimal data transmission.
Innovation Solution
A method and apparatus for determining a modulation order and TBS in downlink data channels by using MCS and TBS tables, where the terminal and base station exchange channel state information to configure downlink control information, allowing the terminal to select an appropriate modulation method and TBS based on channel properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the same modulation method and TBS determination approach is used for all terminals, then the system is simple to operate, but it becomes inefficient for terminals with low data transmission rates
Solution Approach 1:
The patent applies local quality by creating terminal-specific MCS and TBS configurations based on individual channel properties. Different terminal types (e.g., MTC terminals with low data rates versus regular terminals) receive customized MCS tables and TBS determination methods tailored to their specific channel conditions and performance requirements, rather than using a universal configuration for all terminals.
Solution Approach 2:
The patent implements dynamics by making the MCS and TBS configuration adaptive to changing channel conditions. The base station determines appropriate MCS indices and TBS values based on real-time channel state information, allowing the system to dynamically adjust modulation and transport block parameters to match current channel quality and terminal capabilities.
2Productivity
If MCS and TBS are determined based on terminal-specific channel properties, then data transmission efficiency improves, but signaling overhead increases
Solution Approach 1:
The patent applies universality by designing MCS tables and TBS determination methods that can serve multiple terminal types through a unified framework. The same basic structure and signaling mechanisms are used across different terminal types, but with configurable parameters that adapt to specific requirements, reducing the need for entirely separate signaling systems for each terminal category.
Solution Approach 2:
The patent uses parameter changes to optimize the balance between transmission efficiency and signaling overhead. By carefully selecting and adjusting parameters such as MCS index ranges, TBS table configurations, and channel state information reporting formats, the system achieves terminal-specific optimization while keeping signaling overhead within acceptable limits through efficient parameter encoding and selection.
Data Source
AI summary
The present disclosure relates to a method and apparatus for configuring a resource for the transmission/reception of data. More particularly, the present disclosure relates to a method and apparatus for configuring an MCS and a TBS for an MTC terminal. Particularly, provided is a method and apparatus for determining a TBS by an MTC terminal. The method may include receiving scheduling information transmitted based on an MCS used for the MTC terminal and a TBS table and determining a TBS using the scheduling information provided by a base station.


