Network State Indication Using Bidirectional Signal Feedback
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Solution Overview
Problem
Existing electronic devices inaccurately reflect network communication states due to RSSI indications that only consider signal reception strength, failing to account for the actual communication environment, particularly when signal transmission strength differs from reception strength.
Innovation Solution
An electronic device is equipped with a communication circuit to transmit specified packets, receive feedback information on signal strength, determine network communication states, and display indicators based on both received and transmitted signal strengths, utilizing CSI feedback to adjust the displayed communication state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If RSSI indication is used to reflect signal strength, then the electronic device can display communication quality, but the indication does not accurately reflect the real communication environment when transmission strength differs from reception strength
Solution Approach 1:
The patent implements a feedback mechanism where the electronic device sends a probe request to the access point and receives a probe response containing RSSI information. This feedback loop allows the device to obtain transmission signal strength data from the access point, complementing the reception signal strength data already available, thereby achieving accurate bidirectional communication state assessment
Solution Approach 2:
The access point acts as an intermediary that provides transmission signal strength information to the electronic device through the probe response. This intermediary mechanism enables the electronic device to access information about its own transmission quality that would otherwise be unavailable, resolving the information asymmetry between transmission and reception measurements
2Device complexity
If the electronic device has fewer antennas and lower transmission power compared to the access point, then the device structure is simpler, but the signal strength received by the access point is weaker than the signal received by the device
Solution Approach 1:
The probe request-response mechanism provides feedback about the transmission signal strength from the electronic device to the access point and back. This allows the device to understand how its transmitted signals are received, enabling accurate communication state indication despite having fewer antennas and lower transmission power than the access point
3Device complexity
If only received signal strength is considered for RSSI indication, then the measurement process is simple, but the indication fails to reflect the actual communication environment in long-distance or NLOS scenarios
Solution Approach 1:
The bidirectional measurement approach using probe requests and responses provides feedback about both transmission and reception signal strengths. This dual-perspective measurement ensures reliable communication state indication in challenging scenarios such as long-distance or non-line-of-sight conditions where asymmetry between transmission and reception is pronounced
Solution Approach 2:
The patent changes the measurement parameters from unidirectional (reception only) to bidirectional (transmission and reception). By measuring and comparing both directions of signal strength, the system achieves more reliable communication state indication that accounts for environmental factors affecting signal propagation
Data Source
AI summary
According to various embodiments of the present disclosure, an electronic device comprises: a display, a communication circuit, and a memory which stores commands, wherein the communication circuit is configured to: transmit a designated packet to an external electronic device through a designated network; receive feedback information, including the strength of a signal received from the electronic device, from the external electronic device in response to the transmission of the designated packet; determine the communication state of the designated network based on the received feedback information; and display, on the display, an indicator indicating the communication state based on the determined communication state of the designated network.