Antenna Switching and Power Control for Wireless Devices
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Solution Overview
Problem
Existing wireless communication technologies do not effectively specify an antenna for transmitting data at a lower power when multiple antennas are available, leading to increased power consumption and communication traffic.
Innovation Solution
A wireless communication device with a first and second antenna, a transmitter, a receiver, an antenna controller, and a transmission controller that switches between antennas and adjusts transmission power to identify the antenna requiring the lowest power for data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an antenna is selected from multiple antennas for data transmission, then communication area and interference cancellation are improved, but power consumption increases and transmission power cannot be optimized
Solution Approach 1:
The patent changes the parameter of transmission power dynamically based on antenna switching. When the antenna controller switches between antennas, the transmission controller adjusts transmission power levels to find the optimal power setting that maintains communication reliability while minimizing power consumption. This resolves the contradiction by making transmission power a variable parameter rather than a fixed value.
Solution Approach 2:
The patent introduces dynamic control where the antenna controller and transmission controller work together to adaptively select antennas and adjust transmission power in real-time. This dynamic system allows the communication device to maintain reliable communication through antenna diversity while optimizing power consumption by selecting the most efficient antenna-power combination.
2Reliability
If transmission power is increased to ensure data transmission, then communication reliability is improved, but interference to other networks increases
Solution Approach 1:
The patent adjusts transmission power as a controllable parameter based on antenna switching events. By dynamically modifying transmission power levels rather than using high fixed power, the system achieves reliable data transmission while minimizing interference to other networks. The transmission controller modulates power to the minimum necessary level for successful communication.
3Ease of operation
If conventional transmission power determination methods are used, then power control is simplified, but the ability to specify optimal antenna for low-power transmission is lost
Solution Approach 1:
The patent combines the antenna controller and transmission controller into an integrated system. The antenna controller switches between antennas while the transmission controller simultaneously adjusts transmission power levels. This merged control system automatically determines optimal antenna-power combinations without requiring complex manual configuration, thus maintaining ease of operation while achieving power optimization.
Data Source
AI summary
A wireless communication device has an aim of specifying, when transmitting data to another communication device, an antenna among antennas that can transmit data at a low transmission power. The wireless communication device switches between a first antenna and a second antenna upon transmission of a request signal to the other communication device, and increases or decreases transmission power for transmitting the request signal when switching between the first antenna and the second antenna.