Network Node Mobility State Communication Configuration
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Solution Overview
Problem
Current wireless communication technologies, such as LTE and NR, face challenges in adapting communication configurations to varying mobility states, leading to poor performance at high speeds due to reduced beam coherence and inefficient resource utilization at low speeds.
Innovation Solution
Implementing a method where network nodes determine their mobility state and select appropriate communication configurations from a set of predefined configurations based on that state, optimizing parameters like beam-sweep periodicity, RACH occasion frequency, and beam width to enhance communication reliability and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed communication configuration is used for all mobility states, then device complexity is reduced, but communication reliability deteriorates at high speeds due to reduced beam coherence
Solution Approach 1:
The patent implements dynamic communication configurations that automatically adapt to different mobility states. The network node determines the mobility state of the UE and selects appropriate communication configurations (e.g., beam-sweep periodicity, RACH occasion frequency, beam width) based on whether the UE is stationary, low-speed, medium-speed, or high-speed moving. This dynamic adaptation resolves the contradiction by maintaining communication reliability across varying speeds while managing complexity through automated state-based selection.
Solution Approach 2:
The patent changes key communication parameters based on mobility state detection. Specifically, it adjusts beam-sweep periodicity, random access channel (RACH) occasion frequency, and beam width according to the determined mobility state. These parameter changes enable the system to maintain optimal communication performance whether the UE is stationary or moving at high speed, resolving the reliability issue without requiring manual configuration management.
2Reliability
If communication configurations are optimized for high speeds with reduced beam coherence, then communication reliability improves at high speeds, but resource utilization efficiency deteriorates at low speeds
Solution Approach 1:
The patent applies different communication configuration qualities locally suited to each mobility state. For stationary or low-speed UEs, it uses configurations with longer beam-sweep periodicity and lower RACH occasion frequency to maximize resource efficiency. For high-speed UEs, it switches to configurations with shorter periodicity and higher frequency to ensure communication reliability. This local optimization resolves the contradiction by matching configuration quality to the specific mobility condition.
Solution Approach 2:
The system dynamically switches between resource-efficient configurations (for low speeds) and reliability-optimized configurations (for high speeds) based on real-time mobility state determination. The network node monitors UE mobility and automatically selects the appropriate configuration set, ensuring that resources are not wasted on excessive beam-sweeping for stationary UEs while maintaining reliable communication for high-speed UEs.
3Reliability
If beam-sweep periodicity is increased for high-speed mobility, then communication reliability improves under reduced beam coherence, but time resource consumption increases
Solution Approach 1:
The patent changes the beam-sweep periodicity parameter based on mobility state. For high-speed UEs experiencing reduced beam coherence, it decreases the beam-sweep periodicity (increases frequency) to maintain link reliability. For stationary or low-speed UEs, it increases the periodicity to reduce time resource consumption. This conditional parameter adjustment resolves the contradiction by optimizing the trade-off between reliability and time efficiency for each mobility scenario.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may determine a mobility state. The network node may determine a communication configuration, selected from a plurality of communication configurations associated with a plurality of mobility states, based at least in part on the mobility state. The network node may perform a communication procedure using the selected communication configuration. Numerous other aspects are provided.