RedCap UE Cell Access Control via Category-Specific Parameters
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Solution Overview
Problem
The introduction of a RedCap UE type with lower complexity and lower cost in 3GPP Release 18 poses challenges for network access control, as there is currently no clear method for refined terminal access control.
Innovation Solution
A communication processing method and system that includes a terminal device and a network device, where the network device transmits first information related to cell access of RedCap UE, and the terminal device receives and processes this information to determine its access permissions based on configured parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a new RedCap UE type with lower complexity and lower cost is introduced in 3GPP Release 18, then device complexity and cost are reduced, but network access control becomes more challenging
Solution Approach 1:
The patent segments access control by dividing terminals into different categories (RedCap UE with lower complexity vs. other UE types) and applying category-specific access control parameters. The network device transmits different first information to different terminal categories, enabling fine-grained access management for the new low-complexity RedCap UE type while maintaining existing control mechanisms for other terminals.
Solution Approach 2:
The patent applies local quality by providing category-specific access control information to different terminal types. The network device determines terminal category and transmits corresponding first information (access control parameters) tailored to each category's characteristics, allowing optimized access control for low-complexity RedCap UE while preserving network management flexibility.
2Adaptability or versatility
If access control parameters are made more granular for different terminal types, then access control flexibility is improved, but information transmission complexity increases
Solution Approach 1:
The patent extracts essential access control parameters into separate first information messages that are transmitted only when needed. Instead of continuously transmitting complete access control configurations for all terminal types, the network device extracts and transmits only the necessary category-specific parameters (first information) to terminals requiring enhanced access control, reducing overall information overhead while maintaining flexibility.
Solution Approach 2:
The patent applies partial action by providing access control information selectively based on terminal category. The network device determines which terminals require category-specific first information and transmits only to those terminals, rather than universally transmitting all access control parameters to all terminals, thereby reducing information transmission overhead while maintaining necessary access control flexibility.
Data Source
AI summary
A communication processing method a terminal device and a network device are provided. The method includes: a terminal device receiving first information, wherein the first information is related to cell access of a reduced capability terminal, the reduced capability terminal being a terminal device that supports a maximum bandwidth of less than 20 megahertz.