L1/L2 Mobility Signaling for Efficient 5G Base-Station Handover
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing bandwidth and beamforming in heterogeneous networks, leading to suboptimal performance and resource utilization, particularly in 5G networks with diverse device capabilities and varying traffic loads.
Innovation Solution
Implementing bandwidth part (BWP) management and carrier aggregation techniques, along with advanced beam management protocols, to dynamically adapt to device capabilities and traffic conditions, optimizing resource allocation and improving communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If bandwidth part (BWP) management and carrier aggregation techniques are implemented to optimize resource allocation, then bandwidth utilization and communication efficiency are improved, but device complexity and network configuration complexity increase
Solution Approach 1:
The patent implements dynamic BWP switching mechanisms that allow the network to adaptively adjust bandwidth allocation based on real-time traffic conditions and device capabilities. The gNB can dynamically switch UEs between different BWPs and configure carrier aggregation states, enabling the system to optimize resource utilization without requiring static, complex pre-configuration for all possible scenarios.
Solution Approach 2:
The patent utilizes parameter-based BWP configuration where different BWPs are defined by specific parameters (bandwidth, subcarrier spacing, cyclic prefix type). The network can switch between BWPs by changing these parameters dynamically, allowing flexible resource allocation while maintaining a manageable configuration structure through standardized parameter sets.
2Productivity
If advanced beam management protocols are implemented to optimize beamforming, then data rates and network performance are improved, but processing complexity and computational requirements increase
Solution Approach 1:
The patent implements beam management procedures where the gNB performs preliminary beam sweeping and reference signal transmission before actual data transmission. By pre-establishing beam pairs and storing beam configuration information, the system reduces real-time processing complexity while maintaining high data rates through optimized beamforming.
Solution Approach 2:
The patent enables UEs to autonomously perform beam measurements and reporting based on configured parameters. The UE self-manages beam measurement, selects optimal beams, and reports feedback to the gNB, reducing the processing burden on the network while achieving optimal beamforming performance for high data rates.
Data Source
AI summary
A second base station sends, to a first base station, a first message comprising a parameter indicating that the second base station supports layer 1 and/or layer 2 (L1/L2)-based mobility. The second base station receives, from the first base station, a second message indicating to perform the L1/L2-based mobility for a wireless device.