Wireless Device Access Point Role Determination
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Solution Overview
Problem
In IEEE 802.11 infrastructure mode, determining which device will act as the access point during connection is unclear, as existing methods do not provide a clear distinction between access points and stations, leading to ambiguity in device roles during negotiation.
Innovation Solution
A wireless communication device and system that includes function information transmission, reception, comparison, and determination units to assess and determine which device should act as the access point based on function weights and priorities, such as connection status, battery life, communication speed, and available frequency channels, enabling clear role assignment during connection negotiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequency switching is used for notification transmission, then the ability to establish connection is improved, but the complexity of determining device roles and coordinating communication increases
Solution Approach 1:
The patent applies preliminary action by having devices transmit capability information before actual data communication begins. Each device sends its supported frequency channels and other capabilities in advance, allowing role determination to be made before the data transmission phase starts, thus reducing the complexity of coordinating communication during the actual data transfer.
2Ease of operation
If beacon transmission is used for finding access points, then the ease of finding communication counterparts is improved, but the ambiguity of determining which device should act as access point remains
Solution Approach 1:
The patent implements feedback by having devices exchange capability information and then determine roles based on this exchanged information. The determination of which device becomes access point is based on feedback from both devices' capability transmissions, ensuring that role assignment is informed by both parties' capabilities rather than being ambiguous.
3Adaptability or versatility
If negotiation is performed after connection, then the flexibility of adapting to different device capabilities is improved, but the time required for connection establishment increases
Solution Approach 1:
The patent applies preliminary action by performing capability information exchange and role determination before the actual data communication begins. This preliminary negotiation phase allows the system to adapt to different device capabilities while minimizing the time required for connection establishment, as the critical decisions are made in advance rather than during data transmission.
Data Source
AI summary
Provided is a wireless communication device which includes a function information transmitting unit for transmitting, via a wireless communication network, function information relating to a function of the wireless communication device, a function information receiving unit for receiving function information transmitted from another device, a function information comparison unit for comparing the function information of the wireless communication device and the function information received from such other device, and a function determination unit for determining which of the wireless communication device and such other device is to play a function of an access point, based on a result of the comparison by the function information comparison unit.