Dynamic Paging Beacon Transmission for P2P Wireless Efficiency

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Solution Overview

Problem

Existing wireless communication systems, particularly those based on the IEEE 802.11 standard, face challenges in the setup and coordination of direct peer-to-peer communication between wireless stations without an intermediate access point, limiting efficiency and flexibility in data transmission.

Innovation Solution

Implementing a mechanism for wireless stations to transmit a paging beacon outside of a scheduled paging window using Neighbor Awareness Networking (NAN) protocol, allowing peer devices to establish a paged data link and manage data transmission through common resource blocks, enabling efficient data exchange without relying on an access point.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If wireless stations transmit paging beacons only within scheduled paging windows, then power consumption is reduced and interference is minimized, but data transmission efficiency deteriorates when data arrives outside these windows

Engineering Contradiction:

Improvedata transmission efficiencyVSAvoidpower consumption

Core Design Contradiction:

ProductivityVSUse of energy by moving object

Solution Approach 1:

The patent makes the paging beacon transmission dynamic by allowing stations to transmit beacons both within scheduled paging windows and outside them when data arrives. The transmission timing adapts based on data arrival conditions, transforming a static periodic transmission scheme into a dynamic one that responds to real-time data needs, thereby resolving the contradiction between transmission efficiency and power consumption.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the timing parameter of paging beacon transmission from fixed (only within scheduled windows) to variable (within windows or outside windows based on data arrival). This parameter change allows the system to optimize between power consumption and transmission efficiency by adjusting transmission behavior according to actual data conditions.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If wireless stations transmit paging beacons outside scheduled paging windows, then data transmission efficiency improves, but interference and power consumption increase

Engineering Contradiction:

Improvedata transmission efficiencyVSAvoidinterference

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a coordination mechanism where the receiving station sends a trigger frame to request data transmission, and the transmitting station responds with data frames. This intermediary trigger-based coordination allows out-of-window beacon transmission to occur only when necessary, reducing unnecessary interference while maintaining improved data transmission efficiency.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent uses preliminary action by having the receiving station send a trigger frame before data transmission begins. This preliminary trigger ensures that out-of-window beacon transmissions are coordinated and necessary, preventing random interference while enabling efficient data transfer when data arrives outside scheduled windows.

Inventive Principle:

Principle #10Preliminary action

3Adaptability or versatility

If wireless stations establish peer-to-peer communication without an access point, then network flexibility and autonomy improve, but setup complexity and coordination difficulty increase

Engineering Contradiction:

Improvenetwork flexibilityVSAvoidsetup coordination complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements self-service by enabling wireless stations to autonomously establish peer-to-peer communication without requiring an access point. Stations independently perform beacon transmission, data link establishment, and data transfer coordination, making the system self-sufficient and flexible while managing complexity through standardized protocols.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent applies universality by designing a standardized peer-to-peer communication framework that can be used across different scenarios and devices. The NAN protocol provides universal mechanisms for beacon transmission, data link setup, and data transfer that work consistently across various wireless stations, reducing setup complexity through standardized multi-functional procedures.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS10681759B2Paging schemes for peer-to-peer communications

Publication Date: 2020.06.09 APPLE INC

AI summary

One or more wireless stations may operate to configure direct communication with neighboring mobile stations, e.g., direct communication between the wireless stations without utilizing an intermediate access point. A mechanism for a wireless station to transmit a paging beacon outside of a paging window may include establishing a paged data link with a peer station, determining that one or more data frames associated with the paged data link are pending transmission, and transmitting a beacon to the peer station outside of a scheduled paging window of the paged data link. The beacon may include a paging attribute indicating there are pending data frames.