Spectrum Resource Determining for LTE-NR Sharing
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Solution Overview
Problem
The increasing number of terminals in 5G communication networks strains spectrum resources, necessitating efficient spectrum sharing methods to enhance utilization and capacity without increasing cell deployment costs.
Innovation Solution
A spectrum resource determining method and apparatus that enable spectrum sharing between multiple LTE cells and one NR cell by determining non-overlapping spectrum resources within a shared frequency band, allowing for increased utilization and capacity without the need for additional NR cell deployments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple NR cells are deployed to serve increasing terminals, then network capacity is improved, but deployment cost increases
Solution Approach 1:
The patent merges multiple first cells (LTE cells) with one second cell (NR cell) to share a common frequency band. Instead of deploying multiple separate NR cells, the system combines resources from multiple LTE cells with a single NR cell, achieving spectrum sharing that improves network capacity while avoiding the cost of deploying multiple NR cells.
Solution Approach 2:
The frequency band is designed to serve multiple functions simultaneously - it can be used by the second cell (NR cell) and multiple first cells (LTE cells) through spectrum sharing. This multi-functionality allows a single frequency band to support both LTE and NR operations, increasing network capacity without requiring separate dedicated bands for each cell type.
2Reliability
If spectrum resources are allocated exclusively to NR cells, then 5G service quality is improved, but spectrum utilization efficiency decreases
Solution Approach 1:
Instead of allocating the entire frequency band exclusively to the second cell (NR cell), the system allocates only the necessary portion to the second cell while allowing first cells to share the remaining spectrum resources. This partial allocation approach ensures that NR service quality is maintained while significantly improving overall spectrum utilization efficiency by involving multiple LTE cells in the shared spectrum.
Data Source
AI summary
A spectrum resource determining method includes obtaining sharing information. The sharing information indicates that N first cells and one second cell share a first frequency band, a coverage area of each first cell among the N first cells overlaps a coverage area of the second cell, and N is an integer greater than 1. The method also includes determining a spectrum resource of each first cell among the N first cells in the first frequency band and a first spectrum resource of the second cell. The first spectrum resource is located in the first frequency band, and the first spectrum resource does not overlap the spectrum resource of each first cell among the N first cells in the first frequency band.