SDR Mobile Terminal Networking via Spectrum Segmentation

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Solution Overview

Problem

Existing mobile communication networks face challenges in providing coverage in vast and sparsely populated areas and hotspot areas due to limited base station capacity and idle radio frequency spectrum resources, leading to communication failures and wasted resources.

Innovation Solution

The method divides frequency spectrum into Commercial, Licensed, and Unlicensed bands, allowing mobile terminals to establish point-to-point radio connections using Software Defined Radio (SDR) technology, enabling communication through direct or relay connections on these bands, even outside the core network, and optimizing resource utilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If mobile operators build base stations in vast and sparsely populated areas, then network coverage is improved, but investment cost and resource utilization deteriorate due to low return rates

Engineering Contradiction:

Improvenetwork coverage areaVSAvoidinvestment return rate

Core Design Contradiction:

Area of stationary objectVSLoss of energy

Solution Approach 1:

Mobile terminals in sparsely populated areas establish direct peer-to-peer connections or connections through relay terminals without requiring base station infrastructure. The terminals themselves provide the networking service, eliminating the need for operator investment in base stations for these areas while maintaining communication capability.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Relay terminals act as intermediaries to establish indirect communication paths between terminals in areas without base station coverage. The relay terminal forwards data packets between the source and destination terminals, enabling communication in sparsely populated areas without requiring base station infrastructure.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If base station capacity is increased to serve more users in hotspot areas, then network capacity is improved, but resource saturation and investment cost worsen

Engineering Contradiction:

Improvenetwork capacityVSAvoidbase station resource saturation

Core Design Contradiction:

ProductivityVSQuantity of substance

Solution Approach 1:

The network traffic in hotspot areas is segmented into two paths: traffic that requires base station infrastructure and traffic that can be handled through direct terminal-to-terminal connections. This segmentation reduces the load on base stations, preventing resource saturation while maintaining high network capacity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces a new dimension for communication by establishing direct radio links between terminals in addition to the traditional base station pathway. This creates a parallel communication channel that increases overall network capacity without requiring additional base station resources.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Reliability

If mobile terminals establish connections through base stations, then communication reliability is improved, but resource waste and connection failure occur when base station resources are saturated

Engineering Contradiction:

Improvecommunication connection reliabilityVSAvoidradio frequency spectrum resource waste

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The patent implements dynamic path selection where mobile terminals can switch between base station-mediated connections and direct peer-to-peer connections based on real-time network conditions. When base station resources are available, connections are established through base stations for reliability; when resources are saturated, terminals establish direct connections to prevent connection failure and resource waste.

Inventive Principle:

Principle #15Dynamics

4Device complexity

If operator networking is used with base stations, then network organization is simplified, but coverage and accessibility deteriorate in areas without base station infrastructure

Engineering Contradiction:

Improvenetwork organization complexityVSAvoidnetwork coverage area

Core Design Contradiction:

Device complexityVSArea of stationary object

Solution Approach 1:

Mobile terminals autonomously establish direct connections with each other or with relay terminals without requiring base station infrastructure. The terminals themselves organize and manage the communication, eliminating the need for operator-deployed base stations in remote areas while expanding network coverage.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS9681484B2Networking method for mobile terminals and mobile terminal

Publication Date: 2017.06.13 SANECHIPS TECH CO LTD

AI summary

A networking method for mobile terminals is provided, including: dividing a frequency spectrum resource suitable for operation in a mobile communication network into three kinds of frequency bands which are a CB, a LB, and a UB; and establishing, by a calling mobile terminal, a radio communication connection with a called mobile terminal on the CB or the LB or the UB; wherein the calling mobile terminal and the called mobile terminal are implemented by an SDR way. The present disclosure also discloses a mobile terminal. Accordingly, not only a utilization rate of a frequency spectrum resource and a resource usage rate of a base station are improved, a coverage range of the mobile communication network is expanded, but also mobile terminal user experience is improved.