5G Reduced Capability Terminal Dedicated System Message Configuration
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Solution Overview
Problem
Current LTE technologies, such as NB-IoT and MTC, fail to meet the increased data rate and reduced latency requirements of new Internet of Things services like video monitoring and smart home applications, as they are designed for low-rate and high-latency scenarios, necessitating a modification of the 5G new radio (NR) system to accommodate reduced capability terminals with lower costs and complexity.
Innovation Solution
The proposed solution involves configuring a dedicated system message for reduced capability terminals in 5G networks, which includes specific system parameters for cell access, such as downlink and uplink bandwidth part configuration information, to optimize message capacity and reduce resource waste, while separating these parameters from the first type of system information block (SIB1) to avoid capacity insufficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If NB-IoT and MTC technologies are used in LTE system, then low-rate and high-latency scenarios are supported, but data rate and latency requirements of new IoT services (video monitoring, smart home) cannot be met
Solution Approach 1:
The patent segments the system information into different types: first type system information block (SIB1) containing common information, and second type system information block containing reduced capability terminal-specific information. This segmentation allows optimized message capacity for different terminal types without wasting resources on unnecessary information.
Solution Approach 2:
The patent applies local quality by providing dedicated system parameters specifically for reduced capability terminals, including downlink and uplink bandwidth part configuration information tailored to their limitations. This allows the system to optimize message capacity for each terminal type's specific needs.
2Adaptability or versatility
If system parameters for reduced capability terminals are included in first type system information block, then terminal access is enabled, but message capacity becomes insufficient
Solution Approach 1:
The patent divides system information into two separate blocks: first type system information block for common information and second type system information block for reduced capability terminal-specific information. This segmentation prevents capacity insufficiency by dedicating appropriate message space to each terminal type.
Solution Approach 2:
The patent extracts reduced capability terminal-specific system parameters from the general system information and places them in a separate second type system information block. This extraction ensures that the first type block maintains sufficient capacity for common information while the second type block provides specialized parameters for reduced capability terminals.
3Loss of energy
If dedicated system message is configured for reduced capability terminals, then message capacity is optimized and resource waste is reduced, but system complexity increases
Solution Approach 1:
The patent segments system information into dedicated blocks for different terminal types, which optimizes message capacity and reduces resource waste by transmitting only necessary information to each terminal type, while the segmentation structure itself manages the added complexity through clear organization.
Solution Approach 2:
The patent changes system parameter configuration by introducing dedicated parameters for reduced capability terminals including downlink and uplink bandwidth part settings. This parameter optimization reduces resource waste by tailoring communication parameters to terminal capabilities, and the standardized parameter format helps manage system complexity.
Data Source
AI summary
A method for receiving a system message, applied to a terminal, and including receiving a dedicated system message, wherein the dedicated system message comprises a system parameter required for the terminal to access a cell; where the system parameter includes at least one of following: a first parameter for determining whether to allow access to a cell; or a second parameter for performing cell access.