Cellular Measurement Bandwidth Configuration for Mobility
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Solution Overview
Problem
In cellular radio systems, existing technologies face challenges in ensuring consistent measurement bandwidth across cells with different transmission bandwidths, which affects mobility performance and requires frequent adjustments due to changes in network configuration or cell planning.
Innovation Solution
A method and system that configure measurement bandwidths for base stations to signal consistent bandwidths to user equipment for downlink neighbor cell measurements, using a centralized or distributed approach to adjust bandwidth based on various factors such as cell planning, propagation environment, and radio resource management strategies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different transmission bandwidths are used in neighboring cells on the same carrier frequency, then network flexibility and adaptability are improved, but measurement consistency and mobility performance deteriorate
Solution Approach 1:
The patent applies local quality by configuring different measurement bandwidths for different cells based on their specific transmission bandwidths. Each cell's measurement bandwidth is locally optimized to match its transmission characteristics, allowing neighboring cells to operate with different bandwidths while maintaining accurate measurements for each cell individually.
Solution Approach 2:
The patent implements dynamics by introducing dynamic measurement bandwidth configuration that can be adjusted based on network conditions, cell planning changes, and mobility requirements. The measurement bandwidth is not fixed but can be modified through network signaling to adapt to changing network configurations while maintaining measurement consistency.
2Stability of the object's composition
If measurement bandwidth is fixed regardless of network configuration changes, then system stability is improved, but adaptability to network changes and cell planning modifications deteriorates
Solution Approach 1:
The patent transforms the static measurement bandwidth configuration into a dynamic one that can adapt to network changes. The measurement bandwidth is configured based on current network conditions and can be updated through signaling when cell planning changes or network configuration is modified, providing both stability during normal operation and adaptability when changes occur.
Solution Approach 2:
The patent implements feedback mechanisms where the network monitors configuration changes and cell planning modifications, then adjusts measurement bandwidth configurations accordingly. This feedback loop ensures that measurement bandwidth remains appropriate for current network conditions while maintaining system stability through controlled adjustments rather than arbitrary changes.
3Measurement precision
If measurement bandwidth is increased to improve measurement accuracy, then measurement precision is improved, but resource consumption and system complexity increases
Solution Approach 1:
The patent applies local quality by configuring measurement bandwidth specifically for each cell based on its transmission bandwidth and measurement requirements. Instead of using a uniformly high measurement bandwidth across all cells, each cell receives an appropriately sized measurement bandwidth that matches its specific needs, achieving accurate measurements while minimizing overall system complexity and resource consumption.
Data Source
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AI summary
In a cellular radio system measurement bandwidth for a plurality of base stations belonging to a cellular radio system is performed by configuring the base stations to signal the measurement bandwidth to user equipments connected to the cellular radio system for performing downlink neighbor cell measurements over the signaled measurement bandwidth in the user equipment by first receiving a set of information. The received information is used for configuring the measurement bandwidth using the received set of information and the configured measurement bandwidth is signaled to the base stations.