Relay Management Frames for Reliable Weak-Zone Connectivity

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Solution Overview

Problem

Existing wireless networks face challenges in establishing reliable relays for devices in weak or dead zones, leading to poor connectivity and inefficient data transmission.

Innovation Solution

Implementing methods for relay management that include receiving a relay support announcement, sending a relay request frame, and confirming relay formation to establish secure and efficient connections between a transmitter STA, relay STA, and destination STA using encapsulated data and management frames.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If relay stations are established to extend network coverage to weak zones, then connectivity is improved, but device complexity and protocol overhead increase

Engineering Contradiction:

Improveconnectivity in weak zonesVSAvoidrelay management complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces relay stations as intermediary devices that mediate communication between transmitter and destination stations in weak coverage zones. The relay support announcement mechanism acts as a standardized intermediary protocol that simplifies relay management by providing pre-defined frame structures and procedures, reducing the complexity burden despite adding relay functionality.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent segments the network into direct communication paths and relayed communication paths. By dividing the communication function into separate relay management frames and data frames, the system can handle relay operations independently without complicating the entire network protocol, thus managing complexity through functional segmentation.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If relay support announcement frames are transmitted to enable relay discovery, then relay establishment capability is improved, but network overhead increases

Engineering Contradiction:

Improverelay establishment capabilityVSAvoidnetwork overhead

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The relay support announcement frame is designed as a multi-functional element that serves both relay discovery and relay establishment purposes. By combining multiple functions into a single frame type, the patent reduces the total number of separate control frames needed, thereby reducing network overhead while maintaining versatile relay establishment capability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The announcement frame includes only the essential relay support information needed for basic relay establishment, avoiding excessive detail. This partial information approach provides sufficient functionality for relay operations without the overhead of complete device descriptions, achieving a balance between capability and overhead.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS20250219711A1Relay management

Publication Date: 2025.07.03 CISCO TECHNOLOGY INC

AI summary

Relay management and specifically to encapsulated management and data frames and methods to create and delete relays may be provided. Relay management can include receiving a relay support announcement from a Relay Station (rSTA), the relay support announcement identifying a Transmitter STA (tSTA) the rSTA can provide relay support for. A relay request frame can be sent to the rSTA, the relay request frame indicating to establish a relay with the tSTA. A relay formation confirmation frame can be received from the rSTA to establish the relay.