Communication Apparatus Mode Control for Throughput Stability
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Solution Overview
Problem
Wireless communication devices face challenges in maintaining necessary throughput when operating multiple communication modes concurrently, particularly due to restrictions imposed by the need to avoid radar wave interference in the 5-GHz band and limitations on the number of frequency bands usable.
Innovation Solution
A communication apparatus and method that controls the activation of communication modes based on the frequency band used, specifically avoiding the use of DFS bands in the 5-GHz band for P2P mode and prioritizing modes to ensure stable operation across multiple standards, allowing for concurrent use of wireless infrastructure, P2P, and BLE modes without impairing throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple communication modes (infrastructure mode, P2P mode, BLE mode) are executed concurrently, then communication versatility is improved, but throughput is degraded due to frequency band restrictions and radar interference avoidance requirements
Solution Approach 1:
The patent dynamically controls the execution state of different communication modes based on the frequency band being used. When operating in DFS bands (5.25-5.35 GHz, 5.47-5.725 GHz), the system automatically inhibits P2P mode and BLE mode to prevent throughput degradation, while allowing these modes in non-DFS bands (2.4 GHz, 5.15-5.25 GHz). This dynamic adaptation resolves the contradiction by adjusting mode availability according to operational conditions.
2Reliability
If DFS function is implemented to avoid radar interference in 5 GHz band, then reliability is improved, but communication availability is reduced due to channel interruption requirements
Solution Approach 1:
The patent segments the frequency band into DFS bands (5.25-5.35 GHz, 5.47-5.725 GHz) and non-DFS bands (2.4 GHz, 5.15-5.25 GHz), applying different communication mode strategies to each segment. In DFS bands, the system maintains reliability through radar detection but limits concurrent mode execution to essential infrastructure mode only. In non-DFS bands, full mode versatility is permitted. This segmentation resolves the contradiction by applying appropriate constraints only where necessary.
3Adaptability or versatility
If P2P mode is executed concurrently with infrastructure mode in DFS bands, then communication versatility is improved, but throughput is degraded due to frequency band restrictions
Solution Approach 1:
The patent changes the operational parameters of communication modes based on the frequency band parameter. In DFS bands, it modifies the execution state parameter of P2P mode and BLE mode from 'enabled' to 'inhibited' when infrastructure mode is active, while in non-DFS bands, all modes remain enabled. This parameter change strategy resolves the contradiction by adapting mode execution parameters to frequency band conditions.
Data Source
AI summary
A communication apparatus can execute a first communication mode for allowing wireless communication with an information processing apparatus via an external access point. Also, the communication apparatus can execute a second communication mode for allowing the communication apparatus to function as a master station without intervention of the external access point to perform wireless communication with the information processing apparatus serving as a slave station. Furthermore, the communication apparatus can execute a third communication mode of a standard different from standards of the first communication mode and the second communication mode. The communication apparatus controls not to execute communication in either the second communication mode or the third communication mode based on a frequency band used in the first communication mode.