Dynamic Carrier Band Allocation for Wireless Devices

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Solution Overview

Problem

Wireless devices operating in wireless networks face performance degradation and interference when moving between indoor and outdoor environments due to the inability to switch between high and low carrier bands based on location, as high carrier bands do not penetrate buildings and are susceptible to external signal interference.

Innovation Solution

Implementing a system where access nodes classify wireless devices as indoor or outdoor and instruct them to switch between high and low carrier bands based on location, using registration notifications and status reports to optimize band selection and reduce interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If wireless networks operate on high carrier bands, then outdoor signal coverage is improved, but indoor signal penetration deteriorates

Engineering Contradiction:
Improvesignal strengthVSAvoidsignal degradation indoors
Core Design Contradiction:
Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

The system dynamically switches the operating carrier band based on the wireless device's location (indoor/outdoor status). Access nodes monitor device location and instruct devices to switch between high carrier bands (for outdoor coverage) and low carrier bands (for indoor penetration), making the network adaptive to changing environmental conditions rather than fixed on a single band.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention changes the operating parameter (carrier band frequency) based on location conditions. High carrier bands are used when devices are outdoors for better coverage, while low carrier bands are selected when devices are indoors to improve signal penetration, thus optimizing performance by adjusting the frequency parameter according to environmental requirements.

Inventive Principle:
Principle #35Parameter changes

2Object-affected harmful factors

If wireless devices operate on low carrier bands indoors, then signal penetration is improved, but susceptibility to external interference increases

Engineering Contradiction:
Improvesignal penetrationVSAvoidexternal signal interference
Core Design Contradiction:
Object-affected harmful factorsVSObject-generated harmful factors

Solution Approach 1:

The system dynamically adjusts the carrier band selection based on real-time location detection. When a device is detected to be indoors, the access node instructs it to switch to low carrier bands for better penetration. When the device moves outdoors, it switches back to high carrier bands to avoid external interference, making the interference avoidance adaptive rather than static.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The access node acts as an intermediary that monitors device location and manages band switching decisions. It receives location information from devices, determines the appropriate carrier band, and instructs devices to switch bands accordingly, thereby protecting devices from interference by making informed band selection based on environmental context.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Device complexity

If wireless devices use fixed operating bands, then device complexity is reduced, but adaptability to different locations deteriorates

Engineering Contradiction:
Improveoperation modeVSAvoidlocation-based performance
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The system enables wireless devices to automatically adapt to different locations through self-service mechanisms. Devices report their location status (indoor/outdoor) to access nodes, which then autonomously determine the appropriate carrier band and instruct devices to switch. This automated feedback and control loop eliminates the need for complex user intervention while maintaining adaptability across different environments.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS10440712B1Systems and methods for frequency allocation in a wireless network
Publication Date: 2019.10.08 SPRINT SPECTRUM LP
  • US10440712B1 patent drawing
  • US10440712B1 patent drawing
  • US10440712B1 patent drawing

AI summary

Systems and methods are described for assigning operating bands to wireless devices of a wireless network. Registration notifications for a plurality of wireless devices are received at an access node. Each of the plurality of wireless devices are classified as either an indoor wireless device or an outdoor wireless device. The access node instructs wireless devices classified as indoor wireless devices to operate on a first operating band. The access node instructs wireless devices classified as outdoor wireless devices to operate on a second operating band.