Uplink Beam Transformation Adaptation for Coverage Mismatch
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Solution Overview
Problem
Advanced antenna systems face challenges in maintaining optimal uplink coverage when cell shaping is applied, as traditional methods do not adapt uplink beam transformations to match the modified downlink coverage, leading to suboptimal network performance and reduced throughput.
Innovation Solution
A method for adjusting uplink beam transformations in cellular networks to match uplink and downlink coverage by evaluating mismatches and applying new transformations from a set of predetermined options or computing new ones to minimize discrepancies, ensuring that uplink coverage aligns with downlink coverage and geographic distribution of traffic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If cell shaping is applied to modify downlink coverage, then downlink coverage efficiency is improved, but uplink coverage becomes mismatched and suboptimal
Solution Approach 1:
The patent applies dynamics by making the uplink beam transformation configurable and adaptable based on downlink cell shaping operations. The system dynamically adjusts uplink beamforming parameters to match the modified downlink coverage pattern, transforming the static uplink configuration into a dynamic one that responds to downlink changes. This resolves the contradiction by enabling real-time coordination between uplink and downlink coverage.
Solution Approach 2:
The patent implements feedback mechanisms where the network node monitors the relationship between downlink cell shaping operations and uplink coverage performance. Based on this feedback, the system determines whether uplink beam transformations need adjustment and applies appropriate corrections. This closed-loop feedback approach ensures uplink coverage continuously matches downlink coverage, resolving the mismatch problem.
2Productivity
If traditional cell shaping is used, then downlink coverage is optimized, but network throughput is reduced due to uplink-downlink coverage mismatch
Solution Approach 1:
The system transforms static uplink beamforming into a dynamic configuration that adapts to downlink cell shaping operations. By enabling real-time adjustment of uplink beam transformations based on downlink coverage modifications, the system maintains optimal uplink-downlink coverage matching, thereby preserving network throughput that would otherwise be reduced by coverage mismatches.
Solution Approach 2:
The patent changes the parameters of uplink beam transformations to align with modified downlink coverage patterns. When cell shaping alters downlink coverage characteristics, the system adjusts uplink beamforming parameters accordingly, ensuring that both directions maintain consistent coverage boundaries and optimize overall network throughput.
3Device complexity
If uplink beam transformations are not adapted, then device complexity is reduced, but network performance deteriorates due to coverage mismatch
Solution Approach 1:
The patent introduces dynamic adaptability to uplink beam transformations without significantly increasing device complexity. The network node performs the assessment and determination of whether transformations need adjustment, keeping the complexity management centralized. This approach maintains relatively simple device structures while achieving improved network performance through coordinated uplink-downlink coverage.
Data Source
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AI summary
Systems and methods relating to adjusting uplink coverage in a cellular communications network are disclosed. In some embodiments, a method of operation of a network node to adjust uplink coverage for one or more cells in a cellular communications network comprises determining that there is a need to adjust uplink beam transformations for one or more cells of a plurality of cells in a cellular communications network. For each cell of the one or more cells, the uplink beam transformation for the cell is a transformation of received uplink signals for the cell from an antenna domain to a beam domain. The method further comprises, upon determining that there is a need to adjust the uplink beam transformations for the one or more cells, determining new uplink beam transformations for the one or more cells and applying the new uplink beam transformations for the one or more cells.