Adaptive Spectrum Resource Allocation in Wireless Data Transmission
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Solution Overview
Problem
In wireless cellular communication systems, the limited availability of spectrum resources hinders efficient data transmission, particularly in utilizing non-grant spectrum resources to achieve higher data transmission rates.
Innovation Solution
A data transmission method and device that determine resource availability within predefined time windows using detection values and feedback information, allowing for adaptive resource allocation and power adjustment to optimize data transmission over both grant and non-grant spectrum resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If non-grant spectrum resources are utilized to achieve higher data transmission rates, then data transmission efficiency is improved, but resource availability and reliability deteriorate due to limited spectrum resources and interference
Solution Approach 1:
The system performs preliminary detection of non-grant spectrum resources within a first predefined time window before actual data transmission. This advance detection allows the first transmission node to identify available resources and plan transmission accordingly, improving reliability before utilizing the spectrum for high-rate data transmission
Solution Approach 2:
The second transmission node provides feedback information about the detected resource state to the first transmission node. This feedback mechanism enables the first node to make informed decisions about whether to transmit data on non-grant spectrum resources, balancing the trade-off between transmission efficiency and resource availability reliability
2Measurement precision
If detection is performed on non-grant spectrum resources, then resource allocation accuracy is improved, but time consumption increases due to the need for detection within predefined time windows
Solution Approach 1:
Detection of non-grant spectrum resources is performed in advance within a first predefined time window before the second predefined time window for data transmission. This preliminary detection ensures accurate resource identification without delaying the actual transmission process
Solution Approach 2:
The system uses predefined time windows that can be dynamically configured to balance detection accuracy and time consumption. By optimizing the duration and timing of detection windows, the system achieves sufficient resource allocation accuracy while minimizing time loss
3Productivity
If power adjustment is applied to transmit data on non-grant spectrum resources, then transmission efficiency is improved, but energy consumption increases
Solution Approach 1:
The system adjusts transmission power as a variable parameter based on detected resource conditions and feedback information. Power is optimized to achieve efficient data transmission on non-grant spectrum resources while consuming only the necessary energy, avoiding both under-transmission and excessive energy use
Data Source
AI summary
A data transmission method and device are described. The method includes: a first transmission node determines that a resource in a second predefined time window is available according to a detection value obtained by detection on a resource in a first predefined time window, and/or determines that the resource in the second predefined time window is available according to first feedback information or second feedback information from a second transmission node; and the first transmission node transmits data to the second transmission node by using the resource in the second predefined time window.