Hybrid Power Control for Wireless Nodes
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Solution Overview
Problem
Existing power control methods in wireless communications networks, such as MR-based and AMR codec mode signaling, are inefficient in managing transmission power, leading to high usage of full power and inadequate spectrum efficiency, especially in GSM networks.
Innovation Solution
A method where a first node determines transmission power for a second node based on both Measurement Report (MR) and AMR codec mode signaling, using different calculations depending on the availability of MR, to provide a balanced and quick power control mechanism that optimizes spectrum efficiency and reduces interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If MR-based power control is used, then power control accuracy is improved, but response time increases due to long reporting periods
Solution Approach 1:
The patent combines MR-based power control (providing accurate long-term power control) with AMR codec mode signaling (providing fast short-term power control adjustments) into a unified hybrid power control mechanism. This merging allows the system to leverage both the accuracy of MR-based control and the speed of AMR-based control, resolving the contradiction between measurement precision and response time.
Solution Approach 2:
The patent implements dynamic switching between different power control mechanisms based on current network conditions and available information. The system dynamically adjusts the weighting and contribution of MR-based control versus AMR-based control, allowing it to adaptively optimize the balance between accuracy and response time according to varying operational requirements.
2Reliability
If full transmission power is used, then communication reliability is improved, but spectrum efficiency deteriorates due to unnecessary power consumption
Solution Approach 1:
The patent dynamically adjusts transmission power parameters based on real-time channel conditions, MR measurements, and AMR codec mode indications. By continuously optimizing the transmission power level rather than maintaining fixed full power operation, the system maintains communication reliability when needed while reducing power consumption and improving spectrum efficiency during periods of good channel conditions.
Solution Approach 2:
The patent utilizes feedback mechanisms through MR measurements and AMR codec mode signaling to continuously monitor communication quality and adjust transmission power accordingly. This closed-loop feedback control ensures that full power is only used when necessary for maintaining reliability, while allowing power reduction when channel conditions permit, thereby improving spectrum efficiency.
3Reliability
If high transmission power is used, then signal quality is improved, but radiated interference increases affecting other carriers
Solution Approach 1:
The patent dynamically adjusts transmission power parameters based on MR measurements and AMR codec mode indications to maintain minimum necessary signal quality while minimizing excess power transmission. By optimizing power levels in real-time rather than using fixed high power settings, the system maintains signal quality for reliable communication while reducing radiated interference to other carriers and improving overall network spectral efficiency.
Data Source
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AI summary
Method by a first node (210) of controlling power of a second node (220). The first node (210) determines whether a measurement report, MR, has been received from a third node (230). The MR comprises a first type of information, related to a channel (280) between the third and second nodes during a time period. When the MR has been received, the first node (210) determines a power for the second node (220) based on a first type and a second type of calculation. The first type is based on the received MR. The second type is based on a second type of information related to the channel (280) during a shorter time period. When the MR has not been received, the first node (210) determines the power based on the second type of calculation. The first node (210) configures the second node (220) to use the determined power.