5G NR Network Access Control for Reduced Capability User Equipment
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Solution Overview
Problem
5G NR networks face challenges in managing diverse user equipment (UE) capabilities, as reduced capability (RedCap) UEs have different wireless communication requirements than other UEs, leading to inefficiencies when camping on the same cell.
Innovation Solution
Implementing a system where 5G NR networks restrict access to cells based on predetermined criteria broadcast by base stations, allowing RedCap UEs to connect only if they meet specific parameters such as bandwidth, data rates, and power saving requirements, using a two-stage filtering process to determine compliance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If all types of UEs are allowed to camp on the same cell, then network coverage is maximized, but network performance deteriorates due to incompatible communication parameters
Solution Approach 1:
The patent segments UE devices into different categories (RedCap UEs and non-RedCap UEs) with distinct capability profiles. By categorizing devices based on their wireless capabilities, the network can apply different access policies and communication parameters to each segment, thereby maintaining high network performance while preserving broad coverage.
Solution Approach 2:
The patent implements local quality by allowing different cells to have different access restriction characteristics. Base stations can independently configure access restriction parameters based on local network conditions and capabilities, enabling tailored optimization for each cell while maintaining overall network coverage.
2Productivity
If access restrictions are imposed on cells, then network performance is improved through optimized parameters, but network coverage is reduced
Solution Approach 1:
The patent implements dynamic access restrictions where base stations can adjust access restriction parameters in real-time based on current network conditions, UE capabilities, and traffic demands. This dynamic approach allows the network to optimize performance when needed while maintaining coverage availability when conditions permit.
Solution Approach 2:
The patent changes key access parameters by introducing capability-based access restriction flags and criteria. Instead of fixed access policies, the system dynamically modifies access parameters based on UE capability matching, enabling performance optimization without permanently reducing coverage area.
3Use of energy by moving object
If RedCap UEs use different communication parameters, then power efficiency is improved, but device complexity increases
Solution Approach 1:
The patent implements self-service by enabling UEs to autonomously determine their own capability category and self-evaluate against access restriction criteria. RedCap UEs can independently identify their capability profile and determine compliance with access restrictions without requiring complex network-assisted capability negotiation, thereby maintaining low device complexity while achieving power efficiency benefits.
Data Source
AI summary
A user equipment (UE) may camp on a base station of a network. The UE receives, from the base station of a wireless network, a broadcast including access restrictions, wherein the access restrictions include one or more predetermined criteria that must be satisfied to camp on the base station. The UE then determines whether the UE satisfies the one or more predetermined criteria.