Smallcell UE Identification via Signal Status Analysis
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Solution Overview
Problem
Smallcells, such as picocells and femtocells, face challenges in identifying primary users within their coverage area, leading to suboptimal transmitting power settings due to varying deployment environments and lack of closed subscriber group settings, which are costly and difficult to implement.
Innovation Solution
A smallcell with a receive module to acquire signal status from UEs and an identification module to select target UEs based on signal status, such as path loss, signal quality, or signal strength, allowing for optimized power adjustments without the need for high-cost CSG settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a smallcell is deployed without CSG settings to reduce cost and deployment difficulty, then the deployment cost and complexity are reduced, but the smallcell cannot identify its primary users and optimize transmitting power
Solution Approach 1:
The smallcell autonomously identifies target UEs by measuring signal status parameters (path loss, signal quality, signal strength) without requiring external CSG configuration or operator intervention. The system serves itself by automatically analyzing received signals and determining which UEs are primary users based on predefined criteria, eliminating the need for complex access management systems
Solution Approach 2:
The invention changes the operational parameters of the smallcell by dynamically adjusting transmitting power based on identified target UEs. Instead of using fixed power levels, the system modifies power parameters in real-time according to the signal status and identification results, enabling optimization of network quality of service for primary users
2Measurement precision
If CSG settings are implemented to identify primary users, then user identification accuracy is improved, but the deployment complexity and cost increase
Solution Approach 1:
The invention extracts the essential function of user identification from the complex CSG access management system. Instead of implementing the entire CSG framework with its associated complexity, the patent isolates and implements only the core capability of identifying primary users through signal status analysis, removing unnecessary complexity while retaining the essential function
Solution Approach 2:
The invention replaces expensive, complex CSG infrastructure with a simple, low-cost signal analysis mechanism. The system uses basic signal measurements (path loss, quality, strength) that are already available in standard cellular operations, rather than requiring dedicated CSG configuration systems, achieving the same identification goal at minimal cost
Data Source
AI summary
A smallcell and an operating method thereof are provided. The operating method of the small cell includes the following steps: a signal status is acquired from a set of user equipments (UEs) in the coverage area of the smallcell; at least one target UE is selected from the set of UEs according to the signal status.