CAG Access Control via RRC Parameters in Wireless Networks
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing radio resources and optimizing transmission mechanisms in multicarrier communication systems, particularly in radio access networks, where existing technologies struggle to dynamically adapt to varying radio conditions and user equipment capabilities.
Innovation Solution
The implementation of advanced radio access network architectures and protocols, including next-generation Node B (gNB) and evolved Node B (ng-eNB) nodes, which employ advanced modulation schemes like QAM and dynamic modulation and coding schemes, along with multi-beam operations and bandwidth adaptation, to enhance transmission efficiency and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If advanced modulation schemes and dynamic modulation and coding schemes are implemented, then transmission efficiency is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic modulation and coding schemes that adapt transmission parameters based on real-time radio conditions and user equipment capabilities. The system dynamically adjusts modulation order and coding rates to optimize transmission efficiency while managing complexity through conditional logic rather than fixed complex structures.
Solution Approach 2:
The system changes transmission parameters such as modulation scheme, coding rate, and resource allocation dynamically based on measured radio conditions and UE capabilities. This allows the system to achieve high transmission efficiency when conditions permit while reducing complexity when conditions are poor, resolving the contradiction between efficiency and complexity.
2Adaptability or versatility
If multi-beam operations and bandwidth adaptation are employed, then adaptability to varying conditions is improved, but device complexity increases
Solution Approach 1:
The patent divides the transmission into multiple beams and bandwidth parts, allowing independent optimization for different spatial directions and frequency ranges. Each beam and bandwidth part can be independently configured and managed, improving adaptability to varying radio conditions while keeping individual beam configurations manageable.
Solution Approach 2:
The gNB and UE are designed with multi-functional capabilities to handle multiple beams, bandwidth parts, and different modulation schemes within a unified framework. This universal design allows the system to adapt to various conditions using the same core infrastructure, reducing the complexity increase that would result from separate dedicated systems for each function.
3Productivity
If advanced radio access network architectures are implemented, then network efficiency is improved, but ease of operation deteriorates
Solution Approach 1:
The system implements self-service mechanisms where the gNB and UE automatically exchange capability information, perform measurements, and adjust transmission parameters without manual intervention. The network autonomously optimizes resource allocation, beam formation, and modulation schemes based on real-time conditions, improving network efficiency while maintaining ease of operation through automation.
Solution Approach 2:
The patent implements feedback mechanisms where UEs report their capabilities and measured radio conditions to the gNB, which then adjusts transmission parameters accordingly. This closed-loop control enables the network to maintain high efficiency by continuously adapting to changing conditions while keeping operation simple through automated feedback-driven adjustments.
Data Source
AI summary
A base station receives, from a wireless device, at least one first radio resource control (RRC) parameter comprising one or more identifiers of one or more closed access groups (CAGs). The base station transmits, to the wireless device, at least one second RRC parameter indicating that the wireless device is allowed to access a CAG of the one or more CAGs, wherein the at least one second RRC parameter comprises an identifier of the CAG. The base station receives a random access preamble via a cell associated with the CAG that the wireless device is allowed to access.