Wireless Transceiver Self-Configuration for TR CSI Accuracy
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Solution Overview
Problem
In wireless communication systems employing Time-Reversal (TR) technology, the use of multiple antennas for obtaining channel status information (CSI) leads to decreased throughput and interference with other devices, making it challenging to obtain sufficient CSI without affecting current wireless transmission.
Innovation Solution
A wireless communication method and system with an automatic self-configuration mechanism that involves scanning for channel status, selecting channels with lower loadings and fewer Basic Service Sets (BSS) to minimize interference, and sending sounding signals to determine CSI, ensuring that the data amount exceeds a threshold for accurate TR transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a large number of antennas are used for TR transmission to increase CSI accuracy, then measurement precision is improved, but productivity decreases due to reduced throughput and interference with other wireless devices
Solution Approach 1:
The system dynamically adjusts the number of antennas used for TR transmission based on channel conditions and interference levels. The base station can adaptively select between using all available antennas for high-precision CSI measurement or reducing the antenna count to maintain throughput when interference is detected or channel conditions are poor.
Solution Approach 2:
The patent changes the parameter of antenna quantity from a fixed value to a variable that can be adjusted based on system conditions. By modifying the number of antennas participating in TR transmission, the system can optimize the trade-off between CSI measurement precision and overall network throughput.
2Measurement precision
If a large number of antennas are used for TR transmission to increase CSI accuracy, then measurement precision is improved, but object-generated harmful factors increase due to interference with other wireless devices
Solution Approach 1:
The system dynamically adjusts the number of antennas used for TR transmission based on channel conditions and interference levels. The base station can adaptively select between using all available antennas for high-precision CSI measurement or reducing the antenna count to maintain throughput when interference is detected or channel conditions are poor.
Solution Approach 2:
The patent converts the potential harm of interference into a beneficial control mechanism by using interference detection as a trigger to adjust antenna quantity. When interference is detected, the system reduces antenna usage, which inadvertently benefits other wireless devices while still maintaining adequate CSI accuracy for TR transmission.
3Object-generated harmful factors
If channel scanning and automatic self-configuration is performed to reduce interference, then object-generated harmful factors are reduced, but loss of time increases due to the scanning process
Solution Approach 1:
The system performs channel scanning and automatic self-configuration in advance before TR transmission begins. By pre-configuring the optimal antenna quantity and selecting appropriate channels during idle periods or initial connection phases, the system avoids interference issues during actual data transmission without significantly impacting overall communication time.
Solution Approach 2:
The base station automatically performs channel scanning and configures transmission parameters without requiring manual intervention or extensive negotiation with other devices. This self-service approach minimizes the time overhead by eliminating interactive configuration steps and making autonomous decisions based on scanned channel conditions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for coexistence with existing wireless communication systems, enhancing the accuracy of TR transmission while maintaining excellent communication quality by dynamically adjusting channel settings to avoid interference.
Implementation Method 1
Time-Reversal (TR) is also a kind of wireless signal technology which requires CSI. It mainly observes the distribution of the energy of the transmitting terminal in time and space. When one transceiver (e.g., transceiver A) sends a signal to another transceiver (e.g., transceiver B), the transceiver B first sends a probe signal, like an impulse signal, to the transceiver A, the step is called the channel probing phase. Next, the transceiver A time-reversally processes the received signal and transmits it back to the transceiver B
Data Source
AI summary
Wireless communication system and method having automatic self-configuration mechanism are provided. The method including configuring a first transceiver to perform a wireless network scan process to obtain a channel status report by executing a wireless network scan program, configuring the first transceiver to select one of the plurality of channels with the channel loading lower than a channel loading threshold, configuring the first transceiver to send a sounding signal to a second transceiver through the selected one of the plurality of channels, configuring the second transceiver to obtain channel status information (CSI) associated to the selected channel from the sounding signal; and configuring the second transceiver to determine whether a total data amount of the CSI is larger than a data amount threshold.