Multi-Antenna Measurement Reporting for Reliable Handover
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Solution Overview
Problem
In electronic devices with multiple antennas, performance imbalance can lead to deteriorating communication quality and radio link failures due to decreased signal transmission performance, causing improper handover and signal quality degradation.
Innovation Solution
The electronic device includes a first and second antenna, a communication circuit, and a communication processor that identifies and transmits a measurement report based on the quality of signals received through these antennas, ensuring compliance with designated conditions for optimal handover.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic device determines measurement report transmission based on diversity reception antenna quality, then power consumption is reduced and simple measurement is achieved, but communication quality deteriorates and handover fails when transmission antenna performance decreases
Solution Approach 1:
The patent dynamically switches between two measurement modes: using diversity reception antenna quality when transmission antenna performance is normal, and using transmission antenna quality when performance degradation is detected. This dynamic adaptation resolves the contradiction by adjusting measurement complexity based on actual communication conditions to maintain handover reliability.
Solution Approach 2:
The patent changes the measurement parameter from diversity reception antenna quality to transmission antenna quality when performance degradation is detected. This parameter switching enables accurate reflection of actual transmission conditions, ensuring reliable handover decisions while avoiding unnecessary complex measurements during normal operation.
2Measurement precision
If the electronic device uses transmission antenna for measurement, then accurate transmission quality assessment is achieved, but power consumption increases and measurement complexity increases
Solution Approach 1:
The patent dynamically selects the measurement antenna based on transmission antenna performance status. During normal operation, it uses the low-power diversity reception antenna for measurement. When degradation is detected, it switches to the transmission antenna for accurate measurement, thus balancing power consumption and measurement precision adaptively.
Solution Approach 2:
The patent performs preliminary detection of transmission antenna performance using reference signals before deciding whether to switch measurement modes. This preliminary action enables early detection of degradation, allowing the system to switch to accurate transmission antenna measurement only when necessary, thereby minimizing overall power consumption while maintaining measurement precision when needed.
3Reliability
If handover is delayed due to improper measurement, then false handover is avoided, but communication quality deteriorates and radio link failure occurs
Solution Approach 1:
The patent performs preliminary detection of transmission antenna performance degradation using reference signals and predetermined thresholds before handover decisions are made. This early detection mechanism ensures that accurate transmission antenna measurement is activated in time, preventing both false handovers and delayed handovers, thus maintaining handover accuracy and timing.
Solution Approach 2:
The patent implements a feedback mechanism where transmission antenna performance is continuously monitored and used to adjust measurement report transmission decisions. This feedback loop ensures that handover timing is optimized by activating accurate measurement only when degradation is detected, preventing false handovers while avoiding delays, thus maintaining both handover accuracy and timing.
Data Source
AI summary
An electronic device may include: a first antenna configured to transmit a signal or receive a signal; a second antenna configured to receive the signal; a communication circuit connected to the first antenna and the second antenna, and configured to receive data from or transmit data to a network via a first node; and a communication processor, wherein the communication processor may receive a measurement object including information related to a second node adjacent to the first node from the network. The communication processor may identify a first quality of the signal received through the first antenna and a second quality of the signal received through the second antenna. The communication processor may identify whether the first quality satisfies a report condition included in the measurement object, based on that the electronic device satisfies a designated condition. The communication processor may be configured to transmit a measurement report including the first quality to the network, based on that the first quality satisfies the report condition.