WiGig Action Frame Transmission via Temporary Beacon

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Solution Overview

Problem

WiGig communication protocols face challenges in transmitting action frames and managing the medium for group formation, as they rely on beacon schedules, which are not feasible without a beacon or schedule information, hindering the application of Wi-Fi Direct to WiGig communication.

Innovation Solution

A wireless communication apparatus and method that includes a searching section for finding peers, a medium management section to transmit a temporary signal with schedule information, and a group formation section to transmit an action frame for forming a group with the peer after medium management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If Wi-Fi Direct is applied to WiGig communication without beacon transmission, then direct communication between devices is enabled, but medium management and action frame transmission cannot be performed

Engineering Contradiction:
Improveadaptability of Wi-Fi Direct to WiGig communicationVSAvoidmedium management capability
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent applies preliminary action by having one device transmit beacon frames before group formation to establish medium management schedules. This preliminary beacon transmission sets up the temporal structure needed for subsequent action frame exchanges, resolving the contradiction by preparing the medium management framework in advance rather than attempting direct communication without it.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent uses beacon frames as an intermediary mechanism to enable action frame transmission. The beacon frames serve as a mediating structure that establishes the medium access rules, allowing devices to subsequently exchange action frames for group formation. This intermediary beacon mechanism bridges the gap between direct communication goals and medium management requirements.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If beacon frames are transmitted for medium management, then action frame transmission becomes possible, but communication protocol complexity increases

Engineering Contradiction:
Improveaction frame transmission capabilityVSAvoidcommunication protocol complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent segments the communication process into distinct phases: beacon transmission phase for medium management setup, followed by action frame exchange phase for group formation. This segmentation allows beacon frames to be used only when necessary for establishing medium rules, rather than continuously, thereby reducing overall protocol complexity while maintaining action frame transmission capability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements dynamic beacon transmission where devices transmit beacons only when needed to establish or re-establish medium management, rather than continuously. This dynamic approach allows the protocol to adapt to current communication needs, using beacon frames selectively to enable action frame transmission only when medium management is required, thus balancing capability with complexity.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS9930512B2Wireless communications device, wireless communications method, and wireless communications control program
Publication Date: 2018.03.27 PANASONIC HOLDINGS CORP
  • US9930512B2 patent drawing
  • US9930512B2 patent drawing
  • US9930512B2 patent drawing

AI summary

The present disclosure provides such wireless communication apparatuses that when the wireless communication apparatuses perform direct communication using WiGig, one of the wireless communication apparatuses can transmit an action frame. Wireless communication apparatus 100 is a wireless communication apparatus that performs communication using WiGig and that includes: device searching section 142 that searches for other wireless communication apparatuses using a search signal; medium management section 143 that transmits, when a communication peer of wireless communication apparatus 100 is designated from among the found other wireless communication apparatuses, a temporary beacon including medium schedule information; and group formation section 144 that transmits an action frame to form a group with the designated other wireless communication apparatus after transmission of the temporary beacon.