Transmitting VAP Selection for MBSSID Beacon Frame Optimization
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Solution Overview
Problem
Conventional methods for selecting a transmitting Virtual Access Point (VAP) in a Multiple Basic Service Set Identifier (MBSSID) set do not consider the inheritance relationship between transmitting and non-transmitting VAPs, leading to oversized beacon frames, especially in Enhanced MBSSID Advertisement (EMA) scenarios.
Innovation Solution
The method involves actively selecting a transmitting VAP based on context information, such as the size of the beacon frame, inheritance relationships, and client requirements, to dynamically generate a beacon frame that includes identifiers for both the transmitting and non-transmitting VAPs, optimizing the frame size by using offsets and inheritance of Information Elements (IEs).
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a single Beacon frame is used to advertise information for multiple VAPs in an MBSSID set, then the beacon frame size becomes excessively large, but using multiple beacon frames would increase transmission overhead and complexity
Solution Approach 1:
The patent segments the beacon frame information by identifying a transmitting VAP and non-transmitting VAPs within the MBSSID set. The transmitting VAP's information is included fully in the beacon frame, while non-transmitting VAP information is omitted or reduced, thereby segmenting the information content to reduce overall frame size while maintaining functionality.
Solution Approach 2:
Instead of including all VAP information in the beacon frame as traditionally done, the patent inverts the approach by selectively including only transmitting VAP information and using alternative mechanisms (such as VAP configuration templates or separate indication frames) for non-transmitting VAPs, thus reducing beacon frame size.
2Loss of substance
If conventional VAP selection methods are used without considering inheritance relationships, then the beacon frame includes redundant information, but implementing inheritance relationships requires additional processing complexity
Solution Approach 1:
The patent applies preliminary action by pre-establishing VAP configuration templates that define inheritance relationships before beacon frame generation. Non-transmitting VAPs are configured to inherit from transmitting VAPs using these templates, allowing the system to eliminate redundant information in advance without adding complex processing during beacon frame creation.
Solution Approach 2:
The patent uses copying by creating VAP configuration templates that can be replicated and applied to multiple non-transmitting VAPs. Instead of individually configuring each VAP, the system copies the transmitting VAP's configuration template to non-transmitting VAPs, eliminating redundant information while simplifying the configuration process.
Data Source
AI summary
Implementations of the present disclosure relate to selecting a transmitting virtual access point (VAP) for a MBSSID set. A method comprises selecting a VAP from a set of VAPs as a transmitting VAP based on context information about the set of VAPs, at least one of the set of VAPs other than the transmitting VAP being determined as at least one non-transmitting VAP The method also comprises generating a beacon frame for the set of VAPs by including an identifier of the transmitting VAP in a header part of the beacon frame and including at least one identifier of the at least one non-transmitting VAP in a payload part of the beacon frame. A generated beacon frame is broadcasted. In this way, a transmitting VAP of a set of VAPs is no longer determined by default, but can be selected for different cases.