NR REDCAP Access Control by Terminal Type for Bandwidth Efficiency
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Solution Overview
Problem
In New Radio (NR) systems, reduced capability (REDCAP) terminals require more bandwidth resources for the same data rate compared to other terminals, leading to inefficient communication efficiency and performance due to inflexible access control, affecting the communication quality of deployed terminals.
Innovation Solution
An access control method is implemented where target access control parameters are determined based on terminal type, allowing or forbidding access, and specific access control categories are defined for REDCAP terminals, including reserved, occupied, and predefined categories, with additional indication information for REDCAP terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If unified access control parameters are used for REDCAP terminals and other terminals, then access control simplicity is maintained, but communication efficiency and system performance deteriorate due to REDCAP terminals occupying more bandwidth resources
Solution Approach 1:
The patent segments access control parameters by terminal type, creating separate parameter sets for REDCAP terminals and other terminals. This segmentation allows differentiated control where REDCAP terminals receive parameters optimized for their lower service priority and higher bandwidth requirements, while other terminals maintain their original parameters, thereby resolving the contradiction between control simplicity and communication efficiency.
Solution Approach 2:
The patent applies local quality by assigning specific access control parameters tailored to REDCAP terminal characteristics. Instead of uniform parameters, REDCAP terminals receive localized parameter configurations that account for their reduced capability and higher resource needs, ensuring optimal performance for each terminal type while maintaining overall system efficiency.
2Adaptability or versatility
If access control parameters are not differentiated for REDCAP terminals, then access control flexibility is maintained, but access control reliability deteriorates due to REDCAP terminals affecting communication quality of deployed terminals
Solution Approach 1:
The patent introduces segmentation by creating distinct access control parameter sets for different terminal types. This segmentation enables the system to adapt to REDCAP terminals specifically while maintaining reliability through differentiated control, resolving the contradiction between flexibility and reliability by allowing type-specific optimization.
Solution Approach 2:
The patent changes access control parameters based on terminal type identification. When a REDCAP terminal is detected, specific parameter modifications are applied to its access control configuration, enabling the system to adapt flexibly to different terminal capabilities while ensuring reliable operation by preventing REDCAP terminals from degrading overall communication quality.
Data Source
AI summary
Provided are an access control method, a first network node, a second network node, and a storage medium. The method includes: acquiring a target access control parameter according to a terminal type to which the first network node belongs; and determining access control information according to the target access control parameter, where the access control information includes access allowed or access forbidden.