Wireless Link Mode Switching for Interference and Throughput
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Solution Overview
Problem
In multi-link wireless communication, the efficiency of data transmission and reception can be compromised due to restrictions in operation modes, such as the Non-Simultaneous Transmit and Receive (NSTR) mode, which limits simultaneous transmission/reception, and the Simultaneous Transmit and Receive (STR) mode, which may experience interference between links, affecting throughput.
Innovation Solution
A wireless communication apparatus that dynamically switches between operation modes based on the type of application started, allowing simultaneous transmission and reception in one link while preventing interference by using multiple frequency bands, thereby optimizing communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If NSTR mode is used to prevent interference between links, then link isolation is improved, but communication efficiency deteriorates due to restrictions on data transmission/reception timings
Solution Approach 1:
The patent dynamically switches between STR and NSTR operation modes based on the type of application being executed. The determination unit identifies whether the running application is a video stream application or other types, and the control unit adjusts the operation mode accordingly - using STR mode for video stream applications that can tolerate some interference but benefit from simultaneous transmission/reception, and NSTR mode for other applications where interference prevention is more critical. This dynamic adaptation resolves the contradiction by making the system flexible rather than fixed in one mode.
2Productivity
If STR mode is used to enable simultaneous transmission and reception, then communication efficiency is improved, but interference between links occurs affecting throughput
Solution Approach 1:
The patent changes the operational parameters (operation mode) based on the application type. When a video stream application is detected, the system switches to STR mode to maximize communication efficiency for real-time video data. For other applications, it switches to NSTR mode to prevent interference. This parameter change approach allows the system to optimize for different workload characteristics, resolving the contradiction between efficiency and interference prevention.
3Device complexity
If fixed operation mode is used to simplify system design, then device complexity is reduced, but adaptability to different application scenarios deteriorates
Solution Approach 1:
The patent implements a self-service mechanism where the determination unit automatically identifies the running application type and the control unit autonomously selects the appropriate operation mode without user intervention. This self-service approach maintains relatively simple device complexity while achieving high adaptability to different application scenarios. The system serves itself by making intelligent decisions based on application characteristics, resolving the contradiction between simplicity and adaptability.
Data Source
AI summary
A wireless communication apparatus comprises: a communication unit configured to, in a case where a plurality of wireless links are established with another wireless communication apparatus, perform communication while switching an operation mode between a first operation mode in which while a packet is being transmitted to the other wireless communication apparatus via a first link of the plurality of wireless links, a packet can be received from the other wireless communication apparatus via a second link different from the first link, and a second operation mode in which while the packet is being transmitted in the first link, the packet is not received via the second link; and a control unit configured to control switching of the operation mode in accordance with a type of an application started up in the wireless communication apparatus.