Uplink Resource Block Coordination for Interference-Limited Cell Groups
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Solution Overview
Problem
Inefficient resource usage and reduced communication quality in 5G NR cellular networks due to uplink signal interference between user equipment and cellular networks, which compromises the network's promise of higher throughput and lower latency.
Innovation Solution
Implementing group-level resource block allocation and schedule coordination among neighboring base stations to minimize interference by monitoring interference parameters and coordinating resource block allocation in the frequency and time domains.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If group-level resource block allocation and schedule coordination are implemented among neighboring base stations, then uplink signal interference is minimized and communication quality is improved, but device complexity and network coordination overhead increase
Solution Approach 1:
The network is divided into groups of neighboring base stations that operate cooperatively. Each group manages its own resource block allocation and scheduling independently, segmenting the overall network coordination problem into smaller, manageable units. This reduces the complexity of network-wide coordination while still achieving interference mitigation through local cooperation.
Solution Approach 2:
Multiple neighboring base stations are merged into a coordinated group that shares resource block allocation decisions. By combining the scheduling functions of multiple base stations and enabling them to make joint decisions about resource allocation, the system achieves better interference management than individual base stations could accomplish alone.
2Productivity
If resource block allocation is coordinated in frequency and time domains among multiple base stations, then transmission capacity and system performance are enhanced, but resource usage control complexity increases
Solution Approach 1:
Resource block allocation is coordinated across multiple dimensions including frequency domain, time domain, and spatial domain (through base station grouping). By extending coordination from single-base-station time-frequency allocation to multi-base-station multi-dimensional allocation, the system achieves better spectrum utilization and transmission capacity while distributing the coordination complexity across multiple levels.
Data Source
AI summary
Technologies for resource coordination in a cellular network are described. One method includes: monitoring, by a first base station, a plurality of interference parameters associated with the first base station in the cellular network; determining that a first interference parameter of the plurality of interference parameters satisfies a threshold criterion, wherein the first interference parameter is specific to a first signal; sending, to a plurality of base stations in a group comprising the first base station, a request for information regarding the first signal; receiving, from one or more base stations of the plurality of base stations, the information regarding the first signal; based on the received information, coordinating with the one or more base stations by allocating at least part of a resource block with a schedule for transmitting the first signal; and send the first signal according to the allocation and the schedule.