Portable Internet Analyzer Handover Test Function
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Solution Overview
Problem
Current methods for performing handover tests in portable Internet systems require either assistance from multiple base stations, which is impractical for maintenance, or the use of two portable Internet analyzers, leading to high equipment costs and complex synchronization and control.
Innovation Solution
A portable Internet analyzer with a handover test function, featuring a transmission unit for encoding and synthesizing signals, a reception unit for decoding UL signals, a switching unit for selective frame section switching, and a central control unit for generating and analyzing MAC messages, allowing for effective handover testing using a single analyzer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If two portable Internet analyzers are used for handover testing, then testing accuracy is improved, but equipment construction costs increase and synchronization and control become complex
Solution Approach 1:
The patent combines the functions of two separate portable Internet analyzers into a single analyzer by integrating both serving base station and target base station simulation capabilities within one device. The transmission unit can selectively transmit signals from either base station, and the reception unit can receive signals from the PSS, eliminating the need for multiple analyzers while maintaining testing accuracy.
Solution Approach 2:
The single portable Internet analyzer is designed with multi-functionality to perform both serving base station and target base station simulations simultaneously. The central control unit coordinates both transmission units to emulate different base stations, allowing one device to replace two analyzers for comprehensive handover testing.
2Measurement precision
If two portable Internet analyzers are used for handover testing, then testing accuracy is improved, but synchronization and control become complex
Solution Approach 1:
The patent merges the synchronization and control functions into a single central control unit within one analyzer. This central control unit coordinates the transmission units for both serving and target base stations, managing timing and signal synchronization internally, thereby eliminating the complex synchronization issues that would arise from coordinating two separate analyzers.
3Reliability
If multiple base stations are used for handover testing, then handover performance is improved, but maintenance and management become impractical
Solution Approach 1:
The single portable Internet analyzer performs self-service by internally generating and managing both serving base station and target base station signals. The central control unit automatically coordinates the transmission units, eliminating the need for external base station infrastructure and simplifying maintenance and management while maintaining reliable handover performance testing.
Data Source
AI summary
Disclosed herein is a portable Internet analyzer (PIA) having a handover test function. The portable Internet analyzer includes a transmission unit, a reception unit, a switching unit, and a central control unit. The transmission unit encodes the various DownLink signals of a serving and/or target Base Station (stBS) using a preamble index, synthesizes the encoded signals, and sends the synthesized signals to a Portable Subscriber Station (PSS). The reception unit receives various UpLink (UL) signals from the PSS, and decodes the UL signals using the cell Parameters of the stBS. The switching unit selectively switches the transmission unit and the reception unit to the PSS. The central control unit generates various Media Access Control (MAC) messages to be sent to the PSS through the transmission unit in association with the handover test, analyzes handover test-related MAC messages received through the reception unit, and controls switching operation of the switching unit.