5G Beam Management Power Saving via Signal Quality Thresholds
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Beam management in 5G wireless communication systems consumes a significant amount of power, particularly in high-frequency bands like FR2, where beam measurements are frequent and resource-intensive, leading to increased power consumption.
Innovation Solution
The processing circuitry in electronic devices reduces beam measurements by determining signal quality through reference signals and implementing power-saving conditions, such as reducing measurements for stable signal qualities, skipping periodic measurements, and increasing measurement periods, thereby conserving power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam measurements are performed frequently for all beam pairs to maintain reliable wireless communication links, then connection reliability is improved, but power consumption increases
Solution Approach 1:
The patent applies partial action by performing beam measurements selectively rather than for all beam pairs. When signal quality satisfies the power saving condition (remains above threshold for N consecutive times), measurements are performed only for the serving beam pair instead of all beam pairs, reducing power consumption while maintaining connection reliability through targeted measurements
2Measurement precision
If beam measurements are performed for all beam pairs including candidate beam pairs, then beam management accuracy is improved, but measurement complexity and power consumption increase
Solution Approach 1:
The patent reduces measurement complexity by performing measurements only for a subset of beam pairs based on signal quality conditions. When the power saving condition is met, measurements are limited to the serving beam pair, avoiding exhaustive measurements of all candidate beam pairs while maintaining sufficient beam management accuracy
Solution Approach 2:
The patent segments the beam measurement process into different modes: when signal quality satisfies the power saving condition, only serving beam pair measurements are performed; when it does not satisfy the condition, measurements for all beam pairs are performed. This segmentation allows the system to adapt measurement complexity to actual channel conditions
3Speed
If the measurement period is shortened to respond quickly to channel changes, then responsiveness is improved, but power consumption increases
Solution Approach 1:
The patent dynamically adjusts the measurement period based on signal quality conditions. When the power saving condition is satisfied, a longer measurement period is used to reduce power consumption; when the condition is not satisfied, the measurement period is shortened to improve responsiveness. This dynamic adjustment optimizes both power consumption and responsiveness based on actual channel conditions
Data Source
AI summary
Aspects of the disclosure provide an electronic device including processing circuitry and a method for beam management (BM) with power saving. The processing circuitry can receive a reference signal from a network via a serving beam pair used for downlink (DL) transmission between the network and an electronic device. The serving beam pair can include a serving transmission (Tx) beam transmitted from the network and a serving reception (Rx) beam received by the electronic device. The processing circuitry can determine a signal quality of the reference signal. When the signal quality is determined to satisfy a power saving condition, the processing circuitry can reduce beam measurements in the BM for beam pairs including Tx beams transmitted from the network and respective Rx beams received by the electronic device. The beam pairs can include the serving beam pair and one or more candidate beam pairs.