NR Signal Measurement Using Envelope Detection for Low-Power Reliability
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Solution Overview
Problem
Existing wireless communication systems face challenges in meeting increased measurement requirements for power saving and reliability, particularly in New Radio (NR) systems, where traditional measurement methods consume excessive power and are not reliable due to the non-periodic transmission of wake-up signals.
Innovation Solution
A wireless communication method involving the measurement of a first signal and a second signal, where both signals carry information through signal amplitude or use envelope detection, ensuring reliable measurement results while reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional measurement methods are used in NR systems, then measurement reliability can be maintained, but power consumption increases excessively
Solution Approach 1:
The patent segments the measurement process into two distinct parts: (1) measuring a first signal that carries information through signal amplitude to obtain basic measurement results, and (2) measuring a second signal using envelope detection to obtain additional measurement results. This segmentation allows the system to distribute measurement tasks across different signal types with different detection complexities, thereby reducing overall power consumption while maintaining measurement reliability.
Solution Approach 2:
The patent changes the detection parameter from traditional complex signal processing to envelope detection for the second signal. By using envelope detection which operates on signal amplitude characteristics rather than full complex signal processing, the system reduces the computational complexity and power consumption of measurements while still obtaining reliable measurement results for mobility management and handover decisions.
2Use of energy by moving object
If wake-up signals are transmitted non-periodically, then power saving can be achieved, but measurement reliability deteriorates
Solution Approach 1:
The patent applies preliminary action by measuring the first signal (which carries information through signal amplitude) to obtain basic measurement results before needing to make handover or mobility decisions. This preliminary measurement provides advance information about signal conditions, allowing the system to prepare for potential handover scenarios without requiring continuous or periodic wake-up signal transmissions, thus maintaining power saving while improving measurement reliability.
Solution Approach 2:
The patent introduces an intermediary measurement approach using two different signal types with different detection methods. The first signal serves as an intermediary that provides basic measurement information with lower power consumption, while the second signal (measured using envelope detection) provides additional confirmation. This intermediary measurement strategy ensures reliable measurements even when wake-up signals are transmitted non-periodically.
3Measurement precision
If complex signal structures are used for measurement, then measurement quality can be ensured, but power consumption increases
Solution Approach 1:
The patent applies partial action by using envelope detection for the second signal instead of full complex signal processing. Envelope detection extracts only the amplitude characteristics of the signal, which is sufficient for many measurement purposes such as signal strength measurement and handover decisions. This partial measurement approach consumes significantly less power while still providing adequate measurement quality for the intended applications.
Solution Approach 2:
The patent changes the measurement parameter from full complex signal characteristics to signal amplitude characteristics. By focusing measurement efforts on amplitude-based parameters rather than complete complex signal analysis, the system reduces computational complexity and power consumption while maintaining sufficient measurement quality for mobility management, handover decisions, and signal quality assessment in NR systems.
Data Source
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AI summary
Provided in the present application are wireless communication methods and devices. A first communication device can obtain a target measurement result by measuring a first signal and a second signal, that is, by measuring the first signal and the second signal, the measurement result can be reliably acquired so as to ensure measurement quality. In addition, the first signal and the second signal have simple structures, such that more power-efficient measurement is realized. A wireless communication method includes: obtaining, by a first communication device, a target measurement result by measuring a first signal and a second signal, where the first signal is a signal carrying information through signal amplitude, or the first signal is a signal received using envelope detection, and/or the second signal is a signal carrying information through signal amplitude, or the second signal is a signal received using envelope detection.