Edge UE BLER Adjustment Using Neighbor Cell RB Load
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Solution Overview
Problem
Users far from the base station experience poor network quality due to strong interference from surrounding cells, leading to a bottleneck in network communication and user experience.
Innovation Solution
Adaptively adjust the block error rate (BLER) of edge user equipment (UE) by considering the load condition of interference neighbor cells, specifically increasing BLER when the resource block (RB) utilization ratio of these cells is below a threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If users are located far from the base station, then the coverage area is extended, but the received signal strength decreases and interference from surrounding cells increases
Solution Approach 1:
The patent implements dynamic adjustment of BLER thresholds based on real-time neighbor cell load conditions. When neighbor cells have low load (RB utilization below threshold), the system dynamically increases the BLER threshold for edge UEs, allowing more aggressive resource allocation and higher throughput while maintaining acceptable error rates. This dynamic adaptation resolves the contradiction by adjusting system parameters in real-time based on network conditions.
Solution Approach 2:
The system changes the BLER threshold parameter adaptively based on neighbor cell resource block utilization. By monitoring RB usage in neighboring cells and adjusting the BLER threshold accordingly (higher when neighbor load is low, lower when neighbor load is high), the system optimizes edge UE performance while preventing excessive interference to neighboring cells, thus resolving the coverage vs. reliability trade-off.
2Productivity
If the BLER of edge UE is increased to improve throughput, then the user experience is improved, but the error rate increases which may affect reliability
Solution Approach 1:
The patent dynamically adjusts the BLER threshold parameter based on neighbor cell load conditions. When neighbor cells have low RB utilization, the system increases the BLER threshold, permitting higher block error rates and enabling more aggressive resource allocation for edge UEs, thereby improving throughput. When neighbor load is high, the threshold is reduced to maintain reliability. This parameter adaptation resolves the contradiction between throughput and reliability.
Solution Approach 2:
The system implements dynamic BLER threshold adjustment rather than using a fixed threshold. The threshold adapts in real-time based on monitored neighbor cell resource block utilization, allowing the system to optimize the trade-off between throughput and reliability according to current network conditions, thus resolving the static contradiction.
3Productivity
If resource allocation is optimized for edge users, then their throughput is improved, but the complexity of resource management increases
Solution Approach 1:
The patent applies differentiated resource allocation strategies based on UE location. Edge UEs receive special treatment with dynamically adjusted BLER thresholds based on neighbor cell load, while non-edge UEs use standard allocation procedures. This localized optimization improves edge UE throughput without requiring complete redesign of the resource management system, thus managing complexity effectively.
Solution Approach 2:
The system optimizes resource allocation for edge users by dynamically changing the BLER threshold parameter based on neighbor cell conditions, rather than implementing complex multi-dimensional resource scheduling algorithms. This parameter-based approach achieves improved edge throughput with relatively simple implementation, resolving the productivity vs. complexity trade-off.
Data Source
AI summary
A method for adjusting a block error rate includes: when a block error rate (BLER) of an edge user equipment (UE) is a preset value, acquiring a resource block (RB) utilization ratio of each interference neighbor cell of at least one interference neighbor cell of the edge UE; determining whether an RB utilization ratio of each target interference neighbor cell is less than a first preset threshold of the each target interference neighbor cell, where the at least one target interference neighbor cell is N interference neighbor cells in the at least one interference neighbor cell that satisfy a preset condition for interfering with the edge UE, and N is a positive integer; and when the RB utilization ratio of the each target interference neighbor cell is less than the first preset threshold of the each target interference neighbor cell, increasing the BLER of the edge UE.