Wireless Spectrum Sharing via Dynamic Resource Segmentation
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Solution Overview
Problem
Inter-system spectrum sharing between different radio access technologies faces challenges due to inter-system interference, which deteriorates user experience and hinders efficient spectrum resource utilization.
Innovation Solution
A radio resource sharing method that involves a network control device obtaining network parameters to configure spectrum sharing manners between communications systems, including support for carrier aggregation and cross-carrier scheduling, to optimize spectrum allocation and minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If spectrum resources are shared between different radio access technology systems, then spectrum resource utilization is improved, but inter-system interference increases and user experience deteriorates
Solution Approach 1:
The patent segments spectrum resources into shared spectrum resources and dedicated spectrum resources. The shared spectrum resources are further divided into multiple resource blocks that can be dynamically allocated. This segmentation allows different systems to share portions of the spectrum while maintaining dedicated portions for each system, thereby improving overall utilization while controlling interference through proper resource isolation and management
Solution Approach 2:
The patent implements dynamic spectrum allocation where the network device dynamically determines the quantity of shared spectrum resources to allocate based on real-time network status, terminal capabilities, and traffic demands. The allocation is adjusted through signaling messages that provide dynamic indication information, allowing the system to adapt to changing conditions and optimize the balance between resource utilization and interference management
2Productivity
If spectrum resources are allocated dynamically based on network status, then spectrum utilization efficiency is improved, but system complexity increases
Solution Approach 1:
The patent introduces a network device as an intermediary that centralizes the spectrum resource allocation function. This network device receives information about terminal capabilities, determines appropriate shared spectrum resource allocations, and sends signaling messages to base stations. By concentrating the complex decision-making logic in a dedicated intermediary component, the system achieves dynamic spectrum allocation while managing complexity through centralized control rather than distributed complexity across multiple nodes
Solution Approach 2:
The patent utilizes parameter changes in the form of signaling messages that carry dynamic indication information about spectrum resource allocation. The network device changes key parameters such as the quantity of shared spectrum resources, resource block assignments, and allocation patterns based on network status. These parameter changes enable flexible and efficient spectrum utilization without requiring fundamental changes to the system architecture, thereby managing complexity through configurable parameters
Data Source
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AI summary
According to a radio resource sharing method and a device that are provided in embodiments of the present invention, first, a network control device obtains a network parameter of a first communications system, and configures a spectrum sharing manner between the first communications system and a second communications system according to the network parameter; and next, sends a spectrum resource allocation message to a base station in the second communications system. The spectrum resource allocation message includes the determined spectrum sharing manner and information about a spectrum resource allocated to the second communications system. In this way, inter-system spectrum sharing can be implemented in different network statuses.