Radio Resource Power Control for Spatial Isolation Blocking
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Solution Overview
Problem
The issue of blocking interference due to insufficient spatial isolation between transmit and receive ends in spectrum deployment scenarios, leading to reduced signal-to-interference-plus-noise ratio and diminished spectrum spreading gain, is addressed by dynamically adjusting transmit power based on spatial isolation and power suppression degrees.
Innovation Solution
A method and apparatus for radio resource management that involves performing received power detection using a first bandwidth unit, determining spatial isolation, and adjusting transmit power to ensure the sum of received powers at the receive end does not exceed a blocking threshold, thereby eliminating interference and maximizing spectrum spreading gain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the transmit end reduces power based on theoretical constraints (worst-case scenario), then blocking interference at the receive end is eliminated, but the transmit power in the spread area greatly decreases, reducing the signal-to-interference-plus-noise ratio and spectrum spreading gain
Solution Approach 1:
The patent implements dynamic power adjustment by continuously detecting spatial isolation degrees and adapting transmit power accordingly, rather than using fixed worst-case power reduction. The system dynamically calculates optimal power levels based on real-time spatial isolation measurements, allowing power to be increased when isolation is sufficient and decreased when isolation is poor, thus resolving the contradiction between eliminating blocking interference and maintaining transmit power for spectrum spreading gain
Solution Approach 2:
The patent establishes a feedback mechanism where the receive end measures spatial isolation degree and feeds this information back to the transmit end. The transmit end then adjusts its power based on this feedback, creating a closed-loop control system. This feedback approach enables the system to adapt to actual deployment conditions rather than relying on theoretical worst-case assumptions, thereby maintaining both interference elimination and acceptable transmit power levels
2Area of stationary object
If spectrum spreading is applied to the transmit end, then the spectrum range is expanded, but the receive end cannot meet the ideal requirement for energy suppression on the spread area, causing uplink receiving sensitivity to deteriorate
Solution Approach 1:
The patent changes the parameter of spatial isolation degree as a variable factor rather than a fixed constraint. By measuring and utilizing actual spatial isolation degrees, the system can determine appropriate power levels that allow spectrum spreading while maintaining receiving sensitivity. This parameter change approach transforms the rigid trade-off into a flexible optimization problem where both spectrum range and receiving sensitivity can be satisfied under appropriate conditions
Data Source
AI summary
This application discloses a radio resource management method and apparatus, a storage medium, and a computer program. Received power detection is performed, by using a first bandwidth unit, in a downlink frequency range corresponding to a receive end, to obtain a received power corresponding to each of at least one first bandwidth unit. A spatial isolation degree between a transmit end and the receive end is obtained based on a system transmit power at the receive end and the received power corresponding to each of the at least one first bandwidth unit. A transmit power corresponding to at least one resource unit is obtained based on the spatial isolation degree and a power suppression degree that corresponds to the at least one resource unit, such that a sum of powers received by the receive end on all resource units is less than or equal to a blocking threshold.