Network Control Node Uplink Capacity Optimization
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Solution Overview
Problem
Wireless communication networks face underutilization of uplink capacity due to suboptimal operation, particularly in macro cells and small cells, where traffic-invariant coverage and emphasis on downlink optimization lead to inefficient use of resources, resulting in poor quality of service and network capacity utilization.
Innovation Solution
A method that collects operational information from base stations to adjust target Signal to Noise and Interference Ratio (SINR) parameters opportunistically, using 'water-filling' techniques to fill uplink capacity gaps while maintaining overall network capacity utilization, thereby enhancing uplink service quality without excessive resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If downlink optimization is emphasized, then downlink service quality is improved, but uplink capacity utilization deteriorates
Solution Approach 1:
The patent changes the SINR target parameter dynamically based on network conditions. By adjusting the SINR target parameter, the system optimizes uplink capacity utilization without compromising downlink service quality, resolving the contradiction between downlink optimization and uplink capacity utilization
Solution Approach 2:
The patent implements dynamic adjustment of operational parameters rather than static configuration. The SINR target is adjusted in real-time based on collected network information, enabling the system to adapt to changing conditions and simultaneously maintain downlink quality while improving uplink capacity utilization
2Area of stationary object
If traffic-invariant coverage is provided, then network coverage is maintained, but uplink service quality deteriorates
Solution Approach 1:
The patent transitions from static, traffic-invariant coverage to dynamic coverage adjustment. By continuously monitoring network conditions and adjusting SINR targets, the system maintains coverage area while improving uplink service quality through adaptive parameter changes
Solution Approach 2:
The patent modifies the SINR target parameter based on actual network conditions and traffic patterns. This parameter change enables the system to maintain coverage while optimizing uplink service quality, resolving the contradiction between coverage maintenance and service quality improvement
3Reliability
If target SINR is increased to improve uplink service, then uplink quality is improved, but network capacity utilization deteriorates
Solution Approach 1:
The patent dynamically adjusts the SINR target parameter based on collected network information and calculated capacity utilization. This conditional parameter adjustment improves uplink service quality only when it does not excessively increase network capacity utilization, resolving the contradiction between uplink quality and capacity utilization
Solution Approach 2:
The patent implements a feedback mechanism where network information is collected, capacity utilization is calculated, and SINR targets are adjusted accordingly. This closed-loop control ensures that uplink service quality improvement does not come at the cost of excessive network capacity utilization
Data Source
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AI summary
A method of controlling operation of a wireless communication network comprising a plurality of base stations, a computer program product and network control node operable to perform that method. The wireless communication network comprises a plurality of base stations, each operable to support a region of radio coverage to allow communication links to be established with user equipment within the network. The method comprises: collecting operational information relating to user equipment operating in the network from the plurality of base stations; determining, based on the collected operational information, an indication of said network capacity utilisation; calculating whether an operational parameter of one or more of the plurality of base stations may be adjusted to offer improved uplink service to the user equipment whilst maintaining said determined indication of network capacity utilisation, and, if so, instructing the adjustment of the operational parameter of one or more of the plurality of base stations. Aspects and embodiments described herein propose use of "water-filling" methods to vary target SINRs within a network, with the aim of opportunistically filling any uplink capacity gaps.