Base Station Spectrum Detection via Auxiliary Device
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In modern communication systems, especially in LTE networks, there is a challenge in determining whether user equipment is interfered by other communications devices when using unlicensed spectra, due to shared usage among different radio access technologies, leading to potential interference and inefficient spectrum utilization.
Innovation Solution
A method and apparatus where a base station sends spectrum detection information to an auxiliary device to determine if a spectrum is occupied, allowing the base station to assess interference and adjust transmission power accordingly, thereby enabling effective spectrum sharing between LTE and other systems like WiFi.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If LTE system applies to unlicensed spectrum to improve spectrum utilization, then available spectrum bandwidth is improved, but interference from other communications systems cannot be determined
Solution Approach 1:
The patent introduces an auxiliary device as an intermediary between the base station and the unlicensed spectrum environment. This auxiliary device performs spectrum detection on behalf of the base station, allowing the LTE system to utilize unlicensed spectrum while obtaining interference information through the intermediary's detection capabilities.
Solution Approach 2:
The base station sends spectrum detection information to the auxiliary device in advance before actual data transmission. The auxiliary device performs detection ahead of time and reports spectrum status information, enabling the base station to make informed decisions about spectrum usage and power adjustment before interference becomes problematic.
2Reliability
If base station increases transmission power to improve signal quality, then communication reliability is improved, but interference to other communications systems increases
Solution Approach 1:
The patent establishes a feedback loop where the auxiliary device continuously monitors spectrum occupancy and reports status information to the base station. Based on this feedback, the base station dynamically adjusts transmission power - increasing it when the spectrum is clear to improve reliability, and decreasing it when occupancy is detected to reduce interference to other systems.
Solution Approach 2:
The transmission power is made dynamic rather than static. The base station adjusts power levels in real-time based on spectrum occupancy conditions reported by the auxiliary device, allowing the system to optimize between reliability and interference mitigation depending on current environmental conditions.
3Measurement precision
If base station performs spectrum detection directly to determine interference, then detection accuracy is improved, but system complexity increases
Solution Approach 1:
The patent extracts the spectrum detection function from the base station and assigns it to a separate auxiliary device. This allows the base station to maintain simpler architecture while still obtaining accurate spectrum detection results from the specialized auxiliary device that is dedicated to monitoring tasks.
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
Embodiments of the present invention provide a spectrum detection method and apparatus, and a base station. According to the method, in the embodiments, a first base station sends spectrum detection information to an auxiliary device, where the spectrum detection information is used to instruct the auxiliary device to detect whether a first spectrum is occupied; then, the first base station receives first spectrum status information sent by the auxiliary device, so that the first base station determines whether the first spectrum in an area in which the auxiliary device is located is occupied. Therefore, it is implemented that the first base station may determine whether user equipment is interfered by another communications system device in a process in which the user equipment uses the first spectrum, so as to implement sharing of a spectrum by the user equipment with the another communications system device.