BSSID Role Reassignment for Multi-BSSID Set Continuity

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

In wireless communications networks, the absence of a transmitted Basic Service Set Identifier (BSSID) can lead to a catastrophic collapse of the multi-BSSID set, as there are no beacon or probe responses transmitted, preventing traffic announcement and discovery by unassociated STAs, especially when the TxBSSID is turned off, removed, or disabled.

Innovation Solution

The technique allows for the reassignment of TxBSSID/nonTxBSSID roles, enabling a new BSSID to assume the role of TxBSSID, ensuring continuous operation of the MBSSID set by updating the roles and indices in beacon and probe response frames, thereby preventing the collapse of the network.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a TxBSSID is turned off, removed, or disabled to manage network resources, then network resource management is improved, but the multi-BSSID set collapses and service continuity deteriorates

Engineering Contradiction:

Improvenetwork resource managementVSAvoidservice continuity

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent changes the operational state parameter of BSSIDs within the multi-BSSID set. When the TxBSSID is disabled, the system dynamically changes the state of nonTxBSSIDs from passive to active, allowing them to assume the TxBSSID role and continue transmitting beacons and probe responses, thus maintaining service continuity while managing network resources

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent implements dynamic role assignment within the multi-BSSID set. The TxBSSID and nonTxBSSID roles are not fixed but can be dynamically switched based on operational needs. When the current TxBSSID is disabled, a nonTxBSSID dynamically transitions to become the new TxBSSID, ensuring continuous network operation and preventing catastrophic collapse

Inventive Principle:

Principle #15Dynamics

2Device complexity

If a single TxBSSID transmits all beacons and probe responses to simplify network structure, then network structure is simplified, but the system lacks redundancy and becomes vulnerable to failure

Engineering Contradiction:

Improvenetwork structureVSAvoidsystem redundancy

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent segments the beacon and probe response transmission function across multiple BSSIDs within the multi-BSSID set. Instead of relying on a single TxBSSID, the system divides the redundancy function among multiple nonTxBSSIDs, which can individually assume the TxBSSID role if needed, thus simplifying overall network structure while built-in redundancy

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent prepares backup TxBSSID candidates in advance by maintaining multiple nonTxBSSIDs in the multi-BSSID set. These nonTxBSSIDs serve as pre-positioned cushions that can immediately take over TxBSSID functions if the current TxBSSID fails, preventing network collapse before it occurs

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS20240073792A1Transmitted basic service set identifier reassignment

Publication Date: 2024.02.29 QUALCOMM INC

AI summary

Certain aspects of the present disclosure provide a method for wireless communications at an access point (AP) device, generally including generating a first frame that indicates updated roles associated with at least two basic service set IDs (BSSIDs) of a multi-BSSID set, wherein the updated roles relate to whether a BSSID is a transmitted BSSID (TxBSSID) or a nontransmitted BSSID (nonTxBSSID) and outputting the first frame for transmission.