Radio Equipment Controller Uplink Power Recognition
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Solution Overview
Problem
Radio equipment controllers in radio base stations cannot recognize the received electric power of uplink signals, preventing them from providing Enhanced Uplink services and performing call processing and maintenance control based on total traffic volume.
Innovation Solution
Incorporating a measurement unit in the radio equipment to measure the received signal strength of uplink signals and transmit IQ data and control information using frames with a dedicated region for signal strength information, allowing the radio equipment controller to extract and utilize this data for accurate power recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If IQ data is transmitted to the radio equipment controller, then demodulation information is provided, but the received electric power itself cannot be recognized
Solution Approach 1:
The patent embeds the received electric power information within the existing frame structure by nesting it in a specific region of the control information field. This allows the power information to be transmitted alongside IQ data without creating a separate communication channel or significantly increasing overall frame complexity.
Solution Approach 2:
The patent introduces a measurement unit as an intermediary component that specifically measures the received electric power of uplink signals. This measurement unit acts as a mediator between the signal reception process and the control controller, providing the missing power information through a dedicated measurement and transmission path.
2Measurement precision
If received signal strength measurement is added to the radio equipment, then power recognition becomes possible, but device complexity increases
Solution Approach 1:
The measurement unit is designed with multi-functionality, serving both to measure received signal strength for power recognition and to integrate with the existing demodulation and transmission processes. This universal component performs multiple functions within a single unit, reducing the need for additional separate components and minimizing overall device complexity.
Solution Approach 2:
The patent combines the measurement unit with the existing radio equipment architecture, merging the signal strength measurement function into the current signal processing chain. By combining measurement, demodulation, and transmission functions in an integrated manner, the patent avoids adding separate independent subsystems that would increase complexity.
Data Source
AI summary
A radio equipment in a radio base station is configured to measure received signal strength of an uplink signal transmitted by a mobile station and includes a TRX function unit configured to transmit IQ data and control information to a radio equipment controller by using a frame including an IQ data region for mapping the IQ data and a control region for mapping the control information, the IQ data being obtained by subjecting the uplink signal to demodulation processing (orthogonal demodulation processing), and the TRX function unit is configured to map information indicating the received signal strength (RSSI) measured by the measurement unit to a fixed region in the control region.