WLAN Access Point Pre-caching via Cloud Identity

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Solution Overview

Problem

Latency in accessing online content on wireless local area networks (WLANs) is a significant issue due to cache storage limitations and the difficulty in predicting which content to pre-cache, resulting in minimal impact from cache hit rates.

Innovation Solution

The use of cloud-based identities to authenticate and associate user devices with WLANs, allowing for pre-caching of anticipated online content based on user information, social network contacts, and internet traffic patterns, enabling personalized pre-caching on wireless network access devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If pre-caching is implemented on WLAN access points, then latency in accessing online content is reduced, but cache storage limitations prevent effective cache hit rates

Engineering Contradiction:
ImprovelatencyVSAvoidcache storage capacity
Core Design Contradiction:
Loss of timeVSQuantity of substance

Solution Approach 1:

The system performs pre-caching of online content on WLAN access points before users actually request it. The server predicts which content users will access based on their profiles, social network data, and traffic patterns, then proactively caches this content on the access point's storage, reducing latency when users request the content.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention segments the caching strategy by creating separate cache partitions for different users on the access point. Each user has their own partition where predicted content is cached, allowing the system to manage limited storage space efficiently by allocating cache capacity based on user-specific predictions rather than using a single shared cache.

Inventive Principle:
Principle #1Segmentation

2Device complexity

If traditional caching methods are used without user-specific prediction, then cache management is simple, but cache hit rates have minimal impact on latency

Engineering Contradiction:
Improvecache management complexityVSAvoidlatency reduction effectiveness
Core Design Contradiction:
Device complexityVSLoss of time

Solution Approach 1:

The system uses feedback loops where the server continuously monitors user behavior, cache hit rates, and traffic patterns. This feedback is used to refine prediction algorithms and adjust which content is pre-cached for each user, improving cache effectiveness over time while maintaining manageable complexity through automated adjustments.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The invention changes the parameters used for cache management from generic content popularity metrics to user-specific parameters including user profiles, social network connections, and individual browsing behavior. This transformation allows the system to predict and cache content that is relevant to each specific user, significantly improving cache hit rates and latency reduction effectiveness.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If cloud-based identity authentication is implemented, then personalized pre-caching can be enabled, but system complexity increases

Engineering Contradiction:
Improvepersonalized pre-caching capabilityVSAvoidauthentication and data collection system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system uses a universal cloud-based identity authentication mechanism that serves multiple functions: it authenticates users, retrieves their profile data, and enables personalized pre-caching. This multi-functional approach reduces overall system complexity by consolidating authentication and data retrieval operations into a single standardized process rather than requiring separate systems for each function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP3257293B1Pre-caching on wireless access point
Publication Date: 2020.01.29 GOOGLE LLC
  • EP3257293B1 patent drawingFigure 1
  • EP3257293B1 patent drawingFigure 2
  • EP3257293B1 patent drawingFigure 3

AI summary

A method and network access device for providing pre-cache online content is described. The method and network access device include receiving pre-cache notification for online content anticipated to be requested from a user account, requesting the online content from a content server in response to receiving the pre-cache notification, receiving the requested online content from the content server, receiving a request from a client device on which the user account is signed in on and linked to the network access device for the online content, and returning the stored online content from the cache-memory to the client device in response to the request of the online content.