Wireless Direction-of-Arrival Association with Source Address

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Wireless communication systems face challenges in dynamically determining the direction-of-arrival of incoming wireless transmissions and associating this information with the source address of the transmitting device, which affects the ability to efficiently direct outgoing transmissions and enhance data transmission rates and interference immunity.

Innovation Solution

A wireless communication system that uses a plurality of antennas and a direction-of-arrival detector to determine the direction-of-arrival of incoming transmissions, decodes the source address, and detects time proximity between these events to associate the direction-of-arrival with the source address, enabling precise directioning of outgoing transmissions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If beam-forming communication systems use a plurality of antennas to direct wireless transmissions, then antenna gain and interference immunity are improved, but the complexity of determining and associating direction-of-arrival with source address increases

Engineering Contradiction:

Improveinterference immunityVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system performs preliminary action by detecting time proximity between the first event (direction-of-arrival determination) and the second event (source address decoding) to pre-associate directional information with source addresses before outgoing transmissions are generated. This preliminary association simplifies subsequent beam-forming operations by having directional mapping information ready in advance.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system introduces an intermediary mechanism (time proximity detection) that bridges the direction-of-arrival detector and the source address decoder. By detecting whether events occur in temporal proximity, the system indirectly associates directional information with source addresses without requiring direct complex interaction between the two functions.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If the system dynamically determines direction-of-arrival for each incoming transmission, then data transmission rates are enhanced, but the processing time and computational load increase

Engineering Contradiction:

Improvedata transmission rateVSAvoidprocessing time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The system applies partial action by not fully processing every incoming transmission with complete direction-of-arrival analysis. Instead, it uses time proximity detection as a filter to identify which transmissions require full directional processing, thereby reducing overall computational load while maintaining high data transmission rates for prioritized signals.

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The system performs preliminary time proximity detection before committing to full direction-of-arrival processing. This preliminary check allows the system to quickly identify relevant transmissions that need enhanced processing, avoiding unnecessary computational overhead for transmissions that don't require directional association.

Inventive Principle:

Principle #10Preliminary action

3Measurement precision

If the system associates direction-of-arrival with source address through time proximity detection, then outgoing transmissions can be directed accurately, but the difficulty of detecting and measuring increases

Engineering Contradiction:

Improvedirectional accuracyVSAvoidevent correlation difficulty

Core Design Contradiction:

Measurement precisionVSDifficulty of detecting and measuring

Solution Approach 1:

The system uses time proximity detection as an intermediary measure to indirectly associate direction-of-arrival with source address. Rather than directly measuring the complex relationship between directional data and address data, the system measures the simpler temporal relationship between events, making the association process more tractable while maintaining directional accuracy.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system replaces direct mechanical or logical correlation mechanisms with a temporal measurement approach. By substituting complex direct association logic with time proximity detection, the system simplifies the measurement process while achieving the same goal of accurate directional mapping to source addresses.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS9215622B1Method and systems for associating wireless transmission with directions-of-arrival thereof

Publication Date: 2015.12.15 GO NET SYST

AI summary

Various methods and systems for: (i) associating direction-of-arrival of a wireless transmission with an address of an originator of the wireless transmission, (ii) associating directions of incoming transmissions with directions of outgoing transmissions in a wireless communication network, (iii) associating between data from a direction-of-arrival-detector and data from a receiver operating separately, and (iv) associating a relative direction (bearing) of a wireless communication device with its Media-Access-Control (MAC) address.