Shared Spectrum Resource Allocation for LTE Coexistence
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge of coexistence between LTE systems and other systems, such as Wi-Fi, on shared spectrum resources has not been effectively addressed, leading to issues with data transmission and resource sharing fairness.
Innovation Solution
A method and device that allocate dedicated and contention resources within shared spectrum resources, allowing LTE systems to acquire and transmit data using dedicated and contention resources, with dynamic adjustment of resource ratios and priorities based on service loads and occupation times to ensure fair coexistence and resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If LTE system shares spectrum resources with other systems (e.g., Wi-Fi), then spectrum utilization efficiency is improved, but resource sharing fairness and system coexistence become problematic
Solution Approach 1:
The shared spectrum resources are segmented into dedicated resources and contention resources. Dedicated resources are allocated to specific systems (e.g., LTE) to ensure reliable operation, while contention resources are available for competitive access by multiple systems. This segmentation resolves the contradiction by guaranteeing minimum resource allocation for coexistence while enabling efficient shared utilization through contention access.
2Reliability
If dedicated resources are allocated to LTE system, then data transmission reliability is improved, but resource sharing flexibility deteriorates
Solution Approach 1:
The allocation ratio between dedicated resources and contention resources is dynamically adjustable based on system conditions, service requirements, and traffic loads. This allows the system to adapt resource distribution in real-time, maintaining reliability through dedicated resources while preserving flexibility through dynamic reconfiguration of the resource allocation structure.
3Productivity
If contention resources are increased for multiple systems, then resource sharing efficiency is improved, but access conflict and transmission reliability worsen
Solution Approach 1:
Different quality levels of resource access are provided to different systems or service types. High-priority services or systems with stringent reliability requirements can access dedicated resources with guaranteed quality, while lower-priority traffic utilizes contention resources. This local differentiation of access quality resolves the contradiction by allowing efficient shared access while protecting critical transmissions.
Data Source
AI summary
Provided are a data transmission method and device, and a spectrum resource sharing method and device. According to the data transmission method, a first system acquires, from shared spectrum resources, a dedicated resource of the first system and/or a contention resource obtained by the first system based on contention; and the first system transmits data by using the dedicated resource and/or the contention resource.