Multi-Band Radio Allocation for Dynamic Spectrum Switching

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Solution Overview

Problem

The demand for radio spectrum to support a high density of personal electronic devices connecting to mobile networks is often met with insufficient licensed spectrum, while unlicensed and semi-licensed spectrum is not uniformly utilized for all types of voice and data services.

Innovation Solution

A method for allocating user equipment (UE) to various radio bands based on factors such as distance from the mobile network cell infrastructure, signal strength, and required quality of service, dynamically switching between licensed, unlicensed, and semi-licensed bands to optimize bandwidth use and reduce costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If licensed radio spectrum is used to support high density of personal electronic devices, then network reliability is improved, but cost increases and spectrum availability is insufficient

Engineering Contradiction:
Improvenetwork availabilityVSAvoidspectrum availability
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The patent combines licensed, unlicensed, and semi-licensed spectrum bands into a unified multi-band radio access network. The base station dynamically allocates user equipment across different band types, merging their complementary characteristics to achieve both high reliability from licensed bands and abundant capacity from unlicensed/semi-licensed bands.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The radio access network is designed to universally support multiple spectrum types (licensed, unlicensed, semi-licensed) for the same voice and data services. The system can flexibly switch between band types based on service requirements, making the network infrastructure multi-functional and adaptable to different spectrum conditions.

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

2Quantity of substance

If unlicensed and semi-licensed spectrum is used for communicative links, then cost is reduced and spectrum quantity is increased, but uniform utilization for all service types is not achieved

Engineering Contradiction:
Improvespectrum quantityVSAvoidservice type adaptability
Core Design Contradiction:
Quantity of substanceVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic spectrum allocation where the base station continuously monitors radio conditions, service types, and band availability. User equipment is dynamically switched between licensed, unlicensed, and semi-licensed bands based on real-time requirements, enabling flexible adaptation to different service types while utilizing abundant spectrum resources.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters including frequency band selection, modulation schemes, and transmission power based on service type and radio conditions. This allows unlicensed and semi-licensed bands to be adaptively used for different services (voice, data, video) by adjusting technical parameters to match service requirements.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12550190B2Multi-band radio allocation for mobile networks
Publication Date: 2026.02.10 T MOBILE US INC
  • US12550190B2 patent drawing
  • US12550190B2 patent drawing
  • US12550190B2 patent drawing

AI summary

This disclosure is directed to allocation of one or more radio bands to a user equipment (UE) for establishing a radio link with a radio node (e.g., eNodeB or gNodeB). The radio bands may include a shared band, such as citizens band radio service (CBRS), a primary licensed band, such as the B66 band, and/or an unlicensed band, such as B46 band. A radio communications system may consider a variety of parameters associated with the distance of a UE from a radio node, signal strength of a signal from the UE, the services requested by the UE, and/or spectral availability of the each of the radio bands to determine which radio band(s) to allocate to the UE. In some cases, the radio band allocated to a UE may be dynamically changed by the radio communications system as conditions related to the UE and/or the mobile network change.