AMF RRC State Reporting for Radio Resource Efficiency
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Solution Overview
Problem
The increasing number of user equipment (UEs) and data transmission requirements in wireless communication systems pose challenges in efficiently utilizing limited radio resources, leading to higher latency and the need for improved methods in uplink/downlink data and control information transmission.
Innovation Solution
The implementation of an access and mobility management function (AMF) and a method for reporting on user equipment that enables efficient transmission and reception of signals, reducing latency and improving throughput in radio communication systems, particularly in systems supporting new radio access technology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of user equipments and data transmission requirements increase, then communication capacity demand increases, but radio resource utilization efficiency deteriorates
Solution Approach 1:
The patent segments the MAC layer into multiple sub-layers (first MAC sub-layer and second MAC sub-layer) that can independently operate with different numerologies. This allows the system to handle multiple UEs with diverse requirements simultaneously, improving communication capacity while efficiently utilizing radio resources by assigning appropriate sub-layers to different UE types.
Solution Approach 2:
The patent introduces dynamic configuration of numerology parameters (subcarrier spacing, cyclic prefix length) that can be adjusted based on UE requirements and channel conditions. The MAC entity can dynamically switch between different numerologies for different UEs or different time periods, enabling flexible resource allocation that improves both capacity and efficiency.
2Measurement precision
If more frequent reporting is performed to improve UE state awareness, then network control accuracy improves, but signaling overhead increases
Solution Approach 1:
The patent applies different reporting configurations to different UEs based on their specific characteristics and service requirements. Not all UEs are required to report at the same frequency or with the same parameters - only those that need it. This localized approach maintains accurate UE state awareness for relevant UEs while minimizing unnecessary signaling overhead for others.
Solution Approach 2:
The patent changes reporting parameters (period, threshold, format) based on UE state and service type. When UE state changes significantly or when specific service requirements arise, the reporting frequency and detail are adjusted accordingly. This adaptive parameter adjustment ensures accurate state awareness when needed while reducing overhead during stable states.
Data Source
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AI summary
A network device having an access and mobility management function (AMF) in the present invention transmits, to a base station, a request message for making a request to perform a radio resource control (RRC) state reporting for a user device. The base station transmits, to the network device, a reporting message including information for indicating whether the user device is in a RRC_CONNECTED state or a RRC_INACTIVE state.