Wireless Communication Device Antenna Selection by Holding Position
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Solution Overview
Problem
Existing wireless communication devices are large in size and impose an excessive load on processing devices due to the need for circuits to detect and compare reception levels from multiple antennas.
Innovation Solution
A wireless communication device with multiple antennas that uses holding position specifying information to select an antenna positioned differently from the user's hold, eliminating the need for reception level detection and comparison circuits, thereby reducing device size and processing load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If reception level detection circuits and comparison circuits are provided to select the optimal antenna, then wireless communication quality is maintained, but the device size becomes relatively large
Solution Approach 1:
The patent extracts the antenna selection function from complex reception level detection and comparison circuits, replacing it with a simplified position-based selection mechanism. Instead of measuring and comparing signal strengths from multiple antennas, the system selects antennas based on predetermined position information, eliminating the need for complex detection circuits while maintaining communication reliability.
Solution Approach 2:
The system uses predetermined position information about antenna locations and user holding positions to automatically determine optimal antenna selection without requiring active detection or comparison operations. The selection is performed based on pre-stored position data, reducing the need for additional circuitry.
2Reliability
If reception level detection and comparison processing is performed by a processing device, then antenna selection is achieved, but the load on the processing device becomes excessively large
Solution Approach 1:
The patent performs preliminary action by pre-storing position information about antenna locations and user holding positions before actual antenna selection is needed. This allows the processing device to simply retrieve and compare predetermined position data rather than performing complex real-time signal analysis, significantly reducing processing load while maintaining selection accuracy.
3Reliability
If multiple antennas are provided at different positions to improve communication quality, then reliability is enhanced, but device complexity increases
Solution Approach 1:
The patent extracts the essential selection criterion from complex signal processing and retains only the position-based selection logic. By removing reception level detection and comparison operations, the system maintains multiple antennas for reliability while simplifying the selection mechanism to use only predetermined position information.
Data Source
AI summary
A wireless communication device 100 is a device which performs wireless communication. The wireless communication device 100 includes a plurality of antennas 101a, 101b, . . . provided at different positions; and an antenna selection section (antenna selection element) 102 which acquires holding position specifying information for specifying a holding position which is a position where a user holds the wireless communication device 100, and from among the plurality of antennas 101a, 101b, . . . , selects an antenna provided at a position which is different from the holding position specified by the acquired holding position specifying information. The wireless communication device 100 is adapted to perform wireless communication via the selected antenna.