Wireless Device Dual Mode Switching for Network Stability
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Solution Overview
Problem
Existing wireless LAN systems face challenges in maintaining stable communications due to the need for proper selection and switching between base station and terminal modes in radio apparatuses, which are not adequately addressed in current configurations.
Innovation Solution
A radio apparatus is designed with a communication unit that can select between base station and terminal modes and a control unit that manages these modes, including receiving instructions for mode switching, ensuring stable communication by automatically adjusting modes based on the presence of other radio apparatuses in the network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a radio apparatus is configured to support both base station mode and terminal mode, then the adaptability of the apparatus is improved, but the device complexity increases
Solution Approach 1:
The radio apparatus is designed to perform both base station functions and terminal functions using the same hardware components. The communication unit can operate in base station mode to multiple-access multiple terminals or in terminal mode to connect to another base station, making the apparatus universal and adaptable to different network roles without requiring separate dedicated hardware for each mode.
Solution Approach 2:
The apparatus employs dynamic mode switching capability where the communication unit can change its operational mode between base station and terminal based on network conditions and received instructions. This dynamic reconfiguration allows the same hardware to adapt its function in real-time, resolving the contradiction between versatility and complexity by using software-controlled mode transition rather than fixed hardware configurations.
2Reliability
If automatic mode switching is implemented to maintain stable communications, then the reliability of communication is improved, but the control complexity increases
Solution Approach 1:
The control unit implements automatic mode switching based on feedback from the communication unit about detected radio apparatuses. When the communication unit detects another radio apparatus in base station mode, it provides feedback to the control unit, which then automatically switches the apparatus to terminal mode. This feedback mechanism ensures communication stability by preventing conflicts while using a relatively simple control structure that responds to detected conditions rather than requiring complex predictive algorithms.
Solution Approach 2:
The radio apparatus performs self-configuration by automatically detecting the presence of other base station apparatuses and switching its own mode accordingly without requiring manual intervention. The control unit monitors communication conditions and autonomously decides when to switch between base station and terminal modes, reducing the burden on external configuration while maintaining simple control logic based on straightforward detection rules.
3Ease of operation
If the radio apparatus switches modes based on detected base station presence, then the ease of operation is improved, but the response time delay increases
Solution Approach 1:
The apparatus continuously scans for and detects base station apparatuses in advance before mode switching becomes necessary. By maintaining ongoing detection of the wireless environment, the control unit has ahead-of-time information about base station presence, allowing it to switch modes proactively before communication conflicts arise, thereby reducing the effective delay while maintaining automatic operation.
Solution Approach 2:
When mode switching is determined to be necessary based on detected base station presence, the control unit executes the mode transition rapidly by directly reconfiguring the communication unit without unnecessary intermediate steps. The switching process is streamlined to minimize the time the apparatus spends in an indeterminate state, rushing through the transition to restore stable communication as quickly as possible.
Data Source
AI summary
A data processing section selects either base station mode or terminal mode and executes communication. A control section controls operations relating to the base station mode and the terminal mode. A receiving section receives an instruction to switch to the base station mode from other wireless device set in the base station mode, in the case where communication is set in the terminal mode. An AP switching section switches to the base station mode in accordance with the instruction. An instructing section instructs other wireless devices set in the terminal mode to switch to the base station mode, after a predetermined period is passed from the time when the mode is switched to the base station mode. An STA switching section switches to the terminal mode after giving the instruction.